1. Technical Field of the Invention
The present invention relates generally to a lidded container for shipping, storing and handling a plurality of items. More particularly, the present invention relates to a lidded container for shipping, storing and handling a plurality of items, wherein the container includes a tear-away strip for opening the container and a lid deflection take-up means for preventing damage to the container during shipping, storing and handling.
2. Brief Description of the Related Art
In the shipping, storing and handling of prepackaged items, such as individually-wrapped reams of cut-size paper for use in photocopiers and desktop printers, it is customary for a plurality of such items to be shipped, stored and handled in a corrugated container. For example, an individual ream of cut-size paper may contain 500 sheets of 8½″×11″ printer paper, which are stacked and then bundled together with a paper (or polymeric) wrapping material.
A plurality of reams are then stacked (for example, 2 columns of 5 reams stacked in a side-by-side arrangement) in a rectangular container constructed from conventional corrugated material. The corrugated container serves to protect the reams of paper during transit and to bundle a plurality of individual reams together to simplify shipment. It is typical for the corrugated containers to include a lid, which typically telescopes over an open upper end of the container, thereby containing the reams therein to prevent spillage or damage thereto. The dimensions of the lidded container typically are only slightly larger than the contents stacked therein, and accordingly, such containers are considered “dense” in that very little void space is present therein. It is desirable, therefore, to provide a lidded container for shipping, storing and handling a plurality of items, such as, for example, prepackaged reams of paper.
It is typical for such corrugated containers to experience rough handling and shipping practices. For example, because corrugated containers containing reams of paper are heavy, they are oftentimes dropped inadvertently. Also, because the contents of such containers typically are not considered “breakable”, shippers and other handlers do not exert significant care in moving the containers about. Therefore, it is desirable to provide a container for shipping, storing and handling a plurality of items therein, wherein the container is constructed so as to inhibit the bursting thereof, and so as to minimize the extent to which the contents thereof are damaged during shipping, storing and handling.
This is difficult to achieve because most containers are formed from a foldable blank (i.e., flat) sheet of corrugated material that includes a plurality of flaps that are folded relative to one another to form sidewalls, a bottom wall and (in the case of the lid) a top wall. Adhesives, such as glues and tapes, as well as mechanical fasteners, such as staples, are used to affix the flaps to one another for the purpose of defining a rigid, box-like structure for the purposes herein described. Similarly, adhesives and/or mechanical fasteners are used typically to secure the lid over the open upper end of the container main body. During rough handling of the containers, it is common for the adhesives and mechanical fasteners to fail and/or tear from the corrugated material, thereby resulting in failure of the container and in potential spillage of the items contained therein. It is therefore desirable to provide a container that is adapted to withstand rough handling that may be encountered during typical shipping operations.
During shipping and storing, containers such as those related to the present invention, are stacked one atop another, sometimes forming a stack of 5 or more in height. The weight of the containers (and their contents) typically is large, especially for those containers on the very bottom of the stack. It is desirable, therefore, to provide not only a stackable container, but a stackable container that is resistant to failure loading, such as bursting. It has been observed that one cause leading to failure of the adhesives and/or mechanical fasteners used to construct the container is the large weight resting on those containers having additional containers stacked thereon.
This is especially problematic with the adhesive used to secure the lid to the container main body. As packed containers are stacked on one another, the weight of the stack creates significant shear stress in the adhesives securing the lids to the main bodies of the containers below the stack. It has been observed that under such circumstances, the adhesives fail under this shear stress, thereby detaching the lids from the container main bodies.
One solution to this problem is to use poly straps or films to encircle the lidded container for the purpose of holding the lid tight against the open upper end of the container main body. However, this solution also is problematic in that the straps and/or films needs to be disposed of once the containers are opened at their final destination. The straps and/or films also creates opportunities for the containers to be snagged on jutting objects encountered during shipping, storing and handling. It is desirable, therefore, to provide a lidded container wherein the lid is secured to the open upper end of the container main body without the use of straps, films or the like. It is also desirable to provide a lidded container having means for opening the container easily, when desired.
In view of the desire to provide a lidded container having a lid adhesively secured to the open upper end of the container main body, it is furthermore desirable to provide take-up means to inhibit failure of the adhesive during shipping, storing and handling.
