CN1127207A - Power apparatus of bicycle with motor - Google Patents

Abstract

A motor in a power device which is directly connected with a rear wheel of a bicycle is started by a pedal of the bicycle. When in the circumstance of utilizing the motor to carry out the power driving, the pedal 12 is firstly pedaled to drive the bicycle 11, then an output shaft sleeve 40 (in rotation) of a speed reducer 30 is combined with a gear IV 35 at the final grade by a claw clutch which is composed of a claw 40b and a claw bracer 40 manually, a gear system rotates to become an integral input shaft 32 together with a gear 132a which is concentrically arranged on an output shaft 26 of the motor, which is also combined with the output shaft 26 of the motor due to the function of a one-way overrunning clutch, then the motor is rotated to be started.

Description

The engine installation of the bicycle of band primary mover

The power that the present invention relates to that the manpower that utilizes pedal to carry out is travelled and utilize driving engine to carry out travels and the engine installation of the bicycle of the band primary mover of usefulness, and its driving engine is to be installed on the vehicle body of bicycle.

To be erected at by the Poewr transmission mechanism that sprocket wheel constitutes between the rear wheel and crank pedal as drive wheel, on the bicycle of such band primary mover, for making not enlarging every width between left and right of pedal with vehicle, preferably with engine configurations outside the revolution range of pedal, and make driving engine near rear wheel as far as possible, consider that from the transmission efficiency aspect of driving engine output this suits.

On the other hand, from the light of variable-speed motor and miniaturization aspect, preferably this variable-speed motor is configured in the downstream of the transmission of power direction of utilizing the Poewr transmission mechanism that pedal carries out.

For the torque transfer of the bicycle of realizing the band primary mover that the premises creates for example has the Japanese Patent spy to open the content that clear 59-No. 45280 communiques are announced.The torque transfer of the bicycle of the band primary mover that this communique is announced, its driving engine is to be configured in for example rear wheel one distolateral of drive axle, another distolateral wheel that clips at rear wheel disposes variable-speed motor simultaneously, also will be outside the revolution range of crank pedal with engine configurations, whereby, make pedal between left and right every with the narrow width of vehicle, and make driving engine near rear wheel, to seek to improve the transmission efficiency of driving engine output, and then variable-speed motor is configured in the transmission of power direction downstream that utilizes the Poewr transmission mechanism that pedal carries out, reach the light and miniaturization of this variable-speed motor, realized that also the outward appearance of rear wheel and driving engine etc. is integrated.

But from the torque transfer of the bicycle of above-mentioned band primary mover in the past, engine starting is to utilize kickpedal formula starter, and therefore the problem that exists is to keep bicycle running attitude to be difficult to carry out start-up function.

The present invention In view of the foregoing finishes, and its purpose is to provide the engine installation of the bicycle that can utilize the band primary mover that pedal voluntarily starts.

The described invention of claim 1 is travelled and is utilized driving engine to carry out on the engine installation of bicycle of the band primary mover that power travels can utilizing pedal crank to carry out manpower, it is characterized in that: the formation of this engine installation comprises: driving engine, it is mounted to one with case on the fixedly hind axle that is bearing in above-mentioned bicycle with freely rotating, and the output shaft of this driving engine and above-mentioned hind axle are provided with abreast; Reductor, the train of gears that it is made up of hollow input shaft and multiple sets of teeth wheel and the output sleeve of hollow constitute, this hollow input shaft is installed in the above-mentioned case and becomes integral body with a gear in the said gear system, this gear can be bearing on the output shaft of above-mentioned driving engine with one heart pivotally, the output sleeve of above-mentioned hollow is coaxial with the final output gear of said gear system, and can be bearing on the above-mentioned hind axle pivotally; Mono-directional overrun clutch, it is mounted between the hollow input shaft of the output shaft of above-mentioned driving engine and above-mentioned reductor so that only with above-mentioned trailing wheel the place ahead to revolution pass to the output shaft of driving engine by above-mentioned input shaft; Centrifugal type automatic clutch is to be used to link the output shaft of above-mentioned driving engine and the input shaft of above-mentioned reductor; Rear wheel hub, it is coaxial and be fixed thereon with above-mentioned output sleeve, the used as braking drum; Foot-operated drive sprocket wherein is equipped with ratchet, and this ratchet can only pass to above-mentioned output sleeve by pedal with the revolution of working direction; Ratchet, it is to be installed between above-mentioned speed reducer output shaft cover and the final output gear, be used for and the revolution of working direction can only be passed to rear wheel hub, claw clutch, it is to be used for carrying out the power binding with manual output sleeve and above-mentioned final gear with above-mentioned reductor.Utilize the travel moment of gyration of used pedal of manpower to make the engine starting of engine installation.

Accessory Right requires 1 described invention, at the crank that treadles bicycle is carried out under the situation that manpower travels, and the torque that acts on the pedal passes to driven sprocket by drive sprocket by chain.At this moment, the not combination of ratchet of reductor, manpower power do not bear the revolution of the train of gears that is accompanied by reductor and the resistance that produces pass to trailing wheel.Pedal is rotated, under the situation of freely travelling, be installed in the ratchet idle running in the driven sprocket, the bicycle inertia traveling.Under the situation of braking, also can irrespectively operate with reductor.

Utilizing driving engine to carry out under the situation that power travels, at first, treadle and make bicycle running, then with the output sleeve (in the revolution) that manually makes reductor by claw clutch when final grade gear combines, then train of gears revolution, be installed in input gear axle on the engine output shaft with one heart because the effect of mono-directional overrun clutch combines with the output shaft of driving engine, driving engine is turned round, make its starting.During the slow speed of revolution of driving engine is rotating, there is not transmission of power, driving engine carries out freely turning round.At this moment, operation manually operated claw clutch is removed the combination of this power-transfer clutch.When the throttle gate of opening driving engine improved rotating speed, centrifugal type automatic clutch worked, and engine output shaft combines with the reductor input shaft, and power passes to rear wheel hub and trailing wheel by the combination of ratchet by output sleeve by final gear along train of gears.When power travelled, the sprocket wheel of rear wheel-side was in the inertia traveling state.When driving engine stops, promptly being returned to above-mentioned manpower motoring condition.

The described invention of claim 2, except above-mentioned purpose, for when utilizing M/C to make engine starting, only need increase minority part to have constituted and employ device, and it is simple to become start-up function, the engine installation of compact conformation, the described power that utilizes driving engine to carry out of claim 1 travelled make the hand starting formula of utilizing kick starter to carry out, replace mono-directional overrun clutch between the hollow input shaft be installed in engine output shaft and reductor but the configuration antifriction-bearing box, simultaneously with the output sleeve and final direct geared binding of reductor.

Accessory Right requires 2 described inventions, under the situation of utilizing the hand starting mode to travel, pulling starting handle makes engine starting, when rotating throttle grip raising engine speed, then centrifugal automatic clutch engages, power is by gear I, gear II, gear III, gear IV, by combining of ratchet and internal tooth, passes to rear wheel hub and trailing wheel by output sleeve.

The described invention of claim 3, except above-mentioned purpose, just can realize the driving with buzzer phone etc. of lighting a lamp of illuminator lamp in order not use other power supply, on the driving engine of claim 1 or the described generation bicycle of claim 2 power, and establish common igniting with flywheel magnet and coil, and installation power generation assembly, the first-class branch of this power generation assembly dispose a plurality of magnet and with the field winding of this magnet respective amount, above-mentioned a plurality of magnet five equilibrium is configured on the circumference, with this power supply as the bicycle subsidiary machinery.

Accessory Right requires 3 described inventions, on the driving engine that produces bicycle power, and establish common igniting with flywheel magnet and coil, and installation power generation assembly, the first-class branch of this power generation assembly dispose a plurality of magnet and with the field winding of this magnet respective amount, therefore, become possibility with this power supply as the bicycle subsidiary machinery of illuminator lamp and buzzer phone etc.

The described invention of claim 4, except above-mentioned purpose, for the breather port to the outside atmosphere opening is not set, can prevent because self-heating overheated with from the hot caused power generation assembly of the driving engine of adjacency, on the described flywheel magnet of claim 3, form muscle, be used for the air in the device of accommodating power generation assembly being circulated by the revolution of this flywheel magnet.

Accessory Right requires 4 described inventions, because the flywheel magnet of band muscle, this flywheel magnet becomes a kind of fan, along with the revolution of flywheel magnet, the interior air of device of accommodating electrical generator circulates, because the cooling that this circulation obtains, suppressed the power generation assembly self-heating with from the driving engine of adjacency that heat caused was overheated, therefore, the breather port to the outside atmosphere opening is not set, can prevents that the temperature of power generation assembly from rising.

The described invention of claim 5, except above-mentioned purpose, in order to use existing constituent part, provide and only carry out hole processing, do not increase the extremely engine installation of cheap band ventilating structure of part, the formation of the described claw clutch of claim 1 comprises: the axle orienting sleeve, and it is to be fixedly installed on the casing and cam path is arranged on sidewall; Axle, it is airtight and is installed in sliding freely in the above-mentioned axle orienting sleeve; The orienting sleeve protective cover, it is the outside that is installed in above-mentioned axle orienting sleeve sliding freely; Pin handle, it is to be fixed on the above-mentioned orienting sleeve protective cover by screw thread, and end is to insert above-mentioned axle loosely by above-mentioned cam path to go up in the set blind hole other end and driving Suo Lianjie.The mode of operation of clutch operating portion is that when rotating above-mentioned axle with above-mentioned pin handle, this axle promptly alongst moves by above-mentioned cam path.Axle center part at above-mentioned axle is provided with the hole, this hole blind hole that box house and setting-in pin handle is used is communicated with, and formation path in the gap of the gap of gap, pin handle and cam path by this hole, pin handle and blind hole and an orienting sleeve and orienting sleeve protective cover forms ventilating structure by this path.

Accessory Right requires 5 described inventions, when the conduction heat that is subjected to from driving engine, hermetic closed the temperature inside the box rises, when this case pressure inside rises, gear case in-to-in air reaches slack running fit portion by the hole on the axle of clutch operating portion, close gap by slack running fit portion is discharged in the outside atmosphere thus, makes the equilibrium of pressure of case pressure inside and outside atmosphere.

When temperature decline, when pressure became negative pressure, air flow backwards, and is same, the equilibrium of pressure of case internal pressure and outside atmosphere.

At this moment, the narrow and small gap of slack running fit portion is as the oil-trap of lubricating oil in action, prevents spilling of oil, prevents that simultaneously rainwater from invading from the outside.

Each one of Here it is existing constituent part has formed suitable vent path.

And this ventilating structure only need carry out hole processing, need not increase part, and is therefore extremely cheap.

The described invention of claim 6, except above-mentioned purpose, for a kind of bicycle that can reduce engine installation to the band primary mover of the vibration of the vehicle body transmission of bicycle is provided, it is characterized in that: have an end and be and be fixed on the described engine installation of claim 1 and the other end is the cramp bar that is extended configuration by this engine installation to the front side of above-mentioned frame by adapter plate, be sleeved on the other end cylindrical of this cramp bar the vibration-proof rubber body with from surrounding and support the support of this vibration-proof rubber body on every side, and be to be fixed on the vehicle body of above-mentioned bicycle, utilize the mounting appliance that above-mentioned vibration-proof rubber body is fixed on the above-mentioned frame that above-mentioned engine installation is installed.

Accessory Right requires 6 described inventions, makes the drive torque of driving engine pass to trailing wheel and travels, and promptly when power travelled, because the counteraction of the drive torque of driving engine, engine installation was fulcrum with the hind axle, rotate to the direction opposite with trailing wheel.

This rotation is stoped by cramp bar.And cramp bar extends to the part of front side, and counter-force is less, and the unplessantness displeasure when bearing counter-force is less.

In addition, because the variation of drive torque is with caused vibration mainly is the end that acts on this cramp bar from the out-of-balance force of driving engine, but the end of this cramp bar is to be bearing on the vehicle body of bicycle by the vibration-proof rubber body, therefore, this vibration is absorbed and is relaxed by the rigidity of cramp bar and the elasticity of vibration-proof rubber body.

Therefore, be eliminated from the caused unplessantness displeasure of the vibration of driving engine.

The described invention of claim 7 except above-mentioned purpose, for light and cheap structure supporting engine installation, utilizes hollow tube to constitute the described cramp bar of claim 6.

Accessory Right requires 7 described inventions, owing to adopt hollow tube, can realize with light and cheap structure supporting engine installation.

The described invention of claim 8, except above-mentioned purpose, extend the control rope of the engine installation of the throttle gate steel wire rope of coming, strangler valve steel wire rope etc. for outward appearance disposes well by the front portion of frame to the engine installation at rear portion, pass in the described hollow tube of claim 7 with rope controlling the used control of engine installation.

Accessory Right requires 8 described inventions, because hollow tube is to be extended to the front side of frame by the engine installation that is installed on the bicycle rear shaft, the control of the engine installation of the throttle gate steel wire rope by will being extended to the engine installation at rear portion by the front portion of frame, strangler valve steel wire rope or the like is passed in the above-mentioned hollow tube with rope, be connected on the engine installation, the unnecessary various control ropes of the configuration that exposes can be avoided, the good layout of outward appearance can be obtained.

The described invention of claim 9, except above-mentioned purpose, immerse in order to use the engine protection cover to prevent that too the mud of subsidiary engine class adheres to rainwater, in addition in order to be easy to heat radiation, improve the overall outward appearance of engine parts that adopts the air-cooled engine of travelling, it is characterized in that: the described driving engine of claim 1 is made the air-cooled engine of travelling with kick starter, be configured with this engine-horizontal and facing to travel direction, simultaneously the structure at its rear be according to the arranged in order of carburettor and airfilter they, above-mentioned driving engine has: the engine protection cover, it is to be installed between kick starter case that constitutes above-mentioned kick starter and the air filter case that constitutes above-mentioned airfilter, section be flute profile and profile be shape with above-mentioned kick starter case and above-mentioned air filter case form continuous shape and make the above-mentioned carburettor of covering around; Air extractor vent, it is to be arranged on the above-mentioned engine protection cover sidewall, is used to the airiness that makes this engine protection cover inside and outside; From the outstanding eaves portion that is provided with of engine protection cover, be used to cover the top of the air suctiton inlet of above-mentioned airfilter.

Accessory Right requires 9 described inventions, utilizes section shape for the engine protection cover of flute profile covers by around the carburettor that exposes between kick starter case and the air filter case, prevents that mud for carburettor from splashing and drench with rain.

In addition, utilize the eaves portion that is arranged on the engine protection cover can prevent that sealing is immersed in the air suctiton inlet of airfilter by the connecting portion of engine protection cover and air-filtering.

And, the outer shape just as kick starter case and air filter case of engine protection cover becomes continuous shape, therefore, travel kick starter case, engine protection cover and the air filter case of engine parts of air-cooled engine of employing seems to have the outward appearance of incorporate grace.

Add the engine protection cover and be provided with air extractor vent, so the inside and outside air of driving engine circulate, can prevent engine protection cover temperature inside rise (hot stagnation).

Here it is, utilizes the engine protection cover can synthetically obtain the ideal engine parts.

The described invention of claim 10, except above-mentioned purpose, in order to reach the noise silencer that cuts off the air-cooled engine of travelling purpose for the heat affecting of carburettor (subsidiary engine class), be on the described engine protection cover of claim 9, cleading to be set, it is the position that protrudes in the carburettor downside from side arm with becoming the cantilever beam shape to the inside, is used to cut off the radiant heat of noise silencer.

Accessory Right requires 10 described inventions, utilizes the cleading that is arranged on the engine protection cover, can cut off the radiant heat of the noise silencer of driving engine for carburettor.

Therefore, the unnecessary temperature that can suppress carburettor rises, and the performance of driving engine correspondingly tends towards stability.

The described invention of claim 11, except above-mentioned purpose, for can be easily and remove at short notice and be trapped in muffler body in-to-in greasy filth, it is characterized in that having exhaust muffler on the driving engine, its formation comprises: freeing pipe, and it is connected with the described exhaust opening of engine of claim 1; Muffler body, it is connected with above-mentioned freeing pipe, forms the greasy filth conveying end simultaneously; Lid can be arranged on the greasy filth conveying end of above-mentioned muffler body with loading and unloading; A plurality of dividing plates are arranged at the inside of above-mentioned muffler body, in order to the inside of this noise silencer of zoning to form a plurality of expansion chambers; Trail pipe is arranged on the inside of above-mentioned muffler body, is connected with the expansion chamber in waste gas flow path direction downstream.

Accessory Right requires 11 described inventions, and muffler body is to form the greasy filth conveying end in one portion.This greasy filth conveying end is to cover with lid, and this lid can be installed on the greasy filth conveying end with loading and unloading.Therefore, will unload on the greasy filth conveying end of lid by muffler body, when the greasy filth conveying end is opened wide, can will be trapped in the outside that muffler body in-to-in that the greasy filth conveying end the faced greasy filth on partly is fetched into muffler body by the greasy filth conveying end.Therefore, can easily get at short notice and remove the greasy filth be trapped on the muffler body in-to-in part that the greasy filth conveying end faced, can improve and get the operability of operating from the inside of muffler body except that greasy filth.

