JPH0858844A - Cushioning material for packaging - Google Patents

Abstract

PURPOSE: To provide an excellent cushioning property, and improve the building up property by dispensing with an adhesive, etc., by a method wherein a blank sheet made of one sheet of corrugated fiberboard is built up by engaging engaging-pieces with notches, and a cushioning material wherein both side plate parts are double (quadruple), a bottom plate part is sextuple, and a back plate part is double is obtained. CONSTITUTION: For a blank sheet made of one sheet of corrugated fiberboard, external side plates 6 and internal side plates 8 are respectively connected to both shorter edges of a rectangular back plate 4, and to one longer edge of the external back plate 4, a bottom plate 2, front plate 17, decorative bottom plate 19 and decorative back plate 22 are connected in order. Also, a reinforcing bottom plate 14 and reinforcing bottom plate 15 are respectively connected to the external side plates 6 and internal side plates 8. Then, respective internal side plates 8 are put on the top of the external side plates 6, and the back plate 4, overlapped respective internal side plates 8 and external side plates 6 are erected at a right angle. Then, the overlapped respective internal side plates 8 and external side plates 6 are folded to the inside at 90 deg., and after respective reinforcing bottom plates 14, 15 under an overlapped condition are put on the top of the bottom plate 2, the front plate 17 is erected, and the decorative bottom plate 19 is put on the top of the reinforcing bottom plate 15 to build up a cushioning material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging cushioning material for fixing articles to be packaged inside a packaging box so that the articles to be packaged do not interfere with the inner wall of the packaging box. More specifically, the present invention relates to a cushioning material for packaging that fits into a corner of an article to be packaged and holds the article.

[0002]

2. Description of the Related Art When packaging articles to be packaged, a cushioning material that fits into the corners of the articles to be packaged and holds the articles is used in order to prevent the articles to be packaged from being damaged by external shock during transportation. Has been. Conventionally, a styrofoam cushioning material has been used as such a cushioning material. The styrofoam cushioning material has advantages that it can be molded into a complicated three-dimensional shape, has excellent cushioning properties, is lightweight, and has a low manufacturing cost. However, when styrofoam was incinerated, it generated high temperatures and damaged the incinerator, so it had to be landed in a landfill. However, in recent years, since it has become impossible to secure a landfill for garbage, there is a problem in that it is difficult to dispose of styrofoam, which has a large volume, after use.

Therefore, a cardboard cushioning material has come to be used. The corrugated board cushioning material is manufactured by cutting out a required shape from a block in which a plurality of corrugated board sheets are laminated and attached with an adhesive or the like. The corrugated cardboard cushioning material can be incinerated after use,
It can also be reused.

[0004]

In the above-mentioned corrugated cardboard cushioning material, as is clear from the manufacturing method, the end face of the corrugated cardboard paper is exposed at the cut surface. The end face is surprisingly hard and does not have the flexibility of styrofoam.
Therefore, when the end surface comes into contact with the surface of the packaged article, there is a problem that the soft coated surface of the packaged article is damaged. Furthermore, since the corrugated cardboard cushioning material is manufactured by cutting out a required shape from a block in which a plurality of corrugated cardboard sheets are laminated and adhered with an adhesive or the like, unnecessary portions of the block are wasted. There was a problem that

In view of the above points, an object of the present invention is to provide a corrugated cardboard cushioning material which does not damage the surface of the article to be packaged and which is convenient for paper.

[0006]

