Packaging member

Abstract

To provide a packaging member capable of acquiring a suitable cushioning effect by a constitution in which positional deviation between two packaging materials is suppressed.SOLUTION: A packaging member 1 includes a first packaging material 10 and a second packaging material 20. The first packaging material 10 is formed in a tubular shape extending in a first direction D1, and has a storage region of an object to be packaged inside. The second packaging material 20 is formed in a U-shape when viewed from the first direction D1, and has a storage region of the first packaging material 10 inside. The second packaging material 20 includes: a pair of side wall parts 22 oppositely arranged in a second direction D2 orthogonal to the first direction D1; and recessed parts 24, 25 formed at upper edge parts of the pair of side wall parts 22, and recessed downward. The first packaging material 10 includes protrusion parts 14, 15 oppositely arranged from the recessed parts 24, 25, and inserted in the recessed parts 24, 25.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a packaging member. [Background technology]

[0002] Conventionally, packaging materials formed into a predetermined three-dimensional shape by folding a single sheet material (blank) made of, for example, corrugated cardboard have been widely used. Such packaging materials maintain their three-dimensional shape by combining protrusions, holes, slits, notches, etc.

[0003] For example, in the conventional packaging material disclosed in Patent Document 1, the packed item is a long member, and buffer sections are arranged on both longitudinal ends of the member. The packaging material, including the storage section for the packed item and the buffer sections, is formed by folding a single sheet. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-100430 Summary of the Invention [Problem to be solved by the invention]

[0005] When packaging items in a packaging member, the items are sometimes placed in two packaging materials in order, i.e., the packaging materials are doubled to enhance protection of the packaged items. For example, the first packaging material is a film-like packaging material intended to protect the packaged items from dust and other particles, and the second packaging material is a cardboard packaging material intended to provide cushioning. With such packaging members, there is a problem in that the first packaging material containing the packaged items moves inside the second packaging material, causing misalignment between the two packaging materials. This raises concerns that an appropriate cushioning effect cannot be achieved and the packaged items will not be adequately protected.

[0006] The present invention has been made in consideration of the above points, and aims to provide a packaging member that can achieve a suitable cushioning effect by suppressing misalignment between two packaging materials. [Means for solving the problem]

[0007] In order to solve the above problems, the packaging member of the present invention comprises a first packaging material and a second packaging material. The first packaging material is formed in a tubular shape extending in a first direction and has an internal storage area for the packaged item. The second packaging material is formed in a U-shape when viewed from the first direction and has an internal storage area for the first packaging material. The second packaging material has a pair of side walls arranged opposite each other in a second direction perpendicular to the first direction, and a recess formed in an upper edge of at least one of the pair of side walls and recessed downward. The first packaging material has a protrusion arranged opposite the recess and inserted into the recess. [Effects of the Invention]

[0008] According to the configuration of the present invention, by inserting the convex portion of the first packaging material into the concave portion of the second packaging material, it is possible to prevent the first packaging material containing the packaged item from moving inside the second packaging material. In other words, it is possible to prevent misalignment between the two packaging materials. Therefore, the packaging member can obtain a favorable cushioning effect by having a configuration in which misalignment between the two packaging materials is prevented. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view of a packaging member according to an embodiment of the present invention. [Figure 2] 2 is a perspective view of a first packaging material of the packaging member of FIG. 1. FIG. [Figure 3] FIG. 3 is a perspective view of the first packaging material (unfolded state) of FIG. 2. [Figure 4] FIG. 3 is a development view of the first packaging material of FIG. 2. [Figure 5] FIG. 2 is a partially enlarged perspective view of the packaging member of FIG. [Figure 6] FIG. 10 is a partially enlarged perspective view of a packaging member according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following. In this description, the direction indicated by the arrow D1 in the drawings is the "first direction" (the longitudinal direction of the packaging member 1), and the direction indicated by the arrow D2 is the "second direction" (the lateral direction of the packaging member 1). The first direction D1 and the second direction D2 are perpendicular to each other.

