Abstract: A matting coating composition includes acrylic resin, solvent, retarder, and matting agent, in which based on 100 parts by weight of the matting coating composition, the acrylic resin accounts for 45 wt % to 60 wt %; the solvent accounts for 3 wt % to 17 wt %; the retarder accounts for 1 wt % to 8 wt %; and the matting agent is less than or approximately equal to 5 wt %.

Abstract: A manufacturing method for a case is provided. The manufacturing method includes: providing a plurality of pieces of fiber cloth; forming an opening in a part of the plurality of pieces of fiber cloth; stacking the plurality of pieces of fiber cloth to form a stacked structure, where the part of the plurality of pieces of fiber cloth with the opening is arranged on top to form a concave region on an upper surface of the stacked structure; and pressing a mold against the stacked structure, to form a case. The case has a concave structure at a position corresponding to the concave region.

Abstract: An armrest adjustment mechanism is disclosed. The armrest adjustment mechanism includes a sleeve, a tubular member, a slider, a long plate, a fixing plate, a guiding plate, a retaining block, a lower base, an armrest pad and a lever arm. The armrest adjustment mechanism features on that: an insertion hole is disposed on upper end of the long plate while the lever arm is arranged inside a space between the armrest pad and the lower base. The lever arm inserts through the insertion hole on top end of the long plate so that the long plate hangs on the lever arm, working as a load. One end of the lever arm is arranged on one side of the lower base, working as the fulcrum while the other end of the lever arm is arranged on an opposite side of the lower base correspondingly. A push member projecting from a corresponding opening of the lower base is arranged on the other end of the lever arm, working as the effort.

Abstract: An armrest adjustment mechanism is disclosed. The armrest adjustment mechanism includes a sleeve, a tubular member, a slider, a long plate, a fixing plate, a guiding plate, a retaining block, a lower base, an armrest pad and a lever arm. The armrest adjustment mechanism features on that: an insertion hole is disposed on upper end of the long plate while the lever arm is arranged inside a space between the armrest pad and the lower base. The lever arm inserts through the insertion hole on top end of the long plate so that the long plate hangs on the lever arm, working as a load. One end of the lever arm is arranged on one side of the lower base, working as the fulcrum while the other end of the lever arm is arranged on an opposite side of the lower base correspondingly. A push member projecting from a corresponding opening of the lower base is arranged on the other end of the lever arm, working as the effort.

Abstract: A hot-cold cushion includes a heat/cool device, a connecting tube and a cushion with circulating pipes. The heat/cool device composed of a thermo semiconductor chip, a thermoconductor, a fan, a heat dissipation member, a box with liquid, and a hydraulic pump is connected with circulating pipes inside the cushion by the connecting tube so as to form a circulation loop. By exchange of the positive/negative electrodes of direct current, the thermo semiconductor chip produces heat or cold that is circulated and dissipated by the heat/cool device so as to regulate the temperature of the cushion into a suitable range for human bodies. Therefore, the hot-cold cushion achieves better effect.

Abstract: A hot-cold cushion includes a heat/cool device, a connecting tube and a cushion with circulating pipes. The heat/cool device composed of a thermo semiconductor chip, a thermoconductor, a fan, a heat dissipation member, a box with liquid, and a hydraulic pump is connected with circulating pipes inside the cushion by the connecting tube so as to form a circulation loop. By exchange of the positive/negative electrodes of direct current, the thermo semiconductor chip produces heat or cold that is circulated and dissipated by the heat/cool device so as to regulate the temperature of the cushion into a suitable range for human bodies. Therefore, the hot-cold cushion achieves better effect.

Abstract: A gear-controlled height-adjusting mechanism for armrest of office chair mainly includes an armrest support received in a housing, an elongated slide member vertically movably connected to an upper outer side of the armrest support and having a bottom rack, and a gear set mounted on the armrest support. The gear set includes a driving gear meshing with the rack, and a driven gear meshing with a vertical row of locating holes provided in the housing. The height-adjusting mechanism further includes a release mechanism for freely lowering the armrest support to a desired height. To adjust the armrest to a higher position, simply alternately upward pull and release the slide member for the bottom rack to forward rotate the driving gear and accordingly the driven gear. When the forward rotating driven gear engages with the locating holes, the armrest support is gradually moved upward in multiple stages.

Abstract: A gear-controlled height-adjusting mechanism for armrest of office chair mainly includes an armrest support received in a housing, an elongated slide member vertically movably connected to an upper outer side of the armrest support and having a bottom rack, and a gear set mounted on the armrest support. The gear set includes a driving gear meshing with the rack, and a driven gear meshing with a vertical row of locating holes provided in the housing. The height-adjusting mechanism further includes a release mechanism for freely lowering the armrest support to a desired height. To adjust the armrest to a higher position, simply alternately upward pull and release the slide member for the bottom rack to forward rotate the driving gear and accordingly the driven gear. When the forward rotating driven gear engages with the locating holes, the armrest support is gradually moved upward in multiple stages.

Abstract: A mechanism for adjusting distance between armrests of office chair includes a manipulating handle, to which a slide member, a base member, and an upper and a lower ratchet washer are sequentially mounted from top to bottom. The two ratchet washers contact with each other either in a tight or a loose relation through control of the manipulating handle. The base member is screwed to an underside of a seat of the chair, and the slide member is slidable relative to the base member with an outer end connected to a lower end of one armrest. By turning the handle in one direction for the two ratchet washers to contact with each other in the loose relation, the slide member can be loosened and adjusted to a desired position relative to the base member and thereby change the distance of a corresponding armrest relative to another armrest.

Abstract: A height-adjusting mechanism for armrest includes a slider movably mounted in a slide way of a sleeve connected at a lower end to a seat of an armchair. A retaining block horizontally extends through a transverse hole on the slider and into one of many vertically spaced locating holes on the slide way to hold the slider at a certain height relative to the sleeve. A long plate having a top handle is attached to one side of the slider and could be pulled upward and elastically return to an original position when being released. When the long plate is pulled upward, it drives the retaining block to disengage from the locating hole and allows the slider to freely move up and down. And, when the long plate is released, the retaining block is driven to engage into another locating hole to hold the slider to a new height.

Abstract: An adjusting mechanism for easily and simultaneously adjusting the height and the angular orientation of an armrest is provided. The adjusting mechanism includes a supporting sleeve connected at a lower end to a chair and an outer casing connected at an upper end to an armrest and put around the supporting sleeve. A joint pipe fixed in an upper part of the supporting sleeve includes a first half having multiple rows of locating holes and a second half having multiple horizontally spaced stop grooves. A bent control arm is disposed in the outer casing with an upper end projected from the outer casing to serve as a hand control and a lower end extended into the supporting sleeve.