TRAILER Russian patent published in 2011 - IPC B62D53/08 B62D63/08 B62D13/00 

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed trailer comprises chassis and dolly coupled with trailer frame by rotary table. Rotary table consists of top and bottom rings supporting round cross section curved shell and rod with ball mounted thereon. Said rod is provided with check valve. Said round cross section curved shell wall rigidly secured on rotary table top ring has groove made along shell length to receive pin moving therein. Pin is rigidly coupled with rotary table bottom ring and rigidly jointed to ring fluted section. Rings has its surfaces staying in contact with inner surface of aforesaid curved shell. Ring is provided with crosswise web provided with channels accommodating check valves.

EFFECT: decreased trailer wobble.

4 dwg