A drive mechanism for connecting a crank arm of a bicycle crankset or the like to a crankshaft, in a selected one of at least two modes. In one available mode, a crank arm is oriented to the crankshaft at a fixed angle about the axis of rotation of the crankshaft. In another available mode, a crank arm can be rotated freely about the crankshaft in a first direction but is connected drivingly to the crankshaft by a pawl so as to rotate the crankshaft in an opposite second direction. In a third available mode, the pedal crank arm is free to rotate in either direction with respect to the crankshaft through a limited angle of rotation beyond which a pawl in one member of the drive mechanism will engage another member and cause the crank arm to rotate the crankshaft.


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    Title :

    CRANK ARM DRIVE REGULATING MECHANISM


    Contributors:

    Publication date :

    2018-12-20


    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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