JP2002255157A - Packing box, cushioning material and production method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box which protects an item from a shock or vibration by using a paper cushioning material. SOLUTION: Cushioning members 31, 32, 33, 34 and 35, made of a paper material such as a liner and formed by folding the paper material alternatively in a waveform, are non-adherently placed kept in contact with each face of an item stored in a packing box 1 for absorbing a shock. by positioning the members 32, 33, 34 and 35 in a condition where the direction of their folding lines become perpendicular to the side face of the item to be protected, the strength in the perpendicular direction can be increased. The members 31, 32, 33, 34 and 35 can be formed by folding one sheet of paper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box having a cushioning material for protecting articles and a method of manufacturing the cushioning material, and more particularly to a method of manufacturing a packaging box and a cushioning material which is environmentally friendly.

[0002]

2. Description of the Related Art As a conventional packing box having a built-in cushioning material for protecting a product being transported from shock and vibration, there is a packing box using a cushioning material formed of styrene foam resin in a block shape. However, in recent years, with the increase in environmental protection, there has been a demand for a shift to low environmental load materials for cushioning materials of packing boxes. For example, in the case of a styrofoam resin, it has non-decomposability, and a heavy load on the environment such as the generation of toxic gas during combustion. Therefore, toxic gas is less likely to be generated even when buried or incinerated, and a buffer material made of a paper material that can be recycled by existing infrastructure has been used. For example, a corrugated cardboard material is used as a cushioning material formed in a wave shape.
There is a buffer as shown in Japanese Patent No. 1474.

[0003]

By the way, today, mail-order sales and direct sales via the Internet have become widespread, and products are often transported to purchasers. A cushioning material that has sufficient protection ability and is easily manufactured is required.

[0004] However, in the packing box having the cushioning body described in the above-mentioned publication, the cushioning material is arranged only on the lower surface of the article, so that it is not enough to protect general articles. The strength is not always sufficient. In addition, the end of the cushioning material is fixed, and it takes time and effort to attach the cushioning material to the packing box.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to provide a packaging box which can easily protect articles and is environmentally friendly. Also,
Another object of the present invention is to provide an environmentally friendly cushioning material that can be used for a packing box and can easily protect articles.

It is a further object of the present invention to provide a cushioning material which can be used in a packaging box to easily protect an article and to easily manufacture an environmentally friendly cushioning material. It is to provide a manufacturing method.

[0007]

According to the present invention, in order to solve the above-mentioned problems, in a packing box for storing articles, a paper cushioning material folded alternately in a wave shape is attached to the bottom surface of the articles by non-adhesion. A packaging box characterized by being arranged is provided.

[0008] In such a packaging box, a cushioning material which is easily formed by alternately folding a paper material in a wave shape is used, and this cushioning material is arranged on the bottom surface of the packaging box by non-adhesion, so that environmental load is reduced. Thus, it is possible to effectively absorb vertical shocks and vibrations on the article while reducing the manufacturing cost by saving the time and effort for assembling the cushioning material. In addition, for example, when this cushioning material is added to the bottom surface of the packing box and arranged on the side surface of the article so that the fold direction is vertical, the shock and vibration in the vertical direction and the horizontal direction of the article are absorbed, and Vertical strength can be increased.

Further, in the present invention, in a cushioning material for protecting an article placed and housed inside a packing box, a paper material is formed by alternately bending a paper material in a wave shape, and is disposed on the bottom surface of the article by non-adhesion. A cushioning material is provided.

Such a cushioning material is easily formed by alternately bending a paper material in a wave shape and is disposed on the bottom surface of the packing box by non-adhesion. Therefore, the environmental load and the manufacturing cost are reduced, and the cushioning material is used. It is possible to effectively absorb shocks and vibrations in the vertical direction to the article while being easy to assemble. In addition, for example, when this cushioning material is added to the bottom surface of the packing box and arranged on the side surface of the article so that the fold direction is vertical, the shock and vibration in the vertical direction and the horizontal direction of the article are absorbed, and Vertical strength can be increased.

Further, according to the present invention, in the method of manufacturing a cushioning material incorporated in a packaging box to protect articles, the folding parts are alternately bent in a wave shape so that the folds are arranged in the respective directions. A method of manufacturing a cushioning material is provided, wherein first and second cushioning members for being arranged on a horizontal plane and a vertical plane of the article are integrally formed using a paper material.

