DEVICE TO PREVENT TURNING OVER OF MOBILE LOAD-LIFTING SET Russian patent published in 2002 - IPC

FIELD: load lifting facilities. SUBSTANCE: proposed device has electric roll pickup 1 with two electrodes connected with sources of sound and light signals and actuating mechanism made in form of rollover protective mechanism installed under frame between front and rear wheels and consisting of housing with hydraulic cylinders whose rods are connected with ballast weights. Space can be connected through normally closed electromagnetic valves 21 and 22 with drain main line and through normally open electromagnetic valves 23 and 24 with hydraulic line. Electromagnetic valves of left-hand hydraulic cylinder are connected with right-hand electrode, and those of right-hand hydraulic cylinder, with left-hand electrode. Roll pickup is made in form of two similar symmetrically arranged vessels with oil on surface of which electrodes are mounted. Electrodes are hinge-connected by some ends on side inner surfaces of vessels. Float and contact are arranged on other end of each electrode opposite to each other. Contacts electrically interconnected and connected to current source are arranged opposite to above-indicated contacts on upper inner surfaces of vessels. EFFECT: improved safety. 1 dwg