[0011] Fig. 1 is a perspective view of a packaging member 1 of an embodiment. Fig. 2 is a perspective view of a first packaging material 10 of the packaging member 1 of Fig. 1. Fig. 3 is a perspective view of the first packaging material 10 (unfolded state) of Fig. 2. Fig. 4 is an unfolded view of the first packaging material 10 of Fig. 2.

[0012] 1, the packaging member 1 has a substantially rectangular parallelepiped outer shape and extends longitudinally along a first direction D1. The packaging member 1 includes a first packaging material 10 and a second packaging material 20.

[0013] 2, the first packaging material 10 is formed in a tubular shape extending in a first direction D1. In other words, the first packaging material 10 is formed in a rectangular tubular shape extending in the first direction D1. The first packaging material 10 has an accommodation area S1 for the packaged item P therein.

[0014] When the first packaging material 10 is unfolded, it is in the state shown in Figures 3 and 4. The first packaging material 10 is a single sheet material (blank) that has a substantially rectangular outer shape when unfolded flat, and is made of, for example, cardboard or polyethylene terephthalate (PET) film. That is, the first packaging material 10 is formed by folding a single sheet material.

[0015] The first packaging material 10 has a bottom portion 11, a top portion 12, and a pair of sidewall portions 13.

[0016] The bottom 11 is disposed approximately in the center of the short side direction (the vertical direction in FIG. 4) of the first packaging material 10, which is a sheet material in a flat state. The bottom 11 has a rectangular shape in a plan view extending in a first direction D1 (the horizontal direction in FIG. 4) when viewed from the vertical direction. The bottom 11 is disposed at the lower end of the first packaging material 10 in the assembled state shown in FIG. 2, and is disposed opposite the top 12 in the vertical direction, with the storage area S1 sandwiched between them. The bottom 11 is divided into two parts in the first direction D1, separated by a gap 11a provided in the middle of the first direction D1.

[0017] The top portions 12 are arranged at the upper and lower ends of the short side direction (vertical direction in FIG. 4) of the first packaging material 10, which is a flat sheet material. The top portions 12 are rectangular in plan view and extend in a first direction D1 (horizontal direction in FIG. 4) when viewed from the vertical direction. The top portion 12 is arranged at the upper end of the first packaging material 10 in the assembled state shown in FIG. 2, and is arranged opposite the bottom portion 11 in the vertical direction, with the storage area S1 sandwiched between them. Note that, in the assembled state shown in FIG. 2, the top portion 12 is configured such that the rectangular portion of the sheet material in plan view is doubled in the vertical direction.

[0018] The pair of side walls 13 are arranged on both outer sides in the short side direction (vertical direction in FIG. 4) of the first packaging material 10 made of a flat sheet material, sandwiching the bottom 11. The pair of side walls 13 are formed by folding upward from the peripheral edge (fold line 11f) of the bottom 11. More specifically, the pair of side walls 13 are formed by folding upward the packaging member 1 made of a sheet material along two fold lines 11f that are spaced apart in the short side direction and extend in the first direction D1, sandwiching the bottom 11 therebetween.

[0019] In other words, the pair of side walls 13 are formed by bending both end portions of the bottom 11 in the second direction D2. The pair of side walls 13 are disposed opposite each other in the second direction D2. Furthermore, each of the pair of side walls 13 extends in the first direction D1 and the up-down direction in the first packaging material 10 in the assembled state shown in FIG.

[0020] The upper ends of the pair of side walls 13 are connected to a top 12. The top 12 is formed by folding vertically laterally along a fold line 13f that extends in the first direction D1 and is located at the boundary between the side walls 13. The top 12 is formed in a flat plate shape that extends in the first direction D1 and the second direction D2. More specifically, at the upper end of the first packaging material 10, a portion (top 12) that is connected to one of the pair of side walls 13 and has a rectangular flat plate shape in plan view, and another portion (top 12) that is connected to the other of the pair of side walls 13 are doubled up and down.

[0021] 1, the second packaging material 20 is formed in a substantially U-shape when viewed from the first direction D1. The second packaging material 20 has an accommodation area S2 for the first packaging material 10 therein.

