The invention relates to an automobile seat electric sliding rail and a method for resisting lead screw deformation after collision of the sliding rail. A pair of symmetrically-arranged limiting grooves are formed in two opposite upper sliding rail vertical surfaces of upper sliding rails; a protrusion matched with each limiting groove is arranged on a gearbox support; the protrusion is provided with a positioning shoulder; and when the gearbox support is installed in the upper sliding rails, the protrusion is clamped in each limiting groove, the positioning shoulder abuts against the top wall face of each limiting groove, and in the moving direction of the upper sliding rails, the protrusion and each limiting groove are installed in an interference fit mode. According to the method for resisting deformation of a lead screw after collision, when collision occurs, impact force borne by the upper sliding rails can be conducted to the gearbox support, and due to the fact that the top of the gearbox support is fixedly connected with the upper sliding rails, the protrusion arranged at the bottom of the gearbox support is clamped in each limiting groove of each upper sliding rail, Therefore, fixed connection points exist between the top and the bottom of the gearbox support and the upper sliding rails, the gearbox support is even in stress, the lower portion of the gearbox support cannot generate displacement due to deformation, and then the lead screw cannot be bent and deformed.

    本发明涉及一种汽车座椅电动滑轨及其碰撞后抗丝杆变形的方法,上滑轨的两相对上滑轨竖面上开设一对对称布置的限位槽;在变速箱支架上设置有与限位槽配合的凸起;凸起具有一定位肩;变速箱支架安装在上滑轨内时,凸起卡装在限位槽中,且定位肩抵靠住限位槽的顶壁面,在上滑轨的移动方向上,凸起与限位槽为过盈配合安装。碰撞后抗丝杆变形的方法:发生碰撞时,上滑轨受到的冲击力会传导至变速箱支架,由于变速箱支架的顶部与上滑轨固定连接,变速箱支架的底部设置的凸起卡装在上滑轨的限位槽中,故变速箱支架的顶部与底部均与上滑轨存在固定连接点,因此变速箱支架受力均匀,其下部不会因变形而产生位移,进而不会使丝杆产生折弯变形。


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    Title :

    Automobile seat electric sliding rail and method for resisting lead screw deformation after collision of sliding rail


    Additional title:

    汽车座椅电动滑轨及其碰撞后抗丝杆变形的方法


    Contributors:
    YU LONGSHENG (author) / LI DANGSHENG (author) / ZHU WEIRONG (author) / FAN DAOMING (author)

    Publication date :

    2021-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



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