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    • 34. 发明授权
    • Seat belt retractor
    • 安全带卷收器
    • US4322046A
    • 1982-03-30
    • US196567
    • 1980-10-14
    • Katsuyuki TanakaSatosi KuwakadoNoboru TsugeToshiaki Shimogawa
    • Katsuyuki TanakaSatosi KuwakadoNoboru TsugeToshiaki Shimogawa
    • B60R22/28B60R22/34B60R22/40A62B35/02
    • B60R22/3413B60R2022/287B60R22/40
    • A seat belt retractor to be installed in a seat belt system of a vehicle for restraining an occupant on his seat by a seat belt in an emergency, comprises a reel, a torsion bar, one end of which is connected to the reel so as to be rotated therewith, the other end of which is formed into a locking portion, a lock member to be engaged with the locking portion for locking the other end of the torsion bar in an emergency and a stopper means which is disposed between the reel and the torsion bar for stopping the rotation of the reel. In an emergency such as upon an impact of the vehicle, the lock member operates to lock the other end of the torsion bar. The torsion bar of which one end is connected to the rotating reel is twisted to absorb the impact energy of an occupant. And before the torsion bar is broken, the stopper means operates to stop the rotation of the reel. Therefore, even if a large tension force is applied to the seat belt, the torsion bar is not broken due to the twisting thereof.
    • 安装在车辆安全带系统中的安全带卷收器,用于在紧急情况下通过安全带限制乘客在座位上的位置,包括卷轴,扭杆,其一端连接到卷轴,以便 与其一起旋转,其另一端形成锁定部分,锁紧部件与锁定部分接合,用于在紧急情况下锁定扭杆的另一端;以及止动装置,其设置在卷轴和 用于停止卷轴旋转的扭杆。 在紧急情况下,例如在车辆撞击时,锁定件操作以锁定扭力杆的另一端。 其一端连接到旋转卷轴的扭杆被扭曲以吸收乘员的冲击能量。 并且在扭杆断裂之前,止动装置操作以停止卷轴的旋转。 因此,即使对安全带施加大的张力,扭力杆也不会因扭转扭曲而断裂。