The invention relates to cartons, and more particularly, to a carton for multiple articles having a dispenser having an easy opening feature.
Cartons for encasing multiple articles are useful for enabling consumers to obtain and transport a desired quantity of individual articles such as soft drinks or other beverages. When such a multiple-pack of articles is obtained, a consumer frequently desires to remove one article from the carton at a time and store the remaining articles in the carton. Thus, it can be appreciated that it would be desirable to have a carton with a dispenser that enables the removal of articles from the carton.
When the articles in the carton are cylindrical, and are disposed in the carton upon their sides so that they can roll, it is important that the articles be constrained such that the remaining articles do not roll out of the dispenser when one article is removed. It is also important that the dispenser provides an arrangement in which the articles are easily accessed. It is further often desirable when removing individual articles from a carton to be able to determine how many articles remain in the carton. Thus, it can be further appreciated that it would be desirable to have a carton with a dispenser that constrains remaining articles so that they do not undesirably roll from or otherwise exit the carton when one article is removed. It can also be appreciated that it would be desirable to have a carton with a dispenser that facilitates access to the articles. It can be still further appreciated that it would be desirable to be able to determine how many articles remain in a carton from which individual articles are removed. Since the cartons are used for containing a plurality of articles it is often desirable for a carrying handle to be provided. Such a handle is required to be sufficiently strong to lift the carton which may contain many cans or bottles.
A carton having a dispenser is disclosed in U.S. Pat. No. 6,484,903. The carton has a detachable trough defined by an endless weakened line formed in the top, end and side walls of the carton. The weakened line in the top wall extends across an overlap of two top panels. The dispenser can therefore be difficult to open since the user has to break through two plies of material to break the weakened line defining the dispenser. Such cartons can therefore be difficult to open and may also not be readily adaptable for containing more than two tiers or articles.
A carton comprising a dispenser and containing three tiers of articles is disclosed in U.S. Pat. No. 3,416,719, the opening disclosed by the carton extends up from a bottom wall and retaining tabs at the front of the carton prevent the articles from being undesirably dislodged. This causes the carton to be inefficient because it requires the consumer to lift the article up over the retaining tabs against downward force of the articles resting on top of it.
It is therefore an objective of the present invention to provide a carton and blank for forming the carton, that overcomes or at least reduces the problems of the abovementioned prior art.
A carton of the invention has a reinforced top wall and a dispenser for articles. The dispenser can be substantially detached or torn away from the upper corner of the carton to expose an endmost article for removal.
The invention provides a carton for cylindrical articles, such as cans, comprising a generally tubular structure formed from a top wall, a bottom wall, and a pair of side walls connecting together the top and bottom wall, the carton further comprising an end wall at each end of the carton which at least partially closes the ends of the tubular structure to secure the articles therein, the articles being arranged in at least two rows with one row of articles being in rolling contact with the bottom wall of the carton and the ends of all the articles being in abutment with respective ones of the side walls of the carton, at least one end of the carton having access means to allow removal of the carton contents, the access means being defined by a series of weakened lines in the top, side and end wall characterized in that the access means comprises initiating means to disrupt the top wall to deploy the access means, the top wall having both multi-ply and single ply areas and the initiating means being disposed in a single-ply area of the top wall thereby facilitating deployment of the access means. Preferably, each initiating means is defined by a pair of cooperative weakened lines which together form a displaceable tab.
According to a feature of the invention, the multi-ply top wall may be formed from two partially overlapping top wall panels, an initiating means being formed in each of the top panels and in regions where the top panels do not overlap. Preferably, the multi-ply top wall further comprises a reinforcing flap secured to one of said overlapping top wall panels and shaped correspondingly to the contour of the initiating means. It is also preferred that the multi-ply top wall further comprising a pair of hand apertures struck from each ply, each pair of hand apertures being aligned such that a reinforced carrying means is formed in the carton top wall.
According to another feature of the invention, the end wall may comprise at least one top end flap, the top end flap being hinged to a top wall panel adjacent a portion of the top wall panel in which an initiating means is defined. Preferably, the weakened lines defining the access means are disposed in the side walls and extend between said top wall and said end wall, said lines being curved concavely toward said end wall to partially expose opposite ends of the end most cans when said displaceable portion is detached from the carton. Preferably, the end wall comprises a pair of overlapping side end flaps and wherein weakened lines of the access means extend between the side walls of the carton entirely across the side end flaps thereby defining a retaining portion of the end wall.
