Zeroing adjustment for depth control system
First Claim
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1. An agricultural seed planting implement, comprising:
- a ground penetrating assembly;
an adjustable gauge wheel supporting said ground penetrating assembly at controlled penetration depths;
a depth control linkage arm adjustably positioning said gauge wheel, said depth control linkage arm including first and second portions telescopically engaged with each other to provide a selectively variable length;
a threaded fastener adjustably coupling said first and second portions of said depth control linkage arm, said threaded fastener being configured to adjust a relative axial position between said first and second portions; and
a locking mechanism removably coupled to said depth control linkage arm, said locking mechanism being configured to the prevent rotation of said threaded fastener relative to said depth control linkage 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.
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Citations
7 Claims
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1. An agricultural seed planting implement, comprising:
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a ground penetrating assembly; an adjustable gauge wheel supporting said ground penetrating assembly at controlled penetration depths; a depth control linkage arm adjustably positioning said gauge wheel, said depth control linkage arm including first and second portions telescopically engaged with each other to provide a selectively variable length; a threaded fastener adjustably coupling said first and second portions of said depth control linkage arm, said threaded fastener being configured to adjust a relative axial position between said first and second portions; and a locking mechanism removably coupled to said depth control linkage arm, said locking mechanism being configured to the prevent rotation of said threaded fastener relative to said depth control linkage arm. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification