JPS6221673B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a brake pedal mounting structure for a motorcycle having a split type body frame.

The present applicant has previously provided a frame structure for a motorcycle in which one of the left and right down tubes is separable from the body frame.

According to such a split type vehicle body frame, one of the left and right down tubes can be removed from the frame body, which is advantageous for maintenance such as installing and removing the engine unit.

The present invention was accomplished with the aim of reducing the number of fasteners required for mounting a brake pedal and simplifying the mounting work by commonly fastening the brake pedal holder together with the down tube to the frame body. .

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic side view of the motorcycle, FIG. 2 is an enlarged perspective view of the vehicle body frame, and FIG. 3 is an exploded perspective view of essential parts according to the present invention.

A front fork 20 is supported on a head tube 2 forming the tip of the body frame 1 via a steering stem 19 so as to be freely steerable, a front wheel 21 is supported at the lower end of the front fork 20, and a A handle 22 is fixedly installed.

The vehicle body frame 1 includes a head tube 2, two down tubes 3, 3 extending downward from the lower part of the head tube 2 and slanting backward, and a down tube blower extending rearward in left and right parallel from the lower ends of the down tubes 3, 3. 4, 4, a center frame 5, 5 which is tilted forward from the rear end of the down tube blower 4, 4, and a center frame 5, 5 which extends forward in left and right parallel from the upper end of the center frame 5, 5, and whose tip is connected to the down tube 3. , 3, upper part tubes 6, 6, a main tube 8 connecting the main cross plate 7 and the upper part of the head tube 2, installed between the central parts of the upper part tubes 6, 6, and further upper part tubes 6, 6. A rear frame 9 that also serves as a seat rail extends rearward from the rear in parallel to the left and right,
9, and a subframe 10 that connects the center part of the rear frames 9, 9 and the lower part of the center frames 5, 5.
10, and the left and right sides are connected by a cross member 11.

Main Chiyubu 8 and Atsuba Chiyubu 6,6
A fuel tank 23 is installed over the top of the fuel tank 23, and a space below the fuel tank 23 and surrounded by the down tube 3, the down tube blower 4, and the center frame 5 when viewed from the side houses an engine such as a horizontal V-type engine. A unit 24 is mounted, and a seat 25 for seating a passenger is placed on the rear frames 9,9.

On the other hand, a rear fork 26 (a drive shaft is installed inside the inner left member) is pivotally supported between the lower parts of the center frames 5, 5, and a rear wheel 27 is supported at the rear end of the rear fork 26. A rear action unit 28 is installed between the rear fork 26 and the rear frame 9.

As described above, the body frame 1 of the motorcycle is configured to be divisible as described below.

That is, the divided tube 13 extending continuously from the lower half of the down tube 3 on the right side to the front half of the down tube blower 4 is made detachable from the frame body 12.

An inwardly inclined surface 131 is formed at the rear end of the divided tube 13, and two holes 132, 132, front and rear, are bored in the inclined surface 131.

A sloped surface (not shown in the figure) that matches the sloped surface 131 of the rear end of the divided tube 13 is formed on the right side down tube blower rear end 41 on the frame body 12 side, and the slope extends outward from the sloped surface. Two mounting bolts 42, 42, front and rear, are provided protruding toward the right side down tube blower, and the bolts 42, 42 are integrated with the rear end portion 41 of the right down tube blower by being embedded in an inclined surface or the like.

Then, the rear end of the split tube 13 is inserted and supported from the side by the bolts 42, 42 through the holes 132, 132, and nuts 43, 43 are tightened from the side to the bolts 42, 42, respectively. Split tube 1
3 to the frame body 12. Note that the bolts 42, 42 and the nuts 43, 43 constitute a fastener.

Note that holes 133, 1 are provided at the front end of the split tube 13.
33 is formed, and bolts 32, 32 are embedded and protrude also in the upper half portion 31 of the right down tube on the frame body 12 side.

By the way, between the left and right down tube blower rear ends 41, 41 of the frame body 12, there is a thin cross pipe 5 made of high tension material such as high tensile steel.
A main stand 60 is pivotally supported between brackets 51, 51 fixed to this cross pipe 50.

In the present invention, in addition to connecting the split tube 13 to the frame body 12, the holder 80 of the brake pedal 70 is also connected using a common binding tool.

The brake pedal holder 80 is made of a plate material having a substantially triangular shape on the side, and has two mounting holes 82, 82 in the front and the rear at the bottom of the triangle, and a boss 71 of the brake pedal 70 at the top corner. A pedal mounting portion 81 for pivotally supporting the pedal is formed.

Then, the brake pedal holders 80, 80 are inserted and supported from the side through the mounting holes 82, 82 to the bolts 42, 42, which insert and support the rear end of the split tube 13 through the holes 132, 132, and the nuts 43 , 43 to the ends of the bolts 42, 42, respectively.

The boss portion 71 of the brake pedal 70 is pivotally attached to the pedal attachment portion 81 of the holder 80, and the brake pedal 70 is thus disposed at the rear lower portion of the right side of the vehicle body frame 1.

The brake pedal 70 may be previously connected to the holder 80, and the holder 80 may be commonly connected to the frame body 12 together with the split tube 13 as described above.

As described above, according to the present invention, since the brake pedal holder is commonly connected to the down tube, which is a divided tube, no special binding device is required, and the number of binding devices can be reduced. Therefore, the installation work can be done easily.

Furthermore, the divided down tube and the separate holder that pivotally holds the brake pedal are removably fixed to the vehicle frame, so when disassembling and reassembling the brake pedal and holder, it is difficult to separate the down tube from the down tube. It can be handled separately and work can be done without having to remove the connecting rod and cable connected to the brake pedal each time.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a schematic side view of a motorcycle, FIG. 2 is an enlarged perspective view of a vehicle body frame, and FIG. 3 is an exploded perspective view of essential parts according to the present invention. be. In the drawing, 1 is a vehicle body frame, 13 is a divisible down tube, 70 is a brake pedal, and 80 is a holder thereof.

Claims (1)

[Claims] 1. In a motorcycle in which one of the left and right down tubes is separable from the body frame,
A brake pedal mounting structure, characterized in that the down tube divided from the vehicle body frame and a holder for pivotally supporting the brake pedal are connected by a common fastener that removably fixes them to the vehicle body frame.