METHOD AND APPARATUS FOR EXTENDING THE SERVICE LIFE OF AN AGRICULTURAL PLANTER

Abstract

An agricultural planter and tractor combination which has a connection therebetween which comprises a stationary support arm coupled to the tractor and a pivoting support arm coupled to the agricultural planter with a connecting threaded member extended therethrough and a rotation-limited intermediate member with two protrusions extending into voids in the pivoting support arm so that the pivoting support arm will not rotate around the connecting threaded member and the connecting threaded member further translated through a portion of a hex-headed bushing and rotationally advanced through another portion, and a terminal nut also rotationally advanced over the connecting threaded member. The rotation-limited intermediate member is made of a harder more durable material than the connecting threaded member, the stationary support arm and the pivoting support arm.

Claims

1-20. (canceled)

21. A pivoting support system for an agricultural planter, the system comprising: a pivoting support arm including a pivoting support arm pivot location orifice having an inside diameter, wherein the pivoting support arm is configured to be coupled to a support portion of an agricultural planter, the support portion including a support location orifice; a collar including a tubular section having an inside diameter and an outside diameter, wherein the collar is disposed in the pivoting support arm pivot orifice; a bushing extending at least partially through the collar; a connecting threaded member disposed through the bushing; and a terminal nut tightened over the connecting threaded member.

22. The pivoting support system of claim 21, wherein the bushing is an interchangeable, sacrificial wear item.

23. The pivoting support system of claim 21, wherein the bushing is made of a first material which is softer than a second material from which the collar is made.

24. The pivoting support system of claim 21, wherein the collar is made of a material that is harder than that of the bushing.

25. The pivoting support system of claim 21, wherein the collar is made of a material that is harder than that of the bushing, the pivoting support arm, the connecting threaded member, and the support portion of the agricultural planter.

26. The pivoting support system of claim 21, wherein the collar outside diameter is larger than a diameter of the support location orifice of the support portion of the agricultural planter.

27. The pivoting support system of claim 21 further comprising the support portion of the agricultural planter.

28. The pivoting support system of claim 21, wherein the support portion of an agricultural planter is a stationary support arm.

29. The pivoting support system of claim 21, wherein the collar is part of a rotation-limited intermediate member that further comprises a panel portion and a peg portion.

30. The pivoting support system of claim 29, wherein the pivoting support arm comprises a peg receiving orifice defined therein, and wherein the peg portion of the rotation-limited intermediate member is aligned with and received at least partially into the peg receiving orifice of the pivoting support arm.

31. A method of refurbishing a pivoting support system for an agricultural planter, the method comprising the steps of: providing an agricultural planter comprising: a support portion including a support location orifice; and a pivoting support arm including a pivoting support arm pivot location orifice, the pivoting support arm being configured to be pivotally coupled to the support portion; providing a collar, a bushing, a connecting threaded member, and a terminal nut; inserting the collar at least partially into the pivoting support arm pivot location orifice; inserting the bushing at least partially into the collar; inserting the connecting threaded member through the support location orifice and the bushing; and tightening the terminal nut over the connecting threaded member.

32. The method of claim 31 further comprising the step of making changes to the pivoting support arm pivot location orifice so as to facilitate receiving at least a portion of the collar therein.

33. The method of claim 31 further comprising the step of providing a peg receiving orifice in the pivoting support arm.

34. The method of claim 33, wherein the collar is part of a rotation-limited intermediate member that further comprises a panel portion and a peg portion.

35. The method of claim 34 further comprising the step of inserting the peg portion of the rotation-limited intermediate member at least partially into the peg receiving orifice of the pivoting support arm.

36. The method of claim 31, wherein the bushing is made of a first material which is softer than a second material from which the collar is made.

37. The method of claim 31, wherein an outside diameter of the collar is larger than a diameter of the support location orifice of the support portion.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0041] FIG. 1 is an exploded view of a portion of the present invention, where the single piece of centrally disposed cord is not a part of the present invention but used here to aid in rapid understanding of the orientation of the parts of the present invention.

[0042] FIG. 2 is another view of portions of the invention of FIG. 1, from a different position.

[0043] FIG. 3 is a view of portions of the invention of FIGS. 1 and 2 in an intermediate stage of assembly.

[0044] FIG. 4 is a close-up view of portions of e invention of FIGS. 1, 2 and 3 at a final stage of assembly.

[0045] FIG. 5 is a perspective underside view of the rotation-limited intermediate member of the present invention.

[0046] FIG. 6 is a bottom underside view of the rotation-limited intermediate member of present invention.

[0047] FIG. 7 is a side view of the rotation-limited intermediate member of present invention.

[0048] FIG. 8 is a cross-sectional view of the rotation-limited intermediate member taken on line 8-8 of FIG. 6.

DETAIL DESCRIPTIONS OF THE INVENTION

[0049] All illustrations of the drawings are for the purpose of describing selected versions of the present invention and are not intended to limit the scope of the present invention.

