JP3183806U - Packaging container - Google Patents

Abstract

A packaging container capable of maintaining a tightly closed state is provided.
A lid portion 17 is continuously provided via a closing plate fold line 67 at a closing plate 21 provided continuously with a first opening edge portion and an edge portion facing the first opening edge portion of the closing plate 21. Insertion plate 22, locking portion 23 a connected to the edge of the insertion plate 22 opposite to the first fold line via a locking plate fold line 69, and extended from the locking portion 23 a to be locked. A latch plate having a latch holding portion 23b provided to be separable from the insertion plate 22 by a first cut line 72 projecting toward the insertion plate 22 with the plate fold line 69 or the latch portion 23a as a start point and an end point 23, and when the closed state is changed to the opened state, the free edge of the auxiliary plate 18 is located between the insertion plate 22 and the locking portion 23a of the locking plate 23, and the locking plate 23 The latch holding portion 23b of the container body 14 is in contact with the article 8 inside the container body 14, and the insertion plate 22 and the latch plate 23 are kept folded. To.
[Selection] Figure 2

Description

  The present invention relates to a packaging container. More specifically, the present invention relates to a packaging container having a function of preventing unauthorized opening and alteration of contents.

  2. Description of the Related Art Conventionally, a packaging container in which a lid is continuously provided at a mouth edge portion of an opening of a container body is known as a packaging container for products and the like. If the lid is easily opened, the product stored in the packaging container may accidentally spill out, or the product being displayed may be illegally removed from the packaging container. In addition, if the packaging container is illegally opened, foreign matter is mixed inside, and it is closed again, the purchaser may be unaware of this and may suffer damage. For this reason, the packaging container which made it difficult to open a cover part by providing an engaging piece in a cover part and making an engaging piece latch to a container main body from before is known (for example, refer to patent documents 1).

JP 2007-76684 A

  However, in the packaging container of Patent Document 1, the locking piece of the lid is formed in a direction in which the locking piece is easily removed from the container body when the lid is rotated in the opening direction. For this reason, the sealed state of the packaging container cannot be maintained firmly.

  The present invention has been made in view of the above problems. The objective of this invention is providing the container for packaging which can maintain a sealed state more firmly.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, in the first device, the container main body having an opening and accommodating an article from the opening;
A lid that is connected to the first lip of the opening, closes the opening in the closed state, and opens the opening in the opened state;
A packaging provided with a second mouth edge facing the first mouth edge and an auxiliary plate having a part that stands up with respect to the container body in a closed state and / or a part that overlaps the inner surface of the container body. A container for
The lid is
A closing plate connected to the first mouth edge;
An insertion plate connected to the edge of the closing plate facing the first mouth edge via a first fold line;
An engaging portion that is provided continuously through the second fold line to the edge portion that opposes the first fold line of the insertion plate, and extends from the engaging portion to the second fold line or the locking portion. A locking plate having a locking holding part that is separable from the insertion plate by a first cut line protruding toward the insertion plate as a start point and an end point, and
In the closed state,
A free edge of the auxiliary plate is inside the container body;
The insertion plate and the locking plate are folded at the second fold line, the locking holding part is separated from the insertion plate, and is inside the container body,
When changing from a closed state to an open state,
A free edge of the auxiliary plate is located between the insertion plate and the locking portion of the locking plate, and the locking holding portion of the locking plate contacts an article inside the container body And it is set as the packaging container characterized by hold | maintaining the state by which the said insertion plate and the said latching plate were folded.

The second device is the first device,
The auxiliary plate has an auxiliary front plate and an auxiliary back plate,
In the sealed state, the auxiliary back plate is erected with respect to the container main body, and the auxiliary front plate is overlapped with the auxiliary back plate.

