JPH07309374A - Cushioning material, and packaging case provided with the material - Google Patents

Abstract

PURPOSE:To obtain a package cushioning material using natural raw material which is easy to manufacture and assemble, excellent in cushioning effect at the corner part which tends to undergo impact concentration and free from bulkiness for the storage or disposal. CONSTITUTION:A sheet of corrugated cardboard or cardboard is folded to integrally form, in top view, a V-shaped vertical load receiving part 1 and a W-shaped lateral load receiving part 2 having the surfaces common to both the sides. These sides (4) are secured in a packaging case by extensions 6 or tongue pieces. In the case of the formation with the corrugated cardboard, the liner of the corrugated cardboard is set in the vertical direction. Preferably, a back-up material formed of an integral material by folding it is provided on the rear face of the W-shaped part of the lateral load receiving part 2. The back-up material is formed into a doubly foldable structure in its entirety, its part to be positioned behind the W-shaped part of the lateral load receiving part 2 is folded over the lateral load receiving part 2 by forming a V-shaped ridge line when seen from the rear and the ridge line inside the folded part is further folded to form a small V-shaped part which is attached to the central rear face of the W-shaped part of the lateral load receiving part 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box used for packaging, for example, an electronic device which is vulnerable to impact and a cushioning material used for the packaging box.

[0002]

2. Description of the Related Art In order to protect a shock-sensitive device such as an electronic device from a shock during loading and unloading, it is well known to provide a cushioning material between an outer box for packaging the device and a device to be packaged. Conventionally, a styrofoam molded product as shown in FIG. 7 has been often used as this cushioning material, but in order to prevent environmental pollution due to disposal, it has been replaced with a cushioning material using a natural material such as cardboard. .

As such a cushioning material using a natural material, as shown in FIG. 8, a block-shaped corrugated cardboard plate or a combination of slit-corrugated corrugated cardboard plates is used. ing.

[0004]

However, a block made by stacking corrugated board has a large amount of corrugated board used and is bulky, and requires space for storage and is not suitable for disposal after use. There is a problem that it is inconvenient. In addition, when the corrugated board is assembled in a cross girder, there is a problem that the manufacturing (cutting and assembling of the corrugated board) takes time and labor, resulting in high cost.

The present invention is simple to manufacture and assemble,
In particular, it is an object to obtain a cushioning material made of a natural material which is excellent in cushioning effect at the corner where shock is likely to be concentrated and does not become bulky at the time of storage or disposal, and a packaging box provided with such cushioning material. .

[0006]

The cushioning material of the present invention comprises:
A V-shaped vertical load receiving portion 1 and a W-shaped lateral load receiving portion 2 are integrally formed in a plan view in which both corrugated sheets or cardboard are bent to form a common surface on both sides. On both sides 4, 4,
Extensions 6, 6 or tongues 7, 7 for stationary placement in a packaging box
Is provided.

When the cushioning material is formed of a corrugated board, the liner of the corrugated board is set in the vertical direction.

Further, the above-mentioned cushioning material is the W of the lateral load receiving portion 2 thereof.
The back surface of the shape may be provided with a backup material 19 formed by bending a material integrated with the vertical load receiving portion 1 and the horizontal load receiving portion 2.

The backup material is W of the lateral load receiving portion 2.
The portion located behind the shape is bent toward the lateral load receiving portion 2 side along the mountain fold lines 24 and 24 which are V-shaped when viewed from the back side, and the valley fold lines 25 and 25 inside thereof are bent to form the W shape of the lateral load receiving portion 2. It is possible to form a small V-shape attached to the central back surface of the.

The packaging box of the present invention is provided with the cushioning material 11 having the above-mentioned configuration at the four corners. The V shape of the vertical load receiving portion 1 and the W shape of the lateral load receiving portion 2 are
Both sides 4 and 4 project inward from the corner of the packaging box and are fixed to the side walls 5 and 5 of the corner of the packaging box.

[0011]

[Function] The object to be packaged such as the electronic device housed in the packaging box is
The cushioning material is supported by the upper edge 12 of the vertical load receiving portion 1 that is bent in the V shape, and is laterally pressed by the inverted V shape surface of the central portion of the W shape of the horizontal load receiving portion 2 in a packaging box. It is held with a space between the bottom surface 13 and the side walls 5, 5.

When the cushioning material is formed with the corrugated board liner (corrugated board) in the vertical direction, the load of the package is supported by the liner in the vertical direction with high rigidity, while the impact applied in the horizontal direction is applied to the liner. The structure can be rational in that it is absorbed flexibly because the rigidity of does not work.

