Packaging container and surface development

Abstract

To provide a technology relating to a novel mode of packaging container.SOLUTION: A space is formed in a packaging container 10 for storing an object X between a first ramp 32 and a second ramp 42. The first ramp and the second ramp prevent the object X from moving beyond the first ramp and the second ramp toward a rear plate.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] This specification discloses a technique relating to a packaging container for storing an object. [Background technology]

[0002] Patent Document 1 discloses a packaging container having six wall portions surrounding the contents, a window hole formed in the front wall portion, and folding pieces that are folded inward from both sides of the window hole and pressed against the contents. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-46429 A Summary of the Invention [Problem to be solved by the invention]

[0004] Packaging containers require shapes and assembly methods that match their intended use and the shape of the objects they are intended to pack.

[0005] The present specification provides technology relating to a novel aspect of a packaging container. [Means for solving the problem]

[0006] A first aspect disclosed in this specification relates to a packaging container. The packaging container is transformed from an unfolded state to a packaged state, and includes a back panel, a first side portion including a first side panel extending forward from the back panel in the packaged state, and a first inclined panel connected to the first side panel at a position spaced forward from the back panel and inclined toward the back panel, a second side portion including a second side panel extending forward from the back panel in the packaged state and facing the first side panel across the back panel, and a second inclined panel connected to the second side panel at a position spaced forward from the back panel and inclined toward the back panel, and the first side portion including a second inclined panel connected to the second side panel at a position spaced forward from the back panel and inclined toward the back panel. and a positioning portion which positions the first side portion and the second side portion, wherein in the unfolded state, the first side plate and the second side plate are rotatable relative to the back plate independently of each other, and the positioning portion is connected to the back plate, the first side portion and the second side portion, respectively, in the packaged state, and in the packaged state, a storage space for storing an object to be packaged is formed between the first inclined plate and the second inclined plate, and the first inclined plate and the second inclined plate may prevent the object from moving beyond the first inclined plate and the second inclined plate toward the back plate.

[0007] In this configuration, the first side portion and the second side portion rotate independently of each other with respect to the back plate in the unfolded state. The first side portion and the second side portion can be positioned with respect to the back plate by the positioning portion. Since the object can be positioned forward of the first inclined plate and the second inclined plate, the object can be prevented from moving within the packaging container.

[0008] In a second aspect disclosed in this specification, in the first aspect above, the positioning portion may, in the packaged state, comprise an extension piece extending forward from the back plate, a first penetrating piece extending from the extension piece and penetrating the first side portion, and a second penetrating piece extending from the extension piece and penetrating the second side portion.

[0009] According to this configuration, the first penetrating piece and the second penetrating piece penetrate the first side portion and the second side portion, respectively, and therefore it is possible to prevent the first side portion and the second side portion from being disconnected from the positioning portion, respectively, and thus it is possible to appropriately position the first side portion and the second side portion with respect to the back plate.

[0010] In a third aspect disclosed in the present specification, in the above second aspect, the extension piece may cover a part of a front of the storage space in the packaged state.

[0011] According to this configuration, by covering a portion of the front of the storage space with the extension piece, it is possible to prevent an object stored in the storage space from falling out of the storage space.

[0012] In a fourth aspect disclosed in this specification, in the third aspect described above, in the packaged state, the first penetrating piece may penetrate the first side portion from the front of the first side portion, and the second penetrating piece may penetrate the second side portion from the front of the second side portion.

[0013] With this configuration, when the extension piece is positioned in front of the storage space, the first through piece and the second through piece each penetrate through the first side portion and the second side portion, respectively, thereby allowing the extension piece to be fixed in front of the storage space.

[0014] In a fifth aspect disclosed in the present specification, in the first to fourth aspects above, the packaging container may be provided with a fixing piece extending from the first inclined plate and fixed to the back plate.

[0015] According to this configuration, it is possible to suppress the first inclined plate from rotating relative to the first side plate.

[0016] In a sixth aspect disclosed in the present specification, in the first to fourth aspects described above, in the packaged state, the first inclined plate and the second inclined plate may engage with each other.

[0017] According to this configuration, in the packaged state, it is possible to prevent the first inclined plate and the second inclined plate from rotating.