In the third device, the first or second device,
The container body has a folding plate continuously provided at a third mouth edge adjacent to both ends of the second mouth edge,
The folding plate is in the vicinity of the third mouth edge, and has a protrusion on the edge on the first mouth edge side,
The lid portion has a hook-like cut line that starts from a side edge of the lid portion and protrudes to a free end side of the lid portion at a position corresponding to the protruding strip in the closed state. A packaging container characterized by

The fourth device is the third device,
The auxiliary plate has a second cutting line at a position opposite to the bowl-shaped cutting line in the closed state of the opening.

The fifth device is one of the first to fourth devices,
A packaging container having a first breaking line in the vicinity of the opening.

The sixth device is the fifth device,
A packaging container having a second breaking line for opening.

  According to the present invention, when the lid portion is changed from the closed state to the opened state, the auxiliary plate and the locking plate and the insertion plate are in the locked state, and the sealed state can be firmly maintained.

The top view of the expansion | deployment formation body 13 of the container 11 for packaging which concerns on embodiment of this invention. The perspective view of the state which assembled the container main body 14. FIG. The perspective view of the state which assembled the container 11 for packaging. Sectional drawing of the periphery of the opening part 15 in the 7-7 line | wire of FIG. Sectional drawing of the opening part 15 periphery of the state in which the latching plate 23 was located inside the container main body 14. FIG. Sectional drawing of the opening part 15 periphery of the assembled state. Sectional drawing which shows the latching state of the insertion board 22, the latching plate 23, and the auxiliary | assistant front plate 52. FIG. The simplified cross-sectional view showing the locking plate 23 and the moving state. The perspective view of the container 111 for packaging which concerns on another embodiment.

  Next, an embodiment of the invention will be described with reference to FIGS.

  A packaging container 11 according to the present embodiment is formed by assembling the development body 13 shown in FIG. 1 and is a packaging container that accommodates an article 8 such as food or medicine. The packaging container 11 is formed of cardboard such as paperboard or cardboard. In addition to cardboard, a plate-like member using a resin material may be used.

  As shown in FIGS. 1 and 2, the packaging container 11 has an opening 15 on one side of the container body 14 and a bottom 16 on the other side. A lid 17 is connected to the opening 15. When the assembly of the packaging container 11 is completed, the state in which the opening 15 is closed by the lid 17 is referred to as a sealed state, and the state in which the lid 17 is opened and the opening 15 is opened is referred to as an opened state. Moreover, in this embodiment, it has the auxiliary | assistant board 18 raised with respect to the container main body 14. FIG.

  Hereinafter, for ease of explanation, the side on which the opening 15 is formed is referred to as the upper side, and the side on which the bottom 16 is formed is referred to as the lower side. The upper side in FIG. 1 and the upper side in FIG. 2 are the upper side, and the opposite side is the lower side. Moreover, let the side where the cover part 17 is connected in the state which assembled the container main body 14 be a front side, and let the opposite side be a rear side. In addition, although the cross-sectional shape of the horizontal direction of the packaging container 11 of a present Example is a rectangle, square and another polygonal shape may be sufficient.

  The part which comprises the container 11 for packaging along the expansion | deployment formation body 13 shown in FIG. 1 is demonstrated. FIG. 1 shows the front surface of the packaging container 11 as the front side of the paper. First, the first side plate 31, the second side plate 32, the third side plate 33, and the fourth side plate 34 constitute the side portion of the container body 14. The first side plate 31 constitutes the front portion of the container body 14. The second side plate 32 constitutes the rear part of the container body 14. The third side plate 33 constitutes the left side portion of the container body 14. The fourth side plate 34 constitutes the right side portion of the container body 14. A third side plate 33 is connected to an edge portion (left edge portion in the drawing) on the left side of the first side plate 31 via a side plate fold line 61. The fourth side plate 34 is connected to the edge portion (the right edge portion in the drawing) on the right side of the first side plate 31 via the side plate fold line 62. A second side plate 32 is connected to the third side plate 33 via a side plate fold line 63. A mounting surface 35 is connected to the second side plate 32 via a mounting surface crease line 64. At the side of the container body 14, a second breaking line 92 for opening the container body 14 crosses the first side plate 31, the second side plate 32, the third side plate 33, the fourth side plate 34 and the mounting surface 35. Is formed.

