JP2017186033A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box from which a stored object can be easily taken out, and which has a simplified structure.SOLUTION: A packaging box 10 comprises: end walls 12A, 12B; first side walls 13A, 13B; and second side walls 16A, 16B. The end walls 12A, 12B comprise respectively, a pair of inner flaps 17A-18B arranged on an inner surface of the second side wall 16A, 16B. A breakage line 25 from one inner flap 17A, 18A to the other inner flap 17B, 18B is provided on the end walls 12A, 12B and inner flaps 17A-18B. When the packaging box is broken along the breakage line 25, the end walls 12A, 12B and inner flaps 17A-18B are divided into a first part 42 continuous to the first side wall 13B and a second part 43 continuous to the first side wall 13A. The first part 42 and second part 43 can be rotated in a first posture in which the parts rotate outward, with a first folded line 15 as a center, and in a second posture in which an opening surrounded by the side walls 13A, 13B, 16A, 16B is closed.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a packaging box.

  A packaging box having a pair of end walls opposed to each other and a pair of side walls arranged opposite to each other so as to be adjacent to these end walls and having openings at both ends surrounded by the lid walls is known. ing. Patent Document 1 describes a packaging box in which an opening that can be opened and closed is provided on one of a pair of side walls so that an internal article can be taken out and resealed from the opening.

Japanese Patent No. 5294140

  However, in the packaging box of Patent Document 1, since only a part of one side wall can be opened, workability when taking out an internal article is poor. The first side wall is composed of a double wall composed of a top panel and a top surface inner panel, and the lid wall is composed of a triple wall composed of a side intermediate panel, a side inner panel and a side outer panel. Therefore, since the structure of a packaging box is complicated, cost becomes high.

  It is an object of the present invention to form a packaging box with a simple configuration that allows easy removal of stored articles.

  The present invention includes an end wall, a pair of first side walls that are continuous with first sides on both sides of the end wall, and second sides at both ends of the end wall that extend in a direction intersecting the first side. A pair of second side walls arranged in a row, and a pair of inner flaps arranged on the inner surface of the second side wall, which are continuous with the second sides at both ends of the end wall, The pair of inner flaps provide a packaging box in which a break line is provided from one inner flap to the other inner flap.

  According to this packaging box, for example, the center part of the breaking line of the end wall is broken, the breaking edge of the end wall is gripped and pulled outward, and the remaining breaking line part of the end wall and the inner flap are broken. The line portion can be broken. Therefore, workability at the time of opening a packaging box can be improved. Further, when the end wall and the pair of inner flaps are broken along the breaking line, the end wall and the pair of inner flaps are divided into a first portion that continues to one first side wall and a second portion that continues to the other first side wall. The In addition, the first part and the second part are a first posture rotated outward about the first side, and a second posture blocking the opening surrounded by the first side wall and the second side wall. It can be rotated.

  In the first posture, the entire opening surrounded by the first side wall and the second side wall can be opened. Therefore, since a wide opening area can be ensured, workability when taking out an internal article can be improved. In the second posture, the packaging box can be resealed by closing the opening. Therefore, when all the articles in the packaging box cannot be taken out, it can be stored while being accommodated in the packaging box, so that convenience can be improved. And since a packaging box is a simple structure provided with an end wall, a pair of 1st side wall, and a pair of 2nd side wall, it can reduce manufacturing cost.

  The end wall may be provided with a pair of first auxiliary lines extending from the breaking line toward one first side wall and inclined toward the second side. According to this aspect, the first part side of the end wall is bent along the first auxiliary line by gripping the pulling edge on the first part side of the end wall and pulling it outward. Thereby, since the shearing force acts on the remaining broken line portion of the end wall, the remaining broken line portion of the end wall can be easily broken as compared with the case where the first auxiliary line is not provided. Therefore, workability at the time of opening a packaging box can be improved.

  A second auxiliary line extending along the break line may be provided on the end wall on the one first side wall side of the break line. According to this aspect, the first portion side of the end wall is bent along the second auxiliary line by gripping the pulling edge on the first portion side of the end wall and pulling outward. Thereby, since the bending of the end wall along the first auxiliary line can be promoted, the unpacking workability of the packaging box can be further improved.

  The inner flap may also be provided with a third auxiliary line that extends from the breaking line toward the first side wall and is inclined toward the second side. According to this aspect, when the inner flap is continuously broken along the breaking line by pulling the first portion side of the end wall, the inner wall is pulled by the bending of the end wall along the first auxiliary line. The flap bends along the third auxiliary line. Thereby, since a shearing force acts on the broken line portion of the inner flap, the inner flap can be easily broken along the broken line as compared with the case where the third auxiliary line is not provided.

  The second side wall may include a pair of outer flaps continuous with the first side wall, and the tips of the outer flaps may be attached to each other with an adhesive tape. The adhesive tape is bent and stuck from the outer flap to the end wall. Since the packaging box of this aspect is a general-purpose cardboard box standardized by JIS Z 1507-0201, the configuration is simple and the assembly workability is also good. In this case, it is preferable that the said break line is located in the other 1st side wall side rather than the said adhesive tape. According to this aspect, the adhesive tape can be broken by pulling the first portion side of the end wall outward. Therefore, workability at the time of opening a packaging box can be improved.

  An insertion portion that is a break starting point of the break line may be provided at the center of the end wall on the break line. According to this aspect, the workability of breaking the center of the end wall along the break line can be improved. Moreover, since the operator can intuitively understand the method of opening work, convenience can be improved.

  In the packaging box of the present invention, the end wall and the pair of inner flaps are divided into the first part and the second part by breaking along the break line. When the first part and the second part are rotated around the first side, the entire opening surrounded by the first side wall and the second side wall can be opened. Therefore, since a wide opening area can be ensured, workability when taking out an internal article can be improved. Moreover, since a packaging box is a simple structure provided with an end wall, a pair of 1st side wall, and a pair of 2nd side wall, it can reduce manufacturing cost.

The perspective view which shows the packaging box of this embodiment. The perspective view which shows the unsealed state of FIG. The top view which shows the blank of a packaging box. FIG. 3B is a partially enlarged view of FIG. 3A. The perspective view which shows the state before sealing. The perspective view which shows the 1st process at the time of opening. The top view which shows the 2nd process at the time of opening. The top view which shows the 3rd process at the time of opening. FIG. 7B is a lower perspective view of FIG. 7A.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, terms indicating specific directions and positions (for example, terms including “up”, “down”, “side”, “end”, “top”, “bottom”) are used as necessary. However, the use of these terms is to facilitate understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms.

  1 and 2 show a packaging box 10 according to the present embodiment. Referring to FIG. 1, the packaging box 10 includes end walls 12A and 12B, first side walls 13A and 13B, and second side walls 16A and 16B. Inner flaps 17A to 18B disposed on the inner surfaces of the second side walls 16A and 16B are connected to the end walls 12A and 12B. The end walls 12 </ b> A and 12 </ b> B and the inner flaps 17 </ b> A to 18 </ b> B are provided with an unsealing structure including an unsealing breaking line 25 and breaking promoting auxiliary lines 46 to 49. With this opening structure, the packaging box 10 can open the entire opening surrounded by the first side walls 13A and 13B and the second side walls 16A and 16B, as shown in FIG.

(Whole structure of packaging box)
The packaging box 10 is formed as a single blank as shown in FIG. 3A by using a cardboard sheet made of paper by flexo-glure which is a well-known paper device punching device. The corrugated cardboard sheet has a well-known configuration in which a wavy shin is disposed between the front liner and the back liner. In addition, the broken line in FIG. 3A is a general-purpose ruled line formed by putting a rule 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.

