To prevent looseness between a sandwiching part and a crank arm, and to further improve workability of assembly relative to a bicycle in a power-assisting device.SOLUTION: A power-assisting device includes a connecting structure 70 for connecting a rotary output member 64 to a crank arm 26 of a bicycle 10 in a manner to transmit torque. The connecting structure 70 includes a connecting main member 72 which has facing surfaces 74A, 77A facing front and back surfaces 26C, 26D relative to a rotation direction of the crank arm 26 and is fixed on the rotary output member 64, wedge members 74, 77 arranged between the front and back surfaces 26C, 26D of the crank arm 26 and facing surfaces 74A, 77A of the connecting main member 72, and a screw member 80 for mounting the wedge members 74, 77 relative to the connecting main member 72 to advance and retreat.SELECTED DRAWING: Figure 3

    【課題】電動アシスト装置において、挟み部とクランクアームとの間にがた付きがなく、しかも自転車に対する組み付けの作業性がよいことについて更なる改善を行うこと。【解決手段】回転出力部材64を自転車10のクランクアーム26にトルク伝達可能に結合する結合構造70を有し、結合構造70は、クランクアーム26の回転方向についての前後面26C、26Dに対向する対向面74A、77Aを有し、回転出力部材64に固定された結合主部材72と、クランクアーム26の前後面26C、26Dと結合主部材72の対向面74A、77Aとの間に配置される楔部材74、77と、楔部材74、77を結合主部材72に対して進退可能に取り付けるねじ部材80とを有する。【選択図】図3


    Access

    Download


    Export, share and cite



    Title :

    POWER-ASSISTING DEVICE AND BICYCLE


    Additional title:

    電動アシスト装置及び自転車


    Contributors:

    Publication date :

    2020-09-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



    Bicycle power assisting device

    SUN XIPING | European Patent Office | 2023

    Free access

    Bicycle power assisting system and bicycle power assisting method

    SUN WENTAO / WANG CHANGJIN / XUE JINGTAO et al. | European Patent Office | 2024

    Free access

    Bicycle power assisting device

    HUAN RONGHUI | European Patent Office | 2022

    Free access


    Electric power assisting device and electric power assisting bicycle

    HU XIANG / SUN MIN | European Patent Office | 2024

    Free access