The invention relates to a derailleur mechanism and a bicycle. The chain shifting mechanism comprises a fixed seat, a guide rod, a sliding assembly, a first elastic piece and a chain shifting assembly. The fixing base is provided with a fixing part, the fixing part is constructed to be installed on a rear axle or a frame, and the rear axle or the frame is further used for installing a speed change fluted disc with the first axis as the axis of the speed change fluted disc. The guide rod takes a second axis as the axis of the guide rod and is fixedly connected to the fixing seat, the second axis is configured to form an acute angle with the first axis, the guide rod and the fixing part are located on the same side of the fixing seat in the direction of the first axis, and the guide rod is provided with a rotation stopping part. The sliding assembly comprises a guide wheel seat, the guide wheel seat is controlled to be movably connected to the guide rod in a sleeving mode along the second axis and connected with the rotation stopping part, and the rotation stopping part prevents the guide wheel seat from rotating around the second axis. The chain shifting assembly is configured to be rotatably installed on the guide wheel base in the first direction parallel to the first axis and used for tensioning a chain on the speed change fluted disc. The chain shifting mechanism is simple and reliable in transmission structure and free of gear shifting clamping stagnation.

    本申请涉及一种拨链机构及自行车。该拨链机构包括:包括固定座、导杆、滑动组件、第一弹性件和拨链组件。固定座具有固定部,固定部被构造为安装于后轮轴或车架,后轮轴或车架还用于安装以第一轴线为自身轴线的变速齿盘。导杆以第二轴线为自身轴线,且固接于固定座,第二轴线被构造为与第一轴线呈锐角布置,且导杆和固定部位于固定座在第一轴线方向上的相同一侧,导杆上具有止旋部。滑动组件包括导轮座,导轮座受控沿第二轴线可移动地套接于导杆,且与止旋部连接,止旋部阻碍导轮座绕第二轴线转动。拨链组件被构造为绕平行于第一轴线的第一方向可转动地安装于导轮座,用于张紧变速齿盘上的链条。该拨链机构传动结构简单可靠且不会换挡卡滞。


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    Titel :

    Draw chain mechanism and bicycle


    Weitere Titelangaben:

    拨链机构及自行车


    Beteiligte:
    MO YIPING (Autor:in) / DAVID TAK WEI HON (Autor:in) / ZHENG HANXIN (Autor:in)

    Erscheinungsdatum :

    2022-03-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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