In such a method of manufacturing a cushioning material, a first cushioning member formed by alternately folding a paper material in a wave shape is arranged on a horizontal surface of an article, and a second cushioning member formed in the same manner is formed.
When the cushioning members are arranged on a vertical surface so that the folds are in the vertical direction, these cushioning members are integrally molded from one sheet of paper, so that shocks and vibrations in the horizontal and vertical directions are reduced. It is possible to efficiently manufacture a cushioning material that can effectively absorb and increase the strength in the vertical direction and has a low environmental load.

Further, according to the present invention, in the method for manufacturing a cushioning material incorporated in a packaging box to protect articles, the shape is such that the folds are alternately bent in a wave shape so as to be orthogonal to the respective arrangement directions. A first, a second, a third and a fourth cushioning member for arranging on each side of the article, and at either end of the first, second, third and fourth cushioning members Fifth and sixth cushioning members for being disposed on the upper surface and the lower surface of the article, respectively, being arranged so as to be bent alternately in a wave shape so that each of the cushioning members and the fold are in the same direction. Is manufactured integrally using a paper material.

In such a method of manufacturing a cushioning material, the first, second, third, and fourth cushioning members formed by alternately bending the paper material in a wave-like manner are formed such that the folds are vertical. When the fifth and sixth cushioning members formed in the vertical plane and similarly formed are arranged on the horizontal surface of the article, these cushioning members are integrally molded from one sheet of paper, so that the horizontal direction And can effectively absorb shocks and vibrations in the vertical direction and increase the strength in the vertical direction.
It is possible to efficiently manufacture a cushioning material having a low environmental load.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 is a diagram showing an embodiment of a packing box of the present invention. FIG. 2 is a side sectional view of the packing box shown in FIG. 1 as viewed from the direction of arrow A. FIG. 3 is a plan view of the packing box. Hereinafter, the packing box of the present invention will be described with reference to FIGS. 1, 2 and 3.

A packing box 1 shown in FIGS. 1 to 3 is for storing, transporting and storing articles 2 therein, and a cushioning member for protecting the articles 2 from impacts and the like. 31, 32, 33, 34, 35, and 36 are arranged. The packing box 1 is formed of, for example, a cardboard material, and the buffer members 31 to 36 are formed of, for example, a paper material such as a cardboard liner paper.
As shown in FIG. 7, the structure is alternately bent in a wave shape and has a triangular shape having a continuous cross section. The cushioning members 31 to 36 are arranged between the packing box 1 and the article 2 so as to be in contact with both. The cushioning member 31 is on the top surface of the article 2, the cushioning members 32 to 35 are on the side surfaces, and the cushioning member 36 is On the bottom surface, they are arranged without being bonded to the packing box 1 and the article 2, respectively.

As described above, according to the present invention, the cushioning members 31 to 3 formed by alternately bending the paper material in a wave shape.
6 are arranged inside the packing box 1, but these cushioning members 31 to 36 are arranged, for example, on the bottom surface or the top surface of the packing box 1 so as to reduce the impact of the article 2 in the vertical direction. With the fold direction set to be vertical, it is also arranged on the inner side surface of the packing box 1 like the cushioning member 32, for example, so as to mitigate horizontal shocks and increase the strength of the packing box 1 in the vertical direction. Plays.

Here, the function of reducing the impact on the article 2 will be described. First, FIG. 4 is a view for explaining deformation of the cushioning member 3 when an impact is applied to the article 2. FIG. 4 shows a case in which the cushioning members 3 are alternately bent in a wave shape so as to have a continuous triangular cross section, and the cushioning members 3 are arranged so that the folds contact the bottom surface of the article 2. ing. Also, ranges 41, 42 and 43
Indicates a range in which the cushioning member 3 expands and contracts. This figure 4
As shown in FIG.
In this case, the shock-absorbing member 3 which is non-adhesively peelable is stretched in the area 42 directly receiving the impact and contracts in the areas 41 and 43. Due to the expansion and contraction of the cushioning member 3, the impact force in the vertical direction on the arrangement surface of the cushioning member 3 is dispersed, and damage to the article is prevented.

FIG. 5 is a diagram for explaining the difference between partial buffering and full buffering. FIG. 5A is a diagram illustrating a partial buffer, and FIG. 5B is a diagram illustrating an entire buffer. FIG. 5 (a)
As shown in the figure, when the bottom surface of the article 2 is partially in contact with the cushioning member 3, for example, when styrene foam or the like is used at both ends of the bottom surface of the article as the cushioning member 4, the unused portion is The shock is not absorbed and there is a high risk of damage. On the other hand, as shown in FIG.
Since the contact is made with the entire bottom surface of the article 2, the impact is dispersed, and the damage of the article 2 can be effectively prevented.

In addition to effectively absorbing and protecting the impact force when the article is applied in the horizontal direction, a cushioning material formed by alternately bending the article into a triangular wave shape is provided on the side of the article. By arranging the folds in the vertical direction, strength is obtained in the vertical direction of the packing box. Such an arrangement of the cushioning material is effective, for example, when stacking and using packing boxes.

Here, FIG. 6 is a diagram showing an example when the packing boxes 1 are stacked. The cushioning members 32 to 35 are arranged on each side surface of the article 2, and the folding direction is arranged in the vertical direction. For this reason, the strength against the load in the vertical direction is increased, and the packing boxes 1 can be stacked and used, and the space can be effectively used when the packing box 1 is stored or transported. In addition, since the paper material is used, the packing box is lightened, and labor for moving the packing box is reduced.

In the packing box 1 according to one embodiment of the present invention described above, the cushioning members 31 to 36 have a triangular shape, but the present invention is not limited to this. Here, FIG. 7 shows another embodiment of the cushioning material used for the packing box of the present invention. 7A shows a case where the cross section is folded into a trapezoidal shape, FIG. 7B shows a case where the cross section is folded so as to have a curved shape, and FIG. Each case is shown as broken. Each of these cushioning materials is formed by simply folding a paper material alternately along a parallel crease, absorbing a shock perpendicular to the arrangement surface,
Each has a function of increasing the strength in the fold direction. Since the impact absorption capacity and the ability to increase the strength, the amount of paper material required, etc. differ depending on such a difference in shape, the strength and size of the packing box to be arranged, the characteristics of the article to be protected, and the use It is desirable to select the shape of the cushioning material in consideration of properties such as strength of the paper material, price, ease of processing, and the like.

Further, for example, when there is a bias in the load on the bottom surface of the article, particularly in a portion where a large load is applied, by using a paper material thicker than the other portions, the strength can be increased against a large load. Can be maintained. Further, another paper material having high strength may be used for this portion. In addition, a plurality of cushioning materials,
They may be used in layers so that the peaks coincide. When a plurality of cushioning materials are used in an overlapping manner, by overlapping the cushioning materials so that the fold directions of the overlapping cushioning materials are orthogonal to each other, the impact in the vertical direction is absorbed, and at the same time, the two cushioning materials are perpendicular to each other. It is possible to increase the strength in the direction.

As described above, the cushioning material used in the packing box of the present invention can be easily formed by simply bending the paper material alternately along the parallel folds, and can be used for the article to be packed. Has the ability to effectively absorb shock and vibration. Further, since the bonding is not performed when the cushioning material is incorporated into the inside of the packing box, the efficiency of the assembling work is improved. Furthermore, by disposing such a cushioning material on the side of the article with the fold direction vertical, in addition to the bottom and top faces of the article, the shock and vibration in the horizontal direction of the article can be absorbed and the This is effective when, for example, packing boxes are stacked and used. In addition, by using paper as the material of the cushioning material, it is difficult to release harmful substances to nature in the treatment such as burning and landfill after use, and it is possible to recycle using existing infrastructure, The environmental load can be reduced as compared with a styrene foam material or the like. In addition, the use of the paper material suppresses an increase in the weight of the packing box due to the mounting of the cushioning material, and can reduce the labor for carrying the packing box.

By the way, in the case of such a cushioning material which is alternately bent in a wave shape, when the cushioning material is arranged around the article, it can be manufactured by folding a plurality of adjacent cushioning materials from one sheet of paper. It is. As such an example, FIG. 8 shows one cushioning material placed on the horizontal and vertical surfaces of the article.
The case of manufacturing from a sheet of paper is shown. FIG. 8A shows a case where the paper material forming each cushioning material is developed, and FIG. 8B shows a case where each cushioning material is assembled.

FIG. 8 (a) is a development view of the paper material 5 forming the cushioning material arranged on the horizontal and vertical surfaces of the article. The horizontal member 51 and the vertical member which become the horizontal and vertical surfaces respectively are shown. 52 is formed from one sheet of paper material 5. When manufacturing the cushioning material arranged on the horizontal plane and the vertical plane, first, the paper material 5 is cut into a shape in which the respective members are connected as described above. The size of each member is determined according to the shape of the packing box to be mounted or the article to be protected. Next, a slit 55 is provided along a boundary line 53 between the horizontal plane member 51 and the vertical plane member 52 so that each member is point-connected at regular intervals at the connection portion 54. In the drawing, a fold line 5a indicated by a one-dot chain line and a fold line 5b indicated by a two-dot chain line respectively indicate a valley portion and a crest portion of a fold for alternately bending when assembling as a cushioning material.

For example, in the case of a cushioning material having a triangular cross section, as shown in FIG. 8A, the slits are formed so that the connecting portion 54 is located at a fold position of a valley or a ridge in each member. 55 are formed. Next, the paper material 5 is folded along the folding lines 5a and 5b so as to have a triangular cross section, and is further formed into a 90 ° valley fold along the boundary line 53. Here, the valleys and crests of the folds indicated by the fold lines 5a and 5b are alternately formed on each member with the boundary line 53 as a boundary.

With such an assembly, as shown in FIG. 8B, buffer members 510 and 52 for protecting the horizontal plane (bottom plane in the figure) and the vertical plane (side plane) of the article, respectively.
0 is produced. Each of the buffer members 510 and 520 has a triangular cross section, and is connected by the connecting portion 54. Manufactured cushioning members 510 and 520
Is incorporated inside the packing box by, for example, non-adhesion, contacts the bottom and side surfaces of the article, absorbs vertical and horizontal shocks and vibrations, respectively, and makes the fold direction vertical in the cushioning member 520. Therefore, it functions to reinforce the strength in the vertical direction. As described above, by manufacturing the adjacent cushioning members 510 and 520 from one sheet of paper 5, the efficiency of the production of the cushioning material and the work of assembling it into the packing box can be improved.

Further, as described above, a cushioning material for protecting not only the horizontal surface and the vertical surface of the article, but also the six side faces, the bottom face and the top face, of the article is manufactured from one sheet of paper. It is also possible. FIG. 9 shows an example of such a cushioning material.
FIG. 7 is a development view of a paper material in a case where a buffer material for six sides of a packing box is manufactured from one sheet of paper material.

In the developed view shown in FIG. 9, the side members 61, 62, 63 and 6 serving as cushioning members are arranged on the side of the article.
4 and a top surface member 65 disposed at both ends of the side surface member 62 and serving as a cushioning material disposed on the top surface and the bottom surface of the article, respectively.
And the bottom member 66 are formed of one sheet of paper material 6. In the drawing, a fold line 6a indicated by a dashed line and a fold line 6b indicated by a two-dot chain line respectively indicate a valley portion and a crest portion of a fold for alternately bending when assembled as a cushioning material. Further, the folding line 6c is formed by each side member 61.
It forms a boundary of ~ 64 and is a valley of a fold. Here, the adjacent portion between the top surface member 65 and the side member 62 and the adjacent portion between the bottom member 66 and the side member 62 are shown in FIG.
As in the case of the paper material 5 shown in FIG. 5, a plurality of slits 68a are formed so that each member is point-connected at the connection portions 67a and 67b.
And 68b are provided.
a and 6b are formed alternately.

Such a paper material 6 is formed by folding lines 6a and 6a
B is folded so as to have a triangular cross section along b, and further folded at 90 ° valley along the folding line 6c. By the above assembly, from one piece of paper, all sides, top,
The cushioning material that protects the bottom surface is manufactured and incorporated by non-adhesion into the inside of the packing box.It contacts the bottom surface, top surface and all sides of the article, absorbs each shock and vibration, and Performs the function of reinforcing strength.

As described above, by manufacturing the cushioning material arranged on all side surfaces, the top surface, and the bottom surface of the article from one sheet of paper material 6, the production efficiency of the cushioning material is further improved, and the work efficiency at the time of assembling is improved. Also improve.

In the above-described paper material 6, the top surface member 65 and the bottom surface member 66 are provided at both ends of the side member 62, but are provided at any end of the other side members 61, 63 and 64. May do it. 8 and 9, the method of folding the cushioning member so that the cross section of the cushioning member has a triangular shape has been described. However, the trapezoidal shape and the curve shown in FIGS. 7A, 7B, and 7C are illustrated. The cross section may be bent so as to have another shape such as a shape and a rectangular shape.

In the above description, the liner paper is used as the cushioning material. However, other paper materials such as a cardboard material formed of the liner paper may be used. Although the packing box is a cardboard box, the present invention can be applied to a wooden box and a metal box. Also, by using recycled paper as the paper material used for the cushioning material, it is possible to contribute to resource recycling.

[0035]

As described above, in the packing box of the present invention, the cushioning material which is easily formed by alternately bending the paper material in a wave shape is used, and this cushioning material is attached to the bottom surface of the packing box by non-adhesion. With the arrangement, it is possible to effectively absorb vertical impacts and vibrations on the article while reducing the environmental load, saving the labor of incorporating the cushioning material and suppressing the production cost. In addition, for example, when this cushioning material is added to the bottom surface of the packing box and arranged on the side surface of the article so that the fold direction is vertical, the shock and vibration in the vertical direction and the horizontal direction of the article are absorbed, and Vertical strength can be increased.

Further, in the cushioning material of the present invention, the paper material is easily formed by alternately bending the paper material in a wave shape, and is disposed on the bottom surface of the packing box by non-adhesion. While being easily incorporated into a box, it is possible to effectively absorb vertical shocks and vibrations to the article. In addition, for example, when this cushioning material is added to the bottom surface of the packing box and arranged on the side surface of the article so that the fold direction is vertical, the shock and vibration in the vertical direction and the horizontal direction of the article are absorbed, and Vertical strength can be increased.

Further, in the method for producing a cushioning material of the present invention,
A first cushioning member formed by alternately folding a paper material in a wave shape is arranged on a horizontal surface of an article, and a second cushioning member similarly formed is arranged on a vertical surface so that a fold is in a vertical direction. In this case, since these cushioning members are integrally molded from a single sheet of paper, the shock and vibration in the horizontal and vertical directions can be effectively absorbed, and the strength in the vertical direction can be increased. It is possible to efficiently manufacture a cushioning material with a low load.

In the method of manufacturing a cushioning material according to the present invention, the first, second, third and fourth cushioning members formed by alternately bending the paper material in a wavy manner have the folds in the vertical direction. In the case where the fifth and sixth cushioning members formed in the same manner are arranged on the vertical plane and the similarly formed fifth and sixth cushioning members are arranged on the horizontal plane of the article, these cushioning members are integrally molded from one sheet of paper material and manufactured. It is possible to efficiently manufacture a shock absorbing material having a low environmental load, which can effectively absorb shocks and vibrations in the horizontal direction and the vertical direction and increase the strength in the vertical direction.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a packing box.

FIG. 2 is a side sectional view of a packing box.

FIG. 3 is a plan view of a packing box.

FIG. 4 is a diagram showing deformation of a cushioning member when an article is subjected to an impact.

FIG. 5 is a diagram showing a difference between a partial buffer and a full buffer;
(A) is a figure which shows a partial buffer, (b) is a figure which shows the whole buffer.

FIG. 6 is a diagram showing an example when stacking packing boxes.

7A and 7B are diagrams showing a modification of the cushioning material, wherein FIG. 7A shows a trapezoidal shape, FIG. 7B shows a curved shape, and FIG. 7C shows a rectangular modification.

8A and 8B are diagrams showing a case where a buffer material arranged on a horizontal plane and a vertical surface of an article is manufactured from one sheet of paper, and FIG. 8A shows a case where a paper material forming each buffer material is developed. (B)
Indicates the case where each buffer material is assembled.

