A backrest of a vehicle seat, comprising a backrest frame, comprising a first lateral flank, a second lateral flank, an upper crossmember, a lower crossmember. The backrest further comprises a seat belt anchoring means support frame, comprising two upper tubes, each extending through a separate through-hole formed in the upper crossmember, so as to extend, at least partially, above the upper crossmember, a lower tube, positioned near the lower crossmember of the backrest frame, and fixed to at least one lateral flank of the backrest frame, at least one connecting tube connecting at least one upper tube to the lower tube.

A vehicle seat includes a seat back frame, an elastic installation supporting member installed in the seat back frame, and an airbag within a seat back, the vehicle seat causing the airbag to inflate and develop within the seat back. An inflator is attached to the seat back frame. The seat back frame has a substantially frame shape along a seat back shape. The airbag is provided in the seat back frame in the substantially frame shape. The inflator is attached to at least one of an upper portion and a lower portion of the seat back frame in the substantially frame shape. An inflation and a development of the airbag in the seat back due to an operation of the inflator allows the airbag to elastically support an upper body of a seated person and to elastically receive an impact force.

A seat assembly for a vehicle includes a seatback having a seat frame. The seat assembly includes a panel having an end slidably supported by the seat frame. The panel is bowable outwardly from the seat frame to a deployed position. The seat assembly includes an actuator supported by the seat frame and connected to the end of the panel.

A vehicle includes a floor. A seat is supported by the floor. The seat includes a seatback. An actuator is fixed relative to the floor. The actuator is spaced from the seat along a vehicle-longitudinal axis. A track is fixed relative to the floor and is disposed between the seat and the actuator. The track is elongated along the vehicle-longitudinal axis. A slider is disposed in the track. The slider is slidable relative to the track by the actuator to a deployed position. A cable includes a first end fixed relative to the seatback and a second end fixed relative to the slider. The cable is under tension when the slider is in the deployed position.

An impact absorbing device for a vehicle seat includes: a first base member; a second base member; and an impact absorbing member. The first base member rotatably supports the second base member. The impact absorbing member includes: a first fixing portion fixed to the first base member; a second fixing portion fixed to the second base member; and a deformable portion. The deformable portion is provided between the first fixing portion and the second fixing portion, and is configured to be bent by the rotation of the second base member. A distance between the first fixing portion and the second fixing portion in an undeformed state of the deformable portion has a value intermediate in a range of variation of the distance that varies depending on the bending of the deformable portion.

A device for preventing a submarine phenomenon in a fold and dive seat for a vehicle includes a seat cushion side frame, a seat back frame fastened to a rear end portion of the seat cushion side frame in a manner that is rotatable backward and forward, a seat cushion main-frame fastened between the seat cushion side frame and the seat back frame in a tiltable manner, and a dive link fastened by a hinge mechanism between a front end portion of the seat cushion main-frame and a front end portion of the seat cushion side frame, in which a stopper link rotatably mounted on the seat cushion side frame is rotated by an inertial force when a head-on collision occurs, and thus holds the dive link in place.

A seat for a vehicle may include a seatback including an intermediate portion including a first portion having a first stiffness and a second portion including a second material different than a first material of the first portion, such that the seatback quickly couples an associated occupant and dissipates as much energy as possible. The intermediate portion may be configured such that as at least a portion of the back of an occupant of the seat pushes against a front surface of the seatback and the seatback is at least partially compressed, a reaction force from the seatback against at least a portion of the back of the occupant increases from a minimal reaction force to a first reaction force corresponding to a first displacement, and thereafter the reaction force decreases to a second reaction force as displacement of the front surface of the seatback further displaces.

A crash-arresting unit for a vehicle seat may have a locking element and an actuating unit. The locking element can be brought into form-fitting engagement with a mating element via the actuating unit. The actuating unit may be an electromechanical actuating unit having a fusible wire, where destruction of the fusible wire frees a movement of the locking element in the direction of the mating element.

Technologies are described for assemblies to recline a seat. The assemblies may comprise a shaft, a threaded end at a first end of the shaft, a Stroke limiter, a seat back mounting, a mounting fastener, an energy absorber, and at least one locknut. A first end of the Stroke limiter may be attached to a second end of the shaft. The seat back mounting may be attached to a second end of the Stroke limiter and the mounting fastener. The energy absorber may be a kinetic energy absorbing element and the shaft may pass through the energy absorber. The locknut may be configured to secure the shaft of the seat recline assembly to the seat frame mounting with the end of the shaft attached to the Stroke limiter on a first side of the seat frame mounting and the energy absorber on a second side of the seat frame mounting.

An occupant protection system for a vehicle may include a seat-back actuator system, including a seat-back actuator configured to move a portion of a seat toward a back of an occupant of the vehicle during a collision in which the occupant is facing opposite a direction of travel of the vehicle. The seat-back actuator system may also include an actuator controller configured to receive a triggering signal indicative of one or more of an actual change in velocity of the vehicle, a predicted change in velocity of the vehicle, a collision, or a predicted collision, and cause the seat-back actuator to move the seat toward the back of the occupant. By moving the seat toward the back of the occupant, a maximum rate of change of velocity of the back of the person may be reduced, reducing the likelihood or severity of injury to the occupant due to the collision.