US 4,304,305 AGranted

Frame for mounting tilt and angled dozer blade to tractors

AssigneeWaldon, Inc.

InventorWalter A. Bartel

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Abstract

A detachable moldboard dozer blade assembly for tractors having a push frame pivotally attached at a rear end thereof to the underchassis of a tractor. A frame structure is attached to the forward end of the push and provides for a vertical pivotal axis for the attachment of the dozer blade assembly. An attachment plate is pivotally connected transversely to the frame structure for blade movement in a horizontal plane and shim and plate means retain the attachment of the dozer blade assembly. An attachment plate is pivotally connected transversely to the frame structure for blade movement in a horizontal plane and shim and plate means retain the attachment plate to the dozer blade to permit vertical or tilt movement of the dozer blade relative to the attachment plate. Hydraulic piston means extend from the push frame to the attachment plate and from the attachment plate to the dozer blade to move the dozer blade about a vertical and horizontal plane.

Claims1

Dependent claims

A forward mountable dozer blade for a 4-wheel drive tractor comprising:

a push frame located beneath the tractor, said push frame having at its forward end outwardly extending bearing sleeves transverse to said push frame and located between the front and back wheels on each side of said tractor, means on said push frame to attach one end of a hydraulic piston or cylinder;
a lift frame assembly comprising parallel side members each of which, in a side view, are inverted U-shaped with a bight portion connecting a forward and rearward leg so as to extend up and over the front wheels or axle of said tractor, the rearward legs of each said side member including a clampable collar for pivotal attachment to the corresponding bearing sleeve of said push frame and means on at least one of said rearward legs to attach the other end of said hydraulic piston or cylinder, to pivot said lift frame up and down, said lift frame assembly having means at its forward end to attach a material handling device such as a dozer blade, said lift frame further including at the bottom of each of said forward legs a vertically adjustable lift stand, said stand positionable on the ground behind said dozer blade so as to create a fulcrum point when said lift frame assembly rests upon the ground such that said clampable collar will clear said front wheels of said tractor when driven into position to connect said left frame assembly.

Dependencies are inferred from the claim text.