PLATFORM LIFTING APPARATUS WITH RACK AND SPROCK LIFTING MECHANISM

摘要

Plate lift apparatus for carrying and presenting trim plates for installation on a construction site, having a telescopic mast (10) formed of a plurality of members (11, 12, 13) connected to a leg (40) wheeled (43) and provided with a plate frame (30) connected by an adjustable hinge to the upper end of the mast (10) and a lifting mechanism of the mast (10). The lifting mechanism (20), carried by the upper end of the lower element (11) of the mast (10), consists of a pinion (232) cooperating with a rack carried by the intermediate element (12) the mast (10), the pinion (232) being carried by an axis (231) whose ends are each provided with a crank (2 1a, b).