[0018] The above-mentioned deployment body for producing the packaging container is also novel and useful. [Brief description of the drawings]

[0019] [Figure 1] FIG. 2 is a front view of the packaging container in the packaged state according to the first embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II of FIG. [Diagram 3] 1 is a development view of a packaging container according to a first embodiment. [Figure 4] FIG. 1 is a front view of a packaging container in an unfolded state according to a first embodiment. [Diagram 5] FIG. 2 is a side view of the packaging container in the middle of transforming from an unfolded state to a wrapped state in the first embodiment. [Figure 6] FIG. 13 is a front view of the packaging container in the packaging state according to the second embodiment. [Figure 7] 7 shows a cross-sectional view taken along line VII-VII of FIG. [Figure 8] FIG. 13 is a development view of a packaging container according to a second embodiment. [Figure 9] FIG. 13 is a front view of a packaging container according to a second embodiment in an unfolded state. [Figure 10] FIG. 11 is a front view of a packaging container in the middle of being transformed from an unfolded state to a wrapped state in a second embodiment. [Figure 11] FIG. 11 is a side view of a packaging container in the middle of transforming from an unfolded state to a wrapped state in a second embodiment. [Figure 12] FIG. 13 is a front view of a packaging container in a packaged state according to a third embodiment. [Figure 13] 13 shows a cross-sectional view taken along line XIII-XIII in FIG. [Figure 14] FIG. 13 is a development view of a packaging container according to a third embodiment. [Figure 15] FIG. 13 is a front view of a packaging container according to a third embodiment in an unfolded state. [Figure 16]FIG. 11 is a front view of a packaging container in the middle of being transformed from an unfolded state to a wrapped state in a third embodiment. [Figure 17] FIG. 13 is a side view of the packaging container in the middle of transforming from an unfolded state to a wrapped state in the third embodiment. [Figure 18] FIG. 11 is a front view of a packaging container in the middle of being transformed from an unfolded state to a wrapped state in a third embodiment.

[0020] (First embodiment) As shown in FIG. 1, the packaging container 10 in a packaged state packages an object X in a state where the object X is exposed to the outside of the packaging container 10. The packaging container 10 is used to transport the object X and display the object X in a storefront. The object X has an elongated shape, such as a pen. The use of the packaging container 10 is not limited to transportation and display, and may be used for protection, storage, etc. The shape of the object is not particularly limited. The front-back, left-right, and up-down directions included in this specification are defined for ease of explanation, and do not define the posture during actual use.

[0021] As shown in FIG. 3, the packaging container 10 is produced by folding a plurality of fold lines provided on a single flat-plate-shaped developable body BL1. Each of the plurality of fold lines has a groove along the fold line so that the developable body BL1 can be easily folded along the fold line. The plurality of fold lines are represented by thin dashed lines. The developable body BL1 is produced from a single sheet of corrugated cardboard. The developable body BL1 may be produced from paper other than corrugated cardboard or from resin. Also, slits may be provided on the fold lines.

[0022] The packaging container 10 comprises a back plate 12, a pair of side portions 14, 16, an upper end portion 18, and a lower end portion 20. The back plate 12 has a flat plate shape. The side portions 14, 16, the upper end portion 18, and the lower end portion 20 are each formed by bending a flat plate. Note that Fig. 3 is a view of the deployable body BL1 as seen from behind the back plate 12. Therefore, the left-right direction in Fig. 3 is reversed from Figs. 1 and 2.

[0023] The back panel 12 is disposed at the rear end of the packaging container 10. The back panel 12 has a rectangular shape. The side portion 14 is connected to the left edge of the back panel 12 via a fold line 22. The side portion 14 includes a side panel 30 and an inclined panel 32. The side panel 30 has a rectangular shape. The side panel 30 is rotatably connected to the back panel 12 via the fold line 22. The inclined panel 32 is connected to the edge of the side panel 30 opposite the back panel 12 (i.e., the front edge) via a fold line 24. The inclined panel 32 has a rectangular shape. The inclined panel 32 is rotatably connected to the side panel 30 via the fold line 24.

[0024] At the boundary between the side plate 30 and the inclined plate 32, when the fold line 24 is folded, two through holes 34 are formed at the front end in the packaged state, which open onto the fold line 24. The through holes 34 are formed in a slit shape (i.e., a linear cut shape) in the unfolded body BL1. When the fold line 24 is folded and the packaging container 10 is assembled in the packaged state, the through holes 34 open with a width slightly larger than the plate thickness of the unfolded body BL1.

[0025] A plurality of engagement pieces 36, 36 (two in this embodiment) are arranged on the edge 32a of the inclined plate 32 opposite the side plate 30. The multiple engagement pieces 36, 36 have the same shape. The multiple engagement pieces 36, 36 are arranged at intervals in the vertical direction. The engagement pieces 36 protrude from the edge 32a to the side opposite the inclined plate 32. The engagement pieces 36 are recessed in the vertical direction at the end on the inclined plate 32 side.

[0026] The side portion 16 is connected to the right edge of the back panel 12 via a fold line 26. The side portion 16 includes a side panel 40 and an inclined panel 42. The side panel 40 and the inclined panel 42 each have a shape symmetrical to the side panel 30 and the inclined panel 32, respectively. The side panel 40 is rotatably connected to the back panel 12 via the fold line 26. The inclined panel 42 is rotatably connected to the side panel 40 via a fold line 28. A through hole 44 similar to the through hole 34 is formed at the boundary between the side panel 40 and the inclined panel 42.

