JPH10273085A - Motorcycle frame - Google Patents

Abstract

(57) [Problem] To provide a motorcycle frame which forms the appearance of an American-style rigid frame and further includes a shock absorber. A rear arm (2) that forms an appearance of an integrated rigid frame when combined with a frame body (1) is provided.
A damper 3 made of a rubber-like elastic material is provided between a rear end of the frame main body 1 and a front end of the rear arm 2 connected to the frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle frame.

[0002]

2. Description of the Related Art Conventionally, in a motorcycle frame,
It is mainly formed as an integral type made of a round or square pipe called a gradel frame, and a metal spring and a hydraulic damper are mainly used as a shock absorber for the rear wheel, but the appearance is not preferable. Particularly in the home United States, American-style motorcycles are preferred in which all frames are integrally formed. Therefore, the rigid frame should be a rigid frame which does not have a shock absorber on the rear wheel. However, the rigid frame does not exist because it does not conform to the Japanese law such as the Road Transport Vehicle Law and the road transport vehicle security standards.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve this problem and to obtain a more preferable design.

[0004]

SUMMARY OF THE INVENTION In a motorcycle frame having an engine supported by a round or square pipe, a rear arm is provided which forms the appearance of an integrated rigid frame when combined with the frame body. A damper made of rubber-like elastic material is provided between the end and the front end connected to the frame of the rear arm.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of the frame of the present invention, FIG. 2 is an enlarged sectional view of a rubber-like elastic material damper of FIG. 1, and FIG. 3 is an exploded perspective view of the present invention. 1, 2 and 3, reference numeral 1 is a frame body, 2 is a rear arm, 3 is a damper made of rubber-like elastic material, 4 is a holder for receiving the damper, 5 is a fixing screw,
6 is a pivot shaft. As shown in FIGS. 1 and 3, in a motorcycle frame supporting an engine with a round pipe, a rear arm 2 that forms the appearance of an integrated rigid frame when combined with the frame body 1 is provided. Holders 4 are fixed to the rear ends of the four pipes connected to the frame body 1 of the rear arm 2 and the front ends of the four pipes, respectively, and a damper 3 made of a rubber-like elastic material is provided between them. The rear arm 2 is assembled to the frame main body 1 by a pivot shaft 6. Therefore, since the rear arm 2 can rotate about the pivot shaft 6, the damper 3 provided on the upper and lower sides has a buffering action. The damper 3 is attached to the holder 4 with a fixing screw 5, as shown in FIG. This damper 3 is hollow, but as another form, it is conceivable to use a solid damper with the holder 4 deepened. When it is solid, the strength of the damper increases, so that it can be used under more severe conditions and the durability is improved. When using this, the rear arm 2 is assembled to the frame main body 1 after attaching the damper to each predetermined position in advance.

[0006]

As described above, according to the present invention, the shock absorber of the vehicle can be made inconspicuous, and the rigid frame can have an appearance.

[Brief description of the drawings]

FIG. 1 is a front view of a frame of the present invention viewed from a side.

FIG. 2 is an enlarged cross-sectional view of a rubber-like elastic member shown in FIG.

FIG. 3 is a developed perspective view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame main body 2 Rear arm 3 Damper 4 Holder 5 Fixing screw 6 Pivot shaft

Claims (1)

[Claims] 1. A motorcycle frame in which an engine is supported by a round or square pipe, a rear arm forming an appearance of an integrated rigid frame when combined with the frame body is provided, and a rear end of the frame body and a frame of the rear arm are provided. A motorcycle frame characterized in that a damper made of a rubber-like elastic material is provided between front ends to be connected.