Packaging member

Abstract

To provide a packaging member that can firmly maintain its three-dimensional shape by a configuration in which positional deviations in various locations are suppressed.SOLUTION: A packaging member 1 has a storage area S formed by folding a single sheet material, and includes a base part 2, a pair of side wall parts 3, a pair of first buffer parts 4, and a pair of second buffer parts 5. The pair of side wall parts 3 are folded from the periphery of the base part 2 and are arranged opposite each other in a first direction D1 with the storage area S interposed therebetween. The pair of first buffer parts 4 are folded from the periphery of the pair of side wall parts 3 and extend outward in the first direction D1. The pair of second buffer parts 5 are folded from the periphery of the pair of first buffer parts 4 and extend approximately perpendicular to the side wall parts 3 in the first direction D1 and in a direction approaching the base part 2. The base part 2 has a pair of through holes 21 arranged at a distance in the first direction D1. The pair of second buffer parts 5 have a pair of protrusions 51 that are inserted into the pair of through holes 21.SELECTED DRAWING: Figure 2

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 cardboard packaging body disclosed in Patent Document 1 is equipped with end positioning members that contain cushioning members formed from a single, roughly rectangular piece of cardboard for the packaged item. The cushioning members are configured by folding the cardboard into two shapes: a U-shape when viewed from the opening side of the end positioning members, and an L-shape when viewed from the side. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-362540 Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned prior art, the two types of cushioning materials, U-shaped and L-shaped, can maintain their three-dimensional shape by being inserted into the end positioning members, which are made of a box body. However, the two types of cushioning materials in the prior art had a problem in that before being inserted into the end positioning members, the elasticity of the cardboard caused them to return to a flat state, making it difficult for them to maintain their three-dimensional shape. This made it difficult to temporarily place them, and there was a concern that this could reduce the efficiency of packaging work.

[0006] The present invention has been made in consideration of the above points, and aims to provide a packaging member that can firmly maintain its three-dimensional shape by having a configuration that suppresses positional deviations in various parts. [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 base portion, a pair of side wall portions, a pair of first buffer portions, a pair of second buffer portions, and a third buffer portion. The base portion is rectangular. The pair of side wall portions are formed by folding the peripheral edges of the base portion at approximately right angles and are arranged opposite each other in a first direction with the storage area sandwiched between them. The pair of first buffer portions are formed by folding the peripheral edges of the pair of side wall portions at approximately right angles and extend outward in the first direction relative to the side wall portions. The pair of second buffer portions are formed by folding the peripheral edges of the pair of first buffer portions at approximately right angles and extend approximately perpendicular to the side wall portions in the first direction and in a direction approaching the base portion. The third buffering portion is connected between each of the pair of second buffering portions, and is formed in a substantially V-shape when viewed from the second direction facing the base portion, and is disposed adjacent to the base portion on the outside of the storage area. The base portion has a pair of through holes spaced apart in the first direction. The pair of second buffering portions have a pair of protrusions inserted into the pair of through holes. [Effects of the Invention]

[0008] According to the configuration of the present invention, in a three-dimensional shape of the packaging member comprising a pair of first buffer sections, a pair of second buffer sections, and a third buffer section, the protrusions of each of the pair of second buffer sections can be inserted into a pair of through-holes of the base section. By inserting the protrusions into the through-holes, it is possible to prevent each of the pair of second buffer sections from spreading apart to both sides in the first direction. In other words, it is possible to prevent the pair of second buffer sections from shifting relative to the base section. Therefore, the packaging member can firmly maintain its three-dimensional shape due to a configuration in which positional shifts in various locations are suppressed. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a package including a packaging member according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the packaging member of FIG. [Figure 3] FIG. 3 is a development view of the packaging member of FIG. 2. [Figure 4] 3 is a perspective view of the packaging member of FIG. 2 as seen from the side of the storage area for the packaged item. [Figure 5] 3 is a perspective view of the packaging member of FIG. 2 as seen from the opening side of the packaging box. 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 direction indicated by the arrow D2 is the "second direction," and the direction indicated by the arrow D3 is the "third direction." The first direction D1, the second direction D2, and the third direction D3 are perpendicular to one another. Furthermore, in this embodiment, with respect to the packaged item Pr, which has a rectangular parallelepiped shape, the first direction D1 is the short-side direction of the packaged item Pr, the second direction D2 is the up-down direction of the packaged item Pr, and the third direction D3 is the long-side direction of the packaged item Pr. The opening of the packaging box Bp is the top surface of the packaging box Bp.

