Packaging member

Abstract

To provide a packaging member capable of improving buffer effect with a configuration that achieves low cost.SOLUTION: A packaging member 1 has a storage area S formed by folding a single sheet material, and includes a bottom 2, a pair of side wall portions 3, and a pair of buffer portions 4. The pair of side wall portions 3 are formed by folding upward from the periphery of the bottom 2, and are arranged opposite each other in a first direction D1, with the storage area S sandwiched therebetween. The pair of buffer portions 4 are arranged opposite at both ends of the storage area S in a second direction D2 that is perpendicular to the first direction D1, with the storage area S sandwiched therebetween. The buffer portions 4 include a plate-shaped first buffer portion 41 extending along the second direction D2, and a plate-shaped second buffer portion 42 arranged above the first buffer portion 41 with a gap therebetween, extending along the second direction D2, and formed in an inverted V shape when viewed from the second direction D2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Conventionally, packaging members 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 members have a buffer section formed outside the storage area for storing the packaged item.

[0003] For example, the conventional cushioning body for packaging disclosed in Patent Document 1 includes a main cushioning material formed from a cardboard blank. The main cushioning material has an area folded in a V shape along a bottom fold line outside the storage space for the lens, which is the packaged item. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-132325 Summary of the Invention [Problem to be solved by the invention]

[0005] The above-mentioned conventional technology can enhance the cushioning effect in the V-shaped folded area. However, since the high cushioning effect is limited to the periphery of the V-shaped edge of the cardboard facing the storage space, further improvement of the cushioning effect requires measures such as increasing the thickness of the cardboard or changing the cardboard structure from one layer to two layers, which poses a problem. This raises concerns about the increased cost of packaging materials.

[0006] The present invention has been made in view of the above points, and has an object to provide a packaging member that can improve cushioning effect with a configuration that achieves low cost. [Means for solving the problem]

[0007] In order to solve the above problems, the packaging member of the present invention is a packaging member having a storage area formed by folding a single sheet material, and includes a bottom, a pair of sidewalls, and a pair of buffers. The bottom is rectangular. The pair of sidewalls are formed by folding upward from the periphery of the bottom and are arranged opposite each other in a first direction with the storage area between them. The pair of buffers are arranged opposite both ends of the storage area in a second direction perpendicular to the first direction. The buffers include a plate-shaped first buffer that extends along the second direction, and a plate-shaped second buffer that is arranged above the first buffer with a gap therebetween, extends along the second direction, and is formed in an inverted V shape when viewed from the second direction. [Effects of the Invention]

[0008] According to the configuration of the present invention, the buffer section faces the storage area of ​​the packaged item in two regions, the first buffer section and the second buffer section, thereby enhancing the buffering effect. Furthermore, the packaging material does not need to take measures such as increasing the overall thickness of the sheet material to enhance the buffering effect of the buffer section. Therefore, the packaging material can improve the buffering effect with a configuration that achieves low cost. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view of a packaging member and a holding member according to an embodiment of the present invention. [Figure 2] FIG. 2 is an exploded perspective view of the packaging member and the holding member of FIG. [Figure 3] FIG. 2 is a development view of the packaging member of FIG. [Figure 4] FIG. 4 is a partially enlarged view of the development of the packaging member of FIG. 3. [Figure 5] 2 is a side view of the packaging member of FIG. 1 as viewed from a second direction. FIG. [Figure 6] FIG. 10 is a partially enlarged view of a development of a packaging member according to a first modified example. [Figure 7] 10 is a side view of the packaging member of the first modification seen from a second direction. FIG. [Figure 8] FIG. 10 is a partially enlarged perspective view of a packaging member according to a second modification. 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 short-side direction of the packaging member 1), and the direction indicated by the arrow D2 is the "second direction" (the long-side direction of the packaging member 1). The first direction and the second direction are perpendicular to each other.

[0011] 1 and 2 are a perspective view and an exploded perspective view of a packaging member 1 and a holding member 100 according to an embodiment. FIG. 3 is a development view of the packaging member 1 of FIG.

[0012] 1 and 2, the packaging member 1 has a substantially rectangular parallelepiped outer shape and extends longitudinally along the second direction D2. The packaging member 1 is formed in a substantially U-shape when viewed from the second direction D2, and is held by two holding members 100 arranged on both ends in the second direction D2, which is the longitudinal direction. The packaging member 1 has an interior storage area S for an item to be packaged (not shown). The packaging member 1, held by the two holding members 100, is placed inside a packaging box (not shown), for example.

[0013] When the packaging member 1 is unfolded, it becomes the development diagram shown in Fig. 3. The packaging member 1 is a single sheet material (blank) that has a rectangular outer shape when unfolded flat, and is made of, for example, cardboard. In other words, the packaging member 1 is formed by folding a single sheet material.

[0014] The packaging member 1 includes a bottom portion 2, a pair of side wall portions 3, and a pair of buffer portions 4.

[0015] The bottom 2 is disposed approximately in the center in the short side direction of the flat sheet-like packaging member 1. The bottom 2 has a rectangular shape in plan view that extends elongatedly in the second direction D2 when viewed from the top-bottom direction.

