Front fork device and assembly method thereof

A technology of fork legs and headsets, which is applied in transportation and packaging, steering mechanisms, bicycle accessories, etc., can solve the problems of stress concentration at the welding point between the upper riser and the fork legs, and the small adjustment range of the handlebar height, so as to ensure arbitrariness , the adjustment range is improved, and the effect of dispersing the force

Inactive Publication Date: 2017-02-22
北京迷你派科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a front fork device to solve the technical problems of relatively concentrated stress at the weld between the upper standpipe and the fork leg in the traditional bicycle and the small adjustment range of the height of the handlebar

Method used

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  • Front fork device and assembly method thereof
  • Front fork device and assembly method thereof
  • Front fork device and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 with figure 2 As shown, the present invention provides a front fork device, comprising a frame main pipe 1, the upper and lower sides of the frame main pipe 1 are provided with a headset 3, and the headset 3 includes a bearing, a retaining ring, a washer and an end cover. Combination, as a standard accessory, you can directly purchase the corresponding model, just install and use, there is an upper riser 2 inside the frame main pipe 1, a fork leg sleeve 4 is provided under the frame main pipe 1, the upper riser 2 and the fork leg sleeve 4 are connected together by a connecting piece 6, so that the fork leg cover 4 can rotate with the rotation of the upper standpipe 2. Two fork legs 5 for installing the front wheel 8 are fixed on the fork leg cover 4. The upper standpipe 2 includes The connecting end 201 connected to the handlebar and the fixed end 202 connected to the fork leg cover 4, the fixed end 202 runs through the main pipe 1 of the vehicle fram...

Embodiment 2

[0038] The present invention provides a front fork device, the structure of which is basically the same as the first embodiment, the difference is that the connecting piece 6 includes a pin and a cotter pin, and similarly, radial Through holes, the pins run through the fork leg sleeve 4 and the upper standpipe 2 in the radial direction, and the cotter pin is installed on the end of the pin protruding from the fork leg sleeve 4. Although this connection method is relatively fast, the cotter pin is placed externally, so that the To a certain extent, it affects the appearance of the bicycle, and those skilled in the art can choose to use it according to needs.

[0039] Of course, the specific structure of the connector 6 can also have other deformations. For example, an axially extending groove is provided on the fork leg sleeve 4, and a key bar or pin matched with the groove is arranged on the upper riser 2. The two can be connected so that the fork leg cover 4 can rotate with t...

Embodiment 3

[0041] Such as figure 2 As shown, the present invention provides a front fork device, the structure of which is basically the same as that of Embodiment 1, the difference is that the upper standpipe 2 is provided with a boss 203, and the boss 203 is located at the connection end 201 of the upper standpipe 2, The end face of the boss 203 abuts against the headset 3 located above the main tube 1 of the vehicle frame. The diameter of the boss 203 is slightly larger than that of the upper riser 2, and it is in the shape of a cone with a large bottom and a small top. The limiting and supporting functions effectively prolong the service life of the connecting piece 6 and the locking piece 7 .

[0042] The locking member 7 includes an expansion hanging core 701, which is a commonly used locking element, and will not be described in detail here. When the end of the fixed end 202 is locked, it is faster to use the combination of the expansion hanging core 701 and the gasket 702. , be...

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PUM

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Abstract

The invention relates to a front fork device and an assembly method thereof. The front fork device comprises a bicycle frame main pipe, and bowl sets are arranged on the upper side and the lower side of the bicycle frame main pipe. An upper stand pipe is arranged in the bicycle frame main pipe, a cross leg cover is arranged below the bicycle frame main pipe, the upper stand pipe and the cross leg cover are connected with each other through a connecting piece, dual cross legs used for installing front wheels are fixed on the cross leg cover, the upper stand pipe comprises a connecting end connected with a bicycle handle and a fixed end connected with the cross leg cover, the fixed end penetrates through the bicycle frame main pipe as well as the cross leg cover and stretches out of the cross leg cover, and a locking piece is arranged between the end of the fixed end and the cross leg cover. The front fork device and the assembly method thereof solve technical problems in a traditional bicycle that a welding part of the upper stand pipe and the cross legs is usually under a concentrated stress, and the handlebar has a very small adjustment range.

Description

technical field [0001] The invention relates to the technical field of bicycles, in particular to a front fork device and an assembly method thereof. Background technique [0002] A bicycle, also known as a bicycle or bicycle, is a small two-wheeled land vehicle. After a person rides on the vehicle, it is powered by pedals. It is a green and environmentally friendly means of transportation. The bicycle industry is a traditional industry with a history of more than 100 years. Today, due to environmental protection and traffic problems, bicycles have once again become a favorite transportation and fitness tool for residents of all countries in the world, especially developed countries. The focus of the world bicycle industry is shifting from traditional transportation to Tools are changing to sports, mountain, and leisure. In developed countries such as the United States, Europe, and Japan, bicycles are a relatively common product for sports, fitness, leisure, and entertainmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K21/02B62K21/16
CPCB62K21/02B62K21/16
Inventor 潘献德高林杰
Owner 北京迷你派科技有限公司
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