[0011] FIG. 1 is a perspective view of a packaging body Pa including a packaging member 1 of an embodiment. FIG. 2 is a perspective view of the packaging member 1 of FIG. 1. FIG. 3 is a developed view of the packaging member 1 of FIG. 2. FIG. 4 is a perspective view of the packaging member 1 of FIG. 2 as seen from the storage area S side of the packaged item Pr. FIG. 5 is a perspective view of the packaging member 1 of FIG. 2 as seen from the opening side of the packaging box Bp. Note that FIG. 1 is a perspective view of the packaging body Pa as seen from the opening side (top side) of the packaging box Bp. The packaging body Pa includes the packaging box Bp and the packaging member 1.

[0012] 1 and 2, the packaging member 1 has a substantially rectangular parallelepiped outer shape. A portion of the packaging member 1 is formed in a substantially inverted U shape when viewed from the third direction D3, and has a storage area S for the packaged item Pr. The packaging member 1 is placed at both ends in the longitudinal direction (third direction D3) of the packaged item Pr, which has a long rectangular parallelepiped shape, and is stored inside the packaging box Bp.

[0013] When the packaging member 1 is unfolded, it becomes the development view shown in Fig. 3. The packaging member 1 is a single sheet material (blank) that has a substantially 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 base portion 2, a pair of side wall portions 3, a pair of first buffer portions 4, a pair of second buffer portions 5, and a third buffer portion 6.

[0015] The base portion 2 is arranged approximately in the center of the flat sheet-like packaging member 1 and has a rectangular shape in a plan view. In the assembled packaging member 1 shown in Figures 1 and 2, the base portion 2 has a flat plate shape that faces the upper surface of the packaged item Pr (the surface facing the opening of the packaging box Bp), which has a rectangular parallelepiped shape, and extends in a first direction D1 (horizontal direction) and a third direction D3 (longitudinal direction of the packaged item Pr).

[0016] The pair of side walls 3 are arranged on both outer sides in the first direction D1 of the packaging member 1 made of a flat sheet material, sandwiching the base 2 therebetween. Each of the pair of side walls 3 is formed by bending from the periphery of the base 2 at a substantially right angle to the base 2. More specifically, the pair of side walls 3 are provided on the periphery of the base 2, and are formed by bending downward at a substantially right angle along two fold lines 2f that are spaced apart in the first direction D1 and extend in the third direction D3, sandwiching the base 2 therebetween.

[0017] The pair of side walls 3 are arranged opposite each other in the first direction D1 across the storage area S. Each of the pair of side walls 3 has a flat plate shape extending in the second direction D2 (vertical direction) and the third direction D3 (longitudinal direction of the packaged item Pr) in the assembled packaging member 1 shown in Figures 1 and 2.

[0018] The pair of first buffer sections 4 are arranged on both outer sides of the pair of side wall sections 3 in a direction away from the base section 2 in the packaging member 1 made of a flat sheet material. Each of the pair of first buffer sections 4 is formed by bending the peripheral edges of the pair of side wall sections 3 at a substantially right angle relative to the side wall sections 3. More specifically, each of the pair of first buffer sections 4 is provided on the peripheral edges of the pair of side wall sections 3, and is formed by bending the peripheral edges of the pair of side wall sections 3 at a substantially right angle in the horizontal direction along a fold line 3f1 extending in the third direction D3.

[0019] The pair of first buffer sections 4 are disposed opposite the inner bottom surface of the packaging box Bp. Each of the pair of first buffer sections 4 has a rectangular flat plate shape when viewed from a second direction D2 (vertical direction) extending in a first direction D1 (horizontal direction) and a third direction D3 (longitudinal direction of the packaged item Pr) in the assembled packaging member 1 shown in Figures 1 and 2. The pair of first buffer sections 4 are spaced downward from the base section 2 by the height of the side wall section 3 (the length in the second direction D2 (vertical direction)) and are approximately parallel to the base section 2.

