The invention relates to a telescopic rotating mechanism for an electric handrail. The device mainly comprises a cylindrical cam with a gear, a fixed sleeve, a pin A, a pin B, a rotating shaft and a motor, the cylindrical cam with the gear is matched with the fixed sleeve, the fixed sleeve and the stepped hollow shaft limit other degrees of freedom of the cylindrical cam with the gear together, and only the rotational degree of freedom of the cylindrical cam with the gear is reserved; the cylindrical cam with the gear is provided with a deflection gear and a track groove C; a track groove A and a track groove B are formed in the rotating shaft in sequence from right to left; a pin B is fixed on the rotating shaft and moves relative to a track groove C in the cylindrical cam with the gear; and the pin A is fixed on the fixed sleeve, linearly moves relative to the track groove A and rotationally moves relative to the track groove B. The armrest can be located on the rear side portion of the backrest of the seat and can automatically stretch out and rotate, the occupied space is reduced, the armrest can be retracted from the back of the seat to enter and exit conveniently, the armrest can be rotationally and flatly placed beside the seat, and comfort is improved.

    本发明涉及一种电动扶手用伸缩旋转机构;主要由带齿轮筒形凸轮、固定套筒、销A、销B、旋转轴、电机组成;带齿轮筒形凸轮与固定套筒配合,固定套筒与阶梯空心轴一起限制带齿轮筒形凸轮的其他自由度,只保留带齿轮筒形凸轮的旋转自由度;带齿轮筒形凸轮设有变位齿轮和轨迹槽C;旋转轴上设有轨迹槽,从右向左依次为轨迹槽A、轨迹槽B;销B固定在旋转轴上,销B相对于带齿轮筒形凸轮上的轨迹槽C运动;销A固定在固定套筒上,销A相对于轨迹槽A直线运动,相对于轨迹槽B旋转运动。本发明可实现将扶手位于座椅靠背后侧部,自动伸出并转动,减少占用空间,扶手从座椅背后收缩进出方便,并可旋转平放在座椅旁侧,提高了舒适性。


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    Title :

    Telescopic rotating mechanism for electric handrail


    Additional title:

    一种电动扶手用伸缩旋转机构


    Contributors:
    ZHAN LEI (author) / XING QIAOFANG (author) / LI YONGSHENG (author) / YANG JIAO (author)

    Publication date :

    2022-04-29


    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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