JP5990396B2 - Packaging box and method for detecting mischief of packaging box - Google Patents

Description

  The present invention relates to a packaging box and a tampering detection method for the packaging box, and in particular, a main body which is opened as it is and becomes a display case for sale as it is, and a side plate is provided on each of the four sides of the outer side, and the upper portion is closed by a lid plate. The present invention relates to a packaging box formed by combining a lid and a mischief detection method in such a packaging box.

  For example, as disclosed in Japanese Patent Application Laid-Open No. 2011-246140 and Japanese Patent Application Laid-Open No. 2012-30892, the main body (body) that becomes the display case for sale with the upper part opened, and the four sides of the outer part respectively There has been proposed a packaging box that is provided with a side plate and a lid whose upper portion is closed by a lid plate. In such a packaging box, when the above-mentioned lid is removed at the time of display for sale, it can be displayed as it is using the main body with the contents in it. There is an advantage that no special display means is required.

  In such a packaging box, it is necessary to remove the lid as described above, particularly when displaying for sale. For this purpose, the lid body is removed by rotating the lid body from the upper side to the back side while pressing the left and right side portions of the main body (body), thereby opening the upper part of the main body. Therefore, for such an opening operation, the left and right side plates of the lid are formed with a lacking portion so as to press the main body for the opening operation, and the main body can be pressed using this lacking portion.

  However, according to the packaging box according to such a structure, in order to press the main body for opening, the contents are removed by inserting fingers into the inner side of the main body through the missing portions formed on the left and right side plates of the lid. May induce mischief. Conventionally, it was defenseless against such mischief and removal of contents. Therefore, no countermeasures (tamper evidence function) have been made against tampering or content removal.

JP 2011-246140 A JP 2012-30892 A

  SUMMARY OF THE INVENTION An object of the present invention is a packaging comprising a combination of a main body whose upper part is opened to be used as a display case for sale as it is, and a lid body which is provided with side plates on the four sides of the outer part and whose upper part is closed by a lid plate. It is to provide a packaging box that takes measures especially against mischief and removal of contents in a box and that can be surely notified when the above-mentioned mischief and contents are removed.

  Another object of the present invention is to provide a packaging box that can detect mischief by simply forming a break line at a position where it is most likely to be mischievous.

  The above-described problems and other problems of the present invention will be made clear by the technical idea of the present invention described below and the embodiments thereof.

The main invention of this application is:
A packaging box comprising a combination of a main body that is open as it is and becomes a display case for sale as it is, and a lid that is provided with side plates on each of the four sides of the outer side and whose upper portion is closed by a lid plate,
The front plate of the lid is provided with an opening separating plate surrounded by a break line,
The left and right side plates of the lid have a missing portion that is lacking over a predetermined length from the back side to the front side so that the back side portion is exposed at the lower end side of the left and right side plates of the main body. Formed,
The lacking portion has a flat upper edge, and a front end edge is obliquely absent toward the front, and the height dimension of the lacking portion in the portion where the upper edge is flat is the packaging. Within the range of 1/10 to 1/3 of the height dimension of the box,
A break line is formed obliquely upward from the horizontal direction from the intersecting position of the flat upper edge of the missing portion of the left and right side plates of the lid and the oblique front end edge ,
When the lid is removed and opened on the back plate of the lid, a notch whose upper end is a pivot center is formed from the bottom upward to a predetermined height, and the missing portions of the left and right side plates of the lid are formed. The flat upper edge relates to a packaging box that is lower than the upper edge of the opening cut of the back plate of the lid .

Here, the exposed portion on the lower end side of the left and right side plates of the main body exposed by the lacking portion of the left and right side plates of the lid may be a portion that presses the main body during the opening operation. The outer angle formed by the flat upper edge of the lacking portion of the left and right side plates of the lid and the oblique front end edge is 180 degrees or more, and when the outer angle is divided into three equal parts, The break line may be formed on the left and right side plates of the lid so as to fall within an angle range of 3. Furthermore, the outer angle formed by the flat upper edge of the lacking portion of the left and right side plates of the lid and the oblique front end edge is 180 degrees or more, and when the outer angle is divided into three equal parts, The break line may be formed on the left and right side plates of the lid so as to enter the angle range of / 3 and extend forward from the vertical direction.

