This invention relates generally to cartons, and more particularly, to cartons with a handle.
Cartons that encase multiple articles such as soft drink cans or bottles are useful to enable consumers to transport and store the articles. Such cartons need well-designed handles to minimize the amount of material that is used to make the carton. For example, a well-designed handle can prevent a carton made with thinner or weaker material from tearing as the handle is engaged to carry the carton of articles. By using less material, the cost of cartons can be reduced.
The present invention overcomes the shortcomings of the prior art by providing a carton for enclosing an arrangement of articles. The carton includes a tubular structure and a handle. The tubular structure includes a top wall and a first side wall and a second side wall that are hingedly connected to opposed edges of the top wall. Opposed ends each of the articles in the arrangement of articles are adjacent the first side wall and the second side wall, respectively. The handle is at least partially formed in each of the top wall, the first side wall, and the second side wall. Further, the handle is formed in the carton adjacent to an open space between two articles of the arrangement of cylindrical articles. The handle includes a handle flap having a main portion formed from part of the top wall, a first gusset and a second gusset formed from part of the top wall, and a first end portion formed from part of the first side wall. The main portion is hingedly connected to the first gusset along a first fold line, the first gusset is hingedly connected to the second gusset along a second fold line, and the second gusset is hingedly connected to the first end portion along a third fold line that hingedly connects the top wall to the first side wall. As such, the handle is configured to fold around an adjacent article and reduce stresses in the carton when the handle is engaged.
The foregoing has broadly outlined some of the aspects and features of the present invention, which should be construed to be merely illustrative of various potential applications of the invention. Other beneficial results can be obtained by applying the disclosed information in a different manner or by modifying the disclosed embodiments. Accordingly, other aspects and a more comprehensive understanding of the invention may be obtained by referring to the detailed description of the exemplary embodiments taken in conjunction with the accompanying drawings, in addition to the scope of the invention defined by the claims.
As required, detailed embodiments of the present invention are disclosed herein. It must be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms, and combinations thereof. As used herein, the word “exemplary” is used expansively to refer to embodiments that serve as illustrations, specimens, models, or patterns. The figures are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. In other instances, well-known components, systems, materials, or methods have not been described in detail in order to avoid obscuring the present invention. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention.
Referring now to the drawings, wherein like numerals indicate like elements throughout the several views, the drawings illustrate certain of the various aspects of exemplary embodiments of a carton. In the embodiments detailed herein, the term carton refers, for the non-limiting purpose of illustrating the various features of the invention, to a container for enclosing, carrying, and dispensing articles, such as beverage cans. However, it is contemplated that the teachings of the invention can be applied to various containers. Generally described, exemplary cartons include a tubular structure that is defined by a top wall, first and second side walls, and a bottom wall and includes end closure structures that define end walls at each of the open ends of the tubular structure.
Referring to the exemplary embodiment illustrated in
The blank 100 includes a sheet of suitable substrate. It is to be understood that, as used herein, the term “suitable substrate” includes all manner of foldable sheet material such as paperboard, corrugated board, cardboard, plastic, combinations thereof, and the like. In the illustrated embodiments, the unitary blank 100 is used to form a single carton 200. However, it should be recognized that two or more blanks may be employed, for example, to provide the carton structure described in more detail below.
In the exemplary embodiment, the blank 100 is configured to form a carton for packaging an exemplary arrangement of exemplary articles C. For example, the arrangement is a matrix including rows and columns such as a 2×6 arrangement of articles. The blank can be alternatively configured to form a carton for packaging other articles and/or different arrangements of articles.
As used herein, the term “fold line” refers to all manner of lines that define hinge features of the blank, facilitate folding portions of the blank with respect to one another, or otherwise indicate optimal panel folding locations for the blank. A fold line is typically a scored line, an embossed line, or a debossed line.
As used herein, the term “severance line” refers to all manner of lines that facilitate separating portions of the substrate from one another or that indicate optimal separation locations. Severance lines may be frangible or otherwise weakened lines, tear lines, cut lines, or slits.
