A bicycle rear derailleur (10) comprises an articulated quadrilateral linkage (11) having a base body (12), a movable body (14) and a pair of connecting rods (13, 15) articulated to the base body (12) and to the movable body (14) along respective articulation axes (A, B, C, D) that are parallel to one another and perpendicular to a reference plane (REF), said base body (12) being connectable to a bicycle frame along a drop-out axis (F), a chain guide (21) being rotatably connected to said movable body (12) around a first rotation axis (R), an upper pulley (22) being rotatably connected to said chain guide (21) around a second rotation axis (RS), said first rotation axis (R) being parallel to said second rotation axis (RS) and being spaced from it by a distance of eccentricity (E). An angle of inclination (Q) of the articulated quadrilateral (11) is defined by the angle that the drop-out axis (F) and the reference plane (REF) form on a plane passing through the drop-out axis (F) and perpendicular to the reference plane (REF), the angle of inclination (Q) being substantially comprised between 5° and 40°, including extreme values, and the distance of eccentricity (E) being comprised between 18 mm and 50 mm, including extreme values.


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    Title :

    BICYCLE REAR DERAILLEUR


    Additional title:

    HINTERRADKETTENSCHALTUNG FÜR EIN FAHRRAD
    DÉRAILLEUR ARRIÈRE DE BICYCLETTE


    Contributors:

    Publication date :

    2021-05-05


    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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