JP2022064745A - Packaging box - Google Patents

Abstract

To provide a packaging box whose surface sealed with an adhesive can be easily opened.SOLUTION: A packaging box 1 has at least one wall part formed of a pair of inner flaps 18 and 18 and a pair of outer flaps 17 and 17. In the pair of outer flaps 17 and 17, tip edges 17a and 17a are abutted to each other. In both of the tip edges 17a and 17a, each finger insertion part 19 is formed. In the pair of outer flaps 17 and 17, break induction lines 20 for opening are formed astride the pair of outer flaps 17 and 17. The break induction lines 20 for opening cross both of the finger insertion parts 19 and 19 and extend along both tip edges 18a and 18a of the pair of inner flaps 18 and 18.SELECTED DRAWING: Figure 1

Description

The present invention relates to a packaging box.

Conventionally, there is a packaging box that can form an outlet (opening port) for contained items.
As an example of such a packaging box, the one disclosed in Patent Document 1 is known.

In the packaging box of Patent Document 1, an opening is formed on the top plate.

Japanese Unexamined Patent Publication No. 2019-214402

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

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

An object of the present invention is to solve the above-mentioned problems and to provide a packaging box capable of easily opening a surface sealed with an adhesive or the like.

In order to solve the above problems, the packaging box of the present invention is a packaging box in which at least one wall portion is formed of a pair of inner flaps and a pair of outer flaps. The tip edges of the pair of outer flaps are butted against each other, and finger insertion portions are formed on both tip edges. The pair of outer flaps is formed with a breaking guide wire for opening so as to extend over the pair of outer flaps. The opening breaking guide line intersects the finger insertion portions and extends along both tip edges of the pair of inner flaps.

In the packaging box of the present invention, by inserting fingers into both finger insertion portions and pulling open a pair of outer flaps, a breaking guide wire for opening is cut open, and the outer flap and the inner flap are integrated into a double door. It is opened to the state. That is, the outer flap and the inner flap can be opened at the same time, and the surface sealed with an adhesive or the like can be easily opened.

Further, it is preferable that the wall portion formed by the pair of inner flaps and the pair of outer flaps is provided with a ridge line breaking guide line at the ridge line portion of the pair of outer flaps. In this case, it is preferable that the ridge line breaking guide line extends in the extending direction of the ridge line portion and is formed up to an intermediate portion of the ridge line portion in succession to the opening breaking guide line.

In this configuration, when the pair of outer flaps is pulled open, a rift progresses from the opening break guide line to the ridge line break guide line, so that the operation of opening the pair of outer flaps is easy and the openability of the sealing surface is improved. do.
Further, since the ridgeline breaking guide line extends in the extending direction of the ridgeline portion and is formed up to the middle portion of the ridgeline portion, a region without the ridgeline breaking guiding line is formed at both ends of 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 line is formed up to both ends in the extending direction of the ridgeline portion. Therefore, a packaging box having excellent strength at the time of stacking and strength at the time of dropping can be obtained.

Further, in the configuration including the top plate, the bottom plate, and the left side plate and the right side plate connecting the top plate and the bottom plate, the pair of inner flaps are connected to the left side plate and the right side plate, and the pair is provided. The outer flap is preferably connected to the top plate and the bottom plate. In this case, the ridgeline breaking guide line is formed on the ridgeline portion of the top plate and the outer flap, and the top plate rises upward via the ridgeline portion and functions as a grip portion. It is preferable that the portion is formed.

With this configuration, the rising piece is connected to the outer flap of the sealing surface via the region of the ridgeline portion where there is no ridgeline breakage guide line. Therefore, for example, the packaging box of the present invention is housed in the outer box. Even if the rising piece is used as a gripping portion when it is taken out from the outer box or when it is transported, there is no possibility that it will be separated from the outer flap of the sealing surface.

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

It is a perspective view which looked at the packaging box which concerns on 1st Embodiment of this invention from the front upper left. It is a top view which shows the blank sheet of the packaging box which concerns on 1st Embodiment of this invention. It is a front view of the packaging box which concerns on 1st Embodiment of this invention. It is a figure explaining the procedure at the time of opening the packaging box which concerns on 1st Embodiment of this invention, and is the perspective view which shows the state which put the packaging box face up front end face. It is a figure explaining the procedure at the time of opening the packaging box which concerns on 1st Embodiment of this invention, and is the perspective view which shows the state which opened the outer flap which was cut open by the zipper integrally with the inner flap. It is a top view which shows the blank sheet of the packaging box which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the state which the front and back of the top plate of the packaging box which concerns on 2nd Embodiment of this invention are partially opened.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In each of the following embodiments, the overlapping portions are designated by the same reference numerals, and the overlapping description will be omitted.
Further, in the following description, the front-back, left-right, up-down directions are set for convenience in explaining the packaging box, and do not limit the configuration of the packaging box.

(First Embodiment)
As shown in FIG. 1, the packaging box 1 of the present embodiment is a wraparound 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 breaking guide wire 20 for opening is formed on the pair of front and rear end plates 11 and 12. The contained items to be stored in the packaging box 1 are not limited, but for example, a plurality of PET bottles can be stored as contained items.

As shown in FIG. 2, the packaging box 1 is formed by folding a blank sheet S obtained by cutting out a single corrugated cardboard sheet into mountain folds or valley folds at each ruled line. The blank sheet S shown in FIG. 2 is arranged so that the outer surface side can be seen.
Each ruled line (folded line) of the blank sheet S is a linear groove (ruled line) formed by pushing the surface of the blank sheet S. A notch (half-cut line, etc.) may be formed in the ruled line. By doing so, it becomes easy to bend the blank sheet S at the ruled line.

As shown in FIG. 1, the bottom plate 10 is a quadrangular flat plate. 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 flat plates of the same quadrangle, and are formed perpendicular to the bottom plate 10.

A top plate 15 is continuously provided on the upper edge of the right side plate 14 via a ruled line. The top plate 15 is the same quadrangular flat plate as the bottom plate 10, and is formed perpendicular to the right side plate 14.
A joining piece 16 is continuously provided on 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.
By bending the blank sheet S (see FIG. 2) along each ruled line and joining the joining pieces 16 connected to the left edge of the top plate 15 to the outer surface of the upper part of the left side plate 13, the left side plate 13, the bottom plate 10, and the bottom plate 10 are joined. The right side plate 14 and the top plate 15 are formed in a square tube shape.

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

The upper and lower outer flaps 17 and 17 are arranged so that the tip edges 17a and 17a are butted against each other in the vertical direction. A notch line L25 (see FIG. 3) forming a hook hole 25 is formed on the upper outer flap 17.
The blank sheet S is made so that the tip edges 17a and 17a of the upper and lower outer flaps 17 and 17 fit perfectly with each other, but a slight gap is formed between the tip edges 17a and 17a in the assembled state. Therefore, the expression "the tip edges 17a and 17a are butted against each other" includes such a form.

On the other hand, the left and right inner flaps 18 and 18 are arranged so as to be spaced apart from each other so that the tip edges 18a and 18a do not abut each other in the left-right direction. As shown in FIG. 2, the left and right inner flaps 18 and 18 have notch pieces 18c and 18c partitioned by arcuate notches 18b and 18b at positions corresponding to the handle holes 25 of the upper outer flap 17. It is formed. The cut pieces 18c and 18c are cut open by the fingers inserted into the hook holes 25.

The upper and lower outer flaps 17 and 17 are formed with finger insertion portions 19 and 19 which are starting points when the opening break guide wire 20 is cut open on both tip edges 17a and 17a. The finger insertion portion 19 includes left and right bent ruled lines 19a and 19a, and a cut line 19b formed so as to extend between the ends of the bent ruled lines 19a and 19a.

On the upper and lower outer flaps 17 and 17, one opening breaking guide wire 20 is formed so as to extend in the vertical direction. The opening breaking guide wire 20 is formed of a perforated cut line. The opening break guide line 20 extends in the vertical direction at the central portion in the left-right direction of the front end plate 11, and as shown in FIGS. 1 and 3, the finger insertion portions 19 and 19 are vertically extended when viewed from the front. (Cross) and extend so as to overlap the slit-shaped gap S1 formed between the two tip edges 18a and 18a of the pair of inner flaps 18 and 18. The opening breaking guide wire 20 functions as a dividing line that divides the upper and lower outer flaps 17, 17 into left and right.
The opening breaking guide wire 20 of the present embodiment is continuous from the base end edge (edge on the bottom plate 10 side) of one outer flap 17 to the base end edge (edge on the top plate 15 side) of the other outer flap 17. Is formed.

In the upper outer flap 17, the opening breaking guide line 20 extends upward from the lower end portion of the upper finger insertion portion 19 which is the tip edge 17a of the upper outer flap 17. Further, in the lower outer flap 17, the opening breaking guide line 20 extends downward starting from the upper end portion of the lower finger insertion portion 19 which is the tip edge 17a of the lower outer flap 17. There is.
In the upper and lower outer flaps 17 and 17, the breaking guide wire 20 for opening passes through the central portion in the left-right direction of the two-finger insertion portions 19 and 19, and the two-finger insertion portions 19 and 19 are divided into two left and right. .. As a result, when the fingers are inserted into the two-finger insertion portions 19 and 19, the two-finger insertion portions 19 and 19 are opened to the left and right with the opening break guide line 20 as a boundary.
Further, the opening breaking guide wire 20 is connected to the upper edge and the lower edge of the handle hole 25 at the central portion in the left-right direction of the handle hole 25 in the upper outer flap 17.

A ridge line breaking guide line L30 formed of perforated cuts is formed on the upper edge portion (ridge line portion) of the front end plate 11. The ridge line break guide line L30 is connected to the upper end portion of the opening break guide line 20 and extends on both the left and right sides along the upper edge portion (ridge line portion). The left and right extending ends of the ridge line breaking guide line L30 are located in the left and right intermediate portions of the upper edge portion (ridge line portion). As a result, the left and right shoulder portions 11a and 11a of the upper edge portion (ridge line portion) of the front end plate 11 have a region in which the ridge line breakage guide line L30 does not exist. That is, the ridge line break guide line L30 is not formed on the entire upper edge portion where the break occurs at the time of opening.

Similarly, a ridge line breaking guide line L30 formed of perforated cuts is also formed on the lower edge portion (ridge line portion) of the front end plate 11. The ridge line break guide line L30 at the lower edge portion is connected to the lower end portion of the opening break guide line 20 and extends to the left and right intermediate portions of the lower edge portion (ridge line portion). As a result, there are regions in the left and right side portions 11b and 11b of the lower edge portion (ridge line portion) of the front end plate 11 in which the ridge line breakage guide line L30 does not exist. That is, the ridge line break guide line L30 is not formed on the entire lower edge portion where the break occurs at the time of opening.

The rear end plate 12 has the same configuration as the front end plate 11. Similar to the front end plate 11, the rear end plate 12 is formed with a breaking guide wire 20 for opening and finger insertion portions 19 and 19 extending in the vertical direction.

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

Then, when opening the front end plate 11, fingers are inserted into the finger insertion portions 19 and 19, and the front ends of the inner flaps 18 and 18 and the outer flaps 17 and 17 are grasped by the fingers and opened to the left and right. Then, a rift is formed along the opening breaking guide line 20, the upper edges of the outer flaps 17 and 17 are broken by the upper ridge line breaking guide line L30, separated from the leading edge of the top plate 15, and the outer flaps are separated. The lower edges of 17 and 17 are broken by the lower ridge line breaking guide line L30 and separated from the leading edge of the bottom plate 10.
As a result, as shown in FIG. 5, the inner flaps 18 and 18 and the outer flaps 17 and 17 are integrally opened in a double-door state.

According to the packaging box 1 of the present embodiment described above, the operation of inserting fingers into the finger insertion portions 19 and 19 to open the pair of outer flaps 17 and 17 and the pair of inner flaps 18 and 18 to the left and right is performed. As a result, the opening break guide wire 20 is cut open, and the outer flaps 17 and 17 and the inner flaps 18 and 18 are integrally opened to open the double doors. That is, the outer flaps 17 and 17 and the inner flaps 18 and 18 can be opened at the same time, and the surface sealed with an adhesive or the like can be easily opened.

Further, when the pair of outer flaps 17 and 17 is pulled open, a rift progresses from the opening breaking guide line 20 to the ridge line breaking guide line L30, so that the operation of opening the pair of outer flaps 17 and 17 is easy and the sealing is performed. The openability of the surface is improved.

Further, there are regions on the left and right shoulder portions 11a and 11a of the upper edge portion (ridge line portion) of the front end plate 11 in which the ridge line breaking guide line L30 does not exist, and further, the lower edge portion (ridge line portion) of the front end plate 11 is present. ), There are regions on both left and right sides 11b and 11b where the ridgeline breaking guide line L30 does not exist. As a result, the strength of the packaging box 1 is improved as compared with the case where the ridgeline breaking guide line L30 is formed up to both ends in the extending direction of the ridgeline portion. Therefore, a packaging box 1 having excellent strength at the time of stacking and strength at the time of dropping can be obtained.

Further, since the finger insertion portions 19 and 19 are formed on the outer flaps 17 and 17, the finger insertion portions for one outer flap 17 are compared with the case where the finger insertion portions are formed on the inner flaps 18 and 18. You can secure the distance. This makes it difficult for the fingers to touch the contained items even if the fingers are inserted at the time of opening. Therefore, while ensuring the openability, it is possible to preferably prevent the contained item from being damaged by being pushed by a finger or the like at the time of opening.

Further, since the finger insertion portions 19 and 19 are formed in the central portion in the left-right direction of the front end plate 11 (rear end plate 12), for example, the stored items are contained in the left-right direction of the front end plate 11 (rear end plate 12). When an even number of PET bottles are accommodated, they are located between the PET bottles. In such a case, since a space for inserting a finger can be suitably secured inside the finger insertion portions 19 and 19, the opening property is excellent.

(Second Embodiment)
The packaging box of the second embodiment will be described with reference to FIGS. 6 and 7. In the packaging box 1A of the second embodiment, the top plate 15 is also provided with an opening means. The packaging box 1A is preferably used as an inner box housed in an outer box (not shown).

The top plate 15 includes rising piece portions 52, 52 provided at both front and rear ends and an intermediate portion 54 sandwiched between the rising piece portions 52, 52 as opening means. The top plate 15 is formed with front and rear hook holes 51, 51 and opening start holes 53, 53.

The handle hole 51 is a through hole used when opening the packaging box 1A from above or when taking out the packaging box 1A from the outer box. The handle holes 51 are formed in the rising pieces 52 and 52 at the left and right ends of the top plate 15, respectively. The hook holes 51 and 51 are arranged in the middle portion in the left-right direction of the top plate 15, respectively. Each of the hook holes 51 and 51 has a long hole shape into which the index finger to the little finger of the finger can be inserted, and is closed by the folded pieces 55 and 55, respectively.

As shown in FIG. 12, the rising pieces 52 and 52 are portions for opening the front and rear ends of the top plate 15 by cutting and raising them. The rising piece portions 52 and 52 and the intermediate portion 54 are partitioned by cutting guide lines L52 and L52. Further, the intermediate portion 54 can be divided into left and right parts and opened by the front-rear cutting guide wire L54 formed near the right edge portion of the top plate 15. An intermediate handle hole 54b is formed in the central portion of the front-rear cutting guide wire L54 in the front-rear direction. The intermediate handle hole 54b is closed by the folded piece 54c.

When the packaging box 1A of the present embodiment is taken out from the outer box (not shown), both hands and fingers are inserted into the handle holes 51 and 51 on both the left and right sides and pulled up. Then, the rising pieces 52 and 52 are separated from the intermediate parts 54 by the cutting guide lines L52 and L52 and stand up. Therefore, by grasping and pulling up the rising pieces 52 and 52 as they are, the packaging box 1A can be taken out from the outer box. can.

Here, as shown in FIG. 7, each rising piece portion 52, 52 is via the left and right shoulder portions 11a, 11a, which are regions where the ridge line breaking guide lines L30, L30 of the front end plate 11 and the rear end plate 12 do not exist. It is continuously connected to the front end plate 11 and the rear end plate 12. As a result, the rising pieces 52 and 52 are not separated from the upper edges (ridges) of the front end plate 11 and the rear end plate 12 when the packaging box 1A is taken out or conveyed.

In the packaging box 1A of the present embodiment, in addition to taking out the contained items by cutting open the front end plate 11 and the rear end plate 12, an opening formed by raising the rising pieces 52 and 52 and an intermediate portion 54 are provided. The contents can be taken out by using the opening formed by cutting open.

Further, when the rising pieces 52, 52 are started up, or when the handle holes 51, 51 of the rising pieces 52, 52 are grasped and the packaging box 1A is taken out or transported, the rising pieces 52, 52 are mistakenly taken out. Is not torn or separated from each upper edge portion (ridge line portion) of the front end plate 11 and the rear end plate 12, so that the packaging box 1 is excellent in transportability and handleability.

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 appropriately modified without departing from the spirit of the present invention.
For example, the tip edges 18a and 18a of the inner flaps 18 and 18 may be butted against each other.

Further, as the shape of the finger insertion portion 19, various shapes can be adopted as long as the finger can be inserted and the opening operation can be performed. In this case, a pair of outer flaps 17, 17 may have different shapes from each other.

Further, in the above embodiment, the present invention is applied to the wraparound type packaging box 1, but the present invention is not limited to this, and the top plate and the bottom plate are sealed by a pair of inner flaps and a pair of outer flaps, so-called. The present invention may be applied to the A-type packaging box.

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

1 Packaging box 1A Packaging box 10 Bottom plate 13 Left plate 14 Right plate 15 Top plate 17 Outer flap 17a Tip edge 18 Inner flap 18a Tip edge 19 Finger insertion part 20 Opening break guide line 52 Ridge part L30 Ridge line break guide line

Claims (3)

A packaging box in which at least one wall is formed of a pair of inner flaps and a pair of outer flaps.
The pair of outer flaps have their tip edges butted against each other.
Finger insertion portions are formed on both tip edges, respectively.
The pair of outer flaps is formed with a breaking guide wire for opening so as to extend over the pair of outer flaps.
A packaging box characterized in that the opening breaking guide line intersects the finger insertion portions and extends along both tip edges of the pair of inner flaps. 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 at the ridge line portion of the pair of outer flaps.
The package according to claim 1, wherein the ridge line breaking guide line extends in the extending direction of the ridge line portion and is formed up to an intermediate portion of the ridge line portion in succession to the opening breaking guide line. box. A top plate, a bottom plate, and a left side plate and a right side plate connecting the top plate and the bottom plate are provided.
The pair of inner flaps are connected to the left side plate and the right side plate.
The pair of outer flaps are connected to the top plate and the bottom plate.
The ridgeline breaking guide line is formed on the ridgeline portion of the top plate and the outer flap.
The packaging box according to claim 2, wherein the top plate is formed with a rising portion that rises upward via the ridgeline portion and functions as a gripping portion.

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