DRAW-AND-COUPLING GEAR Russian patent published in 2003 - IPC

FIELD: transport engineering. SUBSTANCE: invention relates to towing gears with hydraulic shock absorber. Proposed draw-and-coupling gear is provided with damping member made in form of leaf spring, hydraulic shock absorber formed by pull link being housing of hydraulic shock absorber, reservoir for working liquid, and rod. Piston is fitted on one end of rod. Space of reservoir communicates with space of housing of hydraulic shock absorber through throttling holes made in partition-fitted inside housing of hydraulic shock absorber. Partition and piston are furnished with system of valves. EFFECT: provision of stable movement of heavy trailers operating with heavy power tractors of high cross country capacity, reduced action of impact loads on members of draw-and-coupling gear. 2 dwg