JP7437149B2 - packaging box - Google Patents

Description

The present invention relates to a packaging box for accommodating PET bottles, cans, and the like filled with beverages.

Conventionally, for example, as shown in Patent Document 1, the contents are placed on a cardboard blank and the blank is folded along the ruled lines so as to wrap the contents, so that the packaging of the contents is completed at the same time as the box is assembled. Around-type packaging boxes are known.

In the wraparound packaging box disclosed in Patent Document 1, a rectangular parallelepiped shape is formed by opposing long side walls (long side plates), opposing short side walls (short side plates), a top plate, and a bottom plate, A series of horizontally extending breaking lines (lower breakable line, inner lap breakable line) are formed on the long side wall and the short side wall.

After unpacking, the lower half of the packaging box can be used as a display case and placed on a display shelf to display products. This type of packaging box is also known as shelf-ready packaging.

JP2017-95137A

In the wraparound packaging box as disclosed in Patent Document 1 mentioned above, a series of break lines extending horizontally across the long and short side walls serve as a starting point for dividing the box into upper and lower parts. Therefore, it is an important element. That is, the shape of the break line affects the ease with which the box can be divided.

It is preferable that the break line be easily visible when the packaging box is unpacked. This is because the stress of finding the break line can be reduced by making it easy to locate the break line.

For example, in the configuration of Patent Document 1, the lower breakable line of the long side wall and the inner lap breakable line of the short side wall are all exposed to the outside, so it can be said that the arrangement is easy to visually recognize.

However, there are concerns that unintended breaks may occur, such as a finger accidentally getting into the break line during transportation and causing the break, or a break occurring at the break line due to the load from a fall or the load being carried. .

Since the break lines are made up of a series of lines, a break that occurs at one point can propagate and cause a large tear, and depending on the situation, the packaging box may be split into upper and lower parts, making it difficult to withstand transportation. This will result in a situation where there is no such thing.

In view of the above problems, the present invention proposes a new form for the break line formed on the side wall of a wraparound packaging box.

The problem to be solved by the present invention is as described above, and next, means for solving this problem will be explained.

According to one aspect of the invention,
inner flaps facing in the first direction;
an outer flap facing in a direction perpendicular to the first direction and covering the outside of the inner flap;
two first side walls consisting of are arranged oppositely,
A packaging box in which two second side walls each made of one side plate are arranged to face each other,
each inner flap is located at each end of each side plate;
A series of break lines are provided across the inner flap and side panels,
A part of the break line provided on the inner flap is configured as a non-exposed area covered by the outer flap,
A part of the break line provided on the inner flap is configured as an exposed area portion without being covered by the outer flap,
A packaging box is provided in which a gap is formed between opposing outer flaps and an exposed area is disposed in the gap.

Further, according to one aspect of the present invention,
The break line formed on the side plate is
It is formed horizontally at a position shifted to one side from approximately the center in the height direction of the side plate,
The break line formed on the side plate is
It is assumed that it is provided so as to be continuous with the non-exposed area of the break line formed on the inner flap.

According to one aspect of the invention,
The length of each penetration line that makes up the break line formed on the inner flap is:
Longer than the length of each penetration line that makes up the break line formed on the side plate,
That's it.

According to one aspect of the invention,
The total length of each penetration line that constitutes the break line located in the non-exposed area,
The total length of each penetration line that constitutes the break line in the exposed area,
The ratio of
In the range of 4:1 to 1:1,
That's it.

According to one aspect of the present invention, unintended breakage can be prevented in the non-exposed region, and visibility of the break line can be ensured in the exposed region. Further, according to one aspect of the present invention, a space for forming a gap can be secured by designing the outer flap, and a configuration having an exposed region and a non-exposed region can be easily secured.

Further, by covering the non-exposed region with the outer flap, it can be protected from external impact, and it is possible to prevent unintentional breakage in the non-exposed region.

Further, according to one aspect of the present invention, the visibility of the exposed area of the break line appearing in the gap is improved, and when opening the package, it is possible to immediately find the exposed area where force should be applied. This makes it possible to realize a configuration that is easy to open.

Further, according to one aspect of the present invention, the total length of each through line arranged in the non-exposed area and the total length of each through line arranged in the exposed area are set to optimal values. This makes it possible to both ensure the visibility of the break line in the exposed area and to prevent the break line from breaking in the non-exposed area.

FIG. 1 is a perspective view of a packaging box according to an embodiment of the present invention. It is a developed view before assembling a packaging box. It is a figure explaining the structure of a short side wall. It is a figure which shows the state where the packaging box was opened and the display tray was constructed. (A) is a diagram showing an example of a breaking line. (B) is a diagram showing another example of the breaking line. (C) is a diagram showing another example of the breaking line.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of the appearance of a packaging box 2 according to an embodiment of the present invention, and FIG. 2 is a developed view of the packaging box 2.

