JP3225123B2 - Can carton - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a can carton, preferably made of paperboard, for packaging a plurality of containers such as cans.

[0002]

2. Description of the Related Art EP-A-0044169 discloses an end-load carton for packaging a plurality of articles such as bottles. This publication is a closure structure for the end of a carton, which has closure flaps foldably connected to triangular shaped gusset panels, which gusset panels are attached to the edges of the side walls of the carton. It is foldably connected. Each carton corner is provided with a pair of gusset panels, one lower panel having a side edge tapering to the bottom of the carton, and one upper panel having a side edge facing the top of the carton. Tapered.

US Pat. No. 4,747,487 discloses a carton for a bottle having only a lower triangular gusset panel. In this case, the visibility of the packaged bottle is good, but the number of bottles that can be held is smaller than in the conventional carton. Further, the carton has upper and lower side panels that can be crushed along a fold line connecting the panels, the carton being of the type of charging a carton with cans. It is not suitable for general use on different machines.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a can carton for packaging a plurality of containers, such as cans, which overcomes the problems of conventional cartons.

[0005]

SUMMARY OF THE INVENTION An end-loaded can carton for packaging a plurality of cans has a top wall, a bottom wall, and a side wall that are foldably connected to form a tubular structure. The end closure at each end has a pair of triangular corner panels hinged to the edges of the side walls, each corner panel comprising a fold line extending upwardly from the lower corner of each side wall. Is done. A pair of closure panels are each foldably connected to the corner panels along a fold line to form a partial closure structure for the lower portion of each end of the carton. A bottom end panel is foldably connected to each edge of the bottom wall.
A connecting web structure is foldably connected to a bottom edge of each of the closure panels along a first fold line and foldably connected to each of the bottom end panels along a second fold line at each corner of the carton. Have been.

[0006] The present invention is directed to a back side of the bottom end panel when the carton is closed when each of the corner panels and a corresponding one of the closure panels are closed from the point near the top edge of the side wall along the edge of the side wall. And terminates at an upper edge defined by a line extending downward to a point located at

According to another feature of the invention, at least some of the connecting web structures of the carton are configured as extensions of a fold line connecting a corresponding one of the side walls to the bottom wall. It is bisected by the third fold line.
Thereby, the carton can be crushed along a fold line connecting the top wall, the bottom wall, and the side wall.

According to yet another feature of the invention, a connecting web structure is disposed substantially perpendicular to the first fold line to stiffen the web structure during folding of the end closure. Each has at least one horizontal score line.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In FIG. 1, reference numeral 1 denotes a bottom wall of a can carton, and a bottom end panel 2 is foldably connected to an edge of the bottom wall 1 through a fold line 3. A bottom end panel 4 is foldably connected to an edge of the bottom wall 1 via a fold line 5.

On the other hand, a side wall 6 is foldably connected to one side edge of the bottom wall 1 of the can carton via a fold line 7, and a side wall 8 is connected to the other side edge of the bottom wall 1. Is the fold line 9
Are connected so as to be foldable. Further, an upper wall 10 is foldably connected to an upper edge of the side wall 8 via a fold line 11. The upper wall 10 is provided with a finger grip opening (not shown) having a well-known structure. Also,
The opposite side edge of the upper wall 10 is connected via a glue margin 12 fold line 13.

The closure structure at one end of the carton has a corner flap 14 foldably connected to the side wall 6 via a fold line 15 and defined by a fold line 16 extending upwardly and divergently from a lower corner 17 of the carton. A closing panel 18 is foldably connected to the corner flap 14 via a fold line 16. A connecting web structure 19 is foldably connected to the bottom edge of the closing panel 18 via a fold line 20. This connecting web structure 19 is likewise foldably connected to the bottom end panel 2 via a fold line 21.

On the other hand, between the web structure 19 and the closure panel 18 adjacent to the corner 17, a relief opening 22 is provided.
Is provided. This relief opening 22 forms a space for the overlapping closure structure when the panel is folded to its closed position as described below. Further, score lines 23 and 24 are formed substantially perpendicular to the fold line 20.