  Referring to FIG. 1 together with FIG. 3A, the packaging box 10 includes a pair of end walls 12A and 12B that are disposed opposite to each other, and a pair of first side walls that are disposed so as to be adjacent to the end walls 12A and 12B. 13A, 13B. The end walls 12A and 12B are walls parallel to the XY plane, and are located at a predetermined interval in the Z direction. The first side walls 13A and 13B are continuous with the left and right side edges of the end walls 12A and 12B, and are bent in a direction substantially orthogonal to the end walls 12A and 12B. Referring to FIG. 3A, these are connected from the left side through the first folding line 15 in the order of the first side wall 13A, the end wall 12A, the first side wall 13B, and the end wall 12B. In addition, a fixing wall 14 is connected to the first side wall 13A located at the left end in FIG. The fixing wall 14 is fixed to the second end wall 12B located at the right end in FIG. 3A by gluing. The first folding line 15 is a first side that is located on the left and right sides of the end walls 12A and 12B and extends in the Y direction.

  Upper inner flaps 17A and 17B are connected to upper end edges of the end walls 12A and 12B, and lower inner flaps 18A and 18B are connected to lower end edges of the end walls 12A and 12B. These inner flaps 17A to 18B are disposed on the inner surfaces of the second side walls 16A and 16B. The inner flaps 17A to 18B are connected to the end walls 12A and 12B via a second folding line 19 made of a general ruled line. The second folding line 19 is a second side located in the upper and lower ends of the end walls 12A and 12B and extending in the X direction so as to intersect the first folding line 15. The protruding dimensions of the inner flaps 17A to 18B from the second folding line 19 to the flap tip are the same as the protruding dimensions of the outer flaps 20A to 21B described later.

  The second side walls 16A and 16B close the upper and lower openings surrounded by the end walls 12A and 12B and the first side walls 13A and 13B. These second side walls 16A and 16B are walls parallel to the ZX plane, and are arranged to face each other with an interval in the Y direction. The second side walls 16 </ b> A and 16 </ b> B are superposed on the outer surfaces of the inner flaps 17 </ b> A to 18 </ b> B along the second folding line 19. The second side walls 16A and 16B of the present embodiment are each constituted by a pair of outer flaps 20A to 21B.

  The upper outer flaps 20A and 20B are connected to the upper end edges of the first side walls 13A and 13B, and the lower outer flaps 21A and 21B are connected to the lower end edges of the first side walls 13A and 13B. These outer flaps 20 </ b> A to 21 </ b> B are connected to the first side walls 13 </ b> A and 13 </ b> B via a third folding line 22 made of a general ruled line. The third folding line 22 is a third side located in the upper and lower ends of the first side walls 13A and 13B and extending in the Z direction so as to intersect the first folding line 15. Moreover, in the blank state of FIG. 3A, the 3rd folding line 22 and the 2nd folding line 19 are extended on the straight line. The projecting dimension of the outer flaps 20A to 21B from the third folding line 22 to the tip of the flap is approximately half of the dimension between the opposing first side walls 13A and 13B. As a result, the tips of the upper outer flaps 20A and 20B coincide with each other without a gap, and the tips of the lower outer flaps 21A and 21B also coincide with each other without a gap.

  When an article is stored in the packaging box 10, the lower inner flaps 18A and 18B are bent with respect to the end walls 12A and 12B, and the lower outer flaps 21A and 21B are bent with respect to the first side walls 13A and 13B. . And the front-end | tips of lower outer flap 21A, 21B are stuck together by sticking the adhesive tape 52 to the front-end | tip outer surface of lower side outer flap 21A, 21B. As shown in FIG. 4, the adhesive tape 52 is stuck from one end wall 12A through the lower outer flaps 21A and 21B to the other end wall 12B.

  When the opening at one end of the packaging box 10 is closed in this manner, the opening at the other open end is arranged upward, and the article 54 is accommodated inside. At this time, as shown in FIG. 4, when the article 54 is a thin and long package (for example, an ice bar), the articles 54 are laid side by side to be stacked without causing a gap between the articles 54 and 54. Can be accommodated.

