WO2004092003A1 - Dispositif a vilebrequin, pedalier et vehicule equipes de ces dispositifs - Google Patents

Dispositif a vilebrequin, pedalier et vehicule equipes de ces dispositifs Download PDF

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Publication number
WO2004092003A1
WO2004092003A1 PCT/JP2004/005270 JP2004005270W WO2004092003A1 WO 2004092003 A1 WO2004092003 A1 WO 2004092003A1 JP 2004005270 W JP2004005270 W JP 2004005270W WO 2004092003 A1 WO2004092003 A1 WO 2004092003A1
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WO
WIPO (PCT)
Prior art keywords
gear
crank
pedal
adduction
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2004/005270
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English (en)
Japanese (ja)
Inventor
Masakatsu Noma
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Individual
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Individual
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Filing date
Publication date
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Priority to JP2005505412A priority Critical patent/JP4040653B2/ja
Publication of WO2004092003A1 publication Critical patent/WO2004092003A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/26—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by rotary cranks combined with reciprocating levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M17/00—Transmissions characterised by use of rotary shaft, e.g. cardan shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/06—Construction of cranks operated by hand or foot with elliptical or other non-circular rotary movement

Definitions

  • the present invention relates to a crank device, a vehicle crank pedal device equipped with the same, and a vehicle equipped with the same.
  • the present invention relates to a bevel gear in which an internal gear is rotatably supported on a crank arm, and a reciprocating motion of an input member (pedal) provided on the internal gear in a vertical direction is converted into a rotary motion for rotating the crank arm.
  • a rotational force extracting means such as a shaft drive system including a drive shaft and a chain sprocket system, a pedal crank device for vehicles equipped with the same, and the like. It is related to vehicles equipped with. Background art
  • a crank pedal device provided on a bicycle converts a rotary motion of depressing a pedal toward a bottom dead center into a rotary motion of rotating a crankshaft via a crank arm, and a sprocket mounted integrally with the crankshaft.
  • the wheels are driven by rotating the sprockets of the wheels using a chain wound around the wheels.
  • the pedal is depressed to apply rotational motion to the crankshaft, the weight shifts and the pedal is depressed, causing the steering wheel to fluctuate, causing unstable running and transmission of power to the crank device. Efficiency was lost.
  • a technique devised to solve such a problem for example, a technique disclosed in Japanese Utility Model Publication No. 2-444628 is known.
  • the bicycle pedal crank device described in this publication also includes a pair of upper and lower sprockets provided on the left and right sides of a sprocket mounted on a sprocket fixed to a crankshaft. Wrap a pair of chains between the sprockets, attach the left and right pedals so that they can be disengaged from the tight side of the chain, and repeat the operation of stepping on the pedals from top to bottom to the wheels. It transmits the driving force so that the vehicle can run.
  • the position of the mounting shaft of the input member (pedal) provided on the adduction gear is set to By forming the center of the rolling gear and the center of the crankshaft so as to be offset so that they do not exist on the connection line, the crankshaft is smoothly driven to rotate to extract the rotational force (for example, a sprocket or a
  • the crankshaft is smoothly driven to rotate to extract the rotational force (for example, a sprocket or a
  • the present invention has taken the following measures. That is, in the invention according to claim 1, a crankshaft rotatably provided on a fixed member via a bearing portion, a pair of crank arms provided on both sides of the crankshaft, and a rotatable rotation on each of the crank arms A pair of internal gears provided on the fixed member, a fixed gear provided on the fixing member, and in which the internal gears are inscribed in a planetary gear manner, and a pair of driving force transmitting means provided on the internal gears.
  • the ratio of the number of teeth to the fixed gear is formed such that the internal gear rotates once when the internal gear makes one revolution while rolling on the fixed gear, and further, the driving force transmitting means via the input member.
  • an internal gear is provided on a pair of crank arms on both sides of the crankshaft rotatably provided on the bearing portion, and the internal gear is joined and rolled while being inscribed in the fixed gear. It is formed as follows. Then, the gear ratio is set so that the adduction gear makes one revolution while making one rotation of the fixed gear, and the input member is engaged with the driving force transmission means provided on the adduction gear. When the input member is pushed down from the vicinity of the top dead center to the vicinity of the bottom dead center, a rotating moment is generated in the adduction gear by the action of a lever having a contact point between the adduction gear and the fixed gear as a fulcrum.
  • the rotational force take-out means is formed by a shaft drive system consisting of a bevel gear and a drive shaft, instead of a winding link mechanism such as a chain or belt, play and slack of the winding link mechanism will not occur.
  • the torque applied to the pedal can be transmitted to the wheels without loss, and the energy transmission efficiency can be improved.
  • the crank arms provided on both sides of the crankshaft are formed as arms that extend in opposite directions to each other with respect to the crankshaft, but instead have no phase angle, that is, extend in the same direction as each other. Needless to say, the arm may be formed on the arm, that is, the direction extending from the crankshaft may be arbitrarily set.
  • the invention according to claim 2 relates to the crank device according to claim 1, wherein the driving force transmitting means includes: a slider formed on the input member;
  • the slider is formed of a track guiding portion that receives and guides a rotor, and the slider has an axis of the internal gear and an axis of the crankshaft regardless of the position of the internal gear.
  • the present invention is characterized in that it is guided at a position deviated from the line connecting the two and is located near the lowermost part of the track guiding part.
  • the driving force transmitting means is connected to the fold of the input member, for example, in a curved shape, an elliptical shape, a polygonal shape, a linear shape, and the like.
  • a track guiding section having the shape of
  • the slider is located near the bottom of the track guide so that, for example, the adduction gear is located at the top dead center or its position relative to the fixed gear.
  • the slider will be placed at a position deviated from the line connecting the axis of the internal gear and the axis of the crankshaft, and the internal gear and the fixed gear will come into contact with each other.
  • Rotational moment acts on the internal gear by the lever action with the part (contact point) as a fulcrum, so that the internal gear can be rolled easily. You can give power.
  • the crank device wherein the track guiding portion is formed in a shape that defines an elliptical, polygonal, substantially linear, or curved track.
  • the slider of the input member is a groove or rail (including a rail formed by a single line) defining an elliptical, polygonal, substantially linear or curved track.
  • crank device according to the second aspect, wherein the track guiding portion is formed by an inclined groove having a substantially linear shape or a curved shape.
  • the invention described in claim 4 has the following operation in addition to the features described in claim 2. That is, since the slider of the input member exists near the lowermost part of the track guiding portion formed by the inclined groove, the vertical reciprocating motion of the input member can be efficiently converted into the rotary motion. You.
  • crank device according to the fourth aspect, wherein a spring member is provided in the inclined groove, and the slider is kept close to the lowermost portion at the time of input by a spring force of the spring member. It is characterized in that.
  • the internal rotation gear is fixed since the slider is always urged by the spring force of the spring member provided in the inclined groove so as to be forced to stay near the lowermost position. Regardless of the rolling position with respect to the gear, the slider can be located near the lowermost portion of the inclined groove, so that the internal gear can be reliably rolled, and the input member The reciprocating motion in the up and down direction can be efficiently converted to rotary motion to obtain propulsion.
  • the invention described in claim 6 is the invention according to any one of claims 2 to 5.
  • a joint portion between the internal gear and the fixed gear is covered with a cover so as not to interfere with the outside.
  • the adduction gear and the fixed gear are entirely covered by the cover, for example, when the present crank device is mounted on a vehicle such as a bicycle, the two gears are used. Depending on the joints, it is possible to prevent clothes and stepping stones, etc. from getting injured.
  • crank device configured to make the input member reciprocate in the vertical direction. It is characterized in that a provision means is provided.
  • the guide means regulates the reciprocating motion of the input member in the upward and downward directions, a large movement (displacement) of the pedal due to a sudden brake or the like is avoided, so that the movement from the pedal is prevented.
  • this crank device is mounted on a vehicle such as a bicycle, the teeth of the fixed gear and the internal gear will be cut off due to the impact force received when the bicycle falls. As a result, it is possible to avoid a situation where the combined state is worsened.
