Patent ID: 6899394
Filing Date: 2005-05-31
Classification: A47C,A47D

Abstract:
1. A chair comprising: a seat member having a bottom face, and left and right sides formed with left and right leg-holding seats, respectively, each of said leg-holding seats defining a leg extension bore therethrough, each of said left and right leg units having an elongated front leg extending through said leg extension bore in a respective one of said leg-holding seats so as to permit sliding movement of said seat member along said elongated front legs of said left and right leg units; said left and right leg units connected to said seat member; a rack-and-pinion assembly including a pair of racks respectively fixed to and extending along the length of said left and right leg units, a driven shaft mounted rotatably on said seat member and having two opposite ends disposed respectively adjacent to said racks, and a pair of pinions respectively fixed to said opposite ends of said driven shaft and meshing respectively with said racks; and a drive unit for driving said driven shaft, which in turn results in sliding movement of said seat member along said left and right leg units.