JP6271187B2 - Packaging container - Google Patents

Description

  The present invention relates to a packaging container with an unauthorized opening prevention function that is configured so that a place other than an opening cannot be arbitrarily opened.

  Some packaging containers composed of blank plates are configured so that when opened by a normal opening method, the opening can be easily recognized from the outside.

  However, a higher sealing property is required for contents that require higher quality control and safety, such as packaging of medicines. That is, it has become necessary to cope with the case where the paste is melted by heat and arbitrarily opened by a method other than the normal opening method.

  Therefore, there is a packaging container with an unauthorized opening prevention function configured so that a place other than the opening cannot be arbitrarily opened (see, for example, Patent Document 1 and Patent Document 2).

  In Patent Document 1, an insertion piece and a slit are provided at a location where opening is prevented, so that it cannot be easily opened from the outside.

  In Patent Document 2, a protrusion is provided at a location adjacent to the portion with glue so that the cutter does not easily enter the portion with glue.

JP2008-056262 JP 2009-149355 A

  However, the conventional example has the following problems.

  In the configuration in which the insertion piece and the slit are provided so that they cannot be easily opened from the outside as in Patent Document 1, it is necessary to manually insert the insertion piece into the slit when creating the container. For this reason, there is a problem that it is not suitable for automatic packaging and it is difficult to produce a large amount of containers of the same quality.

  As in Patent Document 2, with a simple configuration in which protrusions are provided, there is an effect that the cutter is difficult to enter, but if the cutter enters, the glue portion can be easily cut, and the function to prevent tampering is insufficient. There was a problem.

  An object of the present invention is to provide a packaging container with an unauthorized opening prevention function having a configuration suitable for automatic packaging and a configuration in which unauthorized opening is difficult.

In order to achieve the above object, a first configuration of the present invention is a packaging container formed by folding a single blank plate, the container side forming a storage space for contents by folding continuous side plates. And a lid portion that covers the opening by inserting an insertion piece into the opening formed by being surrounded by the container side portion, and the inner surface of the container side portion has an end on the lid portion side. A lid formed on the plug-in piece of the lid portion is fixed to an inner piece that can be bent in the container inner direction in the vicinity of the opening by being connected to the inner surface so that the portion becomes a free end. A function of preventing unauthorized opening is added by locking the side locking portion and the inner locking portion formed at the end of the inner piece, and the inner locking portion is adjacent to the inner piece. Is an end of a locking hole formed in the inner adjacent piece, and the inner side And wherein the inner adjacent piece, and the engaging protrusion formed on said inner piece, and the other end portion of the hole for the locking is packaging container, characterized in that it is fixed by being locked.

  A second configuration is the packaging container according to the first configuration, wherein the inner locking portion is one end of a locking hole formed in the inner adjacent piece adjacent to the inner piece. .

  In the third configuration, the inner piece and the inner adjacent piece are fixed by locking a locking projection formed on the inner piece and the other end of the locking hole. It is a packaging container as described in 2nd structure characterized by these.

  A fourth configuration is a packaging container formed by folding a single blank plate, and is surrounded by a container side portion that folds a continuous side plate to form a storage space for contents, and the container side portion. A lid portion that covers the opening formed by the step, and the lid portion is a surface piece on which a claw-like portion that is located on the outermost surface of the lid portion and protrudes on the back surface is formed, and the surface piece It is illegal to form an intermediate piece in which a glued portion to be glued to and a through hole that penetrates the claw-like portion and a fixing piece that fixes the claw-like portion are overlapped. It is a packaging container to which a function for preventing opening is added.

  According to a fifth configuration, in the fourth configuration, the glued portion of the intermediate piece is formed so that the surface layer is easily peeled off when the surface piece and the intermediate piece are separated from each other. This is a packaging container.

  According to the first configuration, since the inner piece is bent inward, the insertion piece is easily inserted in the process of folding the blank plate, which is suitable for automatic packaging. Moreover, since an inner side latching part and a lid side latching part are automatically latched inside a packaging container, it becomes a structure where an unauthorized opening is difficult.

  According to the second configuration, since the locking hole is opened, the inner locking portion can be easily locked with the lid side locking portion.

  According to the third configuration, the inner piece and the inner adjacent piece can be fixed without being glued.

