An occupant support includes a seat bottom and a seat back. The seat bottom is coupled to a floor of a vehicle. The seat back is coupled to the seat bottom to move relative to the seat bottom. The seat back includes a back rest and a headrest coupled to the backrest.

The invention relates to a vehicle seat having a seat part and a backrest part, which comprises a lower backrest part and an upper backrest part arranged adjacent thereto in the vertical direction of the vehicle seat, a displacement device being arranged with a first section, which is fixedly connected to the lower backrest part, and with a second section, which is fixedly connected to the upper backrest part, the second section being completely displaceable together with the upper backrest part relative to the lower backrest part by means of a displacement movement directed at least in part in the width direction of the vehicle seat, the first section being arranged completely below the upper backrest part in the vertical direction and forming a guideway for the displacement movement of the second section.

A vehicle seat includes a seatback. The seatback includes a main frame and a sub-frame suspended from the main frame. The sub-frame is configured to swivel with respect to the main frame. The sub-frame includes a first lateral member, a second lateral member separated from the first lateral member by a distance, and a reinforcement member coupling the first lateral member with the second lateral member.

The present disclosure provides a multi-joint seat back for a vehicle, which may include a plurality of partitioned seat back components provided to have a structure in which a seat pad is inserted into a front portion of a skeletal frame and configured to be hinged to one another in a manner of rotating angularly in a forward or backward direction; elastic wires, each of which is connected between two partitioned seat back components selected from the plurality of partitioned seat back components; pulling wires bound to predetermined positions of the elastic wires respectively; and a drive unit connected to the pulling wires such that it winds the pulling wires to pull the elastic wires or otherwise releases the pulling wires to restore the elastic wires.

In one embodiment, a vehicle seat includes a seating portion and a seat back extending from the seating portion. The seat back defines a rear facing surface and a recessed area formed in the rear facing surface. The recessed area extends from an upper surface of the seat back toward a central portion of the seat back. The recessed area defines a void between the vehicle seat and a child seat positioned proximate to the seat back.

The present disclosure describes a seat frame including a waist portion supporting member having a smaller size while stably supporting a waist portion of an occupant. A vehicle seat frame serving as a frame for a vehicle seat includes a seat cushion frame forming a frame of a sitting part of the vehicle seat, a seatback frame forming a frame of a backrest part of the vehicle seat, and a waist portion supporting member coupled to a lower frame which is included in the seatback frame. The waist portion supporting member has a coupling region extending in the seat width direction, the coupling region being coupled to the lower frame, and a waist portion supporting region extending from the coupling region toward the seat cushion frame and supporting a waist portion of an occupant. The waist portion supporting region is longer in the seat width direction than the coupling region.

A vehicle seat for supporting an occupant in a vehicle. The vehicle seat includes a backrest and a headrest.

A vehicle seat is provided which includes a protruding corner formed by joining a first surface and a second surface. The protruding corner includes a pad, a surface cover covering a surface of the pad, and a contour defining plate that is provided on a back side of the surface cover at a position corresponding to the second surface of the protruding corner, the contour defining plate defining the contour of the protruding corner. The contour defining plate has a first edge arranged along a top portion of the protruding corner and a second edge different from the first edge, the contour defining plate not being fixed to the surface cover at the first edge, but fixed to the surface cover at the second edge.

Provided is a support device including a flexible air-tight membrane, defining an internal volume and including a connection valve configured to allow introduction or extraction of air into/from the internal volume, and a compressible solid body housed in the internal volume and made of a material which, when said membrane is placed under vacuum, has a volume that decreases by at least 5%.

An airbag system includes a main airbag device that is provided in front of an occupant and that includes a first bag body, a seat airbag device that is provided in the vehicle seat and that includes a second bag body which is configured to be deployed by being inflated toward at least sides and a front of a torso of the occupant at behind the first bag body and which is configured to restrict the occupant to the vehicle seat, and a seat displacement mechanism that is configured to release restriction by a lock section that restricts movement of the vehicle seat and that is configured to displace the occupant toward the first bag body in front in a case an input impact is equal to or larger than a predetermined strength.