Kit for converting a rotary tiller into a plow

• US 4,286,671 A
• Filed: 05/10/1979
• Issued: 09/01/1981
• Est. Priority Date: 05/10/1979
• Status: Expired due to Term

• Current Assignee: James A. Mays
• Original Assignee: James A. Mays
• Inventors: Mays, James A.
• Primary Examiner(s): Stouffer, Richard T.
• Application Number:
  US06/037,884
• Time in Patent Office: 845 Days
• Field of Search: 172/1, 172/42, 172/43, 172/253, 172/256, 172/259, 172/260, 172/395, 172/429, 172/258, 172/272, 172/273, 172/274, 180/19 R, 180/19 S, 180/19 H, 280/43
• US Class Current: 172/253
• CPC Class Codes: A01B 3/58 with two wheels
• CPC Class Codes: B62D 51/04 the driver walking

Abstract

A rotary tiller plow attachment kit for converting into a plow a rotary tiller of the type having a frame, a pair of handle bars extending rearwardly therefrom, and a horizontal power driven axle on which a pair of cleated pull wheels may be mounted. The kit comprises a plow attachment assembly detachably mountable on the front portion of the rotary tiller frame, and a height adjusting control mounted on one of the handle bars of the rotary tiller for selectively adjusting the height of the plow attachment. Since the height adjusting control is located on the handle bars, the height of the plow attachment assembly may be conveniently adjusted by the user while the pull wheels are in operation.

Claims

1. A rotary tiller plow attachment for converting into a plow a rotary tiller of the type having a frame, at least one handle bar means extending rearwardly therefrom, and a power driven axle for turning a set of tines, comprising:

(a) a pair of pull wheels detachably mountable onto said power driven axle;

(b) a plow attachment assembly detachably mountable onto the front portion of said frame of said rotary tiller, and

(c) a height adjusting means for continuously adjusting the height of said plow attachment assembly while said power driven axle turns said pair of pull wheels, including;

(i) a height adjustment control mountable onto one of said handle bar means of said rotary tiller, and

(ii) a detachably connectable control cable for connecting said height adjustment control to said plow attachment assembly.

2. The rotary tiller plow attachment of claim 1 wherein said plow attachment assembly is detachably mountable onto the front portion of said frame of said rotary tiller by means including:

(a) at least one elongated element on said plow attachment assembly; and

(b) a plate mounted on said tiller frame having a bore for receiving said elongated element.

3. A rotary tiller plow attachment for converting into a plow a rotary tiller of the type having a frame, a pair of handle bars extending rearwardly therefrom, and a power driven axle for turning a set of tines, comprising:

(a) a pair of pull wheels detachably mountable onto said power driven axle;

(b) a plow attachment assembly;

(c) means for detachably mounting said plow attachment assembly onto the front portion of said tiller frame;

(d) a height adjusting means for continuously adjusting the height of said plow attachment assembly while said power driven axle turns said set of pull wheels including;

(i) a control cable connected to said plow attachment assembly;

(ii) a height adjustment control mounted onto one of said handle bars of said rotary tiller for continuously extending and retracting said control cable connected to said plow attachment assembly while said power driven axle turns said pair of pull wheels, and

(iii) a cable means for detachably connecting said cable to said height adjustment control.

4. The rotary tiller plow attachment of claim 3 wherein said means for detachably mounting said plow attachment assembly includes at least one elongated element on said plow attachment assembly, and a plate mounted on said tiller frame having a bore for receiving said elongated element.

5. The rotary tiller plow attachment of claim 3 wherein said plow attachment assembly includes a height adjustable suspension assembly, and said control cable is connected to said height adjustable suspension assembly.

6. The rotary tiller plow attachment of claim 5 wherein said height adjustable suspension assembly includes:

(a) a guide wheel arm having;

(i) a first end including means for connecting said control cable thereon, and

(ii) a second end including a ground engaging guide wheel;

(b) a pivot connection located on said guide wheel arm between said control cable connection means and said guide wheel, and

(c) a biasing means for pivoting said guide wheel arm around said pivot connection when said control cable is extended,

whereby said control cable may be extended or retracted to pivot said guide wheel arm about said pivot connection in first and second angular directions, respectively, thereby adjusting the height of said plow attachment.

7. The rotary tiller plow attachment of claim 6 wherein said height adjustment control includes a crank means mountable onto one of said handle bars of said tiller.

8. The rotary tiller plow attachment of claim 7 wherein said crank means includes a leadscrew for extending and retracting said control cable.