In the following description, for convenience, the direction of arrow Y in FIGS. 1 and 2 will be referred to as the vertical direction or the height direction. Similarly, the directions of arrows X, X1, and X2 in FIGS. 1 and 2 are defined as the left-right direction, horizontal direction, or lateral direction.

As shown in FIG. 1, the packaging box 2 is configured in the shape of a rectangular parallelepiped box, and the surface that appears on the near side of the packaging box 2 in FIG. 1 becomes the short side wall 40, and the surface that appears in the depth direction. becomes the long side wall 50. Further, the upper surface of the packaging box 2 is constituted by a top plate 60, and the lower surface is constituted by a bottom plate 70. In this embodiment, the packaging box is configured to have a rectangular parallelepiped shape, but the present invention is also applicable to a cubic shape.

As shown in FIG. 1, the short side wall 40 of the packaging box 2 is comprised of upper and lower outer flaps 31a, 32a and inner flaps 33a, 34a inside thereof.

As shown in FIG. 1, the long side wall 50 of the packaging box 2 is composed of a single plate-shaped side plate 51.

Note that the configurations of the short side wall 40 and the long side wall 50 may be reversed. That is, the long side wall 50 may be configured by a combination of the inner flaps 33a, 34a and the outer flaps 31a, 32a, and the short side wall 40 may be configured by the side plate 51. Further, the present invention is also applicable to a configuration in which the width of the short side wall 40 (in the direction of arrow X1) is wider than the width of the long side wall 50 (in the direction of arrow X2) in FIG.

As shown in FIG. 2, in a blank state before assembling the packaging box 2, the side plates 51, the bottom plate 70, the side plates 52, and the top plate 60 are arranged continuously in one direction with ruled lines serving as folds. . Each board is made of so-called cardboard, which is made by sandwiching a corrugated paper (flute) between outer papers on both sides, or various types of cardboard.

As shown in FIG. 2, one side plate 51 is provided with a long piece-shaped joint 53 for overlapping and connecting to the surface of the top plate 60 via a ruled line serving as a fold. Moreover, inner flaps 33a and 33b are provided at both ends of one side plate 51 in the lateral direction, respectively, with ruled lines serving as folds interposed therebetween. In the side plate 51, a continuous breaking line 6 is formed in the width direction. The breaking line 6 is intended to be broken by inserting a finger, and may be formed in a straight line or in a curved line, or by inserting a finger to form the starting point of the break. It is also possible to provide a handhold portion for the purpose.

As shown in FIG. 2, inner flaps 34a and 34b are provided at both ends of the other side plate 52 in the lateral direction, respectively, with ruled lines serving as folds interposed therebetween. Similarly, a breaking line 6 is formed on the side plate 52 as well.

As shown in FIG. 2, outer flaps 31a and 31b are provided at both ends of the top plate 60 in the lateral direction, respectively, with ruled lines serving as folds interposed therebetween.

As shown in FIG. 2, outer flaps 32a and 32b are provided at both ends of the bottom plate 70 in the lateral direction, respectively, with ruled lines serving as folds interposed therebetween.

When packaging the product in a packaging box, the product is placed on the bottom plate 70 shown in FIG. 2 and folded along each ruled line, so that the product is accommodated in the packaging box. Examples of products include plastic bottle containers filled with beverages, can containers, and the like.

During this packaging, the outer flaps 31a, 32a are placed over the outer sides of the inner flaps 33a, 34a, and the inner flaps 33a, 34a are adhered to the outer flaps 31a, 32a by the adhesive between them.

Similarly, the outer flaps 31b, 32b are placed over the outer sides of the inner flaps 33b, 34b, and the inner flaps 33b, 34b and the outer flaps 31b, 32b are bonded together by the adhesive between them.

Further, the edge of the top plate 60 is covered with the passage 53, and the top plate 60 and the passage 53 are bonded together by the adhesive between them.

FIG. 3 shows the assembled packaging box, and the lower edge of the outer flap 31a arranged on the upper side in FIG. A protruding portion 31e that protrudes below the horizontal portion 31d is formed.

Similarly, the upper edge of the outer flap 32a arranged on the lower side in FIG. is formed.

As shown in FIG. 3, when the packaging box is assembled, the protrusions 31e and 32e face each other and are close to each other, while a gap 42 is formed between the upper and lower horizontal parts 31d and 32d. Ru. In this embodiment, the gap portion 42 is formed in the shape of a substantially U-shape turned sideways.

In addition, in each of the outer flaps 31a and 32a, the protruding parts 31e and 32e may not be formed, and the left and right horizontal parts 31d and 32d may be continuous with each other.

