A chair back that includes a back support, an upright frame, and at least one flex wing. The back support is substantially flexible and has a first side portion and a second side portion. The upright frame is substantially rigid and has a first frame side and a second frame side. The flex wing is located between the first frame side and the first side portion, where the flex wing includes a front portion coupled to the first side portion, a back portion coupled to the first frame side, and a web portion interconnecting the front portion and the back portion. The flex wing flexes during engagement by a user.

A chair back that includes a back support, an upright frame, and at least one flex wing. The back support is substantially flexible and has a first side portion and a second side portion. The upright frame is substantially rigid and has a first frame side and a second frame side. The flex wing is located between the first frame side and the first side portion, where the flex wing includes a front portion coupled to the first side portion, a back portion coupled to the first frame side, and a web portion interconnecting the front portion and the back portion. The flex wing flexes during engagement by a user.

The present disclosure provides a memory foam cushion body and a memory foam seat cushion. The memory foam cushion body includes a memory foam main body and supporting silicone. The memory foam main body is provided with an upper surface and a lower surface. The supporting silicone is arranged on the upper surface of the memory foam main body; the supporting silicone is provided with a through hole penetrating through an upper surface and a lower surface of the supporting silicone; and an air layer is formed between the upper surface of the supporting silicone, an inner wall of the through hole, and the upper surface of the memory foam main body.

The present disclosure provides a memory foam cushion body and a memory foam seat cushion. The memory foam cushion body includes a memory foam main body and supporting silicone. The memory foam main body is provided with an upper surface and a lower surface. The supporting silicone is arranged on the upper surface of the memory foam main body; the supporting silicone is provided with a through hole penetrating through an upper surface and a lower surface of the supporting silicone; and an air layer is formed between the upper surface of the supporting silicone, an inner wall of the through hole, and the upper surface of the memory foam main body.

The present disclosure relates to an inflatable structure transformable between a deflated state and an inflated state, the inflatable structure comprising a drop stitch fabric having a first layer and a second layer tethered by drop stitches. At least one layer of the first and second layers comprises a ridge formed by a folded portion of the one layer, secured by a fixation line. The disclosure also relates to a manufacturing method of an inflatable structure in accordance with the foregoing, and an inflatable seat comprising such an inflatable structure.

A shell for a seat, particularly for a simulator, includes a seat surface, a backrest and side parts. The shell includes two or more shell parts connected releasably to each other. The shell parts are connectable to each other along a dividing plane. The dividing plane can run substantially parallel to or enclose a small angle with a plane which connects a front side of the seat surface to an upper side of the backrest, and the shell parts can extend substantially equally far from the dividing plane in a direction transversely thereof. A method for transporting a shell for a seat includes: providing two shell parts which can be connected releasably to each other to form the shell; placing the shell parts in each other; and placing the shell parts which are placed in each other in a packaging.

A shell for a seat, particularly for a simulator, includes a seat surface, a backrest and side parts. The shell includes two or more shell parts connected releasably to each other. The shell parts are connectable to each other along a dividing plane. The dividing plane can run substantially parallel to or enclose a small angle with a plane which connects a front side of the seat surface to an upper side of the backrest, and the shell parts can extend substantially equally far from the dividing plane in a direction transversely thereof. A method for transporting a shell for a seat includes: providing two shell parts which can be connected releasably to each other to form the shell; placing the shell parts in each other; and placing the shell parts which are placed in each other in a packaging.

A body support structure includes a frame and a membrane attached to the frame. The membrane includes elastomeric filaments. The membrane includes different regions with different stiffness. The membrane may form a part of a seat or a backrest.

A body support structure includes a frame and a membrane attached to the frame. The membrane includes elastomeric filaments. The membrane includes different regions with different stiffness. The membrane may form a part of a seat or a backrest.

In one example, a method includes positioning a tool in a mold, forming a parison of melted plastic, closing the mold around the parison and tool such that part of the tool is positioned between a portion of the mold and the parison, creating a blow molded structure by inflating the parison so that the melted plastic comes into contact with an interior portion of the mold and into contact with the tool, and after the mold is closed, operating the tool to form an integral compression molded element within the mold, and a parting line formed by the mold in the blow molded structure forms no part of the integral compression molded element.