A seat assembly includes a frame, a seating base layer, a compression limiter layer, a load distribution layer, and an adjustment module. The seating base layer is arranged on the frame. The compression limiter layer is arranged adjacent to the seating base layer and comprises a wave portion forming a knee support. The load distribution layer is connected to the compression limiter layer. The adjustment module is movable between a rear position and a forward position and is configured to move the wave portion between a retracted position and an extended position. The wave portion has one of more first wave elements formed as springs and one or more second wave elements formed as springs. The first wave elements are offset from the second wave elements in a radial direction.

A seat bottom assembly including a seat bottom frame having a front side and a back side, a seat plate having a front side and a back side, webbing stitches, and tear away stitches. The back side of the seat plate is coupled to the back side of the seat bottom frame. The webbing straps are coupled to and extending between the front side of the seat bottom frame and the front side of the seat plate, and tear away stitches connect two points of the webbing straps along a longitudinal axis so that the webbing straps are partially looped at locations of the respective tear away stitches. The tear away stitches separate and increase a length of the webbing straps in response to experiencing a threshold load in a direction perpendicular to the seat plate.

To improve the seated feeling of an occupant in a seat having partially different hardness, a vehicle seat includes a seat frame, an S spring which is installed on the seat frame and receives a load of an occupant, and a seat back pad which has a plurality of regions respectively formed of different materials and is disposed between a skin material of the seat and the S spring. The S spring is disposed at a position facing a boundary portion which is provided in the seat back pad and is the plurality of regions respectively formed of different materials.

A vehicle seat comprises: a pair of opposed frames disposed opposite to and separately from each other; a pair of connecting frames disposed separately from each other in a perpendicular direction perpendicular to an opposing direction of the pair of opposed frames, the connecting frames being configured to connect the pair of opposed frames; a bridging wire disposed to bridge the pair of connecting frames; a reinforcing wire disposed to cross the bridging wire as viewed from an occupant side; and a plate-shaped plastic member configured to cover the bridging wire and the reinforcing wire at least at their crossover such that the bridging wire and the reinforcing wire are arranged to be spaced apart from and thus kept out of contact with each other, the bridging wire and the reinforcing wire being connected with the plate-shaped plastic member.

A seat backrest includes right and left side frame segments, a pressure receiving member disposed between the side frame segments movably in a front-back direction, and a cushion pad covering the front of the side frame segments and pressure receiving member. The pressure receiving member includes a main body part, and extending parts extending laterally from both sides of the main body part. The cushion pad includes a back receiving part covering the front of the main body part, and bank parts disposed on both sides of the back receiving part, protruding forward from both sides, and covering the front of the extending parts and side frame segments. A recess is formed at an area, facing a corresponding extending part of the extending parts, of a rear surface of each bank part.

A seat assembly includes a frame, a seating base layer, a compression limiter layer, a load distribution layer, and an adjustment module. The seating base layer is arranged on the frame. The compression limiter layer is arranged adjacent to the seating base layer and comprises a wave portion forming a knee support. The load distribution layer is connected to the compression limiter layer. The adjustment module is movable between a rear position and a forward position and is configured to move the wave portion between a retracted position and an extended position. The wave portion has one of more first wave elements formed as springs and one or more second wave elements formed as springs. The first wave elements are offset from the second wave elements in a radial direction.

A vehicle seat includes: a chamber in which at least a seat-front-surface side is covered with a pad and which circulates the air blown from a front surface of a seat through the pad; a fan configured to send air into the chamber; and a support body which supports the chamber so as to be able to sink in an acting direction of a load applied to the surface of the seat. The chamber includes a first region and a second region, and the first region and the second region are configured to allow subduction of the chamber independently of each other.

A seat assembly configured to be employed in vehicle seats such as aircraft passenger seats. The seat assembly includes a seat frame having first and second spaced frame members and first and second spaced transverse beams. A plurality of springs positioned proximate an aft end of the seat frame generally above the second transverse beam span between the first and second frame members. A support member is attached to the plurality of springs and to a seat back attachable to the seat frame. A cushion assembly mounts on the seat frame such that the aft end rests on the plurality of springs while the forward end rests on the front transverse beam. In use, as the aft end of the cushion assembly deflects downward toward the second transverse beam the forward end simultaneously rotates around the first transverse beam.

A seat assembly includes a frame, a seating base layer arranged on the frame and a compression limiter layer arranged on the seating base layer. The compression limiter layer includes a coil portion and a wave portion having a curved profile. The wave portion includes a plurality of wave elements and one or more ribs connected between the wave elements. The seat assembly further includes a load distribution layer connected to the compression limiter layer and an adjustment module movable between a rear position and a forward position. The adjustment module is configured to move the wave portion between a retracted position and an extended position.

A shock mitigation seat 10 includes a plurality of individual shock absorbing members 16 resilient to compression from a shock impact. The shock absorbing members 16 are positioned one adjacent another and such that at a certain stage of compression an individual shock absorbing member 16 resiliently deforms and comes into contact with one or more adjacent individual shock absorbing members 16 which thereby increases resistance to further compression. The seat may be incorporated in a shock mitigation system 50 which has at least one sensor operable to detect a force and to provide a feedback signal indicative of the nature of the force and a memory record the incidence and severity of these forces and provides an indication of cumulative forces absorbed