Patent ID: 6994400

Claim:
A chair comprising: a base; a seat plate supported above said base; a seat pan slidably mounted to said seat plate so as to be slidable in the longitudinal direction; longitudinally operating means for sliding said seat pan in the longitudinal direction with respect to said seat plate, said seat pan comprising first receiving means for receiving said longitudinally operating means; and locking means for locking said seat pan in a fixed longitudinal position relative to said seat plate; said locking means comprising transversely movable engaging means for engaging said seat plate, said transversely movable engaging means being movable by said longitudinally operating means, wherein said seat plate comprises a plurality of notches, said first receiving means of said seat pan comprising at least one aperture, said transversely movable engaging means being movable between an extended position extending through said at least one aperture to engage at least one of said plurality of notches, and a retracted position being retracted from said at least one aperture so as not to engage said at least one of said plurality of notches.