TRAILER Russian patent published in 2006 - IPC B62D63/06 B60T7/20 

FIELD: transport engineering.

SUBSTANCE: proposed trailer consists of body installed on frame which is coupled with roll-under truck by means of slewing circle. Roll-under truck is provided with wheels with built-in brake drums with adjoining balance shaft furnished with tie-rod connected with lever. Said lever is connected with tie rod 10 coupled with cylindrical stem 11. Stem 11 is movably fitted in hole 12 made in lunette 13, is spring-loaded relative to lunette by compression spring 14 and is connected by one end with plate 15 installed for movement in slots 16 and connected by other end by means of pin 17 with fork 18 of double-arm lever 19 which is mounted by means of hinge joint 20 on pole 21 of roll-under truck. Lunette 13 is rigidly connected to pole 21, and frame is furnished with rear wheels.

EFFECT: improved safety of trailers owing to automatic operation of packing brake at moment of coupling and uncoupling of trailer-train members.

3 dwg