  According to the 4th structure, the surface piece, the fixed piece, and the intermediate piece which comprise a cover part are mutually adhere | attached. Thereby, when it fixes with an adhesive agent, it becomes difficult to remove an adhesive agent over the piece of a some layer. Therefore, it becomes a structure where unauthorized opening is difficult. Moreover, when superposing a plurality of pieces, no manual operation such as insertion is required. For this reason, it is a structure suitable for automatic packaging.

  According to the fifth configuration, since the surface layer of the glued portion is easily peeled, it can be easily understood that the peeling has occurred. Thereby, it becomes a structure where unauthorized opening is difficult.

The expanded view of the packaging container of 1st Embodiment. The perspective view explaining the state at the time of the assembly of the packaging container of 1st Embodiment. The perspective view explaining the state at the time of completion of the packaging container of 1st Embodiment. The expanded view of the packaging container of the modification of 1st Embodiment. The expanded view of the packaging container of 2nd Embodiment. The perspective view explaining the state of the assembly process of the packaging container of 2nd Embodiment. The perspective view explaining the state at the time of the assembly of the packaging container of 2nd Embodiment. The perspective view explaining the state at the time of completion of the packaging container of 2nd Embodiment. The expanded view of the packaging container of the modification of 2nd Embodiment. The expanded view of the packaging container of 3rd Embodiment. The perspective view explaining the state at the time of completion of the packaging container of 3rd Embodiment. The perspective view explaining the normal use state of the packaging container of 3rd Embodiment. The perspective view explaining the unauthorized opening prevention structure of the packaging container of 3rd Embodiment. The expanded view of the packaging container of the modification of 3rd Embodiment. The perspective view explaining the state at the time of completion of the packaging container of the modification of 3rd Embodiment. The perspective view explaining the normal use state of the packaging container of the modification of 3rd Embodiment. The perspective view explaining the unauthorized opening prevention structure of the packaging container of the modification of 3rd Embodiment.

[First Embodiment]
The packaging container of 1st Embodiment is demonstrated using a figure. FIG. 1 is a development view of the packaging container of the first embodiment. (A) is a development view of the surface viewed from the back side of the blank plate, that is, from the inside of the container, and (b) is a development view of the surface viewed from the surface of the blank plate, that is, from the outside side of the container. FIG. 2 is a perspective view illustrating a state when the packaging container of the first embodiment is assembled.

  The packaging container 1 is formed by folding one blank plate shown in FIG. As shown in FIG. 2, the packaging container 1 includes a container side part 10 that folds a continuous side plate to form a storage space for contents, and an opening A that is formed by being surrounded by the container side part 10. And a lid portion 20 that lids by inserting 22.

  Each part structure of the packaging container 1 is demonstrated using the expanded view of FIG. The container side portion 10 includes a left side plate 11, a front side plate 12, a right side plate 13, a back side plate 14, and a left inner side plate 15 that are continuously formed through folds. Further, an inner piece 16 connected to the left inner side plate 15 via the central connecting portion R, and a support piece 17 connected to the inner piece 16 and supporting the inner piece 16 at a portion facing the central connecting portion R. Have

  The lid portion 20 includes a top plate 21 and an insertion piece 22 that are continuously connected to the back side plate 14. The insertion piece 22 has an insertion surface 22a and a locking surface 22b on which the lid-side locking portion 22X is formed. When the insertion surface 22a and the locking surface 22b are folded, the lid-side engagement is performed. Stop part 22X protrudes. This is because the lid-side locking portion 22X is disposed in the vicinity of the fold, so that the lid-side locking portion 22X is formed when the fold between the insertion surface 22a and the locking surface 22b is folded. This is because bending force also acts on the cut. The insertion surface 22a and the locking surface 22b are glued and fixed to each other with an adhesive G.

  As shown in FIG. 1, a bottom portion 30 is connected to a position facing the lid portion 20 of the back side plate 14. The bottom 30 includes a bottom plate 31 and a bottom insertion piece 32. The bottom insertion piece 32 has a bottom insertion surface 32a and a bottom locking surface 32b on which a bottom locking portion 32X is formed. Since the bottom part 30 is also the same structure as the cover part 20, the bottom part latching | locking part 32X protrudes when the bottom part insertion surface 32a and the bottom part latching surface 32b are folded over.