  When the article 54 is stored in the packaging box 10, the upper inner flaps 17A and 17B are bent with respect to the end walls 12A and 12B, and the upper outer flaps 20A and 20B are bent with respect to the first side walls 13A and 13B. And the front-end | tips of upper side outer flap 20A, 20B are stuck by sticking the adhesive tape 52 on the front-end | tip outer surface of upper side outer flap 20A, 20B. Further, the adhesive tape 52 is stuck from one end wall 12A through the upper outer flaps 20A and 20B to the other end wall 12B.

  When opening a packaging box that has not been opened, one of the second side walls is opened by peeling the adhesive tape. At this time, it is not preferable to cut the adhesive tape using a cutter knife because the internal article may be damaged. Further, the work of taking out the articles is troublesome because there is no gap between the articles accommodated in the horizontal direction. Furthermore, when not taking out all articles, it is necessary to reseal the packaging box. This resealing operation is troublesome because it needs to be performed by the outer flap and the inner flap. Therefore, in the packaging box 10 of the present embodiment, the end walls 12A and 12B can be manually opened like an open / close lid so that re-sealing can be easily performed.

(Details of opening structure)
1 and 3A, the first end wall 12A and the pair of inner flaps 17A and 18A, and the second end wall 12B and the pair of inner flaps 17B and 18B are provided with break lines 25. ing. The breaking line 25 extends in the Y direction from the vicinity of the tip of the upper inner flaps 17A and 17B to the vicinity of the tip of the lower inner flaps 18A and 18B.

  Referring also to FIG. 3B, the first break line portion 25a formed on the end walls 12A and 12B is formed closer to the first side wall 13A than the center in the X direction of the end walls 12A and 12B. Thereby, the 1st breaking line part 25a is located in the adhesive tape 52 stuck on end wall 12A, 12B, and a predetermined space | interval. The first break line portion 25a includes a plurality of break portions 27 arranged side by side in the Y direction with respect to the end walls 12A and 12B. Each broken portion 27 has a generally Y shape in which the center side in the Y direction of the end walls 12A and 12B is bifurcated.

  In the center of the first break line portion 25a, an insertion portion 28 serving as a break start point of the break line 25 is provided. The insertion portion 28 has a cut-and-raised structure including a folding line 29, a pair of first cutting lines 30 and 30, and a second cutting line 31. The folding line 29 is formed of a general-purpose ruled line, is located at a predetermined interval on the first side wall 13B side with respect to the broken part 27 row, and extends in the Y direction along the first folding line 15. The first cutting lines 30 and 30 extend in a curved shape from both ends of the folding line 29 to the ends of the fracture portions 27 on the center side in the Y direction of the end walls 12A and 12B. The second cutting line 31 is formed in a curved shape protruding from the end of one first cutting line 30 to the end of the other first cutting line 30 toward the first side wall 13A. In a predetermined position of the first and second cutting lines 30 and 31, a continuous portion in an uncut state is left.

  The second break line portion 25b formed in the inner flaps 17A to 18B has a curved shape from a portion where the first break line portion 25a intersects the second folding line 19 toward the tip center of the inner flaps 17A to 18B. Is formed. The second break line portion 25b includes a first break portion 33 formed on the end walls 12A and 12B side and a second break portion 36 formed on the tip side of the inner flaps 17A to 18B.

  The first breaking portion 33 includes a plurality of first cutting lines 34 that are formed in a perforated shape at predetermined intervals, and the first side wall 13B side from the end walls 12A and 12B side end portions of the first cutting line 34. It consists of a piece zipper provided with the 2nd cutting line 35 which inclines to. The end of the second cutting line 35a is located at the intersection of the first break line portion 25a and the second folding line 19. The first cutting line 34a that is continuous with the second cutting line 35a is located closer to the first first side wall 13A than the fracture portion 27 is. Due to the cutting lines 34a and 35a, a locking projection 38 that protrudes toward the first side wall 13A is formed in the second break line portion 25b.