As shown in FIG. 3, by forming the gap portions 42 on the left and right sides of the short side wall 40, parts of the inner flaps 33a, 34a are exposed in the gap portions 42. In the non-exposed portions, as described above, the outer surfaces of the inner flaps 33a, 34a and the inner surfaces of the outer flaps 31a, 32a are bonded with adhesive.

As shown in FIGS. 2 and 3, a break line 5 is formed in the inner flap 33a. This breaking line 5 is formed in the horizontal direction (direction of arrow X in FIG. 3) in the assembled state, and one end is continuous with the breaking line 6 formed in the side plate 51 constituting the long side wall 50, and the other end is continuous with the breaking line 6 formed in the side plate 51 constituting the long side wall 50. The end reaches the vertical side 33y of the inner flap 33a. Note that the breaking line 5 is similarly formed on the other inner flap 33b on the opposite side of the inner flap 33a with the side plate 51 in between.

Each of the breaking lines 5 and 6 is a so-called dotted line perforation, and is constructed by continuously arranging linear penetration portions penetrating in the plate thickness direction at intervals.

With the above configuration, a series of break lines 5 and 6 are formed across the long side wall 50 and the short side wall 40 as shown in FIG. As shown in FIG. The packaging box 2 can be divided into upper and lower parts, and the display tray 3 can be configured with the portion remaining on the lower side.

As shown in FIGS. 5A, 5B, and 5C, a part of the break line 5 formed on the inner flap 33a is exposed in the gap 42, and a part of the break line 5 is exposed in the outer flap 31a, 32a. configured to be obscured by

Specifically, in the configuration shown in FIG. 5(A), the break line 5 constitutes an arcuate line that bulges upward, and the bulging portion is exposed outside through the gap 42, and the portions at both ends are bulged downward. It is hidden by an outer flap 32a.

In the configuration shown in FIG. 5(B), the breaking line 5 constitutes a straight line that slopes so that the end on the center side (the left side in FIG. 5(B)) of the short side wall 40 is at a high position, and 40 is exposed to the outside from the gap 42, and the long side wall 50 side is hidden by the lower outer flap 32a.

In the configuration of FIG. 5(C), the break line 5 constitutes an arcuate line that swells downward so that the end of the short side wall 40 on the center side (the left side in FIG. 5(B)) is at a high position. The center portion of the short side wall 40 is exposed to the outside through the gap 42, and the portion on the long side wall 50 side is hidden by the lower outer flap 32a.

Further, as shown in FIG. 5A, the break line 6 formed in the side plate 51 constituting the long side wall 50 is located below the vertical center H of the packaging box in the height direction of the side plate 51. It will be placed at a different position.

As a result, as shown in FIGS. 5A to 5C, at least a portion near the side plate 51 at the break line 5 is hidden by the lower outer flap 32a and becomes a non-exposed region portion 5b.

By configuring the non-exposed area portion 5b as described above, it is possible to form an area that is not exposed to the outside at the corner K of the packaging box at the series of break lines 5 and 6, and the non-exposed area portion 5b It is possible to prevent unintentional tears from occurring starting from this point.

Further, in FIGS. 5A to 5C, an adhesive (hot melt adhesive) is applied to the region where the inner flap 33a and the outer flap 32a overlap. For this reason, there is a concern that the breakability of the non-exposed region 5b hidden by the lower outer flap 32a at the break line 5 will deteriorate; This ensures good unsealability.

In addition, if the packaging box 2 falls or an unintended break occurs in another part due to poor breakability of the non-exposed area 5b hidden by the lower outer flap 32a, the It becomes possible to prevent the wire from breaking in the exposed region portion 5b.

For example, the side plate 51 has a large area and is prone to unintentional tearing at the break line 6 due to damage during dropping or transportation. It becomes possible to prevent the running of the tear in the non-exposed area portion 5b, and it is possible to prevent the packaging box 2 from being completely opened.

In addition, in FIGS. 5A to 5C, the length of the linear through line 5c forming the breaking line 5 disposed on the short side wall 40 is the same as the length of the linear through line 5c forming the breaking line 6 disposed on the long side wall 50. It is preferable to make the length longer than the linear through line 6c.

According to this, the visibility of the exposed area 5a of the break line 5 appearing in the gap 42 is improved, and when opening the package, it is possible to immediately find the exposed area 5a where force should be applied. Therefore, it is possible to realize a configuration that is easy to open.

The present invention can be realized as described above.
That is, as shown in FIGS. 1 to 5,
Inner flaps 33a and 34a facing each other in the first direction;
Outer flaps 31a, 32a facing in a direction perpendicular to the first direction and covering the outside of the inner flaps 33a, 34a;
Two first side walls (short side walls 40) consisting of are arranged oppositely,
A packaging box 2 in which two second side walls (long side walls 50) each made of one side plate 51 are arranged to face each other,
Each inner flap 33a, 34a is arranged at both ends of each side plate 51,
A series of breaking lines 5 and 6 are provided across the inner flaps 33a and 34a and the side plate 51,
A part of the breaking line 5 provided on the inner flaps 33a, 34a is configured as a non-exposed area portion 5b covered by the outer flaps 31a, 32a,
A part of the breaking line 5 provided on the inner flaps 33a, 34a is not covered by the outer flaps 31a, 32a, and is configured as an exposed area portion 5a,
A gap 42 is formed between the opposing outer flaps 31a and 32a, and the exposed region 5a is arranged in the gap 42.

With this configuration, unintended breakage can be prevented in the non-exposed region 5b, and visibility of the break line can be ensured in the exposed region 5a. Furthermore, the design of the outer flaps 31a and 32a allows a space for forming the gap 42 to be secured, and a configuration having the exposed area 5a and the non-exposed area 5b can be easily secured.

In addition, as shown in FIGS. 1 to 4,
The breaking line 6 formed on the side plate 51 is
It is formed in the horizontal direction at a position shifted to one side from approximately the center in the height direction of the side plate 51,
The breaking line 6 formed on the side plate 51 is
It is provided so as to be continuous with the non-exposed area portion 5b of the break line 5 formed on the inner flaps 33a, 34a.

With this configuration, even when an unintended tear occurs at the break line 6 of the side plate 51, the line of the tear can be blocked in the non-exposed area 5b, and the packaging box 2 can be completely opened. This can be prevented. Further, by covering the non-exposed region 5b with the outer flaps 31a and 32a, it can be protected from external impact, and it is possible to prevent unintentional breakage in the non-exposed region.

Furthermore, as shown in FIGS. 5(A) to 5(C), the length of each through line 5c constituting the breaking line 5 formed on the inner flaps 33a and 34a is the same as that of the breaking line 6 formed on the side plate 51. It is assumed that the length is longer than each of the constituent through lines 6c.

With this configuration, the visibility of the exposed area 5a of the break line 5 appearing in the gap 42 is improved, and when opening the package, it is possible to immediately find the exposed area 5a where force should be applied. This makes it possible to realize a configuration with excellent opening properties.

Further, as shown in FIGS. 5(A) to 5(C), the total length of each through line 5c constituting the breaking line 5 disposed in the non-exposed area portion 5b and the breaking line in the exposed area portion 5a. It is preferable that the ratio between the total length of each through line 5c constituting 5 is in the range of 4:1 to 1:1.

In this way, by setting the total length of each penetration line 5c arranged in the non-exposed area part 5b and the total length of each penetration line 5c arranged in the exposed area part 5a to an optimal value, It is possible to ensure both the visibility of the break line 5 in the exposed area and the prevention of breakage of the break line 5 in the non-exposed area.

2 Packaging box 3 Display tray 5 Breaking line 5a Exposed area 5b Non-exposed area 5c Penetrating part 6 Breaking line 6c Penetrating part 31a Outer flap 32a Outer flap 31d Horizontal part 31e Projecting part 33a Inner flap 34a Inner flap 40 Short side wall 42 Gap 50 Long side wall 51 Side plate 52 Side plate 53 Passage 60 Top plate 70 Bottom plate

Claims (3)

inner flaps facing in the first direction;
an outer flap facing in a direction perpendicular to the first direction and covering the outside of the inner flap;
two first side walls consisting of are arranged oppositely,
A packaging box in which two second side walls each made of one side plate are arranged to face each other,
Each of the inner flaps is arranged at both ends of each of the side plates,
a series of break lines are provided across the inner flap and the side plate;
A part of the breaking line provided on the inner flap is configured as a non-exposed area covered by the outer flap,
A part of the break line provided on the inner flap is configured as an exposed area portion without being covered by the outer flap,
A gap is formed between the opposing outer flaps, and the exposed area is arranged in the gap,
The gap portion has a substantially U-shaped shape lying on its side,
The breaking line formed on the side plate is
It is formed in the horizontal direction at a position shifted to one side from approximately the center in the height direction of the side plate,
The breaking line formed on the side plate is
provided so as to be continuous with the non-exposed region of the break line formed on the inner flap;
packaging box. The length of each through line constituting the breaking line formed on the inner flap is:
longer than the length of each through line forming the breaking line formed on the side plate;
The packaging box according to claim 1, characterized in that: the total length of each through line forming the breaking line arranged in the non-exposed area;
The total length of each through line forming the breaking line in the exposed area portion;
The ratio of
In the range of 4:1 to 1:1,
The packaging box according to claim 1 or 2 , characterized in that: