1. Field of the Invention
The present invention relates generally to a minimalist can wrap with open ends where the cans are held from falling out by a retaining flap at the top and bottom of each side panel that holds the adjacent outside can in place. These retaining flaps are joined together by a tuck-in flap which is wedged between the side panel and the adjacent outside can and holds the top and bottom retaining flaps in proper position.
2. Prior Art
Can wraps with open ends have been used in the past. Can wraps with open ends which use various types of webbing to prevent the cans from falling out of the open ends have been used for some time.
When fabricating a can wrap from a paperboard blank, opposite sides of the blank are conventionally attached to each other by glue or by mechanical locks to form the bottom panel of the can wrap. In the case of the can wrap, flaps attached to the side of the blank typically are overlapped and engaged with one another by mechanical locks formed in the flaps to form the bottom panel of the can wrap. Since the bottom panel must maintain its integrity throughout the use of the can wrap, it is essential that the locking system be capable of supporting the weight of the cans and remain engaged during shipping and handling of the filled can wrap.
One approach to provide such a stable mechanical lock assembly utilizes primary and secondary locks. The primary locks connect the ends of the carton together via the flaps, while the secondary locks function to maintain the engaged flaps in place in order to provide a “backup” locking system to prevent the primary locks from separating.
For example U.S. Pat. No. 4,708,284 (Sutherland, et al.) issued on Nov. 24, 1987 discloses a locking arrangement including both a primary, and secondary male lock which utilizes a single female aperture for receiving both the primary and secondary male lock.
It is an object of the present invention to provide a can wrap with open ends utilizing a primary and secondary locking system which uses significantly less paperboard in constructing the can wrap than the present design. The present can wrap has open ends with the cans being held in place with retaining flaps at the top and bottom of each side panel that are held in place by an interconnecting tuck-in flap wedged between the side panel and the can. The present can wrap has a width that is at least equal to the sum of the diameters of the cans contained in each row. In order to save a significant amount of paperboard it is an object to find a way in which to decrease the width of the can wrap to less than the sum of the diameters of the cans in each row, but still hold the cans securely in place, if possible.
In order to save a significant amount of paperboard it is necessary to decrease the length of the blank of the can wrap since the length of the side panels and top panels are dictated by the size and number of cans contained. One way to reduce the length of the can wrap is in connection with the bottom flaps which are overlapped and held together by primary and secondary locking systems. Thus, it is a further object of this invention to reduce the length of the can wrap by reducing the length of the locking systems in the bottom flaps.
The objects of this invention have been achieved by providing a wrap-around carrier with open ends which contain the plurality of cylindrical containers in two rows. The wrap-around carrier has a top panel foldably connected to two side panels, one of which is connected to a first bottom flap and the other is connected to a second bottom flap. The first bottom flap has a plurality of primary male locks formed by slit cuts interconnected by a fold line and has a plurality of locking bases formed as an extension of the first bottom flap and has a secondary male lock formed as an extension of each locking base. The locking base adjacent to each end of the carrier has a locking shoulder which extends from the locking base of each secondary male lock adjacent the end of the carrier which aids in securing said locks in the locked position. The second bottom flap has a corresponding plurality of female openings, each of which has a primary locking ledge against which a primary male lock is secured and a secondary female locking ledge against which a secondary male lock is secured. The carrier has a tuck-in flap attached to each side panel at each end with the top of the tuck-in flap being foldably attached to a retaining flap which is also foldably attached to the top panel. A retaining flap is foldably attached to the bottom of each tuck-in flap and the bottom flap. The width of the carrier has been significantly reduced to a width less than the sum of the diameters of the containers in each row of containers so that all of the containers on each end of the carrier extend a significant distance beyond the end of the carrier when the carrier is loaded with containers. The containers are prevented from falling out of the carrier by the provision of each tuck-in flap being wedged between an end container and adjacent side panel so as to hold the retaining flaps against a top or bottom portion of the end container that projects beyond the end of the carrier.
An aperture may be provided between each retaining flap and the adjacent side panel to facilitate the folding and holding of said retaining flap securely against a portion of the adjacent container which projects beyond the end of the container.
The length of the carrier for this embodiment has been reduced by reducing the length of the base which is between each secondary male lock and the first bottom flap so that it is significantly less than the length for a conventional secondary male lock that extends beyond the end of the bottom flap of a carrier. The ability of the carrier to remain securely locked may be enhanced by providing locking shoulders between the locking base and the adjacent end of the carrier.
