Abstract: A functional apparatus for a vehicle seat having at least one expansion member having at least one cavity, the volume of which can be changed, at least in part, by a fluid which can flow into and out of said cavity, a fluid reservoir comprising at least one cavity being provided, which cavity is connected in a fluid-conducting manner to the cavity of the expansion member. The fluid reservoir cooperates with an actuator assembly by means of which the cavity of the fluid reservoir can be actively compressed, with at least partial displacement of the fluid contained therein into the cavity of the expansion member.

Abstract: A vehicle seat having a backrest and a seat part, as well as at least one sidewall arranged on the backrest or on the seat part, the sidewall having two support portions that are coupled together, by a coupling means, and are movable relative to one another, between which support portions at least one hollow body that can be filled with fluid is arranged, the relative position of the two support portions with respect to one another, and thus the outside contour of the sidewall, being variable by filling or emptying the at least one hollow body. The coupling means is designed such that, upon filling or emptying of the at least one hollow body, the two support portions are variable relative to one another, both in translation and in their angular position.

Abstract: A neck support module for a headrest device of a vehicle seat comprises a frame and at least one inflatable pouch fixed to the frame.

Abstract: A functional apparatus for a vehicle seat having at least one expansion member having at least one cavity, the volume of which can be changed, at least in part, by a fluid which can flow into and out of said cavity, a fluid reservoir comprising at least one cavity being provided, which cavity is connected in a fluid-conducting manner to the cavity of the expansion member. The fluid reservoir cooperates with an actuator assembly by means of which the cavity of the fluid reservoir can be actively compressed, with at least partial displacement of the fluid contained therein into the cavity of the expansion member.

Abstract: A vehicle seat having a backrest and a seat part, as well as at least one sidewall arranged on the backrest or on the seat part, the sidewall having two support portions that are coupled together, by a coupling means, and are movable relative to one another, between which support portions at least one hollow body that can be filled with fluid is arranged, the relative position of the two support portions with respect to one another, and thus the outside contour of the sidewall, being variable by filling or emptying the at least one hollow body. The coupling means is designed such that, upon filling or emptying of the at least one hollow body, the two support portions are variable relative to one another, both in translation and in their angular position.

Abstract: 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.

Abstract: A neck support module for a headrest device of a vehicle seat comprises a frame and at least one inflatable pouch fixed to the frame.

Abstract: 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.