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    • 1. 发明授权
    • Safety belt retractor
    • 安全带卷收器
    • US4319721A
    • 1982-03-16
    • US101006
    • 1979-12-06
    • Takuro KawaiMitsuru Kato
    • Takuro KawaiMitsuru Kato
    • B60R22/40A62B35/02B65H75/48
    • B60R22/40
    • An improved safety-belt retractor to be applied to an automotive vehicle or other vehicles for protecting a wearer from danger caused when the vehicle is suddenly or rapidly decelerated. The disclosed safety-belt retractor comprises a frame, a belt reel rotatably disposed within the frame and a safety-belt wound thereon to allow extraction and retraction of a safety-belt, a ratchet wheel with a plurality of ratchet teeth on the periphery thereof being secured on the belt reel, a locking member movably disposed within the frame opposing to the ratchet wheel and being engageable with the teeth of the ratchet wheel, and an inertia sensing means, including a means for operating the locking member, for interengagement of the locking member and the ratchet wheel so as to lock the extraction, when the vehicle is suddenly or rapidly decelerated. The improvement comprises, in combination, an inertia sensing means supported by a supporting means in horizontally rotatable position, the supporting means includes an elastic member for allowing displacement of the locking member when the latter is moved toward the ratchet wheel and which is deflected by a top of a ratchet tooth to a position apart therefrom, and for accumulating the reaction energy for elastically forcing the locking member toward the ratchet wheel for interengagement therewith.
    • 一种改进的安全带卷收器,其应用于机动车辆或其他车辆,以保护佩戴者避免当车辆突然或快速减速时引起的危险。 所公开的安全带卷收器包括框架,可旋转地设置在框架内的带卷轴和缠绕在其上的安全带,以允许安全带的提取和缩回;具有在其周边上的多个棘轮齿的棘轮 固定在带卷轴上,锁定件可移动地设置在与棘轮相对的框架内并且可与棘轮的齿啮合;以及惯性感测装置,包括用于操作锁定件的装置,用于锁定 构件和棘轮,以便当车辆突然或快速减速时锁定提取。 该改进包括组合地由在水平可旋转位置的支撑装置支撑的惯性感测装置,支撑装置包括弹性构件,用于当锁定构件朝向棘轮移动并且由一个 棘齿的顶部到与其分开的位置,并且用于累积反作用能量以弹性地迫使锁定构件朝向棘轮与其啮合。