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Expansion-braking type free-hub assembly of bicycle

A bicycle and hub technology, applied to bicycle accessories, bicycle brakes, etc., can solve the problems of small hub bearing capacity, complex structure, poor braking performance, etc., and achieve the effect of uniform force, compact structure of brake expansion and stable braking

Active Publication Date: 2018-03-27
CIXI KAIZHI VEHICLE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current bicycle mainly brakes the hub through the brake device to achieve the braking process, so the braking effect of the bicycle has a lot to do with the structure of the front and rear hubs, but the structure of the hub is currently more complicated, and the bearing capacity of the hub after assembly Small, resulting in poor braking performance

Method used

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  • Expansion-braking type free-hub assembly of bicycle
  • Expansion-braking type free-hub assembly of bicycle
  • Expansion-braking type free-hub assembly of bicycle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] see figure 1 , a bicycle brake hub assembly, including an integrated hub 7 and a hub shaft 10 pierced in the hub 7, and the hub 7 rotates relative to the hub shaft 10.

[0058] combine figure 1 , Figure 4 and Figure 5 , The hub 7 is made of aluminum or iron, preferably made of aluminum to reduce the overall weight, which includes the faceplate 71 on both sides, the brake drum 73 and the middle connecting pipe 72 connecting the two. Faceplate 71 and brake drum 73 all have flanges for the connection of spokes, and one end surface in brake drum 73 is provided with brake groove 731, and iron ring 75 is installed in brake groove 731, and the brake groove 731 The middle part of the groove bottom is provided with a raised limit ring 732, and the outer wall of the limit ring 732 is provided with a spline; the iron ring 75 includes a limit disc 751 abutting against the bottom of the brake groove 731, and the middle part of the limit disc 751 is provided with There is a rel...

Embodiment 2

[0079] see Figure 18 , different from the fixing method of the outer cover plate 8 and the vehicle frame 400 in the first embodiment, a fixing seat 410 is installed on the vehicle frame 400 through a fastener, and a limit socket 411 is opened on one end of the fixing seat 410, and the outer cover plate 8 The brake frame 81 on the top can be inserted into the limit socket 411 to realize the limit of the circumferential rotation of the outer cover plate 8 , and the operation of this fixing method is relatively simple.

Embodiment 3

[0081] see Figure 19 , the entire brake hub assembly also includes a multi-stage flywheel 500, the middle part of the multi-stage flywheel 500 is provided with a flywheel internal thread 510, and the end of the faceplate 71 is provided with a faceplate external thread 711, and the multistage flywheel 500 is fixed with the hub 7 It is fixed by screw connection.

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Abstract

The invention discloses an expansion-braking type free-hub assembly of a bicycle. The expansion-braking type free-hub assembly of the bicycle is characterized by comprising a free hub, a plurality ofbrake shoes, a hub shaft, a linkage mechanism, an outer cover plate and a reset piece. The outer cover plate is used for limiting the braking shoes and the linkage mechanism in an integrated free hub,the overall size is reduced, the structure is more compact, the weight is reduced, and the assembly is convenient to disassemble. At the time of braking, the braking shoes expand under the effect ofthe linkage mechanism so as to brake the integrated free hub, the phenomenon that original free hubs are arranged separately and thus easily loosens and slips is reduced, and the braking effect is greatly improved.

Description

technical field [0001] The invention relates to a bicycle component, in particular to a bicycle brake hub assembly. Background technique [0002] With the development of transportation tools, the bicycle industry is changing with each passing day, and people also put forward higher requirements for the performance of bicycles, such as multi-stage speed change, large bearing capacity, good shock resistance, durability, especially good braking ability . The current bicycle mainly brakes the hub through the brake device to achieve the braking process. Therefore, the braking effect of the bicycle has a lot to do with the structure of the front and rear hubs. However, the structure of the hub is relatively complicated at present, and the bearing capacity of the hub after assembly Small, resulting in poor braking performance. Contents of the invention [0003] The purpose of the present invention is to provide a bicycle expansion brake hub assembly with compact structure and b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62L1/00
CPCB62L1/005Y02T10/86
Inventor 严焕杰张益波
Owner CIXI KAIZHI VEHICLE IND CO LTD
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