JP2020070025A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily improve displayability. A packaging box 1 has a first upper edge 4b, a pair of second upper edges 5l and 5r adjacent to both ends of the first upper edge, and a third upper edge 4f facing the first upper edge. A bottomed cylindrical main body box 2 having an opening surrounded by the upper part, a first flap 11B extending from the first upper edge 4b, and a pair of second upper edges 5l and 5r extending from at least one of them. The second flaps 12L, 12R which are installed and connected only to the first flap 11B, and the first bending lines 41L, 41R and the second flap formed between the first flap 11B and the second flaps 12L, 12R. It is provided with a lid portion 10 having a bending mechanism 40L, 40R having a second bending line 42L, 42R formed on the 12L, 12R. In the closed state of the opening, the first flaps 11B and the second flaps 12L and 12R are arranged so as to be overlapped with each other by being bent by the second bending lines 42L and 42R and the first bending lines 41L and 41R. [Selection diagram] Fig. 2

Description

  The present invention relates to a packaging box for packaging articles.

  BACKGROUND ART Conventionally, there is known a packaging box (so-called “A-type box”) in which standing wall portions are provided on four side surfaces of a rectangular parallelepiped, a bottom wall portion is provided on a bottom surface, and an opening on an upper surface is closed by a plurality of flaps. When closing the opening of the packaging box, a pair of outer flaps extending from the upper edges of the pair of upright walls and a pair of inner flaps extending from the upper edges of the other pair of upright walls are bent. It will be piled up.

  Further, in the conventional packaging boxes, there is a packaging box in which the inner flap and the outer flap are not separated by a slit and are connected to each other (for example, see Patent Document 1).

Japanese Patent No. 6127858

By the way, the packaging box is not only used as a transport container, a packaging container or a storage container in a state where the article is housed in the box and the opening is closed, but also in a state where the opening of the packaging box is opened, for example, It was sometimes used as a display box for displaying merchandise at the sales floor of a store.
For example, when the packaging box of Patent Document 1 is used as a display box, when the opening is opened, all four flaps provided in the opening on the upper surface stand up in a state of being connected to each other, and thus the packaging box is housed in the box. The displayability such as the ease of taking out the article from the opening and the visibility at the time of visually recognizing the article accommodated in the box from the opening are insufficient, and it is difficult to use it as a display box.

  The packaging box of the present disclosure was created in view of the above problems, and one of its purposes is to easily improve the displayability. Note that the present invention is not limited to this purpose, and it is also possible to obtain the action and effect derived from each configuration shown in “Mode for carrying out the invention” described later, which is not obtained by the conventional technique. It can be positioned for other purposes.

  The packaging box of the present disclosure has an opening surrounded on four sides by a first upper edge and a pair of second upper edges adjacent to both ends of the first upper edge, and a third upper edge facing the first upper edge. A bottomed cylindrical main body box part, a first flap extending from the first upper edge, a second flap extending from at least one of the pair of second upper edges, and the first A first folding line formed between the flap and the second flap and a folding mechanism having a second folding line formed on one of the first flap and the second flap, and the opening In the closed closed state, the lid is provided with the first flap and the second flap being overlapped with each other by being folded along the second folding line and along the first folding line.

  Due to the structure in which the second flap is connected only to the first flap, only the first flap and the second flap can stand up to the opening of the main body box, and the flap does not stand up on the third upper edge. Therefore, displayability such as ease of taking out articles and visibility can be improved.

It is a perspective view showing the closed state of the packaging box concerning one embodiment. It is a perspective view showing the opened state of the packaging box concerning one embodiment. It is a development view of the packaging box concerning one embodiment. It is a perspective view which shows the closed state of the packaging box regarding another embodiment. It is a perspective view which shows the open state of the packaging box regarding another embodiment. It is a development view of the packaging box concerning another embodiment.

Hereinafter, a packaging box as an embodiment will be described with reference to the drawings.
The packaging box of this embodiment is a three-dimensional packaging body assembled from a flat sheet material (also referred to as a "blank sheet"). As the sheet material assembled in the packaging box, a packaging material that has been subjected to processing such as cutting into a predetermined shape or giving a ruled line is used. Examples of the packaging material used for the sheet material include cardboard sheets and cardboard.

In this embodiment, it is assumed that the packaging box and the sheet material are placed on a horizontal plane, and the directions used in the description are defined as follows.
For packaging boxes, the horizontal direction is the front-back direction (the front is indicated by "F" and the rear is indicated by "B") and the left-right direction (the left is indicated by "L" and the right is indicated in the figure). (Denoted by "R"). Regarding the left-right direction, the left-right direction is determined based on the state of facing from the front to the rear. In the vertical direction, the direction of gravity is downward (indicated by "D" in the figure), and the opposite direction is downward (indicated by "U" in the figure). In addition, an opening for loading and unloading articles is provided on the top of the packaging box.

The sheet material will be described using the X and Y directions that are orthogonal to each other in the horizontal direction. Each of the X direction and the Y direction extends in two directions opposite to each other. Therefore, one of the X directions is the X ₁ direction and the other is the X ₂ direction. Similarly, one of the Y directions is the Y ₁ direction and the other is the Y ₂ direction.

[I. Embodiment]
[1. Constitution]
[1-1. Packaging box]
As shown in FIGS. 1 and 2, the packaging box 1 includes a main body box portion 2 having an opening O provided at an upper portion thereof, and a lid portion 10 closing the opening O. FIG. 1 shows a closed state in which the opening O of the packaging box 1 is closed by a lid portion 10, and FIG. 2 shows an open state in which the lid portion 10 is opened and the opening O of the packaging box 1 is opened.

[Main body box part]
The body box 2 has a bottomed tubular shape. In the main body box part 2, a pair of standing wall parts 4F and 4B arranged in front and back and a pair of standing wall parts 5L and 5R arranged in left and right are folded up from a bottom wall part 3 which is rectangular in a plan view.
In the main body box portion 2 shown in FIGS. 1 and 2, the lengths of the standing wall portions 4F and 4B in the left-right direction are set to be longer than the lengths of the standing wall portions 5L and 5R in the front-rear direction. That is, the bottom wall portion 3 is provided along the bottom surface of the rectangular parallelepiped, and the standing wall portions 4F, 4B, 5L, 5R are provided along each side surface of the rectangular parallelepiped.
The opening O of the main body box portion 2 is surrounded on all sides by the upper edges 4f, 4b, 5l, 5r of the standing wall portions 4F, 4B, 5L, 5R.

The standing wall portions 4F and 4B are subdivided into a front standing wall portion 4F and a rear standing wall portion 4B. The standing wall portions 5L and 5R are subdivided into a left standing wall portion 5L and a right standing wall portion 5R. Hereinafter, the front standing wall portion 4F is the "front wall portion 4F", the rear standing wall portion 4B is the "rear wall portion 4B", the left standing wall portion 5L is the "left wall portion 5L", and the right standing wall portion 5R is " Right wall portion 5R ".
Here, the main body box portion 2 which is symmetrical in the front-rear direction and the left-right symmetry is exemplified.

  The bottom wall portion 3 shown in FIGS. 1 and 2 may have any configuration as long as it can close the bottom portion of the main body box portion 2. For example, the bottom wall portion 3 includes a pair of lower edge outer flaps (not shown) extending from the lower edge of the rear wall portion 4B and the lower edge of the front wall portion 4F, and the lower edge of the left wall portion 5L. It is formed by the lower edge of the right wall portion 5R and a pair of lower edge inner flaps (not shown) extending from the lower edge.

(Lid part)
The first outer flap 11B extends from the upper edge 4b of the rear wall 4B, and the second outer flap 11F extends from the upper edge 4f of the front wall 4F facing the upper edge 4b of the rear wall 4B. It has been extended.
Further, from the upper edge 5l of the left wall portion 5L and the upper edge 5r of the right wall portion 5R which are adjacent to the left and right ends of the upper edge 4b of the rear wall portion 4B, the first inner flap 12L and the second inner flap 12R are respectively formed. It has been extended.
The lid 10 is composed of the first outer flap 11B, the second outer flap 11F, the first inner flap 12L, and the second inner flap 12R.

