The invention belongs to the technical field of automobile seats, and particularly relates to a back row automobile seat backrest lock structure which comprises a lock ring fixedly installed on an automobile body and a lock body installed on a backrest, a check block is fixedly arranged at the rear end of the upper portion of a first locking cam, a connecting block is fixedly arranged at the rear end of a second locking cam, and the check block is located above the connecting block. A first locking part is fixedly arranged on the rear portion of the lower end of the first locking cam, the lock hook cam is rotationally installed on the second rotating shaft, a locking groove is formed in the lock hook cam, a protruding block is integrally formed in the position, on the rear side of the locking groove, of the upper portion of the lock hook cam, and when the back lock structure is in a locking state, the first locking part abuts against the end portion of the front end of the protruding block. The elastic stretching component is installed at the ends, away from the locking groove, of the first locking cam and the lock hook cam. The back lock structure aims to solve the problems of abnormal sound and loss caused by friction between parts due to structural defects of an existing back lock structure.

    本发明属于汽车座椅技术领域,具体涉及一种后排汽车座椅靠背锁结构,包括固定安装在车体上的锁环和安装在靠背上的锁体,第一锁止凸轮上部的后端固定设有挡块,第二锁止凸轮后端固定设有连接块,挡块位于连接块上方,第一锁止凸轮下端后部固定设有第一锁止部,锁钩凸轮转动安装在第二转动轴上,锁钩凸轮上开设有锁止槽,锁钩凸轮上部于锁止槽后侧一体成型有凸块,当背锁结构处于锁止状态时,第一锁止部顶靠在凸块前端的端部,弹性拉伸部件安装于第一锁止凸轮和锁钩凸轮远离锁止槽的一端。其目的是:解决现有背锁结构的结构缺陷导致的零部件相互之间的摩擦,从而形成异响和损耗的问题。


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    Title :

    Back row automobile seat backrest lock structure and automobile seat


    Additional title:

    一种后排汽车座椅靠背锁结构及汽车座椅


    Contributors:
    LIU LINSEN (author) / MIAO HUI (author)

    Publication date :

    2022-12-02


    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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