[0016] The pair of side walls 3 are arranged on both outer sides in the short side direction of the flat sheet-material packaging member 1, sandwiching the bottom portion 2. The pair of side walls 3 are formed by folding upward from the peripheral edges (fold lines 2f) of the bottom portion 2. More specifically, the pair of side walls 3 are formed by folding upward the sheet-material packaging member 1 along two fold lines 2f that are spaced apart in the short side direction (first direction D1) and extend in the second direction D2, sandwiching the bottom portion 2.

[0017] The pair of side walls 3 are disposed opposite each other in the first direction D1 across the storage area S. Each of the pair of side walls 3 has a rectangular shape that extends elongatedly in the second direction D2 when viewed from the opposing direction (first direction D1).

[0018] The pair of buffer sections 4 are arranged opposite both ends in the second direction D2 with the storage area S in between. Specifically, in the assembled state shown in Fig. 1, each of the pair of buffer sections 4 is arranged outside in the second direction D2 of a closing wall 101 of a holding member 100 that closes both ends in the second direction D2 of the storage area S. The pair of buffer sections 4 are formed by folding both ends in the second direction D2 of a packaging member 1 made of a sheet material that is in a flat state.

[0019] Next, the detailed configuration of the buffer section 4 will be described using Figures 4 and 5 in addition to Figures 1, 2, and 3. Figure 4 is a partially enlarged view of the developed view of the packaging member 1 in Figure 3. Figure 5 is a side view of the packaging member 1 in Figure 1 as viewed from the second direction D2. Note that Figure 4 is an enlarged view of the periphery of the buffer section 4 on one end side in the second direction D2 of the packaging member 1 made of sheet material, but the buffer section 4 on the other end side in the second direction D2 has the same configuration.

[0020] The buffer section 4 includes a first buffer section 41 and a second buffer section 42.

[0021] 1 and 5, the first buffer section 41 is disposed below the second buffer section 42. In addition, the first buffer section 41 is located more inward than the second buffer sections 42, which are disposed at both ends in the second direction D2, in the sheet-like packaging member 1 shown in FIG. 4. The first buffer section 41 is formed in a plate shape extending along the second direction D2. The edge of the plate-shaped first buffer section 41 in the second direction D2 faces the storage area S in the second direction D2, so that the buffer section 4 can obtain the buffering effect of the first buffer section 41.

[0022] Specifically, the first buffer portion 41 is disposed at the same height as the bottom portion 2. The first buffer portion 41 is disposed on an extension of the bottom portion 2 in the second direction D2, and extends parallel to the bottom portion 2. This configuration can enhance the buffering effect at the bottom portion of the storage area S.

[0023] 1 and 5, the second buffer section 42 is disposed above and spaced from the first buffer section 41. In addition, the second buffer section 42 is disposed at both ends in the second direction D2 in the sheet-like packaging member 1 shown in FIG. 4, and is positioned outside the first buffer section 41. The second buffer section 42 is formed in a plate shape extending along the second direction D2. The edge end of the plate-like second buffer section 42 in the second direction D2 faces the storage area S in the second direction D2, so that the buffer section 4 can obtain the buffering effect of the second buffer section 42.

[0024] 5, the second buffer section 42 is formed in an inverted V shape when viewed from the second direction D2 above the first buffer section 41. In other words, the second buffer section 42 is formed in a shape that convex upward so that the periphery of the central part in the first direction D1 is separated from the first buffer section 41 (bottom 2).

[0025] According to the above configuration, the buffer section 4 faces the storage area S for the packaged item in two areas, the first buffer section 41 and the second buffer section 42, thereby enhancing the buffering effect. Furthermore, the packaging material 1 does not require measures such as increasing the overall thickness of the sheet material in order to enhance the buffering effect of the buffer section 4. Therefore, the packaging material 1 can improve the buffering effect with a configuration that achieves low cost.

[0026] The apex 42t of the second buffering portion 42 formed in an inverted V shape can be positioned at any position in the first direction D1 by changing the way the second buffering portion 42 is formed (the way it is bent).

[0027] The second buffer section 42 is formed by folding the sheet-made packaging member 1 at the boundary (fold line 4f) with the first buffer section 41 toward the center in the second direction D2 so as to overlap above the first buffer section 41. As a result, the second buffer section 42 is disposed above the first buffer section 41. Note that the part of the sheet-made packaging member 1 folded so as to overlap above the first buffer section 41 overlaps the inner side of the pair of side wall sections 3.

[0028] According to the above configuration, the first buffer section 41 and the second buffer section 42, which are spaced apart in the vertical direction in the buffer section 4, can be easily formed from a single sheet material. That is, there is no need to prepare a separate sheet material as the second buffer section 42 and attach the second buffer section 42 so that it is positioned above the first buffer section 41. Therefore, the packaging member 1 has a simple configuration that can reduce the number of parts, improve the efficiency of the assembly work, and further improve the buffering effect.

