The size of the housing (21) of the drive unit used in an electric-motor-assisted bicycle (10) is reduced. As viewed in an axial direction of the crank axle (22), the substrate (48) housed in the housing does not overlap the reduction gear (24) but overlaps the driven gear (2333). The substrate is disposed around the crank axle. The substrate includes a component side. The component side spreads in a direction crossing the central axis (CL1) of the crank axle. The substrate extends in directions crossing radial directions of the crank axle. One end (481) of the substrate as determined along the direction in which the substrate extends is located on the side of the straight line (L1) connecting the shaft center of the crank axle and the shaft center of the motor output shaft (2522) as viewed in the axial direction, that is opposite to the side having the other end (488) of the substrate as determined along the direction in which the substrate extends. As viewed in the axial direction, the one and other ends are located between the shaft center of the crank axle and the shaft center of the motor output shaft as determined along the direction in which the straight line extends.


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    Titel :

    DRIVE UNIT AND ELECTRIC-MOTOR-ASSISTED BICYCLE


    Weitere Titelangaben:

    ANTRIEBSEINHEIT UND ELEKTROMOTORUNTERSTÜTZTES FAHRRAD
    UNITÉ D'ENTRAÎNEMENT ET BICYCLETTE ASSISTÉE PAR MOTEUR ÉLECTRIQUE


    Beteiligte:
    UDA MASATSUGU (Autor:in) / SUZUKI RYOTA (Autor:in) / MANO YASUNORI (Autor:in) / USAMI TOMOHIRO (Autor:in)

    Erscheinungsdatum :

    2019-05-08


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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