JP2001019051A - Cushioning material made of corrugated board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushioning material made of corrugated board, which is convenient for transport and storage because a base board has a simple and flat sheet-like structure, which can easily be assembled for packing work at a packing site, and which is excellent in cushioning characteristics. SOLUTION: This cushioning material made of corrugated board can be assembled simultaneously with the insertion of a product into a packing case and has such a structure that the shape of the cushioning material can be retained in the packing case due to a first protrusion, a second protrusion and a third protrusion which are provided at each side of a bottom wall. Accordingly, the cushioning material is excellent in cushioning characteristics and, by arranging the direction of an corrugation line J of the corrugated board so as to intersect obliquely with four sides of the bottom wall, the directions of the corrugation lines have the same inclination on side walls at the respective sides of the bottom wall. As a result, the four side walls hold an equal strength, respectively, and cushioning characteristics stable in any directions are imparted to the cushioning material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material made of cardboard, which is suitable for packing home electric appliances, particularly rectangular parallelepiped products.

[0002]

2. Description of the Related Art In recent years, cardboard cushioning materials have been often used for packing home electric appliances.

[0003]

However, in the conventional structure, the structure becomes complicated to obtain a sufficient buffer effect,
The assembling and packing work of the cushioning material is troublesome, resulting in high cost. In addition, there is a problem that the pre-assembled cushioning material is bulky and inconvenient in terms of transportation and storage space.

The present invention solves the above-mentioned conventional problems. The structure of the board is simple and the sheet is flat, which is convenient for transportation and storage. An object of the present invention is to provide a cushioning material made of cardboard which is excellent in quality.

[0005]

In order to achieve this object, a cardboard cushioning material according to the present invention has a rectangular bottom wall made of corrugated cardboard and a side wall connected to each of the four sides, and a top plate at the upper end of the side wall. The bottom wall is provided with a first projection which is cut out of the side wall and protrudes outward, the bottom wall is provided with a second projection which is cut out of the bottom wall and protrudes outward, and the side wall is formed on the top plate. A third projection which is notched and protrudes outward is provided, and the step of the corrugated cardboard is obliquely intersected with four sides of the bottom wall.

[0006] With this configuration, it is convenient to transport and store the board, assemble the cushioning material made of cardboard and insert the product into the packaging box at the same time. In addition, stable and excellent buffering properties can be obtained.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION
A side wall is continuously provided on each of four sides of a square bottom wall made of corrugated cardboard, an upper surface plate is continuously provided on an upper end of the side wall, and a first projection is provided on the bottom wall, the side wall being cut out and projecting outward. Are provided with second projections which are cut out of the bottom wall and protrude outward, and the upper plate is provided with third projections which are cut out of the side wall and protrude outward. It is characterized by crossing obliquely with the substrate.Since the structure of the substrate is simple and flat, it is convenient for transportation and storage, and the top surface is open when the product is placed on the substrate. When the product is inserted into the packaging box, the side walls of each side of the board are erected, and after the product is inserted, simply bending the top plate over the product completes the buffer packaging. The product can be inserted simultaneously into the packaging work The structure is such that the shape of the cushioning material is maintained by the first projection, the second projection, and the third projection on each side in the packaging box, so that the cushioning property is excellent. In addition, since the step direction of the cardboard is obliquely intersected with the four sides of the bottom wall, the step direction of the side wall of each side becomes the same inclination, and the four side walls each maintain the same strength. This has the effect that stable buffering properties can be obtained in any direction.

According to a second aspect of the present invention, a side wall is continuously provided on each of four sides of a rectangular bottom wall made of cardboard, an upper surface plate is continuously provided on an upper end of the side wall, and the side wall is notched on the bottom wall. A first projection protruding outward, a second projection protruding outward with a cutout bottom wall on the side wall, and a third projection protruding outward with the side wall cutout on the top plate. And a through hole is provided at the tip of each of the first, second, and third projections. Convenient for storage, the product is placed on the board and inserted into a packaging box with an open top to raise the side walls on each side of the board, and after the product is inserted, the top plate is placed on top of the product. The buffer packaging can be completed just by bending, so assemble the cardboard cushioning material and put it in the packaging box. The product can be inserted at the same time, the packing work is easy and the workability is good, and the shape of the cushioning material is held in the packaging box by the first, second and third protrusions on each side. By providing a through hole at the tip of the first projection, the second projection, and the third projection, each projection when bending the side wall and the top plate is provided. It has the effect of reducing the resistance of the tip and allowing easy bending.

