Multi-Cell Divider Carton

1. Field of the Invention

This invention relates to a carton construction, and more particularly, a carton construction provided with a plurality of spaced cells or compartments in the interior thereof, and a unitary blank for manufacturing the same.

2. Description of the Prior Art

Multi-cell divided cartons are used to hold articles in a specific configuration or for holding the articles in place relative to each other to avoid damage during shipment. An example of such a carton is one that holds bottles which is shipped from a distributor to a retail establishment and the carton can be used to display the bottles at the establishment.

Heretofore, the multi-cell dividers utilized in such a carton included one or more pieces separate from the carton. For example, one known divider comprises separate pieces which are perpendicularly interleaved at spaced intervals along one of the pieces and placed within the interior of the carton. Alternatively, a multi-cell divider included portions which were adhesively connected to each other at perpendicular intervals and manually placed within the interior of a rectangular parallelopiped carton. In either event, the assembly of such cartons are time-consuming and require shipment and assembly of separate pieces.

Reference is made to copending application Ser. No. 155,096 filed by the same applicant.

In accordance with the present invention, a multicell divided carton can be constructed from a unitary, onepiece, paperboard blank which can be shipped flat to the user, wherein it can be assembled without any special machinery, effecting significant savings in shipping costs, assembly costs, and material costs.

The blank includes a front and rear panel connected by one side panel. A second side panel is connected to the free side edge of the front panel. A glue flap extends from the free edge of the second side panel which is overlapped with an edge of the rear panel to form a tubular carton construction having a rectangular parallelopiped configuration. A cover element is hingedly connected to the top edge of the rear panel and a bottom wall panel is hingedly connected to the opposite, lower edge of the rear panel, which is interleaved with bottom wall panels on the lower edges of each side and front wall panel to form a closed, bottom wall.

Foldably connected to a side edge of the rear wall panel of the blank is a one-piece panel for forming an interior, multi-cell divider construction for the interior of the carton, when assembled. The divider panel includes an upper and lower panel portion which constitute the mirror image of each other, except that the lower panel portion is offset laterally, slightly towards the rear wall panel of the blank. The upper and lower panel portions of the divider panel are interconnected by a central hinged panel including a plurality of trapezoidal-shaped portions aligned so that the base of one of the trapezoidal portions coincides with the top edge of an immediately preceding trapezoidal portion. The edges of the bases of each of the trapezoidal portions of the central panel which overlap the top edge of a preceding trapezoidal panel portion is hingedly connected by a parallelogram shaped strip to each of the top and bottom mirror-image panel portions in the divider panel. The strips connecting the bases of the trapezoidal portions of the central panel to the top mirror-image panel are approximately twice the length of those connecting the bases of the trapezoidal portions to the bottom mirror-image panel.

Upon assembly and erection of the carton, the divider panel is foldable over the interior surface of the rear wall panel of the carton blank along the side edge of the rear wall panel and adhesively connected thereto. The central panel portion of the divider panel including the trapezoidal aligned portions is then folded back upon itself so that the free edge of the top mirror-image portion of the divider panel coincides with the bottom edge of the rear wall panel of the carton blank. The rear of the hinged center portion is then adhesively connected to the front wall panel of the carton which is folded relative thereto about one of the side edges of the first side wall panel. The glue flap is then connected to an edge of the rear wall panel to form a tubular enclosure and the top and bottom wall flaps folded and interleaved, where required, to form a top and bottom wall for the carton.

When thus erected, the bottom mirror-image portion of the divider panel extends midway between the front and rear wall panels of the carton to form a central divider extending the entire width of the carton. The shorter parallelogram strips space the bottom panel portion of the divider from the rear wall of the carton. The longer parallelogram strips extend between one of the folded portions of the central trapezoidal panel now adhered to the rear wall and the top mirror-image portion of the divider panel construction now adhered to the front panel wall of the carton. The longer strips are above the shorter strips but lie in the same vertical plane so that the strips and the bottom mirror-image portion now in the center of the carton form a perpendicular cross divider structure for receiving bottles or the like in a plurality of compartments.

Further objects and advantages of the present invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:

FIG. 1 is a top plan view of a blank for forming the multi-cell divider carton of the present invention;

FIGS. 2-8, inclusive, are perspective views illustrating the mode of folding the blank of FIG. 1 to form the multi-cell divider carton of the present invention;

FIG. 9 is a perspective view of the erected multi-cell divider carton of the present invention;

FIG. 10 is a cross-sectional view taken substantially along the plane indicated by line 10--10 of FIG. 9; and

FIG. 11 is a cross-sectional view taken substantially along the plane indicated by line 11--11 of FIG. 10.

Referring now to the drawings in detail, wherein like numerals indicate like elements throughout the several views, a multi-cell divided carton 10 can be constructed from a unitary, one-piece paperboard blank 12 illustrated in FIG. 1. The blank 12 can be shipped flat to the user, wherein it can be assembled without any special machinery, effecting significant savings in shipping costs, assembly costs, and material costs.