The cushioning material for packaging of the present invention is formed of one corrugated cardboard blank sheet, and a back plate 4 is connected to one of the long sides of a rectangular bottom plate 2 via a folding line 3. The outer plates 6 are connected to the two short sides of the back plate 4 via the folding lines 5, and the notches 9 are formed on the outer sides of the outer plates 6 via the folding lines 7, respectively. Both inner side plates 8 are continuously provided, and the bottom side plate 2 is connected to the both outer side plates 6 through folding lines 10.
Reinforcing bottom plates 14 that overlap with
A reinforcing bottom plate 15 that overlaps the reinforcing bottom plate 14 is connected to each other via a fold line 11, and both the reinforcing bottom plates 14 and the both reinforcing bottom plates 15 are partitioned by slits 12 and 13, respectively, and the length of the bottom plate 2 is increased. A front plate 17 is provided on the other side of the side through a broken line 16.
The decorative bottom plate 19 is connected to the front plate 17 via a folding line 18, and the decorative back plate 22 is connected to one of the long sides of the decorative bottom plate 19 via a folding line 21. Decorative bottom plate 19
On both short sides, engaging pieces 20 for engaging with the notches 9 formed in the inner plate 8 are attached respectively, and each inner plate 8 is bent inward at the fold line 7 to form the outer plate 6. The reinforcing bottom plate 15 is superposed on the reinforcing bottom plate 14.
The back plate 4 and the polymerized inner and outer plates 8 and 6 are polymerized on top of each other at right angles at the folding lines 3, 10 and 11, respectively, and the polymerized inner and outer plates 8 and 6 are separated. The bottom plate 2 is folded inward at the folding line 5 by 90 degrees and the reinforcing bottom plates 14 and 15 are superposed on each other.
The front plate 17 is erected on the fold line 16, the decorative bottom plate 19 is bent at the fold line 18 and polymerized on the reinforcing bottom plate 15, and the decorative back plate 2
2 was reversely folded at the folding line 21 and overlapped with the back plate 4, and the engaging pieces 20 provided on the decorative bottom plate 19 were respectively engaged with the notches 9 formed on the inner plate 8.

Further, the cushioning material for packaging of the present invention is formed from a single corrugated cardboard blank sheet, and a back plate 4 is continuously provided on one of the long sides of a rectangular bottom plate 2 via a folding line 3. On both short sides of the back plate 4, both outer plates 6 are continuously provided via folding lines 5, and on the outside of the both outer plates 6, both inner plates 8 are continuously provided via folding lines 7. Reinforcing bottom plates 14 that overlap the bottom plate 2 are connected to the outer plates 6 via folding lines 10, respectively.
Reinforcing bottom plates 15 which overlap with the reinforcing bottom plates 14 are connected to the both inner plates 8 via fold lines 11, respectively.
The reinforcing bottom plates 15 are divided by slits 12 and 13, respectively, and a front plate 17 is connected to the other long side of the bottom plate 2 via a folding line 16, and a folding line 18 is formed on the front plate 17. The makeup bottom plate 19 is continuously provided through the makeup bottom plate 19, and the makeup back plate 22 is continuously provided at one long side of the makeup bottom plate 19 through the folding line 21.
Engaging pieces 20 that engage with the notches 9 formed in the inner plate 8 are attached to both short sides of the decorative bottom plate 19, and the bottom plate 2, the front plate 17, the decorative bottom plate 19 and the decorative spine are provided. A notch 9 is formed in the inner plate 8 located in one of the two sets of the inner plate 8, the reinforcing bottom plate 14 and the reinforcing bottom plate 15 which are symmetrically arranged on both sides of the plate 22. , A fold line 31 on the reinforcing bottom plate 14 positioned in the set.
A reinforcing side plate 33 is provided through the reinforcing side plate 33, and a reinforcing side plate 34 having a notch 35 is formed through a fold line 32 on the reinforcing bottom plate 15 positioned in the set. Fold inward at the fold line 7 and polymerize on the outer side plate 6, the reinforcing bottom plate 15 is polymerized on the reinforcing bottom plate 14, and the back plate 4 and the polymerized inner side plates 8 and outer side plates 6 are combined. The polygonal lines 3, 10, 11 respectively
At a right angle, the inner plates 8 and the outer plates 6 that have been polymerized are folded inward at the folding line 5 by 90 degrees, and the reinforcing bottom plates 14 and 15 are superposed on the bottom plate 2 in a superposed state. The reinforcing side plates 33 and 34 are bent at the folding lines 31 and 32 to be superposed on the inside of the inner plate 8, the front plate 17 is raised at the folding line 16, and the decorative bottom plate 19 is bent at the folding line 18 to reinforce the reinforcing plate. The cutout formed by superposing on the bottom plate 15, the decorative back plate 22 is reversely folded at the folding line 21 and overlapped with the back plate 4, and the engaging piece 20 provided on the decorative bottom plate 19 is formed on the inner plate 8. 9 and a cushioning material for packaging engaged with the notches 35 formed in the reinforcing side plate 34, respectively.

Further, in the cushioning material of the present invention, the reinforcing bottom plates 14 and 15 and the decorative bottom plate 19 are formed with the through holes 36 for accommodating the leg portions of the article to be packaged.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The cushioning material for packaging of the present invention will be described in detail below with reference to the accompanying drawings.

