FIELD: construction.
SUBSTANCE: they include two flat wings inside a rectangular frame, formed by lateral sides, top and bottom sides. Each wing is suspended to the rectangular frame with possibility of rotation by means of upper and lower hinges. Rotation axis of every wing is shifted relative to the edge of the wing so, that whenever the wings is open its vertical ends are on both sides of the rectangular frame. Axis of rotation of the upper and lower hinges of every wing coincide with the axis of rotation of the wing, and the axis of rotation of every wing is shifted inside the rectangular frame relative to its outer surface. Upper side of the rectangular frame on its inner side is rigidly connected to an additional horizontal upper post, preventing the rotation of the wings inside the rectangular frame and located between the upper hinges, and the lower side of rectangular frame on its inner side is rigidly connected to additional horizontal bottom rack, preventing the rotation of the wings inside the rectangular frame and located between two lower hinges.
EFFECT: disclosed are tamperproof gates.
12 cl, 8 dwg
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