Further, by forming the backup material 19 on the back surface of the lateral load receiving portion 2, it is possible to adjust the cushioning ability of the lateral load receiving portion 2 and to obtain a cushioning material having a large resistance against lateral load.

Further, when viewed from the back side of the backup material 19, the mountain fold lines 24, 24, which are V-shaped, and the valley fold lines 2 inside thereof,
In the case of forming the bent pieces 5 and 25, the backup strength can be adjusted by the size of the V shape formed by the mountain fold line.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 5, the cushioning material of the illustrated embodiment has a vertical load receiving portion 1 and a horizontal load receiving portion 2 integrally formed by refracting one corrugated board or cardboard. In addition, a transverse cut 3 is provided in the central portion between the two 1, 2 so that the vertical load receiving portion 1 projects inward from the corner of the packaging box in a 90 ° V shape in plan view. The lateral load receiving portion 2 is refracted so as to project inward from the corner of the packaging box in a 90 ° W shape in a plan view. Both sides of the V shape of the vertical load receiving portion 1 and the W shape of the horizontal load receiving portion 2 are integrally connected surfaces, and the both side edges 4 and 4 are the side walls 5 and 5 at the corners of the packaging box. It has a fixed structure.

As the stationary structure, in the embodiment shown in FIG. 1, extending portions 6 and 6 which are bent further outward from the both sides 4 are provided, and the extending portions are attached to the side walls 5 and 5 of the packaging box. The structure is adopted. In the embodiment shown in FIG. 2, insert tongues 7 are formed on the sides 4 and 4 of the cushioning material and are inserted into the slits 8 formed on the side walls 5 and 5 of the packaging box. In the embodiment shown in FIG. 3, the side edge 4 of the cushioning material 11,
The extending portions 6, 6 extending from 4 to the corner side of the packaging box are integrally formed, and the tip ends of the extending portions are abutted at the corners 9 of the packaging box so that the cushioning material 11 is formed. It has a structure in which it is placed in a corner of the unit and is fixed.

In the packaging box of the present invention, the cushioning material 11 having the above-described structure is provided at its four corners. An object to be packaged such as an electronic device accommodated in a packaging box is supported by an upper edge 12 portion of the vertical load receiving portion 1 of the cushioning material, which is bent in a V shape, and is opposite to a central portion of the W shape of the lateral load receiving portion 2. With the V-shaped surface pressed from the side, the bottom surface 13 and the side wall 5 of the packaging box,
It is held in a state of being spaced apart from 5.

When the cushioning material is formed of a corrugated board, the direction of the liner (corrugated board) of the corrugated board is the vertical direction. This facilitates the bending work when bending into the V shape and the W shape and when forming the extending portions 6 and 6, and the load of the package is supported by the liner in the vertical direction with high rigidity, while The rational structure is that the directional impact is flexibly absorbed because the rigidity of the liner does not act.

In the cushioning material having such a structure, a notch 3 in the horizontal direction is provided at the center of a rectangular corrugated board or cardboard, and the vertical load receiving portion 1 on one side of the notch is provided as one vertical folding line 14. Is formed into a V shape by bending the other lateral load receiving portion 2 into a W shape by the three vertical folding lines 15, 16 and 17. When the packaged object has a frame edge or the like on the bottom, as shown in FIG. 4, the lateral notch 3 is formed in a convex shape, and the V-shaped tip of the vertical load receiving portion 1 has an upper edge. It is also possible to form a protrusion 18 that fits inside the frame edge of the bottom of the package.

The cushioning material formed in this way is the broken line 1
The folding lines of 4, 15, 16, 17 and the side portions 4 and 4 that bend and form the extending portion have a crease, and are stored in a flat state, and each folding line is 90 degrees when it is attached to the packaging box. Bend and wear. After use, the side walls 5 and 5 of the packaging box
Since it can be folded together, it is not bulky during storage or disposal.

The cushioning material of the present invention can adjust the cushioning capacity of the lateral load receiving portion 2 by forming the backup material 19 on the back surface of the vertical load receiving portion 2. The backup material 19 is formed integrally with the cushioning material body by bending a corrugated board or a cardboard. 5 and 6 show
An embodiment of the cushioning material 11 of the present invention provided with a backup material 19 is shown, in which the cushioning material 11 provided with the backup material 19 is integrally bent and formed from one rectangular corrugated board.