  The 2nd fracture | rupture part 36 consists of a cutting line extended in the curve shape from the flap front end side edge part of the 1st fracture | rupture part 33 to the front-end edge vicinity of inner flap 17A-18B. A continuous portion is left at a predetermined position of the second fracture portion 36. This continuous portion is also formed at the tips of the inner flaps 17A to 18B.

  As shown in FIG. 2, the end walls 12A and 12B and the inner flaps 17A to 18B are broken along the breaking line 25, whereby the first portion 42 continuous to one first side wall 13B and the other first wall 42B. The first side wall 13A is divided into second portions 43 that are continuous with each other. The area of the first portion 42 is larger than the area of the second portion 43 due to the formation position of the first break line portion 25a. Further, the cut and raised piece of the insertion portion 28 is continuous with the first portion 42. Further, the locking projection 38 protrudes from the fracture edge of the first portion 42, and a locking groove 39 is formed at a position corresponding to the locking projection 38 of the second portion 43.

  The end walls 12A and 12B are provided with auxiliary lines 46 and 47 for promoting breakage along the first break line portion 25a. Specifically, the end walls 12 </ b> A and 12 </ b> B are provided with a folding line 45 that is located at a distance from the folding line 29 on the first side wall 13 </ b> B side. The folding line 45 is formed of a general ruled line and extends in parallel along the first folding line 15. The first auxiliary line 46 is formed of a general ruled line, and a pair is provided on the first side wall 13B side of the first break line portion 25a. One end of each of the first auxiliary lines 46 and 46 is located at the end of the folding line 45, the other end is located on the first side wall 13B side of the end walls 12A and 12B, and the first auxiliary lines 46 and 46 are inclined toward the second folding line 19. ing. The second auxiliary line 47 is formed of a lead ruled with a cutting line provided at a predetermined interval on the folding line, and extends in the Y direction along the first broken line portion 25a. One end of the second auxiliary line 47 is positioned in the vicinity of one second folding line 19, and the other end is positioned in the vicinity of the other second folding line 19. The extension line of the first auxiliary line 46 and the extension line of the second auxiliary line 47 are provided so as to intersect on the second folding line 19.

  The inner flaps 17A to 18B are provided with auxiliary lines 48 and 49 for promoting breakage along the second break line portion 25b. The 3rd auxiliary line 48 consists of a general ruled line, and is provided in the 1st side wall 13B side. The third auxiliary line 48 has one end located at a continuous portion of the first breakage portion 33 and the second breakage portion 36 and the other end located on the first side wall 13B side of the inner flaps 17A to 18B. It is inclined towards 19. The fourth auxiliary line 49 is formed of a lead rule, and extends in the Z direction so as to be orthogonal to the second folding line 19. Referring to FIG. 3B, the fourth auxiliary line 49 extends on the same straight line with respect to the second auxiliary line 47. The fourth auxiliary line 49 has one end located in the vicinity of the second folding line 19 and the other end located at the leading edge of the inner flaps 17A to 18B. The extension line of the third auxiliary line 48 and the extension line of the fourth auxiliary line 49 are provided so as to intersect on the second folding line 19. Further, the intersection of the third and fourth auxiliary lines 48 and 49 and the intersection of the first and second auxiliary lines 46 and 47 coincide on the second folding line 19.

  The packaging box 10 is a general-purpose cardboard box standardized by JIS Z 1507-0201 except for the opening structure. Therefore, the configuration is simple, and the manufacturing cost of the packaging box 10 can be reduced. Further, when the packaging box 10 is assembled, the second side wall 16B in which the lower ends of the end walls 12A, 12B and the first side walls 13A, 13B are composed of the lower flaps 18A, 18B, 21A, 21B, as in the above-described procedure. It is blocked by. Thereafter, after the article 54 is accommodated therein, the upper end is closed by the second side wall 16A including the upper side flaps 17A, 17B, 20A, and 20B. The outer flaps 20 </ b> A to 21 </ b> B are attached to each other with an adhesive tape 52 at their tips. Thus, the packaging box 10 of this embodiment has good assembly workability. In this state, the inner flaps 17A to 18B are not attached and locked to any wall.