  In the direction of the lid portion 20 of the right side plate 13 and the left inner side plate 15, lid side holding pieces 41 that hold both side ends of the insertion piece 22 are connected when the insertion piece 22 is inserted. In addition, in the direction of the bottom portion 30 of the right side plate 13 and the left inner side plate 15, when the bottom insertion piece 32 is inserted, bottom side holding pieces 51 that hold both side ends of the bottom insertion piece 32 are connected.

  The front side plate 12 is configured to be bonded to the insertion piece 22 and configured to be cut by the cutting line C, and to be cut to the cutting line C by being bonded to the bottom insertion piece 32. The bottom cut-out portion 12b is formed.

  The inner adjacent piece 16a is connected to the inner piece 16 on the lid portion 20 side, and the inner adjacent piece 16b is connected to the bottom portion 30 side. An inner locking portion 16X is formed on the inner adjacent piece 16a, and an inner locking portion 16Y is formed on the inner adjacent piece 16b. The inner locking portion 16X is formed when it is folded to the inner piece 16 side. At this time, the inner piece 16 has a protruding shape D at a position corresponding to the inner locking portion 16X, so The locking part 16X protrudes. Similarly, the protruding shape D is formed at the position of the inner piece 16 corresponding to the inner locking portion 16Y.

  Next, the characteristics when the packaging container 1 is assembled will be described with reference to FIGS. 2 and 3. FIG. 3 is a perspective view for explaining a state when the packaging container of the first embodiment is completed. The assembly work is performed by automatic packaging.

  First, in order to form the container side portion 10, the left side plate 11, the front side plate 12, the right side plate 13, the back side plate 14, the left inner side plate 15, the inner piece 16, and the support piece 17 are sequentially folded and fixed with the adhesive G. . Here, when the inner adjacent piece 16 a and the inner adjacent piece 16 b (see FIG. 1) adjacent to the inner piece 16 are folded, both are folded in a direction located between the front side plate 12 and the inner piece 16. Thereby, the container side part 10 as shown in FIG. 2 is formed.

  The inner piece 16 is fixed to the inner surface of the container side portion 10 by fixing the support piece 17 (see FIG. 1) with the adhesive G to the inner surface of the right side plate 13. At this time, since the support piece 17 fixes the central portion of the inner piece 16, the inner piece 16 lid side and bottom side end portions are free ends, and an arrow adjacent to the inner piece 16 in FIG. As shown in FIG. 3, the container is bent in the container inner direction in the vicinity of the opening A.

  Further, the inner locking portion 16X and the inner locking portion 16Y protrude inward due to the action of the protruding shape D. For this reason, the free end of the inner piece 16 and the front side plate 12 are in a separated state. Therefore, when the insertion piece 22 is folded and the top plate 21 is folded so as to be closed with respect to the container side portion 10 as shown in FIG. It becomes easy to get in naturally. Then, it becomes a structure suitable for automatic packaging in the process of forming the lid portion 20.

  As shown in FIG. 3, when the lid portion 20 is folded and folded in the closing direction with respect to the container side portion 10, the adhesive G and the insertion piece 22 inside the lid side cutout portion 12a are bonded and fixed. . Thereby, the lid part 20 is sealed with respect to the container side part 10. At the same time, the lid side locking portion 22X formed on the insertion piece 22 of the lid portion 20 and the inner side locking portion 16X formed on the end portion of the inner piece 16 are automatically connected to each other inside the packaging container 1. Will be locked. Thereby, the packaging container 1 is completed.

  Next, the state at the time of use of the packaging container 1 and the function which prevents unauthorized opening are demonstrated.

  During normal use, the lid side cutout portion 12a shown in FIG. 3 is pushed in. Then, the lid side cutout portion 12 a cut off from the front side plate 12 at the cutout line C is released together with the insertion piece 22 of the lid portion 20.

  On the other hand, unlike the normal use state, when an unauthorized opening without cutting the lid-side cutout portion 12a is attempted, it is conceivable that the adhesive portion G is melted and the lid portion 20 is opened. However, in this embodiment, since the lid side locking portion 22X and the inner side locking portion 16X are locked, the adhesive G between the lid side cutout portion 12a of the front side plate 12 and the insertion piece 22 is used. Even if it is intended to release the lid 20 by melting the lid, the lid 20 cannot be opened.

