The present invention provides a propulsion apparatus for human powered vehicles and machines. The propulsion apparatus is powered by exerting a force (such as the operator's weight) onto the foot pedals in a reciprocating fashion. It is comprised of two ratcheting arm foot pedals which transfer a high torque and low speed input to the output axle ; transmission elements for shifting the displacement of one arm foot pedal into an equal and opposite displacement of the other one; and an arrangement of gears and ratcheting crank arms which convert the alternating motion into rotational motion and transfers a low torque and high speed input to the output axle. The high torque low speed input engages when the output axle slows down to a certain speed and the low torque high speed input is engaged until the output axle reaches a certain speed in order to achieve and maintain an overall good average torque and speed in the output axle.


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    Title :

    PROPULSION APPARATUS FOR HUMAN POWERED VEHICLES AND MACHINES


    Additional title:

    APPAREIL DE PROPULSION POUR VEHICULES ET MACHINES A PROPULSION HUMAINE


    Contributors:

    Publication date :

    2015-05-12


    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 / F16H Getriebe , GEARING



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