High density double small square baler
11419274 · 2022-08-23
Assignee
Inventors
Cpc classification
International classification
Abstract
A multi-part square baler produces multi-part bales that each include two smaller single bales. The baler includes a double knotter configured to tie first and second four string knots that connect the ends of a multi-bale top-string and a multi-bale cincture string encompassing the two small single bales. The double knotter is also configured to tie a two-string knot on the strings encompassing the first small bale and another two-string knot on the strings encompassing the second small bale. The strings encompassing each of the small single bales are also tied into a respective one of the two four-string knots.
Claims
1. A multi-part square baler comprising: a bale chamber configured to receive a multi-part bale encompassed by a multi-bale string assembly formed in a string plane, the multi-part bale including at least a first single bale encompassed by a first single-bale string assembly formed in the string plane; a plurality of string sources including a first string source, a second string source, a third string source and a fourth string source, wherein the first string source is configured to provide a first single-bale top-string and a second single-bale top-string, the second string source is configured to provide a multi-bale top-string, the third string source is configured to provide a first single-bale cincture-string and a second single-bale cincture-string, and the fourth string source is configured to provide a multi-bale cincture-string; a knotter configured to tie a four-string knot comprising the first single-bale top-string, the multi-bale top-string, the first single-bale cincture-string and the multi-bale cincture-string, the knotter further being configured to tie a two-string knot comprising the first single-bale top string and the first single-bale cincture-string; a needle configured to feed the first single-bale top-string, the multi-bale top-string, the first single-bale cincture-string and the multi-bale cincture-string into the knotter to tie the four-string knot, the needle being further configured to feed the first single-bale top-string and the first single-bale cincture-string into the knotter to tie the two-string knot; and a shifter configured to shift the multi-bale top-string and the multi-bale cincture-string out of the string plane as the needle feeds the first single-bale top-string and the first single-bale cincture-string into the knotter.
2. The multi-part square baler of claim 1, wherein the knotter is further configured to cut the first single-bale top-string and the first single-bale cincture-string upon completing the two-string knot.
3. The multi-part square baler of claim 2, wherein the knotter is a double knotter.
4. The multi-part square baler of claim 1, wherein the shifter is a first shifter, the multi-part square baler further comprising: a second shifter configured to shift the multi-bale cincture-string out of the string plane as the needle feeds the first single-bale top-string and the first single-bale cincture-string into the knotter.
5. The multi-part square baler of claim 1, wherein the multi-part bale includes a second single bale encompassed by a second single-bale string assembly formed in the string plane.
6. The multi-part square baler of claim 4, wherein the four-string knot is a first four-string knot and the two-string knot is a first two-string knot; and wherein the knotter is further configured to tie a second four-string knot comprising the second single-bale top-string, the multi-bale top-string, the second single-bale cincture-string and the multi-bale cincture-string, the knotter further being configured to tie a second two-string knot comprising the second single-bale top-string the second single-bale cincture-string.
7. The multi-part square baler of claim 6, wherein the knotter is configured to cut the first single-bale top-string and the first single-bale cincture-string between the first two-string knot and the second two-string knot.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The accompanying drawings, which are incorporated in and constitute part of the specification, illustrate various embodiments of the invention. Together with the general description, the drawings serve to explain the principles of the invention. In the drawings:
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DETAILED DESCRIPTION
(9) The present inventors recognized that shipping and storing costs for small square hay bales add significantly to the overall price paid by the end user. The present inventors further recognized the value that may be realized by shipping and storing hay in a denser, heavier format (e.g., compacted dual small square bales) while still being able to deliver hay sized like standard sized small square bales to the end user. Standard sized small square bales are approximately 14″ high×18″ wide×40″ long. Various embodiments of the present invention create pairs of decreased volume single square bales, tying them together to form a multi-part standard sized bale. In various embodiments these mini square bales may be compressed to have a higher density than standard sized small square bales. This allows more hay to be shipped and stored in existing transport vehicles and hay storage facilities.
(10) In addition, each single bale that makes up a multi-part bale is smaller than a standard sized small square bale. The present inventors recognized a need in the marketplace for straw and hay bales that are smaller than the standard sized small square bale. For example, homeowners often need a small amount of straw for a flower bed or gardening purposes. It can be difficult for a homeowner to purchase an entire standard sized small square bale of straw and transport it home in an automobile. Further, it's more convenient for garden stores to shelve smaller sized mini bales inside the store, as opposed to the larger standard sized small square bales. Up to this point hay bales smaller than a standard sized small square bale have not been made available in the marketplace. Thus, the various embodiments meet a need in the marketplace that has not previously been served.
