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.


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    Title :

    Bicycle chain wheel manufacturing method


    Contributors:
    CAI WENFENG (author) / LIAO WENNAN (author)

    Publication date :

    2016-02-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B23F Herstellen von Zahnrädern oder Zahnstangen , MAKING GEARS OR TOOTHED RACKS



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