JP2001072044A - Corrugated cardboard box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corrugated cardboard box in which a barrel flexing can be prevented in consideration of contribution of stored content and material quality (sheet unit amount) of the cardboard can be reduced. SOLUTION: A corrugated cardboard box having an upper flap 21 and a lower flap 22 is made such that at least one side plate 11 of four side plates 11, 12, 11 and 12 forming its barrel segment is formed with a line 31 which is easily buckles near the height segments of an upper or a lower or both flap slits 110, 120 to cause a load to be directly applied to the stored contents and then the barrel flexing of the side plates 11, 12 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cardboard box capable of preventing a trunk from bending.

[0002]

2. Description of the Related Art In a conventional cardboard box, when a load is applied for a long period of time, particularly when the box height is about the same as or larger than the box length or width, the body of the box is more likely to bend than near the top and bottom flaps. In some cases, a so-called trunk bending state is exhibited. If this phenomenon occurs, the commercial value of the contents will not decrease, and even if there is no problem with the stability of the packaging on the pallet, the appearance will deteriorate and cause complaints.
There is a tendency to respond by increasing the material of the tool. The inventor of the present invention has found that if the contents can contribute to the compressive strength of the entire box by reducing the height of the box that does not lead to body bending during storage by putting the contents in the cardboard, the body bending can be prevented, and The present inventors have found that the material (sheet basis weight) can be reduced, the amount of cardboard used can be reduced, the cost can be reduced, and the object of the Containers and Packaging Recycling Law can be satisfied.

[0003]

SUMMARY OF THE INVENTION According to the present invention, it is possible to prevent body bending in consideration of the contribution of contents,
An object of the present invention is to provide a cardboard box in which the material (sheet basis weight) of the cardboard can be reduced.

[0004]

According to the present invention, in order to achieve the above object, as shown in the drawing, in a cardboard box with a top and bottom flap, at least one side plate among four side plates forming a body portion includes: Corrugated cardboard characterized by forming a line that easily buckles near the height side of the top or bottom or both flap rules so that the load is directly applied to the contents and can prevent the side plate from bending. It is a box. Further, the present invention, in order to achieve the above object, as shown in the figure, in a wrap round cardboard box, by forming a line that is easily buckled on the side plate near the height side of the body rule on the top surface, A cardboard box characterized in that a load is applied directly to the contents to prevent the side plate from bending.

[0005] In the present invention, the formation of a line that is easily buckled is formed near the flap of the back liner (usually 5 to 50 mm from the flap rule center) after the single-sided corrugated cardboard is manufactured.
Is perforated or partially cut with a rotary blade to form a cut line, and then glued and glued with a glue machine to form a double-faced corrugated cardboard sheet. Further, instead of the cut line of the back liner, the corresponding step of the middle shin may be sequentially or partially cut to form a cut line. Further, the stepped ridge corresponding to the cut line is weakly compressed from the front liner side with a printing (including blank printing) plate and crushed to the extent that the stepped structure is left. From the back liner side, crush to the extent that the step structure is left by compressing it weakly and replace it with the cut line. Between these crush lines and the flap rule (or body rule), crush to the extent that the step structure is left The cut line or the crush line may be used as the negative line. The cut line or the crushing line or the crushing zone may be provided at a position symmetrical to the flap rule or the body rule for another line or another zone.

[0006]

Embodiment 1 An embodiment of the present invention is shown in FIGS. The embodiment of the A-shaped corrugated cardboard box of the present invention includes the respective side plates 11 or 12 and the respective top flaps 21 or 22.
The perforated cut line 31 that cuts the back liner 101 at regular intervals at a position 5 to 50 mm from the fold lines 110 and 120 in the vicinity of the height side of the flap rule 110 or 120 which is each fold line between Is provided. 102 is a front liner, 40 is a middle liner, and 50 is a container, which has a large compressive strength, but deforms with the progress of the load, but there is no quality problem within a certain deformation range.
Therefore, as shown in FIG. 2, when the contents 50 such as bottles indicated by a chain line are packed and packed in an A-shaped cardboard box and stacked, the body cannot withstand a long-term load, and When it comes to a situation where 11 or 12 bends, as shown in FIG. 3, each side plate 11 or 12 buckles at the cut line 31 and the load is directly applied to the container 50 as the contents. As a result, the entire compressive load is shared and received by the contents and the box, so that each side plate 11 or 12 can be prevented from bending.