  As described above, according to the present embodiment, since the inner piece 16 is bent inward and separated from the front side plate 12, the insertion piece 22 is easily inserted in the process of folding the blank plate, and is suitable for automatic packaging. is there. Moreover, since the inner side latching | locking part 16X and the lid | cover side latching | locking part 22X are mutually latched automatically inside the packaging container 1, it becomes a structure where unauthorized opening is difficult. Thus, in the packaging container 1 of this embodiment, the function which prevents unauthorized opening is added.

  In addition, in 1st Embodiment, although the blank board like FIG. 1 was shown, the structure of a blank board is not restricted to FIG. For example, even a blank plate as shown in FIG. 4 has the same function. FIG. 4 is a development view of a modified example of the packaging container 2 of the first embodiment. (A) is a development view of the surface viewed from the back side of the blank plate, that is, from the inside of the container, and (b) is a development view of the surface viewed from the surface of the blank plate, that is, from the outside side of the container.

  For example, as shown in FIG. 4, the inner piece 16 may be fixed without providing the support piece 17 described above. In the configuration shown in FIG. 4, the front side plate 18 that overlaps the front side of the front side plate 12 is connected to the left side plate 11 to constitute the container side portion 10. The front plate 18 is formed with a notch 18a and a notch 18b. When the packaging container 2 is assembled, the lid-side cutout portion 12a and the bottom-side cutout portion 12b can be pressed from the surface of the container side portion 10.

[Second Embodiment]
The packaging container of 2nd Embodiment is demonstrated using a figure. FIG. 5 is a development view of the packaging container of the second embodiment. (A) is a development view of the surface viewed from the back side of the blank plate, that is, from the inside of the container, and (b) is a development view of the surface viewed from the surface of the blank plate, that is, from the outside side of the container. FIG. 6 is a perspective view for explaining the state of the assembly process of the packaging container of the second embodiment. FIG. 7 is a perspective view illustrating a state when the packaging container of the second embodiment is assembled. FIG. 8 is a perspective view for explaining a state when the packaging container of the second embodiment is completed. The same components as those of the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

  Each part structure of the packaging container 5 is demonstrated using the expanded view of FIG. The container side portion 10 includes a left side plate 11, a front side plate 12, a right side plate 13, a back side plate 14, and a left inner side plate 15 that are continuously formed through folds. Further, an inner piece 16 connected to the left inner side plate 15 via the central connecting portion R, and a support piece 17 connected to the inner piece 16 and supporting the inner piece 16 at a portion facing the central connecting portion R. Have

  The lid portion 20 includes a top plate 21 and an insertion piece 22 that are continuously connected to the back side plate 14.

  The insertion piece 22 has an insertion surface 22 a, a locking surface 22 b on which the lid side locking portion 22 </ b> X is formed, and a fixing piece 22 c that is fixed to the top plate 21. Then, when the fixing piece 22c is glued and fixed to the top plate 21 with the adhesive G, and the insertion surface 22a and the locking surface 22b are folded, the lid-side locking portion 22X protrudes. Details of the protrusion of the lid side locking portion 22X will be described later.

  As shown in FIG. 5, a bottom portion 30 is connected to a position facing the lid portion 20 of the back side plate 14. The bottom 30 includes a bottom plate 31 and a bottom insertion piece 32. The bottom insertion piece 32 has a bottom insertion surface 32a, a bottom locking surface 32b on which a bottom locking portion 32X is formed, and a fixed piece 32c fixed to the bottom plate 31. Since the bottom portion 30 has the same configuration as the lid portion 20, the bottom locking portion 32X has the fixing piece 32c glued and fixed to the bottom plate 31 with the adhesive G, and the bottom insertion surface 32a and the bottom locking surface 32b. And protrude when folded.

  The inner adjacent piece 16a is connected to the inner piece 16 on the lid portion 20 side, and the inner adjacent piece 16b is connected to the bottom portion 30 side. In the second embodiment, a locking hole 16H1 is formed in the inner adjacent piece 16a, and a locking hole 16H2 is formed in the inner adjacent piece 16b.