  Next, the opening operation of the packaging box 10 will be described. In the following description, the case of opening the end wall 12A side will be described as an example, but the same applies to the case of opening the end wall 12B side.

  For example, as shown in FIG. 5, the end wall 12A is positioned upward, and the center of the first break line portion 25a is broken. At this time, since the insertion portion 28 is provided on the end wall 12A, the operator can intuitively understand the method of opening work. That is, the end wall 12A is broken along the first and second cutting lines 30 and 31 by pushing the insertion portion 28 of the end wall 12A inward. Next, the breaking edge on the first portion 42 side of the end wall 12A is gripped and pulled outward as indicated by an arrow A.

  Then, as shown in FIG. 6, the first portion 42 side of the end wall 12 </ b> A folds along the second auxiliary line 47 and folds along the first auxiliary line 46. Thereby, the first portion 42 and the second portion 43 of the end wall 12A move away from each other in the Z direction and the X direction with the first break line portion 25a as a boundary. By this movement, a shearing force acts on the first break line portion 25a, so that the end wall 12A can be easily broken as compared with the case where the first and second auxiliary lines 46.47 are not provided.

  Here, the bending angle of the first auxiliary line 46 is the case where the first portion 42 side of the end wall 12A is pulled with the second auxiliary line 47 as a fulcrum, as compared with the case where the first fold line 15 is used as a fulcrum. Is big. This is because the second auxiliary line 47 serving as a fulcrum is closer to the insertion portion 28 than the first folding line 15. In this way, by using the second auxiliary line 47 as a fulcrum, the bending of the first auxiliary line 46 can be promoted, and the amount of movement of the breaking edge on the first portion 42 side can be increased. Therefore, since a large shearing force can be applied to the first break line portion 25a of the end wall 12A, the remaining break portion 27 can be easily and reliably broken.

  As shown in FIG. 7A, when the operation on the first portion 42 side of the end wall 12A is continued, the inner flaps 17A and 18A continuous to the end wall 12A are pulled by the bending of the first auxiliary line 46, and the Y direction inward And move upward in the Z direction. By this movement, the adhesive tape 52 adhered from the outer flaps 20A to 21B to the end wall 12A is broken. Further, since a shearing force acts on the second break line portion 25b, the inner flaps 17A and 18A can be easily broken.

  More specifically, as shown in FIG. 7B, when the inner flaps 17A and 18A are pulled by the end wall 12A, the inner flaps 17A and 18A are bent along the third auxiliary line 48 and the fourth auxiliary line 49. Thereby, the moving amount | distance of the fracture | rupture edge by the side of the 1st part 42 of inner flap 17A, 18A can be enlarged. Therefore, since a large shearing force can be applied to the second break line portion 25b of the inner flaps 17A and 18A, the first break portion 33 can be easily and reliably broken. And if all the 1st fracture | rupture parts 33 are fractured | ruptured, the 2nd fracture | rupture part 36 will be fractured | ruptured continuously.

  The end wall 12A and the first portion 42 and the second portion 43 of the inner flaps 17A and 18A thus divided are centered on the first folding line 15 in the first posture as the opening position and the sealing position. It can rotate to a certain second position.

  For example, as shown in FIG. 2, the first portion 42 and the second portion 43 are in a first posture rotated 180 degrees outward. When the divided first portion 42 and second portion 43 are changed from the second posture to the first posture, the first breakage of the concavo-convex shape by the curved second break line portion 25 b and the cutting lines 34 and 35. For example, by rotating only the first portion 42 by the portion 33, the second portion 43 can be interlocked and rotated outward.

  Moreover, in the 1st attitude | position, the whole opening enclosed by 1st side wall 13A, 13B and 2nd side wall 16A, 16B can be opened. Thereby, since a wide opening area can be secured, workability when taking out the internal article 54 can be improved. Further, when the article 54 is a thin and elongated package, the packaging box 10 with the end wall 12A opened can take out the article 54 in the vertical direction, and can grasp the packaging portion, thereby improving the take-out workability. .

