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Bicycle chain wheel manufacturing method

A manufacturing method and technology of sprocket sets, which are applied to belts/chains/gears, gear teeth, vehicle parts, etc., can solve the problems of failure to achieve light weight, time-consuming and troublesome manufacturing and assembly of rear sprocket sets, etc.

Inactive Publication Date: 2016-02-17
TIEN HSIN INDS
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a method for manufacturing a bicycle sprocket set that can solve the problems of time-consuming and labor-intensive assembly of the known bicycle rear sprocket set and the failure to achieve light weight.

Method used

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  • Bicycle chain wheel manufacturing method
  • Bicycle chain wheel manufacturing method
  • Bicycle chain wheel manufacturing method

Examples

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no. 1 example

[0058] see Figure 3~Figure 6 , the present invention discloses a method for manufacturing a bicycle sprocket set, the first embodiment of which includes the following steps:

[0059] Step (a1): First prepare a first sprocket 10, the first sprocket 10 has a first outer ring portion 11 and a first inner ring portion 12, the first outer ring portion 11 is provided with a plurality of first sprockets 13, and the first inner ring part 12 is provided with a plurality of first male connectors 14, in this embodiment the plurality of first male connectors 14 are arranged equidistantly on the first inner ring part 12, and the first male connectors 14 A first positioning hole 15 is provided.

[0060] Step (b1): prepare a second sprocket 20, the second sprocket 20 is smaller than the first sprocket 10 and has a second outer ring part 21 and a second inner ring part 22, the second outer ring part 21 is set There are a plurality of second chain teeth 23, and the second inner ring portion...

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Abstract

The invention discloses a bicycle chain wheel manufacturing method comprising the following steps of connecting a first chain wheel and a second chain wheel having the different size as the first chain wheel via a plurality of column pins in advance, moving a combined member formed by the connected first chain wheel and the second chain wheel via the column pins to a forming die, and injection molding a chain wheel seat according to the die shape. First and second inner rings of the first and second chain wheels are respectively provided with a plurality of first common connection members and second common connection members; the first and second common connection members are respectively provided with first positioning holes and second positioning holes; an assembling hole is formed in the center of the chain wheel seat; a plurality of connection arms are arrayed on the periphery of the chain wheel seat; the connection arms cover the first and second common connection members to form a chain wheel product; and rivet connection due to modularization can be avoided, so quick manufacturing and light products can be achieved.

Description

technical field [0001] The invention relates to a bicycle sprocket, in particular to a method for manufacturing a bicycle sprocket set which can be manufactured quickly through modularization and can reduce manufacturing costs. Background technique [0002] The sprocket set of a general variable speed bicycle has a plurality of sprockets of different sizes and numbers of teeth, which are assembled together on a sleeve, and the sleeve is also sleeved on the mandrel of a rear hub, which is connected to the rear wheel of the bicycle. connected, and stepping on the bicycle pedal will drive a large chainring group to rotate, and the large chainring group and the sprocket group are connected together by a chain, which can be used to adapt to different road conditions by using a transmission of the bicycle to change the chain to hang the large tooth One of the large chainrings of the disc set and one of the sprockets of the sprocket set drive the bicycle forward. [0003] As the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/00B23F17/00
Inventor 蔡文丰廖文男
Owner TIEN HSIN INDS
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