ABSORBING APPARATUS Russian patent published in 2013 - IPC B61G9/18 B61G11/14 F16F3/87 F16F1/373 

FIELD: transport.

SUBSTANCE: invention relates to friction absorbing units of freight car automatic couplers. Absorbing apparatus comprises barrel-like casing with boss on bottom inner side, pressure cone, two friction wedges with bearing plate, pairs of moving and fixed plates, all arranged in said casing symmetrically with its inner walls. Besides, absorbing apparatus comprises retaining-return device composed of a stack of polymer resilient elements arranged together with bearing plate and wedges between pressure cone and casing bottom and tightened up by bolt passed through central hole. Every said polymer resilient element represents variable-cross-section body of revolution with stepped hole along axis of revolution. Section with maximum OD is located between two different-size end of said body to divide outer lateral surface of the latter into two adjacent parts. Distance from said section to smaller end makes 0.30-0.55 of that to larger end.

EFFECT: absorption capacity increased for classes T2, T3.

8 cl, 8 dwg