The present invention relates to a bicycle derailleur gear, particularly a front derailleur gear, with improved reliability that comprises a kinematic mechanism in the form of a four-bar linkage with a base body and a mobile body connected together through a pair of connecting rods hinged to the base body and to the mobile body at four pin elements, the mobile body carrying a chain guide, the four-bar linkage-kinematic mechanism being associated with derailleur gear actuation means suitable for deforming the four-bar linkage-kinematic mechanism so as to determine a displacement of the mobile body with respect to the base body and consequently a displacement of the chain guide, the derailleur gear actuation means being of the motorized type and comprising a motor casing and an outlet shaft that projects directly from said motor casing and characterized in that the actuation means command a translation in the axial direction of the outlet shaft with respect to the motor casing and are mounted between distinct components of the four-bar linkage-kinematic mechanism through interposition of at least one tilting interface about a fifth pin element substantially parallel to the pin elements.


    Access

    Download


    Export, share and cite



    Title :

    Bicycle derailleur gear, particularly a front derailleur gear, with improved reliability


    Contributors:

    Publication date :

    2017-06-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16H Getriebe , GEARING / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



    Bicycle derailleur gear, particularly a front derailleur gear, with improved reliability

    PASQUA PAOLO / BORTOLI ALBERTO | European Patent Office | 2016

    Free access

    Bicycle derailleur, bicycle gear structure, bicycle motor unit and front derailleur

    FUJIMOTO NAOKI / UEDA TAKESHI | European Patent Office | 2022

    Free access

    BICYCLE DERAILLEUR, BICYCLE GEAR STRUCTURE, BICYCLE MOTOR UNIT, AND FRONT DERAILLEUR

    FUJIMOTO NAOKI / UEDA TAKESHI | European Patent Office | 2021

    Free access

    Bicycle derailleur, bicycle gear structure, bicycle motor unit and front derailleur

    FUJIMOTO NAOKI / UEDA TAKESHI | European Patent Office | 2022

    Free access

    Bicycle derailleur, bicycle gear structure, bicycle motor unit and front derailleur

    FUJIMOTO NAOKI / UEDA TAKESHI | European Patent Office | 2022

    Free access