Patent ID: 7644987

Claim:
A vehicle seat assembly comprising: a seatback frame having a rearward side; and an active head restraint system operatively supported by said seatback frame, said active head restraint system including an upper armature moveably mounted to said seatback frame, a head restraint mounted to said upper armature, and a lower armature operatively attached to said upper armature, said lower armature including an impact body, at least one coupler having an upper member pivotally mounted to said upper armature and a lower member pivotally mounted to said seatback frame, said upper member pivotally mounted to said lower member and at least one transfer rod operatively mounted to said impact body and said upper armature, said lower armature operable to move toward said rearward side in response to a predetermined force applied to said lower armature, said transfer rod operable to move toward said upper armature in response to a predetermined force applied to said impact body and act on said upper armature to move said head restraint toward the occupant; wherein said lower armature further includes a crossbar operatively mounted to said at least one coupler such that a predetermined force applied to said crossbar causes movement of said at least one coupler toward said rearward side of said seatback frame.