A seat of a vehicle is designed for safety to reduce risk of injury to an occupant of the seat in the event of an abrupt movement or a collision involving the vehicle from the rear. The seat may have seatback geometry designed to promote coupling an occupant to the seat, thereby minimizing a gap between an occupant and the seatback and, therefore, the impact forces to the occupant in a rear-facing collision by reducing a relative velocity between the occupant and the seat, as well as absorbing energy of the occupant over a longer distance. The seat may include one or more materials that plastically deform under a force imparted on the seat by the occupant accelerating relative to and toward the seat during a vehicle collision. Cavities in the seat can be used, in some examples, to create a particular compressibility for optimizing impact.

An energy absorbing device includes a first connector and a second connector. The first connector is for connection to the base of a seat back of an aircraft seat and the second connector is for connection to the frame of an aircraft seat. The first connector is moveable relative to the second connector. The energy absorbing device further includes one or more resiliently deformable members which are compressed when the first connector is moved away from the second connector. Also described is a seat comprising the energy absorbing device and a row of seats.

A seat back (20) includes an upper thoracic support section (20a) for supporting at least a portion corresponding to a lower part of the upper thoracic spine of a seated occupant, and a lower thoracic support section (20b) disposed on a front side with respect to the upper thoracic support section (20a) and configured to support a portion corresponding to the lower thoracic spine of the seated occupant. The lower thoracic support section (20b) is configured to displace backward greatly, as compared with the upper thoracic support section (20a) in such, a way that the upper thoracic spine of the seated occupant is inclined forward, when backward inertia force acts on the seated occupant.

The object of the invention is to provide a vehicle seat which can improve degree of freedom in the design of the vehicle seat. A vehicle seat with a seat cushion and a seat back includes: right and left side frames 20 constituting right and left frames of the seat back; a pressure-receiving member 40 disposed between the right and left side frames 20 and configured to receive a load from an occupant; and a driving mechanism 50 disposed at each of right and left sides of the pressure-receiving member 40 and configured to cause a right end portion or a left end portion of the pressure-receiving member 40 to move from an initial position to an advanced position that is located frontward of the initial position or to move from the advanced position to the initial position, wherein the driving mechanism 50 includes a linkage (drive link member 100 and contact link member 200) configured to be connected to the pressure-receiving member 40 and a driving source 52 configured to actuate the linkage, and wherein the linkage is configured to operate when a load equal to or greater than a predetermined amount is input from the occupant to the pressure-receiving member 40 to cause the pressure-receiving member 40 to move to a backward position that is located rearward of the initial position.

A seat system for a motor vehicle has at least one vehicle seat, which can be adjusted between a first position in the forward direction of travel of the motor vehicle, and a second position counter to the forward direction of travel of the motor vehicle. A safety belt device is provided to secure an occupant seated in the vehicle seat in the first and second position. An optimized system in terms of weight, complexity and manufacturing costs, has the safety belt device include a respective belt system, held on corresponding holding points on the motor vehicle body-in-white side, for the first and for the second position of the vehicle seat.

A seating assembly includes a seatback. The seatback includes a frame extending about a periphery of the seatback. The seatback defines a thoracic region and a lumbar region. First and second supports extend from a top portion of the frame to a lower portion of the frame. A first flexible mat and a second flexible mat are operably coupled with the first and second supports. The first flexible mat is disposed proximate the thoracic region. The second flexible mat is disposed proximate the lumbar region.

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 head-pan diaphragm structure attachable to or an integral part of a seat back structure, the head-pan diaphragm structure including high-performance fibers and the head-pan diaphragm structure positionable in a head strike target area of the seat back structure. A seat back assembly including a seat back frame member including spaced portions, a torsion bar attached between the spaced portions, a head-pan diaphragm structure positioned in a framed opening formed by the torsion bar and a portion of the seat back frame member, the head-pan diaphragm structure positioned in a head strike target area, and the head-pan diaphragm member including integrated high-performance fibers.

A seat device includes a seatback frame attached to a seat cushion frame via a seatback attachment member. The seatback attachment member includes a first attachment point to which the seat cushion frame extending forward is attached, a second attachment point to which the rear portion of the seat cushion frame is attached, and a third attachment point to which the lower portion of the seatback frame is rotatably attached. The second attachment point has a floating structure.

There is provided a vehicle seat including: a seat back frame standing from a seat rear end side of a seat cushion, a left and right pair of cushion frames, the seat back frame being supported to be tiltable in a seat front-and-rear direction, and the seat back frame structuring a framework of a seat back; and a seat back panel that is provided at the seat rear side of the seat back frame, an upper frame structuring an upper end portion at the seat rear side of the seat back frame, an upper end portion of the seat back panel being disposed at the seat upper side relative to the upper frame, and the seat back panel displacing toward the seat lower side when an impact load is applied from the upper side of the seat back.