A belt winding drum used for winding a safety belt extends in the axial direction and is rotatably supported in a frame of a retractor, a gear mechanism is installed on one side of the belt winding drum through a force limiting mechanism and comprises a stop wheel and a ball gear which are fixedly connected in the axial direction in a riveting pressing mode, and the stop wheel is rotatably installed on the frame. The ball gear is provided with a penetrating shaft hole, the force limiting mechanism is inserted into the shaft hole in the axial direction to be installed, and the two ends of the force limiting mechanism are connected with the tape winding drum and the gear mechanism correspondingly so that passengers can be prevented from being excessively restrained by achieving the force limiting function. According to the take-up drum assembly, the gear mechanism and the force limiting mechanism are directly assembled to the take-up drum, the steps are simple, few independent parts exist, in addition, the force limiting mechanism is inserted into the shaft hole of the ball gear in the axial direction so that the force limiting mechanism and the gear mechanism can be mostly overlapped in the axial direction, and therefore the size of the whole take-up drum assembly can be smaller.

    本发明涉及一种卷带筒组件,用于缠绕安全带的卷带筒沿轴向延伸并可转动地支撑在卷收器的框架中,齿轮机构通过限力机构安装在卷带筒的一侧并包括沿轴向铆压固连的止动轮和球齿轮,止动轮可转动地安装在该框架上,球齿轮具有贯穿的轴孔,限力机构沿轴向插入该轴孔中安装且其两端分别连接卷带筒和齿轮机构以通过实现限力功能来避免乘员被过度约束。根据本发明的卷带筒组件,齿轮机构和限力机构直接装配到卷带筒,步骤简单,少有独立的部件,另外,限力机构沿轴向插入球齿轮的轴孔中安装以使得限力机构和齿轮机构在轴向上有较大部分重叠,因此,整体卷带筒组件尺寸能够更小。


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    Title :

    Tape winding drum assembly


    Additional title:

    一种卷带筒组件


    Contributors:
    ZHAO WEI (author) / CHEN BIN (author) / HUANG YONGLIANG (author)

    Publication date :

    2024-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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