The present invention relates, generally, to ecologically sustainable methods and apparatus for manufacturing wine packaging materials and shipping containers and, more particularly, to an environmentally friendly packaging configuration for shipping wine bottles using molded fiber and corrugated materials.
Pollution caused by single use packaging materials is epidemic, scarring the global landscape and threatening the health of ecosystems and the various life forms that inhabit them. Trash comes into contact with waterways and oceans in the form of bits of Styrofoam and expanded polystyrene (EPS) packaging, to-go containers, thin film bags and photo-degraded plastic pellets.
Sustainable solutions for reducing plastic pollution, including both molded fiber and corrugated cardboard materials, are gaining momentum. However, continuing adoption requires these solutions to not only be good for the environment, but also competitive with current packaging and shipping materials from both a performance and a cost standpoint. The present invention involves an improved wine packaging and shipping assembly and related methods using molded fiber and corrugated components. In addition, the present invention replaces the traditional three-dimensional fiber molded top half of a wine packaging assembly with a single, planar, corrugated sheet, further reducing cost, weight, waste, and overall complexity.
By way of brief background, molded paper pulp (molded fiber) has been used since the 1930s to make containers, trays and other packages, but experienced a decline in the 1970s after the introduction of plastic foam packaging. Paper pulp can be produced from old newsprint, corrugated boxes and other plant fibers. Today, molded pulp packaging is widely used for electronics, household goods, automotive parts and medical products, and as an edge/corner protector or pallet tray for shipping electronic and other fragile components. Molds are made by machining a metal tool in the shape of a mirror image of the finished package. Holes are drilled through the tool and then a screen is attached to its surface. The vacuum is drawn through the holes while the screen prevents the pulp from clogging the holes.
Corrugated materials are available in different wall thicknesses, known as flutes sizes. In particular, corrugated material is comprised of three fiberboard layers; two linerboards and a middle sheet comprising a wave-shaped pattern of arches known as flutes. These flutes are adhesively sandwiched between the outer linerboards.
On end, flutes form rigid columns capable of supporting substantial weight. From the side of the board, the space between the flutes acts as a cushion to protect the container's contents. Flutes also serve as a thermal insulator, providing protection from sudden temperature changes. The linerboard provides additional strength and protects the flutes from damage.
Flutes are categorized by various sizes, known as flute profiles, ranging from A-flute (the largest) to F-flute and below (microflutes):
E-Flute: 1/16″ thick, 90 flutes per linear foot
B-Flute: ⅛″ thick, 47 flutes per linear foot
C-Flute: 3/16″ thick, 39 flutes per linear foot
A-Flute: ¼″ thick, 33 flutes per linear foot
The A-flute is the original corrugated flute design and is the thickest. A-flutes provide a high degree of cushioning for fragile products. The C-flute is the most widely used flute size, commonly used for packaging glass products. B-flutes provide a stiff, flat surface for high quality printing and die cutting. Developed for packaging canned goods, the B-flute is used for beverage trays, wrap-around blanks, glass-to-glass packs, and slipsheets.
Containing about 90 flutes per foot, the E-flute has high crush resistance and a relatively flat surface for high quality printing applications. The thin board profile of E-flute reduces outer box dimensions, and can help save storage space. The F-flute is used for specialty packaging, point-of-purchase displays, jewelry and cosmetic packages, and shoe boxes. In the United States, fast food chains are adopting F-flute materials in clamshell packaging.
In addition, the foregoing single flute configurations may be combined to form double flutes such as, for example, AE, BE, BC, AB, and the like.
Presently known non-petroleum based wine shipping assemblies include a molded fiber base (or bottom) component having individually partitioned cylindrical segments configured to receive six or twelve bottles. A molded fiber cap (or top) component includes corresponding individually partitioned conical segments configured to receive the top portions of the bottles such that, when the cap is placed over the bottles, each bottle is protected from contacting the other bottles. The entire assemble is received within a corrugated carton and sealed for shipment.