[0027] A plurality of notches 46, 46 (two in this embodiment) that engage with the plurality of engagement pieces 36, 36 are arranged on the edge 42a of the inclined plate 42 opposite the side plate 40. The plurality of notches 46, 46 have the same shape as one another. The plurality of notches 46, 46 are arranged at intervals in the vertical direction. The notches 46 are recessed from the edge 42a toward the side plate 40. The vertical length of the notches 46 at the edge 42a is shorter than the vertical length of the engagement pieces 36. The vertical length of the notches 46 gradually increases in the direction away from the edge 42a toward the side plate 40.

[0028] The upper end portion 18 is connected to the upper edge of the back plate 12. The upper end portion 18 includes an upper end plate 60, an upper front plate 62, a pair of insertion pieces 64, 64, a pair of through pieces 65, 65, and a header plate 66, 68. The header plate 66 is formed by extending the back plate 12 upward. The header plate 66 extends upward directly from the back plate 12 without passing through a folding line. The header plate 66 has a rectangular shape having the same left-right length as the back plate 12. The header plate 66 is directly connected to the header plate 68 at the upper edge via a folding line 52. The header plate 68 is arranged overlapping the front surface of the header plate 66. The header plate 68 has approximately the same rectangular shape as the header plate 66. The header plates 66, 68 have through holes 66a, 68a formed so as to penetrate from the front surface of the header plate 68 to the rear surface of the header plate 66 while overlapping each other.

[0029] The upper end plate 60 is connected to the end of the header plate 68 opposite the header plate 66 via a fold line 54. The upper end plate 60 has a trapezoidal shape whose left-right length gradually decreases as it moves away from the header plate 68. A pair of insertion pieces 64, 64 are connected to the left and right edges of the upper end plate 60 via fold lines 56, 56, respectively.

[0030] An upper front plate 62 is connected to the edge of the upper end plate 60 opposite the header plate 68 via a fold line 58. The upper front plate 62 has a rectangular shape with a curved notch on the edge opposite the upper end plate 60. A pair of through pieces 65, 65 are connected to the left and right edges of the upper front plate 62 via fold lines 59, 59, respectively.

[0031] A lower end portion 20 is connected to the lower edge of the back panel 12. The lower end portion 20 includes a lower end plate 80, a lower front plate 82, a pair of insert pieces 84, 84, and a pair of insert pieces 85, 85. The lower end plate 80 is connected to the lower edge of the back panel 12 via a fold line 74. The lower end plate 80 has a trapezoidal shape similar to the upper end plate 60. A pair of insert pieces 84, 84 are connected to the left and right edges of the upper end plate 60 via fold lines 76, 76, respectively.

[0032] A lower front panel 82 is connected to the edge of the lower end panel 80 opposite the back panel 12 via a fold line 78. The lower front panel 82, like the upper front panel 62, has a rectangular shape with a curved notch on the edge opposite the lower end panel 80. A pair of insertion pieces 85, 85 are connected to the left and right edges of the lower front panel 82 via fold lines 79, 79, respectively.

[0033] (Method of assembling the packaging container from the deployed body) Next, a method of assembling the packaging container 10 from the unfolded body BL1 will be described with reference to Figures 3 to 5. The unfolded body BL1 is the packaging container 10 in an unfolded state. In the unfolded body BL1, the side portion 14 is folded forward relative to the back panel 12 at the folding line 22, and the side panel 30 is rotated forward of the back panel 12. Also, the inclined panel 32 is rotated rearward relative to the side panel 30 at the folding line 24. Similarly, the side portion 16 is folded forward relative to the back panel 12 at the folding line 26, and the side panel 40 is rotated forward of the back panel 12, and the inclined panel 42 is rotated rearward relative to the side panel 40 at the folding line 28.

[0034] The inclined plates 32, 42 face each other at the center of the back plate 12 in the left-right direction. Each of the multiple engagement pieces 36, 36 is inserted into each of the multiple cutouts 46, 46 to engage with them. As a result, the inclined plate 32 inclines toward the back plate 12, i.e., toward the rear, as it moves from the front edge of the side plate 30 to the side portion 16. Similarly, the inclined plate 42 inclines toward the back plate 12, i.e., toward the rear, as it moves from the front edge of the side plate 40 to the side portion 14. The engagement between the multiple engagement pieces 36, 36 and the multiple cutouts 46, 46 restricts the movement of the inclined plates 32, 42 relative to the back plate 12 and the side plates 30, 40 (see FIG. 2).

