A headrest is supported by an upper lateral member and a lower lateral member of a seat frame. A headrest stay is inserted through each of guide slots, both of which are formed in both the upper lateral member and the lower lateral member, and an extension wire is hooked on a lower end of the headrest stay. In a rear-collision, a seat back is retreated by a force received from a seated passenger, and a tension of the tension wire is accordingly loosened, which causes the headrest to be tilted forward by an urging force of tilt springs.

A seat device, particularly aircraft seat device, includes at least one head-support module, which device has a central cushion unit and at least one lateral cushion unit, wherein the lateral cushion unit is supported movably relative to the central cushion unit.

A head restraint assembly includes a headrest bun including an interior portion and a rear outer surface. A frame member is disposed within the interior portion of the headrest bun. A support block is disposed adjacent to the frame member and includes first and second access slots disposed through a body portion thereof. A bracket includes a body portion operably coupled between the support block and the frame member. The bracket includes first and second fins rearwardly extending from the body portion of the bracket through the first and second access slots of the support block and through the rear outer surface of the headrest bun. The distal ends of the first and second fins are spaced-apart from one another and positioned outside of the interior portion of the headrest bun in assembly, and are configured to contact a glass pane of a vehicle during a deceleration event.

A head restraint assembly includes a headrest bun including an interior portion and a rear outer surface. A frame member is disposed within the interior portion of the headrest bun. A support block is disposed adjacent to the frame member and includes first and second access slots disposed through a body portion thereof. A bracket includes a body portion operably coupled between the support block and the frame member. The bracket includes first and second fins rearwardly extending from the body portion of the bracket through the first and second access slots of the support block and through the rear outer surface of the headrest bun. The distal ends of the first and second fins are spaced-apart from one another and positioned outside of the interior portion of the headrest bun in assembly, and are configured to contact a glass pane of a vehicle during a deceleration event.

A seating assembly for a vehicle comprises: a seatback; an airbag having a stowed position and an inflated position, the airbag being configured to inflate from the stowed position to the inflated position in response to the vehicle impacting an object; a head restraint coupled to the seatback, the head restraint including a forward position, a rearward position, and a locking mechanism preventing the head restraint from moving from the forward position to the rearward position after taking the forward position; and as the airbag inflates from the stowed position to the inflated position, the airbag forces the head restraint from the rearward position to the forward position. As the airbag inflates from the stowed position to the inflated position and forces the head restraint to the forward position, the airbag does not contact the one or more support bars and does not force the seatback to change position

A headrest assembly includes a front surface and a frame member disposed within an interior of the headrest bun. First and second hinge members are coupled to opposite sides of the frame member and first and second side supports are operably coupled to the first and second hinge members, such that the first and second side supports are independently operable between stowed and extended positions relative to the headrest bun. The first and second side supports extended outwardly from the front surface of the headrest bun in the extended position, and the friction hinges are tuned to move the first and second side supports towards the stowed position when the first and second side supports are contacted by a vehicle occupant during a vehicle impact event.

A headrest assembly includes a front surface and a frame member disposed within an interior of the headrest bun. First and second hinge members are coupled to opposite sides of the frame member and first and second side supports are operably coupled to the first and second hinge members, such that the first and second side supports are independently operable between stowed and extended positions relative to the headrest bun. The first and second side supports extended outwardly from the front surface of the headrest bun in the extended position, and the friction hinges are tuned to move the first and second side supports towards the stowed position when the first and second side supports are contacted by a vehicle occupant during a vehicle impact event.

A conveyance seat unit lessens a neck load applied to an occupant based on body shape, sex, or the like of the occupant when a rear load acts on a conveyance. The conveyance seat unit includes: a seat having a support portion that supports the occupant from behind; a state adjustment mechanism configured to adjust a state of a neck load adjustment portion, of the support portion, that affects the neck load applied to the occupant when the rear load acts on the conveyance; and an electronic control unit (ECU) that controls the state adjustment mechanism. The ECU acquires occupant information on the body and the sex of the occupant and controls the state adjustment mechanism according to the acquired occupant information to change the state of the neck load adjustment portion, which has been adjusted by the state adjustment mechanism, according to the content of the occupant information.

A conveyance seat unit lessens a neck load applied to an occupant based on body shape, sex, or the like of the occupant when a rear load acts on a conveyance. The conveyance seat unit includes: a seat having a support portion that supports the occupant from behind; a state adjustment mechanism configured to adjust a state of a neck load adjustment portion, of the support portion, that affects the neck load applied to the occupant when the rear load acts on the conveyance; and an electronic control unit (ECU) that controls the state adjustment mechanism. The ECU acquires occupant information on the body and the sex of the occupant and controls the state adjustment mechanism according to the acquired occupant information to change the state of the neck load adjustment portion, which has been adjusted by the state adjustment mechanism, according to the content of the occupant information.

An energy absorbing headrest for a vehicle includes a base member, a frame pivotally mounted to the base member, and a biasing member mounted between the base member and the frame. The biasing member provides a biasing force to the frame. A release mechanism is mounted to the base member and retains the frame against the biasing force. The release mechanism selectively releases the frame upon receipt of a release signal.