DRAW COUPLER (VERSIONS) Russian patent published in 2011 - IPC B62D53/04 B60D1/14 

FIELD: transport.

SUBSTANCE: invention relates to machine building. In compliance with first version, draw coupler comprises draw lever and two integrated main hinges coupled with draw lever. Proposed device incorporates self-aligning support wheel coupled with additional vertical hinge, and casing accommodating both vertical hinges: main and additional. Additional hinge axle is rigidly coupled with main hinge axle and with wheel axle. Horizontal hinge has axle located in lengthwise-vertical plane and coupled, on one side, with main vertical hinge and with coupler on opposite side. Wheel axle is shifted relative to axle of additional vertical hinge towards coupler. Draw lever free end is secured on casing so that its lengthwise axis and support surface form angle a to be adjusted depending upon tractive effort. Lever attachment point on casing is located above that on coupler. In compliance with second version, couple incorporates self-aligning support wheel, additional vertical hinge and casing accommodating both vertical hinges. main and additional. Additional hinge axle is aligned with than of the main vertical axle, while wheel axle is coupled with said common axle of vertical hinges. Horizontal hinge has axle located in lengthwise-vertical plane and coupled, on one side, with main vertical hinge and with coupler on opposite side. Wheel axle is shifted relative to axle of additional vertical hinge towards coupler.

EFFECT: expanded operating performances.

6 cl, 2 dwg