Tiltable armrest assembly and chair including the same

A tiltable armrest assembly comprising:

• a fixing bracket part having an inner space that is open upward;
• a lifting part provided to move vertically on an upper portion of the fixing bracket part;
• a tilting arm pad part provided to slide and tilt in a front-rear direction on an upper end portion of the lifting part;
• and
• a safety cover part configured to be linked to the tilting arm pad part when the tilting arm pad part tilts and configured not to be linked to the tilting arm pad part when the tilting arm pad part slides, the safety cover part being configured to cover a gap between the lifting part and the tilting arm pad part,
• wherein the safety cover part includes a guide protrusion that is guided by a sliding guide slot locked to the tilting arm pad part in a tilting direction and formed to slide in the front-rear direction on the tilting arm pad part in a sliding direction.

A chair comprising:

• a seating plate part on which a user sits;
• a pair of armrest assemblies provided at respective left and right portions of the seating plate part and configured to support the user's arm;
• and
• a backrest part having an upper end portion provided to tilt around a lower end portion in a front-rear direction on a rear end portion of the seating plate part,
• wherein the pair of armrest assemblies include:
• a fixing bracket part fixed to a corresponding one of the left and right end portions of the seating plate part and having an inner space that is open upward;
• a lifting part provided to move vertically on an upper portion of the fixing bracket part;
• a tilting arm pad part provided to move and tilt in a front-rear direction on an upper end portion of the lifting part;
• and
• a safety cover part configured to be linked to the tilting arm pad part when the tilting arm pad part tilts and configured not to be linked to the tilting arm pad part when the tilting arm pad part slides, the safety cover part being configured to cover a gap between the lifting part and the tilting arm pad part,
• wherein the tilting arm pad part is formed with a sliding guide slot to slide in the front-rear direction with respect to the safety cover part.