  As shown in FIG. 5, the end (one end) of the locking hole 16H1 on the inner piece 16 side becomes the inner locking portion 16X, and locks with the lid-side locking portion 22X. The end (other end) opposite to the inner piece 16 of the locking hole 16H1 is locked to the locking protrusion 16A1 formed on the inner piece 16. The end is formed with a cut S and a fold T so that the locking hole 16H1 of the inner adjacent piece 16a is easily locked to the locking projection 16A1. The locking projections 16A2 formed on the inner piece 16 and the locking holes 16H2 formed on the inner adjacent piece 16b have the same configuration as the locking projections 16A1 and the locking holes 16H1.

  Thus, in 2nd Embodiment, since the inner side adjacent piece 16a and the inner side adjacent piece 16b are fixed with respect to the inner side piece 16 by the latching, the adhesive agent G becomes unnecessary and a labor is also reduced. In addition, there are notches S and folds T, which temporarily expand the locking holes 16H1 and the locking holes 16H2. Then, the catch at the time of the locking operation can be reduced, and the locking protrusion 16A1 and the locking protrusion 16A2 can be easily locked with respect to the locking hole 16H1 and the locking hole 16H2.

  The characteristics when the packaging container 5 is assembled will be described with reference to FIGS.

  First, as shown in FIG. 6, the left side plate 11, the front side plate 12, the right side plate 13, the back side plate 14, the left inner side plate 15, the inner piece 16, and the support piece 17 are folded, and necessary gluing and fixing are performed.

  When the inner adjacent piece 16a and the inner adjacent piece 16b adjacent to the inner piece 16 are folded, the inner adjacent piece 16a and the inner adjacent piece 16b are both folded in the direction positioned between the front side plate 12 and the inner piece 16, and the locking protrusion 16A1 is locked. The hole 16H1, the locking projection 16A2, and the locking hole 16H2 are locked. Thereby, the container side part 10 as shown in FIG.6 (b) is formed, and the opening A in which the contents are inserted is formed.

  Next, a configuration when the opening A is closed by the lid 20 and the bottom 30 will be described with reference to FIGS. Since the lid part 20 and the bottom part 30 have the same configuration, the lid part 20 will be described as an example.

  As shown in FIG. 7, in order to form the insertion piece 22 of the cover part 20, it folds between the locking surface 22b and the fixed piece 22c. Here, the lid side locking portion 22X of the locking surface 22b is formed in the vicinity of the fold. For this reason, when folding the fold between the insertion surface 22a and the locking surface 22b (see FIG. 7), a bending force also acts on the notch in which the lid side locking portion 22X is formed, and the lid side locking portion 22X protrudes. Moreover, in 2nd Embodiment, as shown to FIG.7 (c) and (d), it fixes to the top plate 21 with the fixed piece 22c, and between the locking surface 22b and the fixed piece 22c is folded. It is set. For this reason, the lid side latching | locking part 22X can be made to protrude more according to the influence of the thickness of a blank board.

  The protruding lid-side locking portion 22X is locked to the inner locking portion 16X formed on the inner piece 16 when the lid portion 20 is closed in the direction of the arrow in FIG. 8).

  With the above-described configuration and assembly, the second embodiment is also a configuration suitable for automatic packaging, as described above, and is difficult to tamper with.

  In addition, in 2nd Embodiment, although the blank board like FIG. 5 was shown, the structure of a blank board is not restricted to FIG. For example, even a blank plate as shown in FIG. 9 has the same function. FIG. 9 is a development view of a modified example (packaging container 6) of the packaging container of the second embodiment. (A) is a development view of the surface viewed from the back side of the blank plate, that is, from the inside of the container, and (b) is a development view of the surface viewed from the surface of the blank plate, that is, from the outside side of the container. That is, as shown in FIG. 9, the inner piece 16 is not necessarily provided with the support piece 17 described above.

[Third Embodiment]
The packaging container of 3rd Embodiment is demonstrated using a figure. FIG. 10 is a development view of the packaging container of the third embodiment. (A) is a development view of the blank plate surface, that is, a surface viewed from the outside of the container, and (b) is a development view of the blank plate back surface, that is, a surface viewed from the inside of the container.

  The packaging container 3 is formed by folding one blank plate shown in FIG. As shown in FIG. 10, the packaging container 3 is formed by folding a continuous side plate to form a storage space for contents, and an opening A formed by being surrounded by the container side part 60 (see FIG. 12). And a lid portion 70 that covers the lid.