Exemplary embodiments of the invention will now be described by way of example only with reference to the accompanying drawings in which:
Referring to
Reference numerals 72, 72a, 74, 74a, 78, 78a, 76, 76a, 80, 80a designate end flaps hinged to the ends of the primary panels 62, 64, 68, 66. More particularly, the end flaps 72, 72a are hingedly connected to the top wall panel 62 along fold lines 100, 100a respectively. The end flaps 74, 74a are hingedly connected to the side wall panel 64 along fold lines 102, 102a respectively. The end flaps 78, 78a are hingedly connected to the bottom wall panel 68 along fold lines 104, 104a respectively. The end flaps 76, 76a are hingedly connected to the side wall panel 66 along fold lines 106, 106a respectively. The end flaps 80, 80a are hingedly connected to the top wall panel 70 along fold lines 108, 108a respectively. The end flaps 72, 74, 78, 76 and 80 arranged along one (100, 102, 104, 106, 108) of the opposed longitudinal edges of the blank 12 form a composite end wall as shown at 91 in
A series of weakened lines of severance 24, 26, 30, 32 are provided in the first and second top wall panels 62, 70, the first and second side wall panels 64, 66 and the side end flaps 74, 76 respectively. The weakened lines of severance 24, 26, 30, 32 together with the tear lines 40, 42 define an access means 20. The weakened lines of severance 24, 26 provided in the first and second top wall panels 62, 70 also define finger tabs 55. The finger tabs 55 are shaped and structured to yield upon the application of pressure, thereby assisting a user of the carton with engaging the access means 20 thereby enabling the end of the carton 10 to be opened and thus enabling access to be gained to the cans ‘C’ contained within the carton 10.
Turning to the construction of the carton 10, a series of folding and gluing steps are required, which preferably can be performed in a straight line machine, so that the carton 10 and/or blank 12 are not required to be rotated or inverted to complete the construction. The folding process is not limited to that described below and can be altered according to particular manufacturing requirements.
To form an erected carton from the blank 12, glue or other adhesive is first applied to an inside face of the reinforcing flap 60 which is then folded along the weakened fold line 90 to lie in flat face contact with an inside face of to the first top wall panel 62. The blank 12 is folded about fold line 86, so that the inside face of the first side panel 64 contacts both the inside face of the bottom wall panel 68 and in part the second side wall panel 66. Glue is applied to the inside face of the second top wall panel 70 which is then folded about the fold line 88 to lie flat on the first top wall panel 62 and secured therewith. The outside face of the first top wall panel 62 may in part be varnish free so that the second top wall panel 70 can be secured by means of glue to the first top wall panel 62. In this way a three ply composite top wall is formed and a flat tubular carton can be provided to a manufacturing plant for further processing.
The flat tubular carton is then expanded into an open-ended tubular form. After cans are loaded through one or both of the open ends of the carton 10, the end flaps 72, 72a, 74, 74a, 76, 76a, 78, 78a, 80, 80a are folded to form the respective end walls to thereby close the ends of the carton. To form the end wall 90, the top and bottom end flaps 72/80 and 78 are folded to their respective vertical positions. Glue is applied to the outside faces of the end flaps 72/80 and 78, and then the side end flaps 74 and 76 are folded in the described sequence onto the top and bottom end flaps 72/80 and 74. This causes the side end flaps 74 and 76 to be glued to the top and bottom end flaps 72/80 and 74. This causes the side end flaps 74 and 76 to be glued to the top and bottom end flaps 72/80 and 74. In the closed position shown in
Also shown in
An erected carton is shown in
The arrangement and shape of the reinforcing flap, finger tabs 55 and tear lines 40, 42 provides an access means 20 being separable from the composite top wall of the carton 12 by tearing through only one or two plies of material, despite the top wall comprising three layers of paper board. The arrangement of the present invention therefore provides an access means 20 which requires considerably less pressure and work to employ than if the weakened lines of severance extended fully across the composite top wall and therefore were necessarily provided in each layer or ply. The rigidity of the composite top wall also assists when the pressure is applied to the finger tabs 55 and the weakened lines of severance 24, 26 are broken, the rigid composite top wall does not give or flex inward as downward pressure is applied to the finger tabs, this contributes to the easy deployment of the access means 20.
