A bicycle (100) front shifting system includes operable to transmit a wireless signal, a crank assembly (132) with two crank arms (134) and a pedal (136 )on each of the two crank arms (134). The crank assembly (132) is rotatable about a rotation axis. A front shift unit (150) is coupled to the crank assembly (132) and is rotatable about the rotation axis. The front shift unit (150) includes a chain ring component with a big chain ring (152) and a small chain ring (154). The small chain ring (154) has a small diameter and the big chain ring (154) has a big diameter that is larger than the small diameter. A shift mechanism is coupled to and rotatable with the chain ring component about the rotation axis. The shift mechanism is configured to receive the wireless signal from the shifter (128) and to shift a chain (138) between the big chain ring (152) and the small chain ring (154) according to the wireless signal.


    Access

    Download


    Export, share and cite



    Title :

    BICYCLE FRONT SHIFTING SYSTEM


    Additional title:

    FAHRRAD-FRONTSCHALTSYSTEM
    SYSTÈME DE CHANGEMENT DE VITESSES AVANT DE BICYCLETTE


    Contributors:

    Publication date :

    2020-05-06


    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



    Bicycle shifting device and bicycle assist system including bicycle shifting device

    YAMAMOTO TAKASHI / URABE HIROYUKI / IKEDA KAI | European Patent Office | 2019

    Free access

    BICYCLE SHIFTING DEVICE AND BICYCLE ASSIST SYSTEM INCLUDING BICYCLE SHIFTING DEVICE

    YAMAMOTO TAKASHI / URABE HIROYUKI / IKEDA KAI | European Patent Office | 2018

    Free access

    Bicycle shifting system

    HARA NOBUKATSU | European Patent Office | 2018

    Free access

    BICYCLE SHIFTING SYSTEM

    HARA NOBUKATSU | European Patent Office | 2017

    Free access

    Bicycle gear shifting system

    SHIPMAN CHRISTOPHER / JORDAN BRIAN / HAHN SAGE | European Patent Office | 2025

    Free access