1. Field of Invention
The present disclosure provides a method of packaging a continuous length of a product or material in a container using rows or layers that are indexed (offset) a pre-determined distance when placed on a previous row or layer, and a package or container filled with indexed rows or layers by the present method.
2. Description of the Related Art
Continuous lengths of a material or of a finished product, such as an absorbent pad, can be easily packaged and shipped to end-users in a container (such as a large box) or by winding on a roll.
There are advantages to packaging a product in a box as compared with a roll. For example, a large box filled with products can be easily stored and shipped to the end-user because a box fits on a pallet and stacks more easily, with less wasted space, as compared with a large roll. Also, a large box generally can contain more linear feet of a continuous length of a product as compared with a similarly-sized roll, and thus requires fewer set-ups by the end-user, and less down time.
In addition, a box or other flat-bottomed container can be placed on the ground or on a table while the end-user is unloading the product, rather than being lifted onto a spindle or rod, as must be done for a large roll, thereby reducing the risk of accident or of “telescoping” if the large roll is mishandled or improperly loaded onto the spindle.
However, packaging a continuous length of a product or material into a box by conventional methods has disadvantages that can limit its practicality. Conventional packaging techniques for continuous lengths of a product or material, such as “fan folding,” operate by dispensing layer upon layer of the product, back and forth, thereby forming several stacks or “lanes” of the product in the box. Using such techniques, when a first “lane” of the product reaches the top height of the container, the product is cut, and a new stack of the product is started immediately adjacent to the first stack, at the bottom of the box. The new stack is built, as the first, by folding layer upon layer of the product, back and forth, until a second stack is formed up to the top of the box, and so on. The process continues in this manner until the entire interior volume of the box is filled by multiple vertical stacks or lanes of a product, where these stacks are aligned and adjacent, but not connected, to each other.
However, a box or other container that is filed by laying in multiple stacks or lanes of a product has disadvantages that make it inefficient and impractical for an end-user. Because each of the stacks in the box are unconnected with the next stack, the manufacturer or end user has to splice the tail of each stack with the head of the adjacent stack; otherwise, the dispensing machine has to be re-threaded with the product as each individual stack is depleted. From a practical point of view, splicing the tail of one stack to the head of an adjacent stack has the disadvantage that the tail of one row is located at the bottom of the box, and the head of the adjacent stack is at the top of the box.
Another drawback of such conventional packaging techniques is that, as the end-user begins to deplete the contents of the box, the box can become unbalanced and unstable. Also, as each stack is used up by the end-user, the remaining stacks of the product can fall over into the empty portions of the box after enough stacks are depleted, particularly when the box itself has become unbalanced midway through use. Some have tried to prevent the remaining stacks from falling over into the empty part of the box by placing a physical divider between each of the stacks or lanes. However, dividers can interfere with smooth, continuous uptake of a product from the box, particularly if the end-user has spliced together adjacent lanes for a continuous feed. Also, dividers reduce the amount of space available to package the product or material.
Also, conventional techniques have the problem that, as one stack is being unloaded by machine, the motion of pulling one stack of the product out of the container can cause the adjacent row to fall over, causing the box to become unbalanced and adding to the difficulties in dispensing the next row.
The present disclosure provides a method of packaging a continuous length of a product or material in a container that forms “indexed” rows or layers of the product or material in the container, such that each row or layer dispensed into the container is slightly offset or shifted (i.e., “indexed”) in relation to the previous row or layer to partially overlap the previous layer. As additional rows of a product or material continue to be dispensed into the container, the indexed rows form horizontal layers that fill the container.
The present disclosure also provides a container or package that is filled by the present method with a continuous length or strip of a product or material in indexed rows that form horizontal layers.