[0020] Each of the pair of first buffer sections 4 extends outward in the first direction D1 relative to each of the pair of side wall sections 3. The leading edge of each of the plate-shaped first buffer sections 4 in the first direction D1 is adjacent to and faces the inner surface of the side of the packaging box Bp in the first direction D1, so that the packaging member 1 can obtain a buffering effect in the first direction D1 associated with the pair of first buffer sections 4.

[0021] The pair of second buffer sections 5 are connected to the pair of first buffer sections 4 via fold lines 4f that extend in a direction perpendicular to the fold lines 3f1 in the packaging member 1 made of a flat sheet material. Each of the pair of second buffer sections 5 is formed by folding the peripheral edges of each of the pair of first buffer sections 4 at approximately right angles to the first buffer sections 4. More specifically, each of the pair of second buffer sections 5 is formed by folding the corresponding peripheral edge of the pair of first buffer sections 4 upward at approximately right angles along the fold lines 4f.

[0022] In the sheet packaging member 1, a portion of the pair of second buffer sections 5 is adjacent to the pair of side wall sections 3. At the boundary between the pair of second buffer sections 5 and the pair of side wall sections 3, a cut 3C is formed that extends linearly on an extension of the fold line 3f1 and penetrates the sheet material in the thickness direction.

[0023] The pair of second buffer sections 5 are arranged to face the inner surface of one end of the packaging box Bp in the third direction D3 (the longitudinal direction of the packaged items Pr). Each of the pair of second buffer sections 5 has a substantially L-shaped flat plate shape when viewed from the third direction D3 extending in the first direction D1 and the second direction D2 (the up-down direction) in the assembled packaging member 1 shown in Figures 1 and 2.

[0024] Each of the pair of second buffer sections 5 extends in the first direction D1 and in a direction (second direction D2) approaching the base section 2, approximately perpendicular to the side wall section 3. The leading edges of the plate-shaped second buffer sections 5 in the first direction D1 and the second direction D2 are adjacent to and face the inner surfaces of the sides and top of the packaging box Bp in the first direction D1 and the second direction D2, so that the packaging member 1 can obtain the buffering effect of the pair of second buffer sections 5 in the first direction D1 and the second direction D2.

[0025] The third buffer sections 6 are arranged between the pair of second buffer sections 5 and between two fold lines 5f extending in a direction perpendicular to the fold line 4f in the flat sheet-like packaging member 1. The third buffer sections 6 are connected between the pair of second buffer sections 5 and are formed in a substantially V-shape when viewed from the second direction D2 (above) facing the base section 2.

[0026] Specifically, the third buffering section 6 is formed by folding the pair of second buffering sections 5 along two fold lines 5f provided on the periphery of each section into a substantially V-shape in the third direction D3 (the longitudinal direction of the packaged item Pr). In other words, the third buffering section 6 is formed in a shape that convexes laterally so that the periphery of the center in the first direction D1 is spaced outward in the third direction D3 relative to the packaged item Pr. As shown in Fig. 1, the apex of the V-shape of the third buffering section 6 faces the inner surface of the packaging box Bp in the third direction D3 (lateral direction).

[0027] The third buffer section 6 is disposed adjacent to the base section 2 on the outside of the storage area S, and faces the upper inner surface of the packaging box Bp in the second direction D2 (vertical direction). In the assembled packaging member 1 shown in Figures 1 and 2, the third buffer section 6 has a flat plate shape that extends in the second direction D2 (vertical direction) and approximately in the third direction D3 (longitudinal direction of the packaged item Pr).

[0028] The third buffer section 6 is disposed opposite the base section 2 and extends upward in the normal direction (second direction D2) of one surface of the base section 2. The leading edge of the plate-shaped third buffer section 6 in the second direction D2 is adjacent to and faces the upper inner surface of the packaging box Bp in the second direction D2, allowing the packaging member 1 to obtain a buffering effect of the third buffer section 6 in the second direction D2.

[0029] The base portion 2 also has a pair of through holes 21. The pair of through holes 21 are arranged to be spaced apart in the first direction D1. The through hole 21 has a rectangular shape in a plan view and extends in the first direction D1.