  • the invention according to claim 8 relates to the crank device according to any one of claims 2 to 7, wherein the adduction gear is formed in a sprocket form, and the fixed gear is in a chain form or a pin form. It is characterized by being formed by.
  • the sprocket type internal gear is formed so as to mesh with the chain type fixed gear, the engagement between the sprocket and the chain type or the pin type is achieved. That is, the engagement between the add-on gear and the fixed gear is ensured, and the transmission efficiency of the driving force from the input member to the means for taking out the rotational force is not reduced.
  • the invention according to claim 9 is the invention according to any one of claims 2 to 7.
  • the internal gear is formed in a chain form or a pin form
  • the fixed gear is formed in a sprocket form.
  • the chain-shaped or pin-shaped adduction gear is formed so as to mesh with the sprocket-type fixed gear, the relationship between the chain and the sprocket can be improved. In other words, the engagement between the adduction gear and the fixed gear is assured, and when the driving force is taken out from the input member to the means for taking out the torque, the transmission efficiency of the driving force is not reduced.
  • crank device according to any one of the first to ninth aspects, wherein the rotational force extracting means is formed of an elliptical sprocket.
  • the speed change when the pedal is depressed downward can be canceled to achieve an averaged speed.
  • the present invention relates to a vehicular crank pedal device, comprising: a crankshaft rotatably provided on a vehicle body via a bearing portion; a pair of crank arms provided on both sides of the crankshaft; A pair of rotatable internal gears, fixed gears mounted on the vehicle body, and fixedly connected to each other by planetary gears, and mounted on the internal gears.
  • a crank device for a vehicle such as a bicycle, a hand cycle which is a wheelchair and runs like a bicycle, a water pedal boat, a human powered airplane, etc.
  • a pair of internal gears are provided on the crank arms on both sides of the crankshaft rotatably provided on the bearing portion, and the internal gears are provided so as to be engaged and rolled while being in contact with the fixed gear.
  • the gear ratio is set so that the adduction gear makes one revolution during one revolution of the fixed gear, and the pedal mounting shaft is engaged with the driving force transmission means provided on the adduction gear.
  • the rotational force take-out means is formed by a shaft drive system consisting of a bevel gear and a drive shaft instead of a winding link mechanism such as a chain or a belt, play and slack of the winding link mechanism do not occur. As a result, the rotational force applied to the pedal can be transmitted to the wheels without loss, and the energy transmission efficiency can be improved.
  • crank arms provided on both sides of the crankshaft are formed as arms extending in opposite directions to each other with respect to the crankshaft, but instead have no phase angle, that is, extend in the same direction as each other. Formed like an arm
  • the direction extending from the crankshaft may be formed in any form.
  • the invention according to claim 12 relates to the crank pedal device for a vehicle according to claim 11, wherein the driving force transmitting means is provided on a slider provided on a mounting shaft of the pedal and on the adduction gear. And a trajectory guiding portion for receiving and guiding the slider, and the slider is connected to the axis of the internal gear and the crankshaft regardless of the position of the internal gear. It is characterized in that it is guided at a position deviated from a line connecting the axis center and near the lowermost part of the orbital guiding part.
  • the mounting axis of the pedal is engaged with a track guiding section having, for example, a curved shape, an elliptical shape, a polygonal shape, or a straight line shape, and is always located near the lowermost portion of the track guiding portion.
  • the invention according to claim 13 relates to the crank pedal device for a vehicle according to claim 12, wherein the trajectory guiding portion is formed into an elliptical, polygonal, substantially linear or curved trajectory. It is characterized by having.
  • the track guide when the track guide is formed by, for example, a groove or a rail (including a single rail), the groove or the rail is formed into an elliptical shape, a polygonal shape, or the like. Since the slider provided on the mounting shaft of the pedal is located near the lowermost part of the track guide, the internal gear becomes a fixed gear. When rolling together, no matter what angle of rotation, the lever can be used to constantly and smoothly rotate the internal gear, making the reciprocating motion of the pedal a smooth rotational motion. It can be converted, and it becomes possible to suppress the wobble of the vehicle by the operation accompanying the weight shift as in the past.
  • the invention according to claim 14 relates to the pedal crank device for a vehicle according to claim 12, wherein the track guiding portion is formed by an inclined groove having a substantially linear shape or a curved shape.
  • a spring member is provided in the inclined groove, and when the slider is input by the spring force of the spring member, the slider is located near the lowermost portion. It is characterized in that it can be kept.
  • the slider since the slider is always urged by the spring force of the spring member provided in the inclined groove so as to be forced to stay near the lowermost position, the adduction gear is used. Regardless of the rolling position with respect to the fixed gear, the slider can be located near the lowermost portion of the inclined groove, so that the internal gear can be reliably rolled, and the input member The reciprocating motion in the up and down direction can be efficiently converted to a rotating motion to obtain a propulsive force.
  • the invention according to claim 16 relates to the pedal crank device for a vehicle according to any one of claims 12 to 15, wherein an interlocking portion between the internal gear and the fixed gear interferes with the outside. It is characterized in that it is covered with a cover so as not to be covered.
  • the adduction gear and the fixed gear are entirely covered by the cover, when the vehicle is a bicycle or the like, the clothing is formed by the joint between the two gears. It is possible to prevent a sudden stop of the vehicle turning, and to realize safe driving. You.
  • the invention according to claim 17 relates to the vehicle pedal crank device according to any one of claims 12 to 16, wherein the fixed gear is provided with a mounting shaft of the pedal in the vertical direction. It is characterized in that guide means for regulating reciprocation are provided.
  • the pedal mounting shaft in the vertical direction is defined by the guide means, even if a large external force acts on the pedal due to a sudden brake or the like, the pedal is mounted on the pedal.
  • the mounting shaft moves (displaces) along the guide means, preventing the foot from accidentally detaching from the pedal, and, for example, when the bicycle falls over and the pedal receives impact force.
  • the invention according to claim 18 relates to the crank pedal device for a vehicle according to any one of claims 12 to 17, wherein the adduction gear is formed in a sprocket form, and the fixed gear is a chain. It is characterized by being formed in a form or a pin form.
  • the sprocket-shaped adduction gear is formed so as to mesh with the chain-shaped or pin-shaped fixed gear, the engagement between the sprocket and the chain is achieved.
  • the engagement between the adduction gear and the fixed gear is assured, and the driving force input from the mounting shaft of the pedal to the track guiding section is efficiently transmitted to the rotational force take-out means.
  • the invention according to claim 19 relates to the crank pedal device for a vehicle according to any one of claims 12 to 18, wherein the adduction gear is formed in a chain form or a pin form, and the fixed The gear is formed in a sprocket form.
  • the rolling gear is formed so as to mesh with the fixed gear in the sprocket form, the engagement between the chain and the sprocket, that is, the engagement between the internal gear and the fixed gear, is ensured, and the pedal The driving force input from the mounting shaft to the track guiding section is efficiently transmitted to the rotational force extracting means.
  • the invention according to claim 20 relates to the crank pedal device for a vehicle according to any one of claims 11 to 19, wherein the rotational force extracting means is formed by an elliptical sprocket.
  • the invention according to claim 21 is a vehicle, wherein the vehicle is equipped with the crank device according to any one of claims 1 to 10, and a pedal or the like is stepped downward and stepped forward. It is characterized by having done.
  • the vehicle is provided with a crank device, whereby the pedal or the like is depressed downward and stepped forward, so that in addition to the bicycle, a three-wheeled bicycle, a four-wheeled bicycle, By using it for various purposes, such as a port where the pedal is depressed on the water with a pedal crank device, training equipment, and a human-powered airplane, it is possible to realize a vehicle that can efficiently convert the operating force due to reciprocating motion into rotational motion.
  • the invention according to claim 22 is a vehicle, wherein the vehicle is equipped with the vehicle crank pedal device according to claims 11 to 20, and the pedal or the like is stepped down and stepped forward. It is characterized by.
  • the vehicle is provided with a crank pedal device for a vehicle, whereby a pedal or the like is depressed downward and depressed forward, so that in addition to a bicycle, 3 wheel bike, 4 wheel bike, water
  • a crank pedal device for a vehicle, whereby a pedal or the like is depressed downward and depressed forward, so that in addition to a bicycle, 3 wheel bike, 4 wheel bike, water