The described invention of claim 12, except above-mentioned purpose, for the size of space of pedal of the bicycle that makes the band primary mover is reduced to and common bicycle equal extent, it is characterized in that: the described driving engine of claim 1 is chosen to be the air-cooled engine of travelling, the cylinder of this driving engine is disposed towards the place ahead of travel direction on even keel, to be formed at simultaneously on this cylinder and make inclination to the shape away from the outstanding horizontal radiating gill of multi-disc in the side of bicycle, be short so that make the horizontal wide of travel direction the place ahead than the horizontal wide of rear.

Accessory Right requires 12 described inventions, shape to the outstanding radiating gill in frame side is to make inclination, so that the horizontal reductions of front side is short, therefore, the position that can make the pin that is considered to the cyclist who treadles that can interfere with radiating gill is near body side, in an amount equivalent to the short part of horizontal reductions.

Whereby, the size of space between the pedal of the left and right sides can be reduced to the degree identical with common bicycle.

So, the desirable miniaturization that gets voluntarily, the bipod of having eliminated simultaneously because of the cyclist separately causes the difficult shortcoming that treadles.

The described invention of claim 13, except above-mentioned purpose, though for be the band primary mover bicycle running the time or when stopping, can both make the interior air of pit of configuration light-up plug be easy to flow, it is characterized in that: driving engine is chosen to be the air-cooled engine of travelling, the cylinder of this driving engine is disposed towards the place ahead of travel direction on even keel, simultaneously be installed on light-up plug on this cylinder around, to the medial extremity of the outstanding radiating gill in the place ahead of travel direction is to couple together the muscle of the conical surface-shaped that forms, with clip that above-mentioned light-up plug is disposed at up and down both sides and between the radiating gill of vertical direction the muscle portion of folded above-mentioned conical surface-shaped remove respectively.

Accessory Right requires 13 described inventions, in the pit of the radiating gill that disposes light-up plug, forms ventilating part respectively in the top and the bottom that clip light-up plug, this ventilating part with towards between the radiating gill of vertical direction, be communicated with.

Because the formation of this ventilating part, utilize driving engine to enter air warpage direction up and down in the pit of the cingens conical surface-shaped of muscle institute in travelling by the forward end of cylinder at bicycle, mobile between radiating gill by the ventilating part of upper and lower sides.In addition, during racing of the engine, because convection current, the air in the pit flows from bottom to top in bicycle stops.

In other words, when stopping, the air in the pit all is to flow easily when bicycle running, and air can not be stuck in this pit.

Therefore, improve the cooling effectiveness of cylinder, can suppress the reduction of engine efficiency and the unnecessary temperature build-up of light-up plug.

The described invention of claim 14, except above-mentioned purpose, airfilter for the cheap driving engine that obtains to have inhaling silencer, it is characterized in that: possess airfilter, it is the airfilter that the carburettor with the described driving engine of claim 1 is installed together, it has air filter case, airfilter protective cover and airfilter core, above-mentioned air filter case and above-mentioned carburettor link together, above-mentioned airfilter protective cover is mounted on the above-mentioned air filter case, above-mentioned airfilter core is to be clamped in by in above-mentioned air filter case and the formed airfilter inner chamber of above-mentioned airfilter protective cover, on above-mentioned airfilter, form inhaling silencer, this inhaling silencer is to be formed by the air-breathing noise elimination portion of tunnel shape and the upper wall with semicircle breach of above-mentioned airfilter inner chamber, the outstanding upside that is arranged at above-mentioned air filter case of the above-mentioned tunnel air-breathing noise elimination of shape portion, its downside and an end open wide.

Accessory Right requires 14 described inventions, and institute's suction air enters in the airfilter inner chamber by inhaling silencer, flows in the carburettor by becoming behind the airfilter core to purify air.

The inhaling silencer of tunnel shape section is to be divided into 2 parts in bottom side portion, and the part that is separated forms air filter case and airfilter protective cover respectively.Therefore, at the above-mentioned position that does not have the closed section shape on both, thereby the mould that casting forming is used is uncomplicated.So can reduce the manufacturing cost of molding die, moreover, erasure effect with had no difference in the past.

The airfilter of the driving engine of the described invention of claim 15 is characterized in that: on the airfilter of the driving engine of the described invention of claim 14, air filter case is made the casting forming spare of aluminum alloy.

In view of this, owing to the casting forming spare that air filter case is made aluminum alloy, can obtain to cool off the effect of carburettor.

The described invention of claim 16; except above-mentioned purpose; for the internal pressure of the gear case that will suffer engine thermal influence is held in necessarily; can prevent simultaneously that the interior oil seepage of gear case is in crankcase; and provide the simple structure cost to reduce and to prevent the ventilating structure that air funnel comes off simultaneously; it is characterized in that: on the sidewall of the said gear case of the above-mentioned case that the crankcase of the described driving engine of claim 1 and the gear case of the above-mentioned reductor that accumulates lubricating oil is integrated; integrally form outstanding breather chamber to foreign side; this breather chamber has facing to diapire downward-sloping in the gear case; the air funnel of hollow tube-shape is installed on the top of this breather chamber simultaneously; the air funnel of this hollow tube-shape has the air flue that is communicated with above-mentioned breather chamber; on above-mentioned air funnel and part that above-mentioned breather chamber is communicated with, has the throttling path of also wanting minor diameter than above-mentioned breather chamber and air flue; has simultaneously the narrow and small access that makes the bending that above-mentioned air flue is communicated with outside atmosphere in end with the opposite side of this throttling path; and the protection portion that surrounds above-mentioned air funnel integrally is set on the said gear case, thereby forms ventilating structure.

From then on constitute, when rising along with the temperature in the engaged gear case of 2 cycle engines, this gear case pressure inside rises.Therefore, gear case in-to-in air is directed into by the throttling path in the air flue of air funnel from breather chamber, is discharged to the foreign side of reductor from here by access.Therefore, the air exhaustion foreign side in the gear case can be made the internal pressure and the external pressure balance of this gear case.

Lubricating oil is being accumulated in inside at gear case, therefore, is mixing vaporific lubricating oil in this gear case in-to-in air.If when this mist of oil is discharged to the foreign side of reductor with air, the consumption of lubricating oil will increase.

Yet, with said structure, when the air in the gear case when breather chamber flows into air flue because this windstream is subjected to the throttling forcibly of throttling path, this airborne mist of oil is captured when contacting with the inner face of throttling path, separates from air.And, because the air flue of the air funnel that is communicated with the throttling path is broader than throttling path, when inrush of air arrives this air flue, the flow velocity of air reduces, therefore, heavier-than-air oil content is separated in by air in this air flue, is attached on the wall of air funnel.

Become aqueously by the mist of oil of separating in the air, the inner face from the wall of air funnel along the throttling path turns back to breather chamber.The diapire of this breather chamber is facing to downward-sloping in the gear case, and the oil content of therefore getting back to breather chamber can not be trapped on the diapire of this breather chamber, and still gets back in the gear case.

Therefore, the lubricating oil that is contained in the air is separated in by air in the inside of air funnel, and this air of having removed lubricating oil is discharged to foreign side by access.

In addition, because bigger inclination etc. takes place vehicle, even when the lubricating oil in the gear case flows in the access by the air flue of air funnel, but because this access is crooked narrow path, this access is owing to lubricated oil surface tension seals.Therefore, can prevent that the outflow of lubricating oil is in possible trouble.

Moreover above-mentioned air funnel only is the container of hollow cylindrical, therefore, constructs also simply, can provide at an easy rate.

Adding air funnel is to be surrounded by protection portion, therefore can make it not by horizontal external force damage by this protection portion protection air funnel, can prevent that it from splitting away off from gear case.

The described invention of claim 17, except above-mentioned purpose, for a kind of bicycle with primary mover is provided, on its engine installation of installing, has a kind of lead lead division, the characteristics of this lead lead division are, even during the lead on the electrical generator that side-pulling is connected on the engine installation to be installed outside the wall body of engine installation, can not be short-circuited or break yet, it is characterized in that: in the described engine installation of claim 1, the electrical generator that is generated electricity by above-mentioned engine drive is housed, on the tank wall of this engine installation, form the lead of forming by the 1st slot part and the 2nd slot part maintenance groove, above-mentioned the 2nd slot part is positioned on another part of the above-mentioned wall body that intersects with the part of the above-mentioned wall body at the 1st slot part place, one end of above-mentioned the 2nd slot part is connected with above-mentioned the 1st slot part, and the other end bonded assembly lining mount pad of above-mentioned the 2nd slot part of formation and above-mentioned maintenance groove on above-mentioned wall, the lining configuration of simultaneously lead being used is fixed on this mount pad, in addition, dispose and above-mentioned electrical generator bonded assembly lead in above-mentioned the 2nd slot part at above-mentioned the 1st groove from above-mentioned maintenance groove, simultaneously this lead is passed and remains in the above-mentioned lining, be pulled out to the outside of above-mentioned wall body then, moreover, length direction along above-mentioned the 2nd slot part on above-mentioned lining forms protrusion, and this protrusion is facing to the cross part of above-mentioned the 1st slot part and above-mentioned the 2nd slot part.

From said structure, when normal condition, lead is to be configured in the 1st slot part and the 2nd slot part of the maintenance groove on the wall body that is formed at engine installation, by being inserted and secured on the outside that lining on the lining mount pad is drawn out to wall body.

And when mounted, the terminal of lead and the length after the installation between the lining are reserved shorter, or when from the outside of case lead being applied the power of pull lead laterally after the installation, then lead can be by running out of in the 1st slot part that keeps groove.

At this moment, lead is keeping near the groove, resembles to bump on the end of lining protrusion near moving the line of the protrusion end of the terminal of electrical generator and lining.Therefore, can stop lead to be moved further by the end of lining protrusion.

At this, the object that has, lead is in contact with it and will produces adverse consequences, for example be arranged at the magnet of the electrical generator on the revolution flywheel of kick starter, so terminal position of the protrusion of lining, be set near such object with it, would be better and be set on the position near the 1st slot part that keeps groove, if be set on such position, the lead that is separated from the 1st slot part that keeps groove causes short circuit or broken string with regard to not contacting with the magnet of set electrical generator on the revolution flywheel of kick starter.

Therefore, can obtain a kind of lead lead division,, also can not be short-circuited or break even will be connected lead on the electrical generator when the outer side-pulling of wall body.

Brief description of drawings

Fig. 1 is the left view of bicycle of the band primary mover of installing engine installation of the present invention;

Fig. 2 is A-A cutaway view of Fig. 1;

Fig. 3 is the cutaway view of the engine installation of the present invention the 1st embodiment;

Fig. 4 is B-B cutaway view of Fig. 3;

Fig. 5 is that the C of Fig. 4 is to expansion drawing;

Fig. 6 is the cutaway view of the engine installation of the 2nd embodiment of the present invention;

Fig. 7 is F-F cutaway view of Fig. 6;

Fig. 8 is the D-D cutaway view that is used for illustrating the Fig. 3 around the power generation assembly of engine installation of the 3rd embodiment of the present invention;

Fig. 9 is E-E cutaway view of Fig. 8;

Figure 10 is the cutaway view at power generation assembly position that is used to illustrate the engine installation of the 4th embodiment of the present invention;

Figure 11 is along the cutaway view of G-flywheel magnet that the G line dissects among Figure 10;

Figure 12 is the block diagram of structure that is used to illustrate the clutch operating portion that becomes the band ventilating structure around the claw clutch of the present invention the 5th embodiment;

Figure 13 is the front section view that is used to illustrate the path of the ventilating structure that the structure of the clutch operating portion of as-is condition utilization Figure 12 obtains;

Figure 14 is the birds-eye view of the clutch operating portion of Figure 12;

Figure 15 is the left view of the clutch operating portion of Figure 12;

Figure 16 is the lateral plan of structure of bicycle of the band primary mover of expression the present invention the 6th embodiment;

Figure 17 is the A-A cutaway view among Figure 16;

Figure 18 is the lateral plan of representing with the bearing set amplification together of this engine installation of supporting around the engine installation of the 6th embodiment;

Figure 19 is the birds-eye view of the device of Figure 18;

Figure 20 is the B-B line cutaway view among Figure 18;

Figure 21 is the exploded perspective view of structure of bearing set that is used to illustrate the supporting engine installation of the 6th embodiment;

Figure 22 is the block diagram of the outward appearance of the expression engine parts relevant with the bicycle use engine installation of the band primary mover of the 7th embodiment of the present invention;

Figure 23 is the front view of the engine parts seen of the A direction from Figure 22;

Figure 24 is the lateral plan of the engine protection cover seen of the B direction from Figure 23;

Figure 25 is the C-C cutaway view among Figure 23;

Figure 26 is the lateral plan of the engine protection cover seen of the D direction from Figure 23;

Figure 27 is the cutaway view of the A-exhaust muffler that the A line dissects in Figure 28 of the 8th embodiment of the present invention;

Figure 28 is the cutaway view of the exhaust muffler that dissects of the B-B along Figure 27 of above-mentioned the 8th embodiment;

Figure 29 is the cutaway view of the C along Figure 27-exhaust muffler that the C line dissects of above-mentioned the 8th embodiment;

Figure 30 is the left view that the bicycle driving is represented with the rear wheel-side of the bicycle of the band primary mover that these engine parts are installed with engine parts of the 9th embodiment of the present invention;

Figure 31 is a birds-eye view of being seen the main portion that the bicycle of the band primary mover of above-mentioned the 9th embodiment obtains by the top;

Figure 32 is the block diagram that the cylinder of seeing the formation engine parts from the upper left side of above-mentioned the 9th embodiment obtains;

Figure 33 is the longitudinal section of the airfilter of the 10th embodiment of the present invention;

Figure 34 is the block diagram of the vital parts of airfilter shown in Figure 33;

Figure 35 is the lateral plan of mounting portion of the air funnel of expression the 11st embodiment of the present invention;

Figure 36 is A-A cutaway view of Figure 35;

Figure 37 is the cutaway view of air funnel;

Figure 38 is the birds-eye view of the mount pad of gear case;

Figure 39 is the figure of engine installation of bicycle of the band primary mover of expression the 12nd embodiment of the present invention;

Figure 40 is the cutaway view of the lead lead division of above-mentioned the 12nd embodiment of expression;

Figure 41 is that the B of Figure 40 is to view;

Figure 42 is the exploded perspective view of the lead lead division of above-mentioned the 12nd embodiment of expression.

Embodiment

Below, referring to the description of drawings embodiments of the invention.

The engine installation of bicycle of the band primary mover of the 1st embodiment of the present invention is described referring to Fig. 1-Fig. 5.

Fig. 1 is that expression can be carried out travel left surface with the bicycle 11 that carries out the band primary mover that power travels with driving engine of manpower with foot-operated crank, Fig. 2 is the figure by the A of top birds-eye view 1-A section gained, Fig. 3 is the cutaway view of the engine installation of the 1st embodiment of the present invention, and Fig. 4 is B-B cutaway view of Fig. 3; Fig. 5 is that the C of Fig. 4 is to expansion drawing.

In Fig. 1 and Fig. 2, making the manpower power that pedal 12 revolutions are taken place is to be passed to through chain 16 by the drive sprocket 13 on the axle that directly is attached at pedal 12 to make trailing wheel 17 rotating driven sprockets 14.As Fig. 2 and shown in Figure 3, hind axle 15 (fixedly hind axle) is rear wheel fork 19, the 19 ' supporting by the bicycle 11 of band primary mover, utilize setscrew nut 57 and retaining nut 58 to fixedly install, trailing wheel 17 is bearing on the hind axle 15 with freely rotating by output sleeve 40.

Power 21 is supported by hind axle 15 with freely rotating, and for making engine installation 21 left sides that protrude in bicycle within reason, trailing wheel 17 is to bloat funnel to the left by the big spoke 18 of rigidity.When the output of engine installation 21 is delivered to rear wheel hub 71, for the moment of reaction of engine installation 21 as shown in Figure 4, be to bear by connecting rod 76, this connecting rod 76 be by the pin 77 that is fixedly set in arm 75 ends be installed in pin 78 on the rear wheel fork 19 and carry out keying and close, arm 75 is to be fixedly set on the gear case 31 of engine installation 21.

On engine installation 21, driving engine 25 is mounted on the gear case 31 and becomes one, and this gear case 31 is to be bearing in freely rotating on the fixedly hind axle 15 of bicycle 11, and its engine output shaft 26 is provided with abreast with hind axle 15.Many group reducing gear and several power-transfer clutchs are housed in gear case 31 and constitute reductor 30.

