Vehicle seat assemblies including support structures having at least two supports parts coupled at an articulating joint and a pneumatic actuator system including at least one pneumatic chamber inflated and deflated to articulate the articulating joint to move one support part relative to the other or to synchronize movement of two support parts. Support structures can include a backrest coupled to a seat bottom or leg rest coupled to a seat bottom, wherein articulation of the joint causes movement of the backrest or leg rest along a non-hinged trajectory to change a sitting position of the support structure, change seat orientation, and generally improve seat comfort.

A seat of a vehicle seating assembly includes a seat carrier, a thigh tilt housing, a thigh extension housing, and an inflatable member. The thigh tilt housing is coupled to a forward region of the seat carrier. A recess is defined by the thigh tilt housing, with the recess being positioned in an upper surface of the thigh tilt housing. A motor is received within the recess. The thigh extension housing is coupled to the motor, with the thigh extension housing being movable in a fore-aft direction relative to the thigh tilt housing. A fastener couples the thigh tilt housing to the seat carrier in a manner that permits pivotable motion of the thigh tilt housing along a vertical plane. The inflatable member is positioned between the seat carrier and the thigh tilt housing.

A seat of a vehicle seating assembly includes a seat carrier, a thigh tilt housing, a thigh extension housing, and an inflatable member. The thigh tilt housing is coupled to a forward region of the seat carrier. A recess is defined by the thigh tilt housing, with the recess being positioned in an upper surface of the thigh tilt housing. A motor is received within the recess. The thigh extension housing is coupled to the motor, with the thigh extension housing being movable in a fore-aft direction relative to the thigh tilt housing. A fastener couples the thigh tilt housing to the seat carrier in a manner that permits pivotable motion of the thigh tilt housing along a vertical plane. The inflatable member is positioned between the seat carrier and the thigh tilt housing.

A vehicle seat includes a seat cushion and a seat back. The seat cushion includes a storage member configured to store fine particles, shaped into a bag, and made of a flexible and gas-impermeable material, and a gas supply/suction member. The gas supply/suction member fluidizes the fine particles stored in the storage member by supplying the gas to the storage member to make it easy to change a shape of the storage member. The gas supply/suction member solidifies the fine particles stored in the storage member by sucking the gas from the storage member to make it hard to change the shape of the storage member. The storage member includes a rigid inclined member disposed on at least one end of a periphery of the storage member and configured to be inclined downward from an outer periphery of the seat cushion toward a center of the seat cushion.

A cushion support for an at least partially resilient shaped part of a vehicle seat, in particular a back cushion support, having a support means designed for holding up and/or supporting the shaped part at least in regions and at least one expansion body designed for reversibly displacing at least a region of the shaped part, the cross section of which body can be changed by introducing and discharging a fluid. The support means is a mat arrangement which can be mounted in a frame of the vehicle seat and has two superimposed flexible mat layers, in particular formed by a textile, at least in regions, the expansion body being arranged between the mat layers.

A vehicle seating assembly having a seat including a support frame. A seatback is pivotally coupled with the seat and is adjustable between a passenger support position configured to support the weight of a passenger and a cargo position. The seatback is folded forward to a substantially horizontal position. A seat cushion includes a dynamic forward portion and a generally static rearward portion. An articulation feature is disposed below the forward portion of the seat cushion. The articulation feature is operable between a deployed and a non-deployed position. Movement to the deployed position results in the dynamic forward portion of the seat cushion being adjusted to a raised position. Movement to the non-deployed position results in the dynamic forward portion of the seat cushion being adjusted to a lowered position that allows the seatback to fold forward to the cargo position.

A vehicle seat includes a seat cushion and a seat back. The seat cushion includes a storage member configured to store fine particles, shaped into a bag, and made of a flexible and gas-impermeable material, and a gas supply/suction member. The gas supply/suction member fluidizes the fine particles stored in the storage member by supplying the gas to the storage member to make it easy to change a shape of the storage member. The gas supply/suction member solidifies the fine particles stored in the storage member by sucking the gas from the storage member to make it hard to change the shape of the storage member. The storage member includes a rigid inclined member disposed on at least one end of a periphery of the storage member and configured to be inclined downward from an outer periphery of the seat cushion toward a center of the seat cushion.

A seat device includes a seat cushion where a sitting person is seated, and a seatback configured to support the upper body of the sitting person. The seatback includes a seatback frame, a seatback pad placed on a front face of the seatback frame, and a seatback cover covering a surface of the seatback pad. A plurality of stretch airbags is provided in a part of the seatback at a position corresponding to the lumbar part of the sitting person, and the stretch airbags are configured to inflate and press a surface of the seatback to a direction approaching the sitting person. The stretch airbags are placed to overlap each other in a thickness direction of the seatback such that the seatback pad is sandwiched between the stretch airbags.

A cushion support for an at least partially resilient shaped part of a vehicle seat, in particular a back cushion support, having a support means designed for holding up and/or supporting the shaped part at least in regions and at least one expansion body designed for reversibly displacing at least a region of the shaped part, the cross section of which body can be changed by introducing and discharging a fluid. The support means is a mat arrangement which can be mounted in a frame of the vehicle seat and has two superimposed flexible mat layers, in particular formed by a textile, at least in regions, the expansion body being arranged between the mat layers.

A seat frame comprising a seat support member for supporting a seat, in particular a pneumatic tube or cushion, and a clamp member. The seat support member is adjustably mounted on the clamp member, and the seat frame is mountable via the clamp member on a seat frame support of a device on which at least one person can be seated.