PRECISION HOE OPENER WITH SWING LINK AND BIASING MEMBER
First Claim
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1. An agricultural system comprising:
- a support structure;
an ground engaging assembly extending from the support structure;
a lost motion linkage cooperatively contacting the support structure to raise the ground engaging assembly after movement of the lost motion linkage through a desired angular range; and
a biasing member coupled to the ground engaging assembly and to the lost motion linkage for urging raising of the ground engaging assembly before the lost motion linkage moves through the desired angular range.
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Abstract
A precision hoe opener assembly is provided with improved accuracy of seeding as well as improved control over the opener and packer wheel assemblies. The opener assembly includes a hydraulically-driven parallel linkage assembly, a lost motion linkage, a biasing member, a ground engaging tool, and a packer wheel. The design provides improved seeding accuracy, by compensating for changes in draft force caused by changes in terrain elevation.
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Citations
22 Claims
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1. An agricultural system comprising:
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a support structure; an ground engaging assembly extending from the support structure; a lost motion linkage cooperatively contacting the support structure to raise the ground engaging assembly after movement of the lost motion linkage through a desired angular range; and a biasing member coupled to the ground engaging assembly and to the lost motion linkage for urging raising of the ground engaging assembly before the lost motion linkage moves through the desired angular range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of manufacturing an agricultural seeder system, the method comprising:
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mounting a ground engaging assembly to extend from a support structure; mounting a lost motion linkage on the support structure, the lost motion linkage being configured to cooperatively contact the support structure to raise the ground engaging assembly after movement of the lost motion linkage through a desired angular range; and coupling a biasing member to the ground engaging assembly and to the lost motion linkage for urging raising of the ground engaging assembly before the lost motion linkage moves through the desired angular range. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An opener and seeder system, comprising:
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means for disposing a seed in ground to be seeded; means for pivotally supporting the seed disposing means with respect to a seeder tow bar; means for raising the seed disposing means by contact with the pivotally supporting means, the raising means being displaceable through a predetermined angular range prior to contacting the pivotally supporting means; and means for urging raising of the seed disposing means before the pivotally supporting means moves through a desired angular range. - View Dependent Claims (19, 20, 21, 22)
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Specification