Plow attachment for converting a rotary tiller into a plow

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.

Having described in detail herein the specific structure and operation of my invention, I claim: 
     
       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.]. .Iadd.mountable .Iaddend.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.]. .Iadd.mountable .Iaddend.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.]. .Iadd.mountable .Iaddend.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. .Iadd. 
     
     
       9.  An improved plow attachment for converting a rotary tiller into a plow, said rotary tiller having a frame, at least one handle bar means extending rearwardly therefrom, and a power driven axle, said rotary tiller including a set of detachably mounted tines to be driven by said power driven axle, said plow attachment comprising: .Iadd.(a) a pair of pull wheels detachably mountable onto said power driven axle;   .Iadd.(b) a plow attachment assembly detachably mountable onto the front portion of said frame of said rotary tiller, said plow attachment assembly including a plow;   .Iadd.(c) a height adjusting suspension means located in front of said plow attachment assembly including a ground engaging guide wheel, said height adjusting means operative when actuated for adjusting the height of said plow attachment assembly between a raised and lowered position; and   .Iadd.(d) attachment means including at least one elongated element attached to said plow attachment assembly and extending rearwardly thereof, an L-shaped plate mountable to the frame having at least one bore for receiving said elongated element therein, and means for securing the elongated element in the bore for attaching the plow attachment assembly to the front portion of the tiller frame. .Iaddend. .Iadd.10. The improved plow attachment of claim 9, wherein said height adjusting suspension means includes an arm and a pivotal connection for pivotally connecting the arm to the front of the plow attachment assembly, and wherein said guide wheel is rotatably connected thereon; and biasing means interconnecting the arm with the plow attachment assembly for pivoting said arm around said   
     
     
        pivotal connection. .Iaddend. .Iadd.11.  The improved plow attachment of claim 10 further including actuating means coupled to the arm and extending rearwardly of the plow attachment assembly for remotely actuating the height adjusting suspension means between raised and lowered positions, said actuating means permitting the biasing means to pivot said arm around said pivotal connection when said plow attachment assembly has been adjusted to said lowered position. .Iaddend. .Iadd.12. 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 transverse axle for turning a set of tines, comprising: .Iadd.(a) a pair of pull wheels detachably mountable onto said power driven axle;   .Iadd.(b) a plow attachment assembly including a plow;   .Iadd.(c) means for detachably mounting said plow attachment assembly onto the front portion of said tiller frame including at least one elongated element attached to said plow attachment assembly and extending rearwardly thereof, and an L-shaped plate mountable to the frame having at least one bore for receiving said elongated element therein, and means for securing the elongated element in the bore for attaching the plow attachment assembly to the front portion of the tiller frame; and   .Iadd.(d) a height adjusting means mounted on the forward portion of the plow attachment assembly for adjusting the height of said plow attachment assembly between raised and lowered positions. .Iaddend.