JP3137593U - Cardboard box - Google Patents

Abstract

The present invention provides a corrugated cardboard box that can be surely broken for opening by a cutting guide line such as a perforation.
A third cutting guide wire 56 is formed at an intermediate position between a pair of cutting guide wires 55 and 57 formed at an opening site and at a position substantially equal to both cutting guide wires. Even if an oblique cutting line 66 is generated from 55 or 57, this cutting line 66 is stopped at the intermediate cutting guide line 56, so that the corrugated cardboard sheet between the cutting guide lines 55 and 57 is completely removed. To be.
[Selection] Figure 8

Description

  The present invention relates to a corrugated cardboard box, and more particularly to a corrugated cardboard box in which a cutting guide wire is formed at a cutting and opening position, and a corrugated cardboard sheet is cut and opened by the cutting guide wire.

  For example, as disclosed in Japanese Patent Application Laid-Open No. 2003-327239 and Japanese Patent Application Laid-Open No. 2005-178788, cardboard boxes have been widely used in the past to provide beverage cans such as canned beer for distribution. Such a corrugated cardboard box is opened by forming a cutting guide portion composed of perforations at the cutting and opening position, and breaking the cardboard sheet at the cutting guide portion. Such an opening form is excellent in the workability of opening compared with the case where the glued portion of the lid is peeled off and opened. Even if the lid is firmly bonded and fixed, there is no particular problem.

  1 and 2 show the structure of such a conventional cardboard box for canned beer, and this cardboard box is assembled from the cardboard sheet shown in FIG. The corrugated board sheet includes a top plate 11, a bottom plate 12, side plates 13, 14 and lid plates 15 and 16 on the top plate 11 side, and lid plates 17 and 18 on the bottom plate 12 side. Further, flaps 19, 20 and 21, 22 are connected to the side plates 13, 14, respectively. A joining piece 23 is continuously provided at the end of the side plate 14.

  In such a corrugated cardboard sheet, the joining piece 23 is glued to the inside of the end portion of the opposite top plate 11. In addition, after being assembled into a cylindrical shape, the openings at both ends are closed by flaps 19, 20, 21, and 22 and are closed by lid plates 15 to 18 from both sides, thereby flattening as shown in FIG. A cardboard box having a rectangular parallelepiped shape is assembled. In such a cardboard box, beverage cans can be arranged and stored.

  A pair of cutting guide lines 27 and 28 that are parallel to each other are formed on the side plates 13 and 14 of such a cardboard box, respectively, and incisions 29 and 30 are formed at substantially the center of the cutting guide lines 27 and 28. ing. Therefore, the packaging box is opened by performing the opening by pinching the intermediate positions of the cutting guide lines 27 and 28 at the cuts 29 and 30.

  However, in practice, a packaging box that opens by such breakage has a drawback that smooth opening is not always performed. That is, as shown in FIG. 3, when the liner on the inner side and the back side of the corrugated board breaks at the cutting line 32 between the pair of cutting guiding lines 27 as shown in FIG. The part is completely broken and the opening function is lost. That is, in the middle of opening along the cutting guide line 27, the inner liner on the back side is broken at the oblique cutting line 32, so that the opening function by the cutting guide line 27 does not work well, and the opening is hindered. There was a problem that occurred.

  The corrugated cardboard box disclosed in Japanese Patent Application Laid-Open No. 2003-327239 is provided with a tear strip made of two liner cut lines or a cut tape on the back liner of the outer peripheral wall surface, and the tear card is opened from the cut portion formed on the wall surface. In the box, insert a half-cut perforation line by punching from the surface side of the front liner along the cut zone, and pulling the cut zone from the cut out part will cut the front liner at the location of the break line. The surface layer of the cardboard is prevented from peeling off.

Such a configuration is to prevent an ugly appearance after breakage due to peeling of the opposite front liner, not the back liner or the inner liner of the corrugated sheet, and in the inner and back liner portions. Unsuccessful opening due to cutting at the cutting line 32 shown in FIG. 3 cannot be prevented.
JP 2003-327239 A JP 2005-178788 A

  An object of the present invention is to provide a cardboard box in which an opening operation is smoothly performed.

  Another object of the present invention is to provide a corrugated cardboard box that is surely broken for opening by a cutting guide line such as a perforation.

  Still another object of the present invention is to provide a corrugated cardboard box in which opening troubles due to cutting of the back liner portion are avoided between the cutting guide lines.

  Yet another problem of the present invention is that when the cardboard sheet is broken and removed at the portion between the pair of cutting guide lines, and the opening is performed, the inner liner and the back liner are cut in the middle, and the opening operation is hindered. It is to provide a corrugated cardboard box that is prevented from being damaged.

