ROADBLOCK FOR VEHICLES Russian patent published in 2022 - IPC E01F13/12 

FIELD: police equipment.

SUBSTANCE: invention is intended for the forced stopping of vehicles. The roadblock for vehicles consists of a supporting hinged-folding structure in the form of intersecting strips with axes in the form of metal rods and striking elements mounted on them, while on the outside of the striking elements there are longitudinal spiral grooves or projections with an angle of inclination from 10 to 60 degrees, depth (height) from 0.2 to 0.5 of the wall thickness of the striking element and width from 0.1 to 0.4 of the circumference of the outer side of the striking element.

EFFECT: ensuring guaranteed disconnection of the striking element from the main structure when hitting wheeled vehicles, reliable fixation of the striking element in the wheel.

1 cl, 1 tbl