Zeroing adjustment for depth control system
First Claim
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1. An agricultural seed planting implement, comprising:
- a ground penetrating assembly including an opening disc;
a depth control assembly including at least one gauge wheel and one gauge wheel arm and a depth setting linkage assembly includinga depth control linkage arm associated with said ground penetrating assembly, and having adjustable positions for changing a depth to which the ground penetrating assembly can operate; and
a movably adjustable control assembly which provides depth adjustment settings for the depth control linkage arm, wherein the control assembly is configured to lock the depth control linkage arm into a selected position which prevents axial movement of the arm,wherein said depth control linkage arm is selectively variable in length, and the depth control linkage arm comprises one end including a first end portion which overlaps at least a portion of a second end portion for axial adjustment of the arm, such that the arm is adjustably positioned in a selected length and the first end portion and the second end portion are locked together into the selected length via a lock mechanism which adjustably couples the first end portion to the second end portion, wherein the lock mechanism substantially prevents axial movement of the one end of the arm.
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Abstract
A zeroing adjustment for a depth control system of an agricultural seed planting implement has an adjustable link to compensate for the variable effects of tolerance stack-up and wear, so that all planting units of the implement can be adjusted to a common zero ground penetration setting from which depth settings can be made.
37 Citations
8 Claims
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1. An agricultural seed planting implement, comprising:
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a ground penetrating assembly including an opening disc; a depth control assembly including at least one gauge wheel and one gauge wheel arm and a depth setting linkage assembly including a depth control linkage arm associated with said ground penetrating assembly, and having adjustable positions for changing a depth to which the ground penetrating assembly can operate; and a movably adjustable control assembly which provides depth adjustment settings for the depth control linkage arm, wherein the control assembly is configured to lock the depth control linkage arm into a selected position which prevents axial movement of the arm, wherein said depth control linkage arm is selectively variable in length, and the depth control linkage arm comprises one end including a first end portion which overlaps at least a portion of a second end portion for axial adjustment of the arm, such that the arm is adjustably positioned in a selected length and the first end portion and the second end portion are locked together into the selected length via a lock mechanism which adjustably couples the first end portion to the second end portion, wherein the lock mechanism substantially prevents axial movement of the one end of the arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification