US Patent 7878597 Height adjustable head restraint for a vehicle seat

A vehicle seat and vehicle seat head restraint are disclosed having a stop adapted to be mounted to a rod extending from a vehicle seat back. A frame is adapted to be mounted to the rod to slide along the rod. A head restraint foam padding and cover are mounted to the frame for supporting a head of an occupant. A locking mechanism cooperates with the stop and the frame for permitting incremental locking positions of the frame relative to the stop. An actuator cooperates with the locking mechanism for releasing the locking mechanism to slide the head restraint and frame along the rod.