Rotary hoe

• US 5,419,402 A
• Filed: 06/07/1993
• Issued: 05/30/1995
• Est. Priority Date: 06/07/1993
• Status: Expired due to Fees

• Current Assignee: Rick Heintzman
• Original Assignee: Rick Heintzman
• Inventors: Heintzman, Rick
• Primary Examiner(s): Taylor, Dennis L.
• Assistant Examiner(s): Novosad, Christopher J.
• Application Number:
  US08/072,920
• Time in Patent Office: 722 Days
• Field of Search: 172/547, 172/546, 172/540, 172/609, 172/607, 172/606, 172/573, 172/572, 172/551, 172/627, 172/643, 172/520, 172/569, 172/624
• US Class Current: 172/551
• CPC Class Codes: A01B 21/04 on horizontally-arranged axles
• CPC Class Codes: A01B 25/00 Harrows with special additional arrangements, e.g. means for distributing fertilisers; Harrows for special purposes A01B39/00 takes precedence ; fertiliser distributors A01C15/00

Abstract

A no-till rotary hoe includes trash cutters for cutting field trash carried by the earthworking implements. The rotary hoe also has a walking beam mounted on a support arm with rotary hoe wheels mounted on forward and rear ends of the walking beam. The walking beam is connected to the arm about a pivot positioned to reduce the tendency of the walking beam to pivot excessively in use. A spring is used to aid in maintaining the walking beam properly oriented.

Claims

1. An apparatus comprising:

a plurality of support means adapted for attachment to a tool bar for supporting earth working implements wherein there is at least one earthworking implement mounted on each support means, said implements being arranged into at least one row; and

a cutter mounted on at least selected ones of the support means adjacent an implement supported on an adjacent support means for cutting trash caught in the implement of the adjacent support means as trash carried by the implement is moved across the cutter.

2. The apparatus as in claim 1 wherein the support means comprises a walking beam and a support arm wherein the walking beam is pivotally mounted to the support arm and the support arm is attached to the tool bar.

3. The apparatus as in claim 2 wherein the earthworking implements are rotatably mounted to the walking beams.

4. The apparatus as in claim 2 wherein the walking beam is pivotally mounted to the support beam at a pivot point closer to a front end of the walking beam than to a rear end of the walking beam.

5. The apparatus as in claim 4 wherein the cutter is mounted to a top portion of the walking beam to the rear of the pivot point of the walking beam to the support arm.

6. The apparatus as in claim 2 wherein the walking beam has a stop attached to its top side for stopping the walking beam from pivoting past a predetermined point.

7. The apparatus as in claim 1 wherein the cutter comprises a plurality of blades having sharpened edges mounted to the support means.

8. The apparatus as in claim 7 wherein the support means comprises a support arm and a plurality of clamps to clamp the cutter onto a support arm.

9. The apparatus as in claim 8 wherein the cutter comprises a mounting bar supporting the blades having a first leg connected to the support arm of at least one row, and having a bend forming a second leg above and facing the support arm that the mounting bar is mounted to, the blades being supported on the second leg and extending toward the first leg.

10. An improvement for rotating earthworking implements carried by a tool bar and arranged into rows having a first row in advance of a second row, support means for rotatably supporting at least one implement for working, an elongated axle between each implement and a corresponding support means, each elongated axle laterally spacing the implements in the first row nearer an adjacent support means for the first row than its corresponding support means for the first row and laterally spacing each implement in the second row nearer an adjacent support means for the second row than its corresponding support means for the second row, the support means comprising a walking beam and a support arm wherein the walking beam is pivotally mounted to an end of the support arm and another end of the support arm is attached to the tool bar.

11. The apparatus as in claim 10 wherein the earthworking implements are extendedly mounted from the walking beams.

12. The improvement as in claim 10 wherein the walking beam is pivotally mounted to the support arm closer to a front end of the walking beam than to a rear end of the walking beam and spring means connected to the walking beam tending to urge the front end of the walking beam upwardly.

13. The improvement as in claim 10 further including a maintaining means connected between a front end of the walking beam and the tool bar for maintaining the walking beam substantially parallel to the ground.

14. The improvement as in claim 10 and stop means attached to the walking beam for stopping the walking beam from pivoting past a predetermined point relative to the support arm in a direction raising a forward end of the walking beam.

15. The improvement as in claim 10 further including a cutter mounted to the support means for engaging and cutting trash carried across the cutting means as the rotating earthworking implements rotate.

16. The improvement as in claim 10 further including cutting means mounted to a rear portion of the walking beam wherein the cutting means comprises a plurality of blades mounted to provide an inclined cutting edge mounted to a bracket for mounting the blades to the support means.

17. An improvement for rotating earthworking implements carried by a tool bar and arranged into rows having a first row in advance of a second row, support means for rotatably supporting a pair of rotary earthworking implements for working soil, wherein the support means comprises a support arm pivotally mounted to the tool bar at one end and a walking beam is pivotally mounted to a second end of the support arm about a pivot, the pivot between the walking beam and the support arm being forwardly of the mid-point between the axes of mounting of the earthworking implements, and means biasing the walking beam relative to the support arm to tend to pivot the forward end of the walking beam upwardly.

18. The improvement of claim 17 and a trash cutter comprising at least one sharpened blade mounted on the top portion of the walking beam for cutting trash carried across the cutter by an earth worker implement.

19. An apparatus comprising a plurality of support arms adapted for attachment to a tool bar, at least one rotating earthworking implement mounted on each support arm, said implements being arranged into at least one row, a sharpened cutting blade mounted on at least selected ones of the support arms adjacent an implement supported on an adjacent support arm for cutting trash caught in an implement as trash carried by the implement is moved across the cutting blade on an adjacent support arm.

20. The apparatus as in claim 19 wherein the cutting blades are upwardly facing blades mounted forwardly of the axis of rotation of the adjacent implement.