The following describes the details of this reductor 30, the input shaft 32 of hollow is bearing on the engine output shaft 26 with one heart, and gear I32a integrally is produced on the periphery of this input shaft 32.Tooth II33 and this gear I32a engagement, this gear II33 is fixedly installed on the gear wheel shaft 34, and this gear wheel shaft 34 makes integral body with gear III34a, final level gear IV35 and said gear III34a engagement.Axle sleeve 37 fixedly installs with gear IV35 and is integral, and axle sleeve 37 forms the overcoat of needle bearing 36, cooperates with hind axle 15 with freely rotating by needle bearing 36.

Between the hollow input shaft 32 of engine output shaft 26 and reductor 30, wedge cams 32b shown in Figure 4 is arranged in the input shaft 32, and mono-directional overrun clutch roller 61 is loaded on wherein and forms mono-directional overrun clutch, so that only the revolution of trailing wheel 17 working direction is passed to engine output shaft 26 by above-mentioned input shaft 32.The 65th, centrifugal type automatic clutch is engine output shaft 26 and input shaft 32 to be linked reaching the regulation rotating speed.

Output sleeve 40 is bearing on the hind axle 15 with freely rotating by steel ball 41, on this output sleeve 40, be set with the shaft sleeve part of rear wheel hub 71 with the driven sprocket 14 of band ratchet of used as braking drum, this ratchet can only pass to above-mentioned rear wheel hub 71 from pedal with the revolution of working direction, in addition, forms ratchet by the internal tooth 40a of output sleeve 40 with the ratchet 38 that is installed on the axle sleeve 37, this ratchet can only pass to output sleeve 40 and rear wheel hub 71 with the revolution of working direction from gear IV35.Brake wheel inboard at rear wheel hub 71 is provided with M/C drg 72, and the fixed part of this hand brake 72 is mounted on the gear case 31.Pawl 40b is set on output sleeve 40 simultaneously, forms manual claw clutch with the pawl cover 46 that on the hub portion 35b of gear IV35, slides by this pawl 40b.

As Fig. 4 and shown in Figure 5, the pawl of pawl cover 46 enters the revolution of transmitting gear IV35 in the groove 35a that is arranged on the gear IV35.The 45th, make pawl cover 46 compression springs of returning.During from the outside with M/C pulling pin handle 49, then owing to fixing axle 52 revolutions of pin handle 49, pin handle 49 is along the grooved cam 48a oblique course that is arranged on the orienting sleeve 48, axle 52 is projected into the inside of gear case 31, promote lever 47, therefore, pawl cover 46 is outstanding by the groove 35a of gear IV35, manually claw clutch engagement.This manual claw clutch, its shape forms as shown in Figure 5, pawl 40b on the output sleeve meshes when the arrow directions X relatively moves with respect to the cover of the pawl on the gear IV35 46, (although driving engine 25 startings when turning round relatively in opposite direction, rotating speed rises, but manually operated pin handle 49 is hauled when not letting go), then do not mesh and make a concession.

Moreover, the 42nd, needle bearing, the 50th, orienting sleeve protective cover, the 51st, spring, the 55th, antifriction-bearing box adjustment nut, the 56th, retaining nut, the 88th, spline, the 89th, the axle collar.Other 90 expression noise silencers, 91 expression cylinder heads, 92 expression carburettors, 93 expression airfilters.

Below, the effect of above-mentioned engine installation 21 is described.

Foot pedals 12 is carried out under the situation that manpower travels bicycle 11, and the torque that acts on the pedal 12 passes to driven sprocket 14 by drive sprocket 13 by chain 16.At this moment, the ratchet 38 of reductor 30 does not combine with the internal tooth 40a of output sleeve 40, manpower power do not bear the revolution of the train of gears that is accompanied by reductor 30 and the resistance that produces pass to trailing wheel 17.

Pedal 12 is rotated, under the situation of freely travelling, be contained in the ratchet idle running in the driven sprocket 14, the bicycle inertia traveling.When hand brake 72 is worked, also can irrespectively operate with reductor.

Utilizing driving engine to carry out under the situation that power travels, at first, treadle and 12 bicycle 11 is travelled, then with manually when making the output sleeve 40 (in the revolution) of reductor 30 by pawl 40b and pawl cover 46 claw clutches that constituted and final grade gear IV35 combine, then train of gears revolution, become single-piece input shaft 32 because the effect of mono-directional overrun clutch combines with engine output shaft 26 with the gear I32a on being installed in engine output shaft 26 with one heart, make the driving engine revolution, make its starting.During driving engine 25 is rotating with slow speed of revolution, and do not have transmission of power between the reductor 30, driving engine 25 carries out freely turning round.At this moment, operation manually operated claw clutch makes this power-transfer clutch break away from combination.When opening the throttle gate raising rotating speed that does not give graphic driving engine 25, centrifugal type automatic clutch 65 works, the input shaft 32 of reductor 30 combines with engine output shaft 26, power along train of gears by final gear IV35 by the combining of ratchet 38 and internal tooth 40a, pass to rear wheel hub 71 and trailing wheel 17 by output sleeve 40.When power travelled, the driven sprocket 14 of rear wheel-side became the inertia traveling state because of ratchet skids.When driving engine 25 stops, promptly being returned to the manpower motoring condition.

In above-mentioned directly linking on the engine installation of pattern with bicycle rear, the pedal of available bicycle starts.

Below, according to Fig. 1, Fig. 2, Fig. 6, Fig. 7 the 2nd embodiment of the present invention (hand starting formula) is described.

At describing with above-mentioned the 1st embodiment dissimilarity, the 100th, kick starter, the 101st, kick starter case, be installed on the gear case 31, in the inboard of this kick starter case 101, bolster 102 is integrally outstanding, and reel 103 is installed on this bolster 102 with freely rotating.

Hawser 104 is wound in the peripheral recess of reel 103, is provided with to unroll with plane scroll spring 105 between reel 103 and case 101, so that after pulling out hawser 104, when hand was decontroled by hawser 104, hawser can be accommodated in the recess of reel 103 once more.

On the reel side side of flywheel magnet 82, ratchet 106, utilize return spring 107 inwardly to push away the side with pivotal mounting, with reel 103 can in conjunction with or break away from.Flywheel shaft 81 dallies when reel 103 reversed turnings along with the just commentaries on classics of reel 103 is turned round together.

On the other hand, engine installation shown in Figure 6 is to remove jaw shaped clutch mechanism from the engine installation of Fig. 3, and output sleeve 40 and final gear IV35 are directly linked, and replaces mono-directional overrun clutch roller 61 but employing needle bearing 108.

Moreover shown in long and two-short dash line, hawser guidance 109 is extended upward by kick starter case 101 in Fig. 1, Fig. 2, is not bearing in flexibly on the vibrationproof member 110 with giving graphic carriage.The height of starting handle 111 should be arranged to, and holding its under the cyclist rides over state on the vehicle seat 112 can fire an engine 25.

Below, the situation of utilizing the hand starting mode to travel is described.

At first, make driving engine 25 startings with pulling moving starting handle 111, when rotating the rotating speed that does not give graphic throttle grip raising driving engine then, then centrifugal type automatic clutch 65 engages, power is by gear I32a, gear II33, gear III34a, gear IV735, according to the signal of ratchet 38, pass to rear wheel hub 71 and trailing wheel 17 by output sleeve 40 with internal tooth 40a.

Utilize M/C also can make engine starting as described above.Starting device in this case just increases the minority part and gets final product, and start-up function is also very easy.In addition, under the situation of using kick starter 100, engine installation also is compact, therefore, comprises that the total of driving engine also can become small-sized structure.

Below, the 3rd embodiment of the present invention is described.

Fig. 8 is the power generation assembly of present embodiment, is D-D cutaway view of Fig. 3.In addition, Fig. 9 is E-E cutaway view of Fig. 8.

This embodiment is provided with common igniting flywheel magnet 82 and igniting coil 83 simultaneously on the driving engine 25 that produces bicycle power, and power generation assembly 88 is installed, these power generation assembly 88 first-class branches dispose a plurality of magnet 85 and with the field winding 86 of these magnet 85 respective amount, above-mentioned a plurality of magnet 85 is that five equilibrium is configured on the circumference of flywheel magnet 82, with this power supply as the bicycle subsidiary machinery.

Flywheel magnet 82 is to be fixed on crank 27 and the flywheel shaft 81, and unshakable in one's determination 87 is to be fixed on the wheel hub 31a that is given prominence to by gear case 31.

As mentioned above,, can obtain the power supply of illuminating lamp and buzzer phone etc., not need to use other power supply owing to be formation with power generation assembly 88.

And, power generation assembly 88 is installed in the inboard of flywheel magnet 83 compactly, the oad of oad and the driving engine of no power generation assembly 88 of the driving engine 25 of band power generation assembly 88 is had no difference.

Figure 10 and Figure 11 represent the 4th embodiment of the present invention.

The characteristics of present embodiment are to be, on flywheel magnet 82, form muscle 89, and this muscle 89 is the wind circulations that are used to make (indoor) in the gear case 31 of accommodating power generation assembly 88.

Details as shown in figure 11, with the medial surface of the flywheel magnet 82 of power generation assembly 88 mutual subtends on form many muscle 89, its shape is to become radial extension by the axle center.

Adopt the structure of the flywheel magnet 82 of this belt transect muscle, when because the starting of driving engine 25, during flywheel magnet 82 revolutions, the air that is equipped with in the gear case 31 of power generation assembly 88 circulates accommodating the indoor of this power generation assembly 88.

Therefore, particularly in the inboard of flywheel magnet 82, when the outside by the lower flywheel magnet 82 of temperature, be cooled owing to be difficult for heat that heat-dissipation power generation assembly 88 self-heatings are produced.Certainly, because from the heat of the driving engine 25 of adjacency and overheated situation also can be controlled.

Therefore, can obtain the effect that prevents that power generation assembly 88 temperature from rising.

And, be the bubble-tight structure that can keep gear case 31, therefore, can be as the situation that is provided with to the breather port of outside atmosphere opening, dust enters gear case inside by the outside, needn't worry can bring obstacle to the rideability of bicycle.

In addition, such shown in the long and two-short dash line among Figure 10 and Figure 11, on the thickness of slab part of the flywheel magnet 82 folded by muscle 89, when forming the breather port 90 of the medial and lateral that connect flywheel magnet 82, then breather port 90 also is the part that air carries out circulation cycle, can prevent effectively further that the temperature of power generation assembly 88 from rising.

Moreover, can make breather port 90 according to necessity, its number can be set arbitrarily.

In addition, the structure of muscle is set on the medial surface of flywheel magnet 82, this effect that oad and the oad of the driving engine of no power generation assembly that also can obtain the driving engine of retainer belt power generation assembly has nothing different.

Certainly, the 3rd embodiment, the 4th embodiment can be applied to above-mentioned the 1st embodiment and the 2nd embodiment.

Figure 12-Figure 15 represents the 5th embodiment of the present invention.

Present embodiment is with existing constituent part among the 1st embodiment, it is the simple ventilating structure that the structure of manual claw clutch operating portion is intactly used, because the pressure in the gear case 31 changes, when long-time the use, can be from the oil packing portion leakage of oil of gear case 31, above-mentioned ventilating structure is exactly the structure that is used to prevent this leakage of oil.

At this, Figure 12 sees that from the inboard of gear case 31 there is the resulting block diagram of clutch operating portion (constituting the part of manual claw clutch) of ventilating structure inside, Figure 13 is the front section view of clutch operating portion shown in Figure 12, Figure 14 is the birds-eye view of above-mentioned clutch operating portion, and Figure 15 is the left view of above-mentioned clutch operating portion.

Utilize these figure to illustrate that there is the structure (manually claw clutch structure) of the clutch operating portion of ventilating structure inside; 31 is gears case among the figure; The 248th, an orienting sleeve (tubular), it is to be bearing on the gear case 31 and by the gear case surface with close fit to stretch out to foreign side; 248a is cam path (only shown in Figure 14), and it is to be obliquely installed on the sidewall of axle orienting sleeve 248; The 252nd, axle, it is to be undertaken airtight and be installed in freely in the orienting sleeve 248 with endwisely slipping in revolution by O shape circle 290a; 252a is a blind hole, and it is an end (orienting sleeve stretches out side) that is arranged on axle 252 along diametric(al); 252b is the neck that is arranged at the other end (orienting sleeve root side) of axle 252; 252c is the hole, and it is the axle center part that is formed at axle 252 between the blind hole 252a and the other end along the axis direction perforation in order to make, so that the inside of gear case 31 is communicated with blind hole 252a; The 249th, pin handle, its end is to insert loosely in the blind hole 252a by tongue wheel 248a, the other end forms fork-shaped, 249a is the semi-circular groove that is arranged at the fork-shaped portion of pin handle 249,249b is the outside thread (only illustrating on Figure 13) that is arranged on the axis direction middle part of pin handle 249, the 250th, the orienting sleeve protective cover of bottom tube-like is arranged, it is to be sleeved on the end of an orienting sleeve 248 from the outside loosely and at perisporium screw 250a (only illustrating at Figure 13) to be arranged; The 291st, spring, it pushes away pin handle 249 along clockwise direction in Figure 15; The 292nd, soft wire is used to make the semi-circular groove of terminal part 292a and pin handle 249 to interosculate and carries out stop; The 247th, an end is limited in freely rotating the lever on interior side's the end face of an orienting sleeve 248 with pin 293.Pin handle 249 is that the outside thread 249b with pars intermedia screws on the screw 250a that is fixed on orienting sleeve protective cover 250.

Lever 247 is to cooperate with the neck 252b of axle 252, when pulling soft wire 292 makes frame bar 249 rotate by anticlockwise direction shown in the arrow among Figure 15, then such shown in the long and two-short dash line among Figure 13, axle 252 moves to length direction right side (in Figure 13), and the position of lever 247 is moved to the β position by alpha position.Move by this, driving pawl cover 246 makes clutches engaged.Certainly, when soft wire 292 is return, because the elastic force of spring 291 is removed the engagement of power-transfer clutch.

From such structure, when the conduction heat that suffers from driving engine, temperature in the hermetic closed gear case 31 rises, when this gear case pressure inside raises, gear case in-to-in air with the gap of the gap of the gap of the hole 252c of axle 252, pin handle 249 and blind hole 252a, pin handle 249 and cam path 248a and axle orienting sleeve 248 and orienting sleeve protective cover 250 as passage, as Figure 12 and arrow J, H shown in Figure 13, discharge in outside atmosphere by above-mentioned passage, make outside atmosphere and gear case pressure inside balance.

In addition, on the contrary when cooling (temperature declines) in the gear case 31, when the gear case pressure inside is negative pressure, air flows on the contrary, the gear case pressure inside is understood the equilibrium of pressure with outside atmosphere equally.

So, become ventilating structure.

In other words, air is by the narrow passage between the part of running-fit, therefore, become a blowing air and can prevent the lucky ventilating structure of the inflow and the outflow of rainwater and lubricating oil, the close clearance that is running-fit portion be as lubricating oil oil-trap (trap) in action, can prevent spilling of oil, can prevent that rainwater from immersing from the outside simultaneously.

So, the clutch operating portion that uses existing constituent part to dress up, with running-fit portion as passage, can be intactly in order to as ventilating structure, and, as ventilating structure, only need carry out hole processing, not need to increase part, therefore, can make it very at a low price, ventilating structure can be arranged in the gear case.

Below, according to Figure 16-Figure 21 the 6th embodiment is described.

Figure 16 is a lateral plan of using the bicycle of band primary mover of the present invention, and Figure 17 is the horizontal cross at the rear portion of this bicycle, and 301 is vehicle bodies among the figure.

Vehicle body 301 is to be made of tectosome, and this tectosome is to be combined by for example following each pipe: the seat pipe 302 that extends along the vertical direction; The a pair of lower oblique tube 303a, the 303b that extend obliquely upward by this pipe lower end; The head pipe 304 that supports along the vertical direction in the upper end of each lower oblique tube 303a, 303b.

Manage 304 upper supports at head and revolution breeches pipe 305 freely.Fork body 307 is set in the bottom of this breeches pipe 305, and front-wheel 306 is bearing in the front end of above-mentioned fork body 307 with freely rotating with axle.In addition, bogie car is set 308, so that front-wheel 306 is turned in the upper end of breeches pipe 305.

The upper end of present pipe 302 is provided with vehicle seat 309, so that the cyclist takes.

In addition, the bond sites of the bottom of present pipe 302 and the lower oblique tube 303b of downside is provided with and links stay tube 310, rear side at this connection stay tube 310 is supporting the pair of rear wheels fork 312,312 that rearward extends by hinge axis 311, can freely rotate at above-below direction.Moreover these two rear wheel fork 312,312 all are to make with the tubing with oval-shaped profile, and the above-below direction of this oval-shaped profile is a major axis, and left and right directions is a minor axis.