The indexed rows of the present method are placed in the container by a dispenser (dispensing device) that lays a first row of a product or a material into a container on its bottom surface. After the first row of material reaches an opposite edge of the container from the starting edge, the dispensing device reverses direction, folding the product or material over, and begins to place down a second row of product or material that partially overlaps the first row, but in an opposite (reciprocal) direction. The second row is offset (indexed) in relation to the first row by a certain distance, called an index distance. The index distance can be caused by moving the dispensing device, moving the container, or by a combination of both.
The above method is repeated for a third row, fourth row, and so on, so that there is a plurality of rows of product or material dispensed into the container, with each successive row of product or material placed in the reverse direction in relation to the previous row, and offset therefrom by an index distance. The successive rows form a first horizontal layer that extends from one end to an opposite end of the container. After the first horizontal layer is formed, the dispensing device continues to dispense successive rows of the product or material in the opposite direction (toward the opposite end of the container) to form a second horizontal layer. This is repeated until the container is filled to a desired height, weight, or amount of the product or material. A container can, if desired, be filled by this method with a single, continuous length of products or materials.
Movement of the dispensing machine and/or the container while the product or method is being dispensed therein can improve the speed and efficiency of the present method. The container can be positioned on a mechanical device that can tilt or rock the container in any direction. Tilting the container as the row of the product or material approaches each edge and end of the container assists the folding of the product or material close to each edge, thereby maximizing the use of space therein. Optionally, an inserted mechanical device or burst of compressed air that exerts a force against the product or material as it folds pushes the fold closer to the edge of the container, to maximize the use of space in the container.
Likewise, after the container has been shipped to an end-user, tilting and/or moving the container can increase the speed and efficiency by which the product or material is removed from the container for use.
The present method permits a single, continuous length of a product or material to be dispensed into a container. This permits a very large amount of the product or material to be placed within a container, and also permits an end-user to remove the product or material from the container as a continuous feed requiring a single set-up, thereby reducing down time and inconvenience.
The product or material is dispensed into the container in successive rows that are indexed in relation to the previous row to form horizontal layers, which provides stability and safety as the container is being filled, and later when the product or material is removed from the container for use by the end-user. The present method provides a natural separation plane between adjacent rows, permitting the product or material to be dispensed by an end-user quickly and cleanly, and eliminating the need for physical dividers used in conventional techniques to prevent stacks from shifting or falling in the container when a portion has been removed by an end-user. The present method also eliminates the need for splices of the products or material within a container.
A container that is packaged by the present method also has advantages over a large roll. A container of the present disclosure can be filled with a larger amount of a continuous length of products or materials than a large roll. A container of the present disclosure rests solidly on a pallet, and so is safer and easier to transport than a large roll. Also, a container packaged by the present method can be placed on a floor or table for unloading as a continuous feed by an end-user, which avoids the need to load a large roll onto a spindle for use.
Referring to the drawings and, in particular,
As shown in
When second row 24 is placed by dispensing device 14 and reaches edge 13 of container 10, dispensing device 14 reverses direction again, thereby folding product or material 12, and starting a third row 26 of product or material 12 that partially overlaps second row 24 but is indexed (shifted) by index distance 28 relative to second row 24 away from first row 22. This is also illustrated in
Dispensing device 14 (also called “dispenser” herein) is a device that can transfer a product or material 12 from an external storage source (not shown) into the interior space of container 10. An example of dispensing device 14 is a gantry. Alternatively, products or material 12 can be placed into container 10 “by hand,” as long as successive rows are indexed in relation to the previous row.
Further steps may be taken to increase the amount of product or material 12 that can be dispensed into container 10. To help anchor first row 22 to container 10, a portion of first row 22 can be fastened or adhered to container 10 with a fastener such as, but not limited to, glue, tape, and hook-and-eye devices such as VELCRO®.
