The present invention is a seat pad (10) that includes a main component (1) having a seating surface and side components (2) disposed on both sides of the main component. The main component includes a main first pressure receiving portion (1a) and a main second pressure receiving portion (1b). The main first pressure receiving portion has a higher foam density than the side components disposed on both sides. The main component and each of the side components are a flexible polyurethane foam obtained by foam molding a foaming stock solution containing a polyol, a polyisocyanate, a blowing agent, and a catalyst. The main first pressure receiving portion contains diphenylmethane diisocyanate (MDI). Each of the side components contain tolylene diisocyanate (TDI).

A support pad comprises a first surface layer, a second surface layer and an airbag structure. The first surface layer is disposed on the first surface of the support pad. The second surface layer is disposed on the second surface of the support pad and connected to the first surface layer. An edge of the first surface layer is connected to an edge of the second surface layer to cover the airbag structure. The airbag structure has a plurality of hollowed portions and a first connecting portion of the first surface layer is connected to a second connecting portion of the second surface layer through a space provided by the hollowed portions.

A support pad comprises a first surface layer, a second surface layer and an airbag structure. The first surface layer is disposed on the first surface of the support pad. The second surface layer is disposed on the second surface of the support pad and connected to the first surface layer. An edge of the first surface layer is connected to an edge of the second surface layer to cover the airbag structure. The airbag structure has a plurality of hollowed portions and a first connecting portion of the first surface layer is connected to a second connecting portion of the second surface layer through a space provided by the hollowed portions.

A vehicle seat includes: a cushion pad; a vibration transmission member which has a wire shape and is embedded in the cushion pad; and a vibration device configured to vibrate the vibration transmission member. The vibration transmission member includes: a bent portion; an operation portion provided on one end side with respect to the bent portion and extending in a first direction along a seated person support surface of the cushion pad; and an input portion provided on the other end side with respect to the bent portion and extending in a second direction intersecting the seated person support surface. The vibration device vibrates the input portion in a third direction intersecting the second direction in a plane defined by the first direction and the second direction.

A portable seat cushion for placement on a seat for added comfort and support is provided that includes an elongated rectangular base comprising a front portion, seat portion, and back portion. The base includes a top surface and a bottom surface. The seat cushion also includes a generally wedge-shaped main cushion, and a generally rectangular-shaped back cushion, wherein the main and back cushions engage the base. The seat cushion is moveable between a deployed configuration and a rolled configuration.

A sitting device that encourages the active engagement of the user to remain upright. A seat (14) supported by a central column (12) passes through a pivot joint (16) supported by a base (10). The pivot joint (16) is located substantially at the median of the central column (12) between the seat (14) and the bottom of the base (10). The central column (12) pivots angularly providing the user mobility in his or her hips and lumbar, thoracic, and cervical spine. The central column (12) and seat (14) are brought back to vertical when the sitting device is not in use by means of a counterweight (18) affixed to the bottom of the central column (12). The length of the central column (12) may be adjustable to allow the user to select the desired height of the seat (14). The pivot joint (16) may be a spherical plain bearing, spherical ball bearing, gimbal bearing, spherical thrust bearing, or other device that allows the central column (12) to pivot angularly. The base (10) supporting the pivot joint (16) and central column (12) may contain as few as one leg and as many legs as needed to support the user. The movement of the pivot joint (16) may be inhibited by affixing a collar lock (40). The frictional resistance of the pivot joint (16) may be adjusted with a set screw (50).

A sitting device that encourages the active engagement of the user to remain upright. A seat (14) supported by a central column (12) passes through a pivot joint (16) supported by a base (10). The pivot joint (16) is located substantially at the median of the central column (12) between the seat (14) and the bottom of the base (10). The central column (12) pivots angularly providing the user mobility in his or her hips and lumbar, thoracic, and cervical spine. The central column (12) and seat (14) are brought back to vertical when the sitting device is not in use by means of a counterweight (18) affixed to the bottom of the central column (12). The length of the central column (12) may be adjustable to allow the user to select the desired height of the seat (14). The pivot joint (16) may be a spherical plain bearing, spherical ball bearing, gimbal bearing, spherical thrust bearing, or other device that allows the central column (12) to pivot angularly. The base (10) supporting the pivot joint (16) and central column (12) may contain as few as one leg and as many legs as needed to support the user. The movement of the pivot joint (16) may be inhibited by affixing a collar lock (40). The frictional resistance of the pivot joint (16) may be adjusted with a set screw (50).

A seat cushion is provided. The seat cushion includes a first cushion comprising a top side and a bottom side. The bottom side or the top side includes a contoured area and the contoured area has a convex or a concave shape.

A seat cushion is provided. The seat cushion includes a first cushion comprising a top side and a bottom side. The bottom side or the top side includes a contoured area and the contoured area has a convex or a concave shape.