  Further, the flat upper portion of the lacking portion of the left and right side plates of the lid may be 0.5 to 4 cm lower than the upper edge of the opening cut of the back side plate of the lid. Further, the left and right side plates of the main body have a lower front end portion, and the front side of the lowered left and right side plates is a protrusion projecting upward to the extended position of the tampering detection breaking line. The height of the protrusion may be in the range of 2/3 to 9/10 of the total height of the packaging box.

The invention related to the tampering detection method is a packaging box in which an upper part is opened and a main body, which becomes a display case for sale, is provided with a side plate on each of the four sides of the outer side and a lid whose upper part is closed by a lid. In
The lid is removed by opening the separating plate for opening formed by being surrounded by a break line on the front plate of the lid, and the lid is rotated to open the lid.
In addition, the left and right side plates of the main body are exposed at the time of opening, and the left and right side plates of the main body are exposed and pressed to the lower end sides of the left and right side plates of the lid from the back side to the front side. Form the
Forming a break line for detecting a shift from the intersection of the flat upper edge of the lacking portion and the oblique front end edge obliquely upward from the horizontal direction,
If a finger is inserted between the left and right side plates of the lid from one of the left and right side plates of the lid and the left and right side plates of the main body from the lack of the left and right side plates of the lid, the tampering detection breaking line is broken. It was designed to let people know what was wrong.

The main invention of this application is:
A packaging box comprising a combination of a main body that is open as it is and becomes a display case for sale as it is, and a lid that is provided with side plates on each of the four sides of the outer side and whose upper portion is closed by a lid plate,
The front plate of the lid is provided with an opening separating plate surrounded by a break line,
The left and right side plates of the lid have a missing portion that is lacking over a predetermined length from the back side to the front side so that the back side portion is exposed at the lower end side of the left and right side plates of the main body. Formed,
The lacking portion has a flat upper edge, and a front end edge is obliquely absent toward the front, and the height dimension of the lacking portion in the portion where the upper edge is flat is the packaging. Within the range of 1/10 to 1/3 of the height dimension of the box,
A break line for detecting mischief is formed from the intersecting position of the flat upper edge of the lacking portion of the left and right side plates of the lid and the oblique front end edge to the obliquely upward direction from the horizontal direction. is there.

  Therefore, according to such a configuration, the lid body is pushed from the upper side to the rear side by pressing the back side portion of the left and right side plates of the main body exposed by the lack of the lower side of the left and right side plates of the lid. The lid body can be separated from the main body and opened by removing it so as to rotate toward the front. At this time, the main body whose upper part is opened can be used as it is as a display case for sale. It is possible to display for sale without changing the. Here, when a finger is inserted between the left and right side plates of the lid and the left and right side plates of the main body from the vicinity of the oblique front edge side in the absence of the left and right side plates of the lid, A break line formed obliquely upward from the lacking portion is broken, and it can be recognized that the break was caused by such breakage.

It is an expanded top view of the main body of a packaging box, Comprising: It is a top view of the state expand | deployed so that the outer surface side might become an upper surface. It is the expansion | deployment top view of the cover body combined so that it may cover a main body, Comprising: It is the top view expand | deployed so that an outer surface may become an upper surface. It is a disassembled perspective view of the packaging box. It is the external appearance perspective view seen from the front side of the packaging box. It is the external appearance perspective view seen from the back side of the packaging box. It is an external appearance perspective view which shows the operation | movement which removes a cover body and opens a main body. It is a side view of the state which assembled this packaging box.

  The present invention will be described below with reference to embodiments shown in the drawings. The packaging box of the present embodiment is a packaging box formed by combining the main body (body) 11 shown in FIG. 1 and the lid 50 shown in FIG. The form is as shown in FIG. 4 and FIG.

  First, the structure of the main body 11 will be described with reference to FIG. FIG. 1 shows the main body (body) 11 in an unfolded state, in which a corrugated cardboard sheet is formed by punching a cardboard sheet extending in the vertical direction. The main body 11 includes a left side plate 12, a front plate 13, a right side plate 14, and a back plate 15 in this order, and is connected to each other via a fold line 16 so as to be foldable. In addition, a joining plate 18 is connected to the left end of the left side plate 12 on the left side via a fold line 17. Then, the bonding plate 18 is coated with paste 22, and is bonded to the end portion of the back plate 15 by the paste 22 and assembled into a rectangular tube shape.

  As shown in FIG. 1, a joining piece 24 is connected to the upper portion of the left side plate 12 via a break line 23. Note that glue 25 is applied to the joining piece 24, and the joining piece 24 is joined to the inner surface of the left side plate 51 of the lid 50 by the glue 25.