  As shown in FIGS. 1 and 2, the opening 15 of the container body 14 is configured by the upper edge of the first side plate 31, the second side plate 32, the third side plate 33, and the fourth side plate 34. The upper edge of the first side plate 31 constitutes the first mouth edge of the opening 15. The lid portion 17 is continuously provided on the upper edge portion of the first side plate 31. The lid 17 will be described later. The upper edge of the second side plate 32 constitutes the second mouth edge of the opening 15. The auxiliary plate 18 is continuously provided on the upper edge portion of the second side plate 32. The auxiliary plate 18 will be described later. The upper edge of the third side plate 33 and the upper edge of the fourth side plate 34 constitute a third mouth edge of the opening 15. A folding plate 36 is connected to the upper edge of the third side plate 33 via a folding plate crease line 65. A folding plate 37 is connected to the upper edge of the fourth side plate 34 via a folding plate crease line 66. The folding plate 36 and the folding plate 37 have protrusions 38 in the vicinity of the third mouth edge and on the edge on the second mouth edge side.

  The bottom portion 16 of the container body 14 is mainly composed of a first bottom plate 41, a second bottom plate 42, a third bottom plate 43, and a fourth bottom plate 44. The first bottom plate 41 is connected to the first side plate 31 via a bottom plate fold line 81. The second bottom plate 42 is connected to the second side plate 32 via a bottom plate crease line 82. The third bottom plate 43 is connected to the third side plate 33 via a bottom plate crease line 83. The fourth bottom plate 44 is connected to the fourth side plate 34 via a bottom plate fold line 84. The bottom portion 16 is configured by combining the first bottom plate 41, the second bottom plate 42, the third bottom plate 43, and the fourth bottom plate 44 with the container body 14 having a cylindrical shape.

  The lid portion 17 is a portion that closes the opening 15 in the closed state and opens the opening 15 in the opened state. The lid portion 17 is mainly composed of a closing plate 21, an insertion plate 22, and a locking plate 23. The closing plate 21 is a portion that closes the opening 15 in the closed state. The closing plate 21 is connected to the upper edge of the first side plate 31, that is, the first opening edge, via a closing plate fold line 67 that is a first fold line. The insertion plate 22 is connected to an end edge of the closing plate 21 facing the closing plate crease line 67 via an insertion plate crease line 68 as a second fold line. The insertion plate 22 is a portion to be inserted inside the container body 14 in a state where the opening 15 is closed by the closing plate 21.

  A locking plate 23 is formed on the lid portion 17. The locking plate 23 is a portion that engages with a free edge of an auxiliary front plate 52 described later together with the insertion plate 22 to maintain the sealed state of the packaging container 11. The locking plate 23 has a locking part 23a and a locking holding part 23b. The locking portion 23 a is connected to the end edge of the insertion plate 22 facing the insertion plate fold line 68 via a locking plate fold line 69. In the present embodiment, the locking holding portion 23b is formed by a first cut line 72 that protrudes toward the insertion plate 22 with a locking plate fold line 69 serving as a second fold line as a starting point and an ending point. The latch holding part 23b is connected to the latch part 23a continuously without a fold line. The first cut line 72 may not have the start point and the end point on the locking plate fold line 69 as the second fold line, but may have the start point and the end point on the locking portion 23a.

  The lid portion 17 is located at a position corresponding to the protruding piece 38 of the folding plate 36 and the folding plate 37 in the closed state (see FIG. 3), starting from the side edge of the lid portion 17, and on the free end side of the lid portion 17. A saddle-like cut line 71 is formed to protrude in the direction of the line.