In the example of FIGS. 5 and 6, a rectangular corrugated board 21 is used.
A 180-degree fold line 22 is provided at the center of one of the buffers, one is the cushioning material body side, the other is the backup material side, and a center fold line 23 is provided so as to be orthogonal to the 180-degree fold line. Then, a notch 27 that is parallel to each other is formed at the center of the 180-degree bending line 22 and at the boundary between the vertical load receiving portion 1 and the horizontal load receiving portion 2.
To provide. And the notch 2 on the 180 degree bend line 22
Mountain fold lines 24, 24 are provided obliquely from both ends of 7 toward the center fold line 23 on the backup material side, and the cut 2
Two diagonal valley fold lines 25, 25 are provided so as to form a small V-shape having an apex angle of 90 degrees at the central portion of the backup material side of 7.

Then, the backup material is bent along the lateral 180-degree bending line 22 so as to be attached to the back of the cushioning material main body, and the cushioning material main body side is V-shaped with a gap between the backup material and the backup material. To form a vertical load receiving portion 1 and a lateral load receiving portion 2 by bending into a W shape and a W shape, and a portion of the backup material located behind the W shape of the horizontal load receiving portion 2 becomes a V shape when viewed from the back. The mountain fold lines 24, 24 are bent toward the lateral load receiving portion 2 side, and the valley fold lines 25, 25 inside thereof are bent to form a small V-shape attached to the W-shaped tip rear surface of the lateral load receiving portion 2. The small V-shaped portion 26 backs up the back of the central ridgeline of the lateral load receiving portion 2. In this way, by the structure in which the backup material is formed by bending the back surface of the lateral load receiving portion 2 with an integral material, it is possible to obtain a cushioning material having a large resistance to lateral load. Further, the backup strength can be adjusted by changing the length of the cut 27 on the 180-degree bending line 22. Further, in the structure shown in FIG. 5, by adhering the small V-shaped portion 26 to the back surface of the lateral load receiving portion 2, the rigidity against lateral load can be further increased.

[0024]

According to the present invention described above, it can be formed from a single corrugated board or cardboard, does not bulky in inventory and disposal, can be easily assembled at the time of mounting in a packaging box, and can be horizontally mounted. It is possible to obtain a cushioning material made of a natural material that can adjust the cushioning force and the supporting force against a load or the like as necessary.

Therefore, by making the cushioning material a natural material, it is possible to avoid the problem of environmental pollution due to disposal, and by making the cushioning material a natural material, the material cost and the work cost which have been conventionally caused are increased. There is an effect that it can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a perspective view of a second embodiment shown in the state of being assembled.

FIG. 3 is a perspective view of a third embodiment.

FIG. 4 is a perspective view of a fourth embodiment.

FIG. 5 is a perspective view of a fifth embodiment.

FIG. 6 is a development view of the fifth embodiment.

FIG. 7 is a perspective view of a block-shaped cushioning material made of Styrofoam.

FIG. 8 is a perspective view of a block-shaped cushioning material made of laminated corrugated board.

[Explanation of symbols]

 1 Vertical load receiving part 2 Horizontal load receiving part 4 Side 5 Side wall 6 Extension part 7 Inserting tongue 11 Buffer material 12 Upper edge 13 Bottom 19 Backup plate 24 Mountain fold line 25 Valley fold line

Claims (5)

[Claims] 1. A V-shaped vertical load receiving portion in a plan view in which one corrugated board or cardboard is bent to form a common surface on both sides.
(1) and the W-shaped lateral load receiving portion (2) are integrally formed, and the extended portions (6, 6) or tongue pieces (7) for fixing in the packaging box are formed on both sides (4, 4) of the lateral load receiving portion (2). , 7) is provided, the cushioning material. 2. The cushioning material according to claim 1, which is formed by bending a corrugated board having a liner in a vertical direction. 3. A backing material (19) formed by bending a material which is integral with the vertical load receiving portion (1) and the horizontal load receiving portion (2) on the W-shaped rear surface of the horizontal load receiving portion (2). The cushioning material according to claim 1. 4. The backup material is a lateral load receiver (2).
Bend the part located behind the W-shape to the V-shaped mountain fold line (24, 24) when viewed from the back to the lateral load receiving part (2) side, and fold the inner fold line (25, 25). The cushioning material according to claim 3, wherein a small V-shape is formed on the rear surface of the W-shaped center of the lateral load receiving portion (2). 5. The cushioning material according to claim 1, 2, 3 or 4 is provided in the four corners with the V-shaped longitudinal load receiving portion (1) and the W-shaped lateral load receiving portion (2) inside from the corners. The packaging box is provided so that both sides (4, 4) thereof are fixed to the side walls (5, 5) of the corners of the packaging box in a direction projecting toward.