DEVICE TO PRECLUDE VEHICLE DOWNGRADE ROLLING Russian patent published in 1995 - IPC

FIELD: transport engineering. SUBSTANCE: device has mechanism to preclude longitudinal rolling over arranged under vehicle hood between front and rear wheel axles and has normally open and normally closed electromagnetic valves installed in air inlet and outlet pneumatic lines. Arranged in space between piston and wall at side of each rod in pneumatic cylinder housing is spring which can be compressed by moving rod. Each ballast weight of rod is fixed by lever with its brake antirolling stop which can be shifted and can embrace upper part of vehicle wheel tyre. Inner curvilinear surface of brake antirolling stop has recess whose pattern is mirror-like reflection of vehicle tyre tread pattern. Normally open electromagnetic valves of right-hand and left-hand pneumatic cylinders are connected with normally closed contact of second relay. Normally closed electromagnetic valves of left-hand and right-hand pneumatic cylinders are connected to normally open contact of second relay; normally open contact of first relay is connected, through signal lamp and switch, to normally closed electromagnetic valve installed at inlet of pneumatic system before mechanism which precludes rolling over of vehicle. EFFECT: enhanced safety of operation. 1 dwg