Agronomic implement
First Claim
1. A cultivating implement comprising:
- a frame mounted for movement in a direction of travel; and
at least one soil working tool mounted on said frame, said tool including a blade having a portion with a leading and trailing edge, which portion, in operation, extends sidewardly and downwardly into the soil in a plane substantially parallel to the direction of travel edgewise through the soil and inclined at an acute angle to the vertical so as to lift soil, without inversion, lying above the blade;
said tool having at a lower end of said inclined blade portion a shoe member with an upwardly and rearwardly inclined upper surface at a leading end thereof, and a trailing edge thereof, and an upright and rearwardly extending side surface, said side surface being substantially parallel to the direction of travel and comprising bearing surface means for resisting lateral forces on the tool due to the lifting action of the blade on the soil.
1 Assignment
0 Petitions
Accused Products
Abstract
A cultivating implement include a soil working tool having an elongate substantially planar blade. The blade extends sidewardly and downwardly at an acute angle to the vertical so that its plane is substantially parallel to the direction of movement through the soil and so that soil is lifted without inversion over the blade during passage through the soil. A movable extension is mounted to the blade trailing edge and is adjustable between first and second rigid positions to adjust the lifting action on the soil and thus adapt it to a wide variety of soil types and moisture conditions. At the lower end of the blade is a shoe member with an upwardly and rearwardly inclined upper surface at a leading end thereof, and an upright and rearwardly extending side surface substantially parallel to the direction of travel to provide a bearing surface for resisting lateral forces on the tool due to lifting action of the blade. The shoe member imparts lateral stability and factilitates penetration.
18 Citations
29 Claims
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1. A cultivating implement comprising:
- a frame mounted for movement in a direction of travel; and
at least one soil working tool mounted on said frame, said tool including a blade having a portion with a leading and trailing edge, which portion, in operation, extends sidewardly and downwardly into the soil in a plane substantially parallel to the direction of travel edgewise through the soil and inclined at an acute angle to the vertical so as to lift soil, without inversion, lying above the blade;
said tool having at a lower end of said inclined blade portion a shoe member with an upwardly and rearwardly inclined upper surface at a leading end thereof, and a trailing edge thereof, and an upright and rearwardly extending side surface, said side surface being substantially parallel to the direction of travel and comprising bearing surface means for resisting lateral forces on the tool due to the lifting action of the blade on the soil. - View Dependent Claims (2, 3, 20, 24, 25, 26, 27, 28, 29)
- a frame mounted for movement in a direction of travel; and
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4. A cutivating implement comprising:
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at least one soil working tool having an elongate substantially planar blade with a trailing edge having a movable extension; a mounting structure movable over soil; means for connecting said blade to said mounting structure so that said blade extends sidewardly and downwardly at an acute angle to the vertical; and
so that its plane is substantially parallel to the direction of movement through the soil; and
so that soil is lifted, without inversion, over the blade during passage through the soil; andmeans for movably mounting said movable extension to said blade trailing edge so that said movable extension is adjustable between a rigid first position directly behind said trailing edge, and a rigid second position projecting upwardly from said trailing edge to increase the lifting action on soil passing over said blade. - View Dependent Claims (5, 6, 7)
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8. An implement for use in improving land porosity, comprising:
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a vehicle; a blade raising and lowering mechanism attached to said vehicle for raising and lowering a blade between positions penetrating, and out of, soil; an elongate generally planar blade comprising a leading edge and a trailing edge having a movable extension; means for mounting said blade to said blade raising and lowering mechanism so that when lowered into the soil, said blade is held with the leading edge thereof sloping forwardly and the plane of the blade sloping sideways and downwardly so as to make a diagonal soil-lifting pass in the soil and parallel to the direction of motion of said vehicle with soil lifted over the blade, without inversion and without substantial compaction of soil beneath the blade; and hinge means for movably mounting said movable extension to said blade trailing edge so that said movable extension is adjustable between a first rigid position directly behind said trailing edge, and a second rigid position projecting upwardly from said trailing edge to increase the displacement action on soil passing over said blade. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A cultivating implement comprising a frame mounted for movement in a direction of travel;
- and at least one soil working tool mounted on said frame;
said tool including a substantially planar blade having a portion which, in operation, extends downwardly into the soil in a plane substantially parallel to its direction of travel edgewise through the soil and inclined at an acute angle to the vertical so as to lift soil lying above the blade, without inversion;
said tool having an extension member, and means for mounting said extension member at a trailing edge of the inclined blade portion so that it is adjustable to lie in alignment with the plane of the blade or at a selected inclination upwardly with respect to said plane to increase the lifting action, without inversion, upon soil lying above the blade;
said tool also having at a lower end of the inclined blade portion a shoe member with an upwardly and rewardly inclined upper surface at a leading end thereof, and an upright and rearwardly extending side surface, said side surface being substantially parallel to the direction of travel and comprising bearing surface means for resisting lateral forces on the tool due to the lifting action of the blade on the soil. - View Dependent Claims (22, 23)
- and at least one soil working tool mounted on said frame;
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21. A cultivating implement according to claim 35 wherein the leading end of the inclined upper surface of the shoe member is located in advance of the leading edge of the inclined blade portion.
Specification