JP2023009442A - Packing box - Google Patents

Abstract

To provide a packing box capable of easily opening a surface sealed with an adhesive or the like.SOLUTION: A packing box 1 includes at least one wall portion formed of a pair of inner flaps 18, 18 and a pair of outer flaps 17, 17. Tip end edges 18a, 18a of the pair of inner flaps 18, 18 are butted against each other, and tip end edges 17a, 17a of the pair of the outer flaps 17, 17 are separated from each other. One outer flap 17 is formed with an outer flap opening break induction line 20 along both of the tip end edges 18a, 18a of the pair of inner flaps 18, 18. The pair of inner flaps 18, 18 are formed with an inner flap opening break induction line 30 extending along the tip end edges 17a, 17a of the other outer flap 17.SELECTED DRAWING: Figure 1

Description

The present invention relates to packaging boxes.

2. Description of the Related Art Conventionally, there are packaging boxes in which an outlet (opening opening) for contained items can be formed.
As an example of such a packaging box, the one disclosed in Patent Document 1 is known.
In the packaging box of Patent Literature 1, the opening is formed in the top plate.

Japanese Patent Application Laid-Open No. 2019-214402

By the way, with the expansion of the use of packaging boxes, there are various needs for opening positions and opening methods.
For example, in the packaging box of Patent Document 1, there is also a need to take out the contained items from the end face where the inner flap and the outer flap are sealed with an adhesive.

However, not only the packaging box of Patent Literature 1, but generally, there is a problem that it is difficult to open the surface sealed with an adhesive, an adhesive tape, or the like.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems and to provide a packaging box that can be easily opened from the surface sealed with an adhesive or the like.

In order to solve the above-described problems, the packaging box of the present invention has at least one wall formed of a pair of inner flaps and a pair of outer flaps. Tip edges of the pair of inner flaps are butted against each other. Tip edges of the pair of outer flaps are separated from each other. One outer flap of the pair of outer flaps is formed with a tear guide line for opening the outer flap along both tip edges of the pair of inner flaps. The pair of inner flaps is formed with a tear guide line for opening the inner flap that extends along the leading edge of the other outer flap of the pair of outer flaps.

In the packaging box of the present invention, the outer flap opening breaking guide wire and the inner flap opening breaking guide wire are cut open by inserting fingers into the leading edge of the pair of inner flaps and pulling open the pair of inner flaps. , one of the outer flaps and the inner flaps are integrated to be opened in a double-sided state. In other words, while the other outer flap remains on the wall, the surface sealed with the other adhesive or the like can be easily opened. Since the other outer flap covers a part of the wall even after the opening, it functions as a stopper to prevent the stored items from falling off when, for example, the box is used to display the stored items. do.

Further, it is preferable that the wall portion sealed by the pair of inner flaps and the pair of outer flaps has a ridgeline breaking guiding line on the ridgeline portion of the one outer flap.

In this configuration, when the pair of inner flaps is pulled open, the tear progresses from the outer flap opening breaking guide line to the ridge line breaking guide line, so the operation of cutting open the pair of inner flaps and one of the outer flaps is easy, The unsealability of the sealing surface is improved.

Moreover, it is preferable that the ridge line breaking guide line is formed from the outer flap opening breaking guide line toward both end portions of the ridge line to a midway portion of the ridge line.

In this configuration, regions without ridgeline breakage guide lines are formed at both end portions in the extending direction of the ridgeline portion. As a result, the strength of the packaging box is improved as compared with the case where the ridgeline breaking guide lines are formed to both end portions in the extending direction of the ridgeline portion. Therefore, it is possible to obtain a packaging box that is excellent in strength when stacked and in strength when dropped.

Moreover, it is preferable that a handle hole is formed in the other outer flap.
In this configuration, a handle hole is formed in the other outer flap that is not formed with the breakage guide wire for opening the outer flap and the breakage guide wire for opening the inner flap. However, there is no danger that the sealing surface will be unsealed.

