JP2001225872A - Cushioning material for package and packaging container equipped with cushioning function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corrugated board cushioning material which can be simply fabricated and is excellent in mass production property while being free from troubles of causing environmental problems after use. SOLUTION: The corrugated board cushioning material 10 is formed in a structure wherein a corrugated board sheet 10a is folded up in layers alternately and stoppers 10b projectingly provided in a tongue shape respectively at both side edges of the corrugated board sheet 10a are bent respectively at their bases and fitted into dents 12 formed respectively at end faces of the folded-up and layered corrugated board sheet 10a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material for packaging and a packaging container with a cushioning function for preventing damage to the articles when the articles are carried or stored.

[0002]

2. Description of the Related Art Various products such as industrial products are shipped, transported or stored in a state of being stored in a cardboard box or the like. When storing goods in a cardboard box, etc., a cushioning material with a function to reduce the impact is provided in the gap between the article and the inner surface of the box in order to prevent the article from being damaged or damaged by vibration or shock during transportation. Has been put in.

Conventionally, as a generally used cushioning material, a foamed synthetic resin-based material such as foamed polystyrene or foamed polyurethane, or a paper-based material such as cardboard or mold-based material has been used. and so on.

[0004] Foamed synthetic resin-based cushioning materials are used in various fields because they are lightweight, have excellent moldability, and have relatively good cushioning properties. However, they generate toxic gas during combustion. Later, it cannot be easily incinerated and does not easily disassemble or corrode, so it cannot be disposed of at a disposal site. For this reason, it tends to induce illegal dumping after use, causing various environmental problems.

A cushioning material made of paper can be incinerated and is unlikely to cause environmental problems. However, a mold-type cushioning material must be molded using a mold. Requires much labor and time, is expensive, and has a somewhat inferior cushioning function as compared with other cushioning materials.

On the other hand, since the cardboard cushioning material can be made of a wooden mold, the cost is lower than that of the mold cushioning material, and the shock absorbing function is superior to that of the mold cushioning material. It is getting. Such a cardboard cushioning material is manufactured by a process as shown in FIG.

In the step shown in FIG. 19A, a corrugated cardboard 91 having a punched portion 90 formed in advance in accordance with the outer shape of a stored article and a flat corrugated cardboard 92 are manually attached using an adhesive. By the combination, a cushioning material 94 having a laminated structure having the article storage recess 93 is formed. The cushioning material 94 is often used in an outer case 99.

In the step shown in FIG. 19 (b), a band-shaped corrugated cardboard 96 on which punching portions 90 and continuous flat portions 95 are previously formed at predetermined intervals in accordance with the outer shape of the stored item is manually folded into a folding screen shape. , Adhesive tape 97 on the laminated end face
Is adhered and fixed so as not to spread, thereby forming a cushioning member 98 having a laminated structure having a concave portion 93 for storing articles. And, like the cushioning material 94, the cushioning material 98 is often used in the outer case 99.

Further, depending on the articles to be stored, a method of assembling a cushioning material by manually three-dimensionally assembling a corrugated cardboard having punched portions formed in accordance with the shape of a predetermined article is employed, or FIG. As shown in the figure, a plurality of cardboard materials 92 cut to a predetermined size
are bonded together with an adhesive to form a cushioning material 94a having a laminated structure, and these cushioning materials 94a are bonded to the corrugated cardboard material 96 with an adhesive.
a.

[0010]

As described above, the conventional corrugated cardboard cushioning material has a low mass productivity and a high cost because most of the manufacturing process is performed by complicated manual work. Further, since an adhesive or a pressure-sensitive adhesive tape made of petroleum is used as a means for maintaining the laminated structure of the corrugated board material, if it is incinerated or discarded easily after use, there is a risk of causing environmental problems.

An object of the present invention is to provide a cardboard packaging cushioning material and a packaging container with a cushioning function which are easy to manufacture, have excellent mass productivity, and do not cause environmental problems after use. It is in.

[0012]

SUMMARY OF THE INVENTION The present invention relates to a cushioning material for packaging formed by folding a corrugated cardboard into a folding screen and stacking the folded corrugated cardboard, the stopper protruding like a tongue at the side edge portion of the corrugated cardboard. And a concave portion into which a stopper can be fitted is provided on the laminated end surface of the folded cardboard plate material, and the stopper is bent at the base end portion and fitted into the concave portion.

With this configuration, the cushioning material having a laminated structure can be formed only by folding the corrugated cardboard into a folding screen shape and fitting the stopper bent at the base end portion into the concave portion of the laminated end surface. Therefore, it is easy to manufacture, has excellent mass productivity, and does not use an adhesive or a sticking material, so that there is no risk of causing environmental problems after use.

Further, according to the present invention, a corrugated cardboard laminate having a storage space is formed by folding a part of a corrugated cardboard having a punched portion formed according to the outer shape of a stored article into a folding screen shape so that the punched portions overlap. A packaging cushioning material formed by surrounding at least one circumference of the corrugated cardboard laminate with the rest of the corrugated board, wherein a stopper protruding like a tongue is provided at the end edge of the remaining corrugated board. A recess is provided on the exposed surface of the folded corrugated cardboard, into which a stopper can be fitted, and the stopper is bent at a base end portion and fitted into the recess.

With this configuration, a part of the corrugated cardboard is folded into a folding screen to form a corrugated cardboard laminate, and the rest of the corrugated cardboard board surrounds the outer periphery of the corrugated cardboard laminate, and the end of the corrugated cardboard laminate is formed. By simply bending the stopper at the base end portion and fitting it into the concave portion of the exposed surface of the corrugated cardboard, a cushioning material having a structure in which the corrugated cardboard laminate having a storage space is surrounded by the corrugated cardboard can be formed.
As described above, it is easy to manufacture, has excellent mass productivity, and does not use an adhesive or a sticky material, so that there is no risk of causing environmental problems after use. In addition, because of the structure in which the corrugated cardboard laminate is surrounded by the corrugated cardboard material, the strength is high and the shape stability is excellent.

The present invention also provides a storage space by folding a part of a corrugated cardboard provided with a punched portion and a flat portion formed in accordance with the outer shape of a stored article into a folding screen shape so that the punched portion overlaps. A packaging container with a buffering function formed by forming a corrugated cardboard laminate having at least one round of the outer periphery of the corrugated cardboard laminate with a flat portion of the corrugated cardboard plate material, wherein It is characterized in that a stopper protruding in a tongue shape is provided, a concave portion in which the stopper can be fitted is provided on an exposed surface of the laminated corrugated cardboard, and the stopper is bent at a base end portion and fitted into the concave portion.

With such a configuration, the outer periphery of the corrugated cardboard laminate formed by folding a part of the corrugated cardboard into a folding screen so that the punched portions overlap each other is surrounded by the flat portion of the corrugated cardboard, and By simply bending the stopper at the end portion at the base end portion and fitting it into the concave portion of the exposed surface of the corrugated cardboard, a packaging container with a buffer function can be formed, so it is easy to manufacture and excellent in mass productivity, Since no adhesive or adhesive is used, there is no risk of causing environmental problems after use. In addition, since the cardboard laminate having a storage space is surrounded by a cardboard board, an outer case is not required, the strength is high, and the shape stability is excellent.

Further, by providing the stopper with a portion which is widened from the base end portion to the tip end portion,
When the stopper is bent at the base end portion and fitted into the concave portion of the laminated end surface or the exposed surface, it is possible to prevent the folded corrugated cardboard from being opened by its elastic force, so that the shape stability of the cushioning material is improved.

