Vehicle seat having a pitching spring unit, a vehicle seat upper part and a vehicle seat lower part of the vehicle seat being connected such that they can be moved relative to one another by means of a scissor frame arrangement, comprising a first scissor arm and a second scissor arm which cross in a first region as viewed in a vehicle seat width direction, the pitching spring unit comprising a spring element carrier and a spring element, the spring element being connected on one side to the vehicle seat upper part, the vehicle seat lower part or the scissor arms and on the other side to the spring element carrier which is connected to the first scissor arm such that it can be rotated about a second rotational axis and to the second scissor arm such that it can be rotated about a third rotational axis.

In the vehicle seat, rear suspension members are provided at two positions spaced away from each other in a lateral direction on an edge of a seat cushion near a seatback, and support the seat cushion while the seat cushion is suspended from a seat cushion support frame so that the seat cushion is movable in the lateral direction. A front suspension member is provided at one position or two positions spaced away from each other in the lateral direction on ahead of the rear suspension members, and supports the seat cushion while the seat cushion is suspended from the seat cushion support frame so that the seat cushion is movable in the lateral direction.

A vehicle seat back may include an integrated suspension structure including a suspension wire and suspension mounting guides coupled to both sides of the suspension wire; and a seat back pad foamed for integrating with the integrated suspension structure in a state in which the integrated suspension structure is inserted into a mold for seat back pad formation.

A vehicle seat back may include an integrated suspension structure including a suspension wire and suspension mounting guides coupled to both sides of the suspension wire; and a seat back pad foamed for integrating with the integrated suspension structure in a state in which the integrated suspension structure is inserted into a mold for seat back pad formation.

A vehicle seat includes a first seat component such as a seat pan or seat frame, and a second seat component such as a seat back. The first seat component is rotatably coupled to the second seat component by a rotatable coupling, and a laterally oriented vibration isolator is positioned between the first seat component and the second seat component at the rotatable coupling. Transmission of vibration from the first seat component to the second seat component through the rotatable coupling is suppressed by the vibration isolator. In some cases, the vibration isolator is a quazi-zero-stiffness (QZS) isolator.

An armrest serves as an elbow rest of a seat device in a case where the armrest is tilted forward and serves as a backrest of the seat device in a case where the armrest is raised rearward. The armrest includes an armrest pad configured to elastically support a load applied to a backrest surface forming a part of a front surface of the seat device in a case where the armrest serves as the backrest, an armrest cover configured to cover the armrest pad, a protrusion that protrudes from the backrest surface of the armrest cover and abuts against an upper surface of a seat cushion of the seat device in a case where the armrest is tilted forward, and a cutout portion formed in a region that overlaps the protrusion of the armrest cover in a thickness direction of the armrest.

A cushion suspension for a vehicle seat may have a support structure with a substantially tub-shaped profile and at least two lateral portions. Each of the lateral portions may have a flexible suspension portion. A seating surface assembly for a vehicle seat is also disclosed.

An apparatus includes at least two disk spring washers, at least one ring-shaped outer spacer coupled to the outer edges of one or two of the disk spring washers, and at least one ring-shaped inner spacer coupled to the inner edges of one or two of the disk spring washers. The apparatus also includes a central shaft concentric with the disk spring washers, the outer spacers, and the inner spacers. The apparatus also includes a bottom attachment portion coupled to the bottom of the central shaft to support the at least two disk spring washers, and a top attachment portion configured to slide vertically along the central shaft. The top attachment portion is configured to, with an application of a downward force, compress the at least two disk spring washers.

An apparatus includes a vibration isolator which incorporates at least two disk spring washers. Each disk spring washer has at least one ring-shaped outer spacer coupled to the outer edges of one or two of the disk spring washers, and at least one ring-shaped inner spacer coupled to the inner edges of one or two of the disk spring washers. A bottom attachment portion supports the disk spring washers, and a top attachment portion, with an application of a downward preload force, compresses the disk spring washers. A compression fixture applies and holds the preload force to the top attachment portion, and a second top attachment portion, with application of an additional downward force, further compresses the at least two disk spring washers.

An armrest serves as an elbow rest of a seat device in a case where the armrest is tilted forward and serves as a backrest of the seat device in a case where the armrest is raised rearward. The armrest includes an armrest pad configured to elastically support a load applied to a backrest surface forming a part of a front surface of the seat device in a case where the armrest serves as the backrest, an armrest cover configured to cover the armrest pad, a protrusion that protrudes from the backrest surface of the armrest cover and abuts against an upper surface of a seat cushion of the seat device in a case where the armrest is tilted forward, and a cutout portion formed in a region that overlaps the protrusion of the armrest cover in a thickness direction of the armrest.