  • a port where the pedal is depressed with a pedal crank device, training equipment, and a human-powered airplane to realize a vehicle that can efficiently convert the operating force due to reciprocating motion into rotational motion.
  • crank arm, the adduction gear, the driving force transmission means, and the input member are cranked according to the invention described in claim 1.
  • the configuration is provided on both sides of the shaft, the invention according to claim 23 is different from the configuration provided on one side of the crankshaft, and the other configurations are common.
  • the invention according to claim 23 is a crank device, comprising: a crank shaft rotatably provided on a fixed member via a bearing portion; a crank arm provided on the crank shaft; An internal gear that is freely provided; a fixed gear that is provided on the fixed member and that is brought into contact with the internal gear as a planetary gear; a driving force transmitting unit that is provided on the internal gear; An input member engaged with the transmission means, and a rotational force extracting means integrally provided on the crankshaft, for extracting the rotational force transmitted from the internal gear to the crank arm as a propulsion force, and
  • the ratio of the number of teeth between the add-on gear and the fixed gear is set so that the add-on gear makes one revolution when making one revolution while rolling on the fixed gear.
  • an internal gear is provided on the crank arm of the crankshaft provided to rotate on the bearing portion, and the internal gear is The gears are formed so that they roll together while being in contact with the fixed gear, while the gear ratio is set so that the internal gear rotates once during one revolution of the fixed gear. Since the input member is engaged with the provided driving force transmission means, when the input member is pushed down from near the top dead center to near the bottom dead center, the contact point between the adduction gear and the fixed gear is used as a fulcrum. Due to the action of the lever, a rotating moment is generated in the adduction gear. As a result, the internal gear rotates to the fixed gear, and at the same time, the crankshaft rotates via the crank arm, so that the rotational driving force can be efficiently extracted to the outside from the torque extracting means.
  • the rotational force take-out means is formed by a shaft drive system consisting of a bevel gear and a drive shaft instead of a winding link mechanism such as a chain or a belt, play and slack of the winding link mechanism do not occur. As a result, the rotational force applied to the pedal can be transmitted to the wheels without loss.
  • the crank device according to the twenty-third aspect, wherein the driving force transmitting means is provided on a slider formed on the input member and on the internal gear.
  • the slider is formed of a track guiding portion that receives and guides the slider, and the slider has an axis of the internal gear and an axis of the crankshaft regardless of the position of the internal gear. And is guided at a position deviated from a line connecting the and the lowermost part of the orbital guiding part.
  • the driving force transmitting means is formed of a slider of the input member and a track guiding section having, for example, a curved, elliptical, polygonal, or linear shape. It is always located near the bottom of the guide. For this reason, the slider is located in the vicinity of the lowermost part of the track guide part. When the slider comes into contact at or near the top dead center, the slider will be located at a position deviated from the line connecting the axis of the internal gear and the axis of the crankshaft.
  • the rotation of the internal gear is made possible by the action of the lever with the fulcrum of the contact point (contact point) where the internal gear is in contact with the internal gear.
  • the driving force can be given by rotating the shaft.
  • the invention according to claim 25 is significantly different from the invention according to claim 11, in the invention according to claim 11, a crank arm, an adduction gear, driving force transmitting means, And an input member (corresponding to the "handle-type pedal” in the invention of claim 25), respectively, whereas in the invention of claim 25, one side of the crank shaft is provided. In the configuration in which they are arranged.
  • an invention according to claim 25 is a crank pedal device for a vehicle, comprising: a crank shaft rotatably provided on a vehicle body via a bearing portion; a crank arm provided on the crank shaft; An internal gear rotatably provided on the vehicle body; a fixed gear provided on the vehicle main body, wherein the internal gear is inscribed in a planetary gear manner; a driving force transmitting means provided on the internal gear; A handle-type pedal engaged with the force transmitting means; and a rotational force extracting means provided integrally with the crankshaft and extracting a rotational force transmitted from the internal gear to the crank arm as a propulsive force.
  • the ratio of the number of teeth between the add-on gear and the fixed gear is formed so that the add-on gear makes one revolution when making one revolution while rolling on the fixed gear.
  • crank device of various vehicles such as airplanes, etc.
  • an internal gear is provided on a crank arm of a crankshaft rotatably provided on a bearing portion, and the internal gear is rotated while being in contact with a fixed gear.
  • the gear ratio is set so that one rotation is made during one revolution of the fixed gear, and the drive shaft for the handle type pedal is engaged with the driving force transmission means provided on the adduction gear.
  • the invention described in claim 25 can drive the handle-type pedal with his / her own hand to extract the rotational force.
  • the means is driven, and the hand-type bicycle can be easily driven.
  • the rotating force extraction means is formed by a shaft drive system consisting of a bevel gear and a drive shaft instead of a winding link mechanism such as a chain or belt, play and slack in the winding link mechanism may occur. No, the hand force applied to the steering wheel pedal can be transmitted to the wheel of the hand-held bicycle without loss.
  • the invention according to claim 26 relates to the crank crank device for a vehicle according to claim 25, wherein the driving force transmitting means includes: a slider provided on a mounting shaft of the handle type pedal; A track guide portion is provided on the add-on gear and receives and guides the slider, and the slider is connected to the shaft of the add-on gear regardless of the position of the add-on gear. It is characterized in that it is guided at a position deviated from a line connecting the core and the axis of the crankshaft, and is located near the lowermost part of the track guiding part.
  • the mounting shaft of the handle-type pedal is engaged with a track guiding section having, for example, a curved shape, an elliptical shape, a polygonal shape, or a linear shape, and is always located near the lowermost position deviated in the track guiding portion. Therefore, the driving force is applied to the part (contact point) where the adduction gear and the fixed gear come into contact with each other as a fulcrum, and the driving force is located near the lowest point of the track guide where the handle-type pedal mounting shaft is located (engaged).
  • FIG. 1 is an external perspective view schematically showing an outline of a configuration of a mechanism of a bicycle crank device according to the present embodiment.
  • FIG. 2 is a front view showing a cross section of a part of the pedal crank device for a bicycle according to the present embodiment.
  • FIG. 3 is a left side view of FIG.
  • FIG. 4 is an enlarged side view of a main part of the part IV in FIG.
  • FIG. 5A and 5B are explanatory diagrams of the orbit guiding means.
  • FIG. 5A is a cross-sectional view taken along line VV in FIG. 4, and
  • FIG. 5B is an external perspective view of a pin portion.
  • FIG. 6 is an external perspective view for explaining assembly and disassembly in the pedal crank device of FIG.
  • FIG. 7 is an operation explanatory view illustrating a locus of movement of the pin portion while rolling from the vicinity of the top dead center to 195 degrees at intervals of 15 degrees.
  • FIG. 8 is an explanatory diagram of a main portion enlarged operation showing the relative positional relationship between the adduction gear, the fixed gear, and the pin portion near the top dead center.
  • FIG. 9 is an explanatory diagram of a main portion enlarged operation showing a relative positional relationship between the adduction gear, the fixed gear, and the pin near the bottom dead center.
  • FIG. 10 is an enlarged sectional view of a modified example of the trajectory guiding means.
  • FIG. 11 is a side view of a main part in another modified example of the track guiding means.
  • FIG. 12 is an operation explanatory view illustrating a movement locus of a pin portion of the adduction gear every 45 degrees according to the above another modification.
  • FIG. 13 is an operation explanatory diagram illustrating a continuation of the movement trajectory shown in FIG. 12 according to the above another modification.
  • FIG. 14 is an operation explanatory diagram illustrating a continuation of the movement trajectory shown in FIG. 13 according to the above another modification.
  • FIG. 15 is a schematic external perspective view of still another modification of the present embodiment.
  • FIG. 16 is a schematic plan view schematically showing still another modified example.
  • FIG. 1F is an external perspective view showing a fixed gear according to another modification of the above embodiment.
  • FIG. 18 is a front view showing a state in which a sprocket type internal gear is combined with the fixed gear of FIG.
  • FIG. 19 is a front view showing a modified example in which a chain-shaped adduction gear is combined with a sprocket-shaped fixed gear.
  • FIG. 20 is a schematic external perspective view of still another modified example of the above embodiment.
  • 1 is a fixing member (vehicle body), 1 a is a base plate, 2 is a bearing, 3 is a crankshaft, 4 is a crank arm, 4 L is a crank arm (on the left side), and 4 R is a (right side).
  • A) crank arm 5 is adduction gear, 5 L is adduction gear (on the left), 5 R is adduction gear (on the right), 6 is fixed gear, 6 L is fixed gear (on the left), 6 R Is the fixed gear (on the right), 7 is the driving sprocket, 8 is the driven sprocket, 9 is the chain, 10 is the pedal (input member), 10 L is the pedal (left), 1 OR is the pedal (right), 11 L is the (left) ⁇ dull shaft, 11 R is the (pedal) pedal shaft, 30 L is the (left) drive power transmission means, and 3 OR is the (right) drive power transmission means.
  • 3 L is the slider on the left, 31 R is the slider on the right, 32 L is the orbital guide on the left, 32 R is the orbital guide on the right.
  • L Is the guide groove (left side), 40 is the guide rail, 41 is the slider, 50 is the inclined groove, 51 is the track guide, 52 is the spring, 70 is the cover, 71 is the guide, 8 1 to 84 are bevel gears, 85 is a drive shaft, 90 is a hand cycle, 90 is a wheelchair, 90 is a hand cycle, 90 is a handle pedal, and 90 is a chain , 907 is a front wheel, L is a line connecting the axis P1 and the axis P2 of the crankshaft 3, P1 is the axis of the adduction gear, and P2 is the axis of the crankshaft.
  • FIG. 1 shows the configuration of the present embodiment.
  • FIG. 1 is an external perspective view showing an outline of a bicycle crank device as viewed obliquely from the front.
  • parts and members on the left side of the bicycle will be denoted by the letter L, and those on the right side by the letter R.
  • the driving sprocket 7 is shown on the L side in order to facilitate understanding of the configuration of the entire apparatus.
  • a crankshaft 3 is rotatably supported by a bearing portion 2 of a bicycle body (frame) 1.
  • the crankshaft 3 is bent on opposite left sides of the frame 1 in opposite directions in the same plane.
  • fixed gears 6L, 6R that match the adduction gears 5L, 5R are fixedly attached to both left and right sides of a longitudinal axis along the longitudinal direction of the bicycle.
  • a pedal 1 OL, 1 OR as an input member is rotatably provided on a mounting shaft 11 L, 11 R (hereinafter referred to as a “pedal shaft”), and is provided at a tip of the pedal shaft 11 L, 11 R. Sliders 11 L 1 and 11 R 1 are formed. On the side surfaces of the add-on gears 5 L, 5 R, there are provided orbital guiding portions 32 L, 32 R, which are one component of the driving force transmitting means 30 L, 30 R, and the sliders 31 L, 31 R are engaged. Combine.
  • a driving sprocket 7 (rotational force take-out means) is provided on the crankshaft 3 near the bearing portion 2 to take out the rotational force of the crankshaft so as to rotate integrally with the crankshaft 3.
  • a driven sprocket 8 is provided, and a chain 9 is wound between the sprockets 7 and 8, The driving force is transmitted to the driven sprocket 8 via the chain 9 by taking out the torque of the shaft. That is, when the chain 9 is driven in the direction indicated by the arrow A in FIG. 1, the bicycle is propelled forward and travels.
  • the structure of the crank device will be described more specifically. That is, as shown in FIGS. 2 to 6, a base plate 1a is fixedly attached to the bicycle frame 1, and a journal, that is, a bearing portion 2 is welded to a hole formed in the center portion thereof. , And the crankshaft 3 penetrates.
  • the crankshaft 3 is formed in a stepped shape.
  • crank arm 4L is fastened to the left side with a bolt 20 and a crank arm 4R is welded to the right side.
  • the left crank arm 4 may be welded by welding.
  • These left and right crank arms 4L and 4R bend and extend in opposite directions in the same plane.
  • Shaft members 51_1, 5R1 are fixed to the crank arms 4L, 4 so as to be oriented in the horizontal direction, and there is an internal gear having spur teeth through the space washers 5L2, 5R2. 5 L and adduction gear 5 R are rotatably mounted.
  • fixed gears 6L and 6R are arranged on the left and right sides of the base plate 1a in parallel with the base plate 1a.
  • the fixed gears 6 and 6 R are internal gears having spur teeth, and each of the four spacers 21 arranged on the left side and a base plate 1 a by inserting bolts 22 into 21 R. Fixed on both sides. Left and right adduction gears 5L, 5R are incorporated into these left fixed gears 6L, 6R so as to be inscribed and connected to each other.
  • the ratio of the number of teeth between the add-on gears 5 L, 5 R and the fixed gears 6 L, 6 R is such that the add-on gears 5 L, 5 R make a fixed gear 6, and make one revolution while rolling on the 6 R
  • the gear ratio is set to make one rotation, that is, the relationship is set to be 1: 2.
  • the driving force transmitting means 30 and 3 OR are provided on the sliders 31 L and 31 R formed on the pedal shafts 11 L and 11 R, and on the internal gears 5 L and 5 R.
  • the orbital guidance section 32 is formed by 32 and R.
  • the orbital guiding portions 32 L and 32 R are provided with adduction gears 5 by screws B and attached to the side surfaces of 5 R.
  • An elliptical guide groove 34 L (the right guide groove is not shown, so the reference numeral is omitted) is formed in the orbit guide portions 32 and 32 R, and the sliders 31 L and 31 are formed. R is slidably received.
  • the driving force applied to the pedals 1 OL and 10 R is formed so as to be transmitted to the add-on gears 5 L and 5 R via the slider 31 1 R and the guide groove 34 L.
  • the pedal 11 and 11R are at or near the top dead center, ie, the internal gears 5L and 5R are fixed to the fixed gear 6 and 6R.
  • the pedal shaft 11 L, "I 1 R is an add-on gear 5, and a line L substantially along the vertical direction connecting the axis of 5R and the axis of crankshaft 3 Is set to always be a position deviated rearward.
  • trajectory guiding section 32L on the left side as an example.
  • a first member 33 having an elliptical guide groove 34 L formed thereon, and a lid is attached to the first member 33 L via a screw 34 L.
  • the first member 33L and the second member 35L have a guide groove 34L formed therein.
  • the left track guiding section 32R is formed in the same manner.
  • the pedal 10 L which is an input member, is provided rotatably with respect to the mounting shaft 11, that is, the pedal shaft 11, and a pin-shaped slider 31 L is provided at the end of the pedal 11 L. And engage the guide groove 34L.
  • the slider 31 L is stuck in the guide groove 34 L of the adduction gear 5 L, the slider 31 L is always located at the lowermost position of the guide groove 34 L. At or near the point It will function as an input point when depressing and pedaling on a certain pedal 11L.
  • this offset direction is offset to the right of the line L in FIG. 3, that is, in the backward direction with respect to the traveling direction of the bicycle. Therefore, when the stepping force (operating force) of the foot acts on the pedal shaft 11 L in the state shown in FIG. 3 from top to bottom, the adduction gear 5 L and the fixed gear 6 L Where the contact point becomes the fulcrum of the lever, the distance between this contact point and the slider 31L becomes the length of the lever, and the lever acts to rotate the adduction gear 5L clockwise (rotation). ), The adduction gear 5 L rolls in the arrow X direction (counterclockwise) while engaging with the fixed gear 6.
  • the size depends on the change in length (length of lever arm) up to 1 L.
  • the pedal shaft 11 R of the right pedal 10 R also has the orbital gear 5 R on the orbit guide 3 with the same structure as the track guide 3 2 L. Engaged via 2R guide groove (not shown).
  • a driving sprocket 7 for taking out a rotational force is provided on the crank 3 between the base plate 1 a and the right fixed gear 6 L so as to be able to rotate integrally with the crank shaft 3, and a chain 9 (see FIG. 1) and is connected to the driven sprocket on the wheel side (reference numeral 8 in Fig. 1).
  • crank device is manufactured as shown in FIG. 2 by sequentially assembling the above-described components as shown in the exploded perspective view of FIG. Made.
  • reference numeral 23 denotes a push for press-fitting the shaft ends of the shaft members 5 L 1 and 5 R 1 to form the internal gears 5, and attaching 5 R to the shaft members 5 L 1 and 5 R 1.
  • the nuts are shown, and the driving sprocket is not shown.
  • FIG. Fig. 7 shows the sliders 31L and 31R provided at the shaft ends of the pedal shafts 11L and 11R, respectively, and the guide grooves 34L provided in the left and right internal rotation gears 5L and 5R.
  • FIG. 9 is an operation explanatory diagram illustrating a movement trajectory from near the top dead center to just after the bottom dead center. The solid line shows the movement trajectory of the left inner gear 5L, and the dotted line shows the movement trajectory of the slider 31R of the opposite inner gear 5R.
  • each of the internal gears 5 L and 5 R is a fixed gear 6, and regardless of the rolling position with respect to 6 R, each of the sliders 3 1 L and 3 R 1 R is positioned so that it is located at the lowest position with respect to guide groove 3 4 R and 3 4 R.
  • the left and right pedals reciprocating up and down 10 0 and 1 OR are alternately depressed and come in.Each addendum gear 5 and 5 R are each fixed gear by lever action.
  • the crank shaft 3 which is the output shaft, rotates, and its rotational driving force is transmitted from the driving sprocket to the driven sprocket 8 via the chain 9, By driving the vehicle, a propulsion force is generated and the vehicle can run forward.
  • the sliders 3 1 L and 3 1 of the pedal shafts 11 L and 11 R are attached.
  • the movement trajectory of R is at a position that does not become a conceivable point (dead point) when each of the internal gears 5L and 5R rolls at or near the top dead center.
  • the sliders 31L and 31R are present, and the sliders 31L and 31R reciprocate on a locus substantially along the vertical direction.
  • the wobbling of the bicycle which had been caused by shifting the weight to the pedal when pedaling as in the past, can be reduced, and the occurrence of wobbling can be suppressed.
