The embodiment of the invention provides a waist safety belt pre-tightening device and an automobile seat, and the pre-tightening device comprises a housing fixed on an automobile body; one end of the air cylinder is fixed on the housing; the piston is arranged in the air cylinder in a sliding manner and is connected with the safety belt through a connecting piece; the gas generator is mounted on the housing and is used for generating pretightening force, generating gas to act on the piston after being started, pushing the piston to move in the air cylinder, and pulling the safety belt through the connecting piece so as to eliminate a gap between a passenger and the safety belt; a weight detection unit for detecting the weight of the occupant; and the control part is used for adjusting the output of the gas generator according to the passenger weight detected by the weight detection part so as to provide different degrees of pre-tightening force. The body weight of a passenger is detected through the body weight detection part, and the control part controls and adjusts the gas output quantity of the gas generator according to the body weight of the passenger, so that different pre-tightening forces are provided according to the body weight of the passenger when the safety belt is pre-tightened.

    本说明书实施例提供一种腰部安全带预紧装置及汽车座椅,预紧装置包括:罩壳,固定在车身;气缸,一端固定在罩壳上;活塞,可滑动的设置在气缸内,通过连接件与安全带相连接;气体发生器,安装在罩壳上,用于产生预紧力,启动后产生气体作用于活塞,推动活塞在气缸内移动,通过连接件拉动安全带以消除乘员与安全带的间隙;体重检测部,用于检测乘员的体重;控制部,根据体重检测部检测到的乘员体重,调整气体发生器输出,以提供不同程度的预紧力。通过体重检测部对乘员体重进行检测,控制部根据乘员体重控制调整气体发生器的气体输出量,以实现在安全带预紧时根据乘员体重提供不同的预紧力。


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    Title :

    Waist safety belt pre-tightening device and automobile seat


    Additional title:

    一种腰部安全带预紧装置及汽车座椅


    Contributors:
    WEI GUOFANG (author)

    Publication date :

    2022-10-11


    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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