[0050] Now referring to the drawings wherein like numerals refer to like matter throughout; and more particularly, now referring to FIG. 1, there is shown a portion of an agricultural planter of the present invention, generally designated 1000, which includes a stationary support arm 1200, which could be OEM structure or it could be an aftermarket structure coupled to a tractor or other vehicle capable of being moved about an agricultural field. Stationary support arm 1200 includes stationary support arm pivot location orifice 1210 (which can partially be seen in, but is not labeled in, FIG. 2) and is shown having a cord running therethrough from the free end 1111 of connecting threaded member threaded portion 1110 of connecting threaded member 1100. The cord also runs through the pivoting support arm pivot location orifice 1310 of pivoting support arm 1300, which is an arm where portions of the planter can be loaded thereon and/or coupled thereto. The cord is next shown running through the rotation-limited intermediate member pivot location orifice 1432 in rotation-limited intermediate member 1400, which includes a rotation-limited intermediate member collar portion 1410, a rotation-limited intermediate member peg portion 1420 and a rotation-limited intermediate member panel portion 1430.

[0051] In a preferred embodiment, the rotation-limited intermediate member collar portion 1410 may be a cylinder with non-threaded internal and external cylindrical surfaces. Rotation-limited intermediate member peg portion 1420 is used to limit rotation of rotation-limited intermediate member 1400 with respect to the pivoting support arm pivot location orifice 1310.

[0052] The cord is shown running completely through hex-headed bushing 1500, which includes hex-headed bushing internally threaded shaft portion 1510, which preferably has a smooth exterior cylindrical surface, and a hex-headed bushing internally threaded hex head portion 1530, which is preferably configured to be engaged with a wrench.

[0053] Lastly, the cord is shown running to the terminal nut 1600.

[0054] Also shown is connecting threaded member 1100, which is intended to be inserted (after the removal of the cord) through stationary support arm 1200 and pivoting support arm 1300 and further through rotation-limited intermediate member 1400 when it is engaged with pivoting support arm 1300, as shown in FIG. 3. The hex-headed bushing 1500 is tightened on the connecting threaded member 1100 from the free end 1111. Lastly, the terminal nut 1600 is also tightened on the connecting threaded member threaded portion 1110 until it contacts the hex-headed bushing internally threaded hex-head portion 1530.

[0055] Now referring to FIG. 2, there is shown portions of the invention shown in FIG. 1, but from a different point of view.

[0056] Now referring to FIG. 3, there is shown a portion of the present invention, which has the rotation-limited intermediate member 1400 disposed so that the rotation-limited intermediate member collar portion 1410 is disposed in the pivoting support arm pivot location orifice 1310. This is a state of partial assembly of the present invention.

[0057] Now referring to FIG. 4, there are shown portions of the present invention in a fully assembled state with the hex-headed bushing 1500 engaging the rotation-limited intermediate member panel portion 1430 and the terminal nut 1600 disposed around the free end 1111 of connecting threaded member 1100.

[0058] Now referring to FIG. 5, there is shown an underside view of the rotation-limited intermediate member 1400 of the present invention. In general, this is a flanged bushing. The rotation-limited intermediate member 1400 is harder than hex headed bushing 1500, pivoting support arm 1300, stationary support arm 1200, and connecting threaded member 1100 it aims to make hex headed bushing 1500 as an interchangeable, sacrificial wear item. Preferably hex headed bushing 1500 will absorb damage of continuous and routine friction and rotational strain that might otherwise be borne by the components of any suitable mechanism. The hex headed bushing 1500 is intended to be significantly smaller, cheaper, and easier to service or replace than other portions of the mechanism that may require periodic maintenance in the absence of the present invention. It is therefore the intention of the hex headed bushing 1500 to serve as a designated point of failure between two functional components, effectively acting as a mechanical “fuse” for an associated mechanism.

[0059] In reference to FIGS. 6-8, the rotation-limited intermediate member 1400 comprises a rotation-limited intermediate member panel portion 1430, a rotation-limited intermediate member collar portion 1410 or simply “collar,” and a rotation-limited intermediate member peg portion 1420, or simply referred to as “dowel” or “peg.” The rotation-limited intermediate member panel portion 1430 constitutes a planar material from which the collar and rotation-limited intermediate member peg portion 1420 protrude. In the ideal embodiment, the collar and rotation-limited intermediate member peg portion 1420 both protrude from the same face of the rotation-limited intermediate member panel portion 1430. In alternate embodiments, the collar and rotation-limited intermediate member peg portion 1420 may protrude from both, or alternate faces of the rotation-limited intermediate member panel portion 1430. The rotation-limited intermediate member panel portion 1430, collar, and rotation-limited intermediate member peg portion 1420 are ideally formed of a single contiguous material through powdered metal sintering or precision casting, but are understood to be formed through any means, without limitation.

