The invention discloses a rear fork folding device capable of simultaneously achieving longitudinal folding and transverse moving of a rear fork. The rear fork folding device comprises a left support, a right support, a rear fork shaft, a connecting shaft and the rear fork, the left support and the right support are fixed to the left end and the right end of a frame five-way joint respectively, the rear fork shaft is rotatably and movably installed on the left support, a center hole is machined in the right section of the rear fork shaft, the rear fork is fixedly installed on the rear fork shaft, the right end of the connecting shaft is fixedly installed on the right support, the left end of the connecting shaft is inserted into the rear fork shaft, a sliding pin is arranged on the inner side face of the left support, a corresponding spiral groove is machined in the rear fork shaft, and the rear fork shaft rotates when the rear fork is longitudinally folded When the sliding pin slides in the spiral groove of the rear fork shaft, the rear fork shaft is forced to move leftwards, and thus the rear fork can move transversely while being folded longitudinally. According to the folding device, the rear fork can be located on one side of the front triangle of the frame after being folded, longitudinal folding of the rear fork can be achieved through any front triangle structure, and the strength and the stability of the frame are guaranteed.

    本发明公开了一种能同时实现后叉纵向折叠及横向移动的后叉折叠装置,包括左支座、右支座、后叉轴、连接轴和后叉,所述左支座、右支座分别固定在车架五通的左端和右端,所述后叉轴可转动且可移动地安装在左支座上,后叉轴的右段加工有中心孔,后叉固定安装在后叉轴上,所述连接轴的右端固定安装在右支座上,左端插接在后叉轴中,所述左支座的内侧面上设有一滑销,后叉轴上加工有相应的螺旋凹槽,纵向折叠后叉时后叉轴转动,滑销在后叉轴的螺旋凹槽内滑动时迫使后叉轴向左移动,从而在后叉纵向折叠的同时实现了后叉的横向移动。本发明折叠装置可使后叉折叠后位于车架前三角的一侧,任何前三角的结构都可实现后叉纵向折叠,确保了车架的强度和稳固性。


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    Title :

    Rear fork folding device capable of simultaneously achieving longitudinal folding and transverse moving of rear fork


    Additional title:

    一种能同时实现后叉纵向折叠及横向移动的后叉折叠装置


    Contributors:
    LI YANING (author)

    Publication date :

    2021-12-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62K Fahrräder , CYCLES



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