The invention relates to the technical field of automobile seats, in particular to an automobile seat backrest adjusting device which comprises a guide rail plate and a lock catch assembly. The guide rail plate is provided with a plurality of clamping grooves which are sequentially arranged in the guiding direction and are evenly spaced. The lock catch assembly comprises a retaining ring base, a retaining ring, clamping pins, an opening lever and an elastic piece, the three clamping pins are sequentially arranged on the retaining ring base and can axially move, the retaining ring base is arranged on the guide rail plate in a sliding mode, and the opening lever is rotationally connected to the retaining ring base and used for lifting the clamping pins. The three clamping pins are arranged to be matched with the clamping grooves in the guide rail plate, adjustment of more gears is achieved, the use requirement of a user is met, meanwhile, the reliability when the lock catch assembly and the guide rail plate are locked is improved, and abnormal sound generated by relative shaking of the lock catch assembly and the guide rail plate can be eliminated; In addition, the lock catch assembly is arranged to enable balls to be in contact with the guide rail plate, friction resistance is reduced, and abrasion and noise are reduced.

    本发明涉及汽车座椅技术领域,尤其涉及一种汽车座椅靠背调节装置,包括导轨板和锁扣总成。其中,导轨板开设有若干个沿导向方向依次布置且间隔均匀的卡槽;锁扣总成包括扣环底座、扣环、卡销、开启杠杆和弹性件,三根卡销依次设于扣环底座并能够轴向移动,扣环底座滑动设于导轨板,开启杠杆转动连接于扣环底座用于抬起卡销。本发明通过设置三根卡销与导轨板上的卡槽配合,实现更多档位的调节,满足用户的使用需求,同时,提高锁扣总成与导轨板锁定时的可靠性,并有助于消除锁扣总成与导轨板相对晃动产生的异响;另外,设置锁扣总成设置滚珠与导轨板接触,减少摩擦阻力,降低磨损和噪音。


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    Title :

    Automobile seat backrest adjusting device


    Additional title:

    一种汽车座椅靠背调节装置


    Contributors:
    SHI CONG (author)

    Publication date :

    2021-06-25


    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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