Abstract: A pillow structure includes a pillow, a buffering layer mounted in the pillow, a base plate mounted on a bottom of the buffering layer and received in the pillow, and elastic cushions mounted on the base plate and drawn by adjusting devices. The elastic cushions are mounted on the bottom face of the base plate to support and adjust the height of the pillow, such that the pillow has an optimum height to provide a comfortable sensation to a user when sleeping at a supine position and sleeping sideways. The elastic cushions are also mounted on the top face of the base plate to push the buffering layer of the pillow so as to support the user's head and neck.

Abstract: A chair back structure includes a flexible sheet, the flexible sheet mounted on a support plate so as to adjust a curvature of a chair back by changing a curvature between two ends of the flexible sheet. A fixing segment of the flexible sheet is connected with an end of the support plate. The support plate includes two tilted abutting tabs configured to abut against with a moving segment of the flexible sheet in a sliding path, such that when the moving segment is operated to change the curvature of the flexible sheet, the moving segment slides along the two tilted abutting tabs forward or backward so as to produce a displacement, thus enhancing a bending deformation of the chair back.

Abstract: A chair back structure includes a flexible sheet, the flexible sheet mounted on a support plate so as to adjust a curvature of a chair back by changing a curvature between two ends of the flexible sheet. A fixing segment of the flexible sheet is connected with an end of the support plate. The support plate includes two tilted abutting tabs configured to abut against with a moving segment of the flexible sheet in a sliding path, such that when the moving segment is operated to change the curvature of the flexible sheet, the moving segment slides along the two tilted abutting tabs forward or backward so as to produce a displacement, thus enhancing a bending deformation of the chair back.

Abstract: A lifting holder structure contains a base and a moving rod, and the base includes plural fitting sleeves which are fitted together, the moving rod includes a first screwing post arranged on a bottom end thereof and fitted into a second screwing post via a lowermost of the plural fitting sleeves. The second screwing post and the plural fitting sleeves are fixed via an interstitial connecting structure, and a top of the second screwing post is limited by a driving post within an angle range and is driven by an angular coupling structure, such that the driving post rotates to drive the second screwing post and a first screwing post to change a pitch stroke, thus moving a lifting holder vertically.

Abstract: A pad structure for a chair back contains a pad, an adjusting member disposed on a back side of the pad, and a rail plate connected with the adjusting member. The pad is capable of being adjusted frontward and backward. The adjusting member includes a positioning panel to axially connect with a toothed edge of each of two toothed arms. Another end of one toothed arm is secured on a face of the rail plate by using a first connector, and another end of another toothed arm is coupled with a slideable deck by a second connector to form a multi-section engaging design. Thereby, the two toothed arms slide along the slideable plate to change a relative angle between the two toothed arms.

Abstract: A pad structure for a chair back contains a pad, an adjusting member disposed on a back side of the pad, a rail plate connected with the adjusting member, such that the pad is capable of being adjusted frontward and backward, wherein the adjusting member includes a positioning panel to axially connect with a toothed edge of each of two toothed arms, and another end of one toothed arm is secured on a face of the rail plate by using a first connector, another end of another toothed arm is coupled with a slideable deck by ways of a second connector to form a multi-section engaging design; thereby the two toothed arms slide along the slideable plate to change a relative angle between the two toothed arms.

Abstract: A pillow structure substantially has a bottom board 1 mounted at a bottom inside a pillow body 10 and at least one resilient pad 2 controlled by an adjuster 4 mounted on the bottom board 1. By having the resilient pad 2 to support a buffering layer 3 for neck leaning, curved degrees of the pillow body 10 are adjusted corresponding to different users.

Abstract: A padding structure for a chair includes a back support, a seat plate, a foam disposed on the back support, two guiding lines mounted on the back support, and two guiding lines mounted on the seat plate. Each guiding line of the back support and the seat plate is connected with a resilient member to control flexibility of the resilient member. An adjustable member is used to control the expansion and retraction of the guiding lines to drive the resilient members to change their radii of curvature, correcting the user's improper posture.

Abstract: A padding structure for a chair comprises a back support and a seat plate, a foam disposed to the back support, two guiding lines mounted on the back support, and two guiding lines mounted on the seat plate, each guiding line of the back support and the seat plate connected with a resilient member to control flexibility of the resilient member, and an adjustable member being used to control the expansion and retraction of the guiding lines to drive the resilient members to change their radians, correcting user's improper posture.

Abstract: An adjustment device with a dual-guiding structure has two worm wheels respectively meshed with two coaxial worm gears. The two worm gears are pivotally and longitudinally fixed by a driving shaft in line. An adjacent end of each worm gear has a locking recess to receive a locking head mounted on the driving shaft. Thereby, the locking head is selectively engaged with the locking recess of one of the worm gears to drive the corresponding worm gear when the locking head on the driving shaft is reciprocated. Then, one worm wheel engaged with the corresponding worm gear is rotated to rewind or release the wires on the work wheel.

Abstract: An adjustment device with a dual-guiding structure has two worm wheels respectively meshed with two coaxial worm rods (the worm wheel and worm shaft structure is an application of gear and threaded rod). Two worm rods are pivotally and longitudinally fixed by a driving shaft in line. An adjacent end of each worm rod has a locking recess to receive a locking head mounted on the driving shaft. Thereby, the locking head is selectively engaged with one corresponding locking recess to drive the corresponding worm rod when the locking head on the driving shaft moves in reciprocation. Then, one worm wheel engaged with the corresponding worm rod is rotated to make the wires on the work wheel to rewind or release.

Abstract: A backrest adjustment device includes a bottom board, a support board movable relative to the bottom board, and two opposite linkages pivotally mounted between the support board and the bottom board to drive the support board to move relative to the bottom board to change the distance between the support board and the bottom board. Thus, the two linkages are pivoted to drive the support board to move relative to the bottom board to change the distance between the support board and the bottom board so as to adjust the position of the backrest relative to the seat.

Abstract: A backrest adjustment device includes a bottom board, a support board movable relative to the bottom board, and two opposite linkages pivotally mounted between the support board and the bottom board to drive the support board to move relative to the bottom board to change the distance between the support board and the bottom board. Thus, the two linkages are pivoted to drive the support board to move relative to the bottom board to change the distance between the support board and the bottom board so as to adjust the position of the backrest relative to the seat.

Abstract: A heat dissipation assembly comprises a printed circuit board (PCB) (20), a chip (30) and a heat sink (10). The PCB comprises a grounding circuit and four through apertures (22) in the grounding circuit. The chip is mounted on the PCB, and is surrounded by the through apertures. The heat sink has four metal columns (16) depending from a bottom surface of a base (12) thereof, the columns corresponding to the four through apertures. A method of assembling the heat dissipation assembly includes the steps of: mounting a chip on a PCB; inserting metal columns of a heat sink into corresponding through apertures of the PCB; and welding the metal columns in the through apertures so that the heat sink is in intimate thermal contact with an upper surface of the chip.

Abstract: A heat dissipation assembly comprises a printed circuit board (PCB) (20), a chip (30) and a heat sink (10). The PCB comprises a grounding circuit and four through apertures (22) in the grounding circuit. The chip is mounted on the PCB, and is surrounded by the through apertures. The heat sink has four metal columns (16) depending from a bottom surface of a base (12) thereof, the columns corresponding to the four through apertures. A method of assembling the heat dissipation assembly includes the steps of: mounting a chip on a PCB; inserting metal columns of a heat sink into corresponding through apertures of the PCB; and welding the metal columns in the through apertures so that the heat sink is in intimate thermal contact with an upper surface of the chip.