The prior art can wrap and the invented minimalist can wrap are intended primary for use for cans of the types used to contain soft drinks, beer, and the like. A typical example of a can that can be wrapped with the prior art carton and with the invented minimalist carton contains 354 milliliters of a drink. This size of can will be used as a reference throughout this description, but it should be realized that the minimalist can wrap of this invention is equally applicable to other sizes of cans as well. The blank for forming the prior art wrap is illustrated in
On the other side of the can wrap, tuck-in flap 64 is foldably connected to side panel 22 by fold line 66. Retaining flap 68 is foldably connected to bottom flap 26 by fold line 70 and to tuck-in flap 64 by fold line 72. Tuck-in flap 74 is foldably connected to side panel 22 by fold line 76. Retaining flap 78 is foldably connected to bottom flap 26 by fold line 80 and to tuck-in flap 74 by fold line 82. Tuck-in flap 74 is foldably connected to a retaining flap 84 by fold line 88. Retaining flap 84 is foldably connected to top panel 18 by fold line 86. Retaining flap 90 is foldably connected to top panel 18 by fold line 92 and to tuck-in flap 64 by fold line 94.
In order to facilitate the folding of the tuck-in flaps and retaining flaps, stress relieving apertures 40A–H are included at each corner of the side panels 14 and 22.
This can wrap may have a dispenser in the top panel 18 that is defined by tear line 98, which when torn permits the removal of most of dispenser flap 96. The dispenser flap 96 may have a fold line 114 about which the dispenser flap 96 can be folded to aid in maintaining the integrity of the can wrap.
For carrying this can wrap, finger flaps 100 may be provided which are partially separated from dispenser flap 96 by cut line 102. The finger flap 100 is partially removed from the plane of the top panel 18 by either being pushed inwardly or pulled outwardly to form a finger aperture 106 for easy carrying of this can wrap. Finger flaps 100 may have fold lines 104 to facilitate moving the finger flap 100 from the plane of the top panel 18.
This can wrap may have heel apertures 108 through which a portion of the bottom chime (not shown) of can C projects which assists in holding the can C in proper position in the can wrap. The can wrap may have an aperture 110 in bottom flap 26 for reading information on the bottom of a can C. The ends of top panel 18 may have a top arcuate indentations 112 which are located between the two rows of cans C.
This prior art can wrap has a conventional locking system including both a primary locking system and a secondary locking system. The primary locking system is a locking arrangement between primary male locks 116A–C in male locking panel 132, and primary female openings 128A–C. The primary male locks 116A–C are hooked over the ledges of the primary female openings 128A–C in bottom flap 12. The primary male locks 116A–C are separated by fold lines 118 which also serve to delineate the male locking panel 132. During the locking of the wrap it is important to tighten the wrap tightly about the cans. The primary locks connect the ends of the wrap together by engaging the primary female openings.
The secondary locking system consists of secondary male locks 122A–C in male locking panel 132 formed as an extension of the male locking panel and secondary female openings 130A–C formed in bottom flap 12. The secondary male locks may have fold lines 124 to facilitate easy locking of the secondary male locks. The secondary male locks 122A–C are formed at the end of converging base lines 126 extending from the fold lines 118 between the bottom flap 26 and male locking panel 132.
This prior art can wrap may be formed from the blank of
The minimalist can wrap is also intended primary for the use of wrapping cans that contain soft drinks, beer and the like. For illustration and comparison purposes with the prior art carrier described supra, the can wrap will be described in relation to the same 354 milliliter can. It should be noted that the minimalist can wrap is also applicable to other sizes of cans, or other types of cylindrical containers.
The blank for forming the wrap of this minimalist can wrap of this invention is illustrated in
On the other side of the can wrap, tuck-in flap 264 is foldably connected to side panel 222 by fold line 266. Retaining flap 268 is foldably connected to bottom flap 226 by fold line 270 and to tuck-in flap 264 by fold line 272. Tuck-in flap 274 is foldably connected to side panel 222 by fold line 276. Retaining flap 278 is foldably connected to bottom flap 226 by fold line 280 and to tuck-in flap 274 by fold line 282. Tuck-in flap 274 is foldably connected to a retaining flap 284 by fold line 288 and is foldably connected to top panel 218 by fold line 286. Retaining flap 290 is foldably connected to top panel 218 by fold line 292 and to tuck-in flap 264 by fold line 294.
In order to facilitate the folding of the tuck-in flaps and retaining flaps and holding the retaining flaps in position when the wrap is loaded with containers, stress relieving apertures 240A–H are included at each corner of the side panels 214 and 222.
This can wrap may have a dispenser in the top panel 218 that is defined by tear line 298, which when torn results in the removal of most of dispenser flap 296. The dispenser flap 296 may have a fold line 314 about which the dispenser flap 296 can be folded to aid in maintaining the integrity of the can wrap.
For carrying this can wrap, finger flaps 300 may be provided which are partially separated from dispenser flap 296 by cut line 302. The finger flap 300 is partially removed from the plane of the top panel 218 by either being pushed inwardly or pulled outwardly to form a finger aperture 306 for easy carrying of this can wrap. Finger flaps 300 may have crease lines 304 to facilitate moving the finger flap 300 from the plane of the top panel 218.
This can wrap may have heel apertures 308 through which a portion of the bottom chime (not shown) of can C projects which assists in holding the can C in proper position in the can wrap. The can wrap may have aperture 310 in bottom flap 226 for reading information on the bottom of a can C. The top panel 218 may have top arcuate indentations 312 which are located between the two rows of cans C.