  Still another problem of the present invention is that when the corrugated cardboard sheet between the pair of cutting guide lines is removed by breakage, the cutting lines generated at the site between the pair of cutting guide lines connect the cutting guide lines on both sides. Thus, the present invention provides a corrugated cardboard box that does not completely cut between the cutting guide lines.

  The above-described problems and other problems of the present invention will be made clear by the technical idea of the present invention and the embodiments thereof described below.

The main idea of the present application is to form a pair of cutting guide lines parallel to each other at the cutting opening position, and to cut and open the cardboard sheet between the cutting guide lines,
The present invention relates to a corrugated cardboard box, wherein a cutting guide wire is further formed between the pair of cutting guide wires.

  Here, the further formed cutting guide lines may be parallel to the pair of cutting guide lines. The further formed cutting guide line may be a cutting guide line formed between a pair of cutting guide lines on both sides. The pair of cutting guide lines and the further formed cutting guide lines may be perforations. Moreover, you may make it accommodate a drink can.

  The main idea of the present application is to form a pair of cutting guide lines parallel to each other at the cutting opening position, and to cut and open the cardboard sheet between the cutting guide lines, between the pair of cutting guide lines. Further, a cutting guide wire is formed.

  Therefore, according to such a cardboard box, when the cardboard sheet between the pair of cutting guide lines on both sides is removed by breaking and opening, even if a cut extending in the width direction between the cutting guide lines occurs, Such cutting is prevented by the portion of the cutting guide wire formed, and thus, it is prevented that the pair of cutting guide wires on both sides are completely cut, and thus the opening is stopped at that position. Is avoided.

  The present invention will be described below with reference to the illustrated embodiments. FIG. 4 shows a cardboard sheet for assembling the cardboard box of this embodiment, and FIG. 5 shows a packaging box assembled by such a cardboard sheet. 4 includes a top plate 36, a side plate 37, a bottom plate 38, a side plate 39, and a joining piece 40, which are connected to each other by a fold line 41 so as to be foldable.

  Further, upper lid plates 45 are continuously provided on both sides of the top plate 36 via folding lines 44. On the other hand, a lower lid plate 47 is continuously provided on both sides of the bottom plate 38 via a fold line 46. Further, flaps 49 are continuously provided on both sides of the side plate 37 via folding lines 48. Further, flaps 51 are continuously provided on both sides of the side plate 39 via folding lines 50.

  The side plates 37, 39 are formed with three cutting guide lines 55, 56, 57 parallel to each other. These cutting guide lines 55, 56 and 57 are each composed of perforations. Further, incisions 58 are formed at intermediate positions of the cutting guide lines 55, 56, 57 of the side plates 37, 39, respectively.

  Incidentally, the corrugated cardboard sheet 35 for assembling such a corrugated cardboard box has a structure in which a front liner 61 and a back liner 62 are provided, and a core 63 bent zigzag is disposed between them as shown in FIG. And constitutes a so-called corrugated cardboard.

  Next, the operation of assembling the cardboard box as shown in FIG. 5 using the cardboard sheet having the above configuration (see FIG. 4) will be described. The top plate 36, the side plate 37, the bottom plate 38, the side plate 39, and the joining piece 40 are sequentially bent at the folding line 41, and the joining piece 40 is glued to the lower surface of the opposite end of the top plate 36. And join. As a result, a flat rectangular tubular cylinder is assembled from the corrugated cardboard sheet 35.

  A predetermined number of, for example, canned beer is filled in such a cardboard box. In the openings on both sides, the flaps 49 and 51 on both sides are first bent at the folding lines 48 and 50, respectively, and then the upper lid plate 45 and the lower lid plate 47 are folded on the folding lines 44 and 44, respectively. Bending at 46 closes the openings on both sides. Thus, as shown in FIG. 5, a cardboard box filled with a predetermined number of beer cans is assembled. Therefore, such a corrugated cardboard box serves beer cans for distribution.

  When opening such a beer can, as shown in FIG. 5, the cutting guide wires 55 on both sides of the three cutting guide wires 55, 56, and 57 formed on the side plates 37 and 39, respectively. , 57 is removed by breaking. That is, by inserting a finger or the like into the portion of the cut 58 formed so as to cross between the cutting guide lines 55 and 57 and pinching the portion between the cutting guide lines 55 and 57, along the cutting guide lines 55 and 57. To break. Then, since the cardboard sheet in the portion between the cutting guide lines 55 and 57 is removed, the cardboard box is divided into upper and lower portions as shown in FIG. Therefore, for example, a portion on the upper top plate 36 side is separated from the lower half where the bottom plate 38 is formed, and thereby opening is performed.