  When all the articles 54 cannot be taken out, the opening surrounded by the first side walls 13A and 13B and the second side walls 16A and 16B is closed by rotating the first portion 42 and the second portion 43 to the second posture. be able to. Thereby, since the open end wall 12A portion can be resealed and the article 54 can be stored while being accommodated in the packaging box 10, the convenience can be improved. In the second posture, the locking protrusion 38 of the first portion 42 is locked in the locking groove 39 of the second portion 43. Therefore, the resealed state of the packaging box 10 can be reliably maintained.

  In addition, the packaging box 10 of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, as long as the break line 25 is the structure which can fracture | rupture end wall 12A, 12B and inner flap 17A-18B, any of a zipper, a zipper, a perforated cutting line, etc. are applicable. The auxiliary lines 46 to 49 may have any configuration as long as the end walls 12A and 12B and the inner flaps 17A to 18B can be bent. The packaging box 10 may be configured without the second auxiliary line 47 and the fourth auxiliary line 49. Further, the third auxiliary line 48 may be omitted.

  The breaking line 25 may be provided only on one of the end walls 12A and 12B and only on the inner flaps 17A to 18B continuing to the one end wall 12A and 12B. Further, the packaging box 10 may be formed by punching a resin cardboard sheet, or may be formed by a single cardboard or resin sheet. Further, the packaging box may have an octagonal shape in plan view having a chamfered wall between the end wall and the first side wall, or may be four or more polygonal shapes in plan view. The packaging box may be provided with an end wall only on one side and the other side closed with a separate closing member.

DESCRIPTION OF SYMBOLS 10 ... Packaging box 12A, 12B ... End wall 13A, 13B ... 1st side wall 14 ... Adhering wall 15 ... 1st folding line 16A, 16B ... 2nd side wall 17A, 17B ... Upper inner flap 18A, 18B ... Lower inner flap 19 ... 2nd folding line 20A, 20B ... Upper outer flap 21A, 21B ... Lower outer flap 22 ... 3rd folding line 25 ... Breaking line 25a ... 1st breaking line part 25b ... 2nd breaking line part 27 ... Breaking part 28 ... Insertion part 29 ... Folding curve 30 ... First cutting line 31 ... Second cutting line 33 ... First breaking part 34, 34a ... First cutting line 35, 35a ... Second cutting line 36 ... Second breaking part 38 ... Stop projection 39 ... Locking groove 42 ... First part 43 ... Second part 45 ... Folding curve 46 ... First auxiliary line 47 ... Second auxiliary line 48 ... Third auxiliary line 49 ... Fourth auxiliary line 52 ... Adhesive tape 54 ... goods

Claims (7)

End walls,
A pair of first side walls that are continuous with the first sides on both sides of the end wall;
A pair of second side walls disposed along second sides of both ends of the end wall extending in a direction intersecting the first side;
A pair of inner flaps that are continuous with the second side at both ends of the end wall and are disposed on the inner surface of the second side wall;
The packaging box, wherein the end wall and the pair of inner flaps are provided with a breaking line from one inner flap to the other inner flap.   2. The packaging box according to claim 1, wherein the end wall is provided with a pair of first auxiliary lines extending from the breaking line toward one first side wall and inclined toward the second side.   The packaging box according to claim 2, wherein the end wall is provided with a second auxiliary line extending along the breaking line on the one first side wall side of the breaking line.   4. The packaging box according to claim 2, wherein the inner flap is provided with a third auxiliary line that extends from the breaking line toward the first side wall and is inclined toward the second side.   The said 2nd side wall is provided with a pair of outer flap which continues to the said 1st side wall, The front-end | tips of these outer flaps are adhere | attached with the adhesive tape. Packaging box.   The packaging box according to claim 5, wherein the breaking line is located on the other first side wall side than the adhesive tape.   The packaging box according to any one of claims 1 to 6, wherein an insertion portion that is a break starting point of the break line is provided at a center of the end wall on the break line.

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