[0035] 4, the upper end 18 and the lower end 20 are moved relative to the side portions 14, 16 to transform the packaging container 10 into the wrapped state. The object X is stored in the packaging container 10 while the packaging container 10 is being transformed into the wrapped state.

[0036] Specifically, the lower end plate 80 of the lower end portion 20 is bent forward relative to the back plate 12 at the fold line 74. At this time, the left insertion piece 84 is inserted between the side plate 30 and the inclined plate 32, and the right insertion piece 84 is inserted between the side plate 40 and the inclined plate 42. As a result, the lower end plate 80 positions the back plate 12 and the side portions 14, 16 relative to each other. Next, the lower front plate 82 is bent upward relative to the lower end plate 80 at the fold line 78. At this time, the left insertion piece 85 is inserted into the through hole 34, and the right insertion piece 85 is inserted into the through hole 44. As a result, the lower front plate 82 positions the back plate 12 and the side portions 14, 16 relative to each other.

[0037] Also, the header plate 68 of the upper end portion 18 is folded forward relative to the header plate 66 at the folding line 52, and overlapped with the front surface of the header plate 66. Furthermore, the upper end plate 60 is folded forward relative to the header plate 68 at the folding line 54. At this time, the left insertion piece 64 is inserted between the side plate 30 and the inclined plate 32, and the right insertion piece 64 is inserted between the side plate 40 and the inclined plate 42. As a result, the upper end plate 60 positions the back plate 12 and the side portions 14, 16 relative to each other. The timing is not particularly limited, but at this timing, the object X may be placed in the storage space 90 (see FIG. 2) defined by the inclined plates 32, 42.

[0038] Next, the upper front plate 62 is folded downward relative to the upper end plate 60 at the fold line 58. At this time, the left-side through-hole 65 is inserted into the through-hole 34, and the right-side through-hole 65 is inserted into the through-hole 44. As a result, the upper front plate 62 positions the back plate 12 relative to the side portions 14, 16. In this way, the packaging container 10 in a packaged state is assembled. With regard to the packaging container 10, the packaging container 10 in a packaged state is assembled from the unfolded state without using any processing or work other than assembling the unfolded body BL1, such as adhesive.

[0039] (effect) The packaging container 10 can store an elongated object X such as a pen while exposing it at the front. The inclined plates 32, 42 can hold the object X in a storage space 90 located in front of the inclined plates 32, 42. The inclined plates 32, 42 are not provided with an opening for holding the object X.

[0040] At the upper end 18, the through-pieces 65, 65 are inserted into the through-holes 34, 44 of the side portions 14, 16 to penetrate the side portions 14, 16. This allows the side portions 14, 16 to be positioned relative to the back plate 12. The upper front plate 62 covers the front of the storage space 90. This makes it possible to prevent the object X from falling out of the storage space 90. The same is true for the lower end 20.

[0041] Furthermore, at the upper end 18, the position of the upper front panel 62 can be fixed by inserting the through-holes 65, 65 into the through-holes 34, 44 of the side portions 14, 16. The same is true for the lower end 20.

[0042] Furthermore, at the upper end portion 18, the insertion piece 64 is inserted into the portion where the side plate 30 and the inclined plate 32 are bent, and is inserted into the portion where the side plate 40 and the inclined plate 42 are bent. As a result, the insertion pieces 64, 64 engage with the inclined plates 32, 42, respectively, thereby positioning the upper end plate 60. The same is true for the lower end portion 20.

[0043] (Correspondence) Each of the upper end portion 20 and the lower end portion 30 is an example of a "positioning portion." The upper end plate 60 and the upper front plate 62 are an example of an "extension piece," and the lower end plate 80 and the lower front plate 82 are an example of an "extension piece."

[0044] (Second Example) A packaging container 210 of this embodiment will be described. Note that a description of configurations common to the packaging container 10 may be omitted. As shown in FIG. 6, the packaging container 210 in a packaged state packages the object X in a state exposed to the outside of the packaging container 210, similar to the packaging container 10. As shown in FIG. 8, the packaging container 210 is produced by folding a plurality of fold lines provided on a single flat plate-like deployable body BL2. Note that FIG. 8 is a view of the deployable body BL2 as seen from the front. For this reason, the left-right direction in FIG. 8 coincides with that in FIG. 6 and FIG. 7.

[0045] The packaging container 210 includes a back plate 212, a pair of side portions 214, 216, an upper end portion 218, and a lower end portion 220. The back plate 212 has a flat plate shape. The side portions 214, 216, the upper end portion 218, and the lower end portion 220 are each formed by bending a flat plate.

