TRANSPORTABLE GUARD FOR VEHICLE Russian patent published in 1996 - IPC

FIELD: forced stop of a vehicle. SUBSTANCE: device has a guard that consists of members for damaging a tire. The members are made up as pins and supporting folding frame made up as intersecting plates. The plates are pivotally interconnected to form a pivot-lever multi-link mechanism. The base of each pin is mounted on the axle of the respective pivot. The device is provided with a hollow housing made up as two detachable interconnected parts 4. The guard and pipe 1 is mounted inside the space. The pipe has a pair of piston 2 with rods 3 that project out of the end faces of pipe 1. Rods 3 and end plates are pivotally connected with the respective parts of the housing. The space between the pistons is in communication with a gas source to set the rods in motion and move the housing parts in mutually opposite directions. The multi-link mechanism is also provided with plates that are crossed out of the middle of its length so that the guard is not a straight line when it is open. EFFECT: enhanced reliability. 5 dwg