The drive unit includes a crank shaft 14 rotatable by a human driving force, a resultant-force transmission member 15 rotatable by the resultant driving force of a human driving force and an auxiliary driving force, an output wheel member 16 provided on the resultant-force transmission member 15, and a speed change mechanism 17 that changes the rotation speed of the resultant-force transmission member 15. The crank shaft 14 and the resultant-force transmission member 15 are coaxial with each other. The speed change mechanism 17 has a plurality of selectable gears with different gear ratios. The drive unit further includes a detection unit that detects selected one of the gears.


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    Titel :

    DRIVE UNIT AND ELECTRIC POWER-ASSISTED BICYCLE


    Weitere Titelangaben:

    ANTRIEBSEINHEIT UND ELEKTRISCH UNTERSTÜTZTES FAHRRAD
    UNITÉ D'ENTRAÎNEMENT ET BICYCLETTE À ASSISTANCE ÉLECTRIQUE


    Beteiligte:
    KAWAKAMI MASAFUMI (Autor:in) / OZAWA SATOSHI (Autor:in)

    Erscheinungsdatum :

    2019-06-19


    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



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