A chair assembly includes a base assembly, a seat assembly having a pair of side edges and a fore-to-aft extending longitudinal centerline, a back assembly movable between upright and reclined positions, and an arm assembly including an arm base extending from a first location between the side edges to a second location laterally outward of one of the side edges, wherein the arm base extends at an acute angle with respect to the longitudinal centerline and at an upward angle from the first location toward the second location, a support assembly supported by and extending upwardly from the arm base, and an armrest supported by the support assembly that is adjustable to support the armrest between a plurality of selected vertical positions, wherein the arm assembly and back assembly move at a different rate from one another as the back assembly is moved between the upright and reclined positions.

The invention relates o a chair having a seat structure formed by a frame member that defines a central opening. A flexible membrane extends across the central opening. A pair of support pads, one disposed on either side of the cross-beam member, is provided and arranged at a level below the central opening of the frame member. The support pads are arranged within the seat structure so as to be rearwardly disposed with respect to the front edge of the frame by a first distance and spaced apart from each other by a second distance, the first and second distances generally corresponding to the positioning of the ischicial tuberosity of a user when the user assumes a seated position engaging the seat structure.

A chair has a seat support, a seat portion, a back portion, and a supporting frame. The supporting frame is formed by a castored base, a height adjustment mechanism, and a main transom. The seat portion is selectively moveable relative to the supporting frame, with the seat portion having a locked configuration and a released configuration. The back portion has a back frame and a compliant cover. The back frame has hood features for receiving a portion of the compliant cover. The back portion is reclinable relative to the supporting frame between an upright position and a reclined position. A recline mechanism has deformable members operatively connecting the seat portion and the supporting frame. A recline resistance mechanism is selectively engageable to resist movement of the back portion toward the reclined position.

The disclosed adjustable backrest provides a plurality of generally horizontal straps arranged from the top to the bottom of the rigid back shell to provide anterior to posterior support and comfort for a patient. Generally speaking, the generally horizontal straps provide variably adjustable tension straps that allow for precise positioning of the patient to reduce or remove pressure points from the patient's thoracic to sacrum region.

A sling chair includes a frame having a base with a forward end and an opposing rearward end. A back rest upstands from the rearward end of the base and has an upper end. A plurality of flexible, spaced apart straps longitudinally extend from the upper end of the back rest to the forward end of the base. The effective length of the straps can be adjusted. A pillow or cushions can be disposed on the plurality of straps.

The seat back portion of a passenger aircraft seat is built of an elastomer mesh type diaphragm without conventional cushions or dress covers, in order to maximize space available to the passenger while reducing costs and weight. The diaphragm is attached and tensioned into a structural frame, which also supports a slide-in rear shroud closeout. The frame is designed to remain exposed, showing a decorative finish.

A body support assembly includes a seat assembly and backrest assembly supported by a tilt control assembly. Methods of using and assembling the body support assembly are provided.

A seating structure includes a shell having a central portion, opposite outer peripheral edges laterally spaced from opposite sides of the central portion, and at least one biasing array disposed between each of the opposite sides of the central portion and a respective outer peripheral edge. Each of the biasing arrays includes a plurality of spaced apart support members and at least one connector connecting adjacent support members within each array. The biasing array may include a plurality of biasing arrays, with at least one connector connecting adjacent biasing arrays. A second shell may be connected to the outer peripheral edges of the first shell, with an open space defined there between. Each of the opposite outer peripheral edges is independently deflectable in response to a load being applied to the second shell.

A seating structure includes a base, a seat supported by the base, and a backrest having a frame and a suspension material supported by the frame. The frame includes an upper end and a lower end opposite the upper end. The seating structure also includes an upper thoracic support assembly supported by the frame adjacent the upper end. The upper thoracic support assembly including a thoracic support pad positioned between the frame and the suspension material. The thoracic support pad configured to engage the suspension material to support an upper thoracic region of a user.

A seat assembly includes a base and a support platform spaced above the base. The support platform includes a pad having a hinge portion defining a flex region, wherein the pad is pivotable about the flex region. A link has a lower portion coupled to the base and an upper portion coupled to the pad, wherein the upper portion is pivotable with the pad about the flex region.