FIG. 9 is a view showing a development view in the case where buffer materials for six sides of the packing box are manufactured from one sheet of paper.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... packing box, 2 ... articles, 3 ... cushioning members, 4 ... cushioning members, 5, 6 ... paper materials, 5a, 5b, 6a, 6b, 6
c: folding line, 31-36 ... cushioning member, 41-43 ...
... Range of expansion and contraction, 51... Horizontal plane member, 52... Vertical plane member, 53... Boundary line, 54... Connection part, 55... Slit, 510 520. , 65 ... top member, 66 ... bottom member, 67a,
67b connection part, 68a, 68b slit

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) B65D 81/107 BSR B65D 81/04 BSR

Claims (20)

[Claims] 1. A packing box for storing articles, wherein a paper cushioning material alternately folded in a wave shape is arranged on the bottom surface of the article by non-adhesion. 2. The packing box according to claim 1, wherein the cushioning member is arranged on a bottom surface of the article, and is arranged so that a fold direction is perpendicular to a side surface of the article. 3. The packing box according to claim 1, wherein the cushioning material is made of liner paper. 4. The packing box according to claim 1, wherein the cushioning material is made of a cardboard material. 5. When an uneven load is applied to the bottom surface of the packing box in which the cushioning material is disposed, the thickness of the cushioning material in a portion to which the uneven load is applied is made thicker than other portions. The packing box according to claim 1, wherein 6. The packing box according to claim 1, wherein the cushioning material is integrally molded when disposed on at least two adjacent surfaces around the article. 7. The packing box according to claim 1, wherein the cushioning material is arranged on the upper surface and the lower surface of the article, and is arranged so that a fold direction is perpendicular to four side faces of the article. . 8. The packing box according to claim 7, wherein the cushioning members arranged on the upper surface, the lower surface, and the four side surfaces of the article are all integrally formed. 9. A cushioning material for protecting articles stored in a packing box, the paper being formed by alternately bending a paper material in a wave shape and being disposed on the bottom surface of the article by non-adhesion. And cushioning material. 10. The cushioning material according to claim 9, wherein the cushioning member is arranged on a bottom surface of the article and arranged so that a fold direction is perpendicular to a side face of the article. 11. The cushioning material according to claim 9, wherein the cushioning material is formed using liner paper as the paper material. 12. The cushioning material according to claim 9, wherein the cushioning material is formed by using a cardboard material as the paper material. 13. The cushioning material according to claim 9, wherein when an unbalanced load is applied to the bottom surface of the packing box, a thickness of the portion to which the unbalanced load is applied is thicker than other portions. 14. The cushioning material according to claim 9, wherein the cushioning material is integrally molded when disposed on at least two adjacent surfaces around the article. 15. An article disposed on an upper surface and a lower surface of the article,
10. The cushioning material according to claim 9, wherein the fold direction is arranged to be perpendicular to four side surfaces of the article. 16. The cushioning material according to claim 15, wherein members arranged on an upper surface, a lower surface, and four side surfaces of the article are all integrally molded. 17. A method of manufacturing a cushioning material incorporated in a packaging box to protect an article, wherein the article has a horizontal plane alternately bent in a wave shape so that the folds are arranged in the respective directions. And a method of manufacturing a cushioning material, wherein first and second cushioning members to be arranged on a vertical surface are integrally molded using a paper material. 18. The paper material, wherein a plurality of slits are formed between the first buffer member and the second buffer member so that the buffer members are connected at regular intervals. The method for producing a cushioning material according to claim 17, wherein 19. A method of manufacturing a cushioning material incorporated in a packaging box for protecting articles, wherein the folds are alternately bent in a wave shape so as to be orthogonal to the respective arrangement directions. First, second, third and fourth for placement on each side of the article
And at both ends of the first, second, third and fourth cushioning members, and are alternately bent in a wave-like manner so that each of the cushioning members and the fold are in the same direction. A method of manufacturing a cushioning material, characterized by integrally forming, using a paper material, fifth and sixth cushioning members, each of which has a different shape and are respectively disposed on the upper surface and the lower surface of the article. 20. In the paper material, each of the fifth and sixth cushioning members and any one of the first, second, third and fourth cushioning members adjacent thereto is provided with the respective one of the above. 20. The manufacturing method according to claim 19, wherein a plurality of slits are formed so that the buffer members are connected at regular intervals.