In the preferred embodiment illustrated, the tear lines 30 are of arcuate configuration. They are curved or arched concavely toward the end wall 90. The tear lines 30 intersect a frangible or otherwise weakened line 32 that is formed in the side end flaps 76 and 78 to extend between the side walls 64 and 66 entirely across the end wall 90, thereby defining a retaining portion 95 of the end wall 90.
The tight packing of the carton 12 and/or the rigidity of the composite top wall provides tension in the carton walls which may restrain the cans ‘C’ of the uppermost row from rolling free from the carton 12 when the access means 20 is first displaced or detached from the carton 12. The protruding part of the composite top wall may also assist in retaining the end most can of the uppermost row within the carton 12 as the access means 20 is deployed. Furthermore, the configuration of the weakened lines 32 provides an opening which is shaped such that cans ‘C’ of the lowermost rows are restrained from rolling free from the carton 12 by the remaining portion 95 of the end wall 90. Access to the end most cans ‘C’ of the lower most rows is however readily accommodated by the shape of the weakened lines 30 in the side wall panels 64, 66, which partially exposes the ends of said cans ‘C’ as shown in
A series of weakened lines of severance 224, 226, 230, 232 are provided in the first and second top wall panels 262, 270, the first and second side wall panels 264, 266 and the side end flaps 274, 276 respectively. These weakened lines of severance 224, 226, 230, 232 together with the tear lines 240 together form a severable connection that defines an access means 220. The weakened lines of severance 224, 226 provided in the first and second top wall panels 262, 270 also define finger tabs 255. The finger tabs 255 are shaped and structured to yield upon the application of pressure.
A folding process similar to that for the first embodiment is used to assemble the carton 210 of the second embodiment. When the carton 210 is erected, the weakened lines 224, 224 of severance in the top wall panels 262, 270 are aligned, and extend partially coincidentally, with each other to allow the part of the severance connection in the top wall to extend entirely across the two ply area of the top wall. The handle reinforcing strip or flap 260 is free of weakened line. However, the tear line 240 that is aligned, and extends coincidentally, with the fold line 290 is disposed continuous with the weakened line 224 of severance in the top wall panel 262 to assist easy separation of the access means 220 from the remainder of the carton 210.
To open the carton 210, the initiating means in the form of finger tabs 255, 255 are pressed by fingers to break the weakened lines 226, 226. Then, the access means 220 is pulled forwardly away from the remainder of the carton 210. By this means, the weakened lines 224, 224, 230, 230 are broken and the access means 220 is pivoted forwardly and downwardly about the weakened lines 232, 232. Further pivoting the access means 220 allows the tear line 240 to break as well as the top wall panel 262 to be peeled and detached from the reinforcing flap 260. Finally, the access means 220 are severed from the carton 210 along the weakened lines 232, 232. A fully opened carton 210 is illustrated in
Modifications may be made in the foregoing without departing from the scope of the claimed invention. For example, the access means may be formed at each end of the carton according to the invention and in other embodiments it is envisaged that the tear lines 40, 42 may be perforated lines, slits or cuts. It should be also appreciated that as used herein, directional references such as “top”, “bottom”, “end”, “side”, “upper” and “lower” do not limit the respective panels to such orientation, but merely serve to distinguish these panels from one another.
It should be further appreciated that any reference to hinged or foldable connection should not be construed as necessarily referring to a single fold line only: indeed, it is envisaged that hinged connection can be formed from one or more of one of the following, a score line, a frangible line or a fold line, without departing from the scope of invention. It should be further appreciated that each of the weakened lines of severance and the tear lines as referred to in this application may comprise a cut line or frangible line that includes, but is not limited to, a line of perforations, a line of short slits, a line of half cuts, a single half cut, any combination of slits, score lines, and half cuts, or the equivalent, as will be understood by those skilled in the art. It should be further appreciated that each of the fold lines as referred to in this application may comprise a frangible line that includes, but is not limited to, a score line, a line of perforations, a line of short slits, a line of half cuts, any combination of slits, score lines, and half cuts, or the equivalent, as will be understood by those skilled in the art.
This application claims priority to U.S. Provisional Application No. 60/651,156, filed Feb. 9, 2005, the entirety of which is incorporated herein by reference.
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