[0046] The back plate 212 is disposed at the rear end of the packaging container 10. The back plate 212 has a rectangular shape. The side portion 214 is connected to the left edge of the back plate 212 via a folding line 222. The side portion 214 includes a side plate 230 and an inclined plate 232 similar to the side plate 30 and the inclined plate 32 of the side portion 14. The side plate 230 is rotatably connected to the back plate 212 via the folding line 222. The inclined plate 232 is rotatably connected to the side plate 230 via a folding line 224. However, no configuration similar to the engagement piece 36 is provided on an edge 232a of the inclined plate 232 opposite to the side plate 230.

[0047] The side portion 214 further includes a fixing portion 238 connected to the edge 232a via a folding line 223a. The fixing portion 238 includes a connecting piece 238a and a fixing piece 238b. The connecting piece 238a extends over the entire length of the edge 232a in the vertical direction. The connecting piece 238a connects the inclined plate 232 and the fixing piece 238b. The connecting piece 238a is connected to the fixing piece 238b via a folding line 223b at the edge opposite the inclined plate 232. The fixing piece 238b extends over the entire length of the inclined plate 232 at the edge opposite the inclined plate 232. An adhesive is applied to the fixing piece 238b over the entire length of the surface that contacts the back plate 212. In the development view, the area where the adhesive is applied is indicated by thin lines in a lattice pattern.

[0048] The side portion 216 is connected to the right edge of the back panel 212 via a folding line 226. The side portion 216 includes a side panel 240, an inclined panel 242, and a fixing portion 248. The side panel 240, the inclined panel 242, and the fixing portion 248 each have a shape symmetrical to the side panel 230, the inclined panel 232, and the fixing portion 238, respectively. The side panel 240 is rotatably connected to the back panel 212 via the folding line 226. The inclined panel 242 is rotatably connected to the side panel 240 via the folding line 228. The fixing portion 248 includes a connecting piece 248a and a fixing piece 248b that are arranged symmetrically to the connecting piece 238a and the fixing piece 238b of the fixing portion 238, respectively. An adhesive is arranged on the entire surface of the fixing piece 248b that contacts the fixing piece 238b.

[0049] At the boundary between the side plate 230 and the inclined plate 232, two through holes 234, 234 are formed that open onto the fold line 224 at the front end in the packaged state when the fold line 224 is folded. The through holes 234 are formed in the deployable body BL2 as elongated holes that penetrate the deployable body BL2. At the boundary between the side plate 240 and the inclined plate 242, a through hole 244 similar to the through hole 234 is arranged.

[0050] An upper end portion 218 is connected to the upper edge of the back plate 212. The upper end portion 218 has a configuration similar to that of the upper end portion 18. The upper end portion 218 includes an upper end plate 60, an upper front plate 62, a pair of insertion pieces 64, 64, a pair of through pieces 65, 65, and an upper end plate 260 similar to the header plates 66, 68, an upper front plate 262, a pair of insertion pieces 264, 264, a pair of through pieces 265, 265, and header plates 266, 268.

[0051] A lower end portion 220 is connected to the lower edge of the back plate 212. The lower end portion 220 has a similar configuration to the lower end portion 20. The lower end portion 220 includes a lower end plate 80, a lower front plate 82, a lower end plate 280 similar to the pair of insert pieces 85, 85, a lower front plate 282, and a pair of insert pieces 285, 285. The lower end portion 220 does not have a configuration corresponding to the pair of insert pieces 84, 84.

[0052] (Method of assembling the packaging container from the deployed body) Next, a method of assembling the packaging container 210 from the unfolded body BL2 will be described with reference to Figures 8 to 11. At the folding line 224, the inclined plate 232 is folded relative to the side plate 230, and the inclined plate 232 is overlapped on the front surface of the side plate 230. The fixing piece 238b is adhered to the back plate 212 with an adhesive. Next, at the folding line 228, the inclined plate 242 is folded relative to the side plate 240, and the inclined plate 242 is overlapped on the front surface of the side plate 240. The fixing piece 248b is adhered to the front surface of the fixing piece 238b with an adhesive. The state of Figure 9 is the unfolded state of the packaging container 210.

[0053] 10, the connecting piece 238a is rotated relative to the fixed piece 238b and the inclined plate 232, and the folding lines 223a, 223b are bent so that the connecting piece 238a is disposed in front of the fixed piece 238b. The connecting piece 238a is disposed with a gap between it and the fixed piece 238b and the inclined plate 232. Similarly, the connecting piece 248a is rotated relative to the fixed piece 248b and the inclined plate 242, and the connecting piece 248a is bent so that it is disposed in front of the fixed piece 248b.

[0054] 10, the upper end 218 and the lower end 220 are moved relative to the side portions 214, 216 to transform the packaging container 210 into the wrapped state. The object X is stored in the packaging container 210 while the packaging container 210 is being transformed into the wrapped state.

[0055] Specifically, the lower end plate 280 of the lower end portion 220 is folded forward relative to the back plate 212 at the folding line 274. Next, the lower front plate 282 is folded upward relative to the lower end plate 280 at the folding line 278. At this time, the left insertion piece 285 is inserted into the through hole 234, and the right insertion piece 285 is inserted into the through hole 244. This positions the lower front plate 282 relative to the back plate 212 and the side portions 214, 216.

[0056] Also, the upper end 218 is bent in the same manner as the upper end 18. That is, the header plate 268 is bent forward relative to the header plate 266, and overlapped on the front surface of the header plate 266. Furthermore, the upper end plate 260 is bent forward relative to the header plate 268, and the left insertion piece 264 is inserted between the side plate 230 and the inclined plate 232, and the right insertion piece 264 is inserted between the side plate 240 and the inclined plate 242. The timing is not particularly limited, but the object X may be placed in the storage space 290 (see FIG. 7) defined by the inclined plates 232, 242 at this timing. Next, the upper front plate 262 is bent downward relative to the upper end plate 260, and the left through-piece 265 is inserted into the through-hole 234, and the right through-piece 265 is inserted into the through-hole 244. In this way, the packaging container 210 in the packaged state is assembled. In the packaging container 210, the packaging container 210 in the packaged state is assembled without using any processing or work other than the assembly of the deployment body BL2 from the deployed state, such as adhesive.

[0057] The packaging container 210 also provides the same effects as the packaging container 10. Furthermore, by fixing the fixing pieces 238b, 248b to the back plate 212, the movement of the inclined plates 232, 242 can be restricted.

[0058] (Correspondence) Each of the upper end portion 220 and the lower end portion 230 is an example of a "positioning portion." The upper end plate 260 and the upper front plate 262 are an example of an "extension piece," and the lower end plate 280 and the lower front plate 282 are an example of an "extension piece."

[0059] (Third Example) A packaging container 310 of this embodiment will be described. Note that a description of configurations common to the packaging container 210 may be omitted. As shown in FIG. 12, the packaging container 310 in a packaging state packages the object X in a state exposed to the outside of the packaging container 310, similar to the packaging containers 10 and 210. As shown in FIG. 14, the packaging container 310 is produced by folding a plurality of fold lines provided on a single flat plate-like deployable body BL3. Note that FIG. 14 is a view of the deployable body BL3 as seen from the rear. For this reason, the left-right direction in FIG. 14 is opposite to that in FIG. 12 and FIG. 13.

[0060] The packaging container 310 includes a back plate 312, a pair of side portions 314, 316, an upper end portion 318, and a lower end portion 320. The back plate 312 has a flat plate shape. The side portions 314, 316, the upper end portion 318, and the lower end portion 320 are each formed by bending a flat plate.

[0061] The back plate 312 is disposed at the rear end of the packaging container 310. The back plate 312 has a rectangular shape. The side portion 314 is connected to the left edge of the back plate 312 via a folding line 322. The side portion 314 includes a side plate 330 and an inclined plate 332 similar to the side plate 230 and the inclined plate 232 of the side portion 214. The side plate 330 is rotatably connected to the back plate 312 via the folding line 322. The inclined plate 332 is rotatably connected to the side plate 330 via a folding line 324.

[0062] The side portion 314 further includes a fixing portion 338 connected to the inclined plate 332 via a folding line 323a. The fixing portion 338 includes a connecting piece 338a and a fixing piece 338b. The connecting piece 338a is disposed at the center of the edge 332a in the vertical direction. The connecting piece 338a connects the inclined plate 332 and the fixing piece 338b. The connecting piece 338a is connected to the fixing piece 338b via a folding line 323b at the edge opposite the inclined plate 332. A slit is formed in the folding line 323b. The fixing piece 338b extends over the entire vertical length of the edge of the connecting piece 338a opposite the inclined plate 332. An adhesive is disposed on the entire surface of the fixing piece 338b that contacts the back plate 312.

[0063] The side portion 316 is connected to the right edge of the back panel 312 via a folding line 326. The side portion 316 includes a side panel 340, an inclined panel 342, and a fixing portion 348. The side panel 340 and the inclined panel 342 are symmetrical to the side panel 330 and the inclined panel 332. The side panel 340 is rotatably connected to the back panel 312 via a folding line 326. The inclined panel 342 is rotatably connected to the side panel 340 via a folding line 328. The fixing portion 348 includes a pair of connecting pieces 348a, 348a and a pair of fixing pieces 348b, 348b, which sandwich the connecting piece 338a and the fixing piece 338b of the fixing portion 338 in the vertical direction. An adhesive is applied to the entire surface of the fixing piece 348b that contacts the back panel 312. A slit is formed in the bend line between the connecting piece 348a and the fixing piece 348b.