[0022] Although not shown, the second packaging material 20 is made of a single sheet material when unfolded. The second packaging material 20 is a single sheet material (blank) that has a substantially rectangular outer shape when unfolded flat, and is made of, for example, cardboard. That is, the second packaging material 20 is formed by folding a single sheet material.

[0023] The second packaging material 20 has a bottom portion 21, a pair of side wall portions 22, and a pair of buffer portions 23.

[0024] The bottom portion 21 has a rectangular shape in plan view that extends long in the first direction D1 when viewed from the top-bottom direction. A pair of sidewall portions 22 are connected to both ends of the bottom portion 21 in the second direction D2.

[0025] The pair of side walls 22 are arranged opposite both ends of the second packaging material 20 in the second direction D2, with the storage area S2 sandwiched between them. Each of the pair of side walls 22 has a rectangular shape extending long in the first direction D1 when viewed from the opposing direction (the second direction D2). The pair of side walls 22 are formed by folding upward from the peripheral edges (both ends in the second direction D2) of the bottom 21. More specifically, the pair of side walls 22 are formed by folding upward the second packaging material 20, which is a flat sheet material, along two fold lines that are spaced apart in the second direction D2 and extend in the first direction D1, sandwiching the bottom 21 therebetween.

[0026] The pair of buffer sections 23 are arranged opposite both ends in the first direction D1 of the second packaging material 20, with the storage area S2 sandwiched between them. The pair of buffer sections 23 are formed by folding both ends in the first direction D1 of the second packaging material 20, which is a sheet material in a flat state.

[0027] Next, a detailed configuration of the packaging member 1 will be described using Fig. 5 in addition to Fig. 1, Fig. 2, Fig. 3, and Fig. 4. Fig. 5 is a partially enlarged perspective view of the packaging member 1 of Fig. 1. Fig. 5 is an enlarged view of the central part of the packaging member 1 of Fig. 1 in the first direction D1.

[0028] The second packaging material 20 has recesses 24 and 25. The recesses 24 and 25 are located on the upper edge of each of the pair of side wall portions 22, and are positioned in the center of the second packaging material 20 in the first direction D1. The recesses 24 and 25 are recessed downward from the upper edge of the side wall portion 22. The recesses 24 and 25 have a rectangular shape extending in the first direction D1 when viewed from the second direction D2, and penetrate the side wall portion 22 in the second direction D2.

[0029] The first packaging material 10 has protrusions 14, 15. The protrusions 14, 15 are arranged to face the recesses 24, 25 of the second packaging material 20 in the assembled packaging member 1 shown in FIG. 5 . That is, the protrusions 14, 15 are arranged on the upper edge of each of the pair of side wall portions 13, in the center of the first packaging material 10 in the first direction D1. The number of protrusions 14, 15 is the same as the number of recesses 24, 25. The protrusions 14, 15 are rectangular extending in the first direction D1 when viewed from the top-bottom direction, and protrude toward the outside of each of the pair of side wall portions 13 (outside in the second direction D2). The protrusions 14 are inserted into the recesses 24, and the protrusions 15 are inserted into the recesses 25.

[0030] According to the above configuration, by inserting the convex portions 14, 15 of the first packaging material 10 into the concave portions 24, 25 of the second packaging material 20, it is possible to prevent the first packaging material 10 containing the packaged item P from moving inside the second packaging material 20. In other words, it is possible to prevent misalignment between the two packaging materials (the first packaging material 10, the second packaging material 20). Therefore, the packaging member 1 can obtain a favorable cushioning effect due to a configuration in which misalignment between the two packaging materials is prevented.

[0031] Furthermore, since the convex portions 14, 15 and the concave portions 24, 25 are respectively arranged at the upper edge portions of the first packaging material 10 and the second packaging material 20, mistakes in the vertical arrangement of the first packaging material 10 relative to the second packaging material 20 can be prevented.

[0032] The first packaging material 10 also has a tongue portion 16 and a hole portion 17 (see FIGS. 3 and 4).

[0033] The tongue portion 16 protrudes outward from the periphery of the first packaging material 10, which is a flat sheet material. More specifically, the tongue portion 16 protrudes further upward (outward) from the top portion 12, which is located at the upper end of the first packaging material 10 in the short side direction (the up-and-down direction in FIG. 4). The tongue portion 16 is located in the center of the first packaging material 10 in the first direction D1. The tongue portion 16 is located on the periphery of the top portion 12, and is folded in the second direction D2 at a fold line 12f extending in the first direction D1.

[0034] The hole 17 is arranged along the fold line 13f located at the boundary between the top 12, which is located at the lower end of the first packaging material 10 in the short side direction (the vertical direction in FIG. 4), and the side wall 13, and extends in the first direction D1. The hole 17 is arranged in the center of the first packaging material 10 in the first direction D1, and penetrates the sheet material in the thickness direction. When the first packaging material 10 is formed into a tubular shape in the assembled state, the hole 17 overlaps with the tongue portion 16, and the folded tongue portion 16 is inserted into the hole 17. This allows the first packaging material 10 to maintain its three-dimensional tubular shape (rectangular cylindrical shape).

[0035] As shown in Fig. 4, the protrusion 14 is disposed inside the tongue portion 16 in the first direction D1. More specifically, the protrusion 14 is disposed in the center of the tongue portion 16 in the first direction D1. The protrusion 14 protrudes outward from the folding line 12f (upward in the up-down direction in Fig. 4). In other words, the protrusion 14 protrudes outward from the folding line 12f in the second direction D2.

[0036] According to the above configuration, the protrusions 14 can be arranged inside the tongue portions 16 of the first packaging material 10 made of sheet material. The tongue portions 16 are necessary for holding the first packaging material 10 in a tubular (rectangular cylindrical) shape, and there is no need to provide a new portion that protrudes outward for the protrusions 14. In other words, even if the protrusions 14 are provided, the area of ​​the first packaging material 10 made of sheet material in a flat state does not change, making it possible to suppress an increase in the amount of material used.

[0037] Furthermore, the protrusion 14 protrudes outward in the second direction D2 parallel to the apex 12. That is, when the tongue portion 16 is bent at the fold line 12f, the protrusion 14 is not bent. This reduces the bending area of ​​the tongue portion 16 in the first direction D1, making it easier to bend the tongue portion 16.

[0038] It is sufficient that the packaging member 1 has at least one set of recesses 24, 25 and protrusions 14, 15. In other words, it is sufficient that one recess 24, 25 is formed on the upper edge portion of at least one of the pair of side wall portions 22. It is sufficient that one protrusion 14, 15 is formed on the upper edge portion of at least one of the pair of side wall portions 13.

[0039] 5, in the packaging member 1, the pair of the recessed portion 24 and the protruding portion 14 and the pair of the recessed portion 25 and the protruding portion 15 have different lengths in the first direction D1. Specifically, the length L1 of the pair of the recessed portion 24 and the protruding portion 14 is shorter than the length L2 of the pair of the recessed portion 25 and the protruding portion 15 in the first direction D1.

[0040] According to the above configuration, the convex portion 15 cannot be inserted into the concave portion 24. That is, it is possible to prevent mistakes in the arrangement of the first packaging material 10 relative to the second packaging material 20 in the second direction D2. In other words, it is possible to prevent mistakes in the arrangement of the front and back sides of the first packaging material 10 relative to the second packaging material 20 as viewed in the second direction D2. Therefore, in the packaging member 1, the first packaging material 10 can be properly arranged relative to the second packaging material 20, and a suitable cushioning effect can be obtained.

[0041] Furthermore, in the packaging member 1, the pair of recessed portion 24 and protruding portion 14 and the pair of recessed portion 25 and protruding portion 15 each have a different length in the first direction D1 depending on the type of packaged item P. This configuration makes it possible to prevent a packaging member 1 appropriate for the type of packaged item P from being mistaken for another inappropriate packaging member. In other words, by using a packaging member 1 appropriate for the type of packaged item P, it is possible to obtain a suitable cushioning effect.

[0042] Next, the configuration of a modified example of the packaging member 1 will be described with reference to Fig. 6. Fig. 6 is a partially enlarged perspective view of the modified example of the packaging member 1.

