公开(公告)号：US06460935B1

公开(公告)日：2002-10-08

申请号：US09445049

申请日：2000-02-23

申请人： Elizabeth Rees ,  Alan George Smithson ,  David Burke ,  Andrew John Downie ,  Carlo Martellini ,  Richard Harman ,  David Blackadder

发明人： Elizabeth Rees ,  Alan George Smithson ,  David Burke ,  Andrew John Downie ,  Carlo Martellini ,  Richard Harman ,  David Blackadder

IPC分类号： A47C3100

CPC分类号： B60R22/1952

摘要： A buckle pretensioner for a vehicle safety restraint comprising a buckle head (1) for receiving a buckle tongue to secure safety restraint webbing about a vehicle occupant in a three-point belt system; a cable (2) connected to the buckle head (1); and device (7) for rapidly withdrawing the cable in a belt tightening direction, the withdrawing device (7) comprising a force reservoir (8), and driving mechanism (6), and being of a compact construction through the use of set-up gearing (3,4) to magnify linear movement produced by the force reservoir (8) which may be a pyrotechnic gas generator or a spring. The driving mechanism (8) may be a piston-cylinder (6,8) or a rack and pinion. The gearing may comprise a pulley arrangement (3,4). Alternatively a roots motor or a gear pump could be used.

摘要翻译： 一种用于车辆安全限制器的带扣预紧器，包括用于接收带扣舌片的带扣头（1），以在三点带系统中固定关于车辆乘员的安全约束带; 连接到所述带扣头（1）的电缆（2）; 以及用于在带紧固方向上快速拉出电缆的装置（7），所述抽出装置（7）包括力储存器（8）和驱动机构（6），并且通过使用设置而具有紧凑的结构 传动（3,4）以放大由力储存器（8）产生的线性运动，其可以是烟火气体发生器或弹簧。 驱动机构（8）可以是活塞缸（6,8）或齿条和小齿轮。 传动装置可以包括滑轮装置（3,4）。 或者可以使用根马达或齿轮泵。

公开(公告)号：US06260782B1

公开(公告)日：2001-07-17

申请号：US09117163

申请日：1999-05-20

申请人： Alan G. Smithson ,  David Blackadder ,  Andrew Park ,  John Taylor ,  Carlo Martellini ,  Andrew Wood ,  Martyn Palliser

发明人： Alan G. Smithson ,  David Blackadder ,  Andrew Park ,  John Taylor ,  Carlo Martellini ,  Andrew Wood ,  Martyn Palliser

IPC分类号： B65H7548

CPC分类号： B60R22/341 ,  B60R22/3413 ,  B60R22/4676 ,  B60R2022/282 ,  B60R2022/285 ,  B60R2022/286 ,  B60R2022/288

摘要： Force limitation in retractors is needed to avoid injury to an occupant from the seat belt itself particularly at high crash impact loads. The invention provides a seat belt retractor comprising a spool including force limiting means for allowing further payout of the seat belt webbing after the spool has locked, under the influence of an occupant's forward momentum in the crash condition. In one aspect the force limiting means is provided by a plurality of fins provided on the outer surface of the spool, each fin having a section which extends in a generally radial direction and a section which extends circumferentially, the circumferentially extending section of one fin overlapping the circumferentially extending section of an adjacent fin and supported by the radial extending section of that adjacent fin, so that a force tending to tighten the webbing on the spool, acts in a direction to crush the radial sections of the fins and to slide the circumferential sections over each other, thus reducing the effective outer circumference of the spool. In another aspect the force limiting means comprises an energy absorbing member connecting the spool to the spool shaft, the connection being rigid below a predetermined force, and above the predetermined force there being relative rotation of the spool with respect to the spool shaft to allow pay-out of belt webbing.

摘要翻译： 需要对牵引器施加限制力，以避免乘员从安全带本身受到伤害，特别是在高碰撞冲击载荷下。 本发明提供了一种安全带卷收器，其包括一个线轴，该线轴包括力限制装置，用于在所述滑车锁定之后，在所述碰撞状态下乘客的向前动量的影响下，进一步支承所述安全带安全带。 在一个方面，力限制装置由设置在卷轴的外表面上的多个翅片提供，每个翅片具有沿大致径向延伸的部分和沿周向延伸的部分，一个翅片的周向延伸部分重叠 相邻翅片的周向延伸部分并且由相邻翅片的径向延伸部分支撑，使得趋向于紧固卷轴上的织带的力作用在挤压翅片的径向部分的方向上，并且使圆周方向 从而减小了线轴的有效外圆周。 在另一方面，力限制装置包括能量吸收构件，该能量吸收构件将线轴连接到线轴，该连接处刚性低于预定的力，并且高于预定的力，其中线轴相对于线轴相对旋转以允许支付 - 腰带织带。