  Each part structure of the packaging container 3 is demonstrated using the expanded view of FIG. The container side part 60 includes a right side plate 61, a front side plate 62, a left side plate 63, a back side plate 64, and a glue margin plate 65 that are continuously formed through folds. The front side plate 62 is formed with a lid side cutout portion 62a configured to be cut along the cut line C and a bottom cutout portion 62b configured to be cut out along the cut line C. An adhesive G for fixing to the right side plate 61 is disposed on the adhesive margin plate 65.

  The lid 70 is formed by superimposing and fixing a surface piece 71, a fixing piece 72, and an intermediate piece 73. Next, the configuration of each piece of the lid 70 will be specifically described.

  The surface piece 71 is connected to the lid portion 70 side of the front side plate 62. The surface piece 71 is a member in which the top plate 71a that is the outermost surface and the ceiling plate 71b that is located on the back surface thereof are integrated with an adhesive G. The top plate 71a is formed with a projecting shape D projecting to the back surface side, and a claw-like portion 71X is formed at the position of the ceiling plate 71b corresponding to this.

  By having the protruding shape D, when the top plate 71a and the ceiling plate 71b are folded and overlapped, the protruding shape D presses the claw-shaped portion 71X, and the claw-shaped portion 71X reliably protrudes. Although two are formed in the present embodiment, the number of claw-like portions 71X is not limited to this.

  The fixed piece 72 is connected to the lid portion 70 side of the right side plate 61 and the left side plate 63. The fixing piece 72 is a piece for fixing the claw-like portion 71X of the surface piece 71 with the adhesive G1 (see FIG. 13), and fixes the claw-like portion 71X on the fixing portion 72a. The fixing portion 72a is a portion formed in the fixing piece 72 via a half cutting line Ch.

  Here, the half-cut line Ch is a line that is cut to the middle of the thickness of the piece so that only the surface of the piece is peeled off. For this reason, when the force to the surface side acts on the fixing portion 72 a, only the surface of the fixing portion 72 a is peeled off and separated from the fixing piece 72.

  The intermediate piece 73 is connected to the lid portion 70 side of the back side plate 64. In the intermediate piece 73, a glued portion 73a adhered to the surface piece 71 by the adhesive G and a through hole H that penetrates the claw-like portion 71X of the surface piece 71 are formed in a straight line. Although two are formed in the present embodiment, the number of the pasting portions 73a is not limited to this.

  The glued portion 73a is a region formed by forming a half cutting line Ch from the through hole H to the outside. Here, two half-cut lines Ch of this embodiment are formed so as to be separated from each other toward the outside. The reason why the two half cutting lines Ch are separated from each other as they go to the outside is that the glued portion 73a is peeled off from the through hole H side, so that the surface layer easily peels off along the half cutting line Ch until halfway. This is because it is easy to configure.

  Each half-cut line Ch is formed directly from the through hole H but does not reach the end of the intermediate piece 73. The reason why the half-cut line Ch does not reach the end is to have an effect that it can be easily recognized that the half-cut line Ch has reached the end.

  The bottom 80 is formed by fixing the surface piece 81, the fixed piece 82, and the intermediate piece 83 in an overlapping manner. Next, the configuration of each piece of the bottom portion 80 will be described. However, since the function is basically the same as that of the lid portion 70, the description of the function of the bottom portion 80 is omitted.

  The surface piece 81 is connected to the bottom 80 side of the front side plate 62. The surface piece 81 is a member in which a bottom plate 81a and a bottom inner surface plate 81b are integrated with an adhesive G. A protruding shape D is formed on the bottom plate 81a, and a claw-shaped portion 81X is formed on the bottom inner surface plate 81b. Although two are formed in the present embodiment, the number of the claw-shaped portions 81X is not limited to this.

  The fixed piece 82 is connected to the bottom 80 side of the right side plate 61 and the left side plate 63. The claw-like portion 81X is fixed on the fixing portion 82a. The fixing part 82a is formed in the fixing piece 82 via a half cutting line Ch.

  The intermediate piece 83 is connected to the bottom 80 side of the back side plate 64. The intermediate piece 83 is formed in a linear shape with the glued portion 83a and the through hole H adjacent to each other. Although two are formed in the present embodiment, the number of the pasting portions 83a is not limited to this.

