JPH0840340A - Motorcycle - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a motorcycle capable of arranging a large-capacity front carrier to improve loading capacity, securing a required cushion stroke and protecting wires around a steering wheel. [Structure] An under bracket 15 is formed in a substantially straight line shape in a vehicle width direction in a plan view, a recess for releasing wires is formed in a rear portion of the under bracket 25, and the front fork 9 is arranged behind a front axle. Then, the front fork 9 and the steering shaft 24 are arranged in a substantially straight line in a side view. According to the present invention, a large space is secured in front of the steering shaft 24, and the large-capacity front carrier 6 can be arranged in this large space, so that the loading capacity of the motorcycle can be improved. . Further, various wires are effectively protected by the recess formed in the under bracket 25. Further, since the front axle is offset in front of the front fork 9, it is possible to increase the length of the front fork 9 and secure a required cushion stroke.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scooter type motorcycle for business use.

[0002]

2. Description of the Related Art When a scooter-type motorcycle is dedicated to business, functional improvement in loading capacity is first required.

Therefore, it is conceivable to arrange a large-capacity carrier in front of and behind the vehicle body.

[0004]

However, in order to arrange a large-capacity front carrier especially in the front part of the vehicle body, it is required to secure a space for disposing the front carrier and a required cushion stroke. That is, in general, in a scooter type motorcycle, a front fork is provided below the front of the steering shaft, and the front axle is provided immediately below this front fork. Therefore, the space in front of the steering shaft is limited by the upper front fork. The lower end position of the front fork is limited by the front axle, and it is difficult to increase the cushion stroke corresponding to the increase in capacity of the front carrier and the increase in loading weight.

Therefore, it may be considered to change the relative positions of the steering shaft, the front fork and the front axle, but when these are rotated, interference with various wires around the steering becomes a problem.

The present invention has been made in view of the above circumstances. The object of the present invention is to arrange a large-capacity front carrier to improve the loading capacity, to secure a required cushion stroke, and to secure the necessary steering stroke. It is to provide a motorcycle capable of protecting wires.

[0007]

To achieve the above object, the present invention provides an under bracket which is connected to a lower end of a steering shaft and which fixes an upper end of a front fork, and which is substantially straight in a vehicle width direction in a plan view. Molded into
A recess for releasing wires is formed in the rear portion of the under bracket, the front fork is arranged rearward of the front axle, and the front fork and the steering shaft are arranged in a substantially straight line in a side view. To do.

[0008]

According to the present invention, a large space is secured above the front wheel in front of the steering shaft, and a large-capacity front carrier can be arranged in this large space, which is suitable for the motorcycle. The loading capacity can be secured.

Further, according to the present invention, since various wires around the steering wheel are made to escape through the recess formed in the rear portion of the under bracket to the inside of the vehicle body, these wires are effectively protected. The durability is improved. As a result, the front fork can be offset to the rear of the front axle, and the front fork and the steering shaft can be arranged in a substantially straight line in a side view, and the bending moment acting on the under bracket can be suppressed to be small. .

Further, according to the present invention, since the front axle is offset in front of the front fork, the length of the front fork can be increased to secure a large cushion stroke, and the riding comfort of the motorcycle can be improved. It is possible to improve.

[0011]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a side perspective view of a front portion of a motorcycle according to the present invention, FIG. 2 is a side view of the front portion of the motorcycle, and FIG. 3 is a cutaway front view of a front fork upper portion (underbracket portion) of the motorcycle. FIG. 4 is a plan view of the under bracket, FIG. 5 is a partial side view of the lower rear side of the front cover, and FIG.
Is a side view of the motorcycle according to the present invention, FIG. 7 is a plan view of the motorcycle, and FIG. 8 is a front view of the motorcycle.

First, a schematic structure of the motorcycle 1 according to the present invention will be described with reference to FIGS. 6 to 8.

The motorcycle 1 according to the present invention is a scooter type motorcycle for business use, and the front portion of the vehicle body is covered with a front cover 2 and the rear portion is covered with a side cover 3, and the entire vehicle body is covered with the motorcycle. The front and rear parts are supported by front wheels 4 and rear wheels 5 so that they can travel freely.

A basket-shaped front carrier 6 is mounted on the front cover 2, and the front cover 2 extends below the front carrier 6 toward the front of the vehicle body (to the left in FIG. 6). A headlight 7 is arranged at the center front end of the lower portion 2B, and flasher lamps 8 are arranged on both sides of the headlight 7 so as to bulge forward of the front cover lower portion 2B. The front wheel 4 is rotatably supported on the lower end portion of the front fork 9 extending below the front cover 2, and the upper portion of the front wheel 4 is at the upper portion of the front fender 10.
Is covered by.

A handle 11 connected to the front fork 9 is arranged above the front cover 2, and a central portion of the handle 11 excluding the left and right grips 12 is covered with a handle cover 13.

On the other hand, a seat 14 on which a rider should be seated is arranged in the upper center of the vehicle body, and a box-shaped rear carrier 16 is detachably mounted on a luggage carrier 15 provided behind the seat 14. It is installed. The hinge 1 attached to the front end surface of the rear carrier 16
7 is provided with an opening / closing cover 16a that rotates about 7 as a center. When the opening / closing cover 16a is fully opened, the front end surface of the opening / closing cover 16a abuts against the seat 14 and its opening is restricted, as shown by the chain line in FIG. It Incidentally, handle standings 18 are attached to both sides of the cargo bed 15.

The rear carrier 16 is arranged above the rear wheel 5, and the rear wheel 5 extends laterally from the rear end of the unit swing type power unit 19 (not shown). It is attached to the output shaft. The rear wheel 5
Is partially covered by the rear fender 20.

By the way, in this embodiment, three lateral grooves 21a are formed in parallel with each other in the front-rear direction at appropriate intervals on the footboard 21 on which the rider should put his / her feet. When the motorcycle 1 is parked by a side stand (not shown) that can be attached to the lower portion of 21, the lateral groove 21a is inclined because the vehicle body is inclined in the lateral direction, and rainwater and the like collected on the footboard 21 is inclined. It is discharged along the lateral groove 21a. In FIG. 6, reference numeral 22 denotes a parking stand having left and right legs, which has a so-called one-way structure in which it can freely rotate in the upright direction and is restricted from rotating in the opposite direction (that is, the storage direction). The rotation restriction in the storage direction is released by a foot lever (not shown). The parking stand 22 has both the front and rear wheels 4 and 5 grounded,
It can also be used as a side stand by grounding only one of the left and right legs.

By the way, as shown in FIG. 1, a head pipe 23 is housed in the front cover 2.
A steering shaft 24 is rotatably inserted in the head pipe 23. The steering wheel 24 has an upper end to which the handle 11 is attached, and a lower end to which an under bracket 25 that is long in the vehicle width direction is attached. This under bracket 25 is shown in FIG.
Further, as shown in FIG. 4, it is formed in a substantially straight line shape in the vehicle width direction in a plan view, and the upper ends of the pair of left and right front forks 9 are connected to both ends thereof by a plurality of bolts 26.

Further, as shown in FIG. 3, the front fender 10 made of resin is bonded to the lower surface of the under bracket 25 by a plurality of bolts 27, and the front fork 9 of the front fender 10 is inserted therethrough. The left and right holes 10a that are formed are lid members 2 integrally formed of resin.
Blocked by 8.

By the way, the front fender 10 is assembled from below the front fork 9. Here, the front fork 9 has a large diameter outer tube 9b below the inner tube 9a, and a bracket 9 for supporting the front axle 4a is provided at the lower end of the outer tube 9b.
Since c is provided, the hole 10a formed in the front fender 10 becomes large, and muddy water or the like wound up by the front wheel 4 may enter through the large hole 10a. Therefore, in this embodiment, as described above, the left and right holes 10 are formed.
A is covered with a lid member 28 integrally formed of resin.

As described above, in this embodiment, since the left and right holes 10a of the front fender 10 are closed by the lid member 28, which is an integrally molded product, the number of parts can be reduced and the assembling property can be improved. it can.

By the way, as shown in FIG.
In addition, a tubular portion 28a penetrating the left and right holes 10a of the front fender 10 and extending downward along the inner tube 9a of the front fork 9 is integrally formed.
Inner tube 9 of front fork 9 by 8a
By covering a, it is not necessary to attach the dust boot to the inner tube 9a, which also makes it possible to reduce the number of parts and improve the assemblability.

Further, in this embodiment, as shown in FIG. 4, wide and smoothly curved wire escape recesses 25a are formed in the rear portions of both sides of the under bracket 25, and these recesses 25a are formed. Various wires (a front wheel brake wire and a throttle wire) 50 arranged around the steering wheel are passed through. As shown in FIGS. 1 and 4, the wire 50 is routed through a hole 10b formed in the front fender 10, and these wires are installed inside a pipe stay 37 described later. It is held by the illustrated guide.

Thus, even when the handle 11 is turned to the left as shown in FIG. 4, the wire 50 is effectively protected by the guide function of the recess 25a formed in the under bracket 25, and its durability is improved. Improvement is achieved. As described above, since the recesses 25a are formed on both rear sides of the under bracket 25 so as to be wide and smoothly curved, stress concentration does not occur in the under bracket 25 and the under bracket 25 has insufficient strength. Never. Further, since the under bracket 25 and the hole 10b formed in the front fender 10 are close to each other and the recess 25a is formed so as to be curved smoothly, the recess 25a prevents the wire 50 from interfering with the body frame. Avoid and hold securely and guide.

By the way, in this embodiment, as shown in FIG. 1, the steering shaft 24 and the front fork 9 are arranged in a substantially straight line in a side view.
As shown in, the front fork 9 is located behind the front axle 4a. That is, since the front axle 4a is offset in front of the front fork 9, it is possible to increase the length of the front fork 9 to ensure a large cushion stroke and to improve the riding comfort of the motorcycle 1. it can.

Further, in the present embodiment, the front carrier 6 is arranged in a large space formed by the steering shaft 24 and the front wheels 4, and below the front carrier 6, lighting equipment such as a headlight 7 and a flasher lamp 8 is provided. Since the front carrier 6 is arranged, a large capacity can be secured in the front carrier 6 and the front carrier 6 can be secured.
You can load your luggage at a high price.

Here, the mounting structure of the front carrier 6 will be described.

As shown in FIG. 1, the head pipe 23
The front end of one down tube 29 extending obliquely downward toward the rear of the vehicle body is bonded to the bracket, and brackets 30, 31, and 32 are bonded from above. The bracket 30 has a pair of left and right nuts 34.
Are welded, and a bolt shaft 33 is bonded to each nut 34. A mounting bracket 40 is attached to the tip of each bolt shaft 33 by a nut 41. A hook 35 located on the front side of the rider is attached to the bracket 31.

On the other hand, a rear end of a pair of left and right pipe stays 37 is attached to a bracket 36 fixed to the front end of the down tube 29.
7 extends diagonally upward while expanding forward,
A support stay 38 is installed between the front end portions.
The pipe stay 37 and the support stay 38 are integrated into a unit.

The support stay 38 is also supported by the head pipe 23 via the bracket 32. That is, a bolt (not shown) is provided on the front end of the bracket 32 so as to project forward, and the support stay 38 is attached to the bracket 32 by inserting the support stay 38 into this bolt and tightening a nut (not shown). ing. Then, nuts (not shown) are welded to the left and right of the support stay 38, and bolts 43 are screwed to the nuts. The bolts 43 attach the mounting bracket 42 to the support stay 38 with the collar 39 interposed therebetween. ing.

Thus, a large space is secured in front of the front cover 2, and the front carrier 6 is arranged in this large space. That is, the front carrier 6
Is assembled by attaching its rear surface portion to the pair of left and right mounting brackets 40 and binding the left and right portions of the bottom surface portion to the pair of mounting brackets 42.

As described above, in this embodiment, since the front carrier 6 is arranged in the wide space formed in front of the steering shaft 24, a large capacity carrier can be used as the front carrier 6. Therefore,
Since the loading capacity of the motorcycle 1 is enhanced, the motorcycle 1 can sufficiently exhibit its business function.

Further, the front carrier 6 includes a wide support stay 38, a pipe stay 37 and brackets 36, 32 ,.
Since it is supported by the head pipe 23 and the down tube 29 via 30, it is possible to store and carry a heavy object, and not only the loading capacity of the motorcycle 1,
A high loading capacity is secured in terms of loading weight.

By the way, in this embodiment, as shown in FIG. 2, the handle cover 13 has a recessed portion 13a which is open forward in a side view in the lower portion of the front surface thereof. Since it is widely received by the handle cover 13 and flows smoothly to both sides along the recess 13a, the straightening effect of the handle cover 13 is enhanced and the running resistance of the motorcycle 1 is suppressed to a small level.

Further, in the present embodiment, as shown in FIG. 5, laterally open recesses 2a are formed on the left and right of the lower rear portion of the front cover 2 which stands obliquely in front of the footboard 21. As a result, a sufficient space for the rider's feet can be secured and the rider can easily get on and off.

[0038]

As is apparent from the above description, according to the present invention, the under bracket which is connected to the lower end of the steering shaft and which fixes the upper end of the front fork is substantially straight in the vehicle width direction in plan view. To form a recess for escaping wires in the rear part of the under bracket, the front fork is arranged rearward of the front axle, and the front fork and the steering shaft are arranged in a substantially straight line in a side view. In addition to arranging a large-capacity front carrier to improve the loading capacity of the motorcycle, it is possible to secure the required cushion stroke and protect the wires around the steering wheel.

[Brief description of drawings]

FIG. 1 is a side perspective view of a front portion of a motorcycle according to the present invention.

FIG. 2 is a side view of the front portion of the motorcycle according to the present invention.

FIG. 3 is a cutaway front view of a front fork upper portion (underbracket portion) of the motorcycle according to the present invention.

FIG. 4 is a plan view of an under bracket of the motorcycle according to the present invention.

FIG. 5 is a partial side view of a lower leg shield of the motorcycle according to the present invention.

FIG. 6 is a side view of the motorcycle according to the present invention.

FIG. 7 is a plan view of the motorcycle according to the present invention.

FIG. 8 is a front view of the motorcycle according to the present invention.

FIG. 9 is a cutaway front view of a front fork upper portion (underbracket portion) of a motorcycle showing a modified embodiment of the present invention.

[Explanation of symbols]

 1 Motorcycle 4 Front Wheel 4a Front Axle 9 Front Fork 24 Steering Shaft 25 Under Bracket 25a Recess for Relieving Wires

Claims (1)

[Claims] 1. An under bracket which is connected to a lower end of a steering shaft and which fixes an upper end of a front fork is formed into a substantially straight line shape in a vehicle width direction in a plan view,
A recess for releasing wires is formed in the rear portion of the under bracket, the front fork is arranged rearward of the front axle, and the front fork and the steering shaft are arranged in a substantially straight line in a side view. Motorcycle to do.