[0064] The inclined plate 332 has through holes 334 and 336 disposed therethrough. The through hole 334 is disposed near the upper end of the inclined plate 332. The through hole 334 is closed by a flap 334a. The flap 334a is rotatably connected to the inclined plate 332 at a fold line 334b ​​at the upper edge of the through hole 334. The through hole 336 is disposed near the lower end of the inclined plate 332. The through hole 336 is closed by a flap 336a. The flap 336a is rotatably connected to the inclined plate 332 at a fold line 336b at the lower edge of the through hole 336.

[0065] In the inclined plate 342, through-holes 344, 346 penetrating the inclined plate 342 are arranged symmetrically with respect to the through-holes 334, 336, respectively. The through-hole 344 has the same shape and configuration as the through-hole 334. That is, the through-hole 344 is closed by a rotatable flap 344a at a fold line 344b on the upper edge of the through-hole 344. The through-hole 346 has the same shape and configuration as the through-hole 336. That is, the through-hole 346 is closed by a rotatable flap 346a at a fold line 346b on the lower edge of the through-hole 346.

[0066] Of the pair of connecting pieces 348a, 348a, the lower connecting piece 348a has a notch 348c that is continuous with the through hole 346. The notch 348c passes through the connecting piece 348a. It extends through the notch 348c to the fixed piece 348b.

[0067] An upper end portion 318 is connected to the upper edge of the back plate 312. The upper end portion 318 comprises an upper end plate 360 ​​similar to the upper end plate 260, an upper front plate 262, a pair of insertion pieces 264, 264, and header plates 266, 268, an upper front plate 362, a pair of insertion pieces 364, 364, and header plates 366, 368. The upper end portion 318 further comprises a pair of through pieces 365, 365 connected to the edge of the upper front plate 362 opposite the upper end plate 360 ​​via bending lines 362a, 362a. The pair of through pieces 365, 365 are spaced apart from each other in the left-right direction. The header plates 366, 368 have

[0068] A lower end portion 320 is connected to the lower edge of the back plate 312. The lower end portion 320 includes a lower end plate 80, a lower front plate 82, a lower end plate 380 similar to the pair of insert pieces 84, 84, a lower front plate 382, ​​and a pair of insert pieces 384, 384. The lower end portion 320 further includes an insert piece 385 connected to the edge of the lower front plate 382 opposite to the lower end plate 380 via a folding line 382a. As shown in FIG. 13, the insert piece 385 has edges 385b, 385b along the inclination of the inclined plates 332, 342 of the packaging container 310 in the packaged state. The insert piece 385 extends from the edges 385b, 385b in the center in the left-right direction in a direction away from the lower front plate 382. An opening 385a into which the object X is inserted is arranged in the insert piece 385.

[0069] (Method of assembling the packaging container from the deployed body) Next, a method of assembling the packaging container 310 from the unfolded body BL3 will be described with reference to Figs. 14 to 18. At the folding line 324, the inclined plate 332 is folded relative to the side plate 330, and the inclined plate 332 is placed on the front surface of the side plate 330. The fixing piece 338b is adhered to the back plate 312 by an adhesive. Next, at the folding line 328, the inclined plate 342 is folded relative to the side plate 340, and the inclined plate 342 is placed on the front surface of the side plate 340. The fixing piece 348b is disposed spaced apart from each other in the up-down direction of the pair of fixing pieces 338b. The pair of fixing pieces 338b are adhered to the back plate 312 by an adhesive. The state of Fig. 15 is the unfolded state of the packaging container 310.

[0070] 15, the connecting piece 338a is rotated relative to the fixed piece 338b and the inclined plate 332, and is bent so that the connecting piece 338a is disposed in front of the fixed piece 338b. The connecting piece 338a is disposed with a gap between it and the fixed piece 338b and the inclined plate 332. Similarly, the connecting piece 348a is rotated relative to the fixed piece 348b and the inclined plate 342, and is bent so that the connecting piece 248a is disposed in front of the fixed piece 248b.

[0071] 17, the upper end 318 and the lower end 320 are moved relative to the side portions 314, 316 to transform the packaging container 310 into the wrapped state. The object X is stored in the packaging container 310 while the packaging container 310 is being transformed into the wrapped state.

[0072] Specifically, the lower end plate 380 of the lower end portion 320 is bent forward relative to the back plate 312. At this time, the left insertion piece 384 is inserted between the side plate 330 and the inclined plate 332, and the right insertion piece 384 is inserted between the side plate 340 and the inclined plate 342. As a result, the side plate 340 and the inclined plate 342 are positioned relative to the back plate 312. Next, the lower front plate 382 is bent upward relative to the lower end plate 380. At this time, the insertion piece 385 is inserted into the through holes 336, 346. The insertion piece 385 passes through the through hole 346 and is inserted into the notch 348c. As a result, the lower front plate 382 is positioned relative to the back plate 312 and the side portions 314, 316.