Further, a half cut portion for preventing return of the bent stopper may be provided at a base end portion of the stopper. Here, the half-cut portion refers to a portion where a cut is made while leaving a part of a corrugated board made of a plurality of layers. Accordingly, when the stopper is bent at the base end portion and fitted into the concave portion of the laminated end surface or the exposed surface, the stopper can be prevented from being detached from the concave portion by the elastic force of the corrugated cardboard, so that the shape of the cushioning material can be stabilized. The performance is improved.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view showing the cushioning material of the first embodiment, FIG. 2 is a development view of the cushioning material, FIG. 3 is an explanatory view showing an assembly process of the cushioning material, and FIG. 4 is a perspective view showing an assembly process of the cushioning material. is there.

As shown in FIG. 1, the cushioning material 10 of the present embodiment has a substantially U-shaped corrugated cardboard laminated structure, and a fitting space 11 into which another cushioning material can be fitted is formed on the side surface. I have. The cushioning material 10 is formed by folding a band-shaped corrugated board 10a as shown in FIG. 2 into a folding screen shape as shown in FIG. 3, and laminating it, and protruding in a tongue shape from a side edge portion of the corrugated board 10a. The stopper 10b is formed by bending the stopper 10b at the base end portion and fitting the stopper 10b into the concave portion 12 formed on the laminated end surface of the folded corrugated cardboard plate 10a.

As shown in FIG. 2, punched portions 10d are formed at regular intervals in the corrugated board 10a, folds 10c are formed at positions crossing the punched portions 10d, and folds 10h are formed between the punched portions 10d. Is formed. Cutouts 10e are formed at regular intervals on both side edges of the corrugated board 10a. The cutouts 10e gradually widen as the distance from the stopper 10b increases. Crease 10c
Is a structure in which a cut is made in the corrugated board 10a while leaving only one surface material. A fold 10h is formed in the corrugated board 10a by an intermittent cut 10 parallel to the fold 10c.
x and a cut 10y at right angles to this, and a hinge 10w
Is formed.

As shown in FIG. 3, each fold 10
When c and 10h are alternately bent to fold the corrugated board 10a into a folding screen shape, the punched portions 10d overlap to form the fitting space 11, and the cutout portions 10e overlap to form the concave portion 12 in the laminated end surface. After this, the stopper 10
The cushioning material 10 having a laminated structure can be formed only by bending b at the base end portion and fitting it into the concave portion 12.

As described above, the cushioning material 10 is extremely simple to manufacture and excellent in mass productivity. In addition, since it can be manufactured without using an adhesive or a sticking material, there is no possibility of causing environmental problems after use.

The stopper 10b has a tapered shape in which the width is increased from the base end portion to the distal end portion, and the concave portion 12 has a tapered shape corresponding to the tapered shape.
Is inserted into the concave portion 12, and the folded corrugated board 1
Oa can be prevented from opening due to its elastic force, and the cushioning material 10 has excellent shape stability. The stopper 10
In addition to this shape, b may be a shape such as a curved tapered shape or a T-shape that is widened from the base end to the front end.

At the base end of the stopper 10b, there is provided a half cut portion 10f in which a cut is made leaving a part of the corrugated cardboard 10a composed of a plurality of layers.
0b is bent at its base end portion and fitted into the concave portion 12, the stopper 10b can be prevented from coming off from the concave portion 12 by the elastic force of the corrugated cardboard 10a.
0 shape stability is improved.

As described above, since the cushioning member 10 has a laminated structure excellent in shock-absorbing function and has the fitting space 11, as shown in FIG. By combining with the space 11, it is also possible to form a cross-shaped cushioning material without an adhesive, and it is excellent in a protection function and a cushioning function for a three-dimensional article.

The size and shape of the fitting space 11 are as follows.
Since the present invention is not limited to this, it can be arbitrarily determined by changing the size and shape of the punched portion 10d. For example, as shown in FIG. 5B, a square hole-shaped fitting space 16 is provided. If the cushioning material 13 and the cushioning material 15 having the quadrangular prism-shaped protrusions 14 are manufactured, the cushioning materials 13 and 15 are connected to each other by fitting the protrusions 14 into the fitting space 16. A letter-shaped cushioning material can also be formed.