  In the packaging box 1 of the present embodiment, the first outer flap 11B corresponds to the first flap extending from the first upper edge (upper edge 4b) of the main body box portion 2, and the first inner flap 12L and the second inner flap The flap 12R corresponds to a pair of second flaps extending from the second upper edge (upper edges 5l, 5r) adjacent to both ends of the first upper edge, and the second outer flap 11F is the first upper edge. Corresponds to the third flap extending from the third upper edge (upper edge 4f) facing to.

As shown in FIG. 2, the groove between the first outer flap 11B and the first inner flap 12L is not completely cut and is continuously provided. Further, the groove between the first outer flap 11B and the second inner flap 12R is not completely cut and is continuously provided. On the other hand, the second outer flap 11F (shown by the chain double-dashed line in FIG. 2) and the first inner flap 12L and the second inner flap 12R are not connected and separated.
Therefore, in the open state shown in FIG. 2, among the four sides of the opening O of the main body box portion 2, the first outer flap 11B, the first inner flap 12L, and the first inner flap 12L extending from the three sides of the upper edges 4b, 5l, and 5r. Only the inner flap 12R can be integrally raised.

  As described above, in the packaging box 1 of the present embodiment, only one of the pair of outer flaps 11B and 11F (first outer flap 11B) is connected to the pair of inner flaps 12L and 12R, and the pair of outer flaps 11B. , 11F, the other (second outer flap 11F) is not connected to the pair of inner flaps 12L, 12R.

[Bending mechanism]
Since the first inner flap 12L and the second inner flap 12R are connected to the first outer flap 11B, the first outer flap 11B is replaced with the first inner flap 12L and the second inner flap when the lid 10 is closed. Bending mechanisms 40L and 40R are provided as a mechanism for superposing on the 12R.
As shown in FIG. 2, the folding mechanisms 40L and 40R include first folding lines 41L and 41R provided between the first outer flap 11B and the first inner flap 12L and the second inner flap 12R, respectively. It has the second folding lines 42L and 42R formed on the inner flap 12L and the second inner flap 12R, respectively.

  The first folding lines 41L and 41R are provided to facilitate bending between the first outer flap 11B and the first inner flap 12L and the second inner flap 12R. One first bending line 41L extends linearly along the boundary between the first outer flap 11B and the first inner flap 12L. The other first bending line 41R extends linearly along the boundary between the first outer flap 11B and the second inner flap 12R.

Between the first outer flap 11B and the first inner flap 12L shown in FIGS. 1 and 2 (at the first bending line 41L) and between the first outer flap 11B and the second inner flap 12R (first bending). At the location of the line 41R), a continuous portion 410 and a cut portion 411 are provided, respectively. The cut portion 411 is a portion where the first outer flap 11B and the first inner flap 12L and the second inner flap 12R are partially separated, and the first outer flap 11B and the first inner flap 12L in the open state, It is formed by a notch extending downward from the tip edge between the second inner flap 12R. The connecting portion 410 is a portion that partially connects between the first outer flap 11B and the first inner flap 12R, or between the first outer flap 11B and the second inner flap 12L, and the cut portion. It extends from the end of 411 (the lower end in the open state) to the intersection of the upper edge 4b and the upper edges 5l, 5r.
In other words, the first fold line 41L and the first fold line 41R each have the continuous portion 410 and the notch 411.

The second folding lines 42L and 42R are provided to fold the first inner flap 12L and the second inner flap 12R through the second folding lines 42L and 42R, respectively.
One second folding line 42L is formed on the first inner flap 12L, and is forward from the intersection of the upper edge 4b and the upper edge 5l (the rear base end portion of the first inner flap 12L) and the front edge of the first inner flap 12L. To the upper edge 5l with an inclination (see FIG. 2). The other second bending line 42R is formed on the second inner flap 12R, and is forward from the intersection of the upper edge 4b and the upper edge 5r (the rear base end of the second inner flap 12R) and the leading edge of the second inner flap 12R. To the upper edge 5r with an inclination (see FIG. 2).