[0060] The rotation-limited intermediate member panel portion 1430 can be expressed as having a first tangent, a second tangent, a perforation or aka rotation-limited intermediate member pivot location orifice 1432, a first arc 1433, and a second arc 1435. The first arc 1433 defines the outermost edge of the larger segment of the panel, concentrically surrounding the perforation and the area to which the collar is mounted. The second arc 1435 defines the opposite edge of the rotation-limited intermediate member panel portion 1430, surrounding the area from which the rotation-limited intermediate member peg portion 1420 protrudes. The first tangent defines a connecting segment between the proximal end of the first and the proximal end of the second arc. The second tangent defines a connecting segment between the distal end of the first arc and the distal end of the second arc. The first arc, second arc, first tangent, and second tangent, collectively, define the outer perimeter of the rotation-limited intermediate member panel portion 1430, ideally in a rounded “teardrop” shape. It is understood that the rotation-limited intermediate member panel portion 1430 may be formed in a variety of alternate shapes in and dimensions to suit variable alternate components without departing from the scope of the present invention. The perforation is a hole traversing the width of the rotation-limited intermediate member panel portion 1430, ideally confined concentrically to the first arc. This perforation is ideally circular but may be formed in any shape or relative position. Ideally, this perforation is positioned concentrically with the collar, to allow passage of a variety of fasteners to secure the flanged bushing into operating position.

[0061] The collar comprises a first fillet, a second fillet, a third fillet, a conduit, and a first seam. The conduit defines the wall of the tubular section of the collar, ideally concentric to the perforation of the panel. This conduit would ideally not occlude any portion of the perforation, continuing the dimensions established by the perforation through to the distal end of the conduit. The first fillet defines the outer edge of the distal end of the conduit, ideally chamfered to facilitate insertion of the collar into a larger aperture. The second fillet defines the inner edge of the distal end of the conduit, ideally chamfered to facilitate passage of a fastener through the conduit. The third fillet defines the proximal edge of the conduit, positioned on the opposite face of the panel. The third fillet defines a similar surface feature to the second fillet, with similar intended functionality. The internal walls of the conduit are the primary wear surfaces of the flanged bushing, absorbing abrasive damage that might otherwise be borne by the associated aperture. The first seam defines the joint between the panel and the collar, though a more preferred embodiment of the invention may be formed where all components are from a single contiguous material. This first seam may be defined by any means or material without limitation. The inner and outer diameters of the collar, wall thickness, or any other dimensions are understood to be infinitely variable without departing from the original scope of the invention.

[0062] The rotation-limited intermediate member peg portion 1420 comprises a protrusion and a second seam. The protrusion defines an ideally cylindrical linear rod. In reference to FIG. 6, the rotation-limited intermediate member peg portion 1420 is intended to index the flanged bushing into a set angular position relative to the associated mechanism or aperture, such as pivoting support arm peg receiving orifice 1320. Alternate embodiments of the protrusion are understood to be infinitely variable with regards to shape and dimension to suit an unlimited number of possible use-cases without departing from the original scope of the invention. The second seam constitutes the joint between the rotation-limited intermediate member peg portion 1420 and the panel, ideally positioned concentric to the second arc of the panel. This second seam may be defined by any means or material, without limitation.

[0063] The method of the present invention for extending a service life of an agricultural planter comprises the steps of: [0064] providing a first vehicle, comprising a stationary support arm 1200, having a stationary support arm pivot location orifice 1210 disposed therethrough; [0065] providing an agricultural planter comprising a pivoting support arm 1300; having a pivoting support arm pivot location orifice 1310 disposed therethrough; [0066] providing a pivoting support arm peg receiving orifice 1320 in said pivoting support arm 1300; [0067] providing a rotation-limited intermediate member 1400 with a rotation-limited intermediate member panel portion 1430, a rotation-limited intermediate member peg portion 1420; and a rotation-limited intermediate member collar portion 1410, which is sized to fit in and fill the pivoting support arm pivot location orifice 1310; [0068] inserting a connecting threaded member 1100 through said stationary support arm pivot location orifice 1210, and pivoting support arm pivot location orifice 1310; [0069] providing a hex-headed bushing 1500, with a hex-headed bushing internally threaded shaft portion 1510; [0070] providing a terminal nut 1600; [0071] causing said connecting threaded member 1100 to be disposed through said rotation-limited intermediate member collar portion 1410; [0072] tightening said hex-headed bushing 1500 onto said connecting threaded member 1100 until said hex-headed bushing 1500 contacts said rotation-limited intermediate member 1400; and [0073] tightening a terminal nut 1600 on said connecting threaded member 1100 until contact is made with said hex-headed bushing 1500.

[0074] An alternative to this method is to omit the rotation-limited intermediate member 1400 and tightening said hex-headed bushing 1500 so that said hex-headed bushing internally threaded shaft portion 1510 fits in and fills said pivoting support arm pivot location orifice 1310.

[0075] Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention.