Patent ID: 7377590

Claim:
A vehicle passenger seat restraint system comprising: a passenger seat and a passenger seat frame for mounting in a vehicle; a three point seat belt including a lap belt and a torso belt for passing over one shoulder of a seat occupant to a point of connection with the lap belt; an anchor point on the passenger seat frame; a belt retractor connected to the torso belt at the end distal to the point of connection between the torso belt and the lap belt, the belt retractor being located relative to the passenger seat frame to allow withdrawal of the torso belt from the passenger seat for wearing and the belt rectractor being displacable relative to the passenger seat frame in the direction of withdrawal of the torso belt from the belt retractor when acceleration of the torso belt results in locking of the belt retractor; a spring attached between the belt retractor and the anchor point to absorb energy upon displacement of the belt retractor in the direction of withdrawal of the torso belt; and a displacement limiting linkage attached between the belt retractor and the anchor point.