Next, a second embodiment of the present invention will be described with reference to FIGS. Buffer material 20 of the present embodiment
Is a rectangular parallelepiped shape as shown in FIGS. 6 and 7, and has storage spaces 21 and 22 in which articles to be stored can be fitted. The cushioning material 20 is formed by folding a corrugated board 20a as shown in FIG. 8 into a folding screen as shown in FIG.

As shown in FIG. 8, folds 20c and 20h, punched portions 21a and 22a, a punched portion 20d, and a flat portion 20e are formed at regular intervals on the corrugated board 20a. Is the punched part 20d
Is formed with a tongue-shaped stopper 20b which can be fitted into the stopper 20b. Further, a portion of the corrugated board 20a near the stopper 20b is provided with a fold 20 parallel to the folds 20c and 20h.
g is formed.

The fold 20g is formed on the corrugated board 20a by
The folds 20c and 20h have the same structure and function as the folds 10c and 10h shown in FIG. 2, respectively, by forming cuts 20x leaving only one surface material in a broken line shape.

As shown in FIG. 9A, the folds 20c,
20h are alternately bent to form a corrugated board 10a
Is folded into a folding screen shape, and as shown in FIG. 9 (b), a corrugated cardboard laminate 20f is formed on the flat surface portion 20e, and the rest of the corrugated cardboard plate material 20a surrounds the outer periphery of the corrugated cardboard laminate 20f. Is bent at the base end portion and fitted into the concave portion formed by the punched portion 20d, whereby the cushioning material 20 is formed. At this time, the punched part 2
The storage spaces 21 and 22 are respectively formed by the overlapping of 1a and 22a.

As shown in FIG. 10A, the storage space 2
1 is a shape whose diameter is reduced linearly toward the bottom surface,
As shown in FIG. 10B, a hemispherical storage space 23 whose diameter is reduced in a curved manner toward the bottom surface can be formed.

As described above, the cushioning material 20 is extremely simple to manufacture, and is excellent in mass productivity. In addition, since it can be manufactured without using an adhesive or a sticking material, there is no possibility of causing environmental problems after use. Further, since the cushioning material 20 has a structure in which the corrugated cardboard laminate 20f is surrounded by the corrugated cardboard plate material 20a, the cushioning material 20 has high strength and excellent shape stability.

Next, a third embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 11, the cushioning material 30 of the present embodiment has a shape such that two cushioning materials 20 are connected to each other, and includes storage spaces 31, 32 surrounded by a cardboard laminated structure. The cushioning material 30 is formed by folding a corrugated board 30a shown in FIG. 12 into a folding screen shape.

As shown in FIG. 12, the corrugated board 30a
Has a shape symmetrical about the fold line 30x and the cut line 30y, and the left and right portions have the same shape as the corrugated board 20a shown in FIG. Creases 30c, 30h, and 30g, punched portions 31a, 32a, and 30d, and a flat portion 30e are formed in left and right portions of the corrugated cardboard plate material 30a. A stopper 30b is formed. Crease 3
0c, 30h, and 30g are folds 2 shown in FIG.
It has the same structure and function as 0c, 20h, and 20g.

The left and right portions of the corrugated board 30a are shown in FIG.
As in (a), each fold 30c, 30h, 30
g, and alternately folded in a folding screen shape to form a corrugated cardboard laminate 30f on the flat portion 30e, surround the outer periphery of the corrugated cardboard laminate 30f with the rest of the corrugated cardboard plate material 30a, and then attach the stopper 30b to the base end portion. 11 and fitted into the recess formed by the punched portion 30d.
The shape shown in FIG. At this time, the punched portion 31
a and 32a overlap each other,
Storage spaces 31 and 22 are formed respectively. After this,
When the articles to be stored are stored in the storage spaces 31 and 22 and folded around the fold 30x, the cushioning material 30 shown in FIG. 11B is formed. Crease 30x is crease 30g
It has the same structure and function as.

