1. Field of Invention
The present invention relates generally to a collapsible shipping container utilizing standard box making equipment manufactured from material such as paper, corrugated board, and corrugated plastic, and in particular, to a package that employs a tensioned film system, that retains a product between a film layer and a wall of the package.
2. Brief Description of Prior Art
The prior art includes numerous variations of boxes that employ a stretch film to hold a product within the box. However, there is still a need to design a box that provides the combination of low cost, ease of manufacture, ease of transport to an end user, ease of use from the end user's standpoint, and which provides a required level of cushioning.
The present invention relates to a container formed from a pair of end caps or trays and having an internal object retention member. In accordance with a first broad aspect of the invention, a packaging structure for holding an object securely against a rigid backing includes a retention member, a flexible film material, a tray member, and an end cap member. The retention member has a substantially rigid panel with a pair of longitudinal folding side panels and a pair of latitudinal folding side panels separated from a base panel by fold lines. The base panel has an upper side and a lower side. The longitudinal folding side panels are folded to a position where the longitudinal folding side panels are under and parallel to the base panel, and the latitudinal side panels are vertical relative to a horizontal orientation of the base panel. The tray member has two latitudinal vertical side panels, two longitudinal vertical side panels, and a tray base panel. The film extends across the pair of longitudinal folding side panels and the upper side of the base panel and is and fixed at each of two opposing ends to one of the pair of longitudinal folding side panels. Means is provided for securing the flexible film to the pair of longitudinal folding side panels. the retention member is positioned within the tray member, and the tray member is positioned within the end cap member. The end cap member has two longitudinal vertical end cap side panels, two latitudinal vertical end cap side panels, and an end cap base panel.
In accordance with another embodiment of the invention the end cap member has kick plate means that has peripheral dimensions to form at least a pair of parallel channels. The channels are dimensioned to receive and retain the retention member latitudinal side panels.
In accordance with a further embodiment of the invention, the end cap member has kick plate means which has peripheral dimensions to form two pairs of parallel channels. One pair of the channels is dimensioned to receive and retain at least the retention member latitudinal side panels and the other pair of the channels is dimensioned to receive and retain the tray member longitudinal vertical side panels.
In accordance with an additional embodiment of the invention, the end cap member has kick plate means which has peripheral dimensions to form two pairs of parallel channels. One pair of the channels is dimensioned to receive and retain at least the retention member latitudinal side panels and the tray member latitudinal vertical side panels, and the other pair of the channels is dimensioned to receive and retain the tray member longitudinal vertical side panels.
In accordance with still another embodiment of the invention, the end cap has two vertical side panels, each two each of which includes a first vertical section and a second vertical section. The first vertical section is contiguous with the end cap base panel, and the second vertical section is contiguous with the first vertical section. The second vertical section is folded to a position overlying and interior of the first vertical section. The end caps vertical sections further includes a first horizontal section and a second horizontal section. The first horizontal section is contiguous with the second vertical section and overlies the end cap base panel. The second horizontal section is folded to a position overlying the first horizontal section and has a peripheral edge substantially parallel to the second vertical section and spaced there from to form one channel of at least one pair of parallel channels. Each of the at least one pair of parallel channels is dimensioned to receive and retain one of the retention member latitudinal side panels.
In accordance with still another embodiment of the invention, the end cap has two vertical side panels, each two each of which includes a first vertical section and a second vertical section. The first vertical section is contiguous with the end cap base panel, and the second vertical section is contiguous with the first vertical section. The second vertical section is folded to a position overlying and interior of the first vertical section. The end caps vertical sections further includes a first horizontal section and a second horizontal section. The first horizontal section is contiguous with the second vertical section and overlies the end cap base panel. The second horizontal section is folded to a position overlying the first horizontal section and has a peripheral edge substantially parallel to the second vertical section and spaced there from to form one channel of at least one pair of parallel channels. Each of the at least one pair of parallel channels is dimensioned to receive and retain one of the retention member latitudinal side panels and a tray member latitudinal side panel.
In accordance with a further embodiment of the invention, each of the second horizontal sections has a pair of peripheral edges substantially parallel to two of the end cap vertical end cap side panels and spaced there from to form longitudinal channels between the of the second horizontal section's peripheral edges and an end cap member longitudinal side panel, and each of the longitudinal channels is dimensioned to receive and retain one of the tray member longitudinal side panels.
