JP6804873B2 - Packaging box - Google Patents

Description

The present invention relates to a packaging box.

Patent Document 1 discloses a packaging box including a bottom plate, a pair of end plates, a front plate, a rear plate, a canopy plate, and a front lid plate. A part of the packaging box can be opened by pulling out the insertion piece connected to the front lid plate from the insertion hole of the front plate and bending the canopy plate backward with respect to the rear plate.

Japanese Unexamined Patent Publication No. 2001-18950

However, the packaging box of Patent Document 1 can only be opened with the front lid plate (front surface) and the canopy plate. Therefore, when the article is displayed and sold while being housed in the packaging box, the article cannot be seen even when the packaging box is viewed from the side other than the front, so that the sales promotion effect is poor.

An object of the present invention is to provide a packaging box capable of forming an opened portion in which an article can be viewed from a side other than the front.

Packaging box of the present invention includes a first side, an end plate having a pair of second sides extending in a direction intersecting the first side, a first side plate which is continuous with the front Symbol first side are arranged respectively along the front Stories second side, a pair of continuous and the third side of Ru extending in a direction intersecting the first side and the second side of the first side plate first and second side plate, before SL are respectively continuous with the second side, and a pair of inner flaps are arranged on an inner surface of the second side plate. Each of the pair of second side plates is provided with a first breaking line from the edge on the second side to the third side, and the end plate and the pair of inner flaps are formed from one inner flap. A second breaking line is provided over the other inner flap, and the inner flap is provided with an auxiliary folding curve from the intersection of the first side and the second side toward the end of the second breaking line. Has been done .

According to this packaging box, the opened portion can be easily formed by breaking the second side plate along the first breaking line and then breaking the end plate and the inner flap along the second breaking line. Since this opened portion extends from the end plate (front) to the second side plates on both sides, the article can be seen even when the packaging box is viewed from a side other than the front. Therefore, a high sales promotion effect can be obtained when the article is displayed and sold while being housed in the packaging box.
Further, the inner flap is provided with an auxiliary folding curve from the intersection of the first side and the second side toward the end of the second breaking line. Therefore, when the second side plate is broken along the first breaking line, the operating force is transmitted to the inner flap, so that the inner flap bends along the auxiliary folding curve. Then, since a shearing force acts on the second breaking line of the inner flap, the inner flap can be easily broken as compared with the case where the auxiliary folding curve is not provided. Therefore, the opening workability of the packaging box can be reliably improved.

A third side plate is continuously provided on the fourth side of the end plate facing the first side, and the second side plate is an outer flap connected to the first side plate and the third side plate, respectively. It is preferably composed of. The packaging box of this aspect is a general-purpose packaging box standardized by JIS Z 1507-0201, excluding the first breaking line and the second breaking line, and has a simple shape, so that the manufacturing cost can be reduced.

It is preferable that the first side plate is provided with a dividing line extending from one end of the first breaking line to the other end of the first breaking line. According to this aspect, by breaking the first side plate along the dividing line, a part of the second side plate, a part of the end plate, and at least a part of the first side plate are separated from the packaging box, and a large opening is performed. Part can be formed. Therefore, when the article is displayed and sold while being housed in the packaging box, a higher sales promotion effect can be obtained.

The dividing line includes a third breaking line formed so as to cross the first side plate. According to this aspect, when the first side plate is broken along the third breaking line, a part of the first side plate is separated, and the other part of the first side plate is left unseparated. Another packaging box can be placed on the remaining first side plate. Therefore, this packaging box is most suitable for stacking a large number of articles for mass display and sale.

Further, the dividing line includes a pair of fourth breaking lines extending in a direction away from the end of the first breaking line with respect to the first side. In this case, it is preferable that the dividing line includes a fifth breaking line extending from one end of the fourth breaking line to the other end of the fourth breaking line. According to this aspect, all or most of the first side plate can be separated. Therefore, when the article is displayed and sold while being housed in the packaging box, a high sales promotion effect can be surely obtained.

The second side plate may be provided with a hole in an intermediate portion on the first breaking line. According to this aspect, the second side plate can be easily broken along the first breaking line by inserting a hand into the hole and pulling the second side plate, so that the opening workability of the packaging box can be improved.

In this case, the hole portion is a folding curve located outside the tip of the inner flap, and a sixth breaking line extending from one end to the other end of the folding curve in a direction away from the second side. It is preferable that the two side plates are partitioned. Further, the angle formed by the portion of the first breaking line extending along the third side and the folding curve is less than 90 degrees. According to this aspect, the second side plate and the inner flap can be gripped together by inserting a hand into the hole. When the opening operation of the second side plate is performed in this state, the second side plate can be broken along the first breaking line and at the same time, the inner flap can be broken along the second breaking line, so that the opening workability can be further improved.

In the packaging box of the present invention, the second side plate is broken along the first breaking line, and the end plate and the inner flap are broken along the second breaking line so that the article can be seen from the side other than the end plate. The part can be easily formed. Therefore, a high sales promotion effect can be obtained when the article is displayed and sold while being housed in the packaging box.

The perspective view which shows the sealed state of the packaging box of this embodiment. The perspective view which shows the 1st opening state of the packaging box of FIG. The perspective view which shows the 2nd opened state of the packaging box of FIG. The plan view which shows the blank of the packaging box of FIG. An enlarged plan view of a main part of the packaging box of FIG. 3A. The perspective view which shows the assembly process of the packaging box of FIG. The perspective view which shows one step at the time of opening the packaging box of FIG. FIG. 5A is a cross-sectional view. A vertical sectional view of FIG. 5A. FIG. 3 is a perspective view showing another step of opening the packaging box of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 2B show the packaging box 10 according to the present embodiment. The packaging box 10 has a rectangular parallelepiped shape and includes a first end plate 12A, a second end plate 12B, a first side plate 13, a pair of second side plates 14A and 14B, and a third side plate 15. Inner flaps 27A to 28B, which are superposed on the inner surfaces of the second side plates 14A and 14B, are continuously provided on the first and second end plates 12A and 12B. Further, the pair of second side plates 14A and 14B are provided with the first breaking lines 36A and 36B, the first end plate 12A and the first inner flaps 27A and 27B are provided with the second breaking line 40, and the first side plate is provided. A dividing line 47 is provided in 13. By breaking the packaging box 10 along these lines, the packaged box 10 in the sealed state shown in FIG. 1 can be opened in the first opened state shown in FIG. 2A or the second opened state shown in FIG. 2B. ..

(Overall composition of the packaging box)
The packaging box 10 is made of a corrugated cardboard sheet made of paper, and is formed by a well-known flexogluer as a blank shown in FIG. 3A. The corrugated cardboard sheet has a well-known structure in which a wavy inner ridge is arranged between the front liner and the back liner. The alternate long and short dash line in FIG. 3A is a general-purpose ruled line formed by inserting a ruled line from the back liner so as to compress the wall thickness. The solid line in the blank is a cutting line formed by inserting a blade from the front liner to the back liner.

As shown in FIGS. 1 and 3A, the packaging box 10 is a general-purpose packaging box standardized by JIS Z 1507-0201 except for the first breaking line 36A and 36B, the second breaking line 40, and the dividing line 47. It has the same shape as. The packaging box 10 includes a pair of end plates 12A and 12B arranged so as to face each other at intervals in the X direction. Further, the packaging box 10 includes a first side plate 13 and a third side plate 15 which are arranged so as to face each other at intervals in the Z direction. The first side plate 13 is continuous with the upper edges of the end plates 12A and 12B, and the third side plate 15 is continuous with the lower edges of the end plates 12A and 12B.

In the blank state shown in FIG. 3A, the first end plate 12A, the first side plate 13, the second end plate 12B, and the third side plate 15 are arranged in this order from the right side via the folding curves 18a to 18c composed of general-purpose ruled lines. Is continuous. A fixing plate 16 is continuously provided on the third side plate 15 located at the left end in FIG. 3A via a folding curve 18d. The fixing plate 16 is fixed to the first end plate 12A located at the right end in FIG. 3A with an adhesive (for example, a vinyl acetate emulsion-based adhesive).

