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    • 38. 发明授权
    • Emergency locking retractor for vehicle seat belts
    • 汽车安全带应急锁紧牵引器
    • US4057200A
    • 1977-11-08
    • US704104
    • 1976-07-09
    • Susumu UbukataShozo IyodaKenji Oda
    • Susumu UbukataShozo IyodaKenji Oda
    • B60R22/40A62B35/02B65H75/48
    • B60R22/40
    • A seat belt retractor incorporates a fail-safe locking mechanism that is actuated by vehicle acceleration to lock a retractor drum against rotation in the belt unwinding direction. A pair of locking wheels are arranged coaxially with the drum for simultaneous rotation therewith, and a detent movable into and out of engagement with both locking wheels is biased, by biasing means such as a spring, into engagement therewith. Normally, the detent is restrained from engagement with the locking wheels against the force of the biasing means by an actuator associated with an inertial element constituting a part of acceleration sensing means. Upon displacement of the inertial element from its normal position of rest, the actuator permits the detent to move into engagement with the locking wheels by the force of the biasing means.
    • 安全带卷收器包括故障安全锁定机构,该机构由车辆加速度驱动,以将卷收器滚筒锁定在带退绕方向上的旋转。 一对锁定轮与滚筒同轴地布置以与之同时旋转,并且通过诸如弹簧的偏置装置将两个锁定轮移动进入和离开接合的制动器被偏置成与其接合。 通常,通过与构成加速度感测装置的一部分的惯性元件相关联的致动器,制动器克服着偏置装置的力而限制与锁定轮接合。 当惯性元件从其正常的静止位置移动时,致动器允许制动器通过偏置装置的力而移动到与锁定轮的接合。