The blank 12 includes a front and rear panel, 14 and 16, respectively, connected by one side panel 18 foldable along opposed edges 20 and 22. A second side panel 24 is connected to the free side edge 26 of the front panel 14. A glue flap 28 extends from the free, foldable side edge 30 of the second side panel 24 which is overlapped with the free edge 32 of the rear panel 16 to form a tubular carton construction having a rectangular parallelopiped configuration, as is shown in FIGS. 5 to 11.

A cover element 34 is hingedly connected to the top edge 36 of the rear panel 16 and a bottom wall panel 38 is hingedly connected to the opposite, lower edge 40 of the rear panel 16, which is adapted to be interleaved with bottom wall panels 41, 43 and 39 foldably connected to the lower edges 45, 47 and 54, respectively, of each of the side wall panels 24, 18 and front wall panel 14, to form a closed, bottom wall.

Foldably connected to the side edge 32 of the rear wall panel 16 of the blank 12 is a one-piece panel 56 for forming an interior, multi-cell divider construction 58 for the interior of the carton 10, when assembled, as illustrated in FIGS. 5 to 11. The divider panel 56 includes an upper and lower panel portion 60 and 62, respectively, which constitute the mirror images of each other, except that the lower panel portion 62 is offset laterally, slightly towards the rear wall panel 16 of the blank 12. The upper and lower panel portions 60 and 62 of the divider panel 56 are interconnected by a central hinged panel 64 including a plurality of trapezoidal-shaped portions 66 aligned so that the base 68 of one of the trapezoidal portions coincides with the top edge 70 of an immediately preceding trapezoidal portion. The edges 72 of the bases 68 of each of the trapezoidal portions 66 of the central panel 56 which overlap the top edge 70 of a preceding trapezoidal panel portion 66 is hingedly connected by a parallelogram shaped strip 74 and 76, respectively, to each of the top and bottom mirror-image panel portions 60 and 62, respectively, in the divider panel 56. The strips 74 connecting the bases 68 of the trapezoidal portion 66 of the central panel 56 to the top mirror image panel 60 are approximately twice the length of those strips 76 connecting the bases 28 of the trapezoidal portions 66 to the bottom mirror-image panel 62.

Upon assembly and erection of the carton 10, the top, mirror image portion 60 of the divider panel 56 is foldable over the interior surface of the rear wall panel 16 of the carton blank 12 along the side edge 32 of the rear wall panel 16 and adhesively connected thereto, by a line of adhesive 78, as shown in FIG. 2. The central panel portion 64 of the divider panel 56 including the trapezoidal aligned portions 66 is then folded back upon itself on a fold line 80 coincident with top edge 36 of rear wall 16 which approximately bisects panel portion 64, as shown in FIG. 3 so that the free edge of the other or top mirror-image portion 60 of the divider panel 56 coincides with the bottom edge 40 of the rear wall panel 16 of the carton blank 12. The rear of the hinged center panel portion 64 is then adhesively connected by a line of adhesive 82 to the front wall panel 14 of the carton which is folded relative thereto about the side 20 edge of the first side wall panel 18, as illustrated in FIG. 4. The glue flap 28 is then connected to the free edge 32 of the rear panel 16 to form the tubular enclosure of FIG. 5 and the top and bottom wall flaps 34 and 38, 39, 43, 45, respectively, folded to form a top and bottom wall for the carton 10.

Top wall flap 34 also has a tuck flap 84 hingedly connected along a fold line 86 to flap 34. Tuck flap 84 is received within the enclosure of carton 10 to close a three-sided openings 88 cut in front wall panel 14. By deleting the tuck flap 84, as for example, by tearing it from the cover along line 86, the goods within carton 10 housed within the divider construction 58, can be displayed.

As shown in FIGS. 6 to 8, the bottom wall of carton 10 is formed by folding panel 38 ninety degrees about edge 40 of rear wall panel 16. The bottom panel flaps 41 and 43, connected to side panels 24 and 18, respectively, are then folded ninety degrees about edges 45 and 47, respectively, and a hook-like end 90 on each flap inserted beneath the edge 92 of flap 38 to lock the flaps 41 and 43 to flap 38. Bottom flap 39 is then folded about edge 54 and a rectangular extension panel 94 inserted beneath edge 92 of flap 38 to complete the construction of the bottom wall and lock the bottom wall flaps together.

When thus erected, the bottom mirror image portion 62 of the divider panel 56 extends midway between the front and rear wall panels 14 and 16 of the carton 10, as shown in FIGS. 9 to 11 to form a central divider extending the entire width of the carton. The shorter parallelogram strips 76 space the bottom panel portion 62 of the divider panel 56 from the rear wall 16 of the carton 10. The longer parallelogram strips 74 extend between one of the folded portions of the central panel 64 now adhered to the rear wall 16 and the top mirror-image portion 60 of the divider panel construction 56 now adhered to the front wall panel 14 of the carton 10. The longer strips 74 are above the shorter strips 76, but lie in the same vertical plane so that the strips and the bottom mirror image portion 62 of divider panel 56 is disposed in the center of the carton forming the perpendicular, cross-divider structure 58 for receiving bottles or the like in a plurality of compartments C.