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Motorcycle rear vehicle body structure

A rear car body and motorcycle technology, applied to steering mechanisms, bicycle accessories, axle suspension devices, etc., can solve the problems of low assembly efficiency, low strength of flat forks, and increased production costs, and achieve easy assembly and adjustment, and reduce inventory Effect of preparation and improvement of assembly efficiency

Pending Publication Date: 2018-08-17
力帆科技(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing motorcycle flat forks are generally assembled by parts welding. In the process of welding and assembling, it is easy to produce false welding, missing welding, etc., and there are likely to be very fine gaps in the welding place. Leakage, and the welding stress is concentrated, and the strength of the flat fork is low
Therefore, only by increasing the diameter of the leg tube to improve the strength of the welded flat fork, the weight will increase accordingly, which will not only increase the production cost, but also increase the fuel consumption of the motorcycle
Moreover, in order to ensure the welding accuracy of motorcycle flat forks, welding tooling is required. Due to the existence of welding tension deformation, tooling manufacturing errors and tooling wear after batch use during flat fork welding, the cumulative error is large, and it is easy to make the motorcycle The front and rear wheels of the car cannot be adjusted to the same straight line during assembly, resulting in prone to side fall when driving at high speed or turning
It can be seen from the above that, especially for high-power, high-performance sports cars, off-road vehicles and other models, there are insufficient problems in structural strength and safety.
[0003] In addition, the existing motorcycle rear fenders and motorcycle chain guards are all independent parts. In order to ensure the reliability of the installation of the motorcycle rear fenders and motorcycle chain guards, each part needs to be assembled separately. In particular, each component needs to be fixed with multiple installation points, resulting in low assembly efficiency and high labor intensity for workers

Method used

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  • Motorcycle rear vehicle body structure
  • Motorcycle rear vehicle body structure
  • Motorcycle rear vehicle body structure

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0030] like figure 1 and figure 2 As shown, a rear body structure of a motorcycle includes a flat fork 100 on which a rear fender 210, a chain guard 220, a chain guard 300, a rear wheel mounting shaft 400 and a rear shock absorber are assembled. 500. Among them, the rear fender 210 and the chain guard 220 are integrally formed to form the rear mudguard chain guard 200, which has an ingenious structure and high reliability. Workers only need to align once to complete the installation, and the number of fixed points for installation is reduced. The efficiency of assembly has been greatly improved and the inventory preparation of parts has been reduced. The flat fork 100 is made of aluminum alloy, and it is molded at one time through a casting process. The flat fork 100 made of aluminum alloy is light in weight and high in strength, and the flat fork 100 fo...

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Abstract

The invention discloses a motorcycle rear vehicle body structure which comprises a flat fork. A rear fender, a chain shield, a chain protection clip and a rear wheel installation shaft are assembled on the flat fork. The flat fork comprises a left main plate, a right main plate and a flat fork shaft pipe, all of which are integrally formed. The two ends of the flat fork shaft pipe are connected with the front ends of the left main plate and the right main plate. The chain protection clip is installed on the left main plate. The two ends of the rear wheel installation shaft are connected with the rear portions of the left main plate and the right main plate. The chain shield is integrally formed on one side wall of the rear fender, and the chain shield and the rear fender form an integratedrear fender chain shield fixedly installed on the flat fork, wherein the chain shield is located above the chain protection clip. By the adoption of the provided motorcycle rear vehicle body structure, the flat fork is simple in structure, high in strength, good in reliability and capable of being applied to vehicle models such as high-power high-performance sports cars and off-road vehicles, andthe rear fender and the chain shield are combined into a whole.

Description

technical field [0001] The invention belongs to the technical field of motorcycle components, and in particular relates to a motorcycle rear body structure. Background technique [0002] The motorcycle flat fork belongs to the suspension device, which is installed on the motorcycle frame and is used to install and fix the rear wheel of the motorcycle, and is one of the important parts of the motorcycle. Existing motorcycle flat forks are generally assembled by parts welding. In the process of welding and assembling, it is easy to produce false welding, missing welding, etc., and there are likely to be very fine gaps in the welding place. Leakage, and the welding stress is concentrated, and the strength of the flat fork is low. Therefore, only by increasing the diameter of the leg tube to improve the strength of the welded flat fork, the weight will increase accordingly, which not only increases the production cost, but also increases the fuel consumption of the motorcycle. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K25/04B62J13/02B62J15/00B62K21/02
CPCB62J13/02B62J15/00B62K21/02B62K25/04
Inventor 赵正东
Owner 力帆科技(集团)股份有限公司
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