JP2002012270A - Cushioning material for packaging and packaging body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To firmly hold an article to be packaged in a box, and at the same time, provide an excellent cushioning effect regarding a cushioning material for packaging which is filled in the box together with the article to be packaged, and prevents the article to be packaged from shaking in the box, and at the same time, absorbs impacts due to dropping or the like and protects the article to be packaged. SOLUTION: A corrugated fiberboard is rounded and formed into a cylindrical shape, and both side surface plates 2 and 3 are folded inside into a V-shape. Thus, this cushioning material for packaging which can elastically stretch in the vertical direction by the elasticity of folding lines 5a to 5f is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case in which, for example, a package such as a cardboard box is loaded with the package, the package is loaded into the box together with the package so that the package does not rattle in the box. The present invention also relates to a cushioning material for packaging that protects an object to be packaged by absorbing an impact due to dropping and the like, and a package using the same.

[0002]

2. Description of the Related Art Conventionally, when an article to be packaged is packed in a box and packed, the box is filled together with the article to be packaged, so that the article to be packaged does not rattle in the box and also absorbs the impact of dropping or the like. As a cushioning material for protecting an article to be packaged, a material obtained by folding corrugated paper into a rectangular tube shape is known (Japanese Patent Laid-Open No. 7-125).
775).

[0003]

However, in the case of the simple rectangular cylinder made of corrugated cardboard, if one side of the rectangular cylinder is bent or buckled due to an impact, the rectangular cylinder is deformed, and the packaged object and the inner surface of the box are deformed. A gap is generated between the boxes, and the packaged object rattles in the box. If the package is rattled in the box, the package may be damaged due to shaking, impact, or the like during subsequent transportation. There is also a problem that a large cushioning effect cannot be expected with a simple corrugated square tube.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a cushioning material capable of firmly holding an article to be packaged in a box and obtaining an excellent cushioning effect. I do.

[0005]

In order to achieve the above object, a first aspect of the present invention is to form a cylindrical shape having a top plate, left and right side plates, and a bottom plate, and the height of both side plates in the height direction. At least a part thereof is folded inwardly into a V-shape via a fold provided at a middle portion in the height direction of each side plate, and is elastically vertically expandable and contractable by elasticity of the fold. A cushioning material for packaging is provided.

The first aspect of the present invention is that the end plate has an end plate bent downward from both ends of the upper plate, and the lower edge center portion of the end plate is connected to the lower plate. Is narrower than the upper edge width, and the insertion piece provided in the lower edge center part of the end face plate is inserted into the insertion slit provided in the bottom face plate, so that the lower edge center part of the end face plate is connected to the lower face plate Connected, formed of corrugated paper,
In a preferred embodiment, the V-shaped folding of the both side plates is performed through a fold in a direction crossing the corrugations of the corrugated core of corrugated paper.

[0007] A second aspect of the present invention is that, in a package in which a package is stored in a box, any one of the above-mentioned cushioning materials for packing is provided below or above the package, or both.
It is intended to provide a package characterized in that an upper surface plate or a lower surface plate is interposed so as to face an article to be packaged.

[0008] A second aspect of the present invention includes, as a preferred embodiment thereof, that any one of the above-mentioned cushioning materials for packaging is interposed also on the side of the article to be packaged.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first example of a packaging cushioning material A according to the present invention will be described with reference to FIGS.

As shown in FIGS. 1 to 3, the cushioning material A for packaging according to the first example comprises a top plate 1, left and right side plates 2 and 3, and a bottom plate 4 (wide width). A bottom plate 4a and a narrow bottom plate 4b) are provided. Specifically, the side plates 2 and 3 are connected to the left and right sides of the upper surface plate 1 through folds 5a and 5b, and the end portions of the side plates 2 and 3 are wide bottom plates through the folds 5c and 5d, respectively. 4a and a narrow bottom plate 4b are continuous.

The top plate 1, the side plates 2, 3 and the bottom plate 4
a and 4b are obtained by bending the side plates 2 and 3 downward through the folds 5a and 5b in FIG.
By folding the bottom plates 4a and 4b in the direction in which they overlap with each other, a square tube is formed as a whole. One of the bottom plates 4a and 4b has a large width and the other has a small width. The narrow bottom plates 4b are overlapped with each other such that the narrow bottom plates 4b are outside the wide bottom plates 4a. The insertion pieces 6 and 7 provided on the face plate 4b are inserted into insertion slits 8 and 9 provided on the wide bottom plate 4a to be connected to form a series of bottom plates 4.