Further, the wall portion sealed by the pair of inner flaps and the pair of outer flaps includes a rupture guide line for discarding the outer flap formed on the ridge portion of the other outer flap, and a line for discarding the outer flap. It is preferable that the inner flap discarding rupture guide line is formed on both edges of the pair of inner flaps so as to be continuous with the rupture guide line.

In this configuration, the other outer flap can be cut off from the wall portion by cutting open the outer flap discarding rupture guide wire and the inner flap opening rupture guide wire. This allows the packaging box to be dismantled and folded into a flat shape so as not to be bulky for disposal or recycling after use of the packaging box.

According to the packaging box of the present invention, the surface sealed with an adhesive or the like can be easily opened.

It is a perspective view of a packaging box concerning an embodiment of the present invention. FIG. 4 is a plan view showing a blank sheet of the packaging box according to the embodiment of the present invention; It is a front view of a packaging box concerning an embodiment of the present invention. It is a figure explaining the procedure at the time of opening the packaging box which concerns on embodiment of this invention, and is a perspective view which shows the state which turned the front-end surface upward and put the packaging box. FIG. 4 is a diagram for explaining the procedure for opening the packaging box according to the embodiment of the present invention, and is a perspective view showing a state in which the inner flap cut open by the tear guide wire for opening is opened integrally with one of the outer flaps. It is a perspective view which shows the example which opened the front end surface of the packaging box which concerns on embodiment of this invention, and displayed the contained goods. 4(a) and 4(b) are diagrams for explaining the procedure for folding the packaging box according to the embodiment of the present invention for recycling or disposal.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, the front, back, left, right, up and down directions are set for convenience in describing the packaging box, and do not limit the configuration of the packaging box.

As shown in FIG. 1, the packaging box 1 of the present embodiment is a wrap-around rectangular parallelepiped box. The packaging box 1 includes a bottom plate 10, a pair of front and rear end plates 11 and 12, a pair of left and right side plates 13 and 14, and a top plate 15 as wall portions. A pair of front and rear end plates 11 and 12 are formed with an outer flap opening breaking guide wire 20 and an inner flap opening breaking guide wire 30 . Although the items to be stored in the packaging box 1 are not limited, for example, a plurality of beverage bottles can be stored as the items to be stored.

As shown in FIG. 2, the packaging box 1 is formed by mountain-folding or valley-folding a blank sheet S obtained by cutting out one cardboard sheet along each ruled line. The blank sheet S shown in FIG. 2 is arranged so that the outer surface side can be seen. Note that ruled lines are indicated by solid lines.
Each ruled line (folded line) of the blank sheet S is a linear groove (press ruled line) formed by pressing the surface of the blank sheet S. As shown in FIG. Note that a notch (half-cut line or the like) may be formed in the ruled line. By doing so, it becomes easier to fold the blank sheet S at the ruled line.

The bottom plate 10 is a rectangular flat plate, as shown in FIG. A left side plate 13 is connected to the left edge of the bottom plate 10 via a ruled line, and a right side plate 14 is connected to the right edge of the bottom plate 10 via a ruled line.
The left side plate 13 and the right side plate 14 are the same rectangular flat plate and are formed perpendicular to the bottom plate 10 . Side plate holding holes 29 and 29 are formed in the left side plate 13 and the right side plate 14 .

A top plate 15 is connected to the upper edge of the right side plate 14 via a ruled line. The top plate 15 is the same rectangular flat plate as the bottom plate 10 and is formed perpendicular to the right side plate 14 .
A joint piece 16 is connected to the left edge of the top plate 15 via a ruled line. The joint piece 16 is a strip-shaped plate formed along the left edge of the top plate 15 .
The left plate 13, the bottom plate 10, A right side plate 14 and a top plate 15 are formed in a square tube shape.

The front end plate 11 includes a pair of upper and lower outer flaps 17, 17 connected to the front edges of the top plate 15 and the bottom plate 10, respectively, and a pair of left and right flaps connected to the front edges of the left side plate 13 and the right side plate 14, respectively. Inner flaps 18, 18 are provided.
The upper and lower outer flaps 17, 17 are overlapped on the outer surfaces of the left and right inner flaps 18, 18 and are integrally adhered with an adhesive.

As shown in FIG. 3, the upper and lower outer flaps 17, 17 are arranged such that tip edges 17a, 17a are separated from each other in the vertical direction. Each of the tip edges 17a, 17a is formed in a substantially wavy shape in which gentle arc-shaped unevenness continues. As will be described later, the inner flaps 18, 18 and the lower outer flap 17 are separated from the inner flap 18, 18, and 17 by the inner flap opening breaking guide wire 30. Each of the 18 upper edges can be tacked. This temporary fixing makes it easier to take out the contained item (beverage bottle).
The upper outer flap 17 covers upper sides of the left and right inner flaps 18 , 18 . A handle hole 25 is formed in the center portion of the upper outer flap 17 in the left-right direction. The handle hole 25 has cut lines 25a, 25a (see FIG. 3) extending upward from the tip edge 17a as a base end, and a folding ruled line 25b formed so as to extend between the ends of the cut lines 25a, 25a. , are partitioned by.

The outer flap 17 on the lower side is formed with a single tear guide wire 20 for opening the outer flap extending in the vertical direction. The tear guide wire 20 for opening the outer flap is formed of a perforated cut line. The outer flap opening tear guide wire 20 extends vertically in the center of the lower outer flap 17 in the left-right direction, and as shown in FIGS. , 18 so as to overlap both leading edges 18a, 18a. Such outer flap opening tear guide wire 20 functions as a dividing line that divides the lower outer flap 17 into left and right parts.

On the other hand, the left and right inner flaps 18, 18 are arranged such that the tip edges 18a, 18a are butted against each other in the left-right direction. The dimensions of the blank sheet S are set so that the leading edges 18a, 18a of the left and right inner flaps 18, 18 are in contact with each other. Such forms are also included in the expression "the distal edges 18a, 18a are abutted".

Both tip edges 18a, 18a of the left and right inner flaps 18, 18 are formed with finger-insertion portions 28, 28 that serve as starting points for opening the left and right inner flaps 18, 18 to the left and right. The finger insertion part 28 is defined by upper and lower cut lines 28a, 28a and a folding ruled line 28b formed so as to extend between the ends of the cut lines 28a, 28a. Each finger insertion portion 28 has a substantially trapezoidal shape with the tip edge 18a as the lower base and the folding ruled line 28b as the upper base. When the fingers are inserted into the finger-putting portions 28, 28, the finger-putting portions 28, 28 are opened to the left and right with both tip edges 18a, 18a as boundaries.

The left and right inner flaps 18, 18 are formed with one inner flap opening tear guide wire 30 extending in the left-right direction. The inner flap opening rupture guide wire 30 is formed of a cut line 31 and a break line 32 continuing from the cut line 31 . The inner flap opening tear guide wire 30 extends in the left-right direction along the tip edge 17a of the upper outer flap 17 above each finger insertion portion 28, and as shown in FIG. It is parallel to the edge (upper ridge fracture guide line 34). As shown in FIGS. 1 and 3, the tear guide wire 30 for opening the inner flap has a cut line 31 at a portion that intersects both tip edges 18a, 18a in the left-right direction when viewed from the front. A portion is a broken line 32 . The tear line 32 extends to both edges of the left and right inner flaps 18,18.

Further, in the left and right inner flaps 18 , 18 , inner flap handle holes 19 are formed at positions corresponding to the handle holes 25 of the upper outer flap 17 . The inner flap handle hole 19 is defined by cut lines 19a, 19a (see FIG. 2) and a folding ruled line 19b.

The upper edge portion (ridge portion) of the front end plate 11 is formed with an upper ridge breaking guide line 34 that is a perforated cut. The upper ridge line breaking guide line 34 extends over the entire upper edge (ridge line).
Both edges of the left and right inner flaps 18 , 18 are formed with edge break guide lines 33 , 33 so as to be continuous with both ends of the upper ridgeline break guide line 34 . The edge break guide wires 33, 33 extend downward along both edges of the inner flaps 18, 18 and are connected to both ends of the inner flap opening break guide wire 30 (break line 32).

At the lower edge (ridgeline) of the front end plate 11, a lower ridgeline breaking guide line 35 is formed as a perforated cut. The lower ridge breaking guide wire 35 is connected to the lower end of the outer flap opening breaking guide wire 20 and extends to both the left and right sides along the lower edge (ridge line) of the front end plate 11 . The left and right extending ends of the lower ridge line breaking guide line 35 are positioned in the middle of the left and right portions of the lower edge portion (ridge line portion). That is, the lower ridge line breaking guide line 35 extends from the outer flap opening breaking guide line 20 toward both ends (corners) of the lower edge (ridge line) of the front end plate 11 to the left and right of the lower edge (ridge line). It is formed up to the middle part. As a result, the left and right shoulder portions 35a, 35a of the lower edge portion (ridge portion) of the front end plate 11 have regions where the lower ridge line breaking guide line 35 is not formed. In other words, the lower ridgeline break guide line 35 is not formed on the entire lower edge that is broken when unsealed.

The rear end plate 12 has the same configuration as the front end plate 11 . Similarly to the front end plate 11 , the rear end plate 12 has an outer flap opening breaking guide wire 20 extending in the vertical direction, an inner flap opening breaking guide wire 30 extending in the left and right direction, and a finger insertion portion 28 . formed.

Next, the action when the packaging box 1 is unsealed will be described with reference to FIGS. 4 and 5. FIG. Below, the case where the front end plate 11 of the packaging box 1 is opened is illustrated.
First, as shown in FIG. 4, the packaging box 1 is placed vertically so that the front end plate 11 faces upward so that the front end plate 11 can be easily opened.

When opening the front end plate 11, the fingers are inserted into the finger insertion portions 28, 28, and the front ends of the inner flaps 18, 18 and one outer flap 17 are grasped and pulled open left and right. Then, a tear is formed along the outer flap opening breaking guide line 20, the lower edge of the lower outer flap 17 is broken by the lower ridge line breaking guide line 35, and the pair of inner flaps 18, 18 are broken. It is broken and separated by the inner flap opening breaking guide wire 30 .
As a result, as shown in FIG. 5, the upper outer flap 17 is left uncut, while the other inner flaps 18, 18 and the lower outer flap 17 are integrated to be opened in a double-opening state.

Since the upper outer flap 17 remains in a state of covering a part of the front end plate 11 even after opening, as shown in FIG. It functions as a stopper for regulating the falling off.

After use of the packaging box 1, when dismantling and folding the packaging box 1 for disposal or recycling, both upper outer flaps 17, 17 are cut off from the opening surface as shown in FIG. The cutting of each outer flap 17 can be easily performed by cutting open the edge fracture guide lines 33, 33 and the upper ridge fracture guide line 34 (see FIG. 3). After cutting off the upper outer flaps 17, 17, the top plate 15 and right plate 14 are folded over the left plate 13 and bottom plate 10 to flatten as shown in FIG. 7(b).

According to the packaging box 1 of the present embodiment described above, by inserting fingers into the finger insertion portions 28, 28 and performing an operation of pulling open the pair of inner flaps 18, 18, the breaking guide wire 20 for opening the outer flap is opened. And the inner flap unsealing rupture guide wire 30 is cut open, and the lower outer flap 17 and the inner flaps 18, 18 are integrated and unsealed in a double-sided state. In other words, while the upper outer flap 17 is left on the front end plate 11, the other surfaces sealed with an adhesive or the like can be easily opened. The upper outer flap 17 can prevent the contained articles P from unexpectedly falling off.

In addition, when the pair of inner flaps 18, 18 are pulled open, the tear progresses from the outer flap opening breaking guide line 20 to the lower ridgeline breaking guide line 35, so the pair of inner flaps 18, 18 and one lower outer The operation of cutting open the flap 17 is easy, and the unsealability of the sealing surface is improved.
Further, since the lower ridgeline breaking guide line 35 extends in the extending direction of the ridgeline portion of the lower outer flap 17 and is formed up to an intermediate portion of the ridgeline portion, the ridgeline is formed at both ends in the extending direction of the ridgeline portion. Regions (left and right shoulder portions 35a, 35a) without the fracture guide line 35 are formed. As a result, the strength of the packaging box 1 is improved as compared with the case where the lower ridge line breaking guide line 35 is formed to both ends in the extending direction of the ridge line. Therefore, it is possible to obtain the packaging box 1 that is excellent in strength when stacked and in strength when dropped.

In addition, since the handle hole 25 is formed in the upper outer flap 17 in which the outer flap opening breaking guide wire 20 and the inner flap opening breaking guide wire 30 are not formed, the handle hole 25 can be held by the gripping portion during transportation or the like. Even if it is used as such, there is no risk that the sealing surface will be unsealed.

Further, the upper outer flaps 17, 17 can be cut off from the front end plate 11 and the rear end plate 12 by cutting open the outer flap disposal rupture guide wire and the inner flap opening rupture guide wire. As a result, the packaging box 1 can be dismantled and folded into a flat shape so as not to be bulky for disposal or recycling after the packaging box 1 is used.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the invention.
For example, in the above embodiment, the upper outer flap 17 is configured to remain on the unsealing surface, but the present invention is not limited to this. The position may be turned upside down so that the lower outer flap 17 remains on the unsealing surface.

Also, the shape of the handle hole 25 may be of various shapes as long as it is possible to insert a finger into the opening to perform the opening operation. In this case, the pair of outer flaps 17, 17 may have different shapes.

In the above-described embodiment, the present invention is applied to the wraparound type packaging box 1, but the present invention is not limited to this. The present invention may be applied to an A-type packaging box.

Moreover, although the blank sheet S of the packaging box 1 of the above embodiment is made of cardboard, the blank sheet may be formed of various known paperboards.

1 packaging box 11 end plate (wall)
17 Outer flap 17a Tip edge 18 Inner flap 18a Both tip edges 20 Outer flap opening breaking guide line 28 Finger insertion part 29 Handle hole 30 Inner flap opening breaking guide line 33 Edge break guide line 34 Upper ridge line break guide line 35 Bottom Side ridge break guide line P Contents S Blank sheet

Claims (5)

A packaging box in which at least one wall is formed by a pair of inner flaps and a pair of outer flaps,
Tip edges of the pair of inner flaps are butted against each other,
Tip edges of the pair of outer flaps are separated from each other,
One outer flap of the pair of outer flaps is formed with a tear guide line for opening the outer flap along both tip edges of the pair of inner flaps,
A packaging box, wherein the pair of inner flaps is formed with a tear guide line for opening the inner flap extending along the leading edge of the other outer flap of the pair of outer flaps. 2. The wall portion sealed by the pair of inner flaps and the pair of outer flaps is provided with a ridge line breaking guide line on the ridge portion of the one outer flap. packaging box. 3. The packaging box according to claim 2, wherein the ridge line breaking guide line is formed from the outer flap opening breaking guide line toward both end portions of the ridge line to an intermediate portion of the ridge line. 4. The packaging box according to any one of claims 1 to 3, wherein a handle hole is formed in said other outer flap. The wall portion sealed by the pair of inner flaps and the pair of outer flaps,
a breaking guide line for discarding the outer flap formed on the ridge of the other outer flap;
and an inner flap disposal rupture guide line formed at both edges of the pair of inner flaps continuously with the outer flap disposal rupture guide line. The packaging box according to any one of items 1 and 2.

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