This invention is directed to a variable speed drive system comprising: a frame having front and rear wheels; reciprocating pedals rotatably attached to the frame for supporting the rider; a pedal cam attached to one of the pedals at a hub where a distance between the hub and a first sprocket of the pedal cam is less than a distance between the hub and a second sprocket of the pedal cam; a coupling cam attached at a front axle and operably connected to the pedal cam so that when the pedal cam rotates when force is exerted downward on the pedal, the coupling cam rotates in an opposite direction from the pedal cam; and a drive sprocket carried by the coupling cam and linked to a wheel sprocket by a drive chain so that when the coupling cam rotates, the drive sprocket rotates causing the rear wheel to rotate.


    Access

    Download


    Export, share and cite



    Title :

    Scooter having a variable speed cam drive system


    Contributors:

    Publication date :

    2016-01-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62K Fahrräder , CYCLES / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



    Speed curve variable scooter speed control method

    JUNG HAN | European Patent Office | 2024

    Free access

    Child electric scooter with variable speed adjusting mechanism

    ZHOU YONGLIN | European Patent Office | 2022

    Free access

    Double-drive electric scooter

    ZHOU PAN / HE PING | European Patent Office | 2024

    Free access

    Scooter having a gearing system

    SCOLARI NATHAN A / REITER GEORGE | European Patent Office | 2015

    Free access

    Scooter Having A Gearing System

    SCOLARI NATHAN A / REITER GEORGE | European Patent Office | 2016

    Free access