  On the front plate 13 of the main body 11, a front separation plate 26 is partitioned by a broken line 27 on the upper side. The front separation plate 26 is coated with glue 28 on the outer surface, and the front separation plate 26 is joined to the front separation plate 65 on the front plate 52 of the lid 50 described later by this glue 28. .

  The rear end portions of the left and right side plates 12, 14 coincide with the height dimension of the packaging box, and a V-shaped recess 29 is formed on the upper edge near the rear end. A protrusion 30 is formed on the front end side continuously to the concave portion 29. The front end side of the protrusion 30 is a front end side inclined portion 31.

  Next, a slit-like opening 32 extending in the vertical direction is formed along a fold line 16 positioned between the right side plate 14 and the back plate 15 of the main body 11. In addition, a back separation plate 33 is connected to the back plate 15 having the slit-like opening 32 at the end thereof through a break line 34. The back separation plate 33 is coated with glue 35 on the outer surface.

  Next, the structure of the bottom portion of the main body 11 will be described. A bottom plate 40 is connected to the lower end side of the left side plate 12 via a fold line 39. A bottom plate 42 is connected to the bottom of the right side plate 14 via a fold line 41. A connecting flap 44 is connected to the bottom of the front plate 13 and the back plate 15 via a fold line 43. The connecting flap 44 has a slanted fold line 45 formed on one shoulder portion on the front end side thereof, and a paste 46 is applied to the back surface on the back side from the fold line 45. The glue 46 joins the connecting flaps 44 to the end portions of the adjacent bottom plates 40 and 42 to form a foldable bottom structure.

  Next, the configuration of the lid 50 that covers the top of the main body 11 will be described with reference to FIG. FIG. 2 shows the cover 50 in an unfolded state, and is configured by punching a cardboard whose step extends in the vertical direction. The lid 50 includes a left side plate 51, a front plate 52, a right side plate 53, and a back plate 54 in that order, and is connected to each other via a fold line 55 so as to be foldable. A joining plate 57 is connected to the right end of the lid 50 via a double fold line 56. Glue 58 is applied to the inner surface of the joining plate 57 and is connected to the left side plate 51 at the opposite end via such glue 58 so as to be assembled into a square cylinder.

  On the lower end side of the left and right side plates 51, 53 of the lid 50, a lacking portion 62 is formed closer to the rear end side. This lacking portion 62 is to expose the back side portion of the left and right side plates 12 and 14 of the main body 11 when the lid is opened. The lacking part 62 is an inclined part 63 whose front end side is inclined forward. A break line 64 for mischief detection is formed so as to extend obliquely upward from the horizontal direction from the crossing position of the horizontal and flat portion of the upper end of the lacking portion 62 and the inclined portion 63. The broken line 64 constitutes a tamper detection means that characterizes the present invention.

  A front separation plate 65 is connected to the front plate 52 of the lid 50 through a break line 66 so as to be breakable. An opening piece 68 is continuously provided at the upper end of the front separating plate 65 by a U-shaped cut 67. The root portion of the opening piece 68 is a fold line 76.

  Next, a connecting piece 70 is formed at the front end side portion of the right side plate 53 of the lid 50 so as to be surrounded by a break line 69. Note that the front end portion of the breaking line 69 coincides with the folding line 55. A semicircular opening 71 is formed on the side of the connecting piece 70. Further, a connecting piece 73 is formed on the upper surface of the back plate 54 of the lid 50 so as to be surrounded by the break line 72. A semicircular opening 74 is formed on the side of the connecting piece 73. Each of these connecting pieces 70 and 73 is used when a plurality of packaging boxes are connected side by side, and the connecting piece 70 is connected to a front end portion of adjacent packaging boxes adjacent to each other. Further, the connecting piece 73 on the back side is connected to the upper surface of the packaging box located on the rear side.

  Next, a cut 75 is formed in the lower end portion of the back plate 54 of the lid 50. This cut 75 is for forming a lacking portion that is continuous with the lacking portion 62 of the left and right side plates 51, 53. In particular, the notch 75 is used as a pivot for turning the lid 50 upward to open the packaging box (see FIG. 6).

  A lid plate 80 is connected to the upper portions of the left and right side plates 51 and 53 of the lid body 50 via a folding line 79 so as to be bendable. Further, an upper flap 82 is connected to the upper end portion of the front plate 52 and the upper end portion of the back plate 54 via folding lines 81, respectively. By combining the upper flap 82 and the lid plate 80, the upper opening of the lid 50 is closed (see FIGS. 4 and 5).