According to a third aspect of the present invention, a side wall is continuously provided on each of four sides of a rectangular bottom wall made of cardboard, an upper surface plate is continuously provided on an upper end of the side wall, and the side wall is notched on the bottom wall. A first projection protruding outward, a second projection protruding outward with a cutout bottom wall on the side wall, and a third projection protruding outward with the side wall cutout on the top plate. And a small projection formed by cutting out the top plate at the top of the side wall and projecting outward.The structure of the board is simple and flat, so it is convenient for transportation and storage. With the product placed on the board, it is inserted into a packaging box with an open top so that the side walls of each side of the board are erected, and after inserting the product, the top plate is simply bent over the product. As the buffer packaging is completed, assemble the cardboard cushioning material and put it in the packaging box. The product can be inserted at the same time, the packing work is easy and the workability is good, and the shape of the cushioning material is held in the packaging box by the first, second and third protrusions on each side. It has excellent cushioning properties, and the top plate is cut off at the top of the side wall and a small protrusion protruding outward by a U-shaped notch facing the top plate is provided so that the top plate can be placed on the product. It increases the snagging resistance inside the upper end portion of the small projection when bent, and reduces the restoring force of the top plate by this resistance, improves the holding state of the bent state of the top plate, and facilitates the packing operation. Has an action.

[0010] The invention according to claim 4 of the present invention is characterized by being made of a double-sided corrugated cardboard and having the B flute positioned on the inner surface side, and has the effect of being hardly broken by punching. An embodiment of the cardboard cushioning material of the present invention will be described below with reference to FIGS.

(Embodiment) FIG. 1 is a development view of a board made of a cardboard cushioning material according to an embodiment of the present invention. 1 is a square bottom wall made of corrugated cardboard, 2 is a side wall connected to each of the four sides of the bottom wall 1, 3 is a top plate connected to the outer end of the side wall 2, and 4 is a peripheral edge of the bottom wall 1 on each side. The first projection 5 provided by a U-shaped notch facing the side wall 2 of the second side is a second projection provided by a U-shaped notch facing the bottom wall 1 on the side wall 2 of each side, and 6 is a top plate. 3 is a third projection provided by a U-shaped notch facing the side wall 2. In addition, a double-sided corrugated cardboard is used as the corrugated cardboard substrate, and the corrugated direction is obliquely intersecting the four sides of the bottom wall 1 with the B flute side as the inner surface. FIG. 1 shows the direction of the step J by cutting out the center of the bottom wall 1. Further, 7 is the first projection 4 on each side,
A through-hole provided at the tip of each of the second projection 5 and the third projection 6; small projections 8 formed at the outer ends of the side walls 2 on each side by U-shaped cuts facing the top plate 3; Reference numerals 9 denote engagement protrusions provided on both sides of the side wall 2 on each side, and adjacent engagement protrusions 9 are engaged with each other as described later.

The assembly and use of the cardboard cushioning material will be described with reference to FIG. FIG. 2 is a perspective view showing an assembled state in the embodiment of the present invention. As shown in FIG. 2, the side wall 2 of each side rises from the bottom wall 1 and engages with the engaging projections 9 located on both sides of the side wall 2 to assemble. ,
This substrate is placed on a packaging box having an open top surface, a product is placed thereon, and the substrate is pushed into the packaging box together with the product, thereby simultaneously assembling the cardboard cushioning material and inserting the product into the packaging box. You can also.

