公开(公告)号：US08678440B1

公开(公告)日：2014-03-25

申请号：US13722367

申请日：2012-12-20

Applicant: Autoliv ASP, Inc.

Inventor： Kenneth Kohlndorfer ,  Chris Koprowicz ,  Jon E. Burrow ,  Chad E. Moore ,  Bin Wang

IPC: B60R22/36

CPC classification number: B60R22/4633 ,  B60R2022/3424

Abstract: A dual spool retractor device for seat belts in a motor vehicle including a frame, two spools rotatably mounted to the frame, and a pretensioning system providing pretensioning rotation for both the spools. The spools are pretensioning through the activation of a micro-gas generator. The gas generator can provide gas to a single or a pair of gas cylinders. One or more flexible numbers such as a metal band or cable is used which is coupled to one or both spools via a pulley. Activation of the gas generator forces a piston to move in a manner which exerts tension on the flexible member(s) thereby unwinding the flexible member from the spool pulley and providing pretensioning rotation of the respective belt spool.

Abstract translation: 一种用于机动车辆中的安全带的双线轴牵开器装置，包括框架，可旋转地安装到框架上的两个线轴和为两个线轴提供预张紧旋转的预张紧系统。 线轴通过微气体发生器的激活而预张紧。 气体发生器可以向单个或一对气瓶提供气体。 使用一个或多个柔性数字，例如金属带或电缆，其通过滑轮联接到一个或两个线轴。 气体发生器的激活迫使活塞以在弹性构件上施加张力的方式移动，从而使弹性构件从卷轴滑轮展开并且提供相应皮带卷轴的预张紧旋转。