Provided is to stabilize a fixed state of each bag body provided at a vehicle seat and configured to expand to push a corresponding one of the shoulders of a seated passenger. Of a seat back provided at the vehicle seat, each shoulder support configured to support a corresponding one of the shoulders of the seated passenger includes an air cell configured to expand by injection of air. The air cell includes protrusions extending in a predetermined direction and provided at respective end portions of the air bag in the extending direction thereof. The air cell is attached to the inside of the seat back in such a manner that each of the protrusions provided at respective end portions in the extending direction is fixed to a corresponding one of fixing positions separated from each other in the width direction of the vehicle seat.

A conveyance seat capable of suppressing wrinkles or saggings from occurring on a surface of a seat main body is provided. A conveyance seat S includes a seat back and a movable body which is attached inside the seat back, is disposed at an outer position in relation to a center portion of the seat back, and is operated so that a side portion of the seat back protrudes toward a seated occupant side (seat front side). The movable body is disposed on a back surface of a cushion material in the side portion. An end portion (rear end portion) on the side opposite to the seated occupant side of the movable body is disposed on the seated occupant side (seat front side) in relation to a seating surface of the center portion of the seat back.

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 mounting structure for at least one seat in a vehicle having a vehicle structure is provided. The seat mounting structure may have a seat rib cage configured as a universal solitary mounting bracket to which at least one seat can be affixed. The seat rib cage may have a plurality of rib cage elements connected with each other to form the seat rib cage. The seat rib cage may also have a plurality of seat mounting points for mounting the at least one seat to the seat rib cage. The seat rib cage may also have a plurality of vehicle structure mounting points for mounting the seat rib cage to the vehicle structure.

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 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.

The invention relates to an operating device for adjusting seat parameters of a seat, in particular of a vehicle seat, wherein the operating device comprises at least one multifunction operating element having at least one selection element, by means of which at least two operating levels are selectable, wherein the multifunction operating element is movable in at least five switching directions, wherein each switching direction can be assigned to a specific function, which belongs to the selected operating level and changes a seat parameter.

The present disclosure relates to an occupant support element that may have at least one structural support element. Further, the present disclosure relates to a vehicle seat that may have such an occupant support element.

Vehicle seat comprising a backrest, a seat part and a seat part upper portion connected to the seat part and displaceable relative to the seat part, the backrest being connected to the seat part in such a manner as to be rotatable about a first axis of rotation, characterised in that the backrest and the seat part upper portion are connected to one another in such a way that, when the backrest is rotated about the first axis of rotation, the seat part upper portion is displaced relative to the seat part.

A seat comprises a backrest, a seat support coupled to the backrest; and a thigh support coupled to the seat support. The thigh support includes a thigh support structure having a thigh extension, wherein the thigh extension is movably adjustable between a retracted position and a fully extended position. The thigh extension may include at least one elastically deformable element.