JPH11301566A - Brake pedal unit of saddle ride type vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a simply assembled and less expensive brake pedal unit for a motorcycle, which can be made of the light alloy forge, by installing a hook plate which is provided separately for hooking a return spring of the return spring of the brake pedal by the side of the brake pedal. SOLUTION: In this brake pedal unit, a footrest is installed on the top. A rear portion of a brake pedal 3 is axially adhered to a footrest axis for adhering by tightening the base end to a footrest bracket 1. A rear end of a brake pedal 3 is connected to a brake rod 6 with an axial pin 5. Further, a hook plate 11 is axially adhered to a footrest axis 4 and an axial pin 5 so that it can rotate integrally with the brake pedal 3. A spring 12 is hooked by returning it to the front end of the hook plate 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a brake pedal device for a saddle type vehicle such as a motorcycle.

2. Description of the Related Art A motorcycle is operated by placing left and right feet on a footrest provided to protrude outward at the lower left and right sides of a vehicle body. A brake pedal is provided on the front side of the footrest on the right foot side. When the brake pedal is depressed and rotated with a toe, the brake of the rear wheel works.

In general, brake pedals are made of a steel plate press or the like. However, large motorcycles sometimes use brake pedals forged with a light alloy in order to reduce the weight and upgrade the quality.

[0004]

When a brake pedal is to be made of a light alloy forging, it is difficult to integrally form a projection-like stay or the like by forging as compared with a sheet metal welded structure. Due to the shape limitation, it is difficult to integrally form the locking projection of the return spring with the brake pedal.

In view of the foregoing, the present invention provides a separate hook plate for hooking a return spring of a brake pedal, which is arranged side by side with the brake pedal, and the brake pedal can be made of a light alloy forging, which is easy and inexpensive to assemble. It is an object of the present invention to obtain a brake pedal device for a saddle-riding type vehicle that can be used.

[0006]

In order to achieve the above object, a brake pedal device for a saddle-ride type vehicle according to the present invention is provided.
The footrest is attached to the front end, the rear end of the brake pedal is mounted on the footrest shaft for fastening the base end to the footrest bracket, and the rear end of the brake pedal is connected to the brake rod with the shaft pin. The hook plate is attached to the footrest shaft and the shaft pin so that the hook plate can rotate integrally with the brake pedal, and the return spring is hooked to the front end of the hook plate.

According to the present invention, when the tip of the brake pedal is depressed and rotated about the footrest axis,
The brake rod is pushed up, the hydraulic pressure of the master cylinder is applied to the rear wheel brake, and the rear wheel is braked. The footrest shaft for mounting the footrest also serves as a support shaft for the brake pedal, so the structure can be simplified.

The hook plate for hooking the return spring is aligned with the brake pedal, and is attached to the footrest shaft and the shaft pin, so that a component for mounting the hook plate is unnecessary. The hook plate rotates together with the brake pedal, and when the stepping force is released after the brake pedal is stepped down, the brake pedal can be returned to the home position by the elasticity of the return spring.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 3 are detailed views of a brake pedal device of a motorcycle, and FIG. 4 is an overall side view of the motorcycle.

As shown in FIGS. 1 to 4, in a motorcycle, a footrest bracket 1 is formed of a light alloy or the like, and is fastened to a rear portion of a pivot shaft 22 of a lower portion 2 of a frame 2 using a bolt or the like.・ Fixed. The brake pedal 3 is formed by forging using a light alloy such as an aluminum alloy, and has a rear portion mounted on a footrest shaft 4. The rear end of the brake pedal 3 is attached to a brake rod 6 with a shaft pin 5, and the brake pedal 3 can rotate about a footrest shaft 4.

The brake rod 6 is inserted into the master cylinder 7 of the brake, and when pushed up, generates a hydraulic pressure to brake the rear wheel 8. Master cylinder 7
Are fastened to the rear end of the footrest bracket 1 using bolts. A base end of the footrest 9 is attached to a distal end of the footrest shaft 4 by a support shaft 10 so that the footrest 9 can rotate only upward.