Non-standardized bottle sizes, shapes, and heights, coupled with manufacturing limitations on the size and shape of vacuum molded fiber cap components, limit the utility of the foregoing packaging assembly. For example, in many applications a gap exists between the top of the molded fiber base and the bottom of the molded fiber cap. To accommodate this deficiency, a corrugated divider includes a plurality of vertically oriented, orthogonal planar segments running between adjacent bottles to protect the bottles from contacting each other during shipment. However, the divider increases assembly and packing time, cost, material count, waste, and overall complexity.
Improved wine packaging and shipping assemblies are thus needed which overcome the limitations of the prior art.
Various features and characteristics will also become apparent from the subsequent detailed description and the appended claims, taken in conjunction with the accompanying drawings and this background section.
Various embodiments of the present invention relate to wine packaging and shipping assemblies which include: i) a vacuum molded base component having a plurality of cylindrical concave columns within which respective bottles are placed; ii) a substantially planar single or double fluted corrugated sheet (which replaces the aforementioned divider) having a plurality of expandable holes aligned with the axes of the columns, with each hole configured to slidably receive a respective bottle neck therethrough; iii) an optional vacuum molded cap component for receiving the top portions of the bottles therewithin; and iv) an outer corrugated box within which the foregoing components are secured.
It should be noted that the various inventions described herein, while illustrated in the context of wine bottles, are not so limited. Those skilled in the art will appreciate that the inventions described herein may contemplate packaging and/or shipping containers for any products which need to avoid contact with one another during shipment.
Various other embodiments, aspects, and features are described in greater detail below.
Exemplary embodiments will hereinafter be described in conjunction with the appended drawing figures, wherein like numerals denote like elements, and:
The following detailed description of the invention is merely exemplary in nature and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any theory presented in the preceding background or the following detailed description.
Various embodiments of the present invention relate to packing and shipping assemblies for bottles comprising a fiber-based (or pulp-based) bottom receptacle for receiving a plurality of bottles, a planar divider for separating the bottles, and an optional cap component configured to retain the divider on the bottles during shipping. In a preferred embodiment the separator comprises a single or double fluted corrugated cardboard material, although the separator may comprise any suitable material including foam, paper foam, plastic, polyethylene foam, packing foam, styrene-butadiene block copolymers (e.g., SBS), or plastic.
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In the illustrated embodiment in which a receptor comprises a plurality (e.g., 8) of folding segments, each segment comprises a circumferential dimension 1216 in the range of 20 to 90 degrees, and in the case of eight segments, approximately 45 degrees. An exemplary hole dimension 1214 may be in the range of 0 to 1 inch, and preferably about 0.5 inches. In an embodiment, a hole may be diminishingly small, as long as the cut lines defining the pivoting flaps extend substantially or all the way through the separator. By simply creasing or scoring, as opposed to cutting the flap pivot lines, the flap's resistance to further folding assists in restraining the bottles from lateral movement during shipment.
In an embodiment, the hole may be stamped, die cut, or otherwise formed in a way which produces a smooth internal edge to avoid scratching the bottle label. Alternatively or in addition to the foregoing, the internal edge of the hole may be smoothed, for example by de-burring, sanding, or through the use of a moving abrasive material in a subsequent processing step after forming the hole. The hole size may be a function of the bottle neck diameter.
The separator may comprise single or double walled corrugated cardboard, with an edge crush test (ECT) strength in the range of 26 to 56, and preferably about 32, and/or a Mullen burst strength in the range of 150 to 350 pounds, and preferably about 200 pounds.
Those skilled in the art will appreciate that any combination or sub-combination of dimensions described in conjunction with
The separator may employ any desired fluting configuration depending on size, weight, and other relevant design parameters. By way of non-limiting example, an E flute may be used for a 4 pack; B flute for a 6 pack; and a C flute with a 12 pack. In addition, any suitable material and/or any configuration of that or those materials may be employed which satisfy the 3A and 5A drop test ISTA (International Safe Transit Association) protocols. Moreover, regular and irregular hole spacing may be employed to accommodate homogeneous and heterogeneous bottle combinations (to facilitate mixing-and-matching of different bottle sizes and shapes).