In accordance with a further embodiment of the invention, a method is provided for assembling and filling a package and retaining an object securely against a rigid backing within the package. The package includes a retention member that has a substantially rigid panel with a pair of longitudinal folding side panels and a pair of latitudinal folding side panels separated from a base panel by fold lines. The base panel has an upper side and a lower side, and a flexible film material extends across the pair of longitudinal folding side panels and the upper side of the base panel and is fixed at each of two ends to one of the pair of longitudinal folding side panels. The package further includes a tray member that has two latitudinal vertical side panels, two longitudinal vertical side panels, and a tray base panel. The package further includes an end cap member that has two longitudinal vertical end cap side panels, two latitudinal vertical end cap side panels, and an end cap base panel. The steps of the method include inserting an object between the flexible film and the retention member base panel, folding the pair of longitudinal folding side panels to a position where the the longitudinal folding side panels are under and parallel to the base panel, the base panel and the longitudinal folding side panels, folding the latitudinal side panels vertically relative to a horizontal orientation of the base panel, positioning the retention member within the tray member, and positioning the tray member within the end cap member.
In accordance with an additional embodiment of the invention, the package end cap member has kick plate means that have peripheral dimensions to form at least a pair of parallel channels. The channels are dimensioned to receive and retain the retention member latitudinal side panels, comprising the step of positioning the tray within the end cap with the retention member latitudinal side panels in the channels.
In accordance with another embodiment of the invention, each of the at least one pair of parallel channels is dimensioned to receive and retain one of the retention member latitudinal side panels and a tray member latitudinal side panel and the method further includes positioning one of the retention member latitudinal side panels and a tray member latitudinal side panel in a channel.
In accordance with another embodiment of the invention, each of the second horizontal sections has a pair of peripheral edges substantially parallel to two of the end cap vertical end cap side panels and spaced there from to form longitudinal channels between the of the second horizontal section's peripheral edges and an end cap member longitudinal side panel, and each of the longitudinal channels is dimensioned to receive and retain one of the tray member longitudinal side panels. The method further includes the step of positioning one of the tray member longitudinal side panels in each of the longitudinal channels.
In accordance with an additional embodiment of the invention the packaging structure further comprises each two of the end cap vertical end cap side panels having a first vertical section and a second vertical section. The first vertical section is contiguous with the end cap base panel, and the second vertical section is contiguous with the first vertical section. The structure further includes a first horizontal section and a second horizontal section, wherein the first horizontal section is contiguous with the second vertical section. The method further includes the steps of folding the first horizontal section to a position overlying the end cap base panel, folding the second vertical section to a position overlying and interior of the first vertical section; folding the second horizontal section to a position overlying the first horizontal section such that it has a peripheral edge substantially parallel to the second vertical section and spaced there from to form one channel of the at least one pairs of parallel channels. Each of the at least one pair of parallel channels is dimensioned to receive and retain one of the retention member latitudinal side panels.
The invention will be described with the accompanying drawings, in which:
It is advantageous to define several terms before describing the invention. It should be appreciated that the following definitions are used throughout this application. Where the definition of terms departs from the commonly used meaning of the term, applicant intends to utilize the definitions provided below, unless specifically indicated.
For the purposes of the present invention, the term “box” refers to an enclosure of any size and shape formed from a single or multiple bonded corrugated sheet that has the appropriate score lines, as well known in the art. The terms package and container are used herein interchangeable with the term “box”.
For the purposes of the present invention, the term “clearance space” as used herein, refers to the space between flap side edges and an adjacent side wall, when the box is in its erected configuration.
For the purposes of the present invention, the term “kick plate” as used herein refers to a structure that butts up against a side wall member and prevents the side wall member from moving inward.
For the purposes of the present invention, the term “end cap” as used herein refers to a tray structure that includes a planar base and four side walls contiguous with, and at a right angle to the planar base.
For the purposes of the present invention, “longitudinal” and “latitudinal” are used to refer to two series of sides of a square or rectangle. Longitudinal refers to one set of parallel sides, while latitudinal refers to the other set of parallel sides. Longitudinal and latitudinal sides may be switched.
For the purposes of the present invention, “vertical” and “horizontal” as used herein refer to a spatial configuration in which the center panel of the support member, and the base of the tray into which the support member is inserted, are horizontal. The terms are used to signify relative positions of various components, rather than a spatial position relative to the earth, the floor of a building, etc. The vertical walls 411 and 421 of the end cap 400 form side walls of the end cap.
For the purposes of the present invention, the terms “corrugated paper”, “corrugated plastic”, and the term “corrugated board” are used interchangeably, and are inclusive of single, double and triple wall corrugated materials for shipping boxes, as well known in the art.