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(13) The top and side portions of the multi-bale string assembly 119 run parallel to corresponding parts of the single-bale string assemblies 117. Some of the multi-bale knots are tied together with all four strings in a four-string knot 115, while other knots only tie two of the string assemblies in a two-string knot 113. The location of the four string knots and two string knots can be determined in looking at
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(16) The double knotter 231 can tie either a two-string knot 113 or a four-string knot 115, as per the knots shown in
(17) Turning to
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(19) In
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(21) The high density double small square baler is capable of compressing hay at a higher density than conventional small square balers by increasing the plunger force. This makes the multi-part bales weigh more per inch of length than conventional bales. Thus, multi-part bale made to be standard small square bale size (e.g., sized at approximately 14″ high×18″ wide×40″ long) weighs more than a similarly sized conventional bale. This reduces storage costs since more hay can be stored in a given facility. It also tends to reduce transportation costs since hay is not a particularly heavy material and hay trucks are generally not loaded to their maximum allowable weight. The heavier, more dense multi-part bales allow more hay to be hauled for a given sized truck. Moreover, tying the two short single bales together into a standard sized multi-part bale allows use of existing automated bale handling equipment, trucks, hay wagons and storage facilities that are designed and built for the standard sized square bales.
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(23) Once the needle has been lowered in block 305 the method proceeds to block 307 and a plunger pushes hay into the bale chamber for the first single bale. In block 309 the shifters move the two pieces of string for the large string assembly aside (e.g., strings 109 and 111 of
(24) Once the short cincture-string and short top-string are in the knotter the method proceeds to block 313 where the first two-string knot is tied (e.g., knot 113-1 of
(25) In block 321 the plunger is again activated to push more hay into the bale chamber for the second single bale of the multi-part bale. Once the predefined amount of hay is in the chamber the needle is again hinged upward. As the needle moves upward it initially reaches the long cincture-string and the second short cincture-string, pushing them upward (e.g. e.g., strings 105 and 109). As the needle continues hinging upward it reaches the long top-string and second short top-string, pushing these strings as well. The needle thrusts into the knotter in block 323, pushing all four strings into the knotter. The method proceeds to block 325 and the knotter ties the second four-string knot to complete the multi-part bale. As a matter of practice the knotter cuts the four strings and ties another knot in anticipation of making another multi-part bale. If another bale is to be made the method proceeds along the “YES” path from block 327 and the process being again. As needle is lowered again and hay is pushed into the bale chamber the completed multi-part bale is pushed further along in the bale chamber on its way out of the baler. If no more bales are to be made the method proceeds along the “NO” path from block 327 and ends in block 329.
(26) Some of the activities may be included or excluded as described above, or performed in a different order as is known by those of ordinary skill in the art, while still remaining within the scope of at least one of the various embodiments. For example, as a practical matter once a multi-part bale is completed by tying the second four-string knot in block 325 the knotter ties another four-string knot and cuts the two knots apart. In this way there won't be any loose string ends that need to be held. Instead the string sources are tied together—string source 211 is tied to string source 205 and string source 207 is tied to string source 209. The string sources may be string spools, balls or spools any other method of storing and transporting string known to those of ordinary skill in the art. It may be the case that a single string source serves dual purposes. For example, a single spook may feed two strands to the knotter, e.g., one strand from the inside of the spool and the other string from the outside.
(27) The terminology used herein describes the embodiments outlined in this specification, and is not intended to limit the invention. The terms “up” or “upward” refer to a direction tending away from the center of the earth. The terms “directly up” or “directly upward” (or “directly down” or “directly downward”) are more precise terms referring to the direction straight upward away from the center of the earth. The phrases “removably attached”, “removably affixed” or “removably mounted”, as used herein, mean a part (or mechanism, component device, unit etc.) that can be attached to another part, and later removed without destroying or damaging either part or the mechanism for removably attaching the two pieces. For example, a threaded nut is removably attachable from a bolt. A king bolt is removably attachable to a wagon tongue. However, one piece of metal welded onto another piece of metal is not removably attached. Also, one part that is riveted onto another part is not considered to be removably attached since the rivets must be destroyed to separate the two parts. Two parts that are “permanently attached” or “permanently affixed”, as used herein, are attached in a manner that is not conducive to separating the parts without damaging one part or the other, or damaging the means of attaching them together. Two parts may be “permanently attached” (or “permanently affixed”), for example, by being welded, glued or riveted together. Further two parts that are formed from the same piece of material are considered to be permanently attached together.
(28) The phrase “at least proximate” refers to a component's location relative to another item. For example, a long cincture-string may be located at least proximate to the two short cincture-strings of a multi-part bale. “At least proximate” can also mean within a distance no greater than the largest dimension of the thing itself. For example, a lower shifter that moves out of the string plane while remaining at least proximate to it may move a short distance—say 2 inches—which is less than the longest dimension of the shifter.
(29) For ease of explanation and clarity the various embodiments of balers disclosed herein that produce multi-part bales have been described in terms of the string assemblies being tied to run across the top lengthwise, down the sides, and across the bottom. It would be possible for a baler to be built that ties the string assemblies around the perimeter instead of across the top and bottom sides. In such a case the upper and lower shifters would become the right and left shifters, and the various descriptions using up, down, above, below, etc. would be reworded to equivalently describe the various embodiments in terms of left and right.