The cushioning material 30, like the cushioning material 20 described above, is simple to manufacture, excellent in mass productivity, and does not use an adhesive or a sticky material, so that there is no risk of causing environmental problems after use. Further, since the storage spaces 31 and 32 are surrounded by the two cardboard laminated structures, the storage spaces 31 and 32 are high in strength, have good shape stability, and are excellent in the protection function and cushioning function of stored articles.

The cushioning material 30 is made of a corrugated cardboard plate material 30 having a symmetrical shape with respect to the folds 30x and the cuts 30y.
a is formed by folding, but is not limited to such a shape. By making the shape of the punched portions 31a and 32a of the left and right portions asymmetrical,
Each of the storage spaces 31 and 22 shown in FIG. 11 (a) may have an asymmetric shape.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 13, the packaging container 40 with a cushioning function of the present embodiment includes storage spaces 41 and 42 in a cardboard laminate 43 and has a top cover 44 that covers these spaces. Packaging container 40
Is formed by folding the cardboard board 40a shown in FIG. 14 in the procedure shown in FIG.

As shown in FIG. 14, the corrugated board material 40a
Have folds 40c, 40g, 40h,
1a, 42a, 40d and a plane portion 40e are formed,
A tongue-shaped stopper 40b that can be fitted into the punched portion 40d is formed at the end edge portion. Creases 40c, 40
g and 40h are folds 20c and 20h shown in FIG.
h, 20 g.

As shown in FIG. 15A, the folds 40c and 40h are alternately bent to form a corrugated board 4
0a is folded in a folding screen shape so that the punched portions 41a and 42a overlap each other to form a cardboard laminate 43 on the flat portion 40e, and the remaining flat portion 40 of the corrugated board 40a is formed.
e is bent at the fold 40g to surround the outer periphery of the corrugated cardboard laminate 43, and then, as shown in FIG.
Is bent at the base end portion, and fitted into a concave portion formed by a punched portion 40d located on the exposed surface of the corrugated cardboard board material 40a, thereby forming the packaging container 40.

At this time, since the punched portions 41a and 42a overlap, the storage spaces 41 and 42 are respectively provided.
Is formed, and the flat portion 4 is located at a position near the stopper 40b.
0e becomes the upper surface cover 44.

As described above, the packaging container 40 is extremely simple to manufacture and excellent in mass productivity. In addition, since it can be manufactured without using an adhesive or a sticking material, there is no possibility of causing environmental problems after use. The corrugated cardboard laminate 43 having the storage spaces 41 and 42 is moved to the flat portion 40 of the corrugated cardboard plate material 40a.
e, and the upper surface cover 44 that covers the storage spaces 41, 42 does not require an outer case, and has high strength and excellent shape stability.

Further, since the packaging container 40 has a structure in which the buffer container and the outer case are integrated, the work of storing the articles can be made more efficient, and printing can be performed on the outer surface. When the stopper 40b is fitted into the recess formed by the punched portion 40d, the stopper 40b may be adhered with an adhesive or fixed with an adhesive tape for reinforcement.

Stopper 40b and punched portion 40d
Has a shape that is widened from its base end portion toward its front end portion, so that when the stopper 40b is bent at its base end portion and fitted into the punched portion 40d of the exposed surface, the folded corrugated board 40a is deformed by its elastic force. Opening can be prevented.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 17, the packaging container 50 with a buffer function of the present embodiment includes a storage space 51 in a cardboard laminate 53, and has top covers 54 and 55 that cover these spaces. Packaging container 5
0 corresponds to the corrugated board 50a shown in FIG.
It is formed by folding in the procedure shown in FIG.

As shown in FIG. 18, the corrugated board 50a
Has folds 50c, 50g, 50h at regular intervals.
, Punched portions 51a and 50d, and a flat portion 50e, and a tongue-shaped stopper 50b that can be fitted into the punched portion 50d is formed at the end edge portion.

