Development unit and packaging container

Abstract

To provide an art for easily carrying out an operation, in a state two developments are superposed together, to bend one development into superposition.MEANS FOR SOLVING THE PROBLEM: A development unit comprises a first development and a second development. The first development has an outer wall positioned in a side of a packaging container and an upper-end board connected to an upper-end edge of the outer wall through a first bend line and positioned at an upper end of the packaging container, and the second development has an inner wall arranged superposed with the outer wall and to be arranged inside the outer wall in the packaging container and an overlap piece connected to an upper-end edge of the inner wall through a second bend line and to be bonded superposed on an inner surface of the inner wall opposite to the outer wall. If the overlap piece is arranged on the same plane as the inner wall, the overlap piece and the upper-end board are arranged superposed. By rotating the upper-end board at the first bend line toward the overlap piece relative to the outer wall, the overlap piece may be rotated at the second bend line relative to the inner wall and moved to a position superposed on an inner surface of the inner wall opposite to the outer wall.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] This specification discloses a developed unit for a packaging container.

Background Art

[0002] Patent Document 1 discloses a packaging container including a storage container and a lid portion that covers the storage container. The packaging container is produced by overlapping and adhering a developed body for producing the storage container and a developed body for producing the lid portion, and then folding the folding lines of both developed bodies.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When improving the strength and performance of a container by stacking and arranging sheet materials, when manufacturing a packaging container by folding two developed bodies in a stacked state, the operation of folding the sheet materials of one developed body and overlapping them with each other may be difficult to perform due to the other developed body.

[0005] This specification provides a technique that can easily execute the operation of folding and overlapping one developed body in a state where two developed bodies are stacked.

Means for Solving the Problems

[0006] The first aspect disclosed in this specification relates to a deployed unit. The deployed unit includes a first deployed body and a second deployed body that overlaps the first deployed body. The first deployed body includes an outer wall located on the side surface of the packaging container and an upper end plate connected to the upper end edge of the outer wall via a first bending line and located at the upper end of the packaging container. The second deployed body is arranged to overlap the outer wall and includes an inner wall arranged inside the outer wall in the packaging container and a overlapping piece connected to the upper end edge of the inner wall via a second bending line and adhered to overlap the inner surface of the inner wall on the side opposite to the outer wall. When the overlapping piece is arranged on the same flat plate as the inner wall, the overlapping piece and the upper end plate overlap, and by rotating the upper end plate relative to the outer wall at the first bending line toward the overlapping piece side, the overlapping piece can be rotated relative to the inner wall at the second bending line and moved to a position overlapping the inner surface on the side opposite to the outer wall of the inner wall.

[0007] According to this configuration, when manufacturing the deployed unit, when performing the operation of overlapping the first deployed body and the second deployed body and overlapping the overlapping piece on the inner wall, with the overlapping piece overlapping the upper end plate, by bending the upper end plate relative to the outer wall at the first bending line, the overlapping piece can be bent relative to the inner plate at the second bending line. When bending the overlapping piece relative to the inner wall at the second bending line, by bending the first deployed body together, a situation where the first deployed body gets in the way of the operation can be avoided. Thereby, it is possible to suppress a decrease in the efficiency of the operation.

[0008] The second aspect disclosed in this specification is, in the first aspect, the first deployed body and the second deployed body are adhered to each other in an adhesion region arranged on each of the outer wall and the inner wall, and at least one of the outer wall and the inner wall may be provided with a cut line separating the adhesion region and other portions.

[0009] According to this configuration, the adhesive state between the inner wall and the outer wall can be released by breaking the cut line and separating the adhesive region from one of the inner wall and the outer wall.

[0010] In a third aspect disclosed in this specification, in the first or second aspect, the second developed body is connected to the lower edge of the inner wall, further includes a bottom wall located at the bottom of the packaging container, and the inner wall includes a first engaging portion that can be engaged externally in the packaging container in a region overlapping the overlapping piece. The overlapping piece may be arranged to overlap the first engaging portion and include a second engaging portion that can be engaged externally in the packaging container.

