FOLDING FLEXIBLE UNDERCUTTER PLOW

摘要

FOLDING FLEXIBLE UNDERCUTTER PLOW Apparatus is disclosed for folding an articulated agricultural implement such as a multisection plow in order to facilitate movement of the implement from field to field along available roadways. Stability in the folded condition and minimization of the number of hydraulic cylinders required are achieved through the use of a gravity operated lock arrangement associated with adjacent sections of the foldable wing frame units of the implement. The number of locks and hydraulic cylinders depends upon the total number of hinged sections used to form the base and wing units of the frame assembly. The inboard hydraulic cylinders are pivotally connected to respective draft beams on the base unit and each acts directly between such beam and the associated wing unit. The arms of the hitch are connected to the forward ends of the draft beams, and the arrangement is such that the overturning moment created during folding of a wing unit is opposed by a sufficient equal and opposite force to maintain equilibrium and prevent arching or buckling of the flexible frame sections. The hitch arms converge at a special nose provided with a tongue connector that is continuously adjustable over a wide elevational range to accommodate various tractor drawbar heights. Each gang of a multiple gang treader behind the plow runs askew and is provided with a gang check to limit forward swinging movement and thereby prevent the treader wheels of adjacent gangs from engaging each other and damaging the wheels when terrain irregularities are encountered.