  • the pedals 10 and 10 R can be smoothly and stably rotated on the driving sprocket 7 simply by reciprocating up and down. It can be transmitted dynamic, so that it is possible to reduce the driving force loss of the bicycle enabled.
  • crank device has been described as applied to a bicycle.
  • a bicycle a three-wheeled bicycle, a four-wheeled bicycle, a port for pedaling on water with a pedal crank device, and training.
  • Vehicle crank pedal devices used for various vehicles such as equipment and human-powered airplanes, and equipped with these crank devices and vehicle crank pedal devices, It is needless to say that the present invention can be appropriately applied to a vehicle in which the user steps down in the downward direction and steps forward.
  • the components (parts) shown in FIGS. 2 and 6 are formed and assembled by assembling these components. Needless to say, it can be configured to be composed of (parts).
  • the orbital guiding portions 32L and 32R are formed by the elliptical guide grooves 34 and the guide rails 40. Instead, they have a substantially linear shape or a curved shape. It may be configured in the form of one rail.
  • a guide groove having a substantially linear inclined groove 50 is formed, and the track guiding portion 51 having the inclined groove 50 is attached to the adduction gear 5.
  • the spring 52 is housed in the inclined groove 50 in a contracted state, and a spring force is applied so that the sliders 31 L and 31 R at the time of input are located near the bottom. Keep it.
  • the sliders 31L and 31R always keep the axis P1 of the internal gear 5 and the axis P2 of the crankshaft 3 regardless of the rolling position of the internal gear 5. Offset from the line L (the vertical centerline passing through the crankshaft 3) (See Figure 3).
  • the guide groove formed in the track guiding portion is not formed in a substantially linear shape as in the above-described modified example shown in FIG. 11, but is formed in a curved shape so as to draw a curve. Is also good.
  • the inclined groove 50 has a spring as a spring member.
  • the spring 52 may not be provided. Therefore, by adopting such a configuration, as shown in FIGS. 12 to 14, the sliders 31 L and 31 R are located near the lowermost portion of the inclined groove 50 of the track guiding means 51.
  • the internal gear 5 rolls together with the fixed gear 6 while remaining in the fixed position.
  • the internal gear 5 rotates (revolves) the fixed gear 6 in the counterclockwise direction, and also rotates itself in the clockwise direction, so that the sliders 3 1 L and 3 1 R
  • the robot moves from the top dead center to the bottom dead center by drawing a movement trajectory as shown in Figs.
  • a cover 70 covering the internal gear 5 L and the fixed gear 6 as shown by the two-dot chain line.
  • the cover 70 is attached to the fixed gear 6L side, but as a result, if it is provided so that pebbles and clothes do not enter the joint of the two gears 5L and 6L from the outside.
  • the cover 70 may be formed so as to be attached to a vehicle body such as a bicycle. Therefore, according to this modified example, it is possible to surely prevent injuries caused by clothes, stepping stones or the like entering the joint between the two gears 5L and 6L.
  • a guide 71 composed of two rod members arranged along the vertical direction is attached to the fixed gear 6, and a pedal as an input member is attached to the guide 71.
  • the mounting shaft (pedal shaft) of 1L can be defined so that the vertical reciprocation is defined. According to this modification, it is possible to prevent the pedal from detaching from the pedal by avoiding large movement (displacement) of the pedal due to sudden braking or the like, and the impact force applied to the pedal shaft 11 when the bicycle falls down Accordingly, it is possible to prevent a situation in which the teeth of the fixed gear 6 L and the adduction gear 5 L are cut off or a malfunction occurs in the engagement.
  • a slit having a guide function is provided in the force bar 70 itself so as to be oriented in the reciprocating direction, thereby guiding the pedal shaft 11 L in the vertical direction.
  • the rotational force extracting means is formed by a winding link mechanism in which a chain 9 is wound between a driving sprocket and a driven sprocket 8.
  • Fig. 16 schematically showing the device, it is possible to adopt a structure in which power is transmitted by a shaft drive system.
  • a bevel gear 8 1 is attached to the crankshaft 3 so as to be able to rotate integrally
  • a bevel gear 8 2 is provided in place of the driven wheel sprocket 8, and bevel gears are provided at both ends instead of the chain 9.
  • This is a structure in which a drive shaft 85 having 83 and 84 is provided.
  • the force described in the case where the fixed gears 6 L and 6 R formed by cutting the spur teeth are used as the fixed gears.
  • the fixed gears 6 shown in FIGS. 17 and 18 are used instead.
  • the engaging devices are provided on the left and right sides of a vehicle frame such as a bicycle in the same manner as in the above-described embodiment. However, for convenience, the engaging devices on either one side are represented below for convenience. It will be explained.
  • the fixed gear 60 is provided with a plurality of pin members 60b arranged between a pair of ring plate bases 60a as shown in FIG.
  • a pin member 61b protruding from one ring plate-like base 61a in a cantilever shape is provided and has a substantially chain function.
  • these pin members 6 O b may be formed as pin-shaped pins that rotate relative to the ring-shaped substrate section 60 a to reduce mechanical friction.
  • the adduction gear 5 that rotates while meshing with the inside of the fixed gear 60 or the fixed gear 61 can be formed in the form of a sprocket as shown in FIG.
  • the engagement device is constituted by the engagement of the chain configuration and the sprocket configuration, and it is possible to smoothly transmit the depressing force of the pedal similarly to the above embodiment. Become. In this case, it goes without saying that the chain may be directly attached to the fixed gear 60.
  • the engaging device is formed in the form of a chain 'and' sprocket, gravel or the like is trapped in the chain-sprocket configuration during traveling. Can be prevented, and safe running can be ensured.
  • Additive gears or fixed gears can be formed at low cost, and It is possible to obtain a crank device, a vehicle, and the like with a reduced weight.
  • the fixed gear is formed as a sprocket-shaped fixed gear 62 having sprocket teeth 62 a.
  • the add-on gear 63 in the form of a chain is provided with pin-shaped teeth 63 a that mesh with the sprocket teeth 62 a.
  • the chain may be provided directly on the adduction gear 63.
  • the engaging device is formed in the form of a chain 'and' sprocket, so that gravel or the like is trapped in the engaging portion of the chain form 'sprocket' during traveling.
  • the driving sprocket 7 as the rotating force extracting means has a circular shape, but an elliptical sprocket may be used instead. According to this modified example, the speed change when the pedal is depressed downward can be canceled to obtain an averaged speed, and a stable depressing operation feeling can be obtained.
  • crank device is incorporated in the normal type bicycle body (frame) 1 in which the pedal is pushed by the stepping force of the foot.
  • a hand type formed by detachably attaching the hand cycle unit 902 to the wheelchair unit 91 or by fixedly attaching the hand cycle unit 902. It can be built into the frame 903 of the cycle 900 and driven by hand or arm force. That is, in this modification, the crank arms on the left and right sides of the crankshaft have the same phase angle direction, that is, a symmetric arrangement.
  • the handle-type pedal 905 provided with the pedal function is driven by the left and right hands, the driving force is to rotate the internal gear and to obtain a rotational force extracting means such as a chain 906.
  • the front wheel 907 can be driven via the chain 906 to drive the hand cycle 900.
  • the occupant of the wheelchair unit 901 can easily operate the hand cycle 900 by simply operating the handle-type pedal 905 by hand.
  • the hand cycle can be easily operated even by elderly people with poor leg strength, disabled persons, etc. It has the effect of improving muscle training and physical strength.
  • the handle-type pedal 905 was provided symmetrically with respect to the main body of the hand cycle, and the left and right sides were simultaneously driven, but the handle-type pedal was provided on only one side. Needless to say, it is possible to drive the motor.
  • the internal gears provided on the pair of crank arms on both sides of the crank shaft rotatably provided on the bearing portion are engaged with the fixed gear and rolled.
  • the gear ratio is set so that the internal gear makes one revolution during one rotation of the fixed gear, and the driving force transmitted to the internal gear is set. Since the input member is engaged with the means, when the input member is pushed down from the vicinity of the top dead center to the vicinity of the bottom dead center (during input), the contact point between the adduction gear and the fixed gear becomes the fulcrum. Due to the action of the lever, a rotational moment is generated in the adduction gear.
  • the rotational force take-out means is formed by a shaft drive system consisting of a bevel gear and a drive shaft instead of a winding link mechanism such as a chain or a belt, play and slack of the winding link mechanism do not occur. Therefore, the rotational force applied to the pedal can be transmitted to the wheels without loss, and the effect of improving energy transmission efficiency can be obtained.
  • the driving force transmitting means includes the slider of the input member and the trajectory guiding section having, for example, a curved shape, an elliptical shape, a polygonal shape, and a linear shape.
  • the slider is always located near the lowermost part of the track guide.
