Seed furrow closing and covering disk
First Claim
1. A seed covering disk comprising a circular plate portion, a flange on an outer peripheral portion of the circular plate portion that is integral with the plate portion and extends to one side of the plate portion at an angle that is between 32°
- and 72°
from a plane including a large circular surface of the circular plate portion, and an axis of rotation that is perpendicular to said plane and passes through a center portion of the circular plate portion, a spindle is secured to a covering disc shank and holds the portion of the flange, that is in a vertical plane through the axis of the spindle and below the spindle, substantially horizontal, and wherein the spindle is adjustably secured to the covering disk shank for adjustment about a generally vertical axis relative to the covering disk shank.
1 Assignment
0 Petitions
Accused Products
Abstract
The planer row unit has a unit frame with a front member that is adapted to be secured to a tool bar. A sub frame is secured to the front member by parallel links. A furrow opener disk, a seed shoe and a gauge wheel are secured to the subframe.
A cam plate supported by a spring to the rear of the seed shoe presses seeds into moist soil in the bottom of a seed furrow. A seed covering disc is supported by a covering disc shank to the rear and to one side of the furrow opener. The covering disc has a circular plate portion that faces downwardly and forwardly, moves loose soil from the furrow opener into the seed furrow and rotates about a central axis that extends downwardly from a horizontal plane. A flange, with notches extends radially outward and rearwardly from the outer periphery of the circular plate portion, rolls and slides along the surface and limits soil penetration by the covering disk.
69 Citations
18 Claims
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1. A seed covering disk comprising a circular plate portion, a flange on an outer peripheral portion of the circular plate portion that is integral with the plate portion and extends to one side of the plate portion at an angle that is between 32°
- and 72°
from a plane including a large circular surface of the circular plate portion, and an axis of rotation that is perpendicular to said plane and passes through a center portion of the circular plate portion, a spindle is secured to a covering disc shank and holds the portion of the flange, that is in a vertical plane through the axis of the spindle and below the spindle, substantially horizontal, and wherein the spindle is adjustably secured to the covering disk shank for adjustment about a generally vertical axis relative to the covering disk shank. - View Dependent Claims (2, 3, 4)
- and 72°
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5. A seed planter row unit comprising:
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a row unit frame including a front member adapted to be connected to a tool bar, a rear subframe, and at least two parallel links pivotally attached to the front member and the rear subframe; a furrow opener connected to the rear subframe; a covering disk shank secured to the subframe; a spindle secured to the covering disc shank;
a seed covering disc journaled on the spindle for rotation about a covering disc axis that extends downwardly at an angle from a horizontal plane, and having a circular plate portion with an earth moving surface that is perpendicular to the covering disk axis, faces downwardly, forwardly, and to one side toward a furrow formed by the furrow opener and a flange on an outer peripheral portion of the circular plate portion that extends to a side of the circular plate portion opposite the earth moving surface and contacts a surface of a field. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A seed planter row unit comprising:
- a unit frame;
a furrow opener secured to the unit frame;
a seed shoe attached to the unit frame and extending into a furrow formed by the furrow opener;
a cam plate spring attached to the unit frame; and
a cam plate non-rotatably fixed to and supported by the cam plate spring behind the seed shoe, and wherein the cam plate is operable to press seeds into moist soil in the furrow.
- a unit frame;
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15. A method of covering seed in a seed furrow with soil using a seed covering disk with a circular plate portion having a central transverse axis, a flange integral with an outer periphery of the circular plate portion and extending radially outward from the circular plate portion and axially from one side of the circular plate portion, a plurality of notches in the integral flange and a spindle rotatably supporting the seed covering disc comprising:
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supporting the spindle with the integral flange in contact with a surface of the soil and generally horizontal along a line of contact between the integral flange and the surface of the soil; orienting the spindle so that the circular plate portion has a surface that faces generally downward and toward the seed furrow and the integral flange extends away from the surface of the circular plate portion that faces toward the seed furrow; rotating the seed covering disk as the seed covering disk moves along a path parallel to the seed furrow and to one side of the seed furrow; engaging loose soil from the seed furrow with the surface of the circular plate portion of the seed coving disk that faces toward the seed furrow to deflect the loose soil into the seed furrow; and adjusting the position of the spindle about a vertical axis to control the depth of the loose soil above seeds in the seed furrow. - View Dependent Claims (16, 17)
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18. A seed planter row unit comprising:
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a row unit frame including a front member adapted to be connected to a tool bar, a rear subframe, and parallel links pivotally attached to the front member and the rear subframe; a furrow opener connected to the rear subframe; a covering disk shank secured to the subframe; a seed covering disc journaled on the spindle for rotation about a covering disc axis that extends downwardly at an angle from a horizontal plane, and having a circular plate portion and a flange on an outer peripheral portion of the circular plate portion that extends to one side of the circular plate portion and contacts a surface of a field; wherein the spindle is adjustably secured to the covering disk shank and is movable to a plurality of positions about a generally vertical axis relative to the covering disk shank.
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Specification