A chair provided with a plate, to which a seat is freely articulated above, by way of at least one first linkage and a second pair of linkages in the rear and front regions, a backrest being articulated laterally and freely to said seat. The first end of a pair of cams is pivoted to the plate at the rear, and the second end is pivoted to the backrest.

This outdoor structure, which is installed outdoors, such as a bench, a fence, or a wooden path, includes a plurality of metal support posts each including one or more rectangular through holes and arrayed at least in one row in a first direction; and a wooden slat laid across the through holes of the plurality of support posts, in which a cross section of each of the through holes in the first direction includes tapered portions which are narrow at an approximately center portion and become wider toward outside.

This outdoor structure, which is installed outdoors, such as a bench, a fence, or a wooden path, includes a plurality of metal support posts each including one or more rectangular through holes and arrayed at least in one row in a first direction; and a wooden slat laid across the through holes of the plurality of support posts, in which a cross section of each of the through holes in the first direction includes tapered portions which are narrow at an approximately center portion and become wider toward outside.

An office system including a first component and a second component moveable relative to the first component. A distance and/or force multiplier is disposed between and coupled to the first and second components. The distance and/or force multiplier includes a shape memory material, wherein 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 distance and/or force multiplier moves the second component relative to the first component when the shape memory material is contracted to the energized state.

A chair provided with a plate, to which a seat is freely articulated above, by way of at least one first linkage and a second pair of linkages in the rear and front regions, a backrest being articulated laterally and freely to said seat.

The first end of a pair of cams is pivoted to the plate at the rear, and the second end is pivoted to the backrest.

The pair of cams has arc-like guiding means for the sliding of at least one seventh pivot which is integral with and protrudes from the backrest.

The first linkage, the second pair of linkages and the pair of cams are adapted to force the forward and downward movement of the seat with respect to a backward inclination that can be imparted to the backrest.

An office system including a first component and a second component moveable relative to the first component. A distance and/or force multiplier is disposed between and coupled to the first and second components. The distance and/or force multiplier includes a shape memory material, wherein 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 distance and/or force multiplier moves the second component relative to the first component when the shape memory material is contracted to the energized state.

A seat assembly is provided having a seat bottom and a seat back mounted adjacent the seat bottom. A cushion is disposed on at least one of the seat bottom and seat back and defines a seating surface. The seating surface has a plurality of regions. A controller is in communication with the cushion and is programmed to independently vary a stiffness of each of the regions along the seating surface.

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 seat assembly is provided having a seat bottom and a seat back mounted adjacent the seat bottom. A cushion is disposed on at least one of the seat bottom and seat back and defines a seating surface. The seating surface has a plurality of regions. A controller is in communication with the cushion and is programmed to independently vary a stiffness of each of the regions along the seating surface.

A self-adaption breathable cushion comprises a fixed base and a plurality of self-adaptive units integrated side by side and disposed on the fixed base; each of the adaptive units comprises a strap and an elastic member, the elastic member supports the strap to tension above the fixing base; when the strap is pressed and recessed, the elastic member deforms, so that the whole self-adaptive unit moves downwards; when the pressure is removed, the elastic member is reset, and the strap is also reset. The self-adaptive breathable cushion can be deformed self-adaptively according to the weight of a human body to be borne, so as to be attached to the human body, making the human body more comfortable.