The second side plates 14A and 14B are arranged to face each other at intervals in the Y direction, and close the lateral openings surrounded by the end plates 12A and 12B, the first side plate 13, and the third side plate 15. The second side plates 14A and 14B of the present embodiment are respectively composed of outer flaps 20A to 21B. The first outer flaps 20A and 20B are connected to both end edges of the first side plate 13 via a folding curve 24 made of a general-purpose ruled line. The second outer flaps 21A and 21B are connected to both end edges of the third side plate 15 via a folding curve 25 made of a general-purpose ruled line. The dimension from the folding curves 24 and 25 to the tip of the outer flaps 20A to 21B is approximately half the dimension between the first side plate 13 and the third side plate 15.

The first inner flaps 27A and 27B are continuously provided on both side edges of the first end plate 12A via a folding curve 33 made of a general-purpose ruled line. The second inner flaps 28A and 28B are continuously provided on both side edges of the second end plate 12B via a folding curve 34 made of a general-purpose ruled line. The dimensions from the folding curves 33 and 34 to the tips of the inner flaps 27A to 28B are the same as the protruding dimensions of the outer flaps 20A to 21B.

In the packaging box 10, the folding curve 18a extending in the Y direction is the first side of the first end plate 12A to which the first side plate 13 is continuous. Further, the pair of folding curves 33 and 33 extending in the Z direction are second sides extending in a direction intersecting the folding curve 18a and having the second side plates 14A and 14B arranged on the outside. Further, the pair of folding curves 24 and 24 extending in the X direction extend in a direction intersecting the folding curves 18a and 33, and the second side plates 14A and 14B (first outer flaps 20A and 20B) are continuous. It is the third side of the 1 side plate 13. The folding curve 18d extending in the Y direction is the fourth side of the first end plate 12A facing the folding curve 18a.

As shown in FIG. 4, when accommodating the article 1, the packaging box 10 is expanded by the end plates 12A and 12B, the first side plate 13, and the third side plate 15 so as to form a square cylinder. Then, the inner flaps 27B and 28B located on the lower side with respect to the end plates 12A and 12B are folded in a mountain fold, and the outer flaps 20B and 21B located on the lower side with respect to the first and third side plates 13 and 15 are folded. Fold the mountain. Then, using an adhesive (for example, a heat-melted resin), the superimposed inner flaps 27B and 28B and the outer flaps 20B and 21B are bonded (hot melted). In this state, the article 1 is housed in the packaging box 10 through the open upper opening. Then, the inner flaps 20A and 21A and the outer flaps 27A and 28A located on the upper side are folded in a mountain and bonded to each other.

Here, the article 1 may be housed in a posture of lying sideways from the first side plate 13 to the third side plate 15. This is because the article 1 can be stored in the packaging box 10 without creating a gap between the articles 1 and 1. In the case of a general-purpose packaging box, the outer flap is opened when the article 1 is taken out. However, the work of taking out the article 1 from the general-purpose packaging box in this opened state is difficult because there is no gap between the articles 1 and 1. Further, when the article 1 is displayed and sold while being housed in the general-purpose packaging box, the article cannot be seen even when the general-purpose packaging box is viewed from the side, so that the sales promotion effect is poor. Therefore, in the present embodiment, by arranging the partial molds on the flexoglue, the first breaking lines 36A and 36B, the second breaking line 40, and the dividing line 47 are formed, and the large opened portions 68A and 68B are formed in the packaging box 10. It is possible to form.

(Details of breaking line for opening)
As shown in FIGS. 1 and 3B, the first breaking lines 36A and 36B are formed on the first outer flaps 20A and 20B constituting the second side plates 14A and 14B. The first breaking lines 36A and 36B are formed in a substantially L shape from the edge edges 20a and 20b located on the folding curve 33 side to the folding curve 24. The first breaking lines 36A and 36B of the present embodiment are formed from the vicinity of the edge 20a and 20b to the vicinity of the folding curve 24. However, the first breaking lines 36A and 36B may be formed from the edge 20a and 20b to the folding curve 24.