The hook plate 11 is connected to the footrest shaft 4.
And the rear end 11b is passed through the shaft pin 5 to be mounted on the brake rod 6, so that the rear end 11b can rotate integrally with the brake pedal 3. Then, the lower end of the return spring 12 is hooked on the distal end 11a of the hook plate 11 bent into a substantially L-shape in plan view. Return spring 12
Is fixed to the pin 13 fixed to the footrest 1 with a predetermined tension.

In the motorcycle of the embodiment, the front portion 2a of the frame 2 extends slightly obliquely upward, and a head pipe 14 is provided at the front end.
A front fork 16 that supports cushioning 5 is pivotably supported. The frame front part 2a also serves as a tank rail, and a fuel tank 17 is mounted on the upper part of the front part. An engine (not shown) is mounted below the front part 2a of the frame. Cowling 1 covering the engine from the top of the front fork 16
8, the aerodynamic characteristics are improved.

A seat 19 and a rear fender 20 are provided in the frame rear portion 2b behind the fuel tank 17. The rear wheel 8 is pivotally supported at the rear end of the swing arm 21, and the front end of the swing arm 21 is pivotally supported at the lower part of the frame 2 by a pivot shaft 22.

In the motorcycle brake device of the embodiment, when the tip of the brake pedal 3 is stepped down against the return spring 12, the brake pedal 3 is rotated to push up the brake rod 6, and the hydraulic pressure of the master cylinder 7 is shown in the figure. A brake (not shown) of the rear wheel 8 (a disc brake caliper, etc.) is braked through a brake hose that is not used. When the depression of the brake pedal 3 is stopped, the brake pedal 3 returns to the home position by the return spring 12. Brake pedal 3
Is mounted on the footrest shaft 4, so that it is not necessary to provide a separate mounting shaft, and the shape near the footrest bracket 1 can be simplified.

The hook plate 11 is used for the brake pedal 3.
, And the footrest shaft 4 and the shaft pin 5 are attached to each other.
No special parts are required to attach the hook plate 11, and the hook plate 11 can be manufactured at low cost. Since the hook plate 11 rotates integrally with the brake pedal 3, the hook plate 1
The brake pedal 3 can be returned by locking the return spring 12 to 1. Since the brake pedal 3 does not need to be provided with a projection or the like for hooking the return spring 12, the forged shape can be made good.

In the embodiment, a motorcycle is shown as an example of a saddle-ride type vehicle. However, the present invention can be appropriately modified to other types of saddle-ride type vehicles.

[0018]

As described above, since the present invention is constructed as described above, the brake pedal is mounted on the footrest shaft. Therefore, a dedicated mounting shaft for the brake pedal is not required, and the structure can be inexpensive. Can also be done easily. Further, since the return spring is hooked on a hook plate juxtaposed with the brake pedal, the shape of the brake pedal is simplified, the fork can be forged with a light alloy, and the weight can be reduced. Further, since the hook plate is mounted on the footrest shaft and the shaft pin, mounting parts can be omitted, the cost can be reduced, and the assembling work can be facilitated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a motorcycle brake pedal device according to an embodiment of the present invention.

FIG. 2 is a side view showing the brake pedal device of FIG.

FIG. 3 is a perspective view of a footrest portion of the brake pedal device of FIG. 1;

FIG. 4 is a side view showing the entire motorcycle according to the embodiment.

[Explanation of symbols]

 Reference Signs List 1 footrest bracket 3 brake pedal 4 footrest shaft 5 axis pin 6 brake rod 9 footrest 11 hook plate 12 return spring

Claims (2)

[Claims] 1. A footrest is attached to a front end, a rear portion of a brake pedal is mounted on a footrest shaft for fastening a base end to a footrest bracket, and a rear end of the brake pedal is connected to a brake rod by a shaft pin. A brake pedal device for a saddle type vehicle. 2. The hook plate according to claim 1, wherein the hook plate is attached to the footrest shaft and the shaft pin so that the hook plate can be rotated integrally with the brake pedal, and a return spring is hooked on the front end of the hook plate. 6. A brake pedal device for a saddle-ride type vehicle according to item 1.