The invention relates to a safety belt retractor, comprising a rotatably supported reel (3), which is designed for winding a webbing, a pre-tensioning device (10), which is designed for driving the reel in a webbing winding direction when the reel is activated in such a way that the webbing is pre-tensioned, and a force limiting device (20), which is designed for limiting the tension of the webbing in the webbing winding direction when the reel is activated in such a way that the webbing is pre-tensioned in the webbing winding direction when the reel is activated in the webbing winding direction. The pre-tightening device is provided with a driving component and a driven wheel (2), the force limiting device is used for limiting the pulling force of the woven belt when the woven belt is pulled out of the belt winding drum, and the driven wheel is connected with the belt winding drum in an anti-torque mode. The anti-torque connection of the driven wheel to the tape drum is released when a predetermined torque threshold value of the tape drum relative to the driven wheel in the tape pull-out direction is exceeded. According to the safety belt retractor, a good pre-tightening function and a good force limiting function can be achieved, and the problem of pre-tightening overload is at least partially solved.

    本发明涉及一种安全带卷收器,其包括可转动地支撑的卷带筒(3)、预紧装置(10)和限力装置(20),所述卷带筒构造成用于缠绕织带,所述预紧装置构造成用于在其被激活时在织带卷收方向上驱动卷带筒,以使得织带被预紧,所述预紧装置具有驱动构件和从动轮(2),所述限力装置构造成用于在织带从卷带筒拉出时限制织带的拉力,所述从动轮与卷带筒抗扭连接,其中,所述从动轮与卷带筒的抗扭连接在超过卷带筒相对于从动轮在织带拉出方向上的预定的转矩阈值时松开。该安全带卷收器可以实现良好的预紧功能和限力功能,至少部分地解决预紧过载的问题。


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    Title :

    Safety belt retractor


    Additional title:

    安全带卷收器


    Contributors:

    Publication date :

    2022-06-24


    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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