Vehicle active head restraint system with a locking linkage

摘要

A vehicle seat is provided with a frame providing structure for a seat back within a vehicle. An active head restraint system is supported by the frame for moving to an extended position when the active head restraint system is activated. The active head restraint system has a linkage to lock in the extended position. A head restraint is oriented above the seat back of the frame. The head restraint is moveable relative to the frame by the active head restraint system to the extended position to provide support to the head of the occupant during an impact condition.