For the purposes of the present invention, the term “double wall” refers to a corrugated material that has two corrugated layers separated by a flat sheet and having two outer flat sheets. Containers of the present invention preferably are formed, at least in part, from double wall corrugated.
For the purposes of the present invention, the term “fold line” as used herein refers to a juncture between two adjacent panels about which the panels are folded. Fold lines are typically formed by crushing or otherwise scoring the corrugated board, as well known in the art.
For the purposes of the present invention, the term “narrower” as used herein refers to a dimension of a first panel that is less than the dimension of another panel, where both panels are measured in the same direction.
For the purposes of the present invention, the term “score lines” may also be referred to as “fold lines” or “crush lines”. Forming fold lines in blanks from which boxes are made is well known in the art, and any desired one of the well known techniques can be used.
For the purposes of the present invention, the term “score” refers to the manufacturing method that linearly crushes the corrugated sheet to enable a fold line to be formed, as well known in the art.
For the purposes of the present invention, the terms “side panels” the side wall panels of a rectangular box, as for example, 111, 113, 413, and 415 of
The terms “end panels” and “side panels” are terms of convenience and are used to identify a first pair of opposing side walls and a second pair of opposing side walls. For the purposes of the present invention, the term “flap” and/or “flaps” may be used when referring to end panels.
For the purpose of the present invention, the term “retention” refers to the combination of a film structure that attaches to a paneled member for securing objects during shipping. The term “retention pack” is used interchangeably with “support member”, to indicate a retention structure that holds an object in place within a package and supports the object within the package.
For the purpose of the present invention, the term “pouch” refers to a film structure that in combination with a support panel encloses and forms a region for retaining an object, as seen for example, in
For the purpose of the present invention, the term “film”, refers to structure that can be an anti-static/static dissipating material, and is preferably a material that will hold a product under tension when stretched. The material tends to return to its un-stretched form rather than to deform or elongated to a longer dimension, and thus, will hold a product firmly, and under tension. The product is accordingly not free to move, or rattle around in the box. The film is resilient and returns to its original shape when after being subjected to a vibration or jarring action. The film thus cushions and cradles the object being transported. The method in which films are joined to the walls of the box can include, by way of example, welding, heat activated adhesives, co-adhesives, pressure sensitive tapes, and hot melt glues. Epoxies and silicone adhesive can be used. Pressure sensitive tapes for the pouch structure are provided with a release film which is removed when the pouch is to be sealed closed.
For the purpose of the present invention, the terms “fixing” and “securing”, refers to the attaching of a panel of one blank to a panel of another blank, or the attaching of a retaining or support member such 100 to a tray, or attaching a film to a panel. Means for attaching of two members together can by any of the well known means, such as adhesives, including for example, a hot melt glue, heat activated adhesives, co-adhesives, or pressure sensitive adhesives, and by other known means such as staples, adhesive tapes and the like.
The term “substantially” as referred to herein indicates a near, close to relationship, not significantly departing from a particular quality. For example, while 50% would not be substantially 100%, but a value that provides the desired result though not exactly equal to the ideal or optimum value, would be considered to be substantially the exact, ideal, or optimum value. A substantially vertical article could depart from the perpendicular relationship with a horizontal plane, but would not depart to the extent that it begins to lose its stability or requires an external support to be self supporting.
There are multiple advantages to the suspension packaging system of the present invention. The product provides exceptional cushioning and vibration protection while greatly reducing warehouse space by eliminating the need for inner cushioning materials which in turn saves labor, and reduces material and storage costs.
The support film of the present invention is preferably a plastic that stretches up to about 40% with high load retention, that is, without distorting or deforming, or exceeding its yield point. The films can be any that meet the criteria set forth herein, including but not limited to anti-static/static dissipative films.
The film advantageous to most embodiments is a transparent urethane approximately 3 mils thick. The urethane film's unique properties of stretch ability and memory enable the film to return to its original dimensions. This enables the film to absorb repeated shock and vibration encountered during handling and shipping.
The packaging structure according to the present invention includes a substantially rigid panel 100, as shown in
The substantially rigid panel 100 includes fold lines 101, usually scored, crimped or perforated, which are generally parallel the side edges of the panel. These fold lines 101 thus define longitudinal folding side panels 113, latitudinal folding side panels 111 and a center panel 121.
A flexible film material 131 is superimposed on the surface of the rigid panel 100, and extends over the longitudinal folding side panels 113 and center panel 121. This flexible film material 131 is preferably a transparent and elastomeric polymer such as PVC (polyvinyl chloride) or polyurethane ester.