[0030] The pair of through holes 21 are arranged side by side on an extension of the fold line 4f in the packaging member 1 made of a sheet material in a flat state. In the packaging member 1 in the assembled state shown in Figures 2, 4, and 5, each of the pair of through holes 21 faces a part of each of the pair of second buffer sections 5 in the second direction D2 (vertical direction) and is arranged below each of the pair of second buffer sections 5. The pair of through holes 21 extending in a rectangular shape are parallel to the pair of second buffer sections 5 which are in a flat plate shape.

[0031] The pair of second buffering sections 5 also have a pair of protrusions 51. Each of the pair of protrusions 51 is provided on each of the pair of second buffering sections 5 that are spaced apart in the first direction D1 with the third buffering section 6 sandwiched therebetween. The pair of second buffering sections 5 have a rectangular shape extending in the first direction D1.

[0032] The pair of protrusions 51 are arranged adjacent to the fold line 5f in the packaging member 1 made of a sheet material in a flat state. The pair of protrusions 51 face the base portion 2 in the second direction D2 (vertical direction) and are arranged above the base portion 2 in the assembled packaging member 1 shown in Figures 2, 4, and 5. More specifically, the pair of protrusions 51 face the pair of through holes 21 in the second direction D2 (vertical direction) and are arranged above the pair of through holes 21. Each of the pair of protrusions 51 is inserted into each of the pair of through holes 21 in the assembled packaging member 1.

[0033] According to the above configuration, in the packaging member 1 having a three-dimensional shape comprising a pair of first buffer sections 4, a pair of second buffer sections 5, and a third buffer section 6, the protrusions 51 of each of the pair of second buffer sections 5 can be inserted into a pair of through-holes 21 of the base section 2. By inserting the protrusions 51 into the through-holes 21, it is possible to prevent each of the pair of second buffer sections 5 from spreading apart to both sides in the first direction D1. In other words, it is possible to prevent the pair of second buffer sections 5 from shifting in position relative to the base section 2. Therefore, the packaging member 1 can firmly maintain its three-dimensional shape due to a configuration in which positional shifts in various locations are prevented.

[0034] Furthermore, each of the pair of through holes 21 is disposed adjacent to each of the pair of side wall portions 3. In other words, each of the pair of through holes 21 extends from the boundary (fold line 2f) between the pair of side wall portions 3 and the base portion 2 toward the inside of the base portion 2 in the first direction D1.

[0035] According to the above configuration, when the elasticity of a material such as cardboard causes each of the pair of second buffer sections 5 to spread apart outward in the first direction D1, the outer edges of the protrusions 51 in the first direction D1 are caught on the side wall sections 3. This makes it possible to prevent the pair of second buffer sections 5 from spreading outward in the first direction D1. This therefore enhances the effect of preventing the pair of second buffer sections 5 from shifting out of position.

[0036] The third buffer section 6 also has an engagement piece 61. The engagement piece 61 is formed in a substantially V-shape when viewed from the second direction D2 (vertical direction) and is provided at the apex of the V of the third buffer section 6. The engagement pieces 61 are arranged in two locations so as to be substantially opposite each other in the first direction D1. The engagement piece 61 is hook-shaped and extends downward in the second direction D2.

[0037] 2 and 4, the engagement piece 61 is located outside the side edge of the base part 2 to which the side wall part 3 is not connected. In other words, the engagement piece 61 is located outside the side edge of the base part 2 that is located outside the packaged item Pr in the third direction D3. The engagement piece 61 also extends toward the storage area S side of the base part 2. In other words, the engagement piece 61 extends downward in the second direction D2 (vertical direction) further than the base part 2. The engagement piece 61 engages with the side edge of the base part 2.

[0038] According to the above configuration, the hook-shaped engagement piece 61 of the third buffering portion 6 catches on the side edge of the base portion 2. This makes it possible to suppress upward displacement of the third buffering portion 6 in the second direction D2. Therefore, it is possible to enhance the effect of suppressing positional deviation of the third buffering portion 6.

[0039] The packaging member 1 also includes a fourth buffer section 7. The fourth buffer section 7 is arranged outside the storage area S of the packaging member 1 in the third direction D3 (the longitudinal direction of the packaged item Pr). In the packaging member 1 made of a flat sheet material, the fourth buffer section 7 is adjacent to the base section 2, between each of the pair of side wall sections 3, and between each of the two fold lines 3f2 extending parallel to each of the two fold lines 3f1. The fourth buffer section 7 is connected between each of the pair of side wall sections 3 and extends along the third direction D3, and is formed in a substantially V-shape when viewed from the third direction D3.

