TRACTIVE COUPLER Russian patent published in 2009 - IPC B60D1/01 

FIELD: mechanics.

SUBSTANCE: proposed device comprises tractive levers and hydraulic cylinder. Tractive levers represent two load-bearing fork levers (4, 5) with upper parts of their bases pivoted with weight-bearing joint (6) and between themselves. Lower part of every lever represents bosses (7) accommodating flexible elements (8). The ends of load-bearing levers feature mounting holes for cotter-pinned axles to pass through, the said axles being hinged, in their central part, by one-way hydraulic cylinder (11). Aforesaid axles feature balls (12) arranged in the slots of guides (14) bolted to side-members (16) of truck tractor frame. The said guides are furnished with wedge-like movable elements (17, 18) fitted in the guide slot open side and held in place with the help of adjusting screws (19). Flexible elements (22) are fitted between unsplit face walls of the guide slots, balls of one load-bearing fork lever and face walls formed by wedge-like movable elements fitted into the slots and the balls of the other load-bearing lever.

EFFECT: improved tractive-coupling properties, smooth run of vehicle.

2 cl, 3 dwg