[0011] According to this configuration, a bottom wall can be arranged on a part of the packaging container made from the second developed body. By removing a part of the packaging container made from the first developed body from the packaging container, a part of the packaging container made from the second developed body can support the object in a state where the object to be stored in the packaging container is stored. Using the first engaging portion and the second engaging portion, a part of the packaging container made from the second developed body can be engaged externally to display the object.

[0012] In a fourth aspect disclosed in this specification, in the third aspect, the first engaging portion includes a first engaging piece that can protrude from the inner wall to the side opposite to the overlapping piece, and the second engaging portion may overlap the first engaging piece and include a second engaging piece that can protrude together with the first engaging piece.

[0013] According to this configuration, a part of the packaging container made from the second developed body can be engaged externally using the first engaging piece and the second engaging piece. Thereby, a part of the packaging container can be suspended and displayed. By overlapping the first engaging piece and the second engaging piece, the first engaging piece can be reinforced.

[0014] The fifth aspect disclosed in this specification is that, in the fourth aspect, the first engaging piece can be cut out from the inner wall by a breaking portion, and the second engaging piece may be arranged along the edge of the overlapping piece.

[0015] According to this configuration, the first engaging piece and the second engaging piece can be easily protruded.

[0016] The sixth aspect disclosed in this specification is that, in any one of the third to fifth aspects, the first engaging portion includes a first through hole penetrating the inner wall, the second engaging portion overlaps with the first through hole, and may include a second through hole penetrating the overlapping piece.

[0017] According to this configuration, by inserting an external member such as a hook into the first through hole and the second through hole, a part of the packaging container made from the second developed body can be suspended.

[0018] A packaging container produced from the developed body unit of any one of the above first to sixth aspects is also novel and useful.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0020] (Example) The packaging container 10 shown in FIG. 1 is used for packaging, transporting, and storing an object. The object stored in the packaging container 10 is, for example, a product displayed in a store or the like. In the drawings, the vertical direction, the front - rear direction, and the left - right direction used throughout this embodiment are shown. These vertical, front - rear, and left - right directions are used for facilitating the description of this embodiment and do not define the usage direction of the packaging container 10.

[0021] The packaging container 10 has a rectangular parallelepiped shape. In a modified example, the packaging container 10 may have other shapes such as a cube shape. The packaging container 10 is closed by the upper end plates 72, 76 of the lid portion 14. The packaging container 10 includes a storage container 16 (see FIG. 7) and a lid portion 14 that covers the storage container 16. When the packaging container 10 is closed, the storage container 16 is covered by the lid portion 14, and the object placed in the storage container 16 is stored in the packaging container 10.

[0022] (Configuration of the developed body of the storage container) As shown in FIG. 2, the storage container 16 is assembled by folding a single - sheet corrugated paper developed body BL1 along the folding lines. In FIG. 2, the adhesive application areas are represented by grid - like thin lines. The folding lines are drawn as thin broken lines. At least one of a concave groove, a perforation, and a slit is formed in the folding lines to facilitate folding. Also, the material of the storage container 16 is not limited to corrugated paper and may be, for example, cardboard, a resin - made flat plate, or the like.

[0023] The storage container 16 includes an inner wall 20, a bottom wall 30, and an overlapping piece 40. The inner wall 20 constitutes the side surface of the storage container 16. The inner wall 20 includes inner side plates 24, 28, an inner front plate 26, and an inner back plate 22. The inner back plate 22 is located at the rear end of the storage container 16. The inner back plate 22 has a rectangular flat plate shape.

[0024] The inner side plate 24 is connected to the inner back plate 22 via a folding line. The inner side plate 24 has a substantially rectangular flat plate shape, and the connection portion between the upper end and the front end is formed in an arc shape. Also, the front edge of the inner side plate 24 extends forward at a part of the lower end. The inner front plate 26 is connected to the edge of the inner side plate 24 on the side opposite to the inner back plate 22, that is, the front edge in the storage container 16, via a folding line. The inner front plate 26 has a quadrangular flat plate shape. The inner front plate 26 is shorter than the total length of the storage container 16 in the vertical direction. As a result, the front of the storage container 16 is open. Note that the front end portion of the inner side plate 24 is made to the height corresponding to the inner front plate 26. The inner side plate 28 is connected to the edge of the inner front plate 26 on the side opposite to the inner side plate 24 via a folding line. The inner side plate 28 has the same shape as the inner side plate 24.