  A state after the packaging container 3 is assembled will be described. FIG. 11 is a perspective view for explaining a state when the packaging container of the third embodiment is completed. As shown in FIG. 11A, the packaging container 3 is covered with a lid part 70 at the upper part of the container side part 60. As shown in FIG. 11B, the lid portion 70 is formed by superimposing a surface piece 71, a fixed piece 72, and an intermediate piece 73. Although omitted in the figure, a bottom 80 having the same configuration as the lid 70 is formed on the lower surface.

  The state of the lid 70 when the packaging container 3 is normally used will be described. FIG. 12 is a perspective view for explaining a normal use state of the packaging container of the third embodiment.

  At the time of normal use of the packaging container 3, first, as shown in FIG. 12A, when the lid side cutout portion 62a is pushed, the lid side cutout portion 62a is cut from the front side plate 62 along the cut line C. The surface piece 71 can be opened. Here, even if the surface piece 71 is opened, the claw-like portion 71 </ b> X is fixed to the fixed piece 72 through the through hole H of the intermediate piece 73. For this reason, if force is not applied, the surface piece 71 will not fully open and will remain in the state of Fig.12 (a).

  Next, when a force is applied to further open the surface piece 71, the fixing portion 72a of the fixing piece 72 to which the claw-like portion 71X is fixed peels along the half-cut line Ch. Then, as shown in FIG. 12B, the fixing portion 72 a is removed from the fixing piece 72 together with the intermediate piece 73. Thereby, the surface piece 71 can be completely opened, and the fixed piece 72 can also be opened. Thereby, the contents can be taken out of the packaging container 3.

  The structure of the cover part 70 which prevents unauthorized opening of the packaging container 3 is demonstrated. FIG. 13 is a perspective view for explaining a structure for preventing unauthorized opening of the packaging container of the third embodiment.

  As shown in FIG. 13 (a), the lid portion 70 of the packaging container 3 has a claw-like portion 71 </ b> X protruding to the back side of the surface piece 71 through the through hole H of the intermediate piece 73, and the fixing portion 72 a of the fixing piece 72. Fixed to. Here, the surface piece 71, the fixed piece 72, and the intermediate piece 73 are bonded to each other by a linear adhesive G <b> 1 including the pasted portion 73 a of the intermediate piece 73 and the through hole H.

  That is, the adhesive G1 adheres the surface piece 71 and the fixing piece 72 via the claw-like portion 71X, while adhering the surface piece 71 and the intermediate piece 73 at the adhesive margin between the two through holes H. In addition, the plurality of superposed pieces are bonded to each other.

  Then, if the cutter is inserted between the surface piece 71 and the intermediate piece 73 in order to scrape off the adhesive G1 illegally, the claw-like portion 71X disposed inside will interfere with the adhesive G1. It is not possible to separate the surface piece 71 and the intermediate piece 73 from each other.

  Further, as shown in FIG. 13B, when the surface piece 71 and the intermediate piece 73 are separated by applying force, the glued portion 73a that is easy to peel off from the intermediate piece 73 peels along the half-cut line Ch. Therefore, it can be easily understood that the peeling has occurred. Further, once the glued portion 73a is removed from the intermediate piece 73, a peeling mark remains, and it is further clarified that peeling has occurred.

  As described above, according to the present embodiment, the surface piece 71, the fixing piece 72, and the intermediate piece 73 constituting the lid portion 70 extend in a straight line including the glued portion 73 a and the through hole H of the intermediate piece 73. Are adhered to each other by the adhesive G1. Thereby, it becomes difficult for the adhesive G1 to remove the adhesive G1 over a plurality of layers. Therefore, it becomes a structure where unauthorized opening is difficult. Moreover, when superposing a plurality of pieces, no manual operation such as insertion is required. For this reason, it is a structure suitable for automatic packaging.

  Next, a modification of the third embodiment will be described. FIG. 14 is a development view of a packaging container according to a modification of the third embodiment. FIG. 15 is a perspective view for explaining a completed state of the packaging container according to the modification of the third embodiment. FIG. 16 is a perspective view for explaining a normal use state of a packaging container according to a modification of the third embodiment. FIG. 17 is a perspective view for explaining a structure for preventing unauthorized opening of a packaging container according to a modification of the third embodiment.

