Spreader/grader with adjustable transverse blades
First Claim
1. A spreader/grader for attachment to a three point hitch of a tractor for various earth working functions and comprising:
- a rigid frame, means on said frame for connection with a three point hitch of a tractor, and means on said frame for engaging a soil surface and performing earth working functions, said frame comprising a pair of rigid side frame members, a plurality of torque bars rigidly interconnecting said side frame members and maintaining the side frame members in rigid, spaced parallel relation for movement along a ground surface when in a lowered position and elevated above the ground surface when in an elevated position, said means engaging a soil surface comprising at least one blade assembly extending transversely between said side frame members, said blade assembly having two ends and including an elongated blade support having a downwardly and forwardly inclined flange and an earth working blade attached to said flange, each said end of said blade assembly including a bracket longitudinally telescopic in relation to the blade support and at least one mounting bolt securing each of said brackets to said blade and to said blade support, each bracket including a plurality of apertures capable of receiving said at least one mounting bolt and thereby providing length adjustment to said blade support assembly, said spreader/grader further comprising means for connecting the brackets to the side frame members, said means for connecting the brackets including means permitting independent adjustment of each end of the blade assembly forwardly and rearwardly in relation to the other end of the blade assembly.
0 Assignments
0 Petitions
Accused Products
Abstract
A spreader/grader attachable to a three point hitch of a tractor and including a pair of longitudinally extending, parallel, transversely spaced side pans or frame members oriented in fixed relation to each other and operatively connected to a three point hitch. Extending between the side pans or frame members is a plurality of transverse blades for engaging a soil surface in order to perform various earth working functions. The blades include a support structure and attachment arrangement at each end thereof for connection with the side pans or frame members to enable the blades to be oriented in a fixed or varied relation to the frame members or adjustable in relation to the frame members to orient either end of a blade forwardly or rearwardly in relation to the other end and either end of the blade upwardly or downwardly in relation to the other end and to vary the angle of a blade about a longitudinal axis with respect to a horizontal plane to vary the angle of attack of the blade in relation to the soil surface in order to provide effective grading, spreading and other earth working functions.
-
Citations
11 Claims
-
1. A spreader/grader for attachment to a three point hitch of a tractor for various earth working functions and comprising:
a rigid frame, means on said frame for connection with a three point hitch of a tractor, and means on said frame for engaging a soil surface and performing earth working functions, said frame comprising a pair of rigid side frame members, a plurality of torque bars rigidly interconnecting said side frame members and maintaining the side frame members in rigid, spaced parallel relation for movement along a ground surface when in a lowered position and elevated above the ground surface when in an elevated position, said means engaging a soil surface comprising at least one blade assembly extending transversely between said side frame members, said blade assembly having two ends and including an elongated blade support having a downwardly and forwardly inclined flange and an earth working blade attached to said flange, each said end of said blade assembly including a bracket longitudinally telescopic in relation to the blade support and at least one mounting bolt securing each of said brackets to said blade and to said blade support, each bracket including a plurality of apertures capable of receiving said at least one mounting bolt and thereby providing length adjustment to said blade support assembly, said spreader/grader further comprising means for connecting the brackets to the side frame members, said means for connecting the brackets including means permitting independent adjustment of each end of the blade assembly forwardly and rearwardly in relation to the other end of the blade assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- 9. An earth working implement comprising a frame, means on said frame for connection with a vehicle, and means on said frame for engaging a soil surface and performing earth working functions, said frame comprising a pair of rigid side frame members, means rigidly interconnecting said side frame members and maintaining them in rigid, spaced parallel relation for movement along a ground surface when in a lowered position and elevated above the ground surface when in an elevated position, said means engaging a soil surface comprising at least one blade assembly extending transversely between said side frame members, said blade assembly having two ends and including an elongated blade support, an earth working blade attached to said blade support, each end of said blade assembly including a bracket extending outwardly from the blade supporting, first fastening means detachably securing the blade support and brackets and second fastening means detachably securing the brackets to said side frame members, each said second fastening means enabling variation in the angular relation of the blade about a transverse, generally horizontal axis and enabling adjustment of each end of the blade vertically, and said first fastening means and said second fastening means cooperating with one another to provide independent adjustability of each end of the blade assembly forwardly and rearwardly.
Specification