Universally-positionable bilaterally-symmetrical three-cylinder-operated hitch

Abstract

A hitch element is fixed to the end of the piston rod of a horizontally disposed double-acting hydraulic cylinder. The closed end of the cylinder is swivelly connected to the bight portion of a horizontally disposed rearwardly open A-shaped frame underlying and fixed to the rear part of a truck chassis. An upright downwardly-open omega-shaped frame is rigidly connected at its ends to the ends of the A-shaped frame. A pair of upright double-acting cylinders have their closed ends swivelly connected to opposite upper corners of the upright frame, and have their piston rods connected, by X-connected bearing sleeves, to the piston rod of the horizontally disposed cylinder. A yoke prevents movement of the bearing sleeves away from the end of the horizontal cylinder. The upright cylinders co-operate to vary both vertical and lateral positioning of the hitch element.

Dependencies are inferred from the claim text.