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Bicycle chain wheel

A technology of bicycles and sprockets, which is applied to vehicle components, vehicle gearboxes, chain/belt transmissions, etc., and can solve problems such as rider burden

Inactive Publication Date: 2013-11-13
TIEN HSIN INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the overall weight of the loader arm has been improved, the loader arm still needs to be equipped with at least three chainrings at the same time, so the loader arm still has a considerable thickness, which will still cause unnecessary weight and cause serious damage to the rider. burden

Method used

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  • Bicycle chain wheel
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] refer to Figure 1 to Figure 3 , is a three-dimensional appearance view and an exploded view of the bicycle sprocket 1 of the present invention. The bicycle sprocket 1 includes a first chainring 10 , a second chainring 20 , a drive body 30 assembled on the second chainring 20 and at least one third chainring 40 assembled on the second chainring 20 . The number of teeth of the first toothed disc 10 is greater than that of the second toothed disc 20 , and the number of teeth of the second toothed disc 20 is greater than that of the third toothed disc 40 .

[0037] The first chainring 10 has a first surface 101 and a second surface 102, the first surface 101 is far away from the second toothed disk 20, the second surface 102 is close to the second toothed disk 20, the first toothed disk A through hole 11 extending from the first surface 101 of the first toothed disc 10 to the second surface 102 of the first toothed disc 10 is formed in the middle part of 10 to reduce wei...

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PUM

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Abstract

The invention provides a bicycle chain wheel which comprises a first dentate disc, a second dentate disc and a driving body, wherein a through hole is formed on the first dentate disc and is provided with an inner periphery; the second dentate disc is provided with a fixed part; the fixed part is provided with a first end and a second end; the second dentate disc is provided with a limiting part; the driving body is provided with an outer periphery; a free surface is far away from a first surface of the second dentate disc; a push-pull surface is close to the first surface of the second dentate disc; the outer periphery is connected with the free surface and the push-pull surface; the driving body pushes against the second dentate disc; the inner periphery of the first dentate disc is sleeved on the outer periphery of the driving body; the driving body is provided with an installation part; the first end of the fixed part is assembled at the limiting part of the second dentate disc; and the installation part of the driving body is assembled at the second end of the fixed part.

Description

technical field [0001] The present invention mainly relates to a bicycle sprocket, in particular to a bicycle sprocket with a lightweight structure, and its components can be easily and firmly assembled with each other. Background technique [0002] Referring to US Patent Publication No. 2005 / 0272546 "RIVETED SPROCKET ASSEMBLY", it discloses a sprocket consisting of several chainring assemblies. The sprocket has a chainring carrier with multiple arms; multiple chainrings have multiple rivet holes and multiple rivets for fixing the chainring on the carrying arm, and the rivets have a shaft and first and second Two rivet heads. During the riveting operation, the second rivet head is formed on one face of the chainring. The rivet hole of the chainring has: a shaft portion to accommodate the rivet shaft of the rivet; a countersink portion to accommodate the a second rivet head; and a gap for receiving a riveting tool around the second rivet head. The modular sprocket has the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M9/00
Inventor 廖嘉伟黄重晏
Owner TIEN HSIN INDS