Passive seat belt system for an automotive vehicle with tilting seats

摘要

A passive seat belt system includes a mechanical linkage between the seat back and a guide member which holds the belt in an appropriate operating position. The linkage serves to move the guide member forward as the seat back is tilted forward, to move the guide member to its normal working position when the seat back is moved to its normal upright position, and to hold the guide member in its working position as the seat back is tilted backwards. The mechanical linkage includes a linkage lever, of which one end is pivotably attached to the seat back and the another end constitutes a contoured lost-motion linkage engaging the pivotable guide member. The lost-motion linkage is designed to actuate movement of the guide member when the seat back moves within the forward moiety of its reclining range, and to be only slackly engaged with the guide member when the seat back is moved in the portion of its reclining range rearward of its normal upright position. A stop holds the guide member in its working position in the latter case.