Specifically, the first breaking lines 36A and 36B include a first portion 37 extending in the X direction along the folding curve 24 and a second portion 38 extending in the Z direction along the folding curve 33. The first portion 37 is a piece including a plurality of first cutting lines provided at intervals in the X direction and a second cutting line extending inclined from the end on the second end plate 12B side of each first cutting line. It consists of a zipper. The second portion 38 is composed of a curved cutting line that curves toward the second end plate 12B side from the end portion of the first portion 37 on the second end plate 12B side to the folding curve 24. An uncut continuous portion is formed at a predetermined position of the second portion 38.

Subsequently, referring to FIGS. 1 and 3B, the second breaking line 40 is formed from one first inner flap 27A, through the first end plate 12A, and to the other first inner flap 27B. More specifically, the second breaking line 40 includes first portions 41A and 41B formed on the first inner flaps 27A and 27B, and a second portion 42 formed on the first end plate 12A.

The first portions 41A and 41B are formed by cutting lines formed so as to extend in a direction substantially orthogonal to the folding curves 33 and 33, and the folding curves 33 and 33 are formed from the vicinity of the edge 27a and 27b of the first inner flaps 27A and 27B. It extends to. However, the first portions 41A and 41B may be formed from above the edge 27a to above the edge 27b. In this case, continuous portions are formed in the middle of the first portions 41A and 41B, respectively, in the first inner flaps 27A and 27B. The first portions 41A and 41B are located above half of the total height H of the packaging box 10 (on the side of the first side plate 13). The first portions 41A and 41B of the present embodiment are formed so as to be located substantially at the same height or slightly below the first portion 37 of the first breaking lines 36A and 36B located on the outside.

The second portion 42 is composed of a plurality of cutting lines, and is formed in a substantially U shape from the end portion of the first portion 41A to the end portion of the first portion 41B. The second portion 42 includes a first fracture portion 43, a pair of second fracture portions 44, 44, and a pair of third fracture portions 45, 45. The first fracture portion 43 is composed of a plurality of cutting lines provided at intervals in the Y direction, and extends parallel to the folding curves 18a and 18d. The first broken portion 43 is located below half of the total height H of the packaging box 10. Each of the second fractured portions 44 and 44 is composed of a plurality of cutting lines having an approximately S-shaped shape, and extends outwardly inclined from the end of the first fractured portion 43 to the same height as the first portions 41A and 41B. ing. Each of the third fractured portions 45 and 45 is composed of a plurality of cutting lines provided at intervals in the Y direction, and extends from the end portion of the second fractured portion 44 to the end portions of the first portions 41A and 41B.

Subsequently, referring to FIGS. 1 and 3B, the dividing line 47 is provided on the first side plate 13 from the end of the first breaking line 36A to the end of the first breaking line 36B, and is provided on the first side plate 13. Part or all of it is separated from the packaging box 10. The top of the first side plate 13 includes the folding curves 18a and 18b and the folding curves 24 and 24, which are the outer peripheral edges of the first side plate 13. Further, the end portions of the dividing line 47 of the present embodiment are located at predetermined intervals with respect to the end portions of the first breaking lines 36A and 36B. More specifically, the dividing line 47 includes a third breaking line 49, a pair of fourth breaking lines 53 and 53, and a fifth breaking line 56.

The third breaking line 49 is formed so as to cross the first side plate 13 from the end of the first breaking line 36A to the end of the first breaking line 36B. The third breaking line 49 is located closer to the first end plate 12A than half of the total length L of the first side plate 13, and extends parallel to the folding curves 18a and 18b. The third breaking line 49 includes a plurality of first cutting lines 50a and 50b provided at intervals in the Y direction. Of these, at both ends of the first cutting line 50b located every other one, second cutting lines 51 and 51 inclined outward toward the first end plate 12A are formed.

