A driving unit for use in an electric assist bicycle with reduced size as measured in an axial direction of the crankshaft is provided. A driving unit 50 may be used in an electric assist bicycle 10. The driving unit 50 includes a motor 60, a first transmission gear 84 and a driven gear 104. Out of the motor 60, first transmission gear 84 and driven gear 104, a first component 104 is a component with the largest diameter as viewed in an axial direction of the crankshaft 54, and a second component 60 is a component with the second largest diameter. A substrate 150 is located between the first and second components 104 and 60 as measured in an axial direction of the crankshaft 54.


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    Title :

    Driving unit and electric assist bicycle


    Additional title:

    Antriebseinheit und elektrisch unterstütztes Fahrrad
    Unité d'entraînement et bicyclette à direction assistée


    Contributors:

    Publication date :

    2019-07-17


    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



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