  Next, the assembly of the packaging box composed of the main body 11 and the lid 50 according to the above configuration will be described. First, the main body 11 sequentially folds the left side plate 12, the front plate 13, the right side plate 14, and the back plate 15 at the fold line 16 with the fold line 16, and folds the joining plate 18 with the fold line 17, The glue 22 applied to the surface of the joining plate 18 is glued to the end of the back plate 15. The bottom opening of the main body 11 is closed by overlapping the bottom plate 42 on the right side plate 14 side with the bottom plate 40 of the left side plate 12. At this time, a portion of the connecting flap 44 on both sides of the front end side with respect to the folding line 45 is glued to the side portions of the bottom plates 40 and 42 with glue 46 and connected. As a result, the main body 11 is assembled and the bottom opening is closed by the bottom plates 40 and 42. The assembled state is shown in FIG. As shown in FIG. 3, the main body 11 is in a state in which the upper opening is opened, and the contents 85 are stored in an aligned state therein.

  Next, the lid body 50 sequentially folds the left side plate 51, the front plate 52, the right side plate 53, and the back plate 54 of the corrugated cardboard shown in FIG. The provided joining plate 57 is glued to the end of the left side plate 51 with glue 58 and joined. As a result, it is assembled into a square cylinder. Thereafter, the upper flap 82 is folded inward at the folding line 81, and the lid plate 80 is folded by the folding line 79, thereby closing the upper opening (see FIGS. 3, 4, and 5).

  Here, the front separation plate 26 of the main body 11 is glued and joined to the front separation plate 65 of the front plate 52 of the lid 50 by glue 28. Further, the back separation plate 33 of the back plate 15 of the main body 11 is glued to the back plate 54 of the lid 50 by the glue 35. Further, the joining piece 24 of the main body 11 is glued to the inner surface of the left side plate 51 of the lid 50 by the glue 25.

  Actually, the cardboard constituting the main body 11 is overlapped on the cardboard constituting the lid 50, and the two are folded together.

  Next, the opening operation of such a packaging box will be described. As shown in FIG. 3, the contents 85 are stored in an aligned state through the upper opening of the main body 11. Then, the lid 50 is placed on the upper part of the main body 11 to close the upper opening of the main body 11. 4 and 5 show the appearance of the packaging box with the lid 50 placed on the top in this way.

  When opening, as shown in FIG. 6, the opening piece 68 surrounded by the U-shaped cut 67 on the upper end side of the front separation plate 65 formed on the front plate 52 of the lid 50 is indicated. Then push it into this packaging box. Then, the U-shaped cut 67 is broken, and the opening piece 68 is bent inwardly about the position of the folding line 76. In such a state, the front separating plate 65 is removed by the U-shaped cut 67 through the breaking line 66 as shown in FIG. Then, an opening for opening is formed in the front plate 52 of the lid 50 by the break line 66 and the U-shaped cut 67. Then, a finger is hooked on the U-shaped cut 67 portion of the opening to lift the front plate 52 of the lid 50 upward. Then, the lid 50 is rotated from the upper side to the rear side with the portion of the cut 75 on the rear side of the lid 50 as the center of rotation.

  In such an opening operation, the front separation plate 26 of the main body 11 joined to the inside of the front separation plate 65 of the lid 50 is broken at the breaking line 27 and joined to the lid 50 side. Is separated together with the front separation plate 65. Further, the back separation plate 33 of the back plate 15 of the main body 11 glued to the back plate 54 of the lid 50 is broken at a breaking line 34 and separated and removed together with the lid 50 while being joined to the lid 50 side. The

  When opened in this manner, the contents 85 are exposed in the main body 11 in an aligned state. Accordingly, it is possible to use the contents 85 as they are as a display case for sale with the contents 85 exposed, and it is not necessary to replace the contents 85 for display.

  During the opening operation as described above, in particular, the portions on the lower end sides of the left and right side plates 12 and 14 of the main body 11 that are exposed at the lower end sides of the left and right side plates 51 and 53 of the lid 50 and exposed by the lacking portion 62 on the back side. Can be pressed by hand. That is, the packaging box is held on the hand, the thumb is applied to the right side plate 14 of the main body 11, and the index finger, the middle finger, and the ring finger are applied to the left side plate 12. In this state, as shown in FIG. 6, the opening operation is reliably achieved by rotating the lid 50 from the upper side to the rear side as described above. Therefore, the missing part 62 of the left and right side plates 51 and 53 of the lid 50 has a structure necessary for the opening operation.

