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12 条记录 (耗时 0.015 秒)

    Retractable safety belts
    7.
    发明授权
    Retractable safety belts 失效

    公开(公告)号：US3926385A

    公开(公告)日：1975-12-16

    申请号：US45235174

    申请日：1974-03-18

    申请人： BOARD RICHARD G ,  SHAPIRO NELSON H

    发明人： BOARD RICHARD G ,  SHAPIRO NELSON H

    IPC分类号： B60R22/347 ,  B60R22/353 ,  B65H75/48

    CPC分类号： B60R22/353 ,  B60R2022/3475

    摘要： Retractable safety belt apparatus in which a strap is extended from a reel to a selected length and in which the apparatus is thereafter locked automatically to prevent further extension of the strap. Disclosed are: various mechanisms for controlling the operation of the extension-preventing device, including mechanisms driven by the reel and mechanisms responsive to strap tension; different types of strap claimps which open automatically during retraction of the strap and close automatically after desired extension of the strap, including a slider clamp and a clamp with a unidirectionally rotating clamp element; mechanisms which facilitate retraction of the strap; a mechanism which temporarily disables the extension-preventing device to permit the user to lengthen the belt after it has been fastened; and a belt fastener which ensures by a over-movement of fastener elements that the extended strap will always retract a bit after the belt is fastened.