Patent ID: 7108327

Claim:
A vehicle seat for use in a vehicle, the vehicle seat comprising: a seatback having a frame, the frame including an upper surface having a first aperture and a lower surface having a second aperture, the first and second apertures being coaxially arranged; a head restraint arrangement having a headrest and a support member connected to the headrest, the support member having an exterior surface; a tubular bushing assembly extending through the first and second apertures, the tubular bushing assembly including: a sleeve having an outer surface and a tubular body that defines a cavity, a first sleeve end disposed proximate a cavity opening, a second sleeve end disposed opposite the first sleeve end, a flange disposed proximate the first sleeve end and extending generally perpendicular from the tubular body, a stop portion disposed adjacent to the sleeve, the stop portion being disposed adjacent to the flange and extending from the flange toward the second sleeve end, a spring having a coiled portion disposed in the cavity and a first spring extension disposed near the first sleeve end that extends out of the cavity adjacent to an upper surface of the flange, and an actuator attached to the first spring extension and disposed adjacent to the flange, the actuator being configured to move linearly along the flange between a retracted position and an extended position; wherein the spring exerts a biasing force against the exterior surface of the support member to inhibit movement of the support member relative to the tubular bushing when the actuator is in the retracted position and wherein the biasing force exerted by the spring against the exterior surface is reduced to permit axial movement of the support member relative to the tubular bushing when the actuator is in the extended position.