A bicycle power-saving crank includes: a base arm connected at one end to a chainwheel and rotatable synchronously with the chainwheel; a base sprocket, fixed to the base arm and facing in the chainwheel; an outer sprocket, rotatably connected to the other end of the base arm via an outer spindle; a transmission component, rotatably connected to the base sprocket and the outer sprocket; and an outer arm, rotatably connected to the outer spindle and a pedal and rotatable synchronously with the outer sprocket. When the base arm extends horizontally in the travel direction, while the axial extension line of the outer arm forms a 12° angle relative to the horizontal extension line of the base arm. This design ensures that, throughout the pedaling process, the outer arm consistently maintains an angle of 12° relative to the base arm, regardless of its rotational angle, thereby enhancing pedaling efficiency.


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    Titel :

    BICYCLE POWER-SAVING CRANK


    Beteiligte:
    LO CHING-CHANG (Autor:in) / WANG CHIN-CHU (Autor:in) / WANG TING-YUAN (Autor:in) / LO LI-CHIEH (Autor:in) / WANG TING-HUI (Autor:in) / LIN CHUNG-HSUAN (Autor:in)

    Erscheinungsdatum :

    22.05.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



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