The fourth breaking lines 53 and 53 extend from the ends of the first breaking lines 36A and 36B to the folding curve 18b in a direction away from the folding curve 18a. The fourth breaking line 53 comprises a diagonal zipper with a plurality of cutting lines 54 extending in parallel. Each cutting line 54 is provided so as to intersect diagonally with respect to the folding curves 24 and 24, and one end is located on the first side plate 13 and the other end is located on the second side plates 14A and 14B. There is. According to the fourth breaking line 53, the first side plate 13 can be broken along the folding curves 24 and 24. The fifth breaking line 56 is provided from the end of one fourth breaking line 53 to the end of the other fourth breaking line 53. The fifth breaking line 56 is composed of a plurality of cutting lines provided at intervals along the folding curve 18b.

By breaking the first outer flaps 20A and 20B along the first breaking lines 36A and 36B, a part of the second side plates 14A and 14B can be separated from the packaging box 10. By breaking the first end plate 12A and the first inner flaps 27A and 27B along the second breaking line 40, a part of the first end plate 12A and a part of the first inner flaps 27A and 27B are packed in the packaging box 10. Can be separated from. By breaking the first side plate 13 along the dividing line 47, a part or all of the first side plate 13 can be separated from the packaging box 10. As a result, the packaging box 10 can be put into the opened state shown in FIG. 2A or FIG. 2B.

(Details of opening assistance structure)
In order to improve the workability at the time of opening, the second side plates 14A and 14B are provided with the first hole portion 58, and the first end plate 12A is provided with the second hole portion 62. Further, the first inner flaps 27A and 27B are provided with an auxiliary folding curve 66.

The first hole portion 58 is formed in the first outer flaps 20A and 20B so as to be located in the intermediate portion on the first breaking lines 36A and 36B. Specifically, the first hole portion 58 is provided so as to be located at a portion where the first portion 37 and the second portion 38 intersect. The first hole portion 58 has a cut-out shape, and is partitioned within the first outer flaps 20A and 20B by a folding curve 59 and a sixth breaking line 60 extending from one end to the other end of the folding curve 59.

The folding curve 59 is composed of a general-purpose ruled line, and is provided so as to be located outside the edge 27a, 27b of the first inner flaps 27A, 27B located inside. Further, the folding curve 59 is inclined so as to intersect the edge edges 27a and 27b. In the present embodiment, the angle α formed by the direction in which the folding curve 59 extends and the direction in which the first portion 37 extends is set to less than 90 degrees (70 degrees in the present embodiment).

The sixth breaking line 60 has a substantially C-shape at both ends of the folding curve 59 and extends in a direction away from the folding curve 33. The sixth breaking line 60 is composed of a plurality of cutting lines provided at intervals.

The second hole portion 62 is formed in the first end plate 12A so as to be located in the intermediate portion of the first fractured portion 43. The second hole portion 62 has a cut-out shape, and is partitioned within the first end plate 12A by a folding curve 63, a pair of seventh breaking lines 64, and a first breaking portion 43. The folding curve 63 is composed of a general-purpose ruled line and extends parallel to the first breaking portion 43. The seventh breaking line 64 is composed of a pair of cutting lines located at intervals, and extends from the end of the folding curve 63 toward the first breaking portion 43.

The auxiliary folding curve 66 is composed of a general-purpose ruled line, and extends from the intersection of the folding curve 18a and the folding curve 33 toward the end of the second breaking line 40. The auxiliary folding curve 66 of the present embodiment is formed in the first inner flaps 27A and 27B from the vicinity of the intersection of the folding curves 18a and 33 to the vicinity of the intersection of the second breaking line 40 and the edge 27a and 27b.

The first inner flaps 27A and 27B are divided into a remaining portion 30 remaining on the packaging box 10 side and a separating portion 31 separated from the packaging box 10 by the second breaking line 40. Further, the separated portion 31 is further divided into a first portion 31a and a second portion 31b by the auxiliary folding curve 66. When the first outer flaps 20A and 20B and the first inner flaps 27A and 27B are adhered to each other, only the first portion 31a located on the first outer flaps 20A and 20B side in the blank state is the first outer flap. It is adhered to 20A and 20B.

