Rod weeder attachment for an agricultural implement
OwnerDuane C. Haukaasinventor
Life of this patent
Estimating the term…
Abstract
A rod weeder attachment for the tool bar of an agricultural implement comprises an arm portion extending rearwardly from a clamp on the tool bar defined by a pair of spaced parallel bars extending rearwardly to a transverse strut. From the strut to the ground is provided a rear arm portion the angle of which can be adjusted relative to the front arm portion. The rear arm portion carries on the lower end a ground wheel for running on the ground and providing drive therefrom. A pair of shanks at opposed ends of the strut extend down to the ground and carry at their lower ends a rod which is driven by a chain mechanism from the ground wheel. Springs allow the arm to lift relative to the tool bar.
Claims20
A tillage attachment device for mounting on an agricultural implement of the type comprising a tool bar, ground wheels for supporting the tool bar for movement across the ground and means for causing the tool bar to move in a direction transverse to its length, the device comprising clamp means for attachment of the device to the tool bar, rigid pivot arm means mounted on said clamp means so as to extend rearwardly therefrom and so as to be pivotal about a horizontal axis at right angles to said arm means, spring biasing means connected between said clamp means and said pivot arm means for biasing said arm means downwardly around said axis, a ground engaging wheel mounted on said arm means remote from said clamp means for running on the ground rearwardly of and following said tool bar, said ground wheel being of a type such that its engagement with the ground controls the height of said arm means from the ground, strut means rigidly mounted upon and extending transversely to said arm means, two vertical ground engaging rigid shank means each rigidly mounted on said strut means at horizontally spaced locations and extending downwardly therefrom for engagement with the ground, a rod extending between said shank means at respective lower ends thereof, bearing means mounting said rod on each of said shank means for rotation relative thereto about a longitudinal axis of said rod and drive means for communicating drive from said ground wheel to said rod for rotating said rod.
An agricultural implement of the type comprising a tool bar, ground wheels for supporting the tool bar for movement across the ground and means for causing the tool bar to move in a direction transverse to its length, and an attachment device comprising clamp means for attachment of the device to the tool bar, rigid pivot arm means mounted on said clamp means so as to extend rearwardly therefrom and so as to be pivotal about a horizontal axis at right angles to said arm means, spring biasing means connected between said clamp means and said pivot arm means for biasing said arm means downwardly around said axis, a ground engaging wheel mounted on said arm means remote from said clamp means for running on the ground rearwardly of and following said tool bar, said ground wheel being of a type such that its engagement with the ground controls the height of said arm means from the ground, strut means rigidly mounted upon and extending transversely to said arm means, two vertical ground engaging rigid shank means each rigidly mounted on said strut means at horizontally spaced locations and extending downwardly therefrom for engagement with the ground, a rod extending between said shank means at respective lower ends thereof, bearing means mounting said rod on each of said shank means for rotation relative thereto about a longitudinal axis of said rod and drive means for communicating drive from said ground wheel to said rod for rotating said rod.
Dependencies are inferred from the claim text.