Finally, it is desirable to provide a lid for use with a container main body, wherein the lid includes take-up means to inhibit failure of the container during shipping, storing and handling thereof.
The present invention provides a container for shipping, storing and handing a plurality of items, such as, for example, a plurality of reams of paper. The container includes a box-shaped main body portion and a lid that is sized and configured to fit over an open upper end of the main body. Sidewalls of the lid telescope over mating sidewalls of the main body and are adhered thereto, such as by adhesive or tape. One sidewall of the lid includes a tear strip defined by two parallel perforation lines running along the length of the middle of the sidewall. One end of the tear strip includes a tab for gripping by the user. Alternatively, a tear strip might be provided in additional sidewalls of the lid.
An elongated take-up region is provided along the length of at least one of the lid sidewalls and is oriented generally to be in parallel with the tear strip. The take-up region is positioned between the tear strip and the top wall panel of the lid and is in the form of a collapsible accordion structure defined by a plurality of fold lines. Compression of the container, such as by applying a downward force to the lid to urge the lid towards the main body, is absorbed by the take-up region, thereby minimizing shear stress in the adhesive used to adhere the lid sidewalls to the main body sidewalls.
According to one aspect of the present invention, a package according to a preferred embodiment of the present invention comprises a main body portion defined by a bottom wall and one or more upstanding sidewalls. The sidewalls cooperate to define an open top of the main body portion of the package. A lid is provided and is defined by a top wall and one or more downwardly-depending sidewalls. The lid is sized to fit over the open top of the main body portion of the package. At least one sidewall of the lid is secured to at least one sidewall of the main body portion. At least one sidewall of the lid includes a take-up strip positioned between the top wall and a distal edge of the at least one lid sidewall. The take-up strip permits movement of the lid relative to the main body portion without separating the at least one lid sidewall from the main body portion sidewall to which it is secured.
It is an object of the present invention to provide a lidded container for shipping, storing and handling a plurality of items, such as, for example, prepackaged reams of paper.
It is another object of the present invention to provide a container for shipping, storing and handling a plurality of items therein, wherein the container is constructed so as to inhibit the bursting thereof, and so as to minimize the extent to which the contents thereof are damaged during shipping, storing and handling.
It is yet another object of the present invention to provide a container that is adapted to withstand rough handling that may be encountered during typical shipping operations.
It is still another object of the present invention to provide not only a stackable container, but a stackable container that is resistant to failure loading, such as bursting
It is another object of the present invention to provide a lidded container wherein the lid is secured to the open upper end of the container main body without the use of straps, films or the like.
It is also an object of the present invention to provide a lidded container having means for opening the container easily, when desired.
It is furthermore an object of the present invention to provide take-up means to inhibit failure of the adhesive during shipping, storing and handling.
It is yet another object of the present invention to provide a lid for use with a container main body, wherein the lid includes take-up means to inhibit failure of the container during shipping, storing and handling thereof.
These and other objects, features and advantages of the present invention will become apparent to those of ordinary skill in the art from the description which follows, and may be realized by means of the instrumentalities and combinations particularly pointed out therein, as well as by those instrumentalities, combinations and improvements thereof which are not described expressly therein, but which would be obvious to those of ordinary and reasonable skill in the art.
The foregoing, as well as other objects and advantages of the invention, will become apparent from the following detailed description when taken in conjunction with the accompanying drawings, wherein like reference characters designate like parts throughout the several views, and wherein:
With reference to
Center panel 20 is divided by left and right foldlines 21a, 21b into bottom wall panel 22, and outwardly extending endwall panels 24. Endwall panels 24 are foldable relative to the bottom wall panel 22 about foldlines 21a, 21b to define a pair of opposing, upwardly-extending endwalls of the main body portion B of the container C.
Each side panel 40 is divided by left and right foldlines 23a, 23b into sidewall panels 42 and interior endwall wings 44. Sidewall panels 42 are foldable relative to the bottom wall panel 22 about foldlines 12, 14 to define a pair of opposing, upwardly-extending sidewalls of the main body portion B of the container C.
Main body portion B is constructed by first folding the endwall wings 44 upwardly relative to the sidewall panels 42 about foldlines 23a, 23b and then folding sidewall panels 42 upwardly relative to the bottom wall panel 22 about foldlines 12, 14 so that distal edges 44a, 44b of opposing endwall wings 44 meet near a midpoint of foldlines 21a, 21b, respectively.