The flexible film 131 is secured to the longitudinal folding side panels 113, preferably on the underside of the side panels 113, by means of an adhesive, staples or the like, as well known in the art. The flexible film 131 remains unsecured to the base or center panel 121, enabling the object 301 (
When the longitudinal folding side panels 113 are folded adjacent to the underside of the center panel 121, as illustrated in
To prevent the latitudinal folding side panels 111 from collapsing inward toward the center panel 121 and to provide structural reinforcement, the retention pack 140 is mated with an end cap 400, having a kick plate type of structure 418 as illustrated in
The blank for the kick plate 400 is illustrated in
The folded retention pack 140 of
In a preferred embodiment, the retention pack 140 is used with the two channel end cap 400. The latitudinal folding side panels 111 and latitudinal tray walls 413 mate with the kick plate channel 431 such that the latitudinal folding side panels 111 and latitudinal tray walls 413 are between the outer kick plate wall 429 and the inner base wall 425. The inner base wall 429 can have additional layers to create a deeper channel if required to meet a specific application. The latitudinal folding side panels 111 and latitudinal tray walls 413 fit snuggly within the channel 431 between the inner base wall 429 and the inner base wall 425 so that it cannot move, effectively locking the retention pack and tray 410 in place. When using a two channel end cap 400 the longitudinal tray walls 415 are not as tall as the latitudinal folding side panels 111 and latitudinal tray walls 413, so that the longitudinal tray walls 415 do not interfere with the kick plate 400 when mated with the retention pack 140 and tray 410.
The retention pack is illustrated from a top view within the tray 410 in
In
In an alternative embodiment, the retention pack is used with a four channel end cap 900 is illustrated in
In another alternative embodiment of a four channel end cap 1000, the retention pack is used with a four channel folded kick plate that includes folding sections 1027 and 1029. When a kick plate with four channels is used, both the longitudinal tray walls 415 and the latitudinal tray walls 413 will be mated. In this embodiment, the longitudinal tray walls 415 can optionally be approximately the same height as the latitudinal folding side panels 111 and latitudinal tray walls 413, so that all walls are mated with the folded kick plate containing end cap 1000. This alternative embodiment is similar to the two channel embodiment illustrated in
The blank for an alternate end cap 1000 and perspective, partially folded view of the end cap 1000 are illustrated in
Although the present invention has been fully described in conjunction with several embodiments thereof with reference to the accompanying drawings, it is to be understood that various changes and modifications may be apparent to those skilled in the art. Such changes and modifications are to be understood as included within the scope of the present invention as described by the appended claims, unless they depart there from.
Broad Scope of the Invention
While illustrative embodiments of the invention have been described herein, the present invention is not limited to the various preferred embodiments described herein, but includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of aspects across various embodiments), adaptations and/or alterations as would be appreciated by those in the art based on the present disclosure. The limitations in the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. For example, in the present disclosure, the term “preferably” is non-exclusive and means “preferably, but not limited to.” In this disclosure and during the prosecution of this application, means-plus-function or step-plus-function limitations will only be employed where for a specific claim limitation all of the following conditions are present in that limitation: a) “means for” or “step for” is expressly recited; b) a corresponding function is expressly recited; and c) structure, material or acts that support that structure are not recited. In this disclosure and during the prosecution of this application, the terminology “present invention” or “invention” may be used as a reference to one or more aspect within the present disclosure. The language present invention or invention should not be improperly interpreted as an identification of criticality, should not be improperly interpreted as applying across all aspects or embodiments (i.e., it should be understood that the present invention has a number of aspects and embodiments), and should not be improperly interpreted as limiting the scope of the application or claims. In this disclosure and during the prosecution of this application, the terminology “embodiment” can be used to describe any aspect, feature, process or step, any combination thereof, and/or any portion thereof, etc. In some examples, various embodiments may include overlapping features. In this disclosure, the following abbreviated terminology may be employed: “e.g.” which means “for example.”
This patent application is a continuation in part of U.S. patent application Ser. No. 12/570,755, filed Sep. 30, 2009, which application claims the benefit of provisional patent application 61/194,663, filed Sep. 30, 2008, and having the title “Suspension Packaging”, the disclosures of which are incorporated herein by reference, as though recited in full.
Number | Date | Country | |
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61194663 | Sep 2008 | US |
Number | Date | Country | |
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Parent | 12570755 | Sep 2009 | US |
Child | 12981187 | US |