These two rear wheel fork 312,312 are configured to, and along with the distance of rearward extending between the two enlarges gradually, hind axle 313 is bearing between the terminal part of above-mentioned two rear wheel fork.Trailing wheel 314 is bearing on this hind axle 313 with freely rotating.Moreover, in the wheel hub 314a of above-mentioned trailing wheel 314 and the rear wheel fork of a side, for example and between the rear wheel fork on right side (in the face of the right side in travel direction the place ahead) supporting driven sprocket 315 with freely rotating, this driven sprocket 315 is to be used for to trailing wheel 314 transferring power, at the inner circular part of this driven sprocket 315 the rotating ratchet (not giving diagram) that can only transmit working direction is housed.

Axis 317 is bearing in freely rotating and links in the stay tube 310, is linking a pair of crank 316,316 at the two ends of axis 317.A side and driven sprocket 315 at axis 317 are being fixed drive sprocket 318 accordingly.

Between this drive sprocket 318 and driven sprocket 315, setting up chain 319, step the pedal 320 that is arranged on each crank 316,316 end with manpower and make axis 317 revolutions, whereby, by the manpower that takes place, by drive sprocket 318, chain 319, driven sprocket 315, drive trailing wheel 314 and turn round.

Moreover, the 321st, be configured in the baggage rack at vehicle seat 309 rears, link with seat pipe 302, the 322nd, support the strut of this baggage rack 321, come by 302 extensions of seat pipe.

On the other hand, on opposite with the driven sprocket 315 of wheel hub 314a one side-prominent position, engine installation 323 is set at hind axle 313.Structure such as Figure 18 and shown in Figure 19 around this engine installation 323.

Below this cage structure is described, engine installation 323 be primary mover for example 2 cycle engines 324 be combined into one with the reductor 325 that becomes Poewr transmission mechanism, constitute 1 parts.

In other words, if when engine installation 323 is elaborated, reductor 325 has the vertical gear case 326 that becomes the flat-disk of chest portion shape, and the tubular output shaft 327 that is bearing in freely rotating on this gear case 326 is given prominence to by the rear of leaning on of the right side (sidepiece) of this gear case 326.

In addition, promptly has input shaft (not giving diagram) in the left side (the other side) of gear case 326 with the forward position of output shaft 327 opposite sides.

In gear case 326,, constitute reduction train in order to comprise the gear type speed reduction gearing 328 that centrifugal self-acting clutch is formed with coupling together between input shaft and the output shaft 327, containing.In addition, between the efferent of output shaft 327 and connected gear reduction 328, interrupted gear 335 is set, is used between the two transmission of power being cut off or continuously with M/C.Moreover, rotation control lever 335a freely is set in the right side of gear case 326, be used to carry out the intermittent operation of above-mentioned interrupted gear 335.

In the left side of gear case 326, make crank (not giving diagram) and input shaft direct-connected, the crankcase 324a of 2 cycle engines 324 is attached on the horizontal direction of front and back.

Therefore, whole 2 cycle engines are installed on the gear case 326 become one.

In addition, the cylinder line 324b of 2 cycle engines 324 is provided with the air system 331 be made up of carburettor 329 and airfilter 330, exhaust muffler 332, light-up plug 333 etc.The 334th, protective cover is used for covering and is exposed to exterior carburettor 329; The 336th, be arranged at the kick starter of crankcase end.

Output shaft 327 be intercalation with freely rotating on the periphery of hind axle 313, therefore, become the rear portion of gear case 326 at engine installation 323 rear portions of such formation, for hind axle 313, be to support with freely rotating.

Utilize this supporting, engine installation 323 is configured in outside the revolution range of pedal 320, and as far as possible near trailing wheel 314.

The end side of this output shaft 327 be intercalation in the wheel hub 314a and driven sprocket 315 of trailing wheel 314, will pass to trailing wheel 314 by the propulsive effort (revolution) of 2 cycle engines 324 output.

In addition, the width of cloth bar 314b (big material constitutes with rigidity) that constitutes trailing wheel 314 becomes funnel-form to be given prominence to the right, utilize the shape of this width of cloth bar 314b to make in the middle of the position of engine installation 323 relies on, will be configured in to the base portion branch of 2 outstanding cycle engines 324 of vehicle body 301 left sides the trailing wheel fork under.

In addition, the position of forwards being left by the hind axle 313 of this engine installation 323 is to utilize bearing set 337 to be bearing on the right side rear wheel fork 312 as bodywork parts.The structure of this bearing set 337 such as Figure 20 and shown in Figure 21.

The following describes the structure of bearing set 337, the 338th, support tube (formation cramp bar), it is to make with the hollow tube of the circle of for example section with specified length.In an end of this support tube 338 adapter plate 339 (for example fixing by welding) is housed, is used to support engine installation 323.

Adapter plate 339 is to constitute with the metal sheet bending forming, make plate face and carriage 340, carriage 341 (all being fixed part) overlapping, this carriage 340 for example sets in advance the top at the crankcase 324a that is forwards left by hind axle 313, and has a screw of opening (not giving diagram) to the left, above-mentioned carriage 341 is arranged on the said gear case 326, and has the screw of opening upward.With each carriage 340,341 on the overlapping seat portion of screw through hole 342 is set respectively.

Adapter plate 339 is to utilize in the screw that screw 343 screws on each carriage 340,341 by each through hole 342 and be fixed on crankcase 324a and the gear case 326.Fix by this, the other end of support tube 338 is configured to extend to the place ahead of vehicle body 301 along the rear wheel fork 312 in left side.

In addition, suit and be fixed with the prismatic vibration-proof rubber body made from vibration-proof rubber 344 on the periphery of these support tube 338 the other end.

In other words, on vibration-proof rubber body 344, make the hole that extends through the other end from an end face, this borehole jack is contained on the pipe end.Moreover this hole is to be formed on coaxial by 344a of hole portion and the 344b of hole portion of diameter less than the 344a of this hole portion, and support tube 338 is in the 344a of embedded hole portion.

And the other end of support tube 338 is accessory 345 (being equivalent to mounting appliance) utilize to be installed clip this vibration-proof rubber body 344 and be fixed on the position of close hinge axis of left side rear wheel fork 312, engine installation 323 is held in the posture of regulation.

Details is to have adopted following structure in this maintenance.

In other words, install accessory 345 be mounted in rear wheel fork 312 on interior side's face, by constituting to the outstanding adapter plate 345a in the top of this rear wheel fork 312 and with the check plate 345b of this adapter plate 345a combination.

Adapter plate 345a is made by band plate, with the axis parallel of rear wheel fork 312 and outstanding upward plate face portion on, form groove shape portion 346 (formation supports), make the outside of its recessed side towards vehicle body 301.This groove shape portion 346 has and the corresponding size of the profile of vibration-proof rubber body 344, and vibration-proof rubber body 344 is to embed in this groove shape portion 346.

In addition, in the upper end of adapter plate 345a, be provided with the through hole 347 and nut 348 of processing on this board, this nut 348 is installed on the plate face portion of above-mentioned vehicle body 301 inboards overlappingly with this through hole 347.

Check plate 345b is made of band plate, with the profile corresponding groove shape portion 349 (formation support) of this band plate formation with vibration-proof rubber body 344.This check plate 345b is on the profile part that is embedded in by the outstanding remaining vibration-proof rubber body 344 of groove shape portion 346, with the groove shape portion 346 of adapter plate 345a surround vibration-proof rubber body 344 around.

Bottom at check plate 345b forms hook portion 350, this hook portion 350 is that the lower end with check plate 345b bends to the font of falling L laterally and forms, in the upper end of check plate 345b and the position of through hole 347 screw thread via hole 351 is set accordingly, hook portion 350 is inserted and is stopped in the supporting parts 352 of flute profile, this part be install (for example fixing) with welding rear wheel fork 312 on the surface of foreign side, screw 353 is passed through hole 347 from screw thread via hole 351 to screw in the nut 348, whereby, with two groove shape portion 346,349 clampings and fixing vibration-proof rubber body 344.

Moreover, on another distolateral side of support tube of each groove shape portion 346,349, form banded hook portion 354 respectively, this hook portion 354 is shown in the long and two-short dash line among Figure 19 and Figure 20, with by the outstanding end face of each groove shape portion 346,349 be vibration-proof rubber body 344 hole portion 344b place end face vis-a-vis, cover vibration-proof rubber body 344 with these two hook portions 354,354 and misplace preventing by the outstanding part 344c of groove shape portion 346,349.That is to say and use fixedly vibration-proof rubber body 344 of hook portion 354,354.

Fixing by the supporting pipe end that carries out with such adapter plate 345a, check plate 345b, it is forwards horizontal attitudes that engine installation 323 is mounted to 2 cycle engines 324.

Utilization is disposed in order to control engine installation 323 necessary control ropes from the support tube 338 that this engine installation 323 extends to the place ahead of vehicle body 301.

Specifically, be that lighting a lamp of rearward being extended by the front portion of vehicle body 301 used the control of engine installation 323 of the lead 355 used with buzzer phone and throttle gate steel wire rope, strangler valve steel wire rope, starter steel wire rope, intermittent operation steel wire rope or the like with rope 356) distribution of driving engine equipment usefulness, pipe arrangement etc.) pass in the support tube 338.And, will be connected each one of engine installation 323 by the control that the orifice end of support tube 338 is drawn with rope 356.Specifically, throttle gate steel wire rope, strangler valve steel wire rope, starter steel wire rope are to be connected on carburettor 329 and the in-engine starter (not giving diagram), and the intermittent operation steel wire rope is to be connected on the control lever 335a.

Moreover trailing wheel 314 is to be hung by the suspension gear 357 that is attached between support 358 and the support 359, and support 358 is mounted on baggage rack 321 and the strut 322, and support 359 is arranged on the gear case 326.

So, using above-mentioned bearing set 337, with being bearing in engine installation 323 on the hind axle 313 with freely rotating when being held in the attitude of regulation, at first, be fixed on the adapter plate 339 that is positioned at support tube 338 1 ends on the engine installation 323.

At this is to be undertaken by following program, each one of adapter plate 339 is overlapped on the carriage 340,341 that is positioned on crankcase 324a and the gear case 326, each hole site is aligned, then, respectively screw 343 each through hole 342,342 by adapter plate 339 is screwed in facing to screw, support tube 338 is fixed into the cantilever beam shape.

After fixedly finishing, vibration-proof rubber body 344 as prescribeies are inlaid in the other end of support tube 338.

With accessory 345 be installed this vibration-proof rubber body 344 be fixed on rear wheel fork 312 on thereafter.

At this, at first vibration-proof rubber body 344 is embedded in the groove shape portion 346 of the adapter plate 345a on the rear wheel fork 312.

Then, after being inserted in the hook portion 350 of check plate 345b in the supporting parts 352 on the rear wheel fork 312, the groove shape portion 349 of above-mentioned check plate 345b is embedded in by on the outstanding remaining vibration-proof rubber body portion of groove shape portion 346, and the upper end that makes the upper end of check plate 345b and adapter plate 345a vis-a-vis.

Screw 353 nut 348 by the screw thread via hole 351 secured in alignment plate 345as upper end of check plate 345b upper end screwed in thereafter.

Therefore, vibration-proof rubber body 344 is fixing by the clamping realization that each groove shape portion 346,349 carries out.

In other words, with the bottom stop of adapter plate 345a and check plate 345b, the top of this two part is fixed with 1 screw 353, by such operation, vibration-proof rubber body 344 is surrounded and is gripped by adapter plate 345a, check plate 345b.

By so fixing, the other end of support tube 338 is fixed on the hinge side of rear wheel fork 312, engine installation 323 is fixed into the attitude of regulation.

Take the supporting construction of such engine installation 323, the drive torque of 2 cycle engines 324 is passed to trailing wheel 314 when travelling, be that power is when travelling, because the counteraction of the drive torque of 2 cycle engines 324, engine installation 323 is a fulcrum with hind axle 313, the power that will rotate to the direction opposite with trailing wheel 314 is because the position of hind axle 313 is stoped with this counter-force of 2 formation resisting moment of the leading section of support tube 338 (position of installation accessory 345).

At this moment because support tube 338 forwards extends, the hind axle 313 that rear side is left in the other end enough far, counter-force is less, the unplessantness displeasure when bearing counter-force is less.

In addition, because the change of drive torque and the vibration that out-of-balance force produced of 2 cycle engines 324, it mainly is the front end that acts on above-mentioned support tube 338, but the front end of this support tube 338 is to support by the rear wheel fork 312 of vibration-proof rubber body 344 by vehicle body 301, therefore, this vibration is absorbed by the elasticity of the rigidity of support tube 338 and vibration-proof rubber body 344 and obtains relaxing.Moreover the absorption mitigation of this vibration mainly is the elasticity by means of vibration-proof rubber body 344.

Therefore, the transfer of vibration after absorption relaxes is on rear wheel fork 312, and the vibration that is delivered on the vehicle body 301 from engine installation 323 is reduced.

Therefore, can exempt the unplessantness displeasure that the vibration from engine installation 323 causes.And vibration-proof rubber body 344 forms support, and this support is for the displacement of any direction of support tube 338 permissions, and therefore, the modulus of elasticity of selected vibration-proof rubber body 344 can cut off high-frequency especially vibration aptly.This can be described as the supporting construction that uses vibration-proof rubber body 344 is actv. for cutting off high-frequency vibration, can the broad vibrationproof characteristic of acquisition amplitude.

And, be that the end with support tube 338 is attached on the engine installation 323, the other end is attached at supporting structure on the bodywork parts by vibration-proof rubber body 344, therefore, the bicycle structure for different also is easy to adapt to.Certainly, textural also be simple.

In addition, owing to adopt support tube 338 (hollow tube), the effect of being received is to support engine installation 323 with supporting construction light and with low cost.

And, support tube 338 is to be extended to the front side of vehicle body 301 by the engine installation 323 that is installed on the hind axle 313, utilizing this supporting pipe end in addition is the layout that is positioned at the front side of 2 cycle engines 324, the control of the engine installation 323 of the throttle gate steel wire rope that will be configured to the engine installation 323 at rear portion by the front portion of vehicle body 301, strangler valve steel wire rope or the like is passed in this support tube 338 with rope 356 to be configured, therefore, can carry out the configuration of various controls by the unnecessary outer open country of control, can carry out the good configuration of outward appearance with rope 356.In addition, thisly make control pass structure in the support tube 338, do not need other with the loaded down with trivial details operation of steel wire rope outward appearance ligation well on vehicle body 301, therefore with rope 356, configuration operation correspondingly becomes easily, and can reduce the installation work-hour of the bicycle of band primary mover.

Below, according to Figure 22-embodiment shown in Figure 26 the 7th embodiment is described.

Figure 22 is the engine installation block diagram on every side of the bicycle of expression application band primary mover of the present invention, and Figure 23 is the front elevation that expression is seen by arrow A direction among Figure 22.

In above-mentioned figure, 461a is the air-cooled engine of travelling, for example with air-cooled 2 cycle engines of travelling of kick starter, the 461st, constitute the cylinder of this air-cooled 2 cycle engine 461a that travel, 462 are arranged on the starting box of this driving engine 461a sidepiece, 461b is the kick starter that is configured in the driving engine sidepiece, it is by above-mentioned starting box 462 supportings, the 463rd, constitute the kick starter case of above-mentioned kick starter 461b, the 464th, become the engine protection cover of main portion of the present invention, the 465th, to the carburettor (subsidiary engine class) of above-mentioned driving engine supply mixture gas, it is to be connected with the air-cooled 2 cycle engine 461a that travel, 466a is the airfilter that is connected on the above-mentioned carburettor 465, the 466th, constitute the air filter case of this airfilter 466a, the 468th, be contained in the noise silencer on the air-cooled 2 cycle engine 461a that travel.Moreover, the 472nd, the handle of kick starter 461b.

Wait each machine to constitute engine parts 460 thus.In addition, at topmost air suctiton inlet 466b is set towards the side of the airfilter 466 of carburettor 465 sides.

On the other hand, 469 is the forked back vents that constitute frame among the figure, the 470th, and the forked rear pole of formation frame.

Engine parts 460 are to be bearing in freely rotating on the hind axle (not giving diagram), and this hind axle is to be fixed on the position that above-mentioned back vent 469 and rear pole 470 intersect.Moreover the structure of above-mentioned engine parts 460 is, has variable-speed motor 467, by the revolution by 2 cycle engine 461a of the deceleration of these variable-speed motor 467 outputs, can turn round driving to the rear wheel (not giving diagram) that is bearing in freely rotating on the hind axle.

In addition, the case portion of the vehicle body that leaves hind axle (bicycle) front side of engine parts 460 is fixed on the back vent 469 by supporting accessory 471, so that the counter-force of whole engine parts during not because of engine drive rear wheel (not giving diagram) rotated.

By such installation constitution, be to make cylinder 461 levels of the air-cooled 2 cycle engine 461a that travel and be installed on the car body of bicycle towards travel direction (the place ahead).And, according to the order of carburettor 465 and airfilter 466a they are arranged in series in the rear of above-mentioned driving engine 461a, with noise silencer 468 towards being configured in the downside of carburettor 465 and airfilter 466a with the opposite direction (rear) of travelling.Moreover airfilter 466a is fixed on the carburettor 465 with screw 475.

