FOLDING STRUCTURE FOR MULTI-TIER ARRANGEMENT OF EQUIPMENT WITH COMPENSATION OF GRAVITATIONAL FORCE FOR FOLDING AND UNFOLDING OF HINGE-LEVER MECHANISM, OPENING IN VERTICAL PLANE Russian patent published in 2022 - IPC B66F3/22 

FIELD: machine building.

SUBSTANCE: invention can be used as a sliding frame for creation of stationary or mobile devices with multi-tier arrangement of equipment in a vertical plane. Structure comprises a multi-section hinge-lever mechanism of a pantograph type, which opens in a vertical plane, consisting of one or more hinge-lever groups. Several hinge-lever groups are combined into a single movable mechanism by means of synchronization levers. Hinge-lever mechanism rests on support axes located in the central part of the hinge-lever mechanism, which connect it to the base of the structure. In vertical opening, the upper half of the mechanism rests on support axles and stands on them, while the lower part is suspended on the same support axes. Upper part of the hinge-lever mechanism tends to fold under the action of gravity, while the lower part is opened, and since it is a single hinge-lever mechanism, the swing principle begins to work: the two halves mutually compensate for each other and balancing each other, thus compensating for the gravitational force on folding and unfolding of the hinge-lever mechanism, which opens in the vertical plane. Base must be lifted above the surface to be put into working condition.

EFFECT: considerable reduction of force for opening and closing of structure due to compensation of gravitational component of force for folding and unfolding of hinge-lever mechanism.

1 cl, 9 dwg