  In the first inner flap 12L and the second inner flap 12R, portions 13L and 13R defined by respective rear edges (locations of the first bending lines 41L and 41R) and second bending lines 42L and 42R (see FIG. 2). ) Is a superimposed portion that is overlapped with the central portions 14L and 14R (see FIG. 2) when the first inner flap 12L and the second inner flap 12R are bent along the second folding lines 42L and 42R (see FIG. 2). ).

[Notch part]
In addition, notch portions 43L and 43R are provided at the front end edges of the first inner flap 12L and the second inner flap 12R at approximately the center in the front-rear direction. The notch portions 43L and 43R each have a first side 44 parallel to the upper edges 5l and 5r and a second side 45 perpendicular to the first side 44, and are L-shaped in a side view from the left and right in the open state. Formed in. The tips of the second bending lines 42L and 42R are located at the intersections of the first side 44 and the second side 45. That is, the second folding lines 42L and 42R extend from the rear proximal end of the first inner flap 12L and the rear proximal end of the second inner flap 12R to the cutouts 43L and 43R, respectively.

[Slope]
Further, the front edge 46L of the first inner flap 12L is formed as an inclined side that inclines rearward upward from the intersection of the upper edge 4f and the upper edge 5l with the opening shown in FIG. 2 being opened. There is. Similarly, the front edge 46R of the second inner flap 12R is also formed as an inclined side which is inclined upward rearward from the intersection of the upper edge 4f and the upper edge 5r.

[Zipper structure]
Further, a zipper structure 50 having intermittently formed notches 51 is provided between the second outer flap 11F and the upper edge 4f. The zipper structure 50 is a cutoff line for separating the second outer flap 11F from the front wall portion 4F. In the zipper structure 50 shown in FIG. 1, a plurality of cuts 51 are formed at a constant pitch from the right end to the left end of the upper edge 4f.

[Printing department]
A printing unit 60 is provided on the outer surface of the front wall 4F. The printing unit 60 is printed with the name, pattern, etc. of the contents of the packaging box 1.

[1-2. Opening and closing the lid]
In the packaging box 1 having the above configuration, when closing the opening O with the lid portion 10, the worker first inserts the first inner flap 12L and the second inner flap 12R at the second folding lines 42L and 42R, respectively. Then, the overlapped portions 13L and 13R are superposed on the central portions 14L and 14R. At the same time, the worker folds the first outer flap 11B and the first inner flap 12L and the second inner flap 12R along the first folding lines 41L and 41R. Thereby, the first outer flap 11B is folded toward the inner side of the main body box portion 2 with respect to the rear wall portion 4B while being overlapped with the overlapping portions 13L and 13R of the first inner flap 12L and the second inner flap 12R. ..
In the present embodiment, the folding directions of the first folding lines 41L and 41R are set to mountain folds, and the folding directions of the second folding lines 42L and 42R are set to valley folds. That is, the bending directions of the first bending lines 41L and 41R and the bending directions of the second bending lines 42L and 42R are set to be opposite to each other.

  The other second outer flap 11F is bent toward the inside of the main body box portion 2 with respect to the front wall portion 4F, and is superposed on the first inner flap 12L and the second inner flap 12R. In this state, the front end edges 110 of the first outer flap 11B and the second outer flap 11F are arranged in abutment with each other.

  When closing the opening of the packaging box 1, the operator straddles the first outer flap 11B and the second outer flap 11F and extends along the leading edge 110 with the adhesive tape 90 (shown by a chain double-dashed line in FIG. 1). Paste. By sticking the adhesive tape 90 from the left wall portion 5L to the right wall portion 5R, the packaging box 1 is reliably sealed.