(30) The various embodiments have been described herein in terms of using a double knotter (e.g., double knotter 231 of
(31) A bale is a bundle of hay, cotton, or other materials tightly wrapped and bound with twine, wire, cords or hoops. Although the descriptions in this document have referred to bales as hay bales, the various embodiments may be implemented with any number of crops or other materials. For example, the various embodiments may be used to make multi-part bales of hay, straw, grass, corn stalks, pine needles, sugar cane mulch, or multi-part bales made from plant stems, stalks, shafts, sticks, and/or leaves of any other plants that are known to those of ordinary skill in the art. Moreover, the various embodiments may be implemented with any number of other materials formed into multi-part bales, including for example, paper, lumber, shingles, pipe, tubing, insulation, bricks, tiles or any other material that could be baled for transport or storage, as such materials are known by those of ordinary skill in the art. This document uses the term “string” to describe the material used to create bales. “String” as used herein is defined to include twine, rope, cord, wire, strapping, or other long flexible strands that one of ordinary skill in the art considers suitable for use in a baler. The term “row of string assemblies”, as this term is used herein, means the string assemblies (i.e., pieces of string) of a multi-part bale and the string assemblies of two or more single bales that are all within the same plane.
(32) This document refers to “small square bales” in various descriptions throughout the disclosure. The term “small square bale” is a term of art in the hay industry. Small “square” bales have sides that are more or less flat and are roughly rectangular shaped—and not necessarily square—as viewed from the side, the end or the top. The sides come together at edges that are more or less square (i.e., 90 degrees), as opposed to large round bales that are cylindrical in shape. Standard sized small square bales are approximately 14″ high×18″ wide×40″ long, but may be up to 16″ high and 22″ wide. The length of small square bales can vary considerably, typically from as little as 35″ to as long as 50″. The various embodiments disclosed herein may be implemented in any of these dimensions, or other larger or smaller dimensions, depending upon the desired characteristics for weight and volume, e.g., the load bearing parameters and dimensions of the vehicles to be used for transport and the storage facilities.
(33) There are conventional three-string small square bales and conventional two-string small square bales. The dimensions of a standard sized two-string small square bale are approximately 14″ high×18″ wide×40″ long. The weight of a conventional two-string small square hay bale is around 60 pounds for hay, but may be much higher or lower depending upon the density of the materials or weight of the crop being baled. Straw bales are slightly lighter. Three string bales are less common than two string bales. The dimensions of a conventional three-string small square bale are approximately 16″ high×22″ wide×44″ long. The weight of a typical three-string small square hay bale is around 100 pounds. The term “single bale” (or “single square bale”), as this term is used herein, means a quantity of material (e.g., hay) surrounded by a multi-piece string assembly to form a bale that may be one of two or more bales formed into a multi-part bale. For example,
(34) A knot is a fastening between two pieces of string (or two ends of the same piece of string) made by tying one piece of string to the other. A two-string knot that ties together two strings is said to be a two-string knot comprising the two strings (or two pieces of string). A four-string knot that ties together four strings is said to be a four-string knot comprising the four strings.
(35) The term “multi-part bale”, as this term is used herein, means a bale that is formed by tying together multiple smaller sized bales.
(36) This document describes implementations where two single bales are tied together to form one multi-part bale of roughly the same size as a standard sized small square bale. In various other multi-part bale implementations more than two single square bales are tied together to form a larger sized multi-part bale; e.g., three mini sized single bales, four mini sized single bales, or any other number of mini sized single bales may be tied together into a multi-part bale as such number would be known by one of ordinary skill in the art. A “mini sized” bale is a bale smaller than a standard sized small square bale of approximately 14″ high×18″ wide×40″ long.
(37) As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes,” and/or “including” used in this specification, including the claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms “obtaining” or “providing”, as used herein and in the claims, means to retrieve an article or device to be assembled as part of the apparatus at issue. Further, the terms “obtaining” or “providing” may be defined to mean fabricating, or adapting another part to operate as the article or device. For example, bending up the ends of a bottom panel to form side panels can be interpreted as providing side panels attached to a bottom panel. The term “plurality”, as used herein and in the claims, means two or more of a named element. It should not, however, be interpreted to necessarily refer to every instance of the named element in the entire device. Particularly, if there is a reference to “each” element of a “plurality” of elements. There may be additional elements in the entire device that are not included in the “plurality” and are therefore, not referred to by “each.”
(38) The terms “parallel” and “planar” are used herein in a workmanship descriptive sense, and are not necessarily defined in a strict mathematical sense. For example, the string assembly 119 of the multi-bale shown in
(39) The corresponding structures, materials, acts, and equivalents of any means plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope or gist of the invention. The various embodiments included for discussion herein were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.