Locking junction ring for continuous-loop passive seat belt system

摘要

A load locking junction device for coupling a continuous-loop belt having ends mounted on the door with an anchor belt retractably mounted inboard the seat includes a frame having an aperture defining spaced apart first and second load bearing walls. The continuous-loop belt is slidable over the first wall to define a lap belt portion and a shoulder belt portion. The anchor belt extends through the aperture and has a pin engaged in the end thereof to enlarge the end for simultaneous engagement against the second wall and the continuous-loop belt so that the belts are coupled together and maintained in engagement with the load bearing walls. A spring acts on the pin to space the anchor belt from the continuous-loop belt to permit movement of the continuous-loop belt through the frame. The imposition of oppositely directed occupant restraining loads on the continuous-loop belt and the anchor belt causes the enlarged anchor belt end to forcefully clamp the continuous-loop belt against the first wall whereby the relative restraining lengths of the lap belt and the shoulder belt portions are fixed. Disconnecting a buckle provided at one end of the continuous-loop belt terminates the occupant restraining load so that the clamping effort is terminated and the continuous-loop belt may pass freely through the junction ring to permit opening movement of the door and occupant egress.