When opening the opening closed as described above, the operator first peels off the adhesive tape 90 and then raises the first outer flap 11B with the upper edge 4b of the rear wall portion 4B as an axis.
At this time, since the first inner flap 12L and the second inner flap 12R are connected to the first outer flap 11B, the first inner flap 12L and the second inner flap 12R are integrated with the first outer flap 11B. Accordingly, the upper edge 5l of the left wall portion 5L and the upper edge 5r of the right wall portion 5R are raised as axes. Along with this, the overlapping portions 13L and 13R and the central portions 14L and 14R that have been folded along the second folding lines 42L and 42R are developed on the same plane.

  In this way, the first outer flap 11B stands upward from the upper edge 4b along the same plane as the rear wall portion 4B. Further, the first inner flap 12L and the second inner flap 12R stand upright from the upper edge 5l and the upper edge 5r, respectively, along the same plane as the left wall portion 5L and the right wall portion 5R. As a result, the first outer flap 11B, the first inner flap 12L, and the second inner flap 12R respectively have wall portions extending upward from the upper edge 4b, the upper edge 5l, and the upper edge 5r of the opening O of the packaging box 1. Function as.

  Further, the worker separates the second outer flap 11F from the upper edge 4f of the main body box portion 2. Since the second outer flap 11F is extended from the upper edge 4f of the main body box part 2 through the zipper structure 50, the operator can easily manually remove the second outer flap 11F from the main body box part 2. Can be separated. FIG. 2 shows a state in which the second outer flap 11F is separated, and the second outer flap 11F is shown by a chain double-dashed line.

[Sheet material]
Next, the sheet material 1S assembled in the packaging box 1 will be described with reference to FIG.
The sheet material 1S is a piece of packaging material cut into a predetermined shape.
In the following description, a ruled line extending in the Y direction (for example, the direction along the extending direction of the corrugation <flute> when the sheet material 1S is made of a corrugated cardboard sheet) is referred to as “crease”, and the X direction (for example, the sheet material 1S is corrugated cardboard A ruled line extending in a direction orthogonal to the extending direction of the step when the sheet is formed is called a "score".

In the Y direction central region of the sheet material 1S, a front wall sheet piece 4F corresponding to the front wall portion 4F, a right wall sheet piece 5R corresponding to the right wall portion 5R, a rear wall sheet piece 4B corresponding to the rear wall portion 4B, and A left wall sheet piece 5L corresponding to the left wall portion 5L is provided. The boundaries of the sheet pieces 4F, 5R, 4B, 5L are partitioned by the first clease C ₁ , the second clease C ₂ , and the third clease C ₃ , respectively. A connecting sheet piece 9 is provided on the X ₁ direction side of the front wall sheet piece 4F via a fourth crease C ₄ .

In the Y ₁ direction side area of the sheet material 1S, flap sheet pieces 31F, 32R, 31B, 32L are formed as sheet pieces forming the bottom wall portion 3 from the sheet pieces 4F, 5R, 4B, 5L in the Y ₁ direction. It is provided so as to project. The boundaries between the flap sheet pieces 31F, 32R, 31B, 32L and the sheet pieces 4F, 5R, 4B, 5L are the fourth score S ₄ , the fifth score S ₅ , the sixth score S ₆ , and the seventh score S ₇ . It is partitioned.

The second outer flap sheet piece 11F corresponding to the second outer flap 11F, the second inner flap sheet piece 12R corresponding to the second inner flap 12R, and the first outer flap 11B are provided in the Y ₂ direction side region of the sheet material 1S. A first inner flap sheet piece 12L corresponding to the corresponding first outer flap sheet piece 11B and first inner flap sheet 12L is provided so as to project from the sheet pieces 4F, 5R, 4B, 5L in the Y ₂ direction.
And first score S ₁ is provided at a boundary between the second inner flap sheet piece 12R and the right wall sheet piece 5R, second score at the boundary between the first outer flap sheet piece 11B and the rear wall sheet strip 4B S ₂ Is provided, and the third score S ₃ is provided at the boundary between the first inner flap sheet piece 12L and the left wall sheet piece 5L.