  • the slider since the slider is located near the lowermost part of the track guide, for example, when the internal gear contacts the fixed gear at or near the top dead center, the slider is The axis of the gear and the axis of the crankshaft are arranged at a position deviated from the connection line, and the action of the lever with the part (contact point) where the adduction gear and the fixed gear come into contact with each other as a fulcrum is used as a fulcrum. As a result, a rotating moment acts on the internal gear, and the internal gear can be easily rolled, so that the crankshaft can be smoothly driven to rotate and the propulsion force can be given.
  • the slider of the input member is an ellipse, a polygon.
  • An adduction because it exists near the lowermost part of the track guide that is formed by a shape, a substantially linear or curved track, or an elliptical, polygonal, or substantially linear or curved rail
  • the leverage generates a rotational moment that constantly rolls the adduction gear smoothly.
  • the energy applied to the input member can be efficiently converted into a rotational motion to obtain a propulsion force.
  • a rail is formed by rails, it may be formed by one rail.
  • the slider since the track guiding portion with which the slider engages is formed by a substantially linear or curved inclined groove, the slider is located at the lowest position of the track guiding portion. This means that the internal gear is rolled, and the up-and-down motion of the input member can be efficiently converted into rotational motion.
  • the inclined groove is changed into a substantially linear or curved groove. Since it is formed, there is an effect that the structure of the track guiding portion can be simplified.
  • the slider since the slider is forcibly placed in the vicinity of the lowermost portion at the time of input by the spring member in the inclined groove, the rotation of the internal gear with respect to the fixed gear is arbitrary. Even in the moving position, the slider can be located near the bottom of the inclined groove, so that the internal gear can be reliably rolled, and the reciprocating motion of the input member in the vertical direction can be efficiently performed. This has the effect that the thrust can be obtained by converting the rotation into rotational motion.
  • the crank device can be mounted on a vehicle such as a bicycle.
  • the joint between the two gears prevents clothes and stepping stones from entering, and has the effect of avoiding injuries.
  • the guide member since the guide member regulates the reciprocating motion of the input member in the vertical direction, large movement (displacement) of the pedal due to sudden braking or the like can be avoided, so that the pedal can be moved from the pedal.
  • the crank device when the crank device is mounted on a vehicle such as a bicycle, the teeth of the fixed gear and the internal gear may be cut off due to the impact force received when the bicycle falls. This has the effect of avoiding a situation where the combined state is worsened.
  • the sprocket type internal gear is formed so as to mesh with the chain type or pin type fixed gear, so that the engagement between the sprocket and the chain is achieved. That is, the engagement between the adduction gear and the fixed gear is ensured, and the effect of avoiding loss of transmission efficiency of the driving force from the input member to the means for taking out the rotational force is achieved.
  • the chain-shaped or pin-shaped internal gear is formed so as to mesh with the sprocket-shaped fixed gear, so that the engagement between the chain and the sprocket is achieved. That is, the engagement between the internal gear and the fixed gear is assured, and when the driving force is taken out to the means for taking out the torque from the input member, the effect of avoiding a decrease in the transmission efficiency of the driving force can be avoided. Play.
  • the speed change when the pedal is depressed downward can be canceled to achieve an averaged speed, and the comfortable and stable depressing operation can be performed. An effect is obtained that a crank device having a feeling can be obtained.
  • crank device for a vehicle when the pair of left and right input members are alternately pucked (push-down motion), reciprocating motion is performed in a vertical direction in a state of little swing.
  • a vehicle crank pedal device capable of efficiently converting the operating force due to the reciprocating motion into the rotational motion force, and to provide a rotational force extracting means such as a chain
  • the shaft is formed by a shaft drive system consisting of a bevel gear and a drive shaft, instead of a winding link mechanism such as a tilting mechanism, play and slack of the winding link mechanism will not occur, and the rotational force applied to the pedal will be lost. It can be transmitted to the wheels without delay, which has the effect of improving energy transmission efficiency.
  • the portion (contact point) where the adduction gear and the fixed gear come into contact with each other as a fulcrum is used as the fulcrum, and the track guide portion in which the mounting shaft of the pedal is located (engaged) is located.
  • the track guide portion when the track guide portion is formed, for example, in the form of a groove rail, the groove or the rail is formed into an ellipse, a polygon, a substantially straight line, a curved line, or the like.
  • the slider provided on the mounting shaft of the pedal is located near the lowermost part of the track guide, so that when the internal gear rotates while engaging with the fixed gear, Even at such rotation angles, the internal gear can always be rolled smoothly by leverage, and the reciprocating motion of the pedal can be smoothly converted to rotary motion, which is equivalent to the conventional weight shift.
  • the accompanying motion has the effect of suppressing the wobble of the vehicle.
  • the slider of the input member since the slider of the input member is present near the lowermost part of the track guiding portion formed by the inclined groove having a substantially linear shape or a curved shape, the input member The effect is that the reciprocating motion in the up and down direction can be efficiently converted into rotational motion.
  • the sliding element is forcibly placed near the lowermost part at the time of input by the spring force of the spring member provided in the substantially linear or curved inclined groove. So that the pedal mounting axis, That is, regardless of the rolling position of the internal gear with respect to the fixed gear, the slider can be located near the lowermost portion of the inclined groove, so that the internal gear can be reliably rolled. Thus, the reciprocating motion of the input member in the vertical direction can be efficiently converted into a rotational motion to obtain a propulsive force.
  • the adduction gear and the fixed gear are entirely covered by the cover, when the vehicle is a bicycle or the like, the clothing is formed by the joint between the two gears. It is possible to prevent the sudden turning of the vehicle to be stopped, and to achieve safe driving.
  • the pedal mounting shaft is regulated to reciprocate in the vertical direction by the guide means, even if a large external force acts on the pedal due to a sudden brake or the like.
  • the pedal mounting axis moves (displaces) along the guide means to prevent the foot from being accidentally detached from the pedal.
  • the bicycle may fall over and the pedal may receive impact force.
  • the sprocket type internal gear is formed so as to mesh with the chain type or pin type fixed gear.
  • the internal gear in the h-shaped or pin form is formed so as to mesh with the fixed gear in the sprocket form. Engagement, that is, engagement between the adduction gear and the fixed gear is ensured, and the driving force input from the pedal mounting shaft to the track guiding portion has the effect of being able to be efficiently transmitted to the rotational force extracting means. Play.
  • the speed change when the pedal is depressed downward can be canceled to obtain an averaged speed, and there is an effect that a stable depressing operation feeling can be obtained.
  • the vehicle is provided with a crank device, whereby a pedal or the like is depressed downward and depressed forward.
  • a crank device whereby a pedal or the like is depressed downward and depressed forward.
  • the vehicle is provided with a vehicle crank pedal device, whereby the pedals and the like are depressed downwards and forwardly depressed.
  • the lever when the input member is pushed down from the vicinity of the top dead center to the vicinity of the bottom dead center, the lever acts with the contact point between the internal gear and the fixed gear as a fulcrum. Since a rotating moment is generated in the internal gear, the internal gear rolls to the fixed gear, and at the same time, the crankshaft rotates via the crank arm. This has the effect of being able to be removed.
  • the rotating force take-out means is formed by a shaft drive system consisting of a bevel gear and a drive shaft instead of a winding link mechanism such as a chain or belt, play and slack in the winding link mechanism may occur. As a result, the torque applied to the pedal can be transmitted to the wheels without loss.
  • the adduction gear is located at or near the top dead center with respect to the fixed gear.
  • the slider is disposed at a position deviated from the line connecting the axis of the internal gear and the axis of the crankshaft, and the part where the internal gear and the fixed gear come into contact with each other ( The contact point acts as a fulcrum to apply a rotational moment to the adduction gear, making it possible to easily roll the adduction gear, and to smoothly drive the crankshaft to apply propulsion. The effect that can be achieved.
  • the mounting shaft of the handle-type pedal is engaged with a track guiding section having, for example, a curved shape, an elliptical shape, a polygonal shape, or a linear shape, and is always located near the lowermost position deviated in the track guiding portion. For this reason, the part where the adduction gear and fixed gear come into contact with each other (contact point) is used as a fulcrum, and the handle-type pedal or the mounting shaft of a manual pedal installed at a location away from the handle remains (engagement).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

