Automatic locking tether for vehicle seat

摘要

A passenger restraint with an automatic locking tether. A three point belt assembly includes a retractor mounted to the vehicle with the belt extendable therefrom having an outer end attached to a bracket movably mounted to a first automatic locking tether. A buckle mounted to the opposite side of the seat is movably mounted to a second automatic locking tether secured to the seat. Both tethers include a cam member pivotally mounted thereto having a locking pad movable against a web extending into the tether. One end of the web is fastened to the vehicle whereas the opposite end of the web is attached to a spring biased reel. A spring urges the pad apart from the web allowing for vertical and horizontal adjustment of the seat. Passenger loading during a crash moves the cam member with pad against the web anchoring the tether and seat to the vehicle floor via the web. The spring biased reel is slidably mounted to move toward the cam member when all of the web is fully withdrawn therefrom with the reel then contacting the cam member forcing the locking pad against the web and limiting further web pressure against the reel.