Bicycle rear chain wheel assembly

A bicycle and rear sprocket technology, which is applied to vehicle components, vehicle gearboxes, chain/belt transmissions, etc., can solve the problems of high cost of sprocket components, increased number of parts and assembly time, and high processing requirements, so as to save materials , weight reduction and low production cost

Active Publication Date: 2014-06-04
ZHONGSHAN XINBAO PRECISION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of sprocket structure requires very high processing requirements for the intermediate frame components, and the number of parts and assembly time required are correspondingly increased.
Therefore the cost of the sprocket assembly of this type of structure is also very high

Method used

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  • Bicycle rear chain wheel assembly
  • Bicycle rear chain wheel assembly

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Embodiment Construction

[0013] The present invention is a kind of rear sprocket assembly of bicycle, as figure 1 , 2 As shown, it includes at least three sprockets arranged in parallel from large to small, wherein the largest and small sprockets 1, 2 are spoke type sprockets, and the centers of the largest and small sprockets 1, 2 are equipped with The splines I1 and 21 are socketed outside the rear hub of the bicycle; and the intermediate sprocket 3 is a hollow ring sprocket, that is, the center of the intermediate sprocket 3 does not directly contact the rear hub of the bicycle; between adjacent sprockets The fasteners 4 are connected by several fasteners 4 distributed at intervals in the circumference. The fasteners 4 are provided with a separation table 5 that separates adjacent sprockets in parallel. Because the present invention is sleeved on the rear hub of the bicycle by splines II, 21 of the largest and small sprockets 1, 2, and the intermediate sprocket 3 is not socketed with the rear hub ...

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PUM

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Abstract

The invention discloses a bicycle rear chain wheel assembly. The bicycle rear chain wheel assembly comprises at least three chain wheels which are arranged from large to small in parallel, wherein the largest and smallest chain wheels are radial wheels; the centers of the largest and smallest chain wheels are provided with splines which can be sleeved out of a rear hub of a bicycle; the intermediate chain wheel is a hollow ring-type chain wheel, namely the center of the intermediate chain wheel does not contact the rear hub of the bicycle directly; adjacent chain wheels are connected with each other through a plurality of fastening pieces distributed circumferentially; and separation tables for separating the adjacent chain wheels in parallel are arranged on the fastening pieces. The bicycle rear chain wheel assembly is reasonable in structure, low in production cost, light in weight, high in torsional rigidity, and easy to produce and assemble.

Description

【Technical field】 [0001] The invention relates to a bicycle, in particular to a rear sprocket assembly of the bicycle. 【Background technique】 [0002] In modern society, cycling has become more and more popular and popular. Whether it is an amateur rider or a professional rider, the pursuit of speed has become more eager. Therefore, the number of shifting gears in the bicycle transmission mechanism is increasing, and the number of sprockets of the sprocket assembly mounted on the rear hub of the bicycle has also changed from the previous six. increased to ten or more. As the number of sprockets increases, the radial dimension of the sprockets also increases, and the weight of the entire sprocket assembly is also greatly increased. For a single sprocket, especially the sprocket with a large radial dimension, the strength requirements are also increased. In order to prevent the lateral deformation of the sprocket with a large number of teeth during use, it will not only aff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M9/02
Inventor 钱海泽刘春生
Owner ZHONGSHAN XINBAO PRECISION SCI & TECH
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