A foldable plastic-steel chair comprises a seat board assembly, a backrest, and a metal supporting frame. The seat board assembly and the backrest are connected to the metal supporting frame, and the seat board assembly comprises a seat board. The seat board comprises a surface plate and a surrounding edge connected to a periphery of the surface plate and extending downward, and the seat board is a vacuum-formed plastic board. The seat board assembly further comprises a metal frame abutting a periphery of seat board, and a bottom end of the metal frame is bent outward to form a hook. A lower end portion of the surrounding edge of the seat board is disposed in the hook, and a portion of the metal frame abuts an inner side of the surrounding edge. The hook is fixedly clamped to a lower edge of the surrounding edge.

A seating structure includes a body support member having laterally spaced opposite sides and longitudinally spaced ends. The body support member has a curvature in least one of the lateral and longitudinal directions, wherein the curvature is changeable between at least first and second configurations. The body support member includes a shape memory material extending in at least one of the lateral and longitudinal directions, wherein the shape memory material is attached to the body support member at two spaced apart locations. The shape memory material is contractible between at least a non-energized state and an energized state in response to an application of energy. The shape memory material biases the flexible body support member between the first and second configurations when the shape memory material is contracted to the energized state. Other office systems incorporating shape memory materials are also provided.

A seating structure includes a body support member having laterally spaced opposite sides and longitudinally spaced ends. The body support member has a curvature in least one of the lateral and longitudinal directions, wherein the curvature is changeable between at least first and second configurations. The body support member includes a shape memory material extending in at least one of the lateral and longitudinal directions, wherein the shape memory material is attached to the body support member at two spaced apart locations. The shape memory material is contractible between at least a non-energized state and an energized state in response to an application of energy. The shape memory material biases the flexible body support member between the first and second configurations when the shape memory material is contracted to the energized state. Other office systems incorporating shape memory materials are also provided.

Disclosed are seating made from pressure vessels, such as cylindrical propane tanks with hemispherical ends, as well as methods for making this kind of seating. The methods involve cutting sections of the reclaimed tanks and placing those sections on a jig that establishes defined, ergonomic positions for seat and back portions of the furniture, and welding appropriate ends or supports to the sections to form the piece of furniture. The pieces of furniture are made without bending, rolling, or otherwise changing the shape of the cut sections from the pressure vessel.

A seat, particularly for playing video games, includes a tubular frame, a seat surface and a backrest. The seat surface and the backrest are formed by a piece of cloth tensioned in the frame, and the frame includes two lower frame parts extending forward from the backrest and each having a curved progression which is convex in downward direction. Each lower frame part can have a front outer end and a rear outer end, and the two lower frame parts can be connected to each other close to their front outer ends and close to their rear outer ends by front and rear transverse frame parts, which can each have a curved progression which is convex in upward direction. A tubular frame and a cloth are configured for application in such a seat.

A chair comprises: two side frames, each of the two side frames comprising a front supporting leg and a rear supporting leg; a seat portion fixed between the two side frames; and a backrest portion connected to the rear supporting legs of the two side frames via a plug structure.

A chair comprises: two side frames, each of the two side frames comprising a front supporting leg and a rear supporting leg; a seat portion fixed between the two side frames; and a backrest portion connected to the rear supporting legs of the two side frames via a plug structure.

A chair comprising: a support structure, a seat fixed to the support structure, and a backrest connected to the seat by means of at least one upright of plastic material, wherein said at least one upright is elastically deformable to allow a movement of the backrest between a rest position and a tilted position, wherein said at least one upright is provided with at least one vertical rib having at least one localized bending zone wherein at least one through-cut is formed, which allows bending of the vertical rib, and wherein said at least one through-cut has a first and a second stop surface that come into mutual contact in the backwards inclined position of the backrest to stop the backward bending of the upright, wherein said at least one through-cut has the shape of a closed arched slot, which extends generally along a vertical axis of said upright.

A chair comprising: a support structure, a seat fixed to the support structure, and a backrest connected to the seat by means of at least one upright of plastic material, wherein said at least one upright is elastically deformable to allow a movement of the backrest between a rest position and a tilted position, wherein said at least one upright is provided with at least one vertical rib having at least one localized bending zone wherein at least one through-cut is formed, which allows bending of the vertical rib, and wherein said at least one through-cut has a first and a second stop surface that come into mutual contact in the backwards inclined position of the backrest to stop the backward bending of the upright, wherein said at least one through-cut has the shape of a closed arched slot, which extends generally along a vertical axis of said upright.

A movable antiballistic bench, the bench comprising: a base, the base comprising a bullet resistant material; a plurality of support legs extending away from a first surface of the base, the support legs comprising a bullet resistant material and having distal ends which are adapted to contact a support surface; a seatback, the setback attached to the base at an angle other than 90, the seatback comprising a bullet resistant material.