Endwall panels 24 are then folded upwardly relative to the bottom wall panel 22 about foldlines 21a, 21b and adhesively secured to endwall wings 44, such as, for example, with one or more strips 46 of hotmelt adhesive applied to the endwall panels 24 prior to folding. Alternatively, hotmelt adhesive may be applied to the mating surface of the endwall wings 44 prior to folding the endwall panels 24. Double-sided adhesive tape may be used instead of hotmelt adhesive.
Optionally, pop-out handles 47 may be provided in each of the endwall panels 24 by providing a generally curved first die-cut slit 47a, a second die-cut slit 47b and cooperating foldlines 47c. Mating handle segments 48 may be defined in endwall wings 44 to be superimposed over pop-out handles 47 provided in endwall panels 24 when the main body portion is folded as described herein.
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Center panel 60 is divided by left and right foldlines 61a, 61b into top wall panel 62, and outwardly extending endwall panels 64. Endwall panels 64 are foldable relative to the top wall panel 62 about foldlines 61a, 61b to define a pair of opposing, upwardly-extending endwalls of the lid L of the container C.
Each side panel 80 is divided by left and right foldlines 63a, 63b into sidewall panels 82 and interior endwall wings 84. Sidewall panels 82 are foldable relative to the top wall panel 62 about foldlines 52, 54 to define a pair of opposing, upwardly-extending sidewalls of the lid L of the container C.
One sidewall panel 82 includes a pair of perforation lines running lengthwise generally parallel to foldline 52. Perforations 85 are of any conventional form and preferably cut through the sidewall panel 82 completely, although one or more of the perforations 85 may not extend through the entire thickness of the sidewall panel 82, but may instead only cut partially therethrough. Optionally, both sidewall panels 82 may include perforation lines 85.
Perforation lines 85 cooperate to define a tear strip 86 therebetween, one end 86a of which may include a pull-tab for the purpose of gripping, as will be described in greater detail below. Tear strip 86 is positioned near a centerline of the sidewall panel 82.
A first elongated take-up region 87a is provided in one of the sidewall panels 82 and runs generally parallel to the tear strip 86 provided therein. The take-up region 87a is positioned on the sidewall panel 82 such that the tear strip 86 is positioned between the take-up region 87a and foldline 52. The structure of the first take-up region 87a will be described in greater detail below.
A second elongated take-up region 87b is provided in other of the sidewall panels 82 and runs generally parallel to foldline 54. The take-up region 87b is positioned near a centerline of the sidewall panel 82, if no tear strip 86 is provided in the sidewall panel 82. The structure of the second take-up region 87b will be described in greater detail below.
Lid L is constructed by first folding the endwall wings 84 upwardly relative to the sidewall panels 82 about foldlines 63a, 63b and then folding sidewall panels 82 upwardly relative to the top wall panel 62 about foldlines 52, 54 so that distal edges 84a, 84b of opposing endwall wings 84 face one another.
Endwall panels 64 are then folded upwardly relative to the top wall panel 62 about foldlines 51a, 51b and adhesively secured to endwall wings 84, such as, for example, with one or more strips (not shown) of hotmelt adhesive applied to the endwall panels 64 prior to folding. Alternatively, hotmelt adhesive may be applied to the mating surface of the endwall wings 84 prior to folding the endwall panels 64. Double-sided adhesive tape may be used instead of hotmelt adhesive.
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It should be recognized by those of ordinary skill in the art that those aspects of the present invention that meet the objectives stated herein are provided substantially by the lid portion L of the container, and as such, it is within the spirit and the scope of the present invention to provide only the lid L for use on main body portions not otherwise described expressly herein.
While the invention has been described with reference to preferred embodiments, those skilled in the art will appreciate that certain substitutions, alterations and omissions may be made without departing from the spirit thereof. Accordingly, the foregoing description is meant to be exemplary only and should not be deemed limitative on the scope of the invention set forth herein.
The present application claims priority to U.S. Provisional Patent Application Ser. No. 60/633,015, filed 3 Dec. 2005 and hereby incorporates by reference the disclosure set forth therein.
Number | Date | Country | |
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60633015 | Dec 2004 | US |