Patent ID: 7841665

Claim:
An armrest comprising: a tubular support constructed for attachment to a chair; an armrest assembly telescopingly positioned in the tubular support, wherein the armrest assembly comprises a sleeve and a post; wherein the sleeve includes an aperture adapted to receive an operative member of a height adjustment mechanism; wherein the post includes detents extending down the length of a first vertical surface; and the height adjustment mechanism slidably received in the armrest assembly, wherein the height adjustment mechanism comprises an actuator rod including an angled ramp, an inclined wedge, and a pair of angled surfaces, wherein the inclined wedge and the angled surfaces are substantially parallel with one another; the operative member; a locking member including teeth, an inclined surface, and a pair of lateral followers; and a resilient member; and wherein the actuator rod operatively engages the locking member with the inclined wedge mateably engaged with the inclined surface and the angled surfaces slideably engaged with the lateral followers.