Work surface height adjustment mechanism

Abstract

A mechanism for adjusting the height of a work surface (12) includes left- and right-side cable lift mechanisms (16, 18) coupled to a central drive mechanism (20) through cables (96). Each cable lift mechanism (16, 18) includes a hanger clip (22) engaging wall panel slots (15), a mounting plate (38) removably suspended from the hanger clip (22) and a vertically movable extrusion (74) guided along the plate (38) and having pulleys (88) engaging one of the cables (96) to support the work surface (12). Antidislodgment latches (50, 60) prevent accidental dislodgment of the mounting plate (38) and clip (22). One embodiment of the central drive mechanism (20) includes a motor-driven screw (134) and a forward slide block (114) positioned within an elongated channel (110) and mounting a slidable yoke (122) securing ends of the cables (96). The slide block (114) bears against a nut (146) captured within the channel (110) and threadably received on the screw (134). Axial movement of the nut (146) causes corresponding movement of the slide block (114) and yoke (122), thereby exerting forces through the cables (96) to selectively raise or lower the extrusion (74) and work surface (12).

Dependencies are inferred from the claim text.