Press for cultivator shank

• US 4,646,553 A
• Filed: 04/22/1985
• Issued: 03/03/1987
• Est. Priority Date: 04/22/1985
• Status: Expired due to Fees

• Current Assignee: Jerold W. Tufte, Leander O. Walen
• Original Assignee: Jerold W. Tufte, Leander O. Walen
• Inventors: Walen, Leander O., Tufte, Jerold W.
• Primary Examiner(s): Larson, Lowell A.
• Assistant Examiner(s): Jones, David B.
• Application Number:
  US06/725,377
• Time in Patent Office: 680 Days
• Field of Search: 72/380, 72/386, 72/389, 29/402.05, 29/402.19, 29/148.3
• US Class Current: 72/389.6
• CPC Class Codes: B21D 7/06 in press brakes or between rams and anvils or abutments; Pliers with forming dies
• CPC Class Codes: Y10T 29/49448 Agricultural device making
• CPC Class Codes: Y10T 29/49725 by shaping

Abstract

The invention comprises a hydraulic press for attachment to one of a plurality of shanks of an earth working implement. The press has a lateral base with a pair of spaced notches which form channels for the shank to be positioned in when the press is attached to the shank. A hydraulic cylinder has one end pivotally mounted to the frame of the press and its other end hydraulically actuates a piston which upon actuation telescopes the piston toward the shank intermediately between the spaced notches to engage the shank between the spaced notches, with the notches restraining outer portions of the shank against movement with the piston as it moves, while the piston moves against the intermediate portion and moves the intermediate portion thereby bending the shank. The press has a configuration to fit between the shanks of the implement when attached to the implement and said piston is adjustable on the frame so that when the press is attached to the shank the shank may remain mounted to the implement and an earth working tool may remain mounted to the shank while bending the shank at various locations along its length.

Claims

1. A press for a cultivator shank of a cultivator with one end of the shank mounted to a cultivator frame and the other end having an earthworking tool mounted thereon, said press comprising a frame, a fluid actuated piston and cylinder, said frame having a pivotal mounting at one portion of the frame for pivotally mounting one end of the piston and cylinder thereto, said frame having a pair of spaced notches spaced laterally from one another and spaced longitudinally from the pivotal mounting, said fluid actuated cylinder being actuatable to telescopically move said piston relative to said cylinder to move the other end of the piston and cylinder toward the notches along a path intermediate between the notches whereby the notches may receive and hold a portion of the shank and the other end of the piston and cylinder may engage said portion of the shank at a location intermediate between the notches to bend the shank for restoring the curvature in said shank, guideway means having one portion mounted to said frame and the other portion movably mounted in relation to the other end of said piston and cylinder to guide the other end of said piston and cylinder so that the movement of the other end of the piston and cylinder is maintained along a defined path longitudinally toward the location between the notches, adjustment means to adjust the guideway means laterally toward one or the other of said notches to laterally adjust the path of the other end of the piston and cylinder to a path that is nearer one or the other of said notches.

2. A press according to claim 1 wherein said movable mounting of said guideway means comprises a pivotal mounting.

3. A press according to claim 2 wherein one end of said piston telescopes out an end of said cylinder, and the other end of said piston is said other end of said piston and cylinder for said pivotal mounting to said guideway means and the other end of the cylinder is said one end of said piston and cylinder for pivotal mounting to said frame.

4. A press for a cultivator shank of a cultivator with one end of the shank mounted to a cultivator frame and the other end having an earthworking tool mounted thereon, said press comprising a frame, a fluid actuated piston and cylinder, said frame having a pivotal mounting at one portion of the frame for pivotally mounting one end of the piston and cylinder thereto, said frame having a pair of spaced notches spaced laterally from one another and spaced longitudinally from the pivotal mounting, said fluid actuated cylinder being actuatable to telescopically move said piston relative to said cylinder to move the other end of the piston and cylinder toward the notches along a longitudinal path intermediate between the notches whereby the notches may receive and hold a portion of the shank and the other end of the piston and cylinder may engage said portion of the shank at a location intermediate between the notches to bend the shank for restoring the curvature in said shank, guideway means comprising a lever having one end pivotally mounted to said frame and the other end pivotally mounted to the other end of the piston and cylinder to guide the other end of the piston and cylinder so that the movement of the other end of the piston and cylinder is maintained along a defined path longitudinally toward the location between the notches, adjustment means to adjust the guideway means at its one portion laterally toward one or the other of the notches laterally adjust the path of the other end of the piston and cylinder to a path that is nearer one or the other of said notches.