Packaging containers

Abstract

To provide a packaging box allowed to prevent a closure portion shutting up an opening of an accommodation part from readily opening.SOLUTION: A packaging container according to the present invention comprises backing paper having first and second surfaces and an accommodation part fixed on the first surface and for receiving an article. The accommodation part comprises a body portion formed in a tubular form and a closure portion shutting up one end of the body portion, in which the body portion has a first sidewall portion extending from the backing paper, a second sidewall portion opposite to the first sidewall portion, and a margin for pasting that is connected to the second sidewall portion and adhered to the first surface of the backing paper in an opposite position to the first sidewall portion relative to the second sidewall portion. The closure portion has a closure flap connected to any one of the first and second sidewall portions and extending toward the other of the first and second sidewall portions and an insertion flap that is connected to a tip of the closure flap and can be inserted into the body portion.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a packaging container.

Background Art

[0002] There is known a packaging container that can be displayed in a presentable state in a store or the like. Patent Document 1 discloses an example of the above packaging container. The packaging container of Patent Document 1 includes a display surface portion and a case body (accommodating portion) for accommodating a product. The case body is composed of a first side plate, a back plate, a second side plate, an adhesive piece, a bottom lid portion, and an upper lid portion. The adhesive piece is adhered to the display surface portion in a state of being bent outward with respect to the second side plate surface.

Prior Art Documents

Patent Documents

[0003] [[ID=...]] [[ID=...]]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] However, the packaging container of Patent Document 1 has a problem that the upper lid portion is likely to open when it receives an impact.

[0005] The present invention has been made to solve the above problems, and an object thereof is to provide a packaging container capable of suppressing the easy opening of a closing portion that closes an opening of an accommodating portion.

Means for Solving the Problems

[0006] Note: Some of the consecutive tags from ID=18 to ID=22 were replaced with "..." as they were not provided in the original text for translation. If there is a specific requirement for these tags, please let me know and I can adjust the translation accordingly.The packaging container according to the present invention comprises a cardboard base having a first surface and a second surface, and a storage section fixed to the first surface for storing articles, wherein the storage section comprises a cylindrical body and a closing section that closes a part of the body, wherein the body comprises a first side wall extending from the cardboard base, a second wall opposite to the first side wall, and an adhesive portion connected to the second wall and adhered to the first surface of the cardboard base on the side opposite to the first side wall relative to the second side wall, wherein the closing section comprises a closing flap connected to either the first side wall or the second side wall and extending to the other side of either the first side wall or the second side wall, and an insertable flap connected to the tip of the closing flap and insertable into the inside of the body.

[0007] The main body portion has a front wall portion facing the backing paper, In the above-described packaging container, the first distance from the first side wall to the second side wall can be made longer than the second distance from the front wall to the backing paper.

[0008] In the above-described packaging container, the closing flap can be configured to be connected to the second side wall and to extend toward the first side wall.

[0009] In the above-described packaging container, the second side wall portion can be positioned to the right of the first surface of the cardboard backing with the closing portion facing upwards.

[0010] In the above-described packaging container, the closing flap may be provided with a break line for dividing the closing flap in a direction intersecting the direction from the first side wall to the second side wall, and the break line may be configured to curve so as it approaches the backing paper, it approaches the adhesive portion. [Effects of the Invention]

[0011] According to the packaging box of the present invention, it is possible to prevent the closing flap that seals the opening of the storage compartment from easily opening. [Brief explanation of the drawing]

[0012] [Figure 1] This is a front view of the packaging container according to the embodiment, as seen from the surface of the cardboard backing. [Figure 2] This is a perspective view of the packaging container according to the embodiment, as seen from the back of the cardboard backing. [Figure 3] Figure 1 is an unfolded view of the packaging container. [Figure 4] This is a perspective view showing the assembly of a packaging container. [Figure 5] This is a plan view showing the assembly of the second closing section of the packaging container. [Figure 6] This is a plan view showing the assembly of the first closing section of the packaging container. [Figure 7] This is a plan view showing how to open the first closed section of a packaging container. [Figure 8] This is an exploded view of the packaging container related to the comparative example. [Figure 9] This is a plan view showing the movement of the insertion flap of the packaging container of the comparative example. [Figure 10] This is a front view of the article to be contained in the packaging container. [Figure 11] This is a plan view of a packaging box containing a packaging container for drop testing. [Modes for carrying out the invention]

[0013] <1. Overview of Packaging Boxes> The packaging box according to the embodiment will be described below with reference to the drawings. Figure 1 is a front view of the packaging box as seen from the front side of the cardboard backing. Figure 2 is a perspective view of the packaging container as seen from the back side of the cardboard backing. Figure 3 is an unfolded view of the packaging box. In the following, when describing the configuration shown in Figure 1, the description will follow the direction shown in Figure 1. When describing the configuration shown in Figure 2, the description will follow the direction shown in Figure 2.