[0040] Specifically, the fourth buffer section 7 is formed by folding downward in the second direction D2 (vertical direction) along two fold lines 3f2 provided on the periphery of each of the pair of side walls 3 into a substantially V-shape. In other words, the fourth buffer section 7 is formed in a shape in which the periphery of the center in the first direction D1 is convex downward. As shown in Figs. 1 and 4, the apex of the V-shape of the fourth buffer section 7 faces the inner bottom surface of the packaging box Bp.

[0041] In the packaging member 1 made of sheet material, the fourth buffer section 7 is adjacent to the base section 2. A slit 7C extending linearly in the first direction D1 and penetrating the sheet material in the thickness direction is formed at the boundary between the fourth buffer section 7 and the base section 2. The slit 7C extends to the boundary between the fourth buffer section 7 and each of the pair of side wall sections 3.

[0042] The fourth buffer section 7 also has an overlapping section 71. In the packaging member 1 made of a sheet material in a flat state, the overlapping section 71 is arranged outside (lower in FIG. 3 ) the ends of the outer edges of the pair of side wall sections 3 in the third direction D3, on the side away from the base section 2. The overlapping section 71 is folded toward the base section 2 along a fold line 7f that extends on an extension of the ends of the outer edges of the pair of side wall sections 3 in the third direction D3, thereby being overlapped in two layers in the second direction D2 (vertical direction).

[0043] The fourth buffer section 7 is disposed adjacent to the base section 2 on the outside of the storage area S, and faces the inner lateral surface of the packaging box Bp in the third direction D3 (the longitudinal direction of the packaged item Pr). In the assembled packaging member 1 shown in Figures 1, 2, 4, and 5, the fourth buffer section 7 has a flat plate shape that extends substantially in the second direction D2 (the vertical direction) and the third direction D3 (the longitudinal direction of the packaged item Pr).

[0044] As described above, the leading edge of the plate-shaped fourth buffer portion 7 in the third direction D3 is adjacent to and faces the inner lateral surface of the packaging box Bp in the third direction D3, so that the packaging material 1 can obtain a buffering effect in the third direction D3 related to the fourth buffer portion 7.

[0045] 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]

[0046] 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]

[0047] 1 Packaging materials 2 Base 3 Side wall 4 1st buffer section 5 Second buffer section 6 Third buffer section 7 4th buffer section 21 Through hole 51 Protrusion 61 Engagement piece D1 1st direction D2 2nd direction D3 Third direction S Containment Area

Claims

1. A packaging member having a storage area formed by folding a single sheet material, A rectangular base portion; a pair of sidewall portions formed by bending the periphery of the base portion at a substantially right angle and disposed opposite to each other in a first direction with the storage area therebetween; a pair of first buffer portions formed by bending peripheral edges of the pair of side wall portions at approximately right angles and extending outward in the first direction relative to the side wall portions; a pair of second buffer portions formed by bending peripheral edges of the pair of first buffer portions at approximately right angles and extending approximately perpendicularly to the side wall portions in the first direction and in a direction approaching the base portion; a third buffer portion connected between each of the pair of second buffer portions and formed in a substantially V-shape when viewed from a second direction facing the base portion, and disposed adjacent to the base portion on the outside of the accommodation area; Equipped with the base portion has a pair of through holes spaced apart from each other in the first direction, The packaging member according to claim 1, wherein the pair of second buffer portions have a pair of protrusions that are inserted into the pair of through holes.

2. The packaging member according to claim 1 , wherein each of the pair of through holes extends from a boundary between the pair of side wall portions and the base portion toward the inside of the base portion.

3. The packaging material according to claim 1, characterized in that the third buffer portion extends toward the storage area of ​​the base portion outside the side edge to which the side wall portion of the base portion is not connected, and has an engaging piece that engages with the side edge of the base portion.

4. The packaging material according to claim 1, characterized in that it comprises a fourth buffer portion that is arranged outside the storage area in a third direction perpendicular to the first direction and the second direction, extends along the third direction, and is formed in an approximately V-shape when viewed from the third direction.

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