Figure 22 represents that above-mentioned engine parts 460 are installed in the state in the bicycle shaft.

Engine protection cover 464 is to be installed between the kick starter case 463 and air filter case 466 that constitutes such engine parts 460.

The structure of this engine protection cover 464 such as Figure 24-shown in Figure 26.Represent respectively that promptly Figure 24 sees the left view that engine protection cover 464 obtains by the B direction of Figure 23, Figure 25 is the C-C section-drawing of the engine protection cover 464 among Figure 23, and Figure 26 sees the right elevation that engine protection cover 464 obtains by the D direction among Figure 23.

The following describes the structure of above-mentioned engine protection cover 464, engine protection cover 464 is to make with resins such as polypropylene, as Figure 24 and shown in Figure 26, its section roughly is flute profile, be installed between kick starter case 463 and the air filter case 466, cover carburettor 465 up and down with 3 aspects, side.

In addition, the profile of engine protection cover 464 is to form with kick starter case 463 and the streamline contour that air filter case 466 is continuous continuously, shows higher aesthetic property.

Engine protection cover 464 is to be installed on variable-speed motor 467 and the kick starter case 463 with screw 473,474 respectively.

Moreover, in the lower inside of the airfilter side of engine protection cover 464 mortise 464d is set, this mortise 464d be arranged on projection (not giving diagram) on the airfilter 466a can insert or take off chimeric, to carry out the location of engine protection cover 464.

On the sidewall of the covering carburettor 465 of engine protection cover 464, as shown in figure 25, many air extractor vent 464a that slenderly extend along fore-and-aft direction form ladder at above-below direction, and air can be by the inside and outside circulation of air extractor vent 464a at protective cover.

In addition, in the rear end of engine protection cover 464 and the top of airfilter 466 bonded assembly profile portion the 464b of eaves portion is set.The 464b of this eaves portion is that the part of width that makes the air suctiton inlet 466b that is equivalent to airfilter 466 among the top of above-mentioned engine protection cover 464 is more outstanding and form than other parts, so that cover on the air filter case 466, utilize the 464b of this eaves portion to hide gap between the connecting portion of engine protection cover 464 and airfilter 466a, so that in the air suctiton inlet 466b of inhibition water by this connecting portion invading air fil 466a.

Moreover, on the lower position of the carburettor 465 of engine protection cover 464,, cleading 464c is set as Figure 24 and shown in Figure 26, be the outstanding to the inside cantilever beam shape that becomes of side wall inner surface by engine protection cover 464.

This heat insulation 464c is used to block between the bottom and noise silencer 468 of carburettor 465, is on the gamut that is clipped between them, to cut off the radiant heat of noise silencer 468 for carburettor 465.Promptly cut off the heat affecting of noise silencer 468, so that among the heating of noise silencer 468, protect carburettor 465 for carburettor 464 with cleading 464c.

In addition, the arrow E among Figure 23 is illustrated in the air flow at the air suctiton inlet 466b place of airfilter 466.

So, so be installed in the engine parts 460 on the bicycle back axle, its engine protection cover 464 will couple together between kick starter case 463 and the air filter case 466, partially enclosed with what open wide, between kick starter case 463 and air filter case 466, can not see carburettor 465.

And the engine protection cover self has kick starter case 463 and air filter case 466 bonded assembly profile continuously, seems that therefore kick starter case 463, engine protection cover 464 have incorporate outward appearance with air filter case 466.

Therefore, can improve the overall outward appearance of engine parts that adopts the air-cooled engine of travelling.

And engine protection cover 464 will be subject to the covering with side 3 sides up and down of carburettor 465 of external action, and therefore, can prevent to splash on carburettor 465 mud and landing rainwater can prevent to take place to become rusty for 2 times on carburettor 465.

Add the inside and outside air of protective cover and circulate, can prevent that therefore the temperature of engine protection cover inboard (protective cover inside) from rising, can eliminate the stagnation of protective cover in-to-in heat by the air extractor vent 464a on the engine protection cover 464.

In addition, the part that is equivalent to the air suctiton inlet 466b of airfilter 466a among the connecting portion of the 464b of eaves portion that utilizes engine protection cover 464 with the rear end of engine protection cover 464 and airfilter 466a is covered, and therefore can prevent in the rear end and the air suctiton inlet 466b of the gap immersion airfilter 466a of the connecting portion of airfilter 466a of sealing by engine protection cover 464.Thereby can prevent from unnecessarily to increase the inspiratory resistance of airfilter 466.And, identical with the situation of fwd carburettor 465, can prevent that airfilter 466a from 2 times rust taking place.

Moreover, cleading 464c is arranged on the engine protection cover 464, in order to cut off the radiant heat of noise silencer 468 for carburettor 465, therefore can cut off the heat affecting of noise silencer 468 for carburettor 465, the useless temperature that suppresses carburettor 465 rises, and can also obtain the effect that makes engine performance stable.

In addition, air-cooled 2 cycle engines of travelling that are to use the band kick starter in one embodiment are as travelling the wind driving engine, but are not limited in this, also can use other air-cooled engines of travelling air-cooled 4 cycle engines that for example travel.

Below, be arranged at the exhaust muffler of the 8th embodiment on 2 cycle engines 521 as object of the present invention referring to Figure 27-Figure 29 explanation.

As shown in figure 27, exhausr port 524 is set, is used for waste gas is discharged to the outside in for example bottom of the cylinder portion 523 of 2 cycle engines 521.The exhaust muffler 531 of embodiments of the invention is to be connected on the exhausr port 524 of above-mentioned cylinder portion 523.

The exhaust muffler 531 of present embodiment has: freeing pipe 532; Be connected the muffler body 533 that forms the greasy filth conveying end on the above-mentioned freeing pipe 532 simultaneously; Can be arranged on the lid 534 on the greasy filth conveying end of above-mentioned muffler body 533 with loading and unloading; Be arranged at the inside of muffler body 533, the inside of dividing this muffler body 533 is to form for example 2 dividing plates 535,536 of most expansion chambers; Be arranged at the inside of muffler body 533,, be arranged in the muffler body 533 trail pipe 539 that is communicated with the expansion chamber of waste gas flow path direction downstream end as the path pipe 537 of the path that is communicated with most expansion chambers and the via hole 538 of dividing plate 536.

One end of freeing pipe 532 contacts with the exhausr port 524 of the cylinder 523 of 2 cycle engines 521, and flange 540 usefulness that form on the end with this freeing pipe 532 are not given graphic bolt and are installed in the cylinder portion 523.Whereby, freeing pipe 532 is connected on the exhausr port 524.As described later, freeing pipe 532 is to insert muffler body 533 in-to-ins, forms most exhaust ejiction openings 541 on the perisporium of the part in inserting this muffler body 533 dispersedly.

Muffler body 533 is to have than the big sectional area of freeing pipe 532 and is the tank body with smooth section that an end face of this muffler body 533 (with the axis normal of muffler body 533) opens wide, and covers 542 chimeric and be fixed on this opened portion 554.On this lid 542, make intubate through hole 543, so that freeing pipe 532 is inserted.Noise silencer 533 is to make its smooth section become on even keel to be configured.

In addition, go up formation greasy filth conveying end 544 in the other end of muffler body 533 (with the axis normal of muffler body 532), cover these greasy filth conveying ends 544 with covering 534, this lid 534 can be installed on the muffler body 533 with loading and unloading.Greasy filth conveying end 544 is to be used for being fetched into the outside with being trapped in muffler body 533 in-to-in greasy filth, and lid 534 is for example to utilize that following structures is installed on the muffler body 533.

In other words, as Figure 27 and shown in Figure 28, in the centre of greasy filth conveying end 544, dispose lid accessory 546 is installed, this lid installation accessory 546 is for example to use method such as spot welding to be fixed on the muffler body 533.On lid installation accessory 546, make screw 547.Lid 534 has identical size and identical shape with greasy filth conveying end 544, and periphery 534a is erected.Through hole 548 is made in centre at lid 534.Moreover, make intubate through hole 549 at the peripheral part of lid 534, be used to make trail pipe 539 break-through to go over.And lid 534 is to be configured on the greasy filth conveying end 544 by pad 545, and periphery 534a is entrenched on the periphery of greasy filth conveying end 544.Hold-down bolt 550 is to pass through hole 548 and the inside of insertion muffler body 533 by the outside of lid 534, screws in lid again and installs in the screw 547 of accessory 546.Therefore, lid 534 is to utilize bolt 550 lockings when covering greasy filth conveying end 544, can be installed on the muffler body 533 with loading and unloading.

2 dividing plate 535,536 sections with muffler body 533 are of similar shape and size, are vertically to have the compartment of terrain configuration and be fixed in the muffler body 533 along it in the inside of muffler body 533.Therefore, the inside of muffler body 533 is divided into 3 expansion chambers 551,552,553 by 2 dividing plates 535,536.In other words, as Figure 27 and shown in Figure 28, between the lid 542 and dividing plate 535 of the opened portion 554 of an end that covers muffler body 533, the first order expansion chamber 551 of formation air flow line upstream extremity; Between dividing plate 535 and dividing plate 536, form the third stage expansion chamber 553 of air flow line downstream end; At dividing plate 536 and cover between the lid 534 of greasy filth conveying end 544 of muffler body 533 and form second stage expansion chamber 552.

Above-mentioned freeing pipe 532 passes the inside of covering 542 intubate through hole 543 and inserting the first order expansion chamber 551 of noise silencer 533, and the aperture of the other end of freeing pipe 532 contacts and seals with dividing plate 535.Moreover, along the wall portion around the muffler body 533 sound absorber materials and parts 555 are set in the inside of first order expansion chamber 551, with pressing plate 556 it is pushed down.

Path pipe 537 is along being configured in the second stage expansion chamber 552 with axially passing through, being supported by formed hole 558 on formed hole 557 and the dividing plate 536 on the dividing plate 535.Therefore, first order expansion chamber 551 is communicated with by path pipe 537 with second stage expansion chamber 552.In addition, via hole 538 is formed on the dividing plate 536, and second stage expansion chamber 552 is communicated with by this via hole 538 with third stage expansion chamber 553.Via hole 538 is that the aperture by majority constitutes.

Trail pipe 539 is being configured in the second stage expansion chamber 552 along muffler body 533 with axially passing through, one side's end is passed on the dividing plate 536 in the formed intubate through hole 559, the diameter of this intubate through hole 559 is bigger than the diameter of trail pipe 539, and the opposing party's end is passed and covered the outside that formed intubate through hole 549 on 534 protrudes in muffler body 533.The opposing party end of trail pipe 539 is to utilize method such as welding to be fixed on to cover on 534, and as also showing among Figure 29, a side end is to withdraw from or insert in the intubate through hole 559 that passes dividing plate 536 freely.

At this, the greasy filth conveying end 544 of muffler body 533 is directly to open wide in the face of second utmost point expansion chamber 552, and the lid 534 that covers greasy filth conveying end 544 covers second utmost point expansion chamber 552, simultaneously, when greasy filth conveying end 544 unloads, second stage expansion chamber 552 is opened wide.

In addition, in the bottom of dividing plate 536 along the axial formation recess 560 of muffler body 533.This recess 560 forms path 561 with the wall portion of muffler body 533, and this path 561 is in order to interconnect third stage expansion chamber 553 and second stage expansion chamber 552.

The following describes the work of the exhaust muffler of formation like this.

Waste gas by the exhausr port 524 of the cylinder portion 523 of 2 cycle engines 521 is discharged is ejected in the inside formed waste gas flow path direction first order expansion chamber 551 of muffler body 533 by ejiction opening 541 by freeing pipe 532, expands.Waste gas flows to the inside of the second stage expansion chamber 552 in downstream by path pipe 537 then, expands again.

Then, waste gas is flow in the 3rd expansion chamber 553 of downstream end by formed via hole 538 on the dividing plate 536 by second stage expansion chamber 552, expands.At last, waste gas is discharged to the outside of muffler body 533 by trail pipe 539 by the 3rd expansion chamber 553.In this course, because the buffering of the complications of waste gas stream, the pressure wave when gas expands etc., exhaust sound reduces.

The employed lubricating oil of the cylinder lubrication of 2 cycle engines is supplied with common fuel mix, owing to the high temperature that is subjected to burn and causes in cylinder interior, is comprising the greasy filth of the generation because the branch of lubricating oil depolymerizes of volume in the exhaust of 2 cycle engines.

After waste gas was discharged in just by cylinder, during waste gas was hi-heat, above-mentioned greasy filth gasify, still, when waste gas reaches via freeing pipe 532 in the expansion chamber of muffler body 533, during the exhaust gas temperature reduction, then became mucus shape or rubber-like greasy filth.This greasy filth adhesive retention is on positions such as the inwall of each expansion chamber or exhaust channel.Therefore, the exhaust channel stenosis in the muffler body 533 is narrow, and resistance of exhaust increases, thereby the output of driving engine reduces.

In this embodiment, the greasy filth adhesive retention is in the inside of second stage expansion chamber 552, promptly on the surface of the wall of muffler body 533 and dividing plate 535,536.Adhesive retention is on path pipe 537 and trail pipe 539 in addition.

Therefore, in this embodiment, bolt 550 is unclamped, extract out in the screw 547 by lid installation accessory 546, the lid 534 greasy filth conveying ends 544 by muffler body 533 can be unloaded.At this moment, trail pipe 539 is to be fixed on to cover on 534, and it is gapped in the intubate through hole 559 of dividing plate 536, can insert to withdraw from freely and pass, therefore, can with lid 534 become one from the inside of second stage expansion chamber 552 and greasy filth conveying end 544 by being extracted to the outside of muffler body 533.So second stage expansion chamber 552 opens wide with greasy filth conveying end 544.

Then, operator's serviceable tool is fetched at second stage expansion chamber 552 in-to-in greasy filth adhesive retention the outside of muffler body 533 by greasy filth conveying end 544.

In addition, in the present embodiment, will cover 534 when unloading, trail pipe 539 promptly is drawn out of integratedly, and the intubate through hole 559 of dividing plate 536 is opened wide.Therefore, can observe greasy filth in the third stage expansion chamber 553 that will be trapped in second stage expansion chamber 552 the insides, utilize intubate through hole 559 on the dividing plate 536 easily to be fetched into the outside of muffler body 533 from greasy filth conveying end 544 by greasy filth conveying end 544.

In addition, in this embodiment, third stage expansion chamber 553 and second stage expansion chamber 552 are interconnected and form path 561 by the recess 560 that is formed at dividing plate 536 bottoms.Therefore, the greasy filth that is trapped in the third stage expansion chamber 553 is flowed out in second expansion chamber 552 by path 561.Flow out to expansion chamber 552 interior greasy filth in the second stage can easily be fetched into muffler body 533 by greasy filth conveying end 544 outside.

Like this, in the present invention, be on a position of muffler body 533, to form greasy filth conveying end 544.This greasy filth conveying end 544 is to cover with covering 534, and this lid 534 is to be installed on the greasy filth conveying end 544 with loading and unloading.Therefore, to unload on lid 534 the greasy filth conveying ends 544 by muffler body 533, greasy filth conveying end 544 is opened, can will be trapped in greasy filth on muffler body 533 inner portion faced of greasy filth conveying end 544, be fetched into the outside of muffler body 533 by conveying end 544.Thereby the greasy filth that will be trapped in easily and at short notice on muffler body 533 inner portion that greasy filth conveying end 544 faced is removed, and can improve the operability of operating from muffler body 533 inner removal greasy filth.

Moreover the present invention is not limited only to the above embodiments, can implement with the many variations form.For example also can not run through trail pipe 539 to be fixedly installed on and cover on 534, but run through in the wall portion that is fixedly installed on muffler body 533.

Below, according to Figure 30-Figure 32 the 9th embodiment is described.

Figure 30 is installed in the left figure that the state on the trailing wheel axial region of bicycle is represented with using engine parts of the present invention with these engine parts, and Figure 31 is a birds-eye view of being seen the main portion that Figure 30 obtains by the top.

According to the structure of the bicycle of above-mentioned description of drawings band primary mover, 601a represents the vehicle body of bicycle among the figure.

This vehicle body 601a has: connector pipe (not giving diagram) and crank boss 602a lower oblique tube 601; The seat pipe 602 of vehicle seat (not giving diagram) is equipped with on the top; Rearward extend into forked back vent 603 by crank boss 602a; Be fixed on the stay bearing plate 603a of back vent 603 ends; The forked back brace 604 of the end of the top of Connection Block pipe 602 and back vent 603.

In addition, in crank boss 602a, pedal crank 605 is set with freely rotating, its end is equipped with pedal 606, and sprocket wheel 607 is set on pedal crank 605 again, and it and this pedal crank 605 turn round with being combined into one.

Between stay bearing plate 603a, 603a, fixing hind axle 609.Trailing wheel 608 is installed on this hind axle 609 with freely rotating, on this trailing wheel 608, is fixing free gear 610 accordingly with sprocket wheel 607 again.

