A gearing device consisting of axle 10, input disc 9 with an inner convex friction surface, intermediate rollers with ends 12, and output disc 17 with an inner concave friction surface. The gear ratio is altered by the radial displacement of the intermediate rollers under urging from a gearshift means. The radius of curvature of the output disc may be three times that of the input disc and rollers. The gearing device may be for a bicycle or other pedal cycle and the gearshift means may be a gearshift cable operated by the rider.


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    Title :

    A gearing device


    Contributors:

    Publication date :

    2023-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16H Getriebe , GEARING / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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