Further, the boundary between the second outer flap sheet piece 11F and the front wall sheet piece 4F is partitioned in the Y direction by the breakage portion 50 corresponding to the zipper structure 50 described above and the eighth score S ₈ . The breaking portion 50 is provided with a plurality of notches 51 formed intermittently along the boundary between the second outer flap sheet piece 11F and the front wall sheet piece 4F.

[First fold line]
And the second inner flap sheet piece 12R and the first outer flap sheet pieces 11B are formed continuously in the X direction, the boundary between the second inner flap sheet piece 12R and the first outer flap sheet piece 11B fifth crease C ₅ It is sectioned in the X direction by the first bending line 41R having. Further, the first outer flap sheet piece 11B and the first inner flap sheet piece 12L are continuously provided in the X direction, and the boundary between the first outer flap sheet piece 11B and the first inner flap sheet piece 12L is the sixth crease. It is partitioned in the X direction by the first bending line 41L having C ₆ .

In the first bending lines 41R and 41L shown in FIG. 3, a part is formed as a continuous portion 41 from the end portion in the Y ₁ direction toward the Y ₂ direction, and the remaining portion (end portion in the Y ₂ direction) is a groove. The cut portion 411 is formed by cutting.

[Second fold line]
Further, the second inner flap sheet piece 12R has a second fold line having a first ruled line L ₁ at a position that bisects an angle (90 degrees) formed by the first fold line 41R and the first score S _1. 42R is arranged. The first inner flap sheet piece 12L, the angle (90 degrees) the bisecting position of the first fold line 41L and the third score S _3, the second fold line 42L having a second ruled line L ₂ It is arranged.

[Notch part]
Further, L-shaped cutout portions 43L and 43R are formed at the central portion in the X direction at the edges in the Y ₂ direction of the first inner flap sheet piece 12L and the second inner flap sheet piece 12R. The cutout portions 43L and 43R have a first side 44 that is parallel to the first score S ₁ and the third score S ₃ and a second side 45 that is perpendicular to the first side 44. The tips of the second folding lines 42L and 42R are located at the intersections of the sides 45.

[Slope]
Moreover, the edge 46L in the X ₂ direction of the first inner flap sheet piece 12L is formed as an inclined side extending from the base end in the Y ₁ direction toward the Y ₂ direction and inclined in the X ₁ direction. Similarly, X ₁ direction edge 46R of the second inner flap sheet pieces 12R, extends from Y ₁ direction of the base end in the Y ₂ direction, are formed as inclined side inclined to the X ₂ direction.

[Effect]
As described above, the packaging box 1 according to the present embodiment can be easily installed by simply raising the first outer flap 11B, the first inner flap 12L, and the second inner flap 12R. Available as a display box. Since only the first outer flap 11B is connected to the first inner flap 12L and the second inner flap 12R, the first outer flap 11B and the first inner flap 12L extending from the upper edge 4b, the upper edge 5r, and the upper edge 5l. Only the three flaps of the second inner flap 12R and the second inner flap 12R are raised, and the second outer flap 11F is not raised at the upper edge 4f. Therefore, the displayability when used as a display box can be improved. Of course, when the opening is fully closed, the packaging box 1 can be used as a transportation container, a packaging container, or a storage container. In the present specification, "displayability" includes ease of taking out articles from the opening, visibility of articles from the opening, and efficiency of display work.

  More specifically, since the first outer flap 11B, the first inner flap 12L, and the second inner flap 12R are started up when used as a display box, the height of the packaging box 1 is increased by the amount of the started up flaps. Can be increased. In addition, since the second outer flap 11F is not started up in a continuous manner from the upper edge 4f of the four sides of the opening, the ease of taking out articles and the visibility can be improved. Further, since the first outer flap 11B, the first inner flap 12L, and the second inner flap 12R maintain the standing state by supporting each other, tape fastening between the flaps is unnecessary. Therefore, the efficiency of the display work can be improved.

  Further, since the zipper structure 50 is provided between the second outer flap 11F and the upper edge 4f, the second outer flap 11F which is unnecessary when used as a display box can be obtained without using scissors, a cutting tool such as a cutter, or the like. It can be easily separated from the main body box portion 2 by hand.