Between sprocket wheel 607 and free gear 610, setting up chain 611, during from pedal 606 input manpowers, promptly trailing wheel 608 is turned round driving.

Side at this bicycle rear shaft 609 is installed with engine parts 620.

In other words, engine parts 620 are following formations: engine main body 621 and reductor 622 are contained in the casing 620a of one, dispose carburettor 623 and airfilter 624 at the rear of engine main body 621 successively, dispose noise silencer 625 with the downside of airfilter 624 at these driving engines 621, carburettor 623.Moreover 626 expressions are arranged at the kick starter that the engine starting of engine main body 621 sidepieces is used.

Among engine parts 620, the case portion of reductor 622 installs with freely rotating and is supported on the hind axle 609.In addition, the case portion of forwards being left by hind axle 609 utilizes on supporting accessory (show and give diagram) is fixed in the way of back vent 603 partly.

Utilize this supporting, when engine parts 620 can not travelled owing to power or carry out the moment of reaction of glancing impact and be installed in pivotally on the vehicle body of bicycle.

In addition, output sleeve (not giving diagram) is by the case portion of reductor 622 side towards frame, and for example the right side is outstanding.This output sleeve is installed in the outer of hind axle 609 with one heart and with freely rotating and places.

Trailing wheel 608 is to be installed on the cylindrical of this output sleeve, and acceptance is subjected to revolution by the revolution of the engine main body 621 of reductor 622 outputs and drives.

And, utilize the installation constitution of this trailing wheel 608 for output sleeve, engine parts 620 are installed in a side of bicycle, for example become as shown in Figure 31 by the outstanding slightly to the left state of the vehicle body centre line C L of bicycle.

Engine main body 621 is to adopt the air-cooled engine of travelling, and air-cooled 2 cycle engines for example travel.

In order to improve the cooling effectiveness of this driving engine, to in the middle of head, be with the cylinder 627 of light-up plug 628 towards the place ahead of travel direction horizontal arrangement, and around cylinder 627, the most sheet levels and vertical radiating gill 630,631 that extend in parallel along travel direction are set as also showing among Figure 32.

Moreover Figure 32 sees the block diagram that cylinder 627 obtains by the upper left side of frame, the place ahead of the arrow F direction indication bicycle running direction among this figure, the left direction of the arrow L direction indication bicycle among this figure.

Among most sheet levels of 4 directions around cylinder 627 and vertical radiating gill 630,631, the horizontal radiating gill 630 outstanding to the left and right sides of cylinder 627 is to be made of following radiating gill: be configured in above-below direction midway location and to the side outstanding greatly for example 5 middle radiating gill 627a with clip in the middle of these that radiating gill 627a are configured in the above-below direction both sides and to the outstanding most sheet radiating gills in side, radiating gill up and down 627 of 2 respectively for example.Moreover the outstanding size of radiating gill 627A is little more than middle radiating gill 627a up and down.In addition, vertical fins 631 is that for example each radiating gill 631a of 5 constitutes by between the horizontal radiating gill 627 that is clipped in up and down and the most sheet radiating gills that are provided with.

And, among horizontal radiating gill 630, give prominence to maximum radiating gill to side away from frame, for example towards the middle radiating gill 627a in vehicle body left side, all resemble Figure 31 with as shown in Figure 32, for example with the rear end of travel direction be basic point along with extend in the place ahead to travel direction, outstanding length is lacked gradually with shortening becomes heeling condition.

Because this external side end bevelled fin shape that makes, the width dimensions of the anterior horizontal direction of radiating gill 627a in the middle of making (horizontal wide) is shorter than the width dimensions (horizontal wide) of rear horizontal direction.And the position ratio that can make pedal 606 is to live also dislocation to the inside, in an amount equivalent to the horizontal wide value of that part that shortens.Moreover, the stand out in the middle of W represents between the front and back end of radiating gill 627a.

On the other hand, for this cylinder 627, radiating gill 627a in the middle of being not only has also taked some measures for the head that light-up plug 628 is installed.

The following describes these measures, 627b is the circular mounting face at the light-up plug 628 of cylinder 627 heads outside middle part formation, 628a is arranged at the middle light-up plug patchhole of this attachment face 627b, and 627c is the negative thread that is machined in screw-in light-up plug 628 usefulness on the light-up plug patchhole 628a inner headed face.

In addition, 628b inserts the road by attachment face 627b to the light-up plug that the place ahead of cylinder 627 forms among the figure.

Stay the space that this light-up plug inserts road 628b, level is forwards extended with vertical radiating gill 630,631, surrounds cylinder 627 head ground configuration levels and vertical radiating gill 630,631.

The medial extremity that is configured in each level and vertical fins 630,631 around the light-up plug 628b is to be connected on the annular muscle 627d that is given prominence to by the head outside.Muscle 627d is configured as the conical surface-shaped that the place ahead enlarges.In addition, this muscle 627d is because former in the casting thereby be provided with.

The light-up plug that muscle 627d by this conical surface-shaped is surrounded inserts road 628b and light-up plug 628 can be installed on the head of cylinder 627.

In addition, among the muscle 627d of this conical surface-shaped, will be towards the several sections between the radiating gill 631a of vertical direction (vertical fins 631a), for example be clipped in each 2 place up and down between the radiating gill 631a and make breach and become the slot shape, it is uncovered to make gap 627f between radiating gill 631a insert road 628b to light-up plug.

Because the uncovered 627e (notch part) of this slot shape, the upper and lower part at the light-up plug 628 in the muscle 627d that forms pit is respectively formed at the ventilation unit that is communicated with between the radiating gill, makes the air flows in this pit become easy.Certainly, can make also between radiating gill that light-up plug is inserted road 628b is uncovered at the position more than 2 places.

In addition, because the muscle 627d of conical surface-shaped is based on former in the casting thereby is provided with, when to make several sections between such vertical fins be muscle 627d jaggy, the muscle 627d of conical surface-shaped can be made complete circular conical surface, and then will constitute muscle portion between the radiating gill of ventilation unit and remove and suit.

So, make the bicycle that is loading such engine parts 620 carry out manpower when travelling, when the rider pedals pedal 606 of bicycle made pedal crank 605 revolutions, the torque that then acts on the pedal 606 passed to free gear 610 from sprocket wheel 607 by chain 611, drives trailing wheel 608.

The lateral plan and the birds-eye view of cyclist's pin when the long and two-short dash line S among Figure 30 and Figure 31 is illustrated in pedal 606 in this foot-operated travelling and moves to rear.

At this moment, if during represented horizontal radiating gill cylinder in the past 627 and axis parallel of long and short dash line, then the position of the pedal heel portion that must escape to 606 the rider of treadling to the vehicle body side of bicycle is not touched the position of horizontal radiating gill.

From the present invention, external side end to the outstanding middle radiating gill 627a (horizontal radiating gill 630) in frame side, the horizontal wide of its front side forms with shortening, therefore, the position that can make the pin of stepping on the cyclist on pedal 606 is near the frame side, in an amount equivalent to this horizontal wide value that shortens.

Specifically, as shown in figure 31, the position that can make pedal is near the frame side, reaches in the past heel portion of stepping on the cyclist on pedal 606 and the position touched of horizontal radiating gill.

In other words, when supposing to be W with the horizontal radiating gill of the axis parallel of cylinder 627 with the stand out of the horizontal radiating gill of bevelled, then owing to make horizontal radiating gill become the bevelled shape, near side own, its amount was roughly size W than in the past in the position that can make pedal.

Therefore, if when making the position left-right symmetric of pedal, then consider to make the size of space between the pedal of the left and right sides to dwindle the numerical value of 2W by both sides.

Its result can make the size of space between the pedal of the left and right sides be reduced to and the same degree of common bicycle, because dwindling of width dimensions can obtain the miniaturization of the bicycle of band primary mover.And the difficulty that separately treadles of the bipod that can avoid the cyclist.

On the other hand, utilizing driving engine to carry out power when travelling, is to make the air-cooled 2 cycle engines starting of travelling from the state that rides on the bicycle.Then, this engine speed is risen, by not giving graphic centrifugal type automatic clutch, when making this biography speed of starting export to the output sleeve of reductor 622, trailing wheel 608 is promptly by engine drive.

Along with the power of such bicycle travels, air is entered in the pit of the conical surface-shaped around the light-up plug 628 by the forward end of cylinder 627.

At this moment, the upper and lower part of the muscle 627d of the conical surface-shaped of formation pit, form the uncovered 627e (shortcoming portion) of slot shape, be communicated with the gap 627f of 631 of vertical fins, therefore, enter air in the pit and meet and be divided into above-below direction after the attachment face 627b of light-up plug 628 and turn to, form ventilation unit and flow between the vertical fins 631 through uncovered 627e.

In addition, stop at bicycle, during racing of the engine, because convection current, air enters pit by the uncovered 627e of downside, flows out to the outside by the uncovered 627e of upside.

This we can say when bicycle running when stopping, and the air of pit all is circulation easily, and air can not be stuck in the formed pit of muscle 627d of this conical surface-shaped.

Its result can not hinder the cooling of cylinder 627 heads, can prevent that engine efficiency from reducing and shortcomings such as temperature rising that light-up plug 628 is unnecessary.

In addition, as an embodiment, be to use air-cooled 2 cycle engines that travel as air-cooled engine, but be not limited in this, also can use other air cooling driving engines that travels, air-cooled 4 cycle engines for example travel.

The structure and the effect of the airfilter of the 10th embodiment of the present invention are described referring to Figure 33 and Figure 34.

The airfilter of embodiment is applicable to engine parts, these engine parts are to make its cylinder head be loaded on the trailing wheel axial region of the bicycle that does not give graphic drive machine towards the travel direction on even keel, Figure 33 is the longitudinal section (left is the direct of travel of bicycle) of airfilter, and Figure 34 is the main body figure of airfilter vital parts.

In these figure, the 702nd, carburettor (Figure 33), 702a is airfilter flange that usefulness is installed (in Figure 33 be one with carburettor), the 730th, airfilter, the 731st, air filter case, the 732nd, air filter cap, the 733rd, airfilter core, 730a is the airfilter inner chamber, and 730b is an inhaling silencer.

Air filter case 731 is casting forming spares of aluminum alloy, 731a is the circular port portion in an end (left side among the figure), 731b is the square opening portion of the other end, 731c is the inboard at the 731b of square opening portion, section forms the bearing portion of circular filter element 733,731d is the inhaling silencer portion that forms tunnel shape on the top of the 731b of square opening portion, 731e is circular refluence stopboard, and 731f (Figure 34) and 731g (Figure 34) are respectively the through holes and the screw that is arranged at the foreign side both sides of the 731b of square opening portion that is arranged at circular port portion 731a both sides.

The 731d of inhaling silencer portion constitutes with a plurality of (being 3 among the figure) tunnel shape groove, and outstanding to the top of the 731b of square opening portion and the direction of air filter cap 732 (Figure 33's is right-hand), the direction of downside and above-mentioned lid 732 (right side among the figure) is opened wide.

Air filter cap 732 is resin molded parts, 732a is a part and does not give the outer wall that graphic engine protection cover is equipped in the engine parts peripheral part with becoming one, 732b forms the single-piece section with the inboard of outer wall 732a to become cubic box-type inwall, 732c is a plurality of semi-round breach that is arranged at inwall 732b upper side wall terminal part, and 732d (Figure 34) is the through hole that is arranged at outer wall 732a both sides.

Filter element 733 is parts cylindraceous, and 733a is flexed into jagged paper, and 733b is the ring-type end plate at fixedly filter paper 733a two ends, is bonding with the sponge of sealing usefulness on lateral surface.

Air filter case 731 is not to be attached on the carburettor 702 by the through hole 731f that is arranged at circular port portion 731a both sides with giving graphic screw, and air filter cap 732 is not screw and be installed on the filter case 731 with giving the screw 731g that graphic screw passes through hole 732d and air filter case 731 foreign side both sides.The 731b's of square opening portion of the end of the inwall 732b of air filter cap 732 and air filter case 731 is terminal chimeric to form airfilter inner chamber 730a, and the upper side wall of jagged 732c forms inhaling silencer 730b with the 731d of inhaling silencer portion of air filter case.In addition, cartridge 733, one end are to be embedded in the 731c of bearing portion of air filter case 731, and the other end is pressed on the outer wall 732a of air filter cap 732, and every the sponge that seals usefulness, it are clamped in the airfilter inner chamber 730a.

The following describes the effect of airfilter 730 with said structure.

During engine starting, air is such shown in arrow among Figure 33, inboard along the outer wall 732a of air filter cap 732 sucks, turn back after running into the vertical component effect of outer wall 732a, enter among the inhaling silencer 730b, flow in the airfilter inner chamber 730a by breach 732c, after filtering by filter element 733, become in the peace and quiet inrush of air carburettor 702.Moreover refluence stopboard 731e is used to prevent that mixture gas from being flow backwards by carburettor 702 sides and filter paper 733a is got wet.

The tubular air flue of inhaling silencer 730b is divided into two parts, forms air filter case 731 sides and air filter cap 732 sides, all do not have osed top section shape part above the either party of air filter case 731 and air filter cap 732.

In addition,, make carburettor 702 cooling, air filter case 731 is made the aluminium alloy compression casting drip molding, make under the situation of carburettor cooling there is no need, also can make the drip molding of synthetic resin in order not reduce output because of carburettor 702 becomes high temperature.

Below, according to Figure 35-Figure 38 the 11st embodiment of the present invention is described.

Reductor 855 has gear case shown in Figure 35 857.In formative gear chamber, the inside of this gear case 857 858.Intermeshing a plurality of gear (show and give diagram) is housed in gear chamber 858.In the bottom of this gear chamber 858, accumulating the lubricating oil that is used for oilgear, one one of gear is immersed in this lubricating oil.In addition, above-mentioned back axle 846 is housed in gear chamber 858.Back axle 846 and said gear interlock, and the output shaft of the above-mentioned reductor 855 of double as, this back axle 846 is to run through said gear case 857 ground to be configured.And, on the sidewall of gear case 857, form hub portion 857a, in order to supporting back axle 846.

Gear case 857 is mutually integrated with crankcase.The gear chamber 858 of this gear case 857 is by airtight being split to form in next door (not giving diagram) with the crankshaft room of crankcase.And an end of bent axle is passed above-mentioned next door and is drawn out in the gear chamber 858, the input shaft of the above-mentioned reductor 855 of extension double as of this bent axle.

Therefore, after the starting of 2 cycle engines, give reductor 855, drive trailing wheels by back axle 846 by the transmission of power that the bent axle of this driving engine is exported.

As shown in figure 36, gear case 857 has the protuberance 865 to the outstanding hollow cylindrical in side.The inner space of protuberance 865 is breather chamber 866, and this breather chamber 866 is positioned at the top of above-mentioned hub portion 857a.Breather chamber 866 is opened wide to above-mentioned gear chamber 858, and the diapire 867 of this breather chamber 866 is downward-sloping facing to gear chamber 858.

On protuberance 865, integrally form smooth mount pad 868.Mount pad 868 has the mounting hole 869 that links to each other with breather chamber 866, on this mounting hole 869 air funnel 870 is installed.

Air funnel 870 has: the tube main body 871 of the hollow tube-shape that top and bottom are porose; Seal the lid 872 of these main body 871 upper end holes.These main bodys 871 and lid 872 for example can use synthetic resin material such as polypropylene to make.

As shown in figure 37, on the periphery of the top of air funnel main body 871, form projection 873, extend along circumferencial direction.In addition, lid 872 has perisporium 874, and it covers on a main body 871 top peripheries, forms embeded slot 875 on the inner face of this perisporium 874.Therefore, the perisporium 874 that covers 872 is covered on the top periphery of a main body 871, and projection 873 is fitted in the embeded slot 875 of above-mentioned perisporium 874, lid 872 can be fixed on airtightly the upper end of a main body 871 whereby.

There is air flue 877 inside of tube main body 871.The bottom of this main body 871 is the necks 878 that are shrunk to minor diameter, forms than the little throttling path 879 of above-mentioned air flue 877 diameters in the inside of this neck 878.And, chimeric the lining 880 of rubber system on the cylindrical of neck 878.Lining 880 is in neck 878 embeds above-mentioned mounting hole 869, whereby, with air funnel 870 flexibly cantilever support on the mount pad 868 of gear case 857.

On lid 872 inner face, the outstanding wall cylindraceous portion 882 that is provided with.Wall portion 882 enters in the upper end hole portion of a main body 871, and the top inner headed face of this main body 871 between, form along the continuous gap 883 of circumferencial direction.This gap 883 is communicated with the upper end of air flue 877.

On an one of tube main body 871 upper ends, form breach 885, breach 885 be the upper limb of the upper end hole that faces a main body 871 and with periphery that this upper limb links to each other on leave, this breach 885 is by lid 872 coverings.And, between this breach 885 and lid 872, form the gap 886 narrower than above-mentioned air flue 877.This gap 886, the one end is communicated with the foreign side of tube main body 871, and the other end is communicated with above-mentioned gap 883 simultaneously.Therefore, gap 886 and above-mentioned gap 883 common formation access 887, so that above-mentioned air flue 877 is communicated with the foreign side of air funnel 870, as shown in figure 37, this access 887 bends to the word of falling U shape in the upper end of air funnel 870.