[0025] An adhesive piece 22a is connected to the edge of the inner back plate 22 on the side opposite to the inner side plate 24 via a folding line. In the storage container 16, the adhesive piece 22a is adhered to the inner surface of the inner side plate 28.

[0026] The bottom wall 30 constitutes the bottom of the packaging container 10 and the storage container 16. The bottom wall 30 has four bottom plates 32, 34, 36, 38. The bottom plate 32 is connected to the lower end of the inner back plate 22 via a folding line. The bottom plate 34 is connected to the lower end of the inner side plate 24 via a folding line. The bottom plate 36 is connected to the lower ends of the inner front plates 26 via folding lines. The bottom plate 38 is connected to the lower end of the inner side plate 28 via a folding line.

[0027] The overlapping piece 40 is connected to the upper end of the inner back plate 22 via a folding line 42. The overlapping piece 40 has a rectangular flat plate shape. In the vertical direction, the overlapping piece 40 is shorter than the inner back plate 22.

[0028] (Configuration of the unfolded body of the lid part) As shown in FIG. 3, the lid part 14 is assembled by folding a single unfolded body BL2 made of cardboard along the folding lines. In FIG. 3, the bonding areas where the adhesive is applied are represented by grid-like thin lines. The folding lines are drawn as thin dashed lines. The folding lines have the same configuration as the unfolded body BL1. Note that the material of the lid part 14 is not limited to cardboard like the storage container 16 and may be different from the storage container 16.

[0029] The lid part 14 includes an outer wall 60 and an upper wall 70. The outer wall 60 constitutes the side surfaces of the packaging container 10 and the lid part 14. The outer wall 60 includes an outer back plate 62, outer side plates 64, 68, and an outer front plate 66. The outer back plate 62 has a rectangular flat plate shape. In the vertical direction, the outer back plate 62 is longer than the inner back plate 22.

[0030] The outer side plate 64 is connected to the outer back plate 62 via a folding line. The outer side plate 64 has a rectangular flat plate shape. The outer front plate 66 is connected to the edge of the outer side plate 64 opposite to the outer back plate 62 via a folding line. The outer front plate 66 has the same flat plate shape as the outer back plate 62. The outer side plate 68 is connected to the edge of the outer front plate 66 opposite to the outer side plate 64 via a folding line. The outer side plate 68 has the same shape as the outer side plate 64.

[0031] A through hole 90 is arranged along the folding line between the outer side plate 64 and the outer front plate 66. Also, a notch 92 is arranged along the folding line between the outer front plate 66 and the outer side plate 68. The through hole 90 and the notch 92 are formed to prevent interference with the inner front plate 26 in the packaging container 10.

[0032] An adhesive piece 68a is connected to the edge of the outer side plate 68 opposite to the outer front plate 66 via a folding line. In the lid part 14, the adhesive piece 68a is adhered to the outer surface of the outer back plate 62.

[0033] The upper wall 70 constitutes the top surfaces of the packaging container 10 and the lid portion 14. The upper wall 70 has four upper end plates 72, 74, 76, 78. The upper end plate 72 is connected to the upper end of the outer back plate 62 via a bending line 71. The upper end plate 74 is connected to the upper end of the outer side plate 64 via a bending line. The upper end plate 76 is connected to the upper ends of the outer front plates 66 via bending lines respectively. The upper end plate 78 is connected to the upper end of the outer side plate 68 via a bending line. The bending line 71, unlike the bending lines between the upper end plate 74 and the outer side plate 64 etc., has a width of, for example, 1.0 mm.

