The invention discloses a seat backrest angle adjusting structure with buffering and damping functions, which is characterized in that a hinge bracket, a torsion spring, a mounting bracket and a volute spiral spring are sequentially sleeved on a backrest rotating shaft from inside to outside, the hinge bracket is fixed with the backrest rotating shaft, the mounting bracket is in running fit with the backrest rotating shaft, and the inner end of the volute spiral spring is clamped on the backrest rotating shaft; the outer end of the volute spiral spring is hooked on the mounting bracket, one end of the torsional spring is fixed on the hinge bracket, the other end of the torsional spring is fixed on the mounting bracket, and when the backrest is forwards overturned to the cushion from the use position, the torsional spring can be changed into a compressed state from a stretched state. When the backrest is forwards overturned to the seat cushion from the using position, driving force in the same direction as the volute spiral spring can be provided in the initial overturning stage to assist the backrest in forwards overturning to a certain angle, resistance in the reverse direction of the volute spiral spring is provided in the subsequent stage, the overturning speed of the backrest is reduced, and therefore abnormal sound is prevented from being generated, and people are prevented from being hurt by the backrest.

    本发明公开了一种具有缓冲阻尼功能的座椅靠背角度调节结构,铰链支架、扭簧、安装支架和涡卷簧由内向外依次套装在靠背转轴上,铰链支架与靠背转轴固定,安装支架与靠背转轴为转动配合,涡卷簧的内端卡在靠背转轴上,涡卷簧的外端勾挂在安装支架上,扭簧的一端固定在铰链支架上,扭簧的另一端固定在安装支架上,当靠背由使用位置向前翻转至坐垫上时,扭簧能由拉伸状态变为压缩状态。在靠背由使用位置向前翻转至坐垫上时,本发明既能在翻转初始阶段提供与涡卷簧同向的驱动力辅助靠背向前翻转到一定角度,并在后续阶段提供与涡卷簧反向的阻力,降低靠背的翻转速度,从而防止异响产生,避免靠背伤人。


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    Titel :

    Seat backrest angle adjusting structure with buffering and damping functions


    Weitere Titelangaben:

    具有缓冲阻尼功能的座椅靠背角度调节结构


    Beteiligte:
    LUO GANG (Autor:in) / LI DAIFENG (Autor:in) / HU WENHUA (Autor:in) / LI YONGYI (Autor:in)

    Erscheinungsdatum :

    2022-04-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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