In addition, as Figure 36 and shown in Figure 38, on the side of said gear case 857, integrally form the protection portion 888 of protection air funnel 870.Protection portion 888 is made of the 1st forked protection muscle 889 and the 2nd protection muscle 890, and the 1st protection muscle 889 is to clip air funnel 870, the 2 protection muscle 890 by fore-and-aft direction to extend up and down along air funnel 870.This 1st and the 2nd protection muscle the 889, the 890th surrounds air funnel 870 from three directions.

Below, the effect of above-mentioned formation is described.

The bicycle that makes the band primary mover carried out situation that power travels by engine parts under, along with from the heating of the gear in the heat affecting of 2 cycle engines and the gear case 857 etc., during the temperature rising of gear case 857, the internal pressure of gear chamber 858 promptly rose.So, because gear chamber 858 is to be communicated with the air flue 877 of air funnel 870 by breather chamber 866, air in the gear chamber 858 is such shown in arrow among Figure 37, be directed in the above-mentioned air flue 877 through throttling path 879 by breather chamber 866, from then on be discharged to the foreign side of reductor 855 then by access 887.

Therefore, when the internal pressure of gear chamber 858 raises, can make the air in this gear chamber 858 be discharged into foreign side, can make the internal pressure and the external pressure balance of gear chamber 858.Therefore, it is such when even 2 cycle engines arrive suction stroke, when becoming negative pressure with the crankshaft room of gear chamber 858 adjacency, lubricating oil in the gear chamber 858 can not drained in the crankshaft room by the part that runs through bent axle yet, the combustion performance of 2 cycle engines can be kept well, the increase of exhaust cigarette can be prevented simultaneously.

In addition, when the temperature decline of gear case 857, when the internal pressure of gear chamber 858 reduced, opposite extraneous air flowed in the air flues 877 from access 887, is directed in the gear chamber 858 by throttling path 879 thus.

The lubricating oil that accumulates in the gear chamber 858 is stirred by gear, in this gear chamber 858, become adrift vaporific, therefore, mixing mist of oil in the air in being directed into above-mentioned air funnel 870, when this mist of oil and air together are discharged to the foreign side of reductor 855, will produce the problem that the consumption of lubricating oil increases.

Yet, from above-mentioned formation, the air flue 877 of air funnel 870 and breather chamber 866 are that the throttling path 879 by minor diameter is communicated with, therefore, when containing air in the gear chamber 858 of above-mentioned mist of oil and flowing in the air flues 877 by breather chamber 866, this windstream is forced to throttling.So airborne mist of oil is owing to the inner face contact with throttling path 879 is captured, by separating in the air.Then, the mist of oil that is captured becomes aqueous, simultaneously along the downward diffluence of the inner headed face of throttling path 879, gets back in the breather chamber 866.

In addition, the air flue 877 that is communicated with throttling path 879 is broader than throttling path 879, and therefore, in the time of in this air flue 877 of inrush of air, the flow velocity of this air reduces.So heavier-than-air oil content also can be separated from air in air flue 877, is attached on the inner face of a main body 871.The oil content of separating from air, the diffluence that faces down in the inner face of air flue 877 and the throttling path 879 is got back in the breather chamber 866.

Its result is included in airborne oil content and separates from air in the inside of air funnel 870, and the air that this oil content is removed is discharged to the foreign side of reductor 855 by access 887.Therefore, can prevent that lubricating oil from along with windstream is discharged to the foreign side of reductor 855, can suppress the consumption of lubricating oil, make it a small amount of.

In addition, the diapire 867 of the breather chamber 866 that the lubricating oil of separating is got back to is downward-sloping facing to gear chamber 858, and therefore, this lubricating oil can not be trapped in the breather chamber 866, can make lubricating oil get back to the bottom of gear chamber 858 reliably.

And because above-mentioned air funnel 870 only is the cylindrical body of the hollow made of synthetic resin, structure also is simple, can provide at an easy rate with in the past check valve comparison.Therefore, though resemble the band primary mover bicycle in that the vehicle price is controlled on the lower vehicle, aspect cost any problem can not take place yet.

Moreover the connected component that air funnel 870 leads to foreign side is to be made of the narrow access 887 that bends to the word of falling U shape.Therefore, for example bigger inclination etc. takes place in the bicycle with primary mover, even the lubricating oil in the gear chamber 858 flows in the air flue 877 of air funnel 870, even and be directed into thus in the access 887, this access 887 also can be sealed by lubricated oil surface tension, therefore, can prevent that the outflow of lubricating oil is in possible trouble.

In addition, under the situation of above-mentioned formation, air funnel 870 only is held in cantilever position by the elastic force of lining 880, and therefore, when this air funnel 870 was subjected to horizontal external force, air funnel 870 might be toppled over and be extracted from mounting hole 869.

But having protection portion 888 on the said gear case 857 becomes integral body, and this protection portion 888 surrounds air funnel 870 from three directions, therefore, can protect air funnel 870 from lateral external forces, has the advantage that can prevent that air funnel 870 from coming off.

Below, referring to Figure 39-Figure 42 the 12nd embodiment of the present invention is described.

As shown in figure 39, be to utilize the support tube 938 that forwards extends by engine installation 923 to be configured in order to control engine installation 923 necessary control ropes.

Concretely, be to use the control of the engine installation 923 of the lead 945 used with buzzer phone and throttle gate steel wire rope, strangler valve steel wire rope, starter steel wire rope, intermittent operation steel wire rope or the like to intert in support tube 938 lighting a lamp of rearward extending by the front portion of vehicle body with rope 945 (driving engine equipment with distribution, pipe arrangement etc.).

And, will be connected each one of engine installation 923 by the control that the nose end of support tube 938 is drawn with rope 945.Specifically, throttle gate steel wire rope, strangler valve steel wire rope, starter steel wire rope are to be connected carburettor 929 and to be installed on the in-engine starter (not giving diagram), and the intermittent operation steel wire rope is to be connected on the control lever 946.

Below, according to Figure 40-Figure 42 explanation as the feature of present embodiment 2 leads are drawn out to outside used structure by engine installation, these 2 leads are that the electric power that is used for that electrical generator is taken place supplies to as the head lamp and the buzzer phone of loading.Figure 40 is the cutaway view of expression lead lead division, Figure 41 be by the B among Figure 40 to the figure that is seen, Figure 42 is exploded perspective view (switching direction ground up and down illustrates).

Electrical generator has magnet and stator, is installed in the engine installation, and it is to be drawn out to the outside by engine installation that the electric power that electrical generator is sent supplies to as the used lead of the head lamp of load and buzzer phone.The magnet 965 of electrical generator is installed on the flywheel of kick starter 936, and this kick starter 936 directly links with the bent axle that is arranged on the driving engine 924.Lead 964 is to be provided with 3, is connected on coil output that is positioned at stator side, is drawn out to the outside by the lead division that is arranged at as on the base chamber 924a of an example of the wall body of engine installation by lining 962.

In other words, in Figure 40-Figure 42, the 960th, lead division, this lead division 960 constitutes as following.The 961st, as formed maintenance groove on the wall portion inner face of the stator of the covering electrical generator on the crankcase 924a of an example of the wall body of engine installation, in the drawings, this maintenance groove has the 1st slot part 961A and an end and the 1st slot part 961A bonded assembly the 2nd slot part 961B of level, and the 2nd slot part is positioned at another wall portion with the wall portion square crossing of the crankcase 924a at above-mentioned the 1st slot part 961A place.In other words, in Figure 40, the jump of L font is formed at the bottom of crankcase 924a, and the 1st slot part 961A that keeps groove 961 and the 2nd slot part 961B are that the inner face along this order difference part forms, and the other end of the 2nd slot part 961B is facing to the edge portion formation of order difference part.

In Figure 40 and Figure 42,461a is connected with the end of the 2nd slot part 961B that keeps groove 961 on crankcase 924a and the lining mount pad that forms, and it is to open wide to the outside in the edge portion of the order difference part of crankcase 924a.The 962nd, insert the lining in this lining mount pad 961a.The 963rd, the protective cover of kick starter 936, it is to be combined on the order difference part of L font of crankcase 924a.

On this starter protective cover 963, form lining pressing plate 963a and lining pressing plate 963b, this lining pressing plate 963a goes up formed lining mount pad 961a subtend ground from downside pushing lining 962 with crankcase 924a, and this lining pressing plate 963b is from inboard pushing lining 962.Lining pressing plate 963a is forked to radially protruding, and lining pressing plate 963b protrudes tabularly, pushes the end face and a side of lining 962 respectively.

The 964th, lead is to prepare 3 for example to use line as head lamp, buzzer phone and public returning here.Lead 964, one end are connected and do not give on graphic generator output end, are configured along the 1st slot part 961A and the 2nd slot part 961B that protect groove 961, have necessary length in order to be drawn out to the outside.

The 965th, the magnet in the electrical generator, it is mounted on the flywheel of kick starter, and the flywheel of this kick starter is directly to link with the bent axle that is arranged on the driving engine.

At this, the shape of lining 962 is to be square column type in a side of cylinder, has 3 leads 964 are put together the hole 962a that passes through.On the cylindrical portion sidewall of lining 962,,, extend to the inboard of lining mount pad 961a so that lead 964 from the side in the patchhole 962a, can be formed protrusion 962c on square column part along the axial formation slit 962b of hole 962a.The terminal position of the protrusion 962c of this lining 962 should be set on the position of the 1st slot part 961A that approaches to keep groove 961, be not set on the position of magnet 965 of electrical generator set on the rotating flywheel for example, produce bad consequence in order to avoid lead 964 is in contact with it near kick starter.

The lining mount pad 961a that on crankcase 924a, forms with keeping groove 961 to be connected, the shape that it had will make the cylindrical portion of lining 962 and the embedding of square column part energy driving fit, and the end of portion (with the connecting portion of the 2nd slot part 961B) forms the square groove 961b of the protrusion 962c insertion that can make lining 962 within it.

Below, the effect of the lead division 960 that so constitutes is described.

When lead division 960 is installed, 3 leads 964 along being configured at the 1st slot part 961A of the formed maintenance groove 961 in the inside of crankcase 924a and the inside of the 2nd slot part 961B, are drawn out to the outside of crankcase 924a simultaneously by lining mount pad 961a.In addition, open after the slit 962b on the lining 962, in the segment insertion hole 962a that leaves the terminal suitable distance with 3 leads 964.Whereby, lining 962 is entrenched on 3 leads 964.Chimeric good lining 962 is inserted crankcase 924a to be gone up in the set lining mount pad 961a.At this moment, the protrusion 962c of lining 962 combines with the square groove 961b of lining mount pad 961a, makes lining 962 location.

In addition, starter protective cover 963 is combined in the inboard of crankcase 924a.At this moment, lining pressing plate 963a and the lining pressing plate 963b that is formed on the starter protective cover 963 inserted in the lining mount pad 961a, pressing lining 962 to be fixed in the inside of lining mount pad 961a with these lining pressing plate 963a and lining pressing plate 963b.At this, if in 962 the 2nd slot part 961B of the terminal of lead 964 and lining.

And, terminal on the lead 964 and the length between the lining 962 are stayed to such an extent that just install than short when mounted, or in the power of from the outside of case 924a lead 964 being pulled out laterally after the installation from external action in lead under the situation on 964, lead 964 can be run out of in the 1st slot part 961A that keeps groove 961.

At this moment, lead 964 is near maintenance groove 961, resembling will be near moving the line of the protrusion 962c end of the terminal of electrical generator and lining 962, shown in the long and two-short dash line D among Figure 40, on the end of the protrusion 962c that bumps at lining 962, whereby, can stop lead 964 to be moved further by the end of the protrusion 962c of lining 962.

At this, the terminal position of the protrusion 962c of this lining 962, should be set on the position of the 1st slot part 961A that approaches to keep groove 961, be not set on the position of magnet 965 of electrical generator set on the rotating flywheel for example, produce bad consequence in order to avoid lead 964 is in contact with it near kick starter.If when being set on the position of the 1st slot part 961A that approaches to keep groove 961, the lead 964 that is separated from the 1st slot part 961A that keeps groove 961 causes short circuit or broken string with regard to not contacting with the magnet 965 of set electrical generator on the revolution flywheel of kick starter.

In addition, the present invention not only is defined in the above embodiments, can carry out many variations and be implemented.

The effect of invention

As top detailed description, from invention claimed in claim 1, with from On the power set of the type that the trailing wheel of driving directly links, can utilize stepping on of bicycle Plate is piloted engine.

From invention claimed in claim 2, except the effect of the claims 1 it Outward, rising when employing device when installing utilizes manual operation to pilot engine is as long as increase few The amount part gets final product, and can obtain also very easy effect of start-up function.

And during the installing kick starter, power set also can make small-sized, and institute gets The effect that gets is to comprise that the general structure of engine also is small-sized structure.

From invention claimed in claim 3, except the claims 1 or right are wanted Ask outside 2 the effect, can make the structure that TRT is equipped with in inside, the effect that obtains Be, need do not use other power supply, can use illuminator lamp and buzzer etc.

And, TRT can be installed in compactly the inboard of flywheel magnet, can also obtain Effect be, make with the outer shape of the engine of TRT and no TRT The outer shape of motivation, size has no difference.

From invention claimed in claim 4, except the claims 3 have Effect outside, flywheel magnet is as a kind of fan, the effect that obtains is, makes to have accommodated Air in the device of electric installation circulates, particularly in the inboard of flywheel magnet, by not The heat that the self-heating of the TRT that easily dispels the heat causes can be by the lower flywheel of temperature Magnet carries out circulating cooling, prevents the temperature rise of TRT. Certainly, also can prevent generating Device is because from the warm of engine and temperature rise.

And, be the bubble-tight structure that keeps casing, therefore can not resemble arrange the outside big The air vent of air to open mouth is such, and dust enters gear-box inside by the outside, and needn't worry can be right The driving performance of bicycle is brought fault.

From invention claimed in claim 5, except the effect of claim 1, The effect that obtains is, applies flexibly as path with the loose fit section of clutch operating section, Can intactly form and make the pressure balanced ventilating structure of box house. And, because empty Gas is by the narrow and small gap between the part of loose fit, becomes only to be permitted air by anti-End the inflow of rainwater and lubricating oil and outflow suitable ventilating structure (loose fit section Narrow and small gap can prevent spilling and rainwater of oil as the oil-trap of lubricating oil in action Immerse from the outside).

In addition, only need carry out hole processing as ventilating structure, not increase part, therefore, energy Install extremely at an easy rate ventilating structure.

From invention claimed in claim 6, owing to utilize rigidity and the vibrationproof of cramp bar The elasticity of rubber bodies absorbs and relaxes the vibration that is passed to frame by power set, can make It reduces.

Therefore, can eliminate the unplessantness displeasure that the vibration from power set causes. And, the vibrationproof rubber Colloid allows the displacement of any direction for cramp bar, and is therefore, aptly selected anti-The elastic modelling quantity of the rubber bodies of shaking can obtain the vibrationproof characteristic that amplitude broad moistens. In addition, owing to prop up Hold bar and be to the front side and extend, it is enough far away that the hind axle of bicycle is left in the other end, and counter-force Little, the unplessantness displeasure when bearing counter-force is less.

In addition, owing to be that a end with cramp bar is attached on the power set, the other end is logical Cross the vibration-proof rubber body and be attached at structure on the vehicle body, for different bicycle structures all be Hold malleable, and the structure also be simple.

From invention claimed in claim 7, except above-mentioned effect, can be with light And cheap supporting construction supports power set.

From invention claimed in claim 8, except above-mentioned effect, can be from oneself The driving body forward structure is to air throttle hawser, the choke steel wire of the power set extension at rear portion The power set control of rope etc. is configured well with the rope outward appearance.

And the structure that control is passed in the hollow tube with rope does not need in addition with hawser Well ligation of outward appearance so loaded down with trivial details operation on vehicle body, configuration operation are easily and energy Reduce the installation work-hour with the bicycle of prime mover.

From invention claimed in claim 9, by engine protection cover, carburetor Profile can be by not exposing between kick starter case and the air filter case, and can See that kick starter case, engine protection cover and air filter case have integrated Outward appearance.

Therefore, can especially improve the outward appearance of the engine components that adopt air cooling engine, energy Improve the competitiveness of commodity.

And, since carburetor around only cover with hood, can prevent for The unnecessary mud of carburetor splashes and drenches with rain, can prevent since mud and water cause 2 The generation of inferior rust.

Add, the inside and outside air of protective cover circulates by passage, therefore, can prevent End the unnecessary temperature rise of protective cover inside, can eliminate the stopping of heat of protective cover inside Stagnate.

