A seat assembly includes a cushioned component having a lattice matrix, wherein the lattice matrix includes a first portion defined by a first pattern of interconnected links which defines a first set of cells, and a second portion defined by a second pattern of interconnected links which defines a second set of cells. The first portion of the lattice matrix includes a density profile that is different than a density profile of the second portion of the lattice matrix. An air bladder is disposed within a core portion of the lattice matrix and includes a non-porous outer casing surrounding an interior cavity. The outer casing of the air bladder and the lattice matrix are integrated components comprised of a common material to define a monolithic structure created using an additive manufacturing process.

A backrest of a vehicle seat comprises a backrest armature, at least one central upholstery module and two side upholstery modules each arranged on a respective side of the central upholstery module. Each of the at least three upholstery modules is fixed to the backrest armature independently of the other two upholstery modules.

A pump-valve integrated machine for a pneumatic lumbar support of an automobile seat includes: an air pump; a pump valve connection base that is provided with a one-way air outlet structure, which is opposite to and in communication with an air outlet hole of the air pump; an electromagnetic air valve lower base that is fixed onto the air pump and is provided with a mounting groove and a ventilation hole are; a normally open electromagnetic air valve that is disposed on the electromagnetic air valve lower base and has an air inlet end corresponds to the ventilation hole; an electromagnetic air valve upper cover that is provided above the normally open electromagnetic air valve and has an air outlet connector corresponds to a valve core of the normally open electromagnetic air valve; and a control circuit board.

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.

Proposed are a seat for a vehicle and a method of controlling the same capable of sensing whether an occupant is snoring and of changing the posture of the occupant so as to induce sound sleep of the occupant. The seat for a vehicle includes a seat cushion, a seatback, a side bolster, a headrest, a sensing device mounted in the headrest to sense whether an occupant is on the seat and whether the occupant is snoring, a posture-changing device mounted in at least one of the seat cushion, the seatback, the side bolster, or the headrest to change the posture of the occupant, and a controller configured to determine whether the occupant is on the seat and whether the occupant is snoring based on a sensing signal output from the sensing device and to operate the posture-changing device.

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%.

Provide are a device for adjusting softness of a vehicle seat, a device for adjusting comfort of a seat, and a vehicle seat. The device for adjusting softness of a vehicle seat has at least one soft inflatable bag that can be integrated in the seat. The soft inflatable bag is connected with at least one air path. The soft inflatable bag is filled with a flexible filler. Gas is charged into or discharged from the soft inflatable bag through the air path to adjust the softness of the surface of the seat. The soft inflatable bag is provided therein with a height limiting structure configured to limit the partial expansion height of the soft inflatable bag when inflated.

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.

An air cushion device for a seat includes at least one first air cushion and a second air cushion, first and second air inlets, first and second air ducts, and a device preventing the second air duct from being pinched off by a fixing wire of a seat cover.

A seat assembly may include a seat having a seat base and a seat back, a temperature control unit disposed at least partially in the seat back, and/or an ECU connected with the temperature control unit. The ECU may be configured to receive an input related to (i) a first state corresponding to symptoms and/or discomfort associated with dysmenorrhea and/or (ii) a second state corresponding to symptoms and/or discomfort associated with sciatica. The ECU may be configured to operate the seat assembly according, at least in part, to the input.