The corrugated board 50a is folded alternately at each of the folds 50c and 50h, and folded in a folding screen shape so that the punched portions 51a overlap each other, and a corrugated board laminate 53 is formed on the plane portion 50e near the middle. The flat part 50e located at the extreme end is placed on the
After the remaining flat portion 50a of the first cardboard 0a is bent at the crease 50g to surround the outer periphery of the cardboard laminate 53, the stopper 50
B is bent at the base end portion and fitted into a recess formed by a punched portion 50d located on the exposed surface of the corrugated board 50a, thereby forming the packaging container 50.

At this time, the punching portions 51a overlap each other to form a storage space 51, and the flat portion 50e located at the extreme end becomes the upper cover 54, and the flat portion 50e located closer to the stopper 50b is the upper cover 50e. 55
Becomes

As described above, the packaging container 50 is extremely simple to manufacture and excellent in mass productivity. In addition, since it can be manufactured without using an adhesive or a sticking material, there is no possibility of causing environmental problems after use. Further, the corrugated cardboard laminate 53 having the storage space 51 is connected to the flat portion 50 of the corrugated cardboard plate 50a.
e, and has two upper covers 54, 55 covering the storage space 51, so that an outer case is unnecessary, and the strength is higher and the shape is more stable than the packaging container 40 described above. The nature is also excellent.

Stopper 50b and punched portion 50d
Has a shape that is widened from its base end portion toward its front end portion. Therefore, when the stopper 50b is bent at its base end portion and fitted into the punched portion 50d of the exposed surface, the folded corrugated board 50a is elastically deformed. Opening can be prevented.

[0053]

According to the present invention, the following effects can be obtained.

(1) By using the cushioning material for packaging according to the first aspect, a cushioning material having a laminated structure can be formed by simply folding a corrugated cardboard into a folding screen shape, folding a stopper, and fitting the stopper into a concave portion of the laminated end surface. Since it is simple, excellent in mass productivity, and does not use an adhesive or a sticky material, there is no risk of causing environmental problems after use.

(2) With the cushioning material for packaging according to claim 2, a part of the corrugated cardboard is folded into a folding screen to form a corrugated cardboard laminate, and the rest of the corrugated cardboard surrounds the outer periphery of the corrugated cardboard laminate. By simply folding the cardboard and fitting it into the concave part of the exposed surface of the cardboard board material, it is possible to form a cushioning material having a structure in which a cardboard laminate having a storage space is surrounded by the cardboard board material, making it easy to manufacture and mass-producing. Because it is excellent and does not use adhesives or adhesives, there is no risk of causing environmental problems after use. Further, since the cardboard laminate having a storage space is surrounded by a cardboard board, the strength is high and the shape stability is excellent.

(3) The outer periphery of the corrugated cardboard laminate formed by folding a part of the corrugated cardboard into a folding screen shape so that the punched portions overlap with each other by the packaging container with a cushioning function according to the fourth aspect, and the outer periphery of the corrugated cardboard plate. The packaging container can be formed by simply enclosing the stopper at the end edge portion at the base end portion and fitting it into the concave portion of the exposed surface of the corrugated cardboard, so that the production is simple and mass production is possible. Since it is excellent in properties and does not use an adhesive or a sticky material, there is no possibility of causing environmental problems after use. In addition, since the cardboard laminate having a storage space is surrounded by a cardboard board, an outer case is not required, the strength is high, and the shape stability is excellent.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cushioning material according to a first embodiment.

FIG. 2 is a development view of the cushioning material of FIG.

FIG. 3 is an explanatory view showing an assembling step of the cushioning material of FIG. 1;

FIG. 4 is an explanatory view showing an assembling step of the cushioning material of FIG. 1;

FIG. 5 is a perspective view showing a use state of the cushioning material of FIG. 1;

FIG. 6 is a plan view of a cushioning member according to a second embodiment.