[0073] Also, the upper end 318 is bent in the same manner as the upper end 218. That is, the header plate 368 is bent forward relative to the header plate 366, and overlapped on the front surface of the header plate 366. Furthermore, the upper end plate 360 ​​is bent forward relative to the header plate 368, and the left insertion piece 364 is inserted between the side plate 230 and the inclined plate 232, and the right insertion piece 364 is inserted between the side plate 340 and the inclined plate 342. Although the timing is not particularly limited, at this timing, the object X may be inserted into the opening 385a and placed in the storage space 390 (see FIG. 7) defined by the inclined plates 332, 342. Next, the upper front plate 362 is bent downward relative to the upper end plate 360, and the left through-piece 365 is inserted into the through-hole 334, and the right through-piece 365 is inserted into the through-hole 344. In this way, the packaging container 310 in the packaged state is assembled. In the packaging container 310, the packaging container 210 in the packaged state is assembled from the unfolded state without using any processing or work other than the assembly of the unfolded body BL3 such as adhesive.

[0074] The packaging container 310 also provides the same effects as the packaging container 210. Furthermore, by inserting the object X into the opening 385a, the object X can be prevented from rattling within the storage space 390.

[0075] (Correspondence) Each of upper end portion 320 and lower end portion 330 is an example of a "positioning portion." Upper end plate 360 ​​and upper front plate 362 are an example of an "extension piece," and lower end plate 380 and lower front plate 382 are an example of an "extension piece."

[0076] Although the embodiments of the present invention have been described in detail above, 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 exemplified above.

[0077] For example, the packaging container 10 may not have the header plates 66, 68. In this case, the back plate 12 and the upper end plate 60 may be directly connected via a folding line. The same may be true for the packaging containers 210, 310.

[0078] The packaging container 10 may not have at least one of the upper front plate 62 and the lower front plate 82. The same may be true for the packaging containers 210 and 310. For example, the upper front plate 362 may not be provided in the packaging container 310. Since the object X is inserted into the opening 385a, it is possible to prevent the object X from falling out of the storage space 390.

[0079] In addition, the technical elements described in this specification or drawings exert technical utility alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technologies exemplified in this specification or drawings achieve multiple objectives simultaneously, and achieving one of those objectives is itself technically useful. [Explanation of symbols]

[0080] 10, 210, 310: packaging container, 12, 212, 312: back plate, 14, 214, 314, 16, 216, 316: side, 18, 218, 318: upper end, 20, 220, 320: lower end, 30, 230, 330, 40, 240, 340: side plate, 32, 232, 332, 42, 242, 342: inclined plate, 60, 260, 360: upper end plate, 62, 262, 362: upper front plate, 80, 280, 380: lower end plate, 82, 282, 382: lower front plate

Claims

1. A packaging container that transforms from an unfolded state to a packaged state, The back panel and a first side portion including a first side plate extending forward from the back plate in the packaged state, and a first inclined plate connected to the first side plate at a position spaced forward from the back plate and inclined toward the back plate; a second side portion including a second side plate extending forward from the back plate in the packaged state and facing the first side plate with the back plate therebetween, and a second inclined plate connected to the second side plate at a position spaced forward from the back plate and inclined toward the back plate; a positioning portion that positions the first side portion and the second side portion relative to the back plate in the packaged state, In the deployed state, the first side plate and the second side plate are rotatable with respect to the back plate independently of each other, The positioning portion is connected to the back plate, the first side portion, and the second side portion in the packaged state, In the packaged state, a storage space for storing an object to be packaged is formed between the first inclined plate and the second inclined plate, A packaging container, wherein the first inclined plate and the second inclined plate regulate the object from moving beyond the first inclined plate and the second inclined plate toward the back plate.

2. The packaging container of claim 1, wherein the positioning portion, in the packaged state, comprises: an extension piece extending forward from the back plate; a first penetrating piece extending from the extension piece and penetrating the first side portion; and a second penetrating piece extending from the extension piece and penetrating the second side portion.

3. The packaging container according to claim 2 , wherein in the packaged state, the extension piece covers a front portion of the storage space.

4. In the packaged state, The first penetrating piece penetrates the first side portion from a front side of the first side portion, The packaging container according to claim 3 , wherein the second penetration piece penetrates the second side portion from a front side of the second side portion.

5. The packaging container according to claim 1 , further comprising a fixing piece extending from the first inclined plate and fixed to the back plate.

6. The packaging container according to claim 1 , wherein in the packaged state, the first inclined plate and the second inclined plate are engaged with each other.

7. A deployable body which is composed of a single flat plate and which can assemble the packaging container according to any one of claims 1 to 4.

Images