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。

公开(公告)号：US06183015B2

公开(公告)日：2001-02-06

申请号：US09580918

申请日：2000-05-26

申请人： Alan Smithson ,  David Blackadder ,  John Taylor ,  Andrew Downie ,  Joe Harte ,  Andrew Park ,  Elizabeth Rees

发明人： Alan Smithson ,  David Blackadder ,  John Taylor ,  Andrew Downie ,  Joe Harte ,  Andrew Park ,  Elizabeth Rees

IPC分类号： B60R2228

CPC分类号： C08L23/0815 ,  B60R22/28 ,  B60R22/3413 ,  B60R2022/282 ,  B60R2022/288 ,  C08L23/16 ,  C08L53/00 ,  C08L2205/22 ,  C08L2207/20 ,  C08L2312/00 ,  C08L2666/04

摘要： A load limiting device is used with a vehicle seat belt during a crash to allow a limited and controlled forward motion of a vehicle occupant after the retractor has locked. The load limiting device decreases the forces exerted by the seat belt on the vehicle occupant's torso. The load limiting device has a container which defines a flow path for a fluid, with a restriction in the flow path. An actuator is located within the container and is movable within the container under the action of a load transmitted to the seat belt webbing from the vehicle occupant under extreme acceleration conditions, to move the fluid through the restriction in the flow path to dissipate a predetermined portion of the load on the webbing.

公开(公告)号：US06168205A

公开(公告)日：2001-01-02

申请号：US09579888

申请日：2000-05-26

申请人： Alan Smithson ,  David Blackadder ,  John Taylor ,  Andrew Downie ,  Joe Harte ,  Andrew Park ,  Elizabeth Rees

发明人： Alan Smithson ,  David Blackadder ,  John Taylor ,  Andrew Downie ,  Joe Harte ,  Andrew Park ,  Elizabeth Rees

IPC分类号： B60R2228

CPC分类号： C08L23/0815 ,  B60R22/28 ,  B60R22/3413 ,  B60R2022/282 ,  B60R2022/288 ,  C08L23/16 ,  C08L53/00 ,  C08L2205/22 ,  C08L2207/20 ,  C08L2312/00 ,  C08L2666/04

摘要： A load limiting device is used with a vehicle seat belt during a crash to allow a limited and controlled forward motion of a vehicle occupant after the retractor has locked. The load limiting device decreases the forces exerted by the seat belt on the vehicle occupant's torso. The load limiting device has a container which defines a flow path for a fluid, with a restriction in the flow path. An actuator is located within the container and is movable within the container under the action of a load transmitted to the seat belt webbing from the vehicle occupant under extreme acceleration conditions, to move the fluid through the restriction in the flow path to dissipate a predetermined portion of the load on the webbing.

公开(公告)号：US6102439A

公开(公告)日：2000-08-15

申请号：US164840

申请日：1998-10-01

申请人： Alan Smithson ,  David Blackadder ,  John Taylor ,  Andrew Downie ,  Joe Harte ,  Andrew Park ,  Elizabeth Rees

发明人： Alan Smithson ,  David Blackadder ,  John Taylor ,  Andrew Downie ,  Joe Harte ,  Andrew Park ,  Elizabeth Rees

IPC分类号： B60R22/28 ,  B60R22/34 ,  C08L23/08 ,  C08L23/16 ,  C08L53/00

CPC分类号： C08L23/0815 ,  B60R22/28 ,  B60R22/3413 ,  B60R2022/282 ,  B60R2022/288 ,  C08L2205/22 ,  C08L2207/20 ,  C08L23/16 ,  C08L2312/00 ,  C08L53/00

摘要： A load limiting device is used with a vehicle seat belt during a crash to allow a limited and controlled forward motion of a vehicle occupant after the retractor has locked. The load limiting device decreases the forces exerted by the seat belt on the vehicle occupant's torso. The load limiting device has a container which defines a flow path for a fluid, with a restriction in the flow path. An actuator is located within the container and is movable within the container under the action of a load transmitted to the seat belt webbing from the vehicle occupant under extreme acceleration conditions, to move the fluid through the restriction in the flow path to dissipate a predetermined portion of the load on the webbing.

摘要翻译： 负载限制装置在碰撞期间与车辆安全带一起使用，以允许在牵开器锁定之后车辆乘员的有限和可控的向前运动。 负载限制装置减少由安全带施加在车辆乘员躯干上的力。 负载限制装置具有限定用于流体的流动路径的容器，并且在流动路径中具有限制。 致动器位于容器内，并且在极限加速条件下，在从车辆乘员传递到座椅安全带织带的负载作用下，在容器内可移动，以使流体移动通过流动路径中的限制，从而消散预定部分 的织带上的负载。