[0007]

Embodiment 2 In place of the cut line 31 of the back liner 101 of the cardboard box, as shown in FIG. It may be provided. Other configurations and operations are the same as those of the first embodiment of the invention, and a detailed description thereof will not be repeated. In addition, the cut line 41 is the middle shin 40
May be partially cut at a certain interval.

[0008]

Embodiment 3 A cut line 31 of a back liner 101 of a corrugated cardboard box or a cut line 41 of a corrugated cardboard ridge.
Instead, a crushing line 60A or 60B or a crushing zone 60C or 60D by pressing against the front liner 102 or the back liner 101 by the narrow convex rubber plate shown in FIG. 5 or FIG. 6 may be provided. In this case, when using a printing roll, the printing ink may or may not be applied. Other configurations and operations are the same as those of the first embodiment of the invention, and a detailed description thereof will not be repeated.

[0009]

Fourth Embodiment A fourth embodiment of the present invention is shown in FIG. The wrap round type corrugated cardboard box of the present invention is arranged such that, at the side plates 12B and 22B near the height side of the body rule 110B of the top plate 11B, the back liner 101B at a position 5 to 50 millimeters from the body rule 110B has a constant interval. A cut line 31B cut at each perforation is provided. 13B is a ground plane. Therefore, containers such as cans (not shown) are placed in a wrap round cardboard box.
When packed and packed, each side plate 12B, 2
When the 2B comes to a state of bulging, each side plate 12B,
22B buckles at the cut line 31B and can prevent the trunk from bending. As in the first embodiment of the invention, a cut line, a crushing line, or a crushing zone may be provided instead of the cut line 31B.

[0010]

According to the present invention, a double-faced cardboard can be used.
By applying simple processing, the compressive strength of the contents is drawn out to the strength of the entire box without lowering the appearance of the box as a part of the product, and the phenomenon of body bending is eliminated, and The cost can be reduced by reducing the material of the step ball sheet. Furthermore, the reduction of corrugated ball consumption meets the objectives of the Containers and Packaging Recycling Law, which has a significant impact on box sales policies.

[Brief description of the drawings]

FIG. 1 is a partially exploded view of a rear view showing an embodiment of the present invention, with a part cut away.

FIG. 2 is a partially cutaway sectional view showing an internal structure of the box assembled in FIG. 1;

FIG. 3 is an explanatory diagram of a use state of FIG. 2;

FIG. 4 is a partially developed view of another embodiment of the present invention with a part cut away from the back surface.

FIG. 5 is an explanatory view showing a still another embodiment of the present invention, in which a part is cut away and shown in a cross section.

FIG. 6 is an explanatory view showing a still another embodiment of the present invention, with a part cut away and shown in a cross section.

FIG. 7 is a developed view showing another embodiment of the present invention as viewed from the rear surface.

[Explanation of symbols]

 110, 120 Flap rule 110B Body rule 11, 12, 12B, 22B Side plate 31, 31B Cut line 50 Contents 60A, 60B Crush line 60C, 60D Crush zone

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[Procedure amendment]

[Submission date] September 6, 1999 (September 9, 1999)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Figure 2

[Correction method] Change

[Correction contents]

FIG. 2

Claims (2)

[Claims] 1. A cardboard box with a top and bottom flap,
Of the four side plates forming the trunk, at least one side plate is formed with an easily buckling line near the height side of the ceiling or the ground or both flap rules so that the load is directly applied to the contents, A cardboard box characterized in that it is possible to prevent the side plate from bending. 2. In the wrap round type cardboard box, a line which is easily buckled is formed on the side plate near the height side of the body rule on the top surface so that the load is directly applied to the contents. A cardboard box characterized by being able to prevent trunk deflection.