L'action sur les pédales d'un bicyclette pose un problème dans la mesure où la force à exercer sur les pédales augmente lorsque ces dernières se trouvent aux points morts haut et bas, ce qui rend le déplacement difficile. L'emploi des dispositifs de l'invention permet d'atténuer l'ampleur du déport du corps pendant la sollicitation des pédales, ce qui améliore la marche en ligne droite. SOLUTiONS : Lorsque l'un ou l'autre des pignons intérieurs (5L, 5R) se trouve au point mort haut ou près de ce dernier, les positions des arbres coulissants (31L, 31R) des élément d'entrée (pédales) (10L, 10R) sur les pignons intérieurs (5L, 5R) sont décalés l'un par rapport à l'autre de manière à ne pas se trouver toujours sur une même ligne (L) qui relie les centres de pignons intérieurs (5L, 5R) et le vilebrequin. Ainsi, les pédales (10L, 10R) sont déplacées alternativement dans le sens vertical, ce qui provoque un roulement des pignons intérieurs (5L, 5R) lorsqu'ils engrènent sur les pignons fixes (6L, 6R), l'engrènement s'effectuant par l'effort de levier sur les points morts qui sont en contact avec chaque pignon intérieur (5l, 5R) et le pignon fixe correspondant (6L, 6R). Par voie de conséquence, le mouvement alternatif dans le sens vertical des pédales est transformé en un mouvement rotatif d'entraînement des vilebrequins (3), de telle sorte que la force de rotation est déportée vers l'extérieur à partir d'un barbotin (7).
PCT/JP2004/005270 2003-04-14 2004-04-13 Dispositif a vilebrequin, pedalier et vehicule equipes de ces dispositifs Ceased WO2004092003A1 (fr)

