RAILWAY CAR BOGIE SUPPORT SLIDER Russian patent published in 2011 - IPC B61F5/14 F16F3/06 

FIELD: transport.

SUBSTANCE: proposed slider comprises base with bottom and wall stretching from bottom upward to make bake intake structure with open top, and twin springs arranged at base intake structure. Said twin springs incorporate first helical spring arranged inside second helical spring. Each said spring features preset height in uncontracted state. Support slider comprises elastomer spring made up of cylindrical rod arranged inside first helical spring, and cap. Elastomer spring, as-compressed, features height smaller than that of first helical uncontracted spring and second helical spring. Cap has top section and wall stretching downward from top section to make cap intake structure with open bottom. First and second helical spring sections enter the cap intake structure open bottom. First and second helical springs feature said heights in uncontracted state and rated loads. Elastomer spring features such height in uncontracted state that, in normal run of empty car, said cap stays out o contact with elastomer spring. Cap comes in contact with elastomer spring when empty car reaches preset angle of departure from vertical. Can stays in contact with elastomer spring when first and second helical springs are contracted to have 1.2 cm-gap between cap and base surface.

EFFECT: improved control to limit horizontal and vertical displacement of car in motion.

14 cl, 8 dwg