Single angled blade coulter and fertilizer opener
AssigneeDeere & Company
InventorsTerry L. Van Natta, Donald R. Hartwig
Life of this patent
Estimating the term…
Abstract
A conservation tillage attachment for a seed planting unit that functions to cut and clear away prior crop residue, fracture the soil ahead of the seed trench opener, and form a trench for the deposit of dry or liquid fertilizer offset from and parallel to the later formed seed trench. The attachment includes a single disk blade disposed forward of the seed trench forming unit. The single disk blade is disposed at an angle of approximately 5.degree. from the line defining the direction of travel of the seed planting implement. The attachment includes a selectively adjustable down force structure and a selectively adjustable depth control mechanism.
Claims1
In an attachment for a seed planting implement of the type including a main frame adapted to be moved along the ground and having at least one seed planting unit connected to said main frame, said seed planting unit including a subframe and a seed trench forming unit attached to the subframe, the improvement comprising:
- a single disk blade disposed forward of the seed trench forming unit and mounted to the main frame independently of the subframe, said single disk blade being disposed on a support arm at an angle to the direction of travel of said implement;
- means for selectively adjusting a downwardly biasing force on said disk blade wherein said adjustable force means includes a compression spring disposed to interconnect a support attached to said main frame and said single disk blade, and a pivotable force adjustment strap pivotally attached to said support and having one end attached to said spring and having the opposite end selectively securable to said support in a plurality of position;
- and
- means for selectively adjusting the working depth of said disk blade wherein said depth adjustment means includes a gauge wheel rotatably attached adjacent to said disk blade and having a center point selectively movable with respect to the center point of said disk blade, and wherein said single disk blade is rotatably mounted on a hollow spindle attached to the support arm and said gauge wheel is rotatably attached to an offset spindle of an arm assembly having a first shaft portion received and secured within said hollow spindle.
Dependencies are inferred from the claim text.