[0043] As shown in Fig. 6, the packaging member 1 of the modified example has recessed portions 24, 28 and protruding portions 14, 18. Specifically, the second packaging material 20 has recessed portions 24, 28. The first packaging material 10 has protruding portions 14, 18. The protruding portion 14 is inserted into the recessed portion 24, and the protruding portion 18 is inserted into the recessed portion 28.

[0044] In the packaging member 1, the pair of the recessed portion 24 and the protruding portion 14 and the pair of the recessed portion 28 and the protruding portion 18 are located at different positions in the first direction D1. Specifically, the pair of the recessed portion 24 and the protruding portion 14 is located in the central portion of the packaging member 1, and the pair of the recessed portion 28 and the protruding portion 18 is located outside the central portion of the packaging member 1, in the first direction D1.

[0045] According to the above configuration, the protrusion 18 cannot be inserted into the recess 24. Furthermore, the protrusion 14 cannot be inserted into the recess 28. That is, it is possible to prevent errors in the arrangement of the first packaging material 10 relative to the second packaging material 20 in the second direction D2. In other words, it is possible to prevent errors in the arrangement of the front and back sides of the first packaging material 10 relative to the second packaging material 20 as viewed in the second direction D2. Therefore, in the packaging member 1, the first packaging material 10 can be properly arranged relative to the second packaging material 20, and a suitable cushioning effect can be obtained.

[0046] Furthermore, in the packaging member 1, the pairs of recessed portions 24 and protruding portions 14 and the pairs of recessed portions 28 and protruding portions 18 are positioned differently in the first direction D1 depending on the type of packaged item P. This configuration makes it possible to prevent a packaging member 1 appropriate for the type of packaged item P from being mistaken for another inappropriate packaging member. In other words, by using a packaging member 1 appropriate for the type of packaged item P, it is possible to obtain a suitable cushioning effect.

[0047] Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these, and various modifications can be made without departing from the spirit of the invention. [Industrial Applicability]

[0048] The present invention can be used in a packaging member that is placed inside a packaging box that contains an item to be packaged. [Explanation of symbols]

[0049] 1 Packaging materials 10 1st packaging material 11 Bottom 12 Top 12f fold line 13 Side wall 14, 15, 18 Convex parts 16 Tongue part 17 Hole 18 Convex part 20 Second packaging material 21 Bottom 22 Side wall 24, 25, 28 recesses D1 1st direction D2 2nd direction

Claims

1. a first packaging material formed in a tubular shape extending in a first direction and having an area for accommodating an item to be packaged therein; a second packaging material formed in a U-shape when viewed from the first direction and having an internal storage area for the first packaging material; Equipped with The second packaging material is a pair of sidewall portions disposed opposite to each other in a second direction perpendicular to the first direction; a recess formed in an upper edge portion of at least one of the pair of side wall portions and recessed downward; and The first packaging material has a protrusion disposed opposite the recess and inserted into the recess.

2. the second packaging material has a plurality of recesses formed in each of the pair of side wall portions, the first packaging material has a plurality of protrusions, the number of which is the same as the number of the recesses, and which are inserted into the plurality of recesses, respectively; The packaging member according to claim 1 , wherein each of the plurality of sets of recesses and protrusions has a different length in the first direction.

3. the second packaging material has a plurality of recesses formed in each of the pair of side wall portions, the first packaging material has a plurality of protrusions, the number of which is the same as the number of the recesses, and which are inserted into the plurality of recesses, respectively; The packaging member according to claim 1 , wherein each of the plurality of sets of the recessed portion and the protruding portion is located at a different position in the first direction.

4. 4. The packaging member according to claim 2, wherein each of the plurality of sets of recesses and protrusions has a different length or position in the first direction depending on the type of the packaged item.

5. The first packaging material is formed by folding a single sheet material, a tongue portion that protrudes outward from the peripheral edge of the sheet material and is bent along a fold line located on the peripheral edge; a hole into which the bent tongue portion is inserted when the tube is formed; and The packaging member according to claim 1 , wherein the protrusion is disposed inside the tongue portion in the first direction and protrudes outward from the folding line.

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