(Example of opening work of packaging box)
As shown in FIG. 1, the packaging box 10 is arranged so that the first side plate 13 is located above when opened, unlike the case where the packaging box 10 is stored as shown in FIG. Then, as shown in FIGS. 5A to 5C, the first outer flaps 20A and 20B are broken along the sixth breaking line 60 by pressing the first hole portion 58. Then, by folding the cut-up piece in the first hole 58 into the packaging box 10, the first inner flaps 27A and 27B are sandwiched between the cut-out piece and the first outer flaps 20A and 20B. As a result, the operator can grip the first outer flaps 20A and 20B and the first inner flaps 27A and 27B together.

Then, holding the edge of the first hole 58, the first outer flaps 20A and 20B are pulled outward. Then, the first outer flaps 20A and 20B are broken along the first breaking lines 36A and 36B, and at the same time, the first inner flaps 27A and 27B are broken along the first portions 41A and 41B of the second breaking line 40. Will be done. Specifically, when the first outer flaps 20A and 20B are operated outward, the first inner flaps 27A and 27B are pulled, and the separation portion 31 bends along the auxiliary folding curve 66. Then, a shearing force acts on the second breaking line 40 of the first inner flaps 27A and 27B. Therefore, the first inner flaps 27A and 27B can be easily broken as compared with the case where the auxiliary folding curve 66 is not provided.

Next, as shown in FIG. 6, by pressing the second hole portion 62, the first end plate 12A is broken along the seventh breaking line 64. Then, the cut-and-raised piece in the second hole 62 is folded into the packaging box 10, and the first end plate 12A is pulled outward by holding the edge of the second hole 62. Then, the first end plate 12A is broken along the second portion 42 of the second breaking line 40 in the order of the first breaking portion 43, the second breaking portion 44, and the third breaking portion 45.

Next, when a plurality of packaging boxes 10 are stacked and sold in large quantities while the article 1 is housed, the first side plate 13 is broken along the third breaking line 49 as shown in FIG. 2A. As a result, the packaging box 10 is formed with a first opened portion 68A in which a part of the first end plate 12A, a part of the second side plates 14A and 14B, and a part of the first side plate 13 are separated.

In this first opened state, the first side plate 13 having more than half of the total length L remains. Therefore, another packaging box 10 can be stacked on the first side plate 13 portion in a stable state. Further, since the first opened portion 68A extends from the first end plate 12A to the second side plates 14A and 14B on both sides, the article 1 can be seen even when the packaging box 10 is viewed from the second side plates 14A and 14B. .. Therefore, when the article 1 is displayed and sold while being housed in the packaging box 10, a high sales promotion effect can be obtained.

When the plurality of packaging boxes 10 are not stacked, the first side plate 13 is broken along the fourth breaking line 53 and the fifth breaking line 56, as shown in FIG. 2B. As a result, the packaging box 10 is formed with a part of the first end plate 12A, a part of the second side plates 14A and 14B, and a second opening portion 68B in which the entire first side plate 13 is separated.

Since the second opened portion 68B extends from the first end plate 12A to the second side plates 14A and 14B on both sides in the same manner as the first opened portion 68A, even if the packaging box 10 is viewed from the side other than the first end plate 12A. , Article 1 can be seen. Moreover, in the second opened state, the opening area of the second opened portion 68B is wider than that of the first opened portion 68A, so that a higher sales promotion effect can be obtained. Further, since the article 1 can be easily taken out from above, the convenience of the consumer and the clerk who arranges the articles on the product shelves can be improved.

Further, since the packaging box 1 of the present embodiment is used so that the posture is different between the time of storage and the time of opening, the article 1 is in an upright posture in the opened state. Therefore, since the appearance of the article 1 can be improved, a high sales promotion effect can be obtained from this point as well. Moreover, since the packaging box 10 of the present embodiment has a simple shape in which the first breaking line 36A, 36B, the second breaking line 40, and the dividing line 47 are provided in the general-purpose packaging box, the manufacturing cost can be reduced.

