Releasably retained hinged plow
OwnerSherman H. Quanbeckinventor
Life of this patent
Estimating the term…
Abstract
A moldboard plow that is made in two sections which are hinged together about a horizontal pivot axis, so that the rear section of the plow can pivot about this horizontal axis relative to the front section to permit the plow to follow ground contours. Such hinged plows are useful where the present day large plow assemblies are utilized. The hinge assembly also includes structure for reducing the overall width of the plow for road transport. The present hinged plow is supported at four support points controlled by hydraulic cylinders connected and controlled to insure that when the plow is lowered into the ground the shares will enter the ground at a favorable angle for penetration.
Claims9
In a hinged plow assembly including a forward frame section and a rear frame section, means to permit the forward end of the forward frame section to be connected to a prime mover for movement over the ground with the rear frame section trailing the forward frame section, hinge means connecting said forward frame section and rear frame section together and permitting hinging movement about a generally horizontal transversely extending axis as the assembly is moved, said frame sections each carrying a plurality of earth working tools, said rear frame section having rear portions which are offset from said forward frame section in transverse direction when in use, so that rear portions of the rear frame section extend beyond the side of said forward frame section on at least one side in transverse direction as the plow assembly is moved along the ground, means to pivotally connect a forward end portion of said rear frame section to a rear end portion of the forward frame section about an upright axis, and means to releasably retain said rear frame section selectively in at least two separate positions about said upright axis relative to said forward frame section, one of which is a working position and the other is a position wherein rear portions of the rear frame section are moved transversely to reduce the overall transverse width of the plow assembly from the width in working position as the plow assembly is moved along the ground.
In a hinged plow assembly including a forward section and a rear section, hinge means connecting said forward section and rear section together about a horizontal axis comprising a generally horizontal support tube on one of said sections, and a pair of spaced U-shaped saddle members on the other of said sections which engage and are supported on said tube, means to pivotally connect said rear section to the forward section about an upright axis, said upright axis being located on one of said saddle members, the other of said saddle members having generally horizontal legs and being slidable generally horizontally relative to said tube, and means to releasably retain said rear section selectively in two separate positions about said upright axis relative to said forward section, one of which is a working position and the other is a position wherein the overall lateral width of the plow assembly is reduced from the width in working position, said other saddle member comprising a portion of said means to releasably retain.
In a hinged plow assembly including a forward section and a rear section, hinge means connecting said forward section and rear section together about a generally horizontal axis, means to pivotally connect said rear section to the forward section about an upright axis, a land wheel assembly, means to mount said land wheel assembly to one of said sections adjacent said hinge means to support the plow assembly relative to the ground, said land wheel assembly comprising an arm, wheel means at one end of said arm, and means to support the other end of said arm on said one section comprising an axle tube extending across said one section and pivotally supported on said one section, said axle tube comprising a portion of said hinge means, and means to releasably retain said rear section selectively in two separate positions about said upright axis relative to said forward section, one position being a working position and the other being a position wherein the overall lateral width of the plow assembly is reduced from the width in working position.
Dependencies are inferred from the claim text.