Moreover, because the partition effect that obtains by eaves section, can prevent sealing from air-filtering The connecting portion of device does not immerse the air suction inlet of air filter, the effect of bringing with preventing To prevent the increase that inspiratory resistance is unnecessary.

Its result by the engine protection cover, can synthetically obtain desirable engine components.

From invention claimed in claim 10, except above-mentioned effect, utilize every Hot plate can cut off the silencer of engine and penetrate heat for the width of cloth of carburetor.

Cut off this silencer for the result of the heat affecting of carburetor, can suppress carburetor Unnecessary temperature rise can make engine performance stable.

From the described invention of claim 11, have: blast pipe and is arranged on voluntarily Car drives and connects with the exhaust outlet on 2 cycle engines; Muffler body is with this blast pipe Connect, form simultaneously the greasy filth conveying end; Lid can be arranged on above-mentioned muffler body with loading and unloading The greasy filth conveying end on; A plurality of dividing plates are arranged on the inside of muffler body, in order to zoning The inside of this muffler body is to form a plurality of expanding chambers; Path is arranged on muffler body Inside, in order to be communicated with a plurality of expanding chambers; Tailpipe is arranged in the muffler body, with The expanding chamber of waste gas streams direction downstream connects. Muffler body is to form in one section The greasy filth conveying end, this greasy filth conveying end can cover with the lid that can load and unload.

Therefore, on the greasy filth conveying end by muffler body lid is unloaded, because greasy filth is got Outlet is opened, can will be trapped in the section of the muffler body inside faced of greasy filth conveying end Greasy filth on the branch is fetched into the silencer master easily and at short notice by the greasy filth conveying end The outside of body. Can improve from the inner operability of taking out the greasy filth operation of muffler body. Cause This can not lose the bicycle driving with the output of 2 cycle engines, can obtain and can reduce The high exhaust silencer of economy of the exhaust sound of waste gas.

From the described invention of claim 12, can make stepping on the bicycle of prime mover The size of space of plate is reduced to and common bicycle equal extent.

Its result can obtain the miniaturization with the bicycle of prime mover. And, can be owing to riding Car people's bipod separately becomes and is difficult to treadle.

From the described invention of claim 13, with the bicycle running of prime mover the time Air Flow in the pit that disposes spark plug of cylinder is become different, Air can not be stuck in this pit.

Its result, the cooling effectiveness of cylinder improves, and can suppress the reduction and fire of engine efficiency The unnecessary temperature rise of Hua Sai.

From the described invention of claim 14, it is the sky with the tubular of inhaling silencer The wall of gas path is divided into 2 parts, by air filter case and air filter protective cover Form, so on either party of air filter case and air filter protective cover, all do not have The part that the closed section shape is arranged. Therefore, it is easy to carry out comparison with die casting mold, with The time can without detriment to soundproof effect reduce cost.

Moreover, from the described invention of claim 15, be that air filter case is made Therefore the casting forming spare of aluminium alloy, makes carburetor have cooling effect, can obtain to prevent When reaching a high temperature, reduces by carburetor the effect of behavior in service.

From the described invention of claim 16, even owing to be subjected to sending out from 2 circulations When the heat affecting of motivation causes the increased pressure of gear-box inside, also can be with in this gear-box Bas Discharged can make internal pressure and the outside atmosphere pressure balanced of gear-box to outside. Cause Even this is when having arrived suction stroke as 2 cycle engines, with the song of gear-box adjacency When becoming negative pressure in the axle box, the lubricating oil in the gear-box can not leak in the crankcase energy yet Keep well the combustibility of 2 cycle engines, can prevent the increase of exhaust cigarette simultaneously.

And contained oil content is separated in by air in air funnel inside in the air, because of This can prevent that this oil content, can disappearing lubricating oil along with air stream is discharged to the reductor outside Consumption is controlled at minimum. And, the breather chamber that isolated lubricating oil is got back to, its diapire is Downward-sloping, therefore, this lubricating oil can not be stuck in vent chamber, can make the lubricating oil can Get back to the gear-box bottom by ground.

In addition, air funnel is the cylindrical body that synthetic resin is made, and therefore structure is also simple, Compare with check valve in the past, can provide at an easy rate. Therefore, even with the control of vehicle price Make on the lower vehicle, aspect cost, also any problem can not occur.

Moreover the air flue of air funnel is outside the narrow and small access by bending is communicated to Section, therefore, such as bigger inclination etc. takes place in vehicle, even the lubricating oil in the gear-box by by Air flue is directed in the access, and this access is owing to lubricated oil surface tension seals Close, thereby the outflow that can prevent lubricating oil is in possible trouble.

And by the protection section of gear-box, the advantage that has is can be from horizontal external force The protection air funnel can stop coming off of the middle air funnel that travels.

From the bicycle with prime mover of the described invention of claim 17, normally During state, lead is the 1st groove that is configured in formed maintenance groove on the wall body of power set In section and the 2nd slot part, lining is to insert to be fixed on the lining mount pad, makes lead pass lining Cover is drawn out to the outside of wall body.

And when mounted, the terminal of lead and the length after the installation between the lining are stayed Shorter, or the outside from case applies the power of pulling out laterally lead to lead after installation The time, then lead can be run out of in the 1st slot part that keeps groove, bumps the end at the protuberance of lining End. Therefore, can prevent that lead is moved further by the end of the protuberance of lining.

At this, be in contact with it at lead with its set positions with the protuberance end of lining Will produce near the object of adverse consequences, for example be set near kick starter During the position of the magnet of set generator, would be better to be set in to approach and protect on the rotating flywheel Hold on the position of the 1st slot part of groove, if be set on such position, just can not take place Be separated from the rotating flywheel of the lead of the 1st slot part that keeps groove and kick starter The magnet of set generator contact and cause short circuit or broken string.

Therefore, can obtain the bicycle with prime mover, its power set of installing have lower The lead lead division of stating: even will be connected lead on the generator to engine housing During outer side-pulling, can not be short-circuited or break yet.

Claims (17)

1. engine installation with the bicycle of primary mover, travel and utilize driving engine to carry out on the engine installation of bicycle of the band primary mover that power travels can utilizing pedal crank to carry out manpower, it is characterized in that: the formation of this engine installation comprises: driving engine, it is mounted to one with case on the fixedly hind axle that is bearing in above-mentioned bicycle with freely rotating, and the output shaft of this driving engine and above-mentioned wheel shaft are provided with abreast; Reductor, the train of gears that it is made up of hollow input shaft and multiple sets of teeth wheel and the output sleeve of hollow constitute, this hollow input shaft is installed in the above-mentioned case and becomes integral body with a gear in the said gear system, this gear can be bearing on the output shaft of above-mentioned driving engine with one heart pivotally, the output sleeve of above-mentioned hollow is coaxial with the final output gear of said gear system, and can be bearing on the above-mentioned hind axle pivotally; Mono-directional overrun clutch, it is mounted between the hollow input shaft of above-mentioned output shaft that starts and above-mentioned reductor, so that only the revolution of above-mentioned trailing wheel working direction is passed to the output shaft of driving engine by above-mentioned input shaft; Centrifugal type automatic clutch is to be used to link the output shaft of above-mentioned driving engine and the input shaft of above-mentioned reductor; Rear wheel hub, it is coaxial and be fixed thereon with above-mentioned output sleeve, the used as braking drum; Foot-operated drive sprocket wherein is equipped with ratchet, and this ratchet can only pass to above-mentioned output sleeve by pedal with the revolution of working direction; Ratchet, it is to be installed between above-mentioned speed reducer output shaft cover and the final output gear, is used for and the revolution of working direction can only be passed to rear wheel hub; Claw clutch, it is to be used for carrying out power with manual output sleeve with above-mentioned reductor with above-mentioned final gear to be connected,

Utilize the travel moment of gyration of used pedal of manpower to make the engine starting of engine installation.

2. press the engine installation of the bicycle of the described band primary mover of claim 1, it is characterized in that: above-mentioned driving engine is made the hand starting formula of utilizing kick starter to carry out, replacement is installed in the output shaft of above-mentioned driving engine and the hollow of above-mentioned reductor is imported interaxle mono-directional overrun clutch but the configuration antifriction-bearing box, and the output sleeve with above-mentioned reductor is connected with final direct geared simultaneously.

3. press the engine installation of the bicycle of claim 1 or the described band primary mover of claim 2, it is characterized in that: common igniting flywheel magnet and coil are set on the above-mentioned driving engine that produces bicycle power simultaneously, and installation power generation assembly, the first-class branch of this power generation assembly dispose a plurality of magnet and with the field winding of this magnet respective amount, above-mentioned a plurality of magnet five equilibrium is configured on the circumference, with this power supply as the bicycle subsidiary machinery.

4. press the engine installation of the bicycle of the described band primary mover of claim 3, it is characterized in that: form muscle on above-mentioned flywheel magnet, this muscle is to be used for borrowing the revolution of moving this flywheel magnet to make the interior wind circulation of device of accommodating power generation assembly.

5. press the engine installation of the bicycle of the described band primary mover of claim 1, it is characterized in that: the formation of above-mentioned claw clutch comprises: the axle orienting sleeve, and it is fixedly installed on the casing and cam path is arranged on sidewall; Axle, it is airtight and is installed in sliding freely in the above-mentioned axle orienting sleeve; The orienting sleeve protective cover, it is be installed in above-mentioned axle orienting sleeve sliding freely exterior; Pin handle, it is to be fixed on this orienting sleeve protective cover by screw thread, and end is to insert above-mentioned axle loosely by above-mentioned cam path to go up in the set blind hole other end and driving Suo Lianjie;

The mode of operation of the operation of power-transfer clutch is, when rotating above-mentioned axle with above-mentioned pin handle, this axle is promptly alongst mobile by above-mentioned cam path,

Axle center part at above-mentioned axle is provided with the hole, this hole blind hole that box house and setting-in pin handle is used is communicated with, and formation path in the gap of the gap of gap, pin handle and cam path by this hole, pin handle and blind hole and an orienting sleeve and orienting sleeve protective cover forms ventilating structure by this path.

6. press the engine installation of the bicycle of the described band primary mover of claim 1, it is characterized in that: have an end and be and be fixed on the above-mentioned engine installation and the other end is the cramp bar that is extended configuration by this engine installation to the front side of above-mentioned frame by adapter plate, be sleeved on the other end cylindrical of this cramp bar the vibration-proof rubber body with from surrounding and support the support of this vibration-proof rubber body on every side, and be to be fixed on the vehicle body of above-mentioned bicycle, utilize the mounting appliance that above-mentioned vibration-proof rubber body is fixed on the above-mentioned frame that above-mentioned engine installation is installed.

7. press the engine installation of the bicycle of the described band primary mover of claim 6, it is characterized in that: constitute above-mentioned cramp bar with hollow tube.

8. press the engine installation of the bicycle of the described band primary mover of claim 7, it is characterized in that: will control the used control of above-mentioned engine installation and pass in the above-mentioned hollow tube with rope.

9. press the engine installation driving engine of the bicycle of the described band primary mover of claim 1, it is characterized in that: above-mentioned driving engine is made the air-cooled engine of travelling with kick starter, with this engine-horizontal and also towards travel direction be configured, structure at its rear is simultaneously, press carburettor and airfilter arranged in order they, above-mentioned driving engine has: the engine protection cover, it is to be installed between kick starter case that constitutes above-mentioned kick starter and the air filter case that constitutes above-mentioned airfilter, section be flute profile and profile be ring-type with above-mentioned kick starter case and above-mentioned air filter case form continuous shape and make the above-mentioned carburettor of covering around; Air extractor vent, it is to be arranged on the sidewall of above-mentioned engine protection cover, is used to the airiness that makes this engine protection cover inside and outside; From the outstanding eaves portion that is provided with of engine protection cover, be used to cover the top of the air suctiton inlet of above-mentioned airfilter.

10. press the engine installation driving engine of the bicycle of the described band primary mover of claim 9, it is characterized in that: above-mentioned engine protection cover has cleading, become the cantilever beam shape to be projected into the lower position of above-mentioned carburettor to the inside by sidewall, the width of cloth that is used to cut off from noise silencer is penetrated heat.

11. press the engine installation driving engine of the bicycle of the described band primary mover of claim 1, it is characterized in that having exhaust muffler, the formation of this exhaust muffler comprises: freeing pipe, it is connected with above-mentioned exhaust opening of engine; Muffler body, it is connected with above-mentioned freeing pipe, forms the greasy filth conveying end simultaneously; Lid can be arranged on the greasy filth conveying end of above-mentioned muffler body with loading and unloading; A plurality of dividing plates are arranged on the inside of above-mentioned muffler body, in order to the inside of this muffler body of zoning to form a plurality of expansion chambers; Trail pipe is arranged on the inside of above-mentioned muffler body, is connected with the expansion chamber in waste gas flow path direction downstream.

12. press the engine installation driving engine of the bicycle of the described band primary mover of claim 1, it is characterized in that; Above-mentioned driving engine is to adopt the air-cooled engine of travelling, the cylinder of this driving engine is disposed towards the place ahead of travel direction on even keel, to be formed at simultaneously on this cylinder and make inclination to the shape away from the outstanding horizontal radiating gill of multi-disc in the side of bicycle, be short so that make the horizontal wide of travel direction the place ahead than the horizontal wide of rear.

13. press the engine installation driving engine of the bicycle of the described band primary mover of claim 1, it is characterized in that: above-mentioned driving engine is to adopt the air-cooled engine of travelling, the cylinder of this driving engine is disposed towards the place ahead of travel direction on even keel, simultaneously be installed on light-up plug on this cylinder around, to the medial extremity of the outstanding radiating gill in the place ahead of travel direction is to couple together the muscle of the conical surface-shaped that forms, with clip that above-mentioned light-up plug is disposed at up and down two sides and between the radiating gill of vertical direction the muscle portion of folded above-mentioned conical surface-shaped remove respectively.

14. press the engine installation driving engine of the bicycle of the described band primary mover of claim 1, it is characterized in that: possess airfilter, be with above-mentioned driving engine on the airfilter that is installed together of carburettor, it has air filter case, airfilter protective cover and airfilter core, above-mentioned air filter case and above-mentioned carburettor link together, above-mentioned airfilter protective cover is mounted on the above-mentioned air filter case, above-mentioned airfilter core is to be clamped in by in above-mentioned air filter case and the formed airfilter inner chamber of above-mentioned airfilter protective cover, on above-mentioned airfilter, form inhaling silencer, this inhaling silencer is to be formed by the air-breathing noise elimination portion of tunnel shape and the upper wall with semicircle breach of above-mentioned airfilter inner chamber, the outstanding upside that is arranged at above-mentioned air filter case of air-breathing noise elimination portion of above-mentioned tunnel shape, its downside and an end open wide.

15. press the engine installation driving engine of the bicycle of claim 14 described band primary movers, it is characterized in that: the casting forming spare that above-mentioned air filter case is made aluminum alloy.

16. press the engine installation of the bicycle of the described band primary mover of claim 1; it is characterized in that: crankcase that makes above-mentioned driving engine and the gear case of above-mentioned reductor that accumulates lubricating oil integrated the sidewall of said gear case of above-mentioned casing on; integrally form the outstanding breather chamber of export-oriented foreign side; this breather chamber has facing to diapire downward-sloping in the gear case; the air funnel of hollow tube-shape is installed on the top of this breather chamber simultaneously; the air funnel of this hollow tube-shape has the air flue that is communicated with above-mentioned breather chamber; on above-mentioned air funnel and part that above-mentioned breather chamber is communicated with, has the throttling path of also wanting minor diameter than above-mentioned breather chamber and air flue; has simultaneously the narrow access that makes the bending that above-mentioned air flue is communicated with outside atmosphere in end with the opposite side of this throttling path; and the protection portion that surrounds above-mentioned air funnel integrally is set on the said gear case, thereby forms ventilating structure.

17. press the engine installation of the bicycle of the described band primary mover of claim 1, it is characterized in that: the electrical generator that is generated electricity by above-mentioned engine drive is housed in above-mentioned engine installation, on the tank wall of this engine installation, form the lead of forming by the 1st slot part and the 2nd slot part maintenance groove, above-mentioned the 2nd slot part is positioned on another part of the above-mentioned wall body that intersects with the part of the above-mentioned wall body at the 1st slot part place, one end of above-mentioned the 2nd slot part is connected with above-mentioned the 1st slot part, and the other end bonded assembly lining mount pad of above-mentioned the 2nd slot part of formation and above-mentioned maintenance groove on above-mentioned wall, the lining configuration of simultaneously lead being used is fixed on this lining mount pad, in addition, dispose and above-mentioned electrical generator bonded assembly lead in above-mentioned the 2nd slot part at above-mentioned the 1st slot part from above-mentioned maintenance groove, simultaneously this lead is passed and remains in the above-mentioned lining, be pulled out to the outside of above-mentioned wall body then, moreover, length direction along above-mentioned the 2nd slot part on above-mentioned lining forms protrusion, and this protrusion is facing to the cross part of above-mentioned the 1st slot part and the 2nd slot part.

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