RAIL CAR Russian patent published in 2006 - IPC B61F5/24 

FIELD: railway transport.

SUBSTANCE: invention relates to rail vehicles, mainly, to devices preventing turning over, misalignment of car frame. Body 1 of freight car is hinge-coupled with overspring beams 3 spring-loaded relative to side frames 13 of two-axle bogies. Two pairs of bearings 8 are rigidly secured on overspring beams in zone of their end sections and two pairs of bushings 5 are mounted for movement in which rods of torsions 7 are arranged, being provided in accordance with indicated pairs, with smooth and splined surfaces and levers 14 interacting with cast side frames of bogies. Compression springs 9 are arranged on torsion rods between bearings and bushings. Each pair of movable bushings is interconnected by crossmembers 10 with curvilinear surface 11 in contact with mating conical surface 12 made on each of bogies side frames.

EFFECT: automatic adjustment of rigidity of car spring suspension in motion.

4 dwg