The state after the product is inserted into the packaging box will be described with reference to FIG. FIG. 3 is an exploded perspective view of a package using the cardboard cushioning material according to the embodiment of the present invention. 1
0 is a product to be packed, 11 is an accessory, and 12 is a packaging box. As shown in FIG. 3, the upper plate 3 is bent over the product 10 and the accessories 11 and the like are placed as necessary.
Close the lid to complete the packaging. Furthermore, these series of packing operations can be automated by a packing machine. still,
The engaging projection 9 is not always necessary, and the
Inside, the first protrusion 4, the second protrusion 5, and the third protrusion 6 on each side hold the shape of the cushioning material. If there are no stored items such as accessories 11, small projections 8
May be large projections like the other first projections 4, second projections 5, and third projections 6, and a buffer space may be formed therein. The bottom wall 1 is lifted from the bottom of the packaging box by the second protrusion 5 to form a buffer space, and the buffer space is also formed around the side wall 2 on each side by the first protrusion 4 and the third protrusion 6. ing. The engagement projection 9 also contributes to the retention of the buffer space around the side wall 2.

On the other hand, since the corrugated direction of the cardboard is obliquely intersected with the four sides of the bottom wall 1, the side walls 2 of each side are formed.
And the four sidewalls 2 maintain the same strength, and a stable cushioning property can be obtained in any direction. Further, by providing a through hole 7 at the tip of the first projection 4, the second projection 5, and the third projection 6 on each side, the tip of each projection when bending the side wall 2 and the top plate 3 is formed. The resistance is reduced and it is easy to bend.

Further, by adopting a configuration in which the upper surface plate 3 is cut out above the side wall 2 and a small protrusion 8 protruding outward by a U-shaped notch facing the upper surface plate 3 is adopted, the inside of the upper end portion of the small protrusion 8 is provided. Of the upper surface plate 3, and this resistance acts to kill the restoring force of the upper surface plate 3, so that the bent state of the upper surface plate 3 can be maintained well and the packing operation can be performed smoothly.

Further, by using a double-sided corrugated cardboard as a corrugated cardboard substrate and using the B flute on the inner surface side, it is hard to be broken by punching. As described above, according to the present embodiment, the structure of the substrate is simple and a flat sheet shape is convenient for transportation and storage, and the packaging box 12 having an open top surface with the product 10 placed on the substrate. When the product 10 is inserted, the side wall 2 of each side of the board is raised from the bottom wall 1 and after the product 10 is inserted, the top plate 3 is bent over the product 10 to complete the cushioning packaging. Of the product 10 and the insertion of the product 10 into the packaging box 12 at the same time, the packaging operation is easy and the workability is good, and the bottom wall 1 is lifted from the bottom of the packaging box 12 by the second projection 5 in the packaging box 12. The first projection 4 and the third projection 6 also form a buffer space around the side wall 2 on each side, and the first projection 4 and the second projection on each side. The shape of the cushioning material is retained by the projection 5 and the third projection 6 By has a structure, it is possible to obtain superior cardboard cushioning material buffered. This packing operation can be easily automated by a packing machine.

Further, by making the step direction of the corrugated cardboard obliquely intersect the four sides of the bottom wall 1, the step directions of the four side walls 2 are inclined in the same manner, and the side walls 2 of each side maintain the same strength. And stable buffering properties can be obtained in any direction. Further, by providing a through hole 7 at the tip of the first projection 4, the second projection 5, and the third projection 6, the resistance of the tip of each projection when bending the side wall 2 and the top plate 3 is reduced. In addition, the assembling and packaging work can be performed extremely easily.

Further, by adopting a configuration in which the upper plate 3 is cut out at the upper portion of the side wall 2 and a small protrusion 8 protruding outward by a U-shaped notch facing the upper plate 3 is adopted, the upper end of the small protrusion 8 is provided inside. And the resistance acts to reduce the restoring force of the upper plate 3, so that the upper plate 3 can be easily held in a bent state, and the packing operation can be performed smoothly.

Further, by using a double-sided corrugated cardboard as a corrugated cardboard substrate and setting the B flute on the inner surface side, it is hard to be broken by punching.