  The auxiliary plate 18 is a part that stands up with respect to the container main body 14 in the closed state at the second mouth edge portion facing the first mouth edge portion. The auxiliary plate 18 is mainly composed of an auxiliary back plate 51 and an auxiliary front plate 52. The auxiliary back plate 51 is connected to the second side plate 32 without a fold line. An auxiliary front plate 52 is connected to the auxiliary back plate 51 via an auxiliary front plate fold line 73. Attachment holes 54 are formed in the auxiliary back plate 51 and the auxiliary front plate 52 at positions symmetrical with respect to the auxiliary front plate fold line 73. In the closed state, the auxiliary back plate 51 stands up with respect to the container body 14. The auxiliary front plate 52 is a portion that engages with the locking portion 23 a of the locking plate 23 and the insertion plate 22 when the lid portion 17 is changed from the closed state to the opened state.

  Next, the case where the packaging container 11 is assembled will be described. 2 and 3, the first side plate 31, the second side plate 32, the third side plate 33, the fourth side plate 34, and the mounting surface 35 include a side plate crease line 61, a side plate crease line 62, a side plate crease line 63, and The container main body 14 is fixed in a cylindrical shape by folding the side surface of the container main body 14 into a cylindrical shape by folding it at the mounting surface crease line 64 and fixing the mounting surface 35 to the fourth side plate 34. The bottom portion 16 is configured by combining the first bottom plate 41, the second bottom plate 42, the third bottom plate 43, and the fourth bottom plate 44. The auxiliary front plate 52 of the auxiliary plate 18 is folded at an auxiliary front plate fold line 73 and overlapped with the inner surface of the auxiliary rear plate 51. In this state, the article 8 is accommodated in the container body 14.

  Subsequently, when the packaging container 11 is in a sealed state, the folding plate 36 and the folding plate 37 are bent to the opening 15 of the container body 14. The lid portion 17 folds the insertion plate 22 at an insertion plate fold line 68 as a first fold line. Furthermore, the lid portion 17 folds the locking plate 23 at a locking plate fold line 69 that is the second fold line. Then, the locking portion 23 a of the locking plate 23 is folded so as to overlap with the insertion plate 22 at the locking plate fold line 69. The locking holding portion 23b of the locking plate 23 is cut and raised from the insertion plate 22, and protrudes outward from the free edge side (locking plate fold line 69 side) of the insertion plate 22.

  The lid part 17 rotates the entire lid part 17 about the closing plate fold line 67 as a central axis so that the locking plate 23 and the auxiliary front plate 52 are in contact with each other. Then, as shown in FIG. 5 from the state shown in FIG. 4, the latch holding portion 23 b of the latch plate 23 is in the folded plate 36 and the folded plate 37 in a state where the entire latch plate 23 is in contact with the auxiliary front plate 52. And the auxiliary front plate 52 are inserted into the gap. Further, by inserting the locking plate 23 and the insertion plate 22 into the inside of the container main body 14, the packaging container 11 shown in FIG. 6 is in a closed state in which the opening 15 is closed by the closing plate 21.

  In the closed state, the closed state of the packaging container 11 is maintained by the engagement of the hook-shaped cutting line 71 of the lid portion 17 and the protruding strips 38 of the folding plate 36 and the folding plate 37. Furthermore, in the closed state, the closed state of the packaging container 11 is also maintained by the engagement of the protruding strips 38 of the folding plate 36 and the folding plate 37 with the second cut line 77 of the auxiliary plate 18.

  When taking out the article 8 from the packaging container 11, the inside of the container main body 14 is opened to take out the article 8 by breaking the second break line 92 formed on the side of the container main body 14. .

  In the present embodiment, when the lid portion 17 is opened to open the opening portion 15, the following occurs. That is, the auxiliary front plate overlapped on the inner side of the container body 14 of the second side plate 32 even if the entire lid portion 17 is rotated forward with the closing plate fold line 67 as the central axis to lift the closing plate 21. 52, the free end portion of the auxiliary front plate 52 engages with the engaging portion 23a of the insertion plate 22 and the engaging plate 23, which are substantially V-shaped in a side view, and the auxiliary end plate 52 has a free end edge. Contact with the line of sight 69 prevents the closing plate 21 from being lifted. Therefore, in order to open the lid part 17 and to open the opening part 15, it is necessary to break the lid part 17.

