MECHANICAL LIFTING-ROTARY GATES Russian patent published in 2013 - IPC E05F15/00 E06B3/50 

FIELD: construction.

SUBSTANCE: gates comprise a support box, an overlapping monolithic plate, lever mechanisms, connection hinged joints and a drive. Two sides of the plate in its lower part are connected by hinged joints with two connecting rods of the drive. On the upper parts of these sides there are two sliders fixed rigidly and having a circle shape with parallel cut segments. On side walls in the upper part of the box there are two guides fixed with slots in each of them, in which sliders of the monolithic plate are placed. The upper part of each slot of the guide ends with a cylindrical surface, the inner diameter of which equals the diameter of the slider circle. The width of the slots is equal to the remaining part of the sliders' circle. The lower part of side walls of the box is equipped with two fixed stops.

EFFECT: improved operational characteristics.

3 cl, 4 dwg