The upper edge 25 of the corner panel 14 and the upper edge 26 of the closure panel 18 start at a point near the upper corner 27 along the edge of the side wall 6 and bring the closure structure into the closed position as shown in FIG. At one point it is constituted by a line extending downward to a point 28 located on the back side of the bottom end panel 2. The shape of the corner panel 14 and the closure panel 18 form a closure structure that conforms to the cylindrical shape of the can to be packaged and holds the can along essentially the entire height of the can. At the same time, the can at the extreme end of the package is visible to the package purchaser.

The carton end closure structure is completed by a corner panel 14, a closure panel 18 and a web structure 19 provided at the end of the side wall 8. Furthermore, the closure structure at the opposite end of the carton is formed by the same structure of the panels at the opposite ends of the side walls 6 and 8.

Thus, in order to form a carton made from the blank shown in the plan view of FIG. 1, first, the margin 12 is glued, and the margin 12 is adhered to the free end of the side wall 6. This forms a tubular carton and is ready to charge the can into the carton using a conventional charging machine.

In order to use such a charging machine, it is necessary to supply the crushed carton so that the crushed carton is disposed in the feeder supply hopper. To crush the carton, at least some of the web structures 19 are provided with fold lines 29 that extend from adjacent fold lines connecting the corresponding side walls to the bottom wall. A fold line 29 must be provided in the web structure at each end of the corresponding fold line, for example at each end of the fold line 7. If this is not the case, the fold line 29 may also be provided at the web structure 19 at each end of the fold line 9 or instead of at the web structure 19 at each end of the fold line 7, Preferably, a web structure 19 at each end is provided.

FIG. 2 shows the carton assembled and ready for can loading through the carton end. After loading the cans, the bottom end panel 2 is folded down to close the carton end closure structure. This folding action is caused by the fold line 20
Is folded slightly above the fold line 3,
The action of the connecting web structure 19 causes the closing panel 18 to swing with the corner panel 14 into a partially closed position. Next, the bottom end panel 2 is glued.

Next, as shown in FIG.
Is folded upward to close the end closure panel 18 to the corner panel 14.
To the final closed position of these panels with
Ensure that the end closure structure is substantially snug. Then, the bottom end panel 2 is fixed to the end closing panel 18 by gluing the bottom end panel 2, and then the web structure 19 is disposed between the bottom end panel 2 and the end closing panel 18.

[Brief description of the drawings]

FIG. 1 is a plan view from the inside of a blank of a can carton according to the present invention.

FIG. 2 is a perspective view of an assembled canned carton with open ends ready for loading.

FIG. 3 is a perspective view of a loaded can carton with the end structure completely closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom wall 2, 4 Bottom end panel 6, 8 Side wall 10 Top wall 12 Glue margin 14 Corner panel 18 Closure panel 19 Connection web structure

Claims (1)

(57) [Claims] An end closure for each end of the tubular structure, the bottom and side walls being foldably connected to form a tubular structure, and each end closure having a top closure for each end of the tubular structure. A corner panel formed by a fold line extending upwardly from a lower corner of the side wall to the edge; and a foldable connection to the corner panel along the fold line for the lower portion of each end of the carton. A pair of closure panels forming a partial closure structure; a bottom end panel foldably connected to each edge of the bottom wall; and a foldable connection to a bottom edge of the closure panel along a fold line. An end-loading can carton for packaging a plurality of cans, the connecting web structure being provided and having a connecting web structure foldably connected to the bottom end panel along a fold line at a corner of the carton. Panel and the closure corresponding to this corner panel A chain panel terminating at a top edge formed by a line extending downward from a point along the edge of the side wall near the top end of the side wall to a point located behind the bottom end panel when the carton is closed; The end wherein the connecting web structure has at least one transverse fold line disposed substantially perpendicular to the fold line to stiffen the web structure during folding of the end closure. Rechargeable can carton.