A chair support shell has an integral back portion, seat portion, and joining portion between the back portion and the seat portion. At least a major portion of the support shell comprises a compliant structure, the compliant structure having a plurality of cells interconnected by a plurality of resilient members. The compliant structure provides compliance in the seat portion, compliance in the back portion, and compliance in the joining portion. The compliant structure enables recline of the back portion relative to the seat portion.

A chair support shell has an integral back portion, seat portion, and joining portion between the back portion and the seat portion. At least a major portion of the support shell comprises a compliant structure, the compliant structure having a plurality of cells interconnected by a plurality of resilient members. The compliant structure provides compliance in the seat portion, compliance in the back portion, and compliance in the joining portion. The compliant structure enables recline of the back portion relative to the seat portion.

A body support structure including a plurality of spaced apart support members defining a first surface and a plurality of spaced apart base portions defining a second surface. A plurality of connectors connects each base portion with the at least the two adjacent support members. In one embodiment, a body support structure includes a first plurality of spaced apart first support members and a second plurality of spaced apart second support members arranged in a checkboard pattern.

A box is made of structural boards having a face plate (2) including a main body portion (2c) that is substantially in one plane and a peripheral portion (2a) surrounding the main body. The boards further include a base plate (3) having integrally formed protrusions. The lower surface of the face plate (2) is attached to and supported on top of the protrusions. A stiffener (4) connects the peripheral portion (2a) of the face plate (2) and the base plate (3) together. At least a part of the stiffener (4) is fixedly connected to the base plate (3), and at least another part of the stiffener (4) is fixedly connected to at least a part of a lower surface of the peripheral portion (2a) of the face plate.

A chair is provided with a seat support frame which may be comprised of at least two tubes spaced apart by a polymer connector. The seat support frame supports a foam cushion and the frame may be embedded in the foam and may include flexible supports across the support frame also embedded in the foam. A rigid panel has a cavity and the rigid panel is arranged adjacent an outer surface of the foam cushion with at least part of the foam cushion positioned within the cavity, wherein the rigid panel is affixed to the support frame and an inner surface of the rigid panel faces the outer surface of the foam cushion.

A seating arrangement includes an upwardly-extending back arrangement movable between upright and reclined positions, and a seat arrangement that includes a first link member extending horizontally and having forward and rearward portions, a second link member spaced from the first link member, a third link member coupled to the first and second link members and substantially flexible along a majority of a length thereof, and a fourth link member operably coupled to the first and second link members, the fourth link member being substantially rigid along a majority of a length thereof, wherein the link members cooperate to form a four-bar linkage assembly, and wherein the seat arrangement moves in a rearward direction as the back arrangement is moved between the upright position and the reclined position.

A seating arrangement includes an upwardly-extending back arrangement movable between upright and reclined positions, and a seat arrangement that includes a first link member extending horizontally and having forward and rearward portions, a second link member spaced from the first link member, a third link member coupled to the first and second link members and substantially flexible along a majority of a length thereof, and a fourth link member operably coupled to the first and second link members, the fourth link member being substantially rigid along a majority of a length thereof, wherein the link members cooperate to form a four-bar linkage assembly, and wherein the seat arrangement moves in a rearward direction as the back arrangement is moved between the upright position and the reclined position.

A seat shell includes a one-piece shaped wooden shell which has a seat part and a backrest part and which in its transition region has a bent portion bent along a bending axis. The shaped wooden shell has a veneer structure including at least nine wood layers glued on top of each other. The wood layers include a top layer at each of the front and rear of the shaped wooden shell, respectively, the top layer made of a wood layer is arranged in the longitudinal direction. The wood layers also include between the top layers a number of middle and outer wood layers arranged in the longitudinal or transverse direction. The shaped wooden shell is upholstered, and has a transversely extending cutout defined by bars at the edge in the transition region and/or the backrest part.

A seat shell includes a one-piece shaped wooden shell which has a seat part and a backrest part and which in its transition region has a bent portion bent along a bending axis. The shaped wooden shell has a veneer structure including at least nine wood layers glued on top of each other. The wood layers include a top layer at each of the front and rear of the shaped wooden shell, respectively, the top layer made of a wood layer is arranged in the longitudinal direction. The wood layers also include between the top layers a number of middle and outer wood layers arranged in the longitudinal or transverse direction. The shaped wooden shell is upholstered, and has a transversely extending cutout defined by bars at the edge in the transition region and/or the backrest part.

A cushion includes a cushion core, adopting blasted sponge, and the cushion core comprising a main bearing area and an auxiliary bearing area; an outer cover layer, wrapping an outer layer of the cushion core, and the outer cover layer adopting a fiber material which is of a reticular structure; and a reinforcing skeleton comprising a plurality of bone bridges, and each bone bridge comprising an arch base and an arch bridge. For each bone bridge, the arch base is located at two side-by-side corners of one side of the cushion core, and is close to one side of the main bearing area; one end of the arch bridge is connected to the arch base, and the other end of the arch bridge extends to a diagonal opposite corner of the other side of the cushion core, and is close to one side of the auxiliary bearing area.