A mechanical device, such as a “fork” (not shown) can be inserted into fold 23 to press and force fold 23 as close as possible to edge 13, 15 of container 10, in order to provide a maximum “footprint” of product or material 12 in container 10. Alternatively, a device that provides a burst of compressed air can be used to accomplish this. For instance, with reference to
As illustrated in
The offset of adjacent rows, such as between first row 22 and second row 24, is created by a movement by dispensing device 14, or by a movement of container 10, and/or by a combination of both, that displaces the row of the product or material 12 being dispensed into container 10 by a specified amount from the previous row. As illustrated in
An advantage to creating the offset among rows by moving dispensing device 14 is that the dispensing device may be lighter (or at least is a consistent weight) and more maneuverable than container 10, which can vary considerably in weight as the container fills. However, placing container 10 on a mechanical device, such as one or more cams, that permits container 10 to be easily tilted, rocked, and moved, can also be used to create the offset among successive rows. For example, dispensing device 14 can move straight back and forth, while container 10 shifts a certain distance to create index distance 28 between adjacent rows. In addition, combining movement of dispensing device 14 and container 10 can be an aid to efficient dispensing of products or materials into container 10 by the present method. The movements can achieve different ends: container 10 can be tilted at the end of placing each row into the container, to help the rows fall all the way toward edges 13, 15, thereby providing maximum use of space in container 10, while dispensing device 14 is moved a certain distance to create the proper offset between successive rows.
Referring to
For example, container 10, such as a box, can be tilted from a neutral level position by movement of the cams so that the upper edge of container 10 is between about 1 to about 70 degrees above or below neutral position, and preferably between about 5 to about 45 degrees from neutral position. After a row of product or material 12 is placed in container 10, and dispensing device 14 reverses direction and begins to place the next row of product or material 12 in an opposite direction in relation to the previous row, container 10 returns to a neutral position, and then tilts toward the opposite side just as the new row approaches the opposite edge of container 10, helping to extend the new row closer to the edge of container 10.
Referring to
An “end-user” is a customer or employee who uses and consumes product or material 12 that has been previously packaged in container 10 for its intended use; that is, one who removes product or material 12 from container 10.
Likewise, when product or material 12 is being removed from container 10 by an end-user, container 10 can be advantageously placed on a moveable device, including one or more cams, that permit container 10 to be moved and/or rocked back and forth to assist removing product or material 12 from container 10.
Referring to
Referring to
The process shown in
When each horizontal row of a product or material 12 is placed in container 10—for instance, when a row is laid between along end B1/B2 in FIG. 4C—the method proceeds in the same manner as before but in the opposite direction, placing successive rows of a product or material 12 from end B1/B2 toward end A1/A2, each row of which is offset or displaced from the next-earlier row by an index distance 28. In this way, a second horizontal layer of product or material 12 is placed over the first horizontal layer in container 10.
Once the second horizontal row is completed (i.e., when the row of product or material 12 reaches end A1/A2), the method begins a third horizontal row in the opposite direction, laying down rows of a product or material 12 from A1/A2 to B1/B2, to form a third horizontal layer that rests on the second horizontal layer and first horizontal layer. A plurality of horizontal layers is laid in container 10 until container 10 is filled to a desired height, weight, or number of units of the product or material 12.
Although
The product or material 12 can be a single continuous strip among first row 22, second row 24, third row 26, and all subsequent rows, until container 10 is filled, thereby producing a container 10 that is packaged with a continuous length or strip of a product or material 12. Alternatively, a cut or break in product or material 12 can be made by the manufacturer when a desired length of material is reached; for example, after a certain number of linear feet have been packaged. In this way, two or more lengths of a strip of a product or material 12 can be placed in container 10.
Although product or material 12 is continuous, there can be perforations or cut-lines on product or material 12 to assist the end-user to identify individual products, as illustrated in
The preceding disclosure refers to a single pass of a continuous material as a “row,” but the same could also be referred to as a “layer.” Thus, the present method comprises a method of packaging a container 10 using a series of passes of dispensing device 14 to place indexed layers of a product or material 12 in container 10 that are each offset or shifted in relation to an underlying layer by a certain index distance 28, so that the individual layers partially overlap to form indexed layers. A series (or set) of such indexed layers across a level of container 10 forms a horizontal layer. Horizontal layers are formed in this manner to fill container 10 with a desired amount of the product or material 12.
