The invention relates to an electric headrest adjusting mechanism. The mechanism comprises a driving assembly is fixedly connected to a backrest, a support assembly fixedly connected to a headrest, and a lead screw provided with a longitudinal shaft. The lead screw is connected between the driving assembly and the supporting assembly so as to drive the supporting assembly to move along the longitudinal axis through the driving assembly. The supporting assembly comprises a cross beam fixedly connected to the headrest and further comprises a first nut installed in the cross beam through a damping structure, and the lead screw is matched with the first nut to achieve linear motion of the first nut along the longitudinal axis. According to the electric headrest adjusting mechanism, by means ofthe damping structure, the lead screw is installed in a floating mode, shock absorption and energy absorption can be achieved, and the situation that in the prior art, the lead screw is clamped and stagnated can be avoided. Moreover, according to the electric headrest adjusting mechanism, the number of parts is small, and the structure is simple.

    本发明涉及一种电动头枕调节机构,其包括固定连接在靠背上的驱动总成、固定连接在头枕上的支架总成和具有纵轴的丝杆,丝杆连接于驱动总成和支架总成之间以通过驱动总成来带动支架总成沿着纵轴移动,支架总成包括固定连接在头枕上的横梁,支架总成还包括通过阻尼结构安装在横梁中的第一螺母,丝杆和第一螺母配合实现第一螺母沿纵轴的直线运动。根据本发明所述的电动头枕调节机构,借助于阻尼结构,丝杆被浮动安装,其不仅能够减震吸能,而且能够避免现有技术中的丝杆卡滞的情况。而且,根据本发明的电动头枕调节机构,零件数量少,结构简单。


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    Title :

    Electric headrest adjusting mechanism


    Additional title:

    一种电动头枕调节机构


    Contributors:
    ZHANG ZHIHUI (author) / WANG QI (author) / CHEN JINGHUI (author) / ZHUANG WEIQING (author) / CHANG JIAN (author)

    Publication date :

    2020-07-10


    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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