  As described above, the left and right side plates 51, 53 of the lid body 50 are indispensable in order to expose the back side portion of the lower left and right side plates 12, 14 of the main body 11, although this is essential. When such a lacking portion 62 is provided, a finger is pushed around the intersection between the lacking portion 62 and the inclined portion 63, and the left and right side plates 51, 53 of the lid 50 and the left and right side plates 12, 14 of the main body 11 are connected. There is a possibility that a finger may be inserted in the middle and the contents 85 may be removed. Therefore, here, in order to detect the above-mentioned mischief, a break line 64 for mischief detection is formed from the intersecting position of the missing portion 62 of the lid 50 and the inclined portion 63 obliquely upward from the horizontal direction. doing. When the finger is inserted between the left and right side plates 12 and 14 of the main body 11 and the left and right side plates 51 and 53 of the lid body 50 by such a tamper detection break line 64, the tamper detection break line 64 is obtained. Breaks to ensure that it is informed. In other words, since traces of mischief remain reliably, it becomes difficult to mischief, and in the event of mischief, the product can be discarded.

  Such a break detection line 64 for detecting mischief has an outer angle θ formed by the flat lacking portion 62 and the inclined portion 63 of the left and right side plates 51 and 53 of the lid 50 of 180 degrees or more, as shown in FIG. When the outer angle θ is equally divided into three, it is preferable that the angle range is 1/3 of the middle. In addition, the break line 64 for detecting mischief is such that the outer angle θ formed by the flat missing portions 62 and the inclined portions 63 of the left and right side plates 51 and 53 of the lid 50 is 180 degrees or more, and the outer angle θ is 3 etc. When divided, it is preferably formed so as to enter an intermediate angle range of 1/3 and to extend forward from the vertical direction. If the break line 64 for detecting tampering as described above is not formed on the left and right side plates 51, 53 of the lid 50, tampering detection is not performed reliably, and the guarantee function of the tampers is reduced.

  The dimension Y in the height direction of the missing portion 62 formed on the left and right side plates 51 and 53 of the lid 50 is such that Y is 1/10 to 1/3 of Z when the total height of the packaging box is Z. Within range. In other words, within the range of 1/10 to 1/3 of the total height Z in the height direction of the packaging box, the back side portions of the left and right side plates 12, 14 of the main body 11 are exposed. And it becomes easy to hold by hand when opening. In particular, if the height of the missing portion 62 is reduced, it becomes more difficult to tamper. If it is smaller than the lower limit of 1/10 to 1/3, it becomes difficult to hold down when opening. If it is larger than the upper limit value, it is easy to be tampered with.

  A cut 75 is preferably formed on the lower end side of the back plate 54 of the lid 50. The upper edge of the notch 75 forms the rotation center of the lid 50 when opened. If the position of the center of rotation is low, the lid 50 is difficult to rotate well toward the back side when opened, and therefore it is necessary to ensure a predetermined height value. The dimensional difference in the height direction between the notch 75 and the missing portion 62 is preferably in the range of 0.5 to 4 cm. If it is smaller than the lower limit of this range, the rotation for opening the lid 50 will be hindered. On the other hand, if it is larger than the upper limit of this range, the area of the lacking portion 62 becomes too large and is easily displaced.

  Next, the dimension A between the upper end of the protrusion 30 formed on the upper end side of the left and right side plates 12 and 14 of the main body 11 inside the lid 50 and the upper surface of the box is relative to the total height Z of the box. , And preferably within a range of 1/10 to 1/3. By reducing the size between the upper edge of the protrusion 30 at the upper end of the left and right side plates 12, 14 and the upper end of the box, it becomes difficult to insert a finger into the upper opening of the main body 11 beyond the protrusion 30. As a result, it becomes difficult to mischief, and the guarantee function of the tamper evidence is enhanced.

  Although the present invention has been described above with reference to the illustrated embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention. For example, various dimensions can be set as the aspect ratio of the main body 11 and the lid 50 of the packaging box and other various dimensions in the above-described embodiment according to the size and number of contents to be filled. The packaging box of the present invention can be widely applied to packaging boxes that can store various articles and can be used as they are as a display case for sale.

  The present invention can be widely used for a packaging box in which an upper part is opened and can be used as it is as a display case for sale as it is, and a lid having a side plate on the outer side when covered for distribution.

11 Body
12 left plate 13 front plate 14 right plate 15 back plate 16 fold line 17 fold line 18 joint plate 22 glue 23 break line 24 joint piece 25 glue 26 front separation plate 27 break line 28 glue 29 V-shaped recess 30 protrusion 31 Front end side inclined portion 32 Slit-shaped opening 33 Rear separation plate 34 Break line 35 Glue 39 Fold line 40 Bottom plate 41 Fold line 42 Bottom plate 43 Fold line 44 Connection flap 45 Fold line 46 Glue 50 Lid 51 Left side plate 52 Positive Face plate 53 Right side plate 54 Back plate 55 Bending line 56 Bending line (double)
57 Joint plate 58 Glue 62 Missing portion 63 Inclined portion 64 Break line for tampering detection 65 Front separation plate 66 Break line 67 U-shaped cut 68 Opening piece 69 Break line 70 Connection piece 71 Semicircular opening 72 Break line 73 Connection piece 74 Semicircular opening 75 Notch 76 Folding line 79 Folding line 80 Cover plate 81 Folding line 82 Upper flap 85 Contents

Claims (7)

A packaging box comprising a combination of a main body that is open as it is and becomes a display case for sale as it is, and a lid that is provided with side plates on each of the four sides of the outer side and whose upper portion is closed by a lid plate,
The front plate of the lid is provided with an opening separating plate surrounded by a break line,
The left and right side plates of the lid have a missing portion that is lacking over a predetermined length from the back side to the front side so that the back side portion is exposed at the lower end side of the left and right side plates of the main body. Formed,
The lacking portion has a flat upper edge, and a front end edge is obliquely absent toward the front, and the height dimension of the lacking portion in the portion where the upper edge is flat is the packaging. Within the range of 1/10 to 1/3 of the height dimension of the box,
A break line is formed obliquely upward from the horizontal direction from the intersecting position of the flat upper edge of the missing portion of the left and right side plates of the lid and the oblique front end edge ,
When the lid is removed and opened on the back plate of the lid, a notch whose upper end is a pivot center is formed from the bottom upward to a predetermined height, and the missing portions of the left and right side plates of the lid are formed. The flat upper edge of the packaging box is lower than the upper edge of the opening cut of the back plate of the lid .   2. The packaging box according to claim 1, wherein the exposed portion on the lower end side of the left and right side plates of the main body exposed by the lacking portion of the left and right side plates of the lid is a portion for pressing the main body during an opening operation. An outer angle formed by the flat upper edge of the lacking portion of the left and right side plates of the lid and the oblique front end edge is 180 degrees or more, and when the outer angle is divided into three equal to one third packaging box according to any one of claims wherein the break line to fall angular range is formed on the left and right side plates of the cover 1 or 2. An outer angle formed by the flat upper edge of the lacking portion of the left and right side plates of the lid and the oblique front end edge is 180 degrees or more, and when the outer angle is divided into three equal to one third The packaging box according to any one of claims 1 to 3 , wherein the break line is formed on the left and right side plates of the lid so as to enter the angular range of the lid and to extend further forward than in the vertical direction. 5. The part according to claim 3, wherein the upper flat part of the lacking part of the left and right side plates of the lid is 0.5 to 4 cm lower than the upper edge of the opening cut of the back side plate of the lid. Packaging box. The left and right side plates of the main body have a lower front end portion, and the front end side of the lower left and right side plates is a protrusion projecting upward to the extended position of the tampering detection breaking line. The packaging box according to any one of claims 1 to 5 , wherein the height of the protrusion is within a range of 2/3 to 9/10 of the total height of the packaging box. In a packaging box that is provided with a side plate on each of the four sides of the outer side and a lid that is closed by a lid plate on the main body that becomes the display case for sale with the upper portion opened as it is,
The lid is removed by opening the separating plate for opening formed by being surrounded by a break line on the front plate of the lid, and the lid is rotated to open the lid.
In addition, the left and right side plates of the main body are exposed at the time of opening, and the left and right side plates of the main body are exposed and pressed to the lower end sides of the left and right side plates of the lid from the back side to the front side. Form the
Forming a break line for detecting a shift from the intersection of the flat upper edge of the lacking portion and the oblique front end edge obliquely upward from the horizontal direction,
If a finger is inserted between the left and right side plates of the lid from one of the left and right side plates of the lid and the left and right side plates of the main body from the lack of the left and right side plates of the lid, the tampering detection breaking line is broken. A mischievous detection method for a packaging box that informs you of mischief.

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