At the center in the height direction of both side plates 2 and 3,
Folds 5e and 5f are provided to traverse the side plates 2 and 3, respectively.
It is folded in a V-shape inside through f. Each of the side plates 2 and 3 folded into the V shape has folds 5a to 5d.
And the bending elasticity of the folds 5e and 5f make it elastically expandable and contractible up and down. That is, the packaging cushioning material A according to the first example is elastically expandable and contractible up and down as a whole.

More specifically, as shown in FIG. 4A, when an external force is applied to the center of the upper surface plate 1 (when an even external force is applied to the entire upper surface plate 1), the left and right sides are moved. The side plates 2 and 3 are almost uniformly elastically contracted to absorb the external force. Further, as shown in FIGS. 4B and 4C, when an external force is applied to one of the left and right sides of the upper surface plate 1, the side plate 2 mainly on the side to which the external force is applied is applied.
Or, 3 contracts elastically to absorb the external force. In particular, since the side cushions A and B return elastically after the external force is released, there is a gap between the side walls 2 and 3 of the packaging cushioning material A, so that the packaging body rattles in the packaging body. Can be prevented.

As shown in FIGS. 1 to 3, openings 10 and 11 are provided at the center of the top plate 1 and the bottom plate 4 for handling the cushioning material A for main packaging. This is a clue to time and is intended to improve handling.

Next, a second example of the cushioning material A for packaging according to the present invention will be described with reference to FIGS. 5 to 8, the same reference numerals as those in FIGS. 1 to 4 indicate the same members.

The cushioning material A for packaging according to the second example is different from the cushioning material A for packaging according to the first example in that both ends are open. It has end plates 12 and 13 which are bent downward and extended from both ends via folds 5g and 5h.

More specifically, the side plates 2 and 3 are connected to the left and right sides of the top plate 1 via folds 5a and 5b, respectively.
3, a wide bottom plate 4a and a narrow bottom plate 4b are connected to each other through folds 5c and 5d, respectively.
The point that the top plate 1, the side plates 2, 3 and the bottom plate 4 form a rectangular tube as a whole is the same as in the first example. Also, folds 5e and 5f crossing the side plates 2 and 3, respectively, are provided at the center in the height direction of the side plates 2 and 3, and the side plates 2 and 3 are interposed through the folds 5e and 5f. It is also similar to the first example in that it is folded inward into a V-shape and can be elastically expanded and contracted up and down by the bending elasticity of the folds 5a to 5d and the folds 5e and 5f.

The difference from the cushioning material A for packaging according to the first example is that the end plates 12, 13 extend from both ends of the upper plate 1 via folds 5g, 5h, and have a wide bottom. Insertion slits 16, into which insertion pieces 14, 15 protruding from the center of the lower edges of the end plates 12, 13 are inserted into the face plate 4a,
17 is provided.

The end plates 12 and 13 have a lower edge width narrower than an upper edge width, are bent downward through folds 5g and 5h, and are provided with insertion pieces 1 provided at the center portions of the respective distal ends.
4 and 15 are inserted into the insertion slits 16 and 17, respectively, to be connected to the bottom plate 4.

In the case of the cushioning material A for packaging according to the second example, the end plates 12 and 13 do not elastically expand and contract like the two side plates 2 and 3, so that it is particularly shown in FIG. When an external force is applied to the center of the top plate 1 so that
When an even external force is applied to the whole), this end plate 1
2, 13 support the external force and prevent the entire packaging cushioning material A from being compressed. Therefore, even if the cushioning material A for main packaging is laid under a heavy package, the package does not collapse from the beginning due to the weight of the package. In addition, even when the cushioning material A for packaging is addressed to the upper part or the side part of the heavy packaged object, even if it is pushed by the packaged object due to shaking during transportation or the like, it is difficult to be compressed, and the The looseness of the packaged object can be prevented.

