JPH034634Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a shock absorber for motorcycles, and the reservoir tank of the shock absorber is provided in a part of the swing arm to increase the volume and improve heat dissipation. It is something.

In motorcycles, shock absorbers are interposed between the wheels and the vehicle body to absorb shocks received by the wheels from the road surface. By the way, among these shock absorbers, those for the rear wheels of motorcycles with large wheel vertical strokes cannot provide sufficient cushioning effect within the volume of the shock absorber itself, so they are made separately from the shock absorber. Some devices have a reservoir tank installed in the tank and connect the reservoir tank with a hose to secure a large overall volume and obtain the desired buffering effect.

In this type of motorcycle, the problem is where to place the reservoir tank on the vehicle body, and in motorcycles where component parts are densely arranged in a narrow space, it is necessary to have sufficient volume and heat dissipation. There were difficulties in obtaining this.

The present invention was developed in view of this point, and consists of connecting two left and right arms extending in the longitudinal direction of the vehicle body with a connecting arm extending in the width direction of the vehicle body.
In a motorcycle that is provided with a swing arm formed in a substantially H-shape and that supports a rear wheel on a vehicle body by the swing arm, a connecting arm of the swing arm is hollow and formed as a reservoir tank; In addition, the above-mentioned conventional problems are solved by connecting the inside of the shock absorber.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings. 1 is a swing arm of a motorcycle;
Two left and right arms 2, 2 extending in the front and back direction of the vehicle body
are connected by a reservoir tank 3, which will be described later,
It is formed into an H-shape in plan. The swing arm 1 is pivotally connected to the lower part of a vehicle body frame (not shown) by a shaft inserted through a hole 4 at the front end, and rotates about this portion. Holes 5, 5 are provided at the rear ends of the left and right arms 2, 2 of the swing arm 1, and an axle (not shown) that spans between the holes 5, 5 allows the rear wheel (not shown) to Supported.

The swing arm 1 is formed into a substantially H-shape by connecting two left and right arms 2, 2 extending in the longitudinal direction of the vehicle body with a connecting arm extending in the width direction of the vehicle body. and the connecting arm is hollowed out,
It is formed in the reservoir tank 3. This reservoir tank 3 has a connection port 6 and an air check valve 7.
is provided. A bracket 8 is attached to the front of the reservoir tank 3, and the lower end of the shock absorber 9 is attached to the shaft 10.
It is pivoted by. The upper end of the shock absorber 9 is pivotally connected to the upper part of the vehicle body frame (not shown). A hose 11 is connected between the lower end of the shock absorber 9 and the connection port 6 of the reservoir tank 3, so that the reservoir tank 3 is communicated with the inside of the shock absorber 9.

With this device configured in this way, the space required for the connecting arm, which was conventionally provided only for connecting the left and right arms, can be effectively utilized, and the volume of the reservoir tank can be made sufficiently large. In addition, because the heat capacity is large and the reservoir tank 3 extends in the width direction of the vehicle body, heat dissipation performance is improved by receiving airflow from the front while driving. effect can be obtained. In addition, by providing the reservoir tank near the shock absorber,
Since the hose that connects this can be shortened, it is also advantageous in terms of cost. Since the connecting arm is located in a place that is difficult to see from the outside, there is also the advantage that there are no design restrictions even if the shape is designed to provide sufficient capacity as a reservoir tank.

[Brief explanation of the drawing]

The figure is a perspective view of one embodiment of the present invention. 1... Swing arm, 3... Reservoir tank, 6... Connection port, 9... Shock absorber,
11...Hose.

Claims (1)

[Scope of utility model registration request] Two left and right arms extending in the longitudinal direction of the vehicle body are connected by a connecting arm extending in the width direction of the vehicle body to provide a swing arm formed in an approximately H-shape, and the rear wheel is supported on the vehicle body by the swing arm. In the motorcycle, the connecting arm of the swing arm is hollow and formed into a reservoir tank,
A shock absorber for a motorcycle, characterized in that the inside of a shock absorber is connected to the reservoir tank.