The minimalist can wrap of this invention has a minimalist locking system. The locking system on this embodiment includes both a primary locking system and a secondary locking system. As shown in
The minimalist female locking system consists of a single aperture in the female openings 350A–C for each locking pair of both primary and secondary male locks. The female openings 350A–C are formed in the female locking panel 334. Each female opening 350A–C has a primary female locking ledge 338A–C respectively and a secondary female locking ledge 340A–C respectively. In the minimalist locking system of this invention, the single aperture in the female openings 350A–C replaces the two apertures, namely primary female openings 128A–C and secondary female openings 130A–C of the prior art carton shown in
The minimalist can wrap of this embodiment of the invention is formed from the blank of
Bottom flap 212 and 226 are folded upwardly against the bottoms of the cans and locked. Compression fingers on the wrap machine are inserted through the heel apertures 308 to tighten the carton for locking. It should be understood that bottom flap 226 is folded over bottom flap 212 and locked. The secondary male locks 322A–C are pushed inwardly and locked against secondary female locking ledges 340A–C. Primary male locks 316A–C are pushed inwardly and locked against primary female locking ledges 338A–C. Bottom flap 226 is on the outside of bottom flap 212.
As part of the process, tuck-in flaps 230, 242, 264 and 274 are folded inwardly as side panels 214 and 222 are moved downwardly around the group of cans C so that the tuck-in flaps are held against the inside of side panels 214 and 222 by the adjoining cans C. This pulls retaining flaps 234, 246, 252, 258, 268, 278, 284 and 290 tightly against the tops and bottoms respectively of each adjacent can to the retaining flaps preventing the cans C from falling out of the can wrap. Fingers on the wrap machine push in the tuck-in flaps 230, 242, 264, and 274. The stress relieving apertures 240A–H facilitate moving these tuck-in flaps and retaining flaps inwardly. Side panels 214 and 222 are pushed downwardly and inwardly and female locking panel 334 is pushed upwardly against the bottoms of the cans. Compression fingers can be inserted through the heel apertures 308 to tighten the wrap.
Bottom flap 212 and 226 are folded upwardly against the bottoms of the cans and locked. Compression fingers on the wrap machine are inserted through the heel apertures 308 to tighten the carrier for locking. It should be understood that bottom flap 226 is folded over bottom flap 212 and locked. The secondary male locks 322A–C are pushed inwardly and locked against secondary female locking ledges 340A–C. Primary male locks 316A–C are pushed inwardly and locked against primary female locking ledges 338A–C. Bottom flap 226 is on the outside of bottom flap 212.
Both of these can wraps are designed to contain six 354 milliliters cans, with each can having a diameter of 66 millimeters. The significant differences are pointed out below in respect to the can wraps made from the blank of
Since both the prior art can wrap and the minimalist can wrap are designed to contain six 354 millimeters can, a striking visual difference can be seen by comparing
Since the can C has a diameter of 66 millimeters, three cans C aligned in a row have a total diameter of 198 millimeters. One striking visual difference between the two can wraps is in the width of the blank. This visual difference is readily apparent in comparing the width of the view of the bottom of the wrap in
The length L of the prior art blank shown in
It is important to realize how these differences between the length and width of the prior art blank and the minimalist blank of this invention are achieved. They cannot be achieved by simply reducing the width W and length L of the prior art blank shown in
In addition, the length S of the secondary male locks 122A–C of the prior art has been reduced from a length of 13.5 millimeters to a length S′ of 11 millimeters in secondary male locks 322A–C of the minimalist can wrap is shown in
Both
An important feature that permits reducing the length from V to V′ in the minimalist carton blank is the presence of locking shoulders 342A&C on the base 336A&C of the outside secondary male locks 322A&C shown in
An important contribution to the reduction of the length of the minimalist can wrap is the reduction in the length of the bottom flap 12 of the carton. The length P of the bottom flap 12 is 56 millimeters as shown in
The significant reductions in the width W in
The reductions in the length and width of the minimalist can wrap results in a sufficient savings of paperboard, but yet results in a can wrap which securely holds the containers in place due to the new features discussed above.
While the invention has been disclosed in its preferred forms, it will be apparent to those skilled in the art that many modifications, additions, and deletions can be made therein without departing from the spirit and scope of the invention and its equivalents as set forth in the following claims.
Number | Name | Date | Kind |
---|---|---|---|
3381881 | Ganz et al. | May 1968 | A |
3670950 | Rossi | Jun 1972 | A |
3767042 | Ganz | Oct 1973 | A |
3797729 | Holmes | Mar 1974 | A |
4200220 | Ganz | Apr 1980 | A |
4708284 | Sutherland et al. | Nov 1987 | A |
5398870 | Bienaime | Mar 1995 | A |
Number | Date | Country | |
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20040188301 A1 | Sep 2004 | US |