Patent ID: 6289825
Filing Date: 2001-09-18
Classification: A47B

Abstract:
An adjustment mechanism for vertically adjusting a work surface of a workstation, which comprises:(a) a stationary first member defining a longitudinal axis of the mechanism;(b) a movable second member connected to the work surface of the workstation and being movable relative to the stationary first member in a substantially vertical direction along the longitudinal axis of the mechanism;(c) a support having a first end and a second end and fixably mounted at the second end to the stationary first member and having a threaded opening at the first end and a bore extending from the threaded opening toward the second end of the support substantially along the longitudinal axis of the mechanism;(d) a threaded member rotatably connected to the movable second member and extending through the threaded opening of the support into the bore wherein threads of the threaded member engage threads of the threaded opening;(e) a spring extending between the stationary first member and the movable second member substantially along the longitudinal axis of the mechanism and tending to bias the members apart; and(f) an operating mechanism for rotating the threaded member in the threaded opening of the support wherein as the threaded member rotates, the second member moves relative to the first member and the spring compressed or extends based on a direction of rotation of the threaded member.