It should be understood that severance lines and fold lines can each include elements that are formed in the substrate of the blank including perforations, a line of perforations, a line of short slits, a line of half-cuts, a single half-cut, a cut line, an interrupted cut line, slits, scores, any combination thereof, and the like. The elements can be dimensioned and arranged to provide the desired functionality. For example, a line of perforations can be dimensioned or designed with degrees of weakness to define a fold line and/or a severance line. The line of perforations can be designed to facilitate folding and resist breaking, to facilitate folding and facilitate breaking with more effort, or to facilitate breaking with little effort.
Referring to
End flaps are hingedly connected to opposite ends of each primary panel along fold lines that extend parallel to the longitudinal axis. The end flaps can be folded and secured to form end closure structures at respective open ends of the tubular structure of the carton 200 and thereby define the end walls of the carton 200. The blank 100 is substantially symmetric such that the end flaps that are hingedly connected to the opposite ends of each primary panel are substantially similar. Accordingly, the end closure structures of the carton 200 are substantially identical and like references have been used with a suffix “a” or “b” to distinguish one end of the carton 200 from the other. The description of an element or group of elements having a suffix “a” is suitable for a like-numbered element or group of elements having a suffix “b”. In certain instances, for clarity, only one of the like elements may be described unless a description of the other or both of the like elements is useful for understanding the invention.
First side end flap 130a is hingedly connected to first side panel 110 along fold line 140a, top end flap 132a is hingedly connected to top panel 112 along fold line 142a, second side end flap 134a is hingedly connected to second side panel 114 along fold line 144a, and bottom end flap 136a is hingedly connected to bottom panel 116 along fold line 146a.
The blank 100 further includes a severance line 150 that defines a detachable portion 152 of the blank 100. The detachable portion 152 is dimensioned and positioned such that, as the blank 100 is erected to form the carton 200, the detachable portion 152 can be at least partially separated from the carton 200 to provide an opening in the carton through which articles C can be dispensed.
The detachable portion 152 can have any size or shape so as to provide a suitable opening for dispensing articles C and the illustrated version is provided as a non-limiting example. The exemplary detachable portion 152 is defined along an end edge of the blank 100 so as to include portions of end flaps 130b, 132b, 134b and portions of panels 110, 112, 114. Generally described, the detachable portion can include portions of one or more panels or end flaps.
The severance line 150 includes multiple severance line segments that extend across each of the panels and end flaps. Severance line segments 150a, 150b extend across the first and second end flaps 130b, 134b from the distal edges of the first and second end flaps 130b, 134b to the fold lines 140b, 144b, respectively. Severance line segments 150c, 150d extend across the first and second side panels 110, 114 from the fold lines 140b, 144b to the fold lines 120, 122, respectively. A severance line segment 150e extends across the top panel 112 between the fold lines 120, 122. A curved portion of severance line segment 150e and fold lines 156, 158 define a tear initiation tab 154. The severance line segments define the substantially continuous severance line 150. The exemplary severance line 150 and detachable portion 152 are symmetrical, although symmetry is not requisite for implementation.
It should be understood that the curvature or path of the severance line 150 is a design decision that can be determined according to the desired manufacturing process, aesthetic features, or functionality requirements. For example, the curvature of the severance line can be determined in part to optimally retain articles C in the carton and dispense articles C from the carton. Optionally, the path of the severance line 150 can be designed to facilitate the application of adhesive to the end flaps and panels of the carton.
Referring to
The handle flap 162a is now described in further detail. It should be understood that the handle flap 162b is substantially similar to the handle flap 162a (the handle 160 is substantially symmetric about a longitudinal axis or severance line 164) and thus the description of handle flap 162a is applicable to handle flap 162b. Also, since the handle flap 162a is substantially symmetrical about a transverse axis (parallel to and halfway between fold lines 120, 122), like element numbers are used to identify like elements on each side of the transverse axis. For example, element numbers 176a, 178a, 180a, 182a, 184a identify like elements at each of opposed ends of the handle flap 162a.
Referring to
Fold lines 182a, 184a associated with one end of the handle flap 162a (adjacent fold line 120) are now described in further detail although the description is applicable to the fold lines 182a, 184a at the opposed end (adjacent fold line 122) of the handle flap 162a since the handle flap 162a is substantially symmetrical about a transverse center axis disposed perpendicular to the severance line 164. Fold line 184a extends between a point P1 on the fold line 120 and a point P2 on the severance line 164. Fold line 182a extends between the point P2 and a point P3 on the fold line 170a. The point P1 is preferably located at the intersection of fold lines 120 and 170a.
Generally, the fold lines 182a, 184a are configured such that the handle flap 162a places the outer gussets 180a and the end portions 176a in contact with an article C in the carton 200, as described in further detail below. In the embodiment of
Referring to
Erecting the carton 200 from the blank 100 may be accomplished with the folding operations as described herein. The operations can be performed by automatic erecting machinery and/or manually. The method of performing the erecting process is not limited to the exemplary method described herein. Particularly, the order of the steps can be altered according to manufacturing requirements, steps may be added or omitted, and the means for securing components to one another may vary. The surfaces of sheet material may be secured together by suitable means for securing, such suitable securing means including tape, staples, interlocking folds, VELCRO®, glue or other adhesives, combinations thereof, and the like.
Referring to
The tubular structure can thereafter be erected from the collapsed tubular structure such that the primary panels form the was of the tubular structure. Referring to
Continuing with
The cartons illustrated in the drawings are adapted to hold a group of similarly dimensioned, preferably cylindrical articles C (such as cans or bottles), in a matrix arrangement of rows (or tiers) and columns. Here, the articles in each row are disposed on their sides in a side-by-side parallel fashion with the ends of the articles disposed alongside the side walls 210, 214 of the carton 200. The sides of the articles are disposed alongside the top wall 212, bottom wall 216, and end walls 218, 220 of the carton 200. The handle 160 is positioned with respect to an open space defined by the sides of two adjacent articles such that a user can fold the handle 160 into the carton 200 as described in further detail below.
Referring to
Continuing with
Through well-placed fold lines 182a, 184a, the gussets 178a, 180a and end portions 176a provide a structure that increases the strength of the handle 160. The upward lift that is applied to the main portion 174a of the handle 160 and top wall 212 is supported by the contact of the outer gussets 180a and end portions 176a with the ends of the adjacent article C. As such, the forces that are applied through engaging the handle 160 and lifting the carton 200 are distributed and less likely to cause tearing of the carton 200. Similarly, the arched severance lines 166, 168 are configured to distribute stresses along the length thereof, instead of concentrating stress at a termination point.
Turning now to
The present invention has been illustrated in relation to particular embodiments that are intended in all respects to be illustrative rather than restrictive. Those skilled in the art will recognize that the present invention is capable of many modifications and variations without departing from the scope of the invention. For example, as used herein, directional references such as top, base, bottom, end, side, inner, outer, upper, middle, lower, front, and rear do not limit the respective walls of the carton to such orientation, but merely serve to distinguish these walls from one another. Any reference to hinged connection should not be construed as necessarily referring to a junction including a single hinge only; indeed, it is envisaged that hinged connection can be formed from one or more potentially disparate means for hingedly connecting materials.
The above-described embodiments are merely exemplary illustrations of implementations set forth for a clear understanding of the principles of the invention. Variations, modifications, and combinations may be made to the above-described embodiments without departing from the scope of the claims. All such variations, modifications, and combinations are included herein by the scope of this disclosure and the following claims.
This application claims the benefit of U.S. Provisional Application No. 61/454,310, filed Mar. 18, 2011, which is incorporated herein by reference in its entirety.
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3593849 | Helms | Jul 1971 | A |
4728026 | Schuster | Mar 1988 | A |
4784316 | Crouch | Nov 1988 | A |
4785991 | Schuster | Nov 1988 | A |
4966324 | Steel | Oct 1990 | A |
4972991 | Schuster | Nov 1990 | A |
4981253 | Quaintance | Jan 1991 | A |
20070017962 | Russ | Jan 2007 | A1 |
Number | Date | Country |
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WO 2006127734 | Nov 2006 | WO |
WO 2009082724 | Jul 2009 | WO |
Entry |
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International Search Report for PCT/US2012/029566 mailed Jun. 20, 2012. |
Number | Date | Country | |
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20120312866 A1 | Dec 2012 | US |
Number | Date | Country | |
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61454310 | Mar 2011 | US |