The separator may be constructed of any suitable material using any suitable manufacturing method. In the case of a fluted cardboard separator, a die on a die cut machine may be urged downwardly from above to cut the top surface of the planar sheet thereby forming the lines between adjacent folding flaps; the die cut machine may also be configured to (e.g., simultaneously) score the pivot (pre-fold) lines associated with the flaps.
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While the present invention has been described in the context of wine bottles, it will be appreciated that the invention is not so limited. For example, the separator may be used for any fragile items which include an upwardly extending neck portion such as ceramic or other compositions. Moreover, the various geometric features and dimensions may be adjusted to accommodate additional applications based on the teachings of the present invention.
A shipping container is provided, comprising: a vacuum molded base component having a plurality of cylindrical concave columns within which respective bottles are received; a substantially planar corrugated separator sheet having a plurality of receptors aligned with the axes of the columns and configured to slidably receive respective bottle necks associated with the bottles; a vacuum molded cap component for receiving the bottle necks therewithin; and an outer corrugated box within which the bottles, base component, separator, cap component components are securely disposed.
In an embodiment, the separator comprises a double fluted structure.
In an embodiment, at least one of the receptors comprises a through hole surrounded by an expandable circumferential component.
In an embodiment, the expandable circumferential component comprises a plurality of segments separated by pre-cut lines.
In an embodiment, the expandable circumferential component suitably exhibits rotational symmetry.
In an embodiment, the expandable circumferential component further comprises a pivot line; and at least one segment is configured to bend about the pivot line to facilitate the outward flaring of the segment as a bottle neck passes through the associated receptor.
In an embodiment, the pivot line comprises at least one of a creased line, a scored line, and a pre-folded line on an upper surface of the separator.
In an embodiment, the separator includes an even number of segments.
In an embodiment, the separator comprises visual indicia of orientation.
In an embodiment, the visual indicia of orientation comprises one of a textual and graphical orientation instruction.
In an embodiment, the visual indicia of orientation comprises one of a printed, embossed, and decal applied to a surface of a top surface of the separator.
A shipping container is provided, the shipping container being of the type including a vacuum molded base component having a plurality of cylindrical concave columns within which bottom portions of bottles are received, and a vacuum molded cap component within which top portions of the bottles are received. In an embodiment, the shipping container further includes a substantially planar separator sheet having a plurality of receptors aligned with the axes of the bottles and configured to slidably receive respective bottle necks therethrough.
In an embodiment, at least one of the receptors comprises: a central through hole; and an expandable region circumferentially disposed about the through hole.
In an embodiment, the expandable region comprises a plurality of flaps configured to bend about respective pivot lines in response to a bottle neck passing therethrough.
In an embodiment, the plurality of flaps are bounded by die cut lines.
In an embodiment, the central hole comprises a diameter of approximately 0.5 inches; and the expandable region is characterized by a tangential dimension in the range of about 2 to 4 inches.
In an embodiment, the die cut lines extend through the plane of the separator; and the pivot lines do not extend through the plane of the separator.
In an embodiment, the separator comprises a rectangular matrix of receptors spaced apart from each other by a distance in the range of 3 to 4 inches.
A method of packaging bottles of the type including a bottom portion and a neck is provided. The method includes: placing the bottom portions into a base component having a plurality of concave columns within which the bottom portions are received; sliding a substantially planar separator sheet over the bottle necks; placing a cap component over the bottles, the cap component comprising a plurality of recesses within which respective necks are received; and placing the assembled base component, bottles, separator sheet, and cap component into a box.
In an embodiment, the separator sheet comprises a plurality of holes each surrounded by foldable flaps bounded by preformed fold lines.
As used herein, the word “exemplary” means “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other implementations, nor is it intended to be construed as a model that must be literally duplicated.
While the foregoing detailed description will provide those skilled in the art with a convenient road map for implementing various embodiments of the invention, it should be appreciated that the particular embodiments described above are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. To the contrary, various changes may be made in the function and arrangement of elements described without departing from the scope of the invention.
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Number | Date | Country | |
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20190315564 A1 | Oct 2019 | US |