[0034] (Method for manufacturing the developed body unit and the packaging container) As shown in FIG. 5, when manufacturing the packaging container 10 from the developed bodies BL1, BL2, first, the developed body unit BL3 is manufactured. Specifically, as shown in FIG. 4, the developed body BL1 is placed on the surface (the back surface in FIG. 3) located inside the packaging container 10 of the developed body BL2, and the developed bodies BL1, BL2 are adhered in the adhesion regions 94, 94. In the state shown in FIG. 4, the inner back plate 22 is disposed overlapping the outer back plate 62. Similarly, each of the inner side plates 24, 28 and the inner front plate 26 is disposed overlapping each of the outer side plates 64, 68 and the outer front plates 66 respectively. Also, the overlapping piece 40 is disposed overlapping the upper end plate 72. Since the outer back plate 62 is longer than the inner back plate 22 in the vertical direction, the bending line 71 is located slightly above the bending line 42.

[0035] Next, the upper end plate 72 is bent at the bending line 71 toward the overlapping piece 40 side with respect to the outer back plate 62, that is, the front side of the paper surface in FIG. 4. Thereby, the overlapping piece 40 is pushed by the upper end plate 72 and is bent together with the upper end plate 72 at the bending line 42 with respect to the inner back plate 22. The bending line 71 is disposed slightly above the bending line 42. Thereby, it is possible to prevent a situation where the overlapping piece 40 and the inner back plate 22 are sandwiched between the upper end plate 72 and the outer back plate 62 at the bending line 71, interfering with the bending of the upper end plate 72. Also, the bending line 71 is formed wider compared to the bending line 42. Thereby, even though the overlapping piece 40 and the inner back plate 22 are disposed between the upper end plate 72 and the outer back plate 62, the upper end plate 72 can be rotated smoothly.

[0036] When the overlapping piece 40 abuts against the inner surface of the inner back plate 22, it is adhered to the inner back plate 22 by an adhesive applied to the adhesion regions 96, 96 (see FIG. 2). Thereby, the unfolded unit BL3 shown in FIG. 5 is produced. According to this configuration, the upper end plate 72 can be used to arrange the overlapping piece 40 so as to overlap the inner back plate 22. Thereby, when arranging the overlapping piece 40 so as to overlap the inner back plate 22, it is not necessary to avoid the unfolded body BL2 and perform the operation.

[0037] To produce the packaging container 10 from the unfolded unit BL3, each of the bottom plates 32, 34, 36, 38 is bent so as to overlap the inner surfaces of the inner back plate 22, the inner side plates 24, the inner front plate 26, and the inner side plate 28, respectively. Also, the fold line between the outer front plate 66 and the outer side plate 68 and the fold line between the inner front plate 26 and the inner side plate 28 are overlapped and bent, and the fold line between the outer back plate 62 and the outer side plate 64 and the fold line between the inner back plate 22 and the inner side plate 24 are overlapped and bent. In the bottom wall 30, the bottom plate 32 and the bottom plate 34 are adhered, and the bottom plate 36 and the bottom plate 38 are adhered. The adhesive piece 22a is adhered to the inner surface of the inner side plate 28, and the adhesive piece 68a is adhered to the outer surface of the outer back plate 62. Thereby, the folded packaging container 10 is assembled.

[0038] The folded packaging container 10 is unfolded into a rectangular parallelepiped shape, and the packaging container 10 is closed with the upper end plates 72, 74, 76, 78, whereby the packaging container 10 is assembled.

[0039] (Method for opening the packaging container) In the packaging container 10, the lid portion 14 and the storage container 16 are adhered by the adhesion regions 94, 94. In the storage container 16, a cut-off piece 52 is arranged on the inner side plate 24. The cut-off piece 52 is connected to the other part of the inner side plate 24 by a cut line 56 such as a perforation or a slit. The cut-off piece 52 surrounds the adhesion region 94. Above the cut-off piece 52, a through hole 54 is arranged. Similarly, on the inner side plate 28, a cut-off piece 52 surrounding the adhesion region 94 and a through hole 54 are arranged.

[0040] On the lid portion 14, a rotating piece 82 is arranged on the outer plate 64. The rotating piece 82 is connected to other parts of the outer plate 64 by a cut line 86 and a bending line 87 such as a perforation or a slit. The rotating piece 82 surrounds an adhesive area 94. Above the rotating piece 82, a flap 84 is arranged. The flap 84 is arranged at a position overlapping the through hole 54. The flap 84 is rotatably arranged with respect to the outer plate 64 at a bending line 88 at the upper end. Similarly, on the outer plate 68, a rotating piece 82 and a flap 84 surrounding the adhesive area 94 are also arranged.

[0041] As shown in FIG. 6, the user pushes in the flap 84 with a finger and inserts the finger into the inside of the packaging container 10 through the through hole 54. By pulling the separation piece 52 outward from the inside of the separation piece 52, the separation piece 52 is separated from the inner plate 24. Similarly, the other separation piece 52 is separated from the inner plate 28. Thereby, the lid portion 14 and the storage container 16 can be separated. The user can open the packaging container 10 and expose the storage container 16 by pulling up the lid portion 14 from the storage container 16.

[0042] By arranging the storage container 16 at a store or the like with the object stored therein, the object can be displayed at a store or the like. Further, the storage container 16 can be suspended and arranged by using an engaging portion arranged on the inner back plate 22.

[0043] (Configuration of the engaging portion) As shown in FIG. 7, the inner back plate 22 and the overlapping piece 40 are provided with engaging portions. The engaging portions include engaging pieces 44, 44, engaging pieces 46, 46, and through holes 48. The engaging pieces 44, 44 are respectively arranged at both left and right ends of the inner back plate 22. The engaging piece 44 is formed by overlapping an engaging piece 44b arranged on the inner back plate 22 and an engaging piece 44a arranged on the overlapping piece 40. The left end edge of the left engaging piece 44b is arranged at the boundary between the inner back plate 22 and the inner side plate 24. The left end edge of the left engaging piece 44b is separable by a perforation arranged on the folding line between the inner back plate 22 and the inner side plate 24. Further, in the left engaging piece 44b, edges other than the right end edge are separable from the inner back plate 22 by perforations. Thereby, the left engaging piece 44b can be bent backward at the folding line 44d from the inner back plate 22. The left engaging piece 44a is arranged along the left end edge of the overlapping piece 40. Similar to the engaging piece 44b, the left engaging piece 44a is separable from the overlapping piece 40 by perforations at portions other than the folding line 44e. The left engaging piece 44a can be bent backward from the inner back plate 22 in a state of overlapping the left engaging piece 44b. The same applies to the right engaging pieces 44a, 44b. In addition, at the edges of the engaging pieces 44, 44, 46, 46, there may be arranged a breaking portion including at least one of a configuration in which perforations or a zipper (i.e., a configuration in which a pair of perforations arranged in parallel are provided, and a portion located between the pair of perforations is cut off by breaking the pair of perforations) are intermittently cut in advance so that the user can easily break them, and a configuration in which they are already broken like a slit.

[0044] As shown in FIG. 8, using the engaging pieces 44, 44, the storage container 16 can be engaged with an object 100 extending in the horizontal direction, such as a wire mesh.

[0045] The engaging pieces 46, 46 are arranged at the center in the left-right direction of the inner back plate 22. The engaging pieces 46, 46 are configured by overlapping an engaging piece 46b arranged on the inner back plate 22 and an engaging piece 46a arranged on the overlapping piece 40. For the engaging piece 46b, portions other than the upper end edge are separated from the inner back plate 22 by slits. The engaging piece 46b can project rearward from the inner back plate 22. Similarly to the engaging piece 46b, the engaging piece 46a is partially separated from the overlapping piece 40 by slits. The engaging piece 46b can be bent rearward from the inner back plate 22 while overlapping with the engaging piece 46a. As shown in FIG. 9, the storage container 16 can be engaged with an object 100 using the engaging piece 46. With the engaging piece 46, it is possible to engage even an object shorter than the engaging pieces 44, 44. Since the engaging pieces 44, 44 have a space therebetween in the left-right direction, the storage container 16 can be stably supported.

[0046] The through hole 48 is arranged at the center in the left-right direction of the inner back plate 22. The through hole 48 is configured by overlapping a through hole 48b penetrating the inner back plate 22 and a through hole 48a penetrating the overlapping piece 40. As shown in FIG. 10, using the through hole 48, the storage container 16 can be engaged with, for example, a rod-shaped object 102.