[0029] More specifically, the second buffering section 42 is formed by folding a pair of valley fold lines 421 and mountain fold lines 422 into an inverted V shape. As shown in FIG. 4, the pair of valley fold lines 421 are formed in the packaging member 1 made of sheet material at a distance L2 that is wider than the length L1 of the first buffering section 41 in the first direction D1, and extend in the second direction D2. The mountain fold line 422 is formed between the pair of valley fold lines 421 in the first direction D1, and extends in the second direction D2. Note that a straight section 4s between the pair of valley fold lines 421 at the boundary (fold line 4f) between the second buffering section 42 and the first buffering section 41 has a slit formed therein that penetrates the sheet material in the thickness direction.

[0030] According to the above configuration, the second buffer section 42 having an inverted V shape can be easily formed above the first buffer section 41.

[0031] Next, the packaging member 1 of Modified Example 1 will be described with reference to Fig. 6 and Fig. 7. Fig. 6 is a partially enlarged view of the developed view of the packaging member 1 of Modified Example 1. Fig. 7 is a side view of the packaging member 1 of Modified Example 1 as viewed from the second direction D2. Note that Fig. 6 is an enlarged view of the periphery of the buffer section 4 at one end side in the second direction D2 of the packaging member 1 made of sheet material, but the buffer section 4 at the other end side in the second direction D2 has the same configuration.

[0032] In the packaging member 1 of the first modification, the first buffering section 41 is formed in an inverted V shape that is more gently inclined with respect to the bottom 2 than the second buffering section 42. In detail, the first buffering section 41 is formed by folding a pair of valley fold lines 411 and mountain fold lines 412 into an inverted V shape.

[0033] As shown in Fig. 6, the pair of valley fold lines 411 are formed in the sheet packaging member 1 at a distance L3 that is wider than the length Lb of the bottom portion 2 in the first direction D1, and extend in the second direction D2. The distance L4 between the pair of valley fold lines 421 in the second buffering section 42 is wider than the distance L3 between the pair of valley fold lines 411 in the first buffering section 41. The mountain fold line 412 is formed between the pair of valley fold lines 411 in the first direction D1 and extends in the second direction D2. The mountain fold line 412 of the first buffering section 41 is disposed in the center in the first direction D1, similar to the mountain fold line 422 of the second buffering section 42, but can be disposed at any position different from the mountain fold line 422.

[0034] According to the above configuration, the first buffer section 41 can be moved in the vertical direction. This makes it possible to enhance the buffering effect of the first buffer section 41 on the storage area S at any position between the bottom section 2 and the second buffer section 42 in the vertical direction.

[0035] Next, the packaging member 1 of the second modification will be described with reference to Fig. 8. Fig. 8 is a partially enlarged perspective view of the packaging member 1 of the second modification.

[0036] In the packaging member 1 of Modification 1, the second buffer section 42 has a recess 423. The recess 423 is formed in a part of the second buffer section 42 that faces the storage area S in the second direction D2. The recess 423 is recessed from the center side (inside) toward the end side (outside) in the second direction D2. Note that a recess with this configuration is formed in at least one of the first buffer section 41 and the second buffer section 42.

[0037] According to the above configuration, a strong cushioning effect is not required for the storage area S, and the recesses 423 can be arranged in any local area where it is desired to avoid the cushioning effect. This makes it possible to prevent damage to delicate parts of the packaged items caused by the configuration of the cushioning section 4.

[0038] 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]

[0039] 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]

[0040] 1 Packaging materials 2 bottom 3 Side wall 4 Buffer section 41 1st buffer section 42 Second buffer section 421 Valley fold line 422 Mountain fold line 423 Recess D1 1st direction D2 2nd direction S Containment Area

Claims

1. A packaging member having a storage area formed by folding a single sheet material, a rectangular bottom; a pair of side wall portions formed by bending upward from the peripheral edge of the bottom portion and disposed opposite to each other in a first direction with the storage area therebetween; a pair of buffer sections disposed opposite to each other at both ends in a second direction perpendicular to the first direction, with the storage area interposed therebetween; Equipped with The buffer section is a plate-shaped first buffer portion extending along the second direction; a plate-like second buffer portion disposed above the first buffer portion at a distance, extending along the second direction, and formed in an inverted V shape when viewed from the second direction; A packaging member comprising:

2. The packaging material described in claim 1, characterized in that the second buffer portion is arranged at both ends of the sheet material in the second direction, located outside the first buffer portion, and is positioned above the first buffer portion by folding it toward the center in the second direction at the boundary with the first buffer portion.

3. The second buffer section is a pair of valley fold lines formed in the sheet material at an interval wider than the length of the first buffer portion in the first direction and extending in the second direction; a mountain fold line formed between the pair of valley fold lines and extending in the second direction; 3. The packaging member according to claim 2, wherein the packaging member is formed by bending the sheet into an inverted V shape.

4. The packaging member according to claim 1 , wherein the first buffer portion is disposed on an extension of the bottom portion in the second direction and extends parallel to the bottom portion.

5. The packaging member according to claim 1 , wherein the first buffering portion is formed in an inverted V-shape that is more gently inclined with respect to the bottom than the second buffering portion.

6. The packaging member according to claim 1, characterized in that at least one of the first buffer section and the second buffer section has a recess in a portion facing the storage area that is recessed toward the end side in the second direction.

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