FIG. 7 is a bottom view of the cushioning member of FIG. 6;

FIG. 8 is a development view of the cushioning material of FIG. 6;

FIG. 9 is an explanatory view showing an assembling step of the cushioning material of FIG. 6;

10A is a cross-sectional view of a storage space portion of the cushioning material in FIG. 6, and FIG. 10B is a cross-sectional view illustrating another embodiment of the storage space.

FIG. 11 is a perspective view showing a cushioning member according to a third embodiment.

FIG. 12 is a development view of the cushioning material of FIG. 11;

FIG. 13 is a perspective view showing a packaging container according to a fourth embodiment.

14 is an exploded view of the packaging container of FIG.

FIG. 15 is an explanatory view showing an assembling step of the packaging container of FIG. 13;

FIG. 16 is a perspective view showing an assembling step of the packaging container of FIG. 13;

FIG. 17 is a perspective view showing a packaging container according to a fifth embodiment.

18 is an exploded view of the packaging container of FIG.

FIG. 19 is an explanatory view showing a manufacturing process of a conventional cushioning material.

FIG. 20 is an explanatory view showing a manufacturing process of a conventional cushioning material.

[Explanation of symbols]

10, 13, 15, 20, 30 Buffer material 10a, 20a, 30a, 40a, 50a Corrugated board material 10b, 20b, 30b, 40b, 50b Stopper 10c, 10h, 20c, 20h, 20g, 30c, 3
0h, 30g, 30x, 40c, 40g, 40h, 50
c, 50g, 50h Creases 10d, 20d, 21a, 22a, 30d, 31a, 3
2a, 40d, 41a, 42a, 50d, 51a Punched part 10e Notch part 10f Half cut part 10w Hinge part 11,16 Fitting space 12 Concave part 14 Projection part 20e, 30e, 40e, 50e Flat part 21, 22, 23, 31 , 32, 41, 42, 51 Storage space 20f, 30f, 43, 53 Corrugated cardboard laminate 10x, 10y, 20x, 30y Break 40, 50 Packaging container 44, 54, 55 Top cover

Claims (5)

[Claims] 1. A packaging cushioning material formed by folding a corrugated board material into a folding screen shape and stacking them,
A stopper protruding in a tongue-like shape is provided at a side edge portion of the corrugated cardboard plate material, a concave portion in which the stopper can be fitted is provided on a laminated end surface of the folded corrugated cardboard material, and the stopper is bent at a base end portion and fitted into the concave portion. A cushioning material for packaging characterized by being formed by being formed. 2. A corrugated cardboard laminate having a storage space by folding a part of a corrugated cardboard having a punched portion formed in accordance with the outer shape of a stored article so as to overlap the punched portion, A packaging cushioning material formed by surrounding at least one circumference of the corrugated cardboard laminate with the rest of the corrugated board material, wherein a stopper protruding in a tongue shape is provided at the end edge of the remaining corrugated board material, A cushioning material for packaging, characterized in that a recessed portion in which the stopper can be fitted is provided on an exposed surface of the folded cardboard plate material, and the stopper is bent at a base end portion and fitted into the recessed portion. 3. The stopper according to claim 1, wherein the stopper is provided with a portion widened from a base end portion to a tip end portion.
The cushioning material for packaging according to the above. 4. A corrugated cardboard laminate having a storage space by folding a part of a corrugated cardboard plate provided with a punched portion and a flat portion formed in accordance with the outer shape of a stored article into a folding screen shape so that the punched portion overlaps. A container having a cushioning function formed by forming a body and surrounding at least one circumference of the corrugated cardboard laminate with a flat portion of the corrugated cardboard; A stopper protruding in the shape of a tongue is provided, a concave portion in which the stopper can be fitted is provided on an exposed surface of the laminated cardboard plate material, and the stopper is bent at a base end portion and fitted into the concave portion. Wrapping container with cushioning function. 5. The packaging container with a cushioning function according to claim 4, wherein the stopper is provided with a portion widened from a base end portion to a tip end portion.