A bicycle transmission device basically includes an input rotational shaft, an output part, a transmission mechanism and a switching mechanism. The transmission mechanism includes a first rotating body configured to transmit rotation of the input rotational shaft and a fourth rotating body configured to transmit the rotation of the input rotational shaft. The switching mechanism is configured to selectively switch between a first state in which a ratio of a rotational speed of the output part to a rotational speed of the input rotational shaft is a first ratio and a second state in which the ratio is a second ratio that is different from the first ratio. The switching mechanism includes a one-way clutch and a switching unit.


    Access

    Download


    Export, share and cite



    Title :

    Bicycle transmission device


    Contributors:

    Publication date :

    2021-05-04


    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 / F16H Getriebe , GEARING



    Transmission device for bicycle and bicycle

    SHI JINGCHUN | European Patent Office | 2021

    Free access


    BICYCLE SHIFTER, BICYCLE TRANSMISSION DEVICE, AND BICYCLE ELECTRIC SYSTEM

    ICHIDA TADASHI / TAKAHASHI NORIAKI | European Patent Office | 2016

    Free access

    Bicycle shifter, bicycle transmission device, and bicycle electric system

    ICHIDA TADASHI / TAKAHASHI NORIAKI | European Patent Office | 2021

    Free access

    Bicycle shifter, bicycle transmission device, and bicycle electric system

    ICHIDA TADASHI / TAKAHASHI NORIAKI | European Patent Office | 2018

    Free access