On the other hand, as shown in FIGS. 8B and 8C, when an external force is applied to one of the left and right sides of the upper surface plate 1, the lower edges of the end plates 12 and 13 on the side to which the external force is applied. The corner portion (the corner portion on the side receiving the external force) is partially collapsed, the end plates 12 and 13 are inclined, and the side plate 2 or 3 on the side to which the external force is applied is elastically contracted to absorb the external force. become. After the external force is released, the side plates 2 or 3 elastically return, and the end plates 12 and 13 stand upright again. Even if the lower edge corners are partially crushed even if the lower edge corners are partially deformed, the end plates 12 and 13 exert the supporting force against the heavy packaged object again after returning to the upright position, and the looseness of the packaged object is achieved. Sticking can be prevented. In particular, the external force applied during transportation is rarely applied to the center as shown in FIG. 8 (a), and is usually left and right as shown in FIGS. 8 (b) and (c). Can be achieved.

The end plates 12 and 13 are preferably tilted with the partial collapse of the lower edge corners, and the lower edge width is preferably smaller than the upper edge width. Since the lower edge width of the end face plates 12 and 13 is smaller than the upper edge width, the end face plates 12 and 13 are easily inclined when the above-mentioned laterally biased external force is applied, and the cushioning property can be improved.

The lower edges of the end plates 12, 13 may be connected to the bottom plate 4 as a whole.
In order to easily obtain the inclination of 3, it is preferable to connect the center of the lower edge of the end plates 12 and 13 to the bottom plate 4. This connection can be made by an adhesive or glue. However, the connection between the lower edge center portions of the end plates 12 and 13 and the bottom plate 4 has some play to obtain the inclination of the end plates 12 and 13. In order to facilitate the insertion, as shown,
5 is preferably inserted into insertion slits 16 and 17.

The cushioning material A for packaging in each of the first and second examples can be formed of, for example, corrugated paper, cardboard, plastic corrugated cardboard (commonly referred to as "plastic corrugated paper"). It is preferable to form the side plates 2 and 3 folded in a letter shape from corrugated cardboard because elastic expansion and contraction can be easily obtained and economical. When the cushioning material A for main packaging is formed from the corrugated paper, the V-shaped folding of the side plates 2 and 3 is performed through the folds 5a to 5f in the direction crossing the corrugation of the corrugated core of the corrugated paper. Is preferred.

In both of the first and second examples, the cushioning material A for packaging has both side plates 2 and 3 entirely folded in a V-shape inward, as shown in FIG. Two, three
, Only the middle part in the height direction can be folded inward in a V-shape. Also, two V-shaped folds may be connected to be folded into a W-shape.

Next, a package using the cushioning material A for main packaging described above will be described with reference to FIGS.

The cushioning material A for packaging of the present invention is
Is used in a case where it is stored in a box 19 (generally a cardboard box) for packaging, and is loaded by filling a gap between the article 18 to be packaged and the inner surface of the box 19.

In the first example shown in FIG. 10, the cushioning material A for main packaging is addressed both below and above the packaged object 18 stored in the box 19, and the packaged material 18 It is held in the box 18 while being sandwiched by the cushioning material A for main packaging. In this way, the packaged object 18 can be protected from being shaken in the box 19, especially against vertical sway and impact.

In the second example shown in FIG. 11, a plurality of main packaging cushions A are provided above and below the article 18 to be packaged.
Is addressed. In this way, even if the article to be packaged 18 is large, packaging can be performed without preparing a large packaging cushioning material A corresponding to the large article.

The third example shown in FIG. 12 is a modified example of the second example shown in FIG. 11, in which a plate 20 (for example, corrugated paper) is placed between the article 18 to be packaged and the cushioning material A for main packaging. The cushioning material A for main packaging is arranged only at positions (for example, four corners of the plate material 20) that can be interposed and stably support the plate material 20. In this manner, the number of the main cushioning material A used for packaging the large packaged object 18 can be reduced. In this case, it is preferable that the cushioning material A for main packaging is adhered to the plate material 20 so as not to shift.

In the fourth example shown in FIG. 13, the cushioning material A for packaging is addressed not only to the top and bottom of the article 18 but also to the side. In this way, the packaged object 18 can be protected against vertical, front-back, left-right swinging and impact.

The cushioning material A for packaging is interposed on the article 18 to be packaged with its upper surface plate 1 or lower surface plate 4 facing. Further, although the cushioning material A for packaging in the first to fourth examples is interposed both below and above the article 18 to be packaged, it can be simply interposed either below or above. Good.