  Here, as shown in FIG. 7, the free end edge of the auxiliary front plate 52, which is the free end edge of the auxiliary plate 18, and the locked state of the locking portion 23 a of the locking plate 23 and the insertion plate 22 are released. In order to do so, the locking plate 23 must be displaced. That is, as shown in FIG. 8, in a state of engaging with the auxiliary front plate 52, the locking portion 23 a of the locking plate 23 is substantially V-shaped in a side view with the insertion plate 22.

  The unscheduled opening is made by forcibly pulling up the closing plate 21 and is bent from the state of the locking portion 23a and the insertion plate 22 of the substantially V-shaped locking plate 23 in a side view shown in FIG. The front state, that is, the insertion plate 22 in which the locking plate 23 is folded back and the locking plate 23 are substantially in the same plane, and is substantially I-shaped in a side view, and the locked state is released (see FIG. 8c). .

  Here, as shown in FIG. 7, the gap width α1 in the front-rear direction formed by the container body 14 and the housed article 8 is such that the free edge of the locking portion 23a of the locking plate 23 from the locking plate fold line 69. 8b, the edge of the locking plate 23 rotates around the locking plate crease line 69 as shown in FIG. 8b, and the locus of the edge draws an arc. It is bent back into a substantially I shape. That is, the condition under which the locking plate 23 is bent back is a relationship of α1 ≧ α2.

  However, in this embodiment, since the locking plate 23 has the locking holding portion 23b, the free edge of the locking plate 23 rotates about the locking plate fold line 69 as the center axis, and the insertion plate 22 If the locking plate 23 approaches the substantially I shape, the free end edge of the locking holding portion 23b simultaneously draws an arc in the direction opposite to the free end edge of the locking portion 23a, and the insertion plate 22 It is returned to the opening inside.

  Therefore, even if the gap width α1 is equal to or longer than the length of the free edge of the locking portion 23a from the locking plate fold line 69, the clearance width α1 extends from the free edge of the locking portion 23a to the locking holding portion 23b. If the length to the free edge is less than α3, the latch holding portion 23b comes into contact with the article 8. Therefore, the locking portion 23a and the insertion plate 22 are prevented from changing from a substantially V shape to a substantially I shape, and the engagement by the free edges of the locking portion 23a, the insertion plate 22 and the auxiliary front plate 52 is prevented. The stop state becomes stronger and the lid portion 17 is difficult to open.

  Therefore, if the cover part 17 is forcibly opened, the cover part 17 is damaged. As another embodiment, as shown in FIG. 9, by providing a first break line 91 on the insertion plate fold line 68 of the lid portion 17, the lid portion 17 is forcibly opened to open the opening portion 15. Then, pressure is applied to the first break line 91 and breaks.

  According to the packaging container 11 according to the present embodiment described above, the lid portion 17 includes the closing plate 21 connected to the first opening edge portion, and the edge portion facing the first opening edge portion of the closing plate 21. And the second fold line (locking plate fold line) at the edge of the insertion plate 22 facing the first fold line. 69) and a first cut line that extends from the locking portion 23a and protrudes toward the insertion plate 22 with the locking plate fold line 69 or the locking portion 23a as a starting point and an ending point. 72, and a retaining plate 23 having a retaining member 23b that is separable from the insertion plate 22 by a 72, and the free edge of the auxiliary plate 18 is inside the container body 14 in the closed state. The insertion plate 22 and the locking plate 23 are folded at the locking plate fold line 69, and the locking holding portion 23 b is separated from the insertion plate 22. When the inside of the container body 14 is changed from the closed state to the opened state, the free edge of the auxiliary plate 18 is located between the insertion plate 22 and the locking portion 23a of the locking plate 23, and The latch holding portion 23b of the latch plate 23 comes into contact with the article 8 inside the container main body 14 and holds the inserted plate 22 and the latch plate 23 in a folded state.

