Combination cultivator and chemical applicator
First Claim
1. A combination tillage and chemical applicator structure for an implement having a transversely extending frame member adapted for forward movement over the soil for cultivating the soil and applying a chemical beneath the surface of the soil, the structure comprising:
- a disk;
tool support structure connected to the frame member and vertically movable with respect to the frame member;
a disk support connected to the tool support structure and adjustable vertically with respect to the tool support structure, the disk support supporting the disk for rotation in the soil to cut an opening in the soil in an area around the disk;
an adjustable depth control connected to the tool support structure for maintaining the disk at a preselected operating depth;
a chemical tool connected to the disk support and supported immediately behind the disk for movement through the area and depositing a chemical in the area at a depth dependent on the preselected operating depth of the disk and the vertical adjustment of the disk support relative to the tool support structure;
wherein the chemical tool is vertically adjustable with the disk support to thereby facilitate simultaneous adjustment of the chemical tool and the disk with respect to the tool support structure; and
sealing structure supported behind the chemical tool and sealing the deposited chemical.
1 Assignment
0 Petitions
Accused Products
Abstract
A rig assembly on a combination row crop cultivator and chemical applicator includes a knife or other applicator device supported in front of the cultivator sweep and behind the disk coulter blade. The sweep helps seal the chemical in the ground in certain soil conditions to prevent chemical loss, particularly when additional closing structure is not in use. A selectively attachable, shank-mounted closing mechanism, preferably a press wheel, may be mounted directly behind the sweep to assure a good chemical seal. Disk coulter support straps have flanges that provide a conveniently accessed mount for the applicator device and present minimal interference to trash and soil flow. A simple bracket connects an arm on the closing wheel mechanism to a central portion of the sweep standard. Numerous combinations of tools and tool mounting arrangements and adjustments are facilitated by the rig construction.
43 Citations
21 Claims
-
1. A combination tillage and chemical applicator structure for an implement having a transversely extending frame member adapted for forward movement over the soil for cultivating the soil and applying a chemical beneath the surface of the soil, the structure comprising:
-
a disk; tool support structure connected to the frame member and vertically movable with respect to the frame member; a disk support connected to the tool support structure and adjustable vertically with respect to the tool support structure, the disk support supporting the disk for rotation in the soil to cut an opening in the soil in an area around the disk; an adjustable depth control connected to the tool support structure for maintaining the disk at a preselected operating depth; a chemical tool connected to the disk support and supported immediately behind the disk for movement through the area and depositing a chemical in the area at a depth dependent on the preselected operating depth of the disk and the vertical adjustment of the disk support relative to the tool support structure; wherein the chemical tool is vertically adjustable with the disk support to thereby facilitate simultaneous adjustment of the chemical tool and the disk with respect to the tool support structure; and sealing structure supported behind the chemical tool and sealing the deposited chemical. - View Dependent Claims (2, 11)
-
-
3. A combination tillage and chemical applicator structure for an implement having a transversely extending frame member adapted for forward movement over the soil for cultivating the soil and applying a chemical beneath the surface of the soil, the structure comprising:
-
a disk; tool support structure; means pivotally connecting the tool support structure to the frame member for vertical movement relative to the frame member; a vertically adjustable disk support connected to the tool support structure and supporting the disk for rotation in the soil to cut an opening in the soil in an area around the disk; a chemical tool connected to the disk support and supported immediately behind the disk for movement through the area and depositing a chemical in the area, wherein the chemical tool is vertically adjustable with the disk support to thereby facilitate simultaneous adjustment of the chemical tool and the disk; an earthworking tool supported from the frame member at a location behind the chemical tool for at least partially closing the area above the deposited chemical; and wherein the means connecting the tool support structure comprises a linkage having upper and lower fore-and-aft extending arms with forward and rearward ends, the forward ends connected to the frame and the rearward ends connected to the tool support structure; gauge wheel structure connected to the tool support structure and controlling vertical movement of the tool support structure relative to the frame to thereby provide depth control for both the chemical tool and the disk, and wherein the tool support structure comprises upright structure extending from the lower arm, and the vertically adjustable disk support structure is connected to the upright structure and is retained in substantially a constant upright position by the linkage as the gauge wheel structure provides depth control. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
-
-
12. A combination tillage and chemical applicator structure for an implement having a transversely extending frame member adapted for forward movement over the soil for cultivating the soil and applying a chemical beneath the surface of the soil, the structure comprising:
-
a fore-and-aft extending and vertically moveable linkage connected to the frame member; a vertically adjustable disk support extending downwardly from the aft end of the linkage; an adjustable depth control wheel connected to the disk support; a disk rotatably mounted on the disk support for rotation in the soil at a location offset in the fore and aft direction from the depth control wheel, wherein depth of penetration of the disk is dependent on adjustment of the depth control wheel; a chemical tool supported immediately behind the disk on the disk support for movement through and depositing of a chemical in the soil behind the disk, wherein the chemical tool is vertically adjustable with the disk support to thereby facilitate adjustment of the chemical tool and the disk together and wherein operating depth of the chemical tool is also dependent on the adjustment of the depth control wheel; a shank connected to the linkage for movement therewith, the shank having a lower tool-supporting end extending behind the chemical tool; and a sweep supported from the tool-supporting end rearwardly of the chemical tool for cultivating the soil and closing the area above the deposited chemical with cultivated soil. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification