The invention relates in particular to an electric assist device for a bicycle, said device including: an electric machine (2) including a rotor; a drive pinion (3) driven by the rotor of the electric machine; attachment means (4) capable of attaching the electric machine to the bicycle (1) close to a tire (5) of a wheel (61; 62) of said bicycle; a power source (7) for powering the electric machine; and means (8) for controlling the electric machine, characterized in that the drive pinion comprises gear teeth (31) for meshing tangentially with complementary gear teeth (51) that are rigidly connected to said tire (5).


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    Title :

    ELECTRIC ASSIST DEVICE FOR A BICYCLE AND ELECTRICALLY ASSISTED BICYCLE PROVIDED WITH SUCH A DEVICE


    Contributors:

    Publication date :

    2015-08-05


    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