  As described above, in the third embodiment, there are two claw-shaped portions 71X, but the number of claw-shaped portions 71X is not limited to two. For example, a blank plate as shown in FIG. 14 can be assembled into a packaging container 4 with one claw-like portion 71X as shown in FIG. Also in the packaging container 4 which concerns on a modification, the basic function is the same as that of this embodiment. Members having the same functions as those of the packaging container 3 described above are denoted by the same reference numerals.

  In the modification, the claw-like portion 71X has one at the center. Correspondingly, the through hole H formed in the intermediate piece 73 is also formed in the center. Further, at least one of the two fixed pieces 72 is configured to be long. This is because, as shown in FIG. 17A, the fixing piece 72 also receives the adhesive G <b> 1 over the three pieces of the surface piece 71, the fixing piece 72, and the intermediate piece 73.

  In addition, if the adhesive G or the part to which the adhesive G1 is applied (for example, the claw-shaped part 71X, the fixing part 72a, the glued part 83a) is cut as necessary, the adhesive penetrates. Cheap.

  INDUSTRIAL APPLICABILITY The present invention can be used for a packaging container with an unauthorized opening preventing function configured so that a place other than the opening cannot be arbitrarily opened.

A: Opening, C: Cut line, Ch: Half-cut line, D: Protruding shape, G: Adhesive, G1: Adhesive, H ... Through hole, R ... Central connecting part, S ... Cut, T ... Fold, DESCRIPTION OF SYMBOLS 1 ... Packaging container, 2 ... Packaging container, 3 ... Packaging container, 4 ... Packaging container, 5 ... Packaging container, 6 ... Packaging container, 10 ... Container side, 11 ... Left side plate, 12 ... Front side plate, 12a ... Cover side Cutout portion, 12b ... Bottom cutout portion, 13 ... Right side plate, 14 ... Back side plate, 15 ... Left inner side plate, 16 ... Inner piece, 16A1 ... Locking projection, 16A2 ... Locking projection, 16H1 ... Locking hole, 16H2 ... Locking hole, 16X ... Inner locking part, 16Y ... Inner locking part, 16a ... Inner adjacent piece, 16b ... Inner adjacent piece, 17 ... Supporting piece, 18 ... Front plate, 18a ... Notch, 18b ... Notch 20 ... Lid, 21 ... Top plate, 22 ... Insertion piece, 22X ... Lid side latching part, 22a ... Insertion surface, 22b ... Engagement surface, 2c ... fixed piece, 30 ... bottom, 31 ... bottom plate, 32 ... bottom insert piece, 32X ... bottom lock portion, 32a ... bottom insert surface, 32b ... bottom lock surface, 32c ... fixed piece, 41 ... lid side Holding piece, 51 ... Bottom side holding piece, 60 ... Container side, 61 ... Right side plate, 62 ... Front side plate, 62a ... Lid side cutout part, 62b ... Bottom side cutout part, 63 ... Left side plate, 64 ... Back side plate, 65 ... glue plate, 70 ... lid, 71 ... surface piece, 71X ... claw-like part, 71a ... top plate, 71b ... ceiling plate, 72 ... fixed piece, 72a ... fixed part, 73 ... intermediate piece, 73a ... glue Attached part, 80 ... bottom part, 81 ... surface piece, 81X ... claw-like part, 81a ... bottom plate, 81b ... bottom inner surface plate, 82 ... fixed piece, 82a ... fixed part, 83 ... intermediate piece, 83a ... glue part

Claims (1)

A packaging container formed by folding a single blank board,
A container side part that folds a continuous side plate to form a storage space for contents,
A lid portion that covers the opening by inserting an insertion piece into the opening formed by being surrounded by the container side portion;
On the inner surface of the container side portion, an inner piece that can be bent in the container inner direction in the vicinity of the opening is fixed by being connected to the inner surface so that the end portion on the lid portion side becomes a free end. And
A function of preventing unauthorized opening is added by locking a lid side locking portion formed on the insertion piece of the lid portion and an inner locking portion formed on an end portion of the inner piece. It is,
The inner locking portion is one end of a locking hole formed in the inner adjacent piece adjacent to the inner piece,
The inner piece and the inner adjacent piece are fixed by locking a locking projection formed on the inner piece and the other end of the locking hole.
A packaging container characterized by that.

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