[0014] As shown in FIGS. 1 and 2, the packaging box according to this embodiment includes a rectangular cardboard 1 having a front surface (second surface) and a back surface (first surface), and a housing portion 2 fixed to the back surface of the cardboard 1 for housing a product (article). The material forming this packaging box is not particularly limited, and for example, it can be formed of paper, resin material, or the like.

[0015] The housing portion 2 is formed in a rectangular parallelepiped shape and is fixed to the lower left of the back surface of the cardboard 1. More specifically, the housing portion 2 includes a main body portion 3 formed in a square tube shape with a rectangular first opening and a second opening formed at the top and bottom respectively, a first closing portion 4 for closing the first opening, and a second closing portion 5 for closing the second opening. In the first opening and the second opening, the length in the left-right direction is longer than the length in the front-back direction. The first closing portion 4 and the second closing portion 5 are also formed in accordance with the shapes of the first opening and the second opening.

[0016] As shown in FIG. 3, the main body portion 3 includes a first side wall portion 31, a front wall portion 32, a second side wall portion 33, and a pasting margin portion 34. The first side wall portion 31 is a plate-like member that is foldably connected to the edge of the back surface of the cardboard 1. The front wall portion 32 is a plate-like member that is foldably connected to the right edge portion (the edge opposite to the cardboard 1) of the first side wall portion 31. The second side wall portion 33 is a plate-like member that is foldably connected to the right edge portion (the edge opposite to the first side wall portion 31) of the front wall portion 32. The pasting margin portion 34 is a plate-like member that is foldably connected to the right edge portion (the edge opposite to the front wall portion 32) of the second side wall portion 33. A product is to be housed in the space having a rectangular cross-section surrounded by the first side wall portion 31, the front wall portion 32, the second side wall portion 33, and the cardboard 1. The pasting margin portion 34 is folded outward toward the outside of the space surrounded by the first side wall portion 31, the front wall portion 32, the second side wall portion 33, and the cardboard 1. The pasting margin portion 34 is adhered to the back surface of the cardboard 1 with an adhesive on the side opposite to the first side wall portion 31 with respect to the second side wall portion 33.

[0017] The vertical length of the main body portion 3 is slightly longer than half of the vertical length of the mount 1. The horizontal length of the main body portion 3 is approximately half of the horizontal length of the mount 1. Also, the lower ends of the first side wall portion 31, the front wall portion 32, and the second side wall portion 33 coincide with the lower end of the mount 1.

[0018] As shown in FIG. 3, the first closing portion 4 includes a horizontal flap 41, a support flap 42, and a closing flap 43. The horizontal flap 41 is foldably connected to the upper end of the first side wall portion 31. The support flap 42 is foldably connected to the upper end of the front wall portion 32. The closing flap 43 is foldably connected to the upper end of the second side wall portion 33.

[0019] The horizontal flap 41 is formed in a rectangular shape. The protruding length of the horizontal flap 41 from the first side wall portion 31 is about half the length of the front wall portion 32. In the horizontal flap 41, a cut 411 is formed at the center of the connection portion with the first side wall portion 31. The closing flap 43 is formed in a rectangular shape so as to cover the entire first opening of the main body portion 3. A plug-in flap 44 is foldably connected to the tip of the closing flap 43. The width of the plug-in flap 44 is narrower than the width of the tip of the closing flap 43. The tip of the plug-in flap 44 is formed in a triangular shape. Cuts 441 are formed on both sides of the base end portion (connection portion with the closing flap 43) of the plug-in flap 44. The plug-in flap 44 can be inserted into the cut 411 of the horizontal flap 41. When the plug-in flap 44 is inserted into the cut 411 of the horizontal flap 41, the cut 441 of the plug-in flap 44 engages with the cut 411 of the horizontal flap 41 to form an anti-disengagement structure.

