LOAD-LIFTING TABLE Russian patent published in 2008 - IPC B66F7/06 B66F3/22 

FIELD: handling machinery.

SUBSTANCE: table includes a base and a movable platform, both being coupled by crossing levers of the "Nuremberg shears" type. The levers one ends are hinged to the base and the said platform, the other ends of the said levers being fitted, by means of rolling-contact bearing, in the guides arranged on the movable platform and base, respectively, to move therein. The table has a lift drive incorporating a main and supplementary nuts, a main and supplementary lead screws, reduction gear and its electric motor. The supplementary screw is arranged aligned with and opposite to the main one. The screws axes of symmetry are aligned with the axles of hinges of the first lever pair lower ends. Every nut has aligned opposing pins. The rolling-contact bearings of the second lever pair are coupled by a common axle accommodating grease boxes incorporating plain bearings and opposing pins for hinged connection with links. The links pairs are coupled with the main and supplementary nuts via opposing pins of the latter to locate the said links either in parallel or on sides of equilateral trapezium.

EFFECT: higher-efficiency load lifting and reliability.

2 cl, 5 dwg