The packaging box 10 of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

For example, the formation positions and shapes of the first breaking line 36A and 36B, the second breaking line 40, the third breaking line 49, the fourth breaking line 53, and the fifth breaking line 56 can be changed as desired. is there. Further, these may be configured by a liner cut in which the back liner side is cut, and may be configured as long as the predetermined portion can be broken by the operation of the operator. Further, it is not necessary to form the dividing line 47 on the first side plate 13. Further, the first hole portion 58 and the second hole portion 62 may not be formed.

The packaging box 10 of the above embodiment is formed by punching out a corrugated cardboard sheet made of paper, but may be formed by punching out a corrugated cardboard sheet made of resin. Further, the packaging box 10 is not limited to the corrugated cardboard sheet, and may be formed of a single-layer thick paper or a resin sheet.

1 ... Article 10 ... Packaging box 12A, 12B ... End plate 13 ... 1st side plate 14A, 14B ... 2nd side plate 15 ... 3rd side plate 16 ... Fixing plate 18a ... Folded curve (1st side)
18b ... Fold curve 18c ... Fold curve 18d ... Fold curve (4th side)
20A, 20B ... 1st outer flap 20a, 20b ... Edge edge 21A, 21B ... 2nd outer flap 24 ... Folded curve (third side)
25 ... Folded curve 27A, 27B ... First inner flap 27a, 27b ... Edge edge 28A, 28B ... Second inner flap 30 ... Remaining part 31 ... Separated part 31a ... First part 31b ... Second part 33 ... Folded curve (No. 2 sides)
34 ... Folding curve 36A, 36B ... 1st breaking line 37 ... 1st part 38 ... 2nd part 40 ... 2nd breaking line 41A, 41B ... 1st part 42 ... 2nd part 43 ... 1st breaking part 44 ... 2nd Break portion 45 ... Third break portion 47 ... Break line 49 ... Third break line 50a, 50b ... First cut line 51 ... Second cut line 53 ... Fourth break line 54 ... Cut line 56 ... Fifth break line 58 ... 1st hole 59 ... Fold curve 60 ... 6th break line 62 ... 2nd hole 63 ... Fold curve 64 ... 7th break line 66 ... Auxiliary fold curve 68A, 68B ... Opened part

Claims (9)

An end plate having a first side and a pair of second sides extending in a direction intersecting the first side ,
A first side plate which is continuous with the front Symbol first side,
Are arranged respectively along the front Stories second side, a second pair of contiguous to the third side of Ru extending in a direction intersecting the first side and the second side of the first side plate Side plate and
And each continuously before Symbol second side, and a pair of inner flaps are arranged on an inner surface of the second side plate,
Each of the pair of second side plates is provided with a first breaking line from the edge on the second side to the third side.
The end plate and the pair of inner flaps are provided with a second breaking line from one inner flap to the other inner flap .
A packaging box in which an auxiliary folding curve is provided on the inner flap from the intersection of the first side and the second side toward the end of the second breaking line . A third side plate is continuously provided on the fourth side of the end plate facing the first side.
The packaging box according to claim 1, wherein the second side plate is composed of an outer flap connected to the first side plate and the third side plate, respectively. The packaging box according to claim 1 or 2, wherein the first side plate is provided with a dividing line extending from one end of the first breaking line to the other end of the first breaking line. The packaging box according to claim 3, wherein the dividing line includes a third breaking line formed so as to cross the first side plate. The packaging box according to claim 3 or 4, wherein the dividing line includes a pair of fourth breaking lines extending in a direction away from the end of the first breaking line with respect to the first side. The packaging box according to claim 5, wherein the dividing line includes a fifth breaking line extending from one end of the fourth breaking line to the other end of the fourth breaking line. The packaging box according to any one of claims 1 to 6, wherein the second side plate is provided with a hole in an intermediate portion on the first breaking line. The hole portion is a folding curve located outside the tip of the inner flap, and a sixth breaking line extending from one end to the other end of the folding curve in a direction away from the second side, and is inside the second side plate. The packaging box according to claim 7, which is partitioned in. The packaging box according to claim 8, wherein the angle formed by the portion of the first breaking line extending along the third side and the folding curve is less than 90 degrees.

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