Patent ID: 8157328

Claim:
A vehicle head restraint system for a vehicle seat comprising: a support rod adapted to be mounted to a vehicle proximate to the vehicle seat, the support rod having a lateral portion; a head restraint moveable relative to the lateral portion in a fore/aft direction; a first locking plate movably mounted to the head restraint to engage the support rod to lock the head restraint relative to the support rod in one of an intermediate position and an extended position; a second locking plate movably mounted to the head restraint to engage the support rod to lock the head restraint relative to the support rod in one of the intermediate position and the extended position; a rotary link pivotally connected to the head restraint and interconnecting the first locking plate and the second locking plate; a biasing member mounted between the support rod and at least one of the first locking plate and the second locking plate to bias the head restraint towards a retracted position; and an actuator provided on the head restraint to move one of the first locking plate and the second locking plate such that the rotary link moves the other of the first locking plate and the second locking plate for disengaging the first and second locking plates from the support rod so that the biasing member biases the head restraint towards the retracted position.