[0033]

The present invention is as described above, and since the side plates 2 and 3 elastically expand and contract to provide a buffering effect, when the side plates 2 and 3 are shocked, they are temporarily Is deformed to absorb the impact, but immediately returns and holds the packaged object 18 again, so that the packaged object 18 does not rattle. Therefore, an excellent effect of protecting the packaged object 18 can be obtained. In particular, the connections necessary for assembling the cushioning material A for packaging are made by inserting pieces 6, 7, 14, 15
By inserting them into the insertion slits 8, 9, 16 and 17, it is possible to store them in a developed state without taking up space, and to facilitate recycling after use.

[Brief description of the drawings]

FIG. 1 is a top perspective view showing a first example of a packaging cushioning material of the present invention.

FIG. 2 is a perspective view showing a first example of the cushioning material for packaging according to the present invention, as viewed from a bottom surface direction.

FIG. 3 is a developed view showing a first example of the packaging cushioning material of the present invention.

FIG. 4 is an explanatory view of the operation of the first example of the packaging cushioning material of the present invention.

FIG. 5 is a perspective view from a top direction showing a second example of the cushioning material for packaging of the present invention.

FIG. 6 is a perspective view from the bottom direction showing a second example of the packaging cushioning material of the present invention.

FIG. 7 is a developed view showing a second example of the cushioning material for packaging according to the present invention.

FIG. 8 is an explanatory view of the operation of the second example of the packaging cushioning material of the present invention.

FIG. 9 is a perspective view showing another example when the side plate is folded inward.

FIG. 10 is a schematic sectional view showing a first example of the package of the present invention.

FIG. 11 is a schematic sectional view showing a second example of the package of the present invention.

FIG. 12 is a schematic sectional view showing a third example of the package of the present invention.

FIG. 13 is a schematic sectional view showing a fourth example of the package of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top plate 2, 3 Side plate 4 Bottom plate 4a Wide bottom plate 4b Narrow bottom plate 5a-5h Fold 6,7 Insertion piece 8,9 Insertion slit 10,11 Opening 12,13 End plate 14,15 Insertion piece 16, 17 Insertion slit 18 Packaged item 19 Box 20 Board material

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[Procedure amendment]

[Submission date] July 6, 2000 (200.7.6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

The top plate 1, the side plates 2, 3 and the bottom plate 4
a, 4b, in FIG. 3, folding the side plates 2 and 3 downwards through the creases 5a, 5b, further folds 5c, 5d
By folding the bottom plates 4a and 4b in the direction in which they overlap with each other, a square tube is formed as a whole. One of the bottom plates 4a and 4b has a large width and the other has a small width. The narrow bottom plates 4b are overlapped with each other such that the narrow bottom plates 4b are outside the wide bottom plates 4a. The insertion pieces 6 and 7 provided on the face plate 4b are inserted into insertion slits 8 and 9 provided on the wide bottom plate 4a to be connected to form a series of bottom plates 4.

Claims (7)

[Claims] 1. A cylindrical shape having an upper surface plate, left and right side plates, and a bottom plate, and at least a part of the height direction of both side plates is provided at a middle portion in the height direction of each side plate. A cushioning material for packaging, which is folded in a V-shape inside through a folded fold and is elastically vertically expandable and contractable by elasticity of the fold. 2. The packaging cushion according to claim 1, further comprising an end plate bent downward from both ends of the upper plate, and a lower edge center portion of the end plate connected to the lower plate. Wood. 3. The cushioning material for packaging according to claim 2, wherein a lower edge width of the end face plate is smaller than an upper edge width. 4. An insertion piece provided at the center of the lower edge of the end face plate is inserted into an insertion slit provided at the bottom face plate, so that the lower edge center of the end face plate is connected to the lower face plate. The packaging cushioning material according to claim 2 or 3, wherein 5. The corrugated paperboard, wherein the V-shaped folding of the both side plates is performed through a fold in a direction crossing the corrugation of the corrugated core of the corrugated paperboard. 5. The packaging cushioning material according to any one of items 1 to 4. 6. A package in which an article to be packaged is stored in a box, wherein the cushioning material for packaging according to any one of claims 1 to 5,
A package body characterized in that an upper surface plate or a lower surface plate is interposed on one or both of a lower side and an upper side of an object to be packaged so as to face the object to be packaged. 7. The package according to claim 6, wherein the cushioning material for packaging according to any one of claims 1 to 5 is interposed also on the side of the article to be packaged.