Patent ID: 6257531
Filing Date: 2001-07-10
Classification: A47B,Y10S

Abstract:
An articulated support assembly adapted for adjustably supporting a computer keyboard or workstation on a primarily horizontal tray, the tray's normally unused position below the horizontal surface to which it is mounted horizontally extendable and raised to positions below and above the desk surface sufficiently to permit substantially any height of user to stand or sit at the desk or workstation in proper ergonomic positions, said support comprising:first and second attachment members adapted to be attached to the bottom surface of the horizontal support member and positioned relative to the front edge with members that adjust to the vertical thickness of the horizontal support member;a generally U shaped subassembly consisting of two primary elongated arm members joined by a torsion tube and having latches at the four corners of the subassembly, the latches being controlled at two central locations by cable coupled to a trigger release mechanism;second generally U-shaped subassembly consisting of elongated central arms linked together by a torsion tube has four fixed attachment points at its extreme four corners that connect to two rotating hubs from the primary subassembly and two rotating hubs from the handle subassembly;a pair of handle subassemblies that contain two rotating hubs and two trigger release mechanisms axially joined that permit the user to release all pivot points from their normally latched positions; anda keyboard tray or workstation platform that has a primarily horizontal lateral surface for the support of a computer keyboard or any desired working platform, the platform being adjustable in relation to its horizontal angle as relating to the wrist angle of the user.