  Further, by providing the printing unit 60 on the front wall portion 4F which is the front surface of the display box, the printing unit 60 is arranged at a location that is easy for the user of the display box to see. Therefore, the displayability can be further improved.

  In addition, when the end edges 46L and 46R of the first inner flap 12L and the second inner flap 12R are inclined upward toward the rear with the opening opened, when the packaging box 1 is used as a display box, The height of the left and right side walls of the display box can be gradually lowered from the rear of the display box toward the front. Therefore, the ease of taking out the article and the visibility of the article can be further improved.

  Further, the first outer flap 11B and the first inner flap 12L and the second inner flap 12R are partially connected only at the connecting portion 410 and partially cut from the leading edge by the cut portion 411. By being separated, the length of the connecting portion between the first outer flap 11B and the first inner flap 12L, the second inner flap 12R is shortened, and bending work at the first bending lines 41L, 41R is performed. You can do it even easier.

  Further, the first inner flap 12L and the second inner flap 12R are provided with cutout portions 43L, 43R at their front edges in substantially the center in the front-rear direction, and the second folding lines 42L, 42R are cutout portions 43L. , 43R, the lengths of the second bending lines 42L, 42R are shortened, and the folding process on the second bending lines 42L, 42R becomes easier to perform.

  For example, when a conventionally known packaging box (a so-called “A type box”) whose opening is closed by a pair of inner flaps and a pair of outer flaps is used as a display box equivalent to this embodiment, first, a pair of One of the outer flaps and one pair of inner flaps are raised, then these flaps are fixed to each other with adhesive tape, and then the other of the pair of outer flaps is cut off with a cutter, and further, It is necessary to cut off the front corners diagonally. On the other hand, the packaging box 1 of the present embodiment can be easily used as the above-mentioned display box simply by raising the first outer flap 11B, the first inner flap 12L, and the second inner flap 12R. Therefore, the tape fastening work using the adhesive tape and the cutting work using the cutter are unnecessary, and the efficiency of the display work can be improved.

[Modification]
Although one embodiment of the present invention has been described above, the present invention can be implemented by appropriately modifying the embodiment without departing from the spirit of the present invention.

4 to 6 are views for explaining a packaging box 100 of another embodiment and a sheet material 100S for assembling the packaging box 100. Constituent elements that have already been described with reference to FIGS. 1 to 3 are given common reference numerals, and description thereof will be omitted as appropriate.
In the packaging box 100, the length of the first outer flap 110B in the front-rear direction is set to be the same as the length of the main body box portion in the front-rear direction. It differs from the packaging box 1 shown in FIGS. 1 to 3 in that it can be covered. Therefore, the packaging box 100 is not provided with a flap corresponding to the second outer flap 11F of the packaging box 1. In this case, the height of the box when used as a display box can be increased by the length of the first outer flap 110B in the front-rear direction.

In this case, as shown in FIG. 5, at the rear edge of each of the first inner flap 12L and the second inner flap 12R, the support surface 120L extending along the left-right direction edge of the first outer flap 110B. , A support surface 120R is provided. That is, as shown in FIG. 6, in the sheet material 100S, a support surface 120L extending in the Y ₂ direction and the X ₂ direction is formed at the edge of the first inner flap 12L in the X ₁ direction. A support surface 120R extending in the Y ₂ direction and the X ₁ direction is formed at the edge of the inner flap 12R in the X ₂ direction.
The support surfaces 120L, 120R support the first outer flap 110B below in the closed state (see FIG. 4), and in the open state, the support surfaces 120L, 120R along the standing direction of the first outer flap 110B. By extending, the upright state of the first outer flap 110B can be supported and reinforced by the support surfaces 120L and 120R (see FIG. 5).

[Other]
In the above embodiment, the case where the front edges 46L and 46R of the first inner flap 12L and the second inner flap 12R are formed by the slanted side has been described as an example, but the first inner flap 12L, The end edges 46L and 46R of the second inner flap 12R may be linear shapes that extend in the vertical direction when the first inner flap 12L and the second inner flap 12R are raised.

  Further, the cutout portions 43L and 43R at the tip edges of the first inner flap 12L and the second inner flap 12R may not be provided. That is, the surface shapes of the first inner flap 12L and the second inner flap 12R may be rectangular in plan view similar to the inner flap of the so-called "A type box".

  In the above embodiment, the first outer flap 11B corresponds to the "first flap", the first inner flap 12L and the second inner flap 12R correspond to the "second flap", and the second outer flap. The case where 11F corresponds to the “third flap”, that is, the case where the first flap and the third flap overlap the outside of the pair of second flaps in the state where the lid 10 is closed has been described as an example. Not limited to this, the lid 10 may be configured such that the pair of second flaps overlaps the outer sides of the first flap and the third flap.

  Further, in the above embodiment, the case where the second folding lines 42L and 42R are formed on the first inner flap 12L and the second inner flap 12R has been described as an example, but the second folding lines 42L and 42R are , May be formed on the first outer flap 11B. In that case, in the first outer flap 11B, a portion defined by the first folding lines 41L and 41R and the second folding lines 42L and 42R is a overlapping portion that overlaps with a part of the first outer flap 11B.

  The packaging boxes 1 and 100 are not limited to a rectangular parallelepiped shape, but may be a cubic shape, a prismatic shape, or the like. That is, the proportions of the packaging boxes 1 and 100 are arbitrary.

1,100 Packaging box 1S Sheet material 2 Main body box portion 3 Bottom wall portion 4B Rear wall portion, side wall sheet piece 4F Front wall portion, side wall sheet piece 4f, 4b, 5l, 5r Upper edge 5L Left wall portion, end wall sheet piece 5R Right wall portion, end wall sheet piece 9 Combined sheet piece 10 Lid portion, lid portion sheet piece 11B First outer flap, first outer flap sheet piece 11F Second outer flap, second outer flap sheet piece 12L First inner flap , First inner flap sheet piece 12R second inner flap, second inner flap sheet piece 13L, 13R overlapping portion 14L, 14R central portion 40L, 40R folding mechanism 41L, 41R first folding line 42L, 42R second folding line 43L, 43R Notch 44 First side 45 Second side 46L, 46R Edge 50 Zipper structure, Breaking part 51 Notch 60 Printing part 90 Adhesive tape 110 Tip edge 110B Ichisoto flaps 120L, 120R support surface 410 communicating portion 411 cut portion O opening

Claims (6)

A bottomed tubular shape having an opening surrounded on four sides by a first upper edge and a pair of second upper edges adjacent to both ends of the first upper edge and a third upper edge facing the first upper edge. With the main body box part,
A first flap extending from the first upper edge, a second flap extending from at least one of the pair of second upper edges, and formed between the first flap and the second flap. A folding mechanism having a first folding line and a second folding line formed on one of the first flap and the second flap, and in the closed state in which the opening is closed, the second folding line is used. By being folded at the same time as being bent at the first folding line, the first flap and the second flap are provided with a lid portion arranged to overlap.
A packaging box characterized by that. A third flap extending from the third upper edge,
A zipper structure having a notch formed intermittently between the third upper edge and the third flap,
The packaging box according to claim 1, wherein: The main body box portion is provided with a printing portion for performing printing on the outer surface of the standing wall portion having the third upper edge,
The packaging box according to claim 1 or 2, characterized in that. In the second flap, with the opening opened, an edge facing the edge continuously provided to the first flap is inclined upward from the third upper edge toward the first upper edge. The packaging box according to claim 1, wherein: Between the first flap and the second flap, a connecting portion that partially connects the first flap and the second flap, and the first flap and the second flap The packaging box according to any one of claims 1 to 4, further comprising a cutout portion that partially separates the space. A notch is formed at the tip edge of the second flap,
The packaging box according to any one of claims 1 to 5, wherein the second folding line extends from an intersection of the second upper edge and the first folding line to the cutout portion.

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