The disclosure generally relates to an adjustable bed apparatus, in particular an adjustable bed foundation. The adjustable foundation includes independently adjustable lumbar and/or neck support structures on an adjustable back/head section of the adjustable bed foundation. In some embodiments, the lumbar and neck support structures include inflatable air bladder structures. In other embodiments, the lumbar and neck support structures include mechanically actuatable subsections of the adjustable back/head section of the adjustable bed foundation.

An adjustable back support assembly coupled to the back of a chair in which a user sits with his back spaced from the chair back. The adjustable back support assembly includes a back support that is pivotally connected to the back of the chair by a hinge. The back support is rotatable at the hinge away from the chair back and towards the back of the user to provide support thereto. The back support assembly also includes a gas cylinder having a retractable piston. The gas cylinder is connected between the back support of the adjustable back support assembly and an upstanding rigid chair backing within the back of the chair. When the retractable piston is forced outwardly from the gas cylinder, a linear pushing force is correspondingly generated by the piston to cause the back support to rotate away from the chair back and towards the back of the user.

A pillow that is portable and inflatable and is intended to be used when traveling is described. The pillow has three sections. A top section has an indentation for resting a user's head and neck. It has a dedicated air value which can be used to inflate it. A middle section is used for supporting a user's back. It does not have a dedicated air valve. It is sealed from the top section. No air flows between it and the top section. A bottom section has an articulated portion that protrudes out to provide support for a user's lumbar section of the back. It is connected to the middle section and has one or more passage ways for air to flow between the two sections. The bottom section has an air valve that allows a user to inflate it and in doing so also inflate the middle section.

A pillow that is portable and inflatable and is intended to be used when traveling is described. The pillow has three sections. A top section has an indentation for resting a user's head and neck. It has a dedicated air value which can be used to inflate it. A middle section is used for supporting a user's back. It does not have a dedicated air valve. It is sealed from the top section. No air flows between it and the top section. A bottom section has an articulated portion that protrudes out to provide support for a user's lumbar section of the back. It is connected to the middle section and has one or more passage ways for air to flow between the two sections. The bottom section has an air valve that allows a user to inflate it and in doing so also inflate the middle section.

Office, work and leisure chair and retrofit kit for causing subliminal movements of the person sitting thereon. The chair has a cruciform base (1), freely articulated rollers (4), a gas-spring support (2) and an interface panel (5) resting thereon as a support panel. Mounted on the support panel is a base panel (28) bearing a seat cover (19) with a seat surface and back rest (22). The seat cover is provided and allowed to wobble, resting via a cover panel (27) on a plurality of spring elements (7), which are displaceable radially, or obliquely in relation to the radial direction, or helically from the centre of the base panel to the periphery of the base panel. The spring elements are mechanically, hydraulically, pneumatically or electrically displaceable, so that the wobble distance of the seat cover and the attenuation of the wobble movement are variable.

An ergonomically improved chair in which the user's thoracic region is supported by a narrow and generally flat or moderately convex thoracic cushion in the midrest region of the chairback. The design omits or greatly minimizes support for the user's scapulae and other areas of the back outside the thoracic region, excepting lumbar and cervical support features in some embodiments. The design differs from the prior art at least in that the thoracic cushion is narrow and configured not to complement that user's spinal curvature. By appropriate selection and design, a chair incorporating the invention may comprise a fabric covering portions of the chairback without significantly affecting functionality. Other embodiments include a chairback comprising regions having differing levels of firmness and/or differing cushion height at appropriate regions to promote concentrated support of the user's thoracic region.

The disclosure relates to a lumbar support assembly, wherein the inclination of a mat is controlled by upward and downward movement of a single nut, thereby making it possible to reducing weight and manufacturing cost of the assembly. According to one embodiment of disclosed herein, a lumbar support assembly includes: a mat having opposite sides that are rotatably connected to opposite sides of a seat frame, respectively; a driving unit coupled to the mat, and including a nut that is configured to be moved upward and downward; and a tension unit having first and second sides that are respectively coupled to the first and second sides of the seat frame, and coupled to the nut while surrounding a rear portion of the mat, wherein the nut allows the mat to be moved frontward or rearward by pulling or loosening the tension unit according to direction of movement.

A body support bridge comprising a four panel hinged device with top plate capable of adjustable flexed mounting into a generally arched shape from a folded flat configuration. A top plate and front plate are covered with foam. A hinged adjustment plate engaged against adjustment tabs lifts and flexes the top plate into at least four different height levels for multiple functions, including lumbar support positioned between a user's back and the seat, thigh support positioned on a seat behind a user's knee, a foot rest with the device placed on the floor, and a head rest positioned with the front plate placed on a tray table.

A body support bridge comprising a four panel hinged device with top plate capable of adjustable flexed mounting into a generally arched shape from a folded flat configuration. A top plate and front plate are covered with foam. A hinged adjustment plate engaged against adjustment tabs lifts and flexes the top plate into at least four different height levels for multiple functions, including lumbar support positioned between a user's back and the seat, thigh support positioned on a seat behind a user's knee, a foot rest with the device placed on the floor, and a head rest positioned with the front plate placed on a tray table.

The disclosure herein relates to lumbar support adjustment for a chair. More specifically, the disclosure related to a lumbar support adjustment mechanism that moves forward and aft relative to the user.