Pretensioner, seat belt retractor having the same, and seat belt apparatus provided therewith
    21.
    发明申请
    Pretensioner, seat belt retractor having the same, and seat belt apparatus provided therewith 有权
    预张紧器,具有该预紧器的安全带卷收器和与其配套的座椅安全带装置

    公开(公告)号:US20100276531A1

    公开(公告)日:2010-11-04

    申请号:US12659479

    申请日:2010-03-10

    IPC分类号: B60R22/46

    CPC分类号: B60R22/4628 B60R2022/4642

    摘要: A seat belt pretension with improved piston sealing performance. A piston has an expanding section formed at one end thereof contacting a force transmission component. When gas pressure resulting from reactive gas generated by a gas generator causes the piston to exert a pressing force on the force transmission component in the event of an emergency, the expanding section expands toward the inner circumferential surface of a pipe due to the gas pressure. As a result, the outer circumferential surface of the expanding section in the piston comes into contact with the inner circumferential surface of the pipe in a more efficient manner, resulting in enhanced sealing between the piston and the inner circumferential surface of the pipe. This prevents reactive gas from losing gas pressure, thereby allowing the gas pressure to more efficiently act on the piston.

    摘要翻译: 安全带预张力,改善活塞密封性能。 活塞的一端形成有与力传递部件接触的扩张部。 当由气体发生器产生的反应性气体产生的气体压力导致活塞在紧急情况下对力传递部件施加压力时,膨胀部分由于气体压力而向管的内周面膨胀。 结果,活塞中的扩张部的外周面更有效地与管的内周面接触,导致活塞与管的内周面之间的密封增强。 这防止了反应气体损失气体压力,从而允许气体压力更有效地作用在活塞上。

    Seat belt retractor and seat belt device equipped with the same
    22.
    发明授权
    Seat belt retractor and seat belt device equipped with the same 有权
    安全带卷收器和安全带装置配备相同

    公开(公告)号:US07152824B2

    公开(公告)日:2006-12-26

    申请号:US10815935

    申请日:2004-04-02

    IPC分类号: B65H75/48

    摘要: A seat belt retractor includes a spool for winding a seat belt; a locking mechanism having a locking member rotating with the spool in a normal state and being locked not to rotate in a direction of unwinding the seat belt in an emergency state; and an energy absorbing mechanism provided between the spool and the locking member for absorbing impact energy applied on an occupant when the spool rotates in the direction of unwinding the seat belt relative to the locking member in the emergency state. The energy absorbing mechanism includes an energy absorbing member provided in one of the spool and the locking member, and a deforming device provided in the other of the spool and the locking member for deforming the energy absorbing member. The energy absorbing member has a width partially varied.

    摘要翻译: 安全带卷收器包括用于卷绕安全带的卷轴; 锁定机构,其具有与所述线轴一起旋转的锁定构件处于正常状态,并且在紧急状态下被锁定不能沿所述安全带展开的方向旋转; 以及设置在所述卷轴和所述锁定构件之间的能量吸收机构,用于吸收当所述卷轴在紧急状态下沿着使所述安全带相对于所述锁定构件展开的方向旋转时施加在乘员身上的冲击能量。 能量吸收机构包括设置在卷轴和锁定构件中的一个中的能量吸收构件,以及设置在卷筒中的另一个中的变形装置和用于使能量吸收构件变形的锁定构件。 能量吸收构件的宽度部分变化。