A seating posture is stabilized for the shoulders of a passenger seated on a vehicle seat. A vehicle seat is provided with a seat back configured to support the seated person from the rear. A shoulder support portion of the seat back configured to support a corresponding one of the shoulders of the seated passenger includes an air cell configured to expand when air is supplied. When the air cell expands, one end portion of the shoulder support portion on the outside in the width direction of the vehicle seat moves more forward than the other end portion of the shoulder support portion on the inside in the width direction.

The present disclosure relates to a vehicle seat that includes a seat cushion which is substantially horizontal with respect to a floor of a vehicle. The vehicle seat further includes a seat back including a proximal end and a distal end separated by a longitudinal length, such that the proximal end is pivotably coupled to the seat back. The vehicle seat also includes a track arranged adjacent to the seat cushion and the track has a longitudinal length. The track includes a proximal end and a distal end, such that the proximal end of the track is attached to a biasing element while the distal end of the track is attached to a portion of the seat back. In a crash event, the seat back is displaceable with respect to the seat cushion along the longitudinal length of the track.

The invention relates to a device for influencing a backward movement of a seat, in particular a backrest part of the seat, with at least one deformation element arranged in a hinged area of the seating part of the seat, the deformation element being configured such that the deformation element can be deformed due to a force acting on the seating part and/or the back part at a predefined torque curve. The invention also relates to a seat, in particular a vehicle seat, comprising a seating part, a backrest part and the type of device.

A seat back pad 70 has a groove 73 for tucking a skin material therein, formed at borders between a central portion 71 and side portions 72. A hole (slot hole 74) is formed in a bottom of the groove 73 along the groove 73. A tuck-in wire 76 for tucking the skin material in includes a plurality of tuck-in portions 76A provided along the groove 73, and a connecting portion (detour portion 76B) detouring around the hole and connecting the tuck-in portions 76A. With this configuration, when an upper body of an occupant P subsides into a seat back S2 in a rear-end collision of a vehicle, the central portion 71, defined by the groove 73 as a border, is easily and sufficiently moved rearward relative to the left and right side portions 72. Furthermore, the tuck-in wire 76 is not exposed through the hole, and thus adhesion between the seat back pad 70 and the tuck-in wire 76 can be improved.

An occupant support includes a seat bottom and a seat back. The seat back is coupled to the seat bottom and includes a headrest and a backrest. The occupant support is configured to support an occupant resting thereon before, during, and after an impact force is applied to the occupant support.

In a structure in which a lower arm is fixed to a vehicle, provided is a vehicle seat that can reduce an impact applied to a recliner. One aspect of the present disclosure is a vehicle seat including a lower arm and a recliner. The lower arm includes an arm body to which the recliner is attached, a first fixing portion to be attached to the vehicle in a lower position, and a second fixing portion attached to the vehicle in a rear position. The arm body includes a first recess arranged between the recliner and the first fixing portion in an up-down direction, the first recess extending from an edge of the arm body, and a second recess arranged between the recliner and the second fixing portion in a front-rear direction, the second recess extending from the edge of the arm body.

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.

The invention relates to a device for influencing a backward movement of a seat, in particular a backrest part of the seat, with at least one deformation element arranged in a hinged area of the seating part of the seat, the deformation element being configured such that the deformation element can be deformed due to a force acting on the seating part and/or the back part at a predefined torque curve. The invention also relates to a seat, in particular a vehicle seat, comprising a seating part, a backrest part and the type of device.

A vehicle seat assembly is provided with a seatback frame adapted to be mounted to a vehicle interior. The seatback frame has a front region facing a forward direction, and a rear region. A first bracket is mounted to the front region of the seatback frame. A second bracket is mounted to the first bracket and the rear region of the seatback frame. At least one head restraint post is mounted to the first bracket or the second bracket and spaced apart from the seatback frame so that upon a rear vehicle impact, the second bracket deforms as the at least one head restraint post is translated toward the seatback frame.

A seat for a vehicle may include a seatback including one or more inflatable bladders that may be configured to deploy in response to a triggering signal indicative of a change of velocity, collision, or predicted collision event. As at least a portion of the back of an occupant of the seat pushes against a front surface of the seatback due to the event, the one or more inflatable bladders compress at least partially the comfortable foam or comfort material in the seatback and expedite engagement of the energy absorbing material.