  For this reason, when the lid portion 17 is rotated in order to change from the closed state to the opened state, the free edge of the auxiliary plate 18 is located between the insertion plate 22 and the locking portion 23 a of the locking plate 23. Thus, the insertion plate 22 and the locking plate 23 are locked at the free edge of the auxiliary plate 18. Therefore, the closed state of the opening 15 by the lid portion 17 can be maintained. Furthermore, since the latch holding part 23b of the latch plate 23 is in contact with the article 8 inside the container main body 14, the inserted plate 22 and the latch plate 23 can be held in a folded state, which is strong. In addition, the closed state of the opening 15 by the lid portion 17 can be maintained. Therefore, it is possible to prevent tampering such as mixing foreign substances or replacing the article 8. Moreover, since the cover part 17 can block | close the opening part 15 by making the latching plate 23 into the container main body inside with the folding insertion board 22, the operation | work which accommodates articles | goods does not become complicated.

  The auxiliary plate 18 includes an auxiliary front plate 52 and an auxiliary back plate 51. In the closed state, the auxiliary back plate 51 is erected with respect to the container body 14, and the auxiliary front plate 52 is connected to the auxiliary back plate 51. Overlaid. For this reason, in the auxiliary plate 18 provided continuously with the first edge portion, the auxiliary back plate 51 is in a standing state with respect to the container main body 14, so that the auxiliary front plate 52 that is overlapped with the auxiliary back plate 51 is also the first. It is located outside the one mouth edge. Therefore, since the auxiliary plate 18 protrudes from the first edge of the opening 15 to the outside of the container main body 14, a suspended portion (attachment hole) is attached to the auxiliary back plate 51 and / or the auxiliary front plate 52 that is the protruding portion. 54) and advertising functions by printing or the like can be added. In addition, the auxiliary plate 18 includes an auxiliary front plate 52 that is superimposed on the inner surface of the container body 14 in the closed state. For this reason, the auxiliary | assistant board 18 can maintain the state stood with respect to the container main body 14, and the auxiliary | assistant board 18 becomes difficult to bend.

  The container body 14 is provided with folding plates 36 and 37 connected to the third mouth edge adjacent to both ends of the second mouth edge, the folding plates 36 and 37 being in the vicinity of the third mouth edge, The edge portion on the one edge portion side has the protruding strips 38 and 38, and the lid portion 17 starts from the side edge of the lid portion 17 at a position corresponding to the protruding strips 38 and 38 in the closed state. And ridges 71 and 71 projecting toward the free end of the lid portion 17. For this reason, a sealed state can be maintained more firmly.

  The auxiliary plate 18 has second cut lines 77 and 77 at positions facing the hook-shaped cut lines 71 and 71 in the closed state of the opening 15. For this reason, a sealed state can be maintained more firmly.

  The packaging container 111 has a first break line 91 in the vicinity of the opening 15. For this reason, if it is going to make the closed state of the opening part 15 into an open state, the 1st broken line 91 will fracture | rupture and the fact that the opening part 15 was opened will become clear.

  The packaging container 11 has a second break line 92 for opening. Therefore, by having the second break line 92 for opening, a legitimate opener such as a purchaser breaks the second break line 92 for opening without breaking the first break line 91. It can be opened easily. In addition, after the second break line 92 is broken, the fact that it is opened becomes clear. Therefore, it is possible to prevent tampering of articles in the packaging container 11.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, Furthermore, various changes are possible.

  In the present embodiment, as shown in FIG. 2, the auxiliary plate 18 is only the auxiliary front plate 52, and the auxiliary plate 18 is not raised from the container main body 14, and the auxiliary front plate 52 is attached to the container main body 14 in the closed state. You may make it overlap on an inner surface. In this case, the auxiliary plate 18 is not exposed to the outside of the packaging container 11, and the appearance is good.

