JPS5819994Y2 - Rear fork attachment device for motorcycles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting device for a Liljahawk on a motorcycle or other two-wheeled vehicle.

Conventionally, this type of device is provided with a rear wheel driven by a tribe chain extending forward and backward along one side of the body frame at the rear of the body frame, and a pair of left and right wheels extending forward from both outsides of the rear wheel. A type is known in which the lateral rear hawk pipe at the front end of the rear hawk is fitted and supported on a pivot shaft installed horizontally on the vehicle body frame via bearings on one side and the other side, but in this case, Each bearing generally consists of a bush or a needle bearing; the former requires some clearance in the radial direction and the thrust direction, making it difficult to set up, and the latter In this case, the occurrence of backlash in the thrust direction cannot be avoided.

The purpose of the present invention is to obtain a device that does not have such inconveniences.The rear wheels are driven by a tribe chain 2 that extends in the longitudinal direction along one side of the body frame 1 at the rear of the body frame 1. 3, and a pair of left and right rear wheel hawks 4, 4 extending forward from both outsides of the rear wheel 3. In the type of fitting support via the bearing 7 on the other side and the bearing 8 on the other side, the bearing 7 on the negative side is composed of a needle bearing, and the bearing 8 on the other side is composed of an angular bearing or other thrust bearing. It is characterized by causing

In the illustrated example, the pivot shaft 6 is constituted by a pivot bolt, and a center collar 9 is arranged in the middle between the bearing 7 on one side and the bearing 8 on the other side, and side collars 10 and 10 are arranged on both outer sides of the center collar 9. The bearings 8 on the other side are tightened together from the outside through the body frame 1 to form an integral structure with the body frame 1.
The outer 8a of the angular bearing constituting the pipe 5 was integrally connected to the pipe 5 by tightening the outer 8a with a retainer 11 from the outside.

As described above, according to the present invention, the bearing 7 on one side is composed of a needle bearing, and the bearing 8 on the other side is composed of an angular bearing. In addition to being able to absorb radial loads due to large tension, the angular bearing is effective in absorbing loads in the thrust direction, and has little wobbling in both the radial and thrust directions as a whole, ensuring smooth and reliable operation. It has the effect of

[Brief explanation of the drawing]

FIG. 1 is a side view of one example of the device of the present invention, FIG. 2 is a front view of its essential parts, and FIG. 3 is an enlarged cutaway front view thereof. 1...Body frame, 2...Tribe chain, 3...Rear wheel, 4,4...Rear hawk, 5...Rear hawk Pipe, 6...
Pivot shaft, 7, 8...bearing.

Claims (1)

[Scope of utility model registration request] A rear wheel 3 driven by a tribe chain 2 extending in the longitudinal direction along one side of the vehicle body frame 1 is provided at the rear of the vehicle body frame 1, and a pair of left and right rear wheels extend forward from both outer sides of the rear wheel 3. A type in which a lateral rear hawk pipe 5 at the front end of 4, 4 is fitted and supported on a pivot shaft 6 installed horizontally on the vehicle body frame 1 via a bearing 7 on the negative side and a bearing 8 on the other side. A rear hawk attachment device for a two-wheeled motor vehicle, characterized in that the negative side bearing 7 is constructed with a needle bearing, and the other side bearing 8 is constructed with an angular bearing or other thrust bearing.