Multi-directional adjustable armrest pad and chair armrest device with armrest pad

A multi-directional adjustable armrest pad, mounted on a top end of a chair armrest, and the multi-directional adjustable armrest pad comprising:

• a base plate sealed and assembled with a top face of the chair armrest and locked with the chair armrest, wherein the base plate comprises a locking pin protruded on a top thereof, an end of the locking pin is connected to the base plate and used as a positioning part, and the other end of the locking pin is used as a pivot part;
• a pad body disposed on the top of the chair armrest and abutted with the base plate, wherein the pad body comprises a receiving portion disposed in the inside thereof, and the receiving portion has a sliding hole cut therethrough a bottom thereof, and a through hole cut therethrough a lateral side thereof, the locking pin of the base plate is inserted through the sliding hole and located inside the receiving portion;
• a slide control assembly disposed in the receiving portion, wherein the slide control assembly comprises a press control member, a longitudinally-slidable plate, a horizontal sliding shaft set, two restraining teeth plates and a bottom base plate, a face of the longitudinally-slidable plate is attached with a bottom of the receiving portion, and the longitudinally-slidable plate has a slider protruded thereon and corresponding in position to the sliding hole, the slider has a longitudinal hole cut therethrough and corresponding in position to the locking pin, the slider is movable in the sliding hole, the locking pin is movable in a hole direction along the longitudinal hole, and the longitudinally-slidable plate comprises a plurality of engaging frames disposed on two ends of other face thereof and arranged in interval, and the slide control assembly comprises a surrounding wall surrounding and framing the plurality of engaging frames;
• wherein two ends of the bottom base plate are engaged with the plurality of engaging frames, respectively, and the bottom base plate comprises a lateral hole formed thereon and corresponding in position to the longitudinal hole, an end of the bottom base plate is engaged with the press control member, and the bottom base plate has a plurality of elastic pins protruded on other end thereof, an end of each of the plurality of elastic pins is connected to the bottom base plate, and other end of each of the plurality of elastic pins is elastically abutted against an inner wall of the receiving portion, and an end of the press control member is engaged with the bottom base plate, and other end of the press control member is inserted out of the through hole;
• wherein the two restraining teeth plates are sandwiched between the bottom base plate and the longitudinally-slidable plate, and each of the two restraining teeth plates has a protrusion protruded thereon and corresponding to a side of the bottom base plate, and the bottom base plate has two tracks cut therethrough and corresponding in position to the protrusions of the two restraining teeth plates, respectively, and the two tracks are downwardly extended from the end, where the plurality of elastic pins are disposed, of the bottom base plate and then extended toward two sides of the bottom base plate, the two restraining teeth plates are moved close to or away from each other by moving the protrusions along the two tracks, each of the two restraining teeth plates has a teeth part disposed on a side thereof corresponding to the other of the two restraining teeth plates, and each of the two restraining teeth plates has an elastic member extended from an end thereof opposite to the teeth part, and each of the elastic members has an end connected to the restraining teeth plate and other end elastically abutted with the surrounding wall;
• wherein the horizontal sliding shaft set is mounted on the locking pin and disposed between the two restraining teeth plates and in the lateral hole, the horizontal sliding shaft set further comprises a main body and a teeth disk member, the main body has a curved groove recessed thereon, and the main body has a lateral teeth row disposed on a side thereof and engaged with the teeth part of one of the two restraining teeth plates, the teeth disk member is assembled in the curved groove, the teeth disk member has a shaft hole cut therethrough, hole shapes of the shaft hole corresponds to that of the positioning part and the pivot part, and the teeth disk member is pivotally swingable relative to the main body and has an arc teeth-row disposed on a side thereof and engaged with the teeth part of the other of the two restraining teeth plates;
• wherein when the press control member is pressed, engagements between the two restraining teeth plates and the horizontal sliding shaft set are released, the pad body is adjustable to move longitudinally and laterally and rotate about the chair armrest through cooperation between the longitudinal hole and the horizontal sliding shaft set, cooperation between the slider of the longitudinally-slidable plate and the through hole, and pivot cooperation between the main body and the teeth disk member.