  Moreover, in this embodiment, in order to maintain the sealed state of the packaging container 11, the strips 38 of the folding plate 36 and the folding plate 37, the hook-shaped cutting line 71 of the lid portion 17, and the second cutting line of the auxiliary plate 18. 77 is provided, but it is not necessary to provide all of them, and they may be selected and formed as appropriate.

  Moreover, in another embodiment, although the 1st fracture line 91 was formed on the insertion board crease line 68 so that the scissors-like cut line 71 * 71 may be tied, in addition to this 1st fracture line 91, as shown in FIG. In addition, the first break lines 191 and 191 may be formed on the closing plate 21. In this case, if the locking state between the locking plate 23 and the insertion plate 22 and the free end edge of the auxiliary front plate 52 is released to make it open, the first break lines 91 and 191 are broken and closed. Since the plate 21 is torn, the fact that it has been opened becomes clear.

8 Article 11 Packaging Container 14 Container Body 15 Opening 17 Lid 18 Auxiliary Plate 21 Closure Plate 22 Insertion Plate 23 Locking Plate 23a Locking Portion 23b Locking Holding Portion 36 Folding Plate 37 Folding Plate 38 Projection Strip 51 Auxiliary Back plate 52 Auxiliary front plate 54 Mounting hole 55 Locked portion 67 Closure plate fold line (first fold line)
68 Insert plate fold line 69 Lock plate fold line (second fold line)
71 Wavy cut line 72 First cut line 77 Second cut line 91 First break line 92 Second break line 111 Packaging container 191 Break line

Claims (6)

A container body that has an opening and accommodates articles from the opening;
A lid that is connected to the first lip of the opening, closes the opening in the closed state, and opens the opening in the opened state;
A packaging provided with a second mouth edge facing the first mouth edge and an auxiliary plate having a part that stands up with respect to the container body in a closed state and / or a part that overlaps the inner surface of the container body. A container for
The lid is
A closing plate connected to the first mouth edge;
An insertion plate connected to the edge of the closing plate facing the first mouth edge via a first fold line;
An engaging portion that is provided continuously through the second fold line to the edge portion that opposes the first fold line of the insertion plate, and extends from the engaging portion to the second fold line or the locking portion. A locking plate having a locking holding part that is separable from the insertion plate by a first cut line protruding toward the insertion plate as a start point and an end point, and
In the closed state,
A free edge of the auxiliary plate is inside the container body;
The insertion plate and the locking plate are folded at the second fold line, the locking holding part is separated from the insertion plate, and is inside the container body,
When changing from a closed state to an open state,
A free edge of the auxiliary plate is located between the insertion plate and the locking portion of the locking plate, and the locking holding portion of the locking plate contacts an article inside the container body A packaging container, wherein the insertion plate and the locking plate are held in a folded state. The packaging container according to claim 1,
The auxiliary plate has an auxiliary front plate and an auxiliary back plate,
The packaging container, wherein the auxiliary back plate is erected with respect to the container body in the closed state, and the auxiliary front plate is overlapped with the auxiliary back plate. The packaging container according to claim 1 or 2,
The container body has a folding plate continuously provided at a third mouth edge adjacent to both ends of the second mouth edge,
The folding plate is in the vicinity of the third mouth edge, and has a protrusion on the edge on the first mouth edge side,
The lid portion has a hook-like cut line that starts from a side edge of the lid portion and protrudes to a free end side of the lid portion at a position corresponding to the protruding strip in the closed state. Packaging container characterized by. A packaging container according to claim 3,
The auxiliary container has a second cutting line at a position opposite to the bowl-shaped cutting line in the closed state of the opening. A packaging container according to any one of claims 1 to 4,
A packaging container having a first breaking line in the vicinity of the opening. A packaging container according to claim 5,
A packaging container having a second breaking line for opening.

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