JPH028877Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a rear brake device for a vehicle.

(Prior Art) In vehicles such as motorcycles and tricycles, a brake pedal is generally arranged facing forward of the right-hand step, and a master cylinder for braking the rear wheels is arranged near the brake pedal. An arm that swings together with the brake pedal is connected to a push rod for pressing the piston of the master cylinder, and the master cylinder is actuated by depressing the brake pedal.

The arm and push rod are connected by clamping the arm and push rod with bolts and nuts.

(Problem to be solved by the invention) Therefore, in the conventional rear brake device, each time the brake pedal is attached or removed, it is necessary to operate bolts and nuts to attach or remove the arm and push rod. It is not possible to attach and detach the pedal easily and quickly, which is particularly inconvenient for racer type motorcycles.

The present invention has been devised to solve the above-mentioned problems, and an object of the present invention is to provide a rear brake device that allows a brake pedal to be easily and quickly attached and removed.

(Means for solving the problem) In order to achieve the above object, the present invention
3. An engagement groove 61 is provided on one side of the push rod 58 that is open in the width direction of the vehicle and is elongated in a direction intersecting the longitudinal direction of the push rod 58, and an engagement groove 61 that is slidably incorporated in the engagement groove 61 is provided on the other side. It is characterized in that a joint portion 71 is provided, and the arm 43 and the push rod 58 are connected via the engaging groove 61 and the engaging portion 71.

(Function) When installing or removing the brake pedal 35, the arm 43 and the push rod 58 can be connected or disconnected by inserting or removing the engaging portion 71 into the engaging groove 61. Work can be done easily and quickly.

(Embodiment) Hereinafter, a case will be described in which a preferred embodiment of the present invention is applied to a rear brake device of a motorcycle.

FIG. 1 is a side view of the motorcycle, FIG. 2 is a side view of a brake pedal portion, and FIG. 3 is a sectional view of the same.

1 is a motorcycle, 2 is a body frame, 3 is a front wheel, and 4 is a rear wheel.The body frame 2 is equipped with a head pipe 5 at the front end, and the front wheel 3 is connected via left and right front forks 11, 11, a head pipe 5, a handle 12, etc. A rear fork 1 is supported so as to be freely steerable, and the rear wheel 4 is pivotally supported on the vehicle body frame 2 via a support shaft 13.
Supported by 4.

The vehicle body frame 2 includes a main frame 16 extending diagonally rearward from the top of the head pipe 5, and a center frame 17 extending downward from the rear end of the main frame 16. The engine 18 is disposed through the main frame 16 and the center frame 17. established,
The engine power drives the rear wheels 4 via a chain. An upper radiator 21 and a lower radiator 22 are arranged in front of the engine 18, and in the figure, 23 is a cowl, 24 is a fuel tank, 25 is a seat, and 26 is a cowl.
27 indicates a buffer, and 27 indicates an exhaust pipe.

A bolt 3 is installed at the bottom of the center frame 17.
1 and 32, and a step 34, a brake pedal 35 for braking the rear wheels, and a master cylinder 36 for braking the rear wheels are disposed through the bracket 33.

The step 34 includes a cylindrical base 34a,
The step 34 is a bolt 4 inserted through the base 34a.
1, attach it to the bracket 33.

A cylindrical base 35a of a brake pedal 35 is fitted into the base 34a, and both bases 34a, 35a
Brake pedal 35 with a bush 42 interposed therebetween.
is incorporated in a swingable manner, and an arm 43 is provided rearwardly protruding from the base 35a.

The master cylinder 36 is vertically arranged above the arm 43 via bolts 52 and 53, a brake hose 55 is connected to the upper part of the cylinder body 54, and a rod guide 5 of a required length is connected to the lower part of the cylinder body 54.
6, and insert the push rod 58 for pressing the piston 57 through the rod guide 56. An engagement groove 61 is provided at the lower end of the push rod 58 and is elongated in a direction substantially perpendicular to the longitudinal direction of the push rod 58 and is open toward the outside of the vehicle.
is formed in a connecting member 63 attached to the lower end of the push rod 58 via a nut 62 so that its length can be freely adjusted.

An engaging portion 71 provided at the tip of the arm 43 is slidably engaged with the engaging groove 61. In the embodiment, a bearing 7 is assembled to the tip of an arm 71 via a bolt 72, a collar 73, and a nut 74.
5 constitutes the engaging portion 71.

In this embodiment, since the configuration is as described above, the brake pedal 35 can be attached by operating the bolt 41,
At the time of removal, the connection and release from the push rod 58 can be achieved by inserting and removing the bearing 75 into the engagement groove 61, so that the work of installing and removing the brake pedal 35 can be performed easily and quickly.

(Effect of the invention) As is clear from the above explanation, according to the invention,
In a rear brake device that operates a master cylinder for rear wheel braking via an arm and push rod when the brake pedal is depressed, the brake pedal can be installed and removed easily and quickly, and is particularly suitable for use in racer type motorcycles. It is.

[Brief explanation of the drawing]

FIG. 1 is a side view of the motorcycle, FIG. 2 is a side view of a brake pedal portion, and FIG. 3 is a sectional view of the same. In addition, in the drawing, 1 is a motorcycle, 3 is a front wheel, 4 is a rear wheel, 17 is a center frame, 33 is a bracket, 34 is a step, 35 is a brake pedal, 3
6 is a master cylinder, 43 is an arm, 58 is a push rod, 61 is an engagement groove, and 71 is an engagement portion.

Claims (1)

[Scope of utility model registration request] A rear brake device comprising an arm that swings together with a brake pedal and a push rod for pressing a piston of a master cylinder for rear wheel braking, and the master cylinder is actuated via the arm and the push rod when the brake pedal is depressed. In this case, one of the arm and the push rod is provided with an engagement groove that is open in the width direction of the vehicle and is elongated in a direction intersecting the longitudinal direction of the push rod, and the other is provided with an engagement groove that is slidably incorporated in the engagement groove. 1. A rear brake device characterized in that a coupling part is provided, and the arm and the push rod are connected through the engagement groove and the engagement part.