[0047] In the storage container 16, it can be suspended and displayed using any one of the engaging pieces 44, 44 of the engaging portion, the engaging piece 46, and the through hole 48. Depending on the object for suspending the storage container 16, the engaging pieces 44, 44, the engaging piece 46, and the through hole 48 can be used appropriately.

[0048] The engaging pieces 44, 44, the engaging piece 46, and the through hole 48 are configured by overlapping the inner back plate 22 and the overlapping piece 40. Thereby, the strength of the engaging pieces 44, 44, the engaging piece 46, and the through hole 48 can be improved.

[0049] As described above, the embodiments of the present invention have been described in detail, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

[0050] For example, the number of engaging pieces and through holes arranged in the engaging portion is not particularly limited. For example, the engaging piece 46 may not be arranged. Alternatively, in addition to the engaging pieces 44, 44, the engaging piece 46, and the through hole 48, for example, an engaging structure such as an engaging piece arranged below the engaging piece 46 and a pair of through holes arranged below the engaging pieces 44, 44 may be arranged.

[0051] In addition, the technical elements described in this specification or the drawings exhibit technical utility either alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Further, the technology exemplified in this specification or the drawings achieves a plurality of purposes simultaneously, and achieving one of those purposes itself has technical utility.

Explanation of Reference Numerals

[0052] 10: Packaging container, 14: Lid portion, 16: Storage container, 20: Inner wall, 22: Inner back plate, 24, 28: Inner side plates, 26: Inner front plate, 30: Bottom wall, 32, 34, 36, 38: Bottom plates, 40: Overlapping piece, 44, 46, 48: Through holes, 52: Detaching piece, 56: Cut line, 60: Outer wall, 62: Outer back plate, 64, 68: Outer side plates, 66: Outer front plate, 70: Upper wall, 72, 74, 76, 78: Upper end plates, 82: Rotating piece, 84: Flap, 86: Cut line, BL1, BL2: Developed body, BL3: Developed body unit

Claims

1. a first deployed body, and a second deployed body that overlaps the first deployed body, wherein the first deployed body includes an outer wall located on a side surface of the packaging container, and an upper end plate that is connected to an upper end edge of the outer wall via a first folding line and is located at an upper end of the packaging container, wherein the second deployed body includes an inner wall that is disposed to overlap the outer wall and is disposed inside the outer wall in the packaging container, and a overlapping piece that is connected to an upper end edge of the inner wall via a second folding line and is adhered to overlap an inner surface of the inner wall on a side opposite to the outer wall, when the overlapping piece is disposed on the same flat plate as the inner wall, the overlapping piece and the upper end plate are disposed to overlap each other, and by rotating the upper end plate with respect to the outer wall at the first folding line toward the overlapping piece side, the overlapping piece can be rotated with respect to the inner wall at the second folding line and moved to a position overlapping the inner surface of the inner wall on the side opposite to the outer wall, a deployed body unit.

2. The first deployed body and the second deployed body are adhered to each other in an adhesion region disposed on each of the outer wall and the inner wall, and at least one of the outer wall and the inner wall includes a cut line that separates the adhesion region from another portion, the deployed body unit according to claim 1.

3. The second deployed body is connected to a lower end edge of the inner wall and further includes a bottom wall located at a bottom of the packaging container, the inner wall includes a first engaging portion that can be engaged with the outside in the packaging container in a region overlapping the overlapping piece, the overlapping piece is disposed to overlap the first engaging portion and includes a second engaging portion that can be engaged with the outside in the packaging container, the deployed body unit according to claim 1 or 2.

4. The first engaging portion includes a first engaging piece that can protrude from the inner wall to a side opposite to the overlapping piece, the second engaging portion overlaps the first engaging piece and includes a second engaging piece that can protrude together with the first engaging piece, the deployed body unit according to claim 3.

5. The first engaging piece can be cut out from the inner wall by a breaking portion, the second engaging piece is disposed along an edge of the overlapping piece, the deployed body unit according to claim 4.

6. The first engaging portion includes a first through hole that penetrates the inner wall, The second engaging portion overlaps with the first through hole and includes a second through hole that penetrates the overlapping piece, the developed body unit according to claim 3.

7. A packaging container produced from the developed body unit according to claim 1 or 2.

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