[0020]

As described above, the present invention is convenient for transportation and storage because the structure of the substrate is simple and flat.
The product is placed on the board and inserted into a packaging box with an open top so that the side walls of each side of the board rise from the bottom wall, and after inserting the product, the top plate is bent over the product. As a result, the assembling of the cardboard cushioning material and the insertion of the product into the packaging box can be performed at the same time, so that the packaging operation is easy and the workability is good, and the bottom wall is packaged by the second projection in the packaging box. A buffer space is formed by being lifted from the bottom of the box, and a buffer space is also formed around the side wall of each side by the first and third protrusions. With the structure in which the shape of the cushioning material is retained by the second protrusion and the third protrusion, an excellent effect of obtaining a cardboard cushioning material having excellent cushioning properties can be obtained.

The packing operation can be easily automated by a packing machine. Also, by obliquely intersecting the step direction of the corrugated cardboard with the four sides of the bottom wall, the step direction of the four side walls is inclined in the same manner, and the side walls of each side maintain the same strength. An excellent effect that a stable buffering property can be obtained is obtained.

Further, by providing a through hole at the tip of the first projection, the second projection, and the third projection, the resistance of the tip of each projection when bending the side wall and the top plate is reduced, and assembly is performed. An excellent effect that the packaging operation can be performed very easily is obtained. In addition, by adopting a configuration in which the upper plate is cut off at the upper part of the side wall and a small protrusion protruding outward by a U-shaped notch facing the upper plate is adopted, the snagging resistance inside the upper end portion of the small protrusion is increased, and Since the resistance acts to kill the restoring force of the upper plate, an excellent effect is obtained that the bent state of the upper plate can be maintained well and the packing operation can be performed smoothly.

Further, by using a double-sided corrugated cardboard as the corrugated cardboard substrate and using the B flute on the inner surface side, an excellent effect of being hardly broken by punching can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded view of a substrate of a cardboard cushioning material according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an assembled state of the cardboard cushioning material according to the embodiment of the present invention.

FIG. 3 is an exploded perspective view of a package using a cardboard cushioning material according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 bottom wall 2 side wall 3 top plate 4 first protrusion 5 second protrusion 6 third protrusion 7 through hole 8 small protrusion J stage

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masashi Kuwahara 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Ken Yoshida 4-186, Okai, Fukushima-ku, Osaka City, Osaka Rengo Shares F-term in the Central Research Laboratory (reference) 3E060 AA03 BA02 BC02 CC18 CC19 CC43 EA17 3E066 AA03 BA06 CA04 GA01 HA01 JA03 KA04 MA01 MA09 NA01

Claims (4)

[Claims] 1. A side wall is continuously provided on each of four sides of a rectangular bottom wall made of cardboard, and an upper surface plate is continuously provided on an upper end of the side wall.
The bottom wall is formed by cutting out the side wall and projecting outward.
A second projection formed by cutting the bottom wall and projecting outward on the side wall, and a third projection formed by cutting the side wall and projecting outward on the top plate, A corrugated cardboard cushioning material characterized in that the corrugated cardboard direction obliquely intersects the four sides of the bottom wall. 2. A quadrangular bottom wall made of corrugated cardboard is provided with a side wall on each side thereof, and an upper surface plate is provided on an upper end of the side wall.
The bottom wall is formed by cutting out the side wall and projecting outward.
A second projection formed by cutting the bottom wall and projecting outward on the side wall, and a third projection formed by cutting the side wall and projecting outward on the top plate, A cushioning material made of corrugated cardboard, wherein a through hole is provided at a tip portion of each of the first, second, and third projections. 3. A side wall is continuously provided on each of four sides of a square bottom wall made of cardboard, and an upper surface plate is continuously provided on an upper end of the side wall.
The bottom wall is formed by cutting out the side wall and projecting outward.
A second projection formed by cutting the bottom wall and projecting outward on the side wall, and a third projection formed by cutting the side wall and projecting outward on the top plate, A cushioning material made of corrugated cardboard having a small projection formed by cutting out the upper surface plate and projecting outward at an upper portion of the side wall. 4. A cushioning material made of corrugated cardboard according to claim 1, wherein the cushioning material is made of a double-faced corrugated cardboard, and the B flute is located on the inner surface side.