  Actually, however, the portion between the cutting guide lines 55 and 57 is broken and opened, and the back liner 62 located on the inner side between the cutting guide lines 55 and 57 is cut obliquely. There is a problem that opening is hindered by cutting at the line 66 (see FIG. 8). That is, there is a problem that the cutting guide wires 55 and 57 are not completely separated and removed by the oblique cutting of the liner 62 on the back side at the portion between the cutting guide wires 55 and 57.

  However, in the present embodiment, the cutting guide wire 56 is provided at an intermediate position between the cutting guide wires 55 and 57. Therefore, as shown in FIG. 8, even if the back liner 62 breaks along the cutting line 66, the cutting line 66 stops at the middle cutting guide line 56 and connects the cutting guide lines 55 and 57 on both sides. Thus, the cutting line 66 is not extended and cut. That is, in the past, the cutting guide lines 55 and 57 on both sides were cut by complete cutting, but the cutting is stopped by the middle cutting guide line 56, and the corrugated cardboard sheet in the portion between the cutting guide lines 55 and 57 In order to avoid this cutting, it is further possible to break along the cutting guide lines 55, 57, thereby achieving almost complete opening. That is, the opening function by the cutting guide lines 55 and 57 is maintained by the intermediate cutting guide line 56.

  In the present embodiment, the dimension between the pair of cutting guide lines 55 and 57 is 14 mm, and the dimension between the middle cutting guide line 56 and the cutting guide lines 55 and 57 on both sides is 7 mm. Generally, the dimension between the cutting guide lines 55 and 57 on both sides is preferably within a range of 8 to 30 mm, and more preferably within a range of 10 to 20 mm. The intermediate cutting guide line 56 is preferably set at an intermediate position between the cutting guide lines 55 and 57 on both sides and at an equal distance from both.

  Such an unsealing structure may be formed by forming a cutting guide wire 56 in the middle of the cutting guide wires 55 and 57 of one liner, both side liners, or corrugated cardboard sheets for assembling the cardboard box. Here, the cutting guide line may be formed only on the back liner 62. Alternatively, it is possible to cope with this by simply adding a cutter tooth for forming the cutting guide wire 56 between the cutter teeth for forming the punching type cutting guide wires 55 and 57 for punching the corrugated cardboard sheet 35 shown in FIG. Does not require special processes or equipment. That is, it is possible to achieve the function of preventing the failure of opening at the same cost as in the past.

  While the present invention has been described with reference to the illustrated embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention. For example, the unsealed site by the cutting guide lines 55, 56, and 57 in the above embodiment can be arbitrarily arranged at a position corresponding to the purpose of the cardboard box. Moreover, such a cardboard box is widely used not only for filling beer cans but also various other beverage cans.

  It can be used as a cardboard box for filling beverage cans for distribution.

It is an expansion | deployment top view of the cardboard sheet | seat which assembles the conventional cardboard box. It is an external appearance perspective view of the conventional cardboard box. It is a top view which shows arrangement | positioning of the cutting | disconnection guide line of the cardboard box. It is an expansion | deployment top view of the cardboard sheet | seat which assembles the cardboard box of this Embodiment. It is an external appearance perspective view of the cardboard box assembled with the corrugated cardboard sheet. It is an external appearance perspective view of the cardboard box of the opened state. It is an expanded sectional view of a cardboard sheet. It is a top view which shows arrangement | positioning of the cutting | disconnection guide line of the opening site | part of a cardboard box.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Top plate 12 Bottom plate 13, 14 Side plate 15-18 Cover plate 19-22 Flap 23 Joining piece 27, 28 Cutting guide wire 29, 30 Cutting 32 Cutting line 35 Corrugated cardboard sheet 36 Top plate 37 Side plate 38 Bottom plate 39 Side plate 40 Joint piece 41 Bending line 44 Bending line 45 Cover plate (upper)
46 Folding line 47 Cover plate (bottom)
48 Folding line 49 Flap 50 Folding line 51 Flap 55-57 Cutting guide line (perforation)
58 Cutting 61 Front liner 62 Back liner 63 Core 66 Cutting line

Claims (5)

In a cardboard box that forms a pair of cutting guide lines parallel to each other at the cutting opening position, and cuts and opens the cardboard sheet between the cutting guide lines,
A cardboard box, wherein a cutting guide wire is further formed between the pair of cutting guide wires.   The cardboard box according to claim 1, wherein the further formed cutting guide lines are parallel to the pair of cutting guide lines.   The cardboard box according to claim 1 or 2, wherein the further formed cutting guide line is a cutting guide line formed between a pair of cutting guide lines on both sides.   The cardboard box according to any one of claims 1 to 3, wherein the pair of cutting guide lines and the further formed cutting guide lines are perforations.   The cardboard box according to any one of claims 1 to 4, wherein a beverage can is stored.

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