Patent ID: 8894144

Claim:
A vehicle seat assembly for receiving an occupant, the seat assembly comprising: a seatback frame; an upper cross bar that is movable relative to the seatback frame; a head restraint mounted on the upper cross bar; an impact body that is movable relative to the seatback frame; a linkage assembly operatively associated with the upper cross bar and the impact body such that movement of the impact body relative to the seatback frame acts on the linkage assembly to move the upper cross bar relative to the seatback frame to thereby cause the head restraint to move upward and forward toward the occupant, the linkage assembly including a linkage movably connected to the seatback frame, a first coupler member movably connected to the linkage, and a second coupler member movably connected to the first coupler member and movably connected to the seatback frame; an additional linkage assembly operatively associated with the upper cross bar and the impact body, the additional linkage assembly including an additional linkage movably connected to the seatback frame, an additional first coupler member movably connected to the additional linkage, and an additional second coupler member movably connected to the additional first coupler member and movably connected to the seatback frame; the linkage being pivotally connected to the seatback frame at a first location, directly connected to the upper cross bar at a second location, and pivotally connected to the first coupler member at a third location, and the additional linkage being pivotally connected to the seatback frame at a fourth location, directly connected to the upper cross bar at a fifth location, and pivotally connected to the additional first coupler member at a sixth location, and wherein the first, second, and third locations are spaced apart from each other, and the fourth, fifth, and sixth locations are spaced apart from each other; a lumbar support linkage extending laterally behind the impact body and pivotally connected to the linkage assembly at a seventh location and pivotally connected to the additional linkage assembly at an eighth location, wherein the seventh location is spaced apart from the first, second, and third locations, and the eighth location is spaced apart from the fourth, fifth, and sixth locations; and at least one biasing member operatively connected to the seatback frame and at least one of the linkage assembly and the additional linkage assembly to bias the head restraint to an upright position.