[0020] As shown in Figures 2 and 3, the closing flap 43 has a projection 431 that can be grasped with a finger near the center of the side edge on the front wall portion 32 side. A convex arc-shaped break line 432 is formed on the left side of Figure 2 (the side on the first side wall portion 31 side) of the projection 431, extending toward the backing paper 1 side. The support flap 42 is formed in a rectangular shape that covers almost the entire first opening. However, an arc-shaped recess 421 is formed at the leading edge of the support flap 42 on the backing paper 1 side.

[0021] As shown in Figure 3, the second closing section 5 comprises a first horizontal flap 51, a second horizontal flap 52, a first closing flap 53, and a second closing flap 54. The first horizontal flap 51 is foldably connected to the lower end of the first side wall 31. The second horizontal flap 52 is foldably connected to the lower end of the second side wall 33. The first closing flap 53 is foldably connected to the lower end of the front wall 32. The second closing flap 54 is foldably connected to the lower end of the backing paper 1.

[0022] The first lateral flap 51 and the second lateral flap 52 have a symmetrical shape. The first lateral flap 51 is foldably connected to the first side wall 31. The first lateral flap 51 has a trapezoidal flap body 511 with a hypotenuse on only one side, and a rectangular projection 512 connected to the short side of the flap body 511. The flap body 511 and the projection 512 are integrally formed. The second lateral flap 52 is foldably connected to the second side wall 33. The second lateral flap 52 has a trapezoidal flap body 521 with a hypotenuse on only one side, and a rectangular projection 522 connected to the short side of the flap body 521. The flap body 521 and the projection 522 are integrally formed. The first closing flap 53 has a trapezoidal flap body 531 that is foldably connected to the front wall portion 32, and a rectangular projection 532 connected to the short side of the flap body 531. The flap body 531 and the projection 532 are integrally formed. The second closing flap 54 has a rectangular flap body 541 that is foldably connected to the backing paper 1, and a pair of rectangular projections 542 that protrude at intervals from both sides of the tip of the flap body 541. The flap body 541 and the projections 542 are integrally formed.

[0023] The front of the cardboard backing 1 displays the product name and other information, while the back displays product information such as usage instructions and ingredients. When the packaging box of this embodiment is displayed in a store, the front of the cardboard backing 1 faces the customer. A rectangular through-hole 11 is formed on the front of the cardboard backing 1 at a position corresponding to the storage section 2. The inside of the storage section 2 can be seen from the front side through the through-hole 11. In other words, a part of the product stored in the storage section 2 can be seen. As described above, the adhesive tab 34 is folded outwards and attached to the back of the cardboard backing 1. Therefore, the adhesive tab 34 is not visible through the through-hole 11, which improves the appearance of the product.

[0024] <2. Method of assembling and using the packaging container> Next, the assembly method of the packaging container configured as described above will be explained. First, as shown in Figure 4, the first side wall portion 31, the front wall portion 32, and the second side wall portion 33 are folded to form a rectangular cross-sectional space, and the adhesive portion 34 is attached to the back surface of the cardboard base 1 with adhesive. Next, the second closing portion 5 is formed. First, as shown in Figure 5(a), the second closing flap 54 is folded. Next, as shown in Figure 5(b), the first horizontal flap 51 and the second horizontal flap 52 are folded over the second closing flap 54. Subsequently, the first closing flap 53 is folded, and the protrusion 532 of the first closing flap 53 is inserted between the two protrusions 542 of the second closing flap 54. As a result, the second opening is closed by the second closing portion 5.

[0025] Next, an item is inserted through the first opening of the storage section 2 to form the first closing section 4. First, as shown in Figure 6(a), the support flap 42 is folded. Next, as shown in Figure 6(b), the lateral flap 41 is folded over the support flap 42. Then, as shown in Figure 6(c), the closing flap 43 is folded and the insertion flap 44 is inserted into the notch 411 of the lateral flap 41. In this way, the first opening is closed by the first closing section 4, and the assembly of the packaging container is completed.

[0026] To remove the product from the assembled packaging container, as shown in Figure 7, grasp the protrusion 431 of the closing flap 43 of the first closing section 4 with the fingers of your right hand and pull it toward the cardboard backing 1 in the direction of the arrow. This will break the break line 432, separating the closing flap 43 into left and right halves. After that, you can remove the product by lifting the lateral flap 41 and the support flap 42. At this time, inserting your finger into the recess 421 formed in the support flap 42 will make it easier to lift the support flap 42.

[0027] <3. Features> The packaging container configured as described above can provide the following benefits. (1) As described above, since the closing flap 43 in the first closing section 4 extends from the second side wall 33 toward the first side wall 31, the following effects can be obtained.

[0028] When the adhesive portion 34 is folded outwards and attached to the back of the backing paper 1, the appearance of the product is improved, but a gap is more likely to form between the adhesive portion 34 and the backing paper 1. As shown in the comparative example in Figure 8, when a closing flap 403 is connected to the front wall portion 302 and an insertion flap 404 is inserted between the side flap 401 and the backing paper 10, the insertion flap 404 can easily move toward the gap between the adhesive portion 304 and the backing paper 10, as shown in Figure 9. When the insertion flap 404 enters between the backing paper 10 and the adhesive portion 34, there was a possibility that the engagement between the insertion flap 404 and the side flap 401 would be released. As a result, there was a problem that the closing portion was easily opened.

[0029] In contrast, in the packaging container according to this embodiment, a closing flap 43 is connected to the second side wall portion 33, and the closing flap 43 extends in the left-right direction. The insertion flap 44 is then inserted into the notch 411 of the lateral flap 41. As a result, the movement of the insertion flap 404 as shown in Figure 9 does not occur, and the displacement of the insertion flap 44 is restricted, thereby suppressing the detachment of the insertion flap 44.

[0030] (2) Because the width of the upper opening of the main body 3 in the left-right direction is longer than the width in the front-back direction, the moment required when the closing flap 43 opens becomes larger, and as a result, the closing flap 43 can be prevented from opening easily.

[0031] (3) The closing flap 43 is connected to the second side wall portion 33 and extends toward the first side wall portion 31. The first side wall portion 31, which is directly connected to the backing paper 1, is less prone to deformation than the second side wall portion 33, which is connected to the adhesive portion 34 that is adhered to the backing paper 1. Therefore, compared to the case where the closing flap 43 is connected to the first side wall portion 31 and the insert flap 44 is inserted near the second side wall portion 33, the insert flap 44 is less likely to shift. Thus, the detachment of the insert flap 44 is further suppressed.

[0032] (4) The second side wall portion 33 is positioned on the right side toward the back surface of the cardboard backing 1 with the first closing portion 4 facing upwards. This makes it easier for right-handed workers to assemble the packaging container according to this embodiment by hand. Thus, the manufacturing efficiency of the packaging container is improved.

[0033] (5) Since the break line 432 of the closing flap 43 is formed in a convex arc shape to the left, when grasping the protrusion 431 with the right hand and moving it toward the backing paper 1, it is easier to break the break line 432 by moving the right hand to the right while moving toward the backing paper 1, as shown by the arrow in Figure 7. Therefore, since the break line 432 is formed in a convex arc shape to the left to match this movement of the right hand, it is easier to break the break line 432.

[0034] (6) The second closing portion 5 is formed along the lower edge of the cardboard backing 1, and the second closing portion 5 is located at the lowest point of the packaging container. If the second closing portion 5 were not at the lowest point of the packaging container, dropping the packaging container with the second closing portion 5 facing downwards could cause the second closing portion 5 to open due to the inertia acting on the product during impact. In contrast, in the packaging container according to this embodiment, when the packaging container is dropped with the second closing portion 5 facing downwards, the second closing portion 5 is the first to contact the ground. Therefore, the second closing portion 5 is prevented from opening due to pressure from the product.

[0035] <4. Variation> Although one embodiment of the present invention has been described above, the present invention is not limited thereto, and various modifications are possible without departing from the spirit of the invention. The following modifications can be assembled as appropriate.

[0036] (1) In the above embodiment, the first closing section 4 is configured such that a closing flap 43 is provided on the second side wall 33 and an insertion flap 44 is inserted into the first side wall 31 side, but this can be reversed. That is, the closing flap 43 may be provided on the first side wall 31 and the insertion flap 44 may be inserted into the second side wall 33 side.

[0037] (2) In the above embodiment, the first closing portion 4 is configured to insert the insert flap 44 into the notch 411 of the lateral flap 41, but the lateral flap 41 is not required, and the insert flap 44 can also be inserted between the support flap 42 and the first side wall portion 31.

[0038] (3) In the above embodiment, the length of the closing parts 4 and 5 in the left-right direction is longer than the length in the front-back direction, but the length in the left-right direction can also be shorter than the length in the front-back direction.

[0039] (4) The configuration of the second closing section 5 is not particularly limited and can be the same as that of the first closing section 4.

[0040] (5) In the above embodiment, the storage section 2 is located in the lower left of the back surface of the backing sheet 1, but the position of the storage section 2 is not particularly limited. The shape of the backing sheet 1 can be various shapes other than a rectangle. Also, the information to be written on the backing sheet 1 is not particularly limited.

[0041] (6) In the above embodiment, the housing portion 2 is formed in the shape of a rectangular tube, but it can also be formed in the shape of a polygonal prism. However, the side wall portion to which the closing flap 43 is connected and the side wall portion to which the insert flap 44 is inserted must face each other, and it is sufficient that the adhesive portion 34 is connected to either side wall portion. [Examples]

[0042] The following describes embodiments of the present invention. However, the present invention is not limited to the following embodiments.

[0043] First, the packaging containers shown in Figures 1 to 3 were manufactured as examples, and the packaging container shown in the unfolded view in Figure 8 was manufactured as a comparative example. The comparative example differs from the example in the configuration of the first closure section. The first closure section of the comparative example comprises a horizontal flap 401 connected to the first side wall 301, a horizontal flap 402 connected to the second side wall 303, a closing flap 403 connected to the front wall 302, and an insert flap 404 connected to the tip of the closing flap 403. In addition, the product 501 shown in Figure 10 was placed in each packaging container so that its upper end faced the first closure section. This product 501 comprises a storage section 502 having an opening at the top and containing a liquid medicine, and a vertically elongated cap 503 that closes the opening of the storage section 502. The following drop tests were performed on these examples and comparative examples.

[0044] As shown in Figure 11, a pair of packaging containers 100 were combined so that their respective storage compartments 2 and backing boards 1 were in contact, and multiple (96 in total) of these packaging containers were packed tightly into a rectangular packaging box 60. The packaging box was sealed with tape. Although the packaging containers shown in Figure 11 are denoted by reference numerals related to the embodiment, the packaging containers of the comparative example were similarly placed in the packaging box 60. One such packaging box was prepared for both the embodiment and the comparative example.

[0045] Next, the packaging box was dropped from a height of 60 cm onto a metal plate with the first closure facing downwards. This drop test was performed three times for each box. After each drop test, the packaging box 60 was opened, and the number of packaging containers whose closure flap of the first closure was opened was counted. Once a closure flap was opened, it was left as is and the number of opened flaps was cumulatively counted for subsequent drop tests.

[0046] The results are as follows: [Table 1]

[0047] As shown in Table 1, none of the closing flaps of the packaging containers in the examples were opened, while openings of the closing flaps were observed in the packaging containers of the comparative examples. Therefore, it was confirmed that the closing flaps of the packaging containers in the examples were less likely to open when subjected to impact. [Explanation of Symbols]

[0048] 1: Backing board 2: Containment section 3: Main body 4: 1st closing part 5:Second closing part 31: First side wall section 33: Second side wall section 34: Glue section 43: Closure flap 44: Insert flap 432: Broken line

Claims

1. A cardboard base having a first side and a second side, A storage section fixed to the first surface for storing articles, Equipped with, The aforementioned housing section is The main body is formed in a cylindrical shape, A closing portion that closes one end of the main body, Equipped with, The main body is, A first side wall portion extending from the aforementioned mounting board, A second side wall portion facing the first side wall portion, A glue tab is connected to the second side wall and adhered to the first surface of the backing paper at a position opposite to the first side wall relative to the second side wall, A front wall portion connected to the first side wall portion and the second side wall portion, and facing the backing paper, Equipped with, The aforementioned closing portion is A closing flap connected to either the first side wall portion or the second side wall portion, extending to the other side of either the first side wall portion or the second side wall portion, It comprises an insertable flap connected to the tip of the closing flap and insertable into the inside of the main body, The closing flap has a projection that protrudes from the front wall portion in the direction opposite to the backing paper, and a break line for dividing the closing flap in a direction intersecting the direction from the first side wall portion toward the second side wall portion, and is connected to the second side wall portion and extends toward the first side wall portion. The second side wall portion is positioned to the right of the first surface of the backing sheet with the closing portion facing upwards. A packaging container in which the break line is curved so as it approaches the backing paper, it approaches the adhesive portion.

2. The packaging container according to claim 1, wherein the first distance from the first side wall to the second side wall is longer than the second distance from the front wall to the backing paper.

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