The present invention provides a chair and a chair lifting adjustment control mechanism thereof. The chair lifting adjustment control mechanism comprises a base, an executing member slidably connected to the base for pressing a pushbutton of a telescoping member, and a drive-by-wire assembly with one end connected to the executing member to enable the executing member to produce a horizontal displacement. The drive-by-wire assembly comprises a dragline with one end connected to the executing member, and the executing member has a driving ramp for facing the pushbutton and pressing or relaxing the pushbutton during the horizontal displacement.

A guide spring for a seating device has an inner portion, an outer portion, and a spiral coiled portion extending more than one convolution between the inner portion and the outer portion. The inner portion is firmly attached to a rod and the outer portion is firmly attached to a body. The guide spring thereby secures a radial position of the rod within the body, allowing the rod to move axially relative to the body when a load is placed onto the seating device. When in use, the guide spring deforms from a flat spiral shape to a conical spiral shape with axial movement of the rod relative to the body.

The invention relates to the field of furnishing. In particular, the invention relates to a stiffness adjustment device movable between an interference position for imposing a restriction on the deformation of a seat, back or bedding spring, and a non-interference position for releasing the spring from the restriction. The stiffness adjustment device comprises a resilient element, e.g. such as a flexible blade and, as it moves between the interference and non-interference positions it passes through an intermediate position in which the resilient element is subjected to resilient bending that is greater than in the interference and non-interference positions.

A seating cushion with a pocketed spring assembly includes a plurality of interior strings of springs joined to each other. The interior strings of springs comprises a plurality of interconnected pockets. Each pocket contains at least one coil spring. The pocketed spring assembly forms a central matrix. The pocketed spring assembly further includes at least one perimeter string of springs. Each perimeter string of springs comprises a plurality of interconnected perimeter pockets. Each pocket of the central matrix has a maximum diameter or width of a first dimension and each pocket of the perimeter string of springs has a maximum diameter or width of a second dimension. The first dimension is greater than the second dimension.

A seating cushion with a pocketed spring assembly includes a plurality of interior strings of springs joined to each other. The interior strings of springs comprises a plurality of interconnected pockets. Each pocket contains at least one coil spring. The pocketed spring assembly forms a central matrix. The pocketed spring assembly further includes at least one perimeter string of springs. Each perimeter string of springs comprises a plurality of interconnected perimeter pockets. Each pocket of the central matrix has a maximum diameter or width of a first dimension and each pocket of the perimeter string of springs has a maximum diameter or width of a second dimension. The first dimension is greater than the second dimension.

A chair has a seat portion and a leg portion. The seat portion and the leg portion are joined by a structure that allows that seat portion to wobble relative to the leg portion. The structure can including one or more resilient member to create the wobble and one or more motion restrictor member to limit the amount of wobble or prevent wobble.

A waist support chair includes a framework, a back support member, and a hips support member. The framework includes a back support frame and a chair bottom pivotally coupled to each other. The back support member is arranged on the back support frame and adjacent to the chair bottom. The back support member includes two upper support elements horizontally disposed and left-right symmetric to each other and two lower support elements horizontally disposed and left-right symmetric to each other. Two lower support elements are disposed between two upper support elements and the chair bottom. The hips support member is arranged on the chair bottom and includes a plurality of hollow elastic columns. When pressure is applied to the hollow elastic columns, the hollow elastic columns are compressed to release air.

A plurality of springs are arranged between the seat board and the underframe of the anti-noise spring chair; the top of the underframe is provided with a plurality of first seating grooves in which first mounting holes are formed; the bottom of the seat board is provided with a plurality of second seating grooves corresponding to the first seating grooves; second mounting holes are formed in the plurality of second seating grooves; first gaskets are arranged in the first seating grooves, and second gaskets are arranged in the second seating grooves; and one ends of the springs are abutted against the first gaskets, and the other ends of the springs are abutted against the second gaskets. The anti-noise spring chair effectively solves a problem that noise is generated when a spring chair is used.

A plurality of springs are arranged between the seat board and the underframe of the anti-noise spring chair; the top of the underframe is provided with a plurality of first seating grooves in which first mounting holes are formed; the bottom of the seat board is provided with a plurality of second seating grooves corresponding to the first seating grooves; second mounting holes are formed in the plurality of second seating grooves; first gaskets are arranged in the first seating grooves, and second gaskets are arranged in the second seating grooves; and one ends of the springs are abutted against the first gaskets, and the other ends of the springs are abutted against the second gaskets. The anti-noise spring chair effectively solves a problem that noise is generated when a spring chair is used.

Furniture is assembled from elastic modules enabling rapid and convenient assembly and disassembly. The elastic module has a spring, an outer covering layer, and an end member attached to an end face of the outer covering layer. A mattress includes a plurality of individual spring assemblies (145), with each spring assembly including at least one spring (134) and a spring cap (144, 150, 161, 164, 171, 184, 194, 204). Each spring cap has at least one first attachment fitting (168, 178, 174, 186, 196) and at least one second attachment fitting (169, 180, 176, 187) with each first attachment fitting engageable into or onto and removable from a second attachment fitting of an adjoining spring cap. The spring assemblies are attached to each other via the first and second attachment fittings, forming the individual spring assemblies into a spring core. A top pad is positioned on top of the spring core. The mattress can be quickly dis-assembled and stored in a compact space by removing the top pad and separating the spring assemblies from each other.