The invention relates to the technical field of automobile safety facilities, in particular to a pre-tensioning safety belt retractor which comprises a mandrel, a mounting seat is arranged on one side of the mandrel, a shaft rod is arranged on the other side of the mandrel, a base is arranged on one side of the mounting seat, a protective shell is arranged on the other side of the base, and a bearing is arranged on the protective shell. Through the arranged piston and the steel cable, when collision occurs, gas generated by the gas generating device drives the piston to move, then the steel cable drives the transmission wheel to continuously move, and a pawl in the transmission wheel can be meshed with a gear ring on a shaft rod for winding a safety belt through limiting of a driving plate; the driving wheel can drive the mandrel to rotate continuously to enable the safety belt to be tightened continuously, a gap between a passenger and the safety belt is eliminated, the passenger is fixed to a seat instantly, and after the safety air bag is inflated and expanded completely, the safety belt retractor is correctly matched with the safety air bag, and the safety of the passenger is protected.

    本发明涉及汽车安全设施技术领域,具体涉及一种预张紧安全带卷收器,包括芯轴,所述芯轴的一侧设置有安装座,所述芯轴的另一侧设置有轴杆,所述安装座的一侧设置有底座,所述底座的另一侧设置有保护壳,所述保护壳上设置有轴承。本发明通过设置的活塞和钢索,碰撞发生时气体发生装置产生的气体带动活塞移动,进而通过钢索带动传动轮持续移动,传动轮内的棘爪通过拨盘的限位能够与收卷安全带的轴杆上的齿圈啮合,使得传动轮能够带动芯轴持续转动使安全带持续收紧,消除乘员与安全带之间的间隙,将乘员瞬间固定在座椅上,等待安全气囊充气膨胀完成,安全带卷收器与安全气囊正确配合,保护乘员安全。


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    Title :

    Pre-tensioning safety belt retractor


    Additional title:

    一种预张紧安全带卷收器


    Contributors:
    XI PENGFEI (author) / YU HONGSHUN (author) / LIU ZHI (author) / JI JINQIU (author)

    Publication date :

    2023-11-10


    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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