Priority Applications (1)

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JP2005505412A JP4040653B2 (ja) 2003-04-14 2004-04-13 クランク装置、それを備えた乗り物用クランクペダル装置、及びそれらを備えた乗り物

Applications Claiming Priority (2)

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JP2003108869A JP2006159919A (ja) 2003-04-14 2003-04-14 クランク装置とそれを備えた乗り物用クランクペダル装置
JP2003-108869 2003-04-14

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RU2529089C1 (ru) * 2013-02-12 2014-09-27 Алексей Кузьмич Злобин Способ движения мускульного транспортного средства и мускульное транспортное средство для его осуществления
US10710673B2 (en) 2012-12-21 2020-07-14 Proto Fab Inc. Crankset and method for transfering power in a crankset
CN112437737A (zh) * 2018-07-18 2021-03-02 费利克斯·施密特 具有作用杠杆长度的周期性改变的曲柄传动装置
EP4686645A1 (fr) * 2024-07-30 2026-02-04 Valerio Armando Pédalier avec rotation relative des bras de manivelle

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KR100968689B1 (ko) * 2009-11-30 2010-07-06 이광원 인력 구동형 동력전달장치
KR101340734B1 (ko) * 2011-11-22 2013-12-12 김완진 자동무단변속기
JP6254494B2 (ja) * 2014-07-07 2017-12-27 ブリヂストンサイクル株式会社 モータ内蔵ハブ構造及び自転車
JP2025096896A (ja) * 2023-12-18 2025-06-30 株式会社アイシン 動力変換装置
JP2025110687A (ja) * 2024-01-16 2025-07-29 株式会社アイシン 動力変換装置、及びそれを備えた発電装置

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JPS5429457A (en) * 1977-08-03 1979-03-05 Shiyuuichi Masunaga Crank for bicycle
JPS6339099U (fr) * 1986-09-01 1988-03-14

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JPS5429457A (en) * 1977-08-03 1979-03-05 Shiyuuichi Masunaga Crank for bicycle
JPS6339099U (fr) * 1986-09-01 1988-03-14

Cited By (5)

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Publication number Priority date Publication date Assignee Title
US10710673B2 (en) 2012-12-21 2020-07-14 Proto Fab Inc. Crankset and method for transfering power in a crankset
RU2529089C1 (ru) * 2013-02-12 2014-09-27 Алексей Кузьмич Злобин Способ движения мускульного транспортного средства и мускульное транспортное средство для его осуществления
CN112437737A (zh) * 2018-07-18 2021-03-02 费利克斯·施密特 具有作用杠杆长度的周期性改变的曲柄传动装置
CN112437737B (zh) * 2018-07-18 2023-06-13 费利克斯·施密特 具有作用杠杆长度的周期性改变的曲柄传动装置
EP4686645A1 (fr) * 2024-07-30 2026-02-04 Valerio Armando Pédalier avec rotation relative des bras de manivelle

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