ROADBLOCK Russian patent published in 2022 - IPC E01F13/12 F41H11/08 

FIELD: territory protection.

SUBSTANCE: invention relates to devices designed to prevent unauthorized travel on a controlled section of a highway. A roadblock includes a horizontal axial beam and supports attached to it, made of sheets of high-strength steel and having a shape of an equilateral triangle, sides of which are concave inward in an arc. Supports are made at an angle of 55-85° to the axial beam. Any two adjacent supports are inclined in opposite directions, while one vertex of any support is connected to one vertex of the neighboring support, and the other two vertices are connected, respectively, to two vertices of the other neighboring support. Extreme supports are connected to only one adjacent support.

EFFECT: ensuring the rigidity of the structure to resist the resulting deformation and providing a stopping effect on the approaching vehicle due to the guaranteed introduction of vertices of supports into the roadbed and the exclusion of its shift and slippage.

2 cl, 1 tbl, 1 dwg