Patent ID: 7159942
Filing Date: 2007-01-09
Classification: A47C

Abstract:
1. A horizontal adjustment mechanism for use with a chair having a base, a seat supported on the base and defining a fore-to-aft longitudinal axis, and a seat back, the mechanism comprising: a first plate adapted to be coupled to the base; a second plate adapted to be coupled to the seat, the second plate having a mating portion and being slidably coupled to the first plate such that the second plate can move relative to the first plate along the longitudinal axis of the seat; and a lever mechanism rotatably coupled to the first plate, said lever mechanism having a lever arm, a cam linkage rotatably coupled to the lever arm and slidingly coupled to the first plate, and a mating portion adapted to be releasably received in the mating portion of the second plate, wherein rotation of the lever arm translates into linear movement of the cam linkage in a direction generally parallel with the longitudinal axis of the seat to selectively disengage the mating portion of the lever mechanism from the mating portion of the second plate to allow the second plate to move relative to the first plate.