A container or package 10 that is filled by the present method with a continuous length or strip of product or material 12 in indexed rows or layers is also provided. Container 10 can be a large box, or any container that is able to hold a large quantity of a product or material. Container 10 can be made of any material, including, but not limited to, cardboard, wood, metal, paper, plastic, composite, or polymer. Container 10 preferably has dimensions of about forty inches (40″) by about forty-eight inches (48″) by about forty-six inches (46″), in order to fit easily on a pallet. However, container 10 can be of any dimension that permits indexed rows or layers of product or material 12 to be packaged therein by the present method.
The present method can be used for packaging and dispensing a variety of products or materials, including products or materials that are fibrous materials, such as fabrics and non-wovens. The present methods for packaging can also be used for packaging and/or dispensing finished products, including products that can be dispensed as a continuous piece and cut by the end-user, such as absorbent food pads and/or other absorbent articles. The product or materials 12 that are packaged by the present method are typically uniform in thickness, size, and/or texture, but the present method would also work where the product or material 12 had varied parameters at various locations in its continuous length, as long as the successive rows could be placed in indexed rows in container 10.
As an example, a continuous length of absorbent food pads of more than 21,000 linear feet can be packaged in container 10 by the present method as a single, continuous length, with marks or perforations to indicate the individual food pads. To remove the absorbent food pads from container 10 that were placed therein using the present method, an end-user is able to set up the packaged container one time to permit all of the absorbent food pads to be dispensed continuously and quickly from container 10. The absorbent food pads, in this example, can be cut (or separated along pre-made perforations) to a desired size to fit in a food tray as they are dispensed.
The present method for packaging a product or material 12 in container 10 offers the following advantages over the same product or material 12 packaged on a large roll. A roll does not hold as many linear feet of product or material 12 as can be packaged in container 10 by the present method. Also, a roll is more difficult for an end-user to load, as a roll must be lifted onto a spindle before product or material 12 could be dispensed. Also, a large roll requires more space for shipping, with more wasted space between rolls, as compared with container 10. Also, container 10 fits on a pallet and so can be more easily transported than a roll.
The present method also offers several other advantages over conventional packaging techniques that places long strips of products or material in a container. Conventional packaging techniques lay successive rows of product or material to form a series of stacks or “lanes” in the container, which can cause the container to become unstable during the dispensing process as the stacks are depleted, and risks having the remaining stacks fall over into the interior of the container that is vacated during the dispensing process. By comparison, the horizontal layers formed by the present method can be dispensed by an end-user without causing instability of the container 10, as the product or material 12 is dispensed evenly from the length and width of the entire container. Also, conventional packaging techniques do not permit an entire container to be dispensed as a single, continuous feed unless the adjacent lanes are spliced together. By contrast, the present method permits all of product or material 12 in container 10 to be dispensed as a single, continuous length (if desired), without splicing. The present method also avoids the need to place dividers between the vertical stacks or lanes that are formed by conventional packaging techniques. By comparison, the horizontal layers formed by the present method offer the advantages of stability when removing product or material 12 from container 10, eliminate the need to use dividers, and maximize the use of space within container 10, thereby providing an end-user with greater safety and speed when removing product or material 12 from container 10.
Each container that is packaged or filled by the present method can have a “tail” of product or material 12. The tail can extend outside of container 10 or can be contained inside of it. If desired, a tail from a first container can be connected to a tail in a second container, to further increase the efficiency of the method to dispense a continuous feed of product or material 12 from the first and second container with a single set-up.
Although various illustrative and representative embodiments have been described herein, other modifications and configurations are available and are to be considered as being within the scope of the present disclosure.
This application claims the benefit of U.S. Provisional Application No. 61/097,865, filed on Sep. 17, 2008, which is incorporated by reference herein.
Number | Date | Country | |
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61097865 | Sep 2008 | US |