(First Embodiment) FIG. 1 shows a first embodiment according to the present invention.
It is a perspective view showing a completed state of. Reference numeral 1 is a cushioning material, which can be obtained from a single corrugated cardboard blank sheet as shown in FIG. The structure of the blank sheet that appears substantially vertically symmetrical with respect to the center line T is as follows.

A back plate 4 is connected to one of the long sides of the rectangular bottom plate 2 via a folding line 3, and an outer plate 6 is connected to each of the short sides of the back plate 4 via a folding line 5. . These outer plates 6
Further, an inner plate 8 is continuously provided via a fold line 7. Further, the outer plate 6 and the inner plate 8 are reinforced bottom plates 14 and 1 which overlap with the bottom plate 2 through folding lines 10 and 11 and slits 12 and 13.
5 are connected and divided. Notches 9 are formed in the inner plates 8 and 8.

On the other hand, a front plate 17 is connected to the other long side of the bottom plate 2 via a folding line 16, and a decorative bottom plate 19 which is superposed on the reinforcing bottom plate via a folding line 18 is provided on the front plate 17. Make a line. Engagement pieces 20 that engage with the cutouts 9 formed in the inner side plate 8 are attached to the outer ends on the short side of the decorative bottom plate 19, respectively, and the decorative back plate 2 is provided on the long side via fold lines 21.
2 is extended. The decorative bottom plate 19 and the decorative back plate 2
The width of 2 is formed narrower than the width of the bottom plate 2 and the front plate 17 in order to avoid interference with the inner plate 8 during assembly.

Next, a procedure for assembling the cushioning material 1 will be described.
First, as shown in FIG. 3, each inner plate 8 is bent inward along a fold line 7 to be superposed on the outer plate 6. At the same time, the reinforcing bottom plate 15 is superposed on the reinforcing bottom plate 14.

Next, as shown in FIG. 4, the back plate 4 and the superposed inner and outer plates 8 and 6 are broken into lines 3, 10, respectively.
Stand up at a right angle at 11. The inner side plates 8 and the outer side plates 6 that have been polymerized are folded inward at the folding line 5 by 90 degrees, and the reinforcing bottom plates 14 and 15 are superposed on the bottom plate 2 in a superposed state.

Finally, as shown in FIG. 5, the front plate 17 is raised at the fold line 16, and the decorative bottom plate 19 is further bent at the fold line 18.
And is bent and polymerized on the reinforcing bottom plate 15. The decorative back plate 22 is reversely folded at the folding line 21 and overlapped with the back plate 4, and the engaging pieces 20 provided on the decorative bottom plate 19 are respectively engaged with the notches 9 formed in the inner plate 8 (see FIG. 1).

FIG. 6 is an explanatory view of a usage state of the cushioning material 1. First, the cushioning material 1 is fitted to the four corners of the article G to be packaged. This cushioning material has the thickest bottom plate portion with six layers. Therefore, the cushioning material 1 is fitted such that the bottom plate portion is arranged on the top plate and bottom plate side of the packaging box C.

In the cushioning material according to the present embodiment, all contact surfaces with the article to be packaged are sheet surfaces. In addition, 1
It can be obtained from a single corrugated blank sheet.
Further, both side plate portions are doubled, the bottom plate portion is sixfold, and the back plate portion is doubled. Further, by engaging the engaging piece 20 with the notch 9, the side plate portion, the bottom plate portion and the back plate portion are assembled. Further, since each piece is assembled from one blank sheet, each piece is always connected to one of the pieces via a fold line.

(Second Embodiment) Next, a second embodiment according to the present invention will be described. The present embodiment is a cushioning material in the case where the article to be packaged has a convex projecting portion on the back surface of the article and has four legs on the bottom surface. In the following description of the present embodiment, the same reference numerals will be used for the same members as in the first embodiment. Since the assembling method is almost the same as that of the first embodiment, only different points will be described.

FIG. 7 is a perspective view showing a completed state of the cushioning material 30 of the second embodiment. One side plate of the cushioning material 30 has a quadruple structure and has a thickness twice that of the other side plate.
Further, the bottom plate portion has two circular holes.

FIG. 8 is a developed view of the cushioning material 30. This embodiment can be obtained from one corrugated cardboard blank sheet as in the first embodiment. Reinforcing side plates 33 and 34 are continuously provided to the reinforcing bottom plates 14 and 15 located below the center line T in FIG. 8 via folding lines 31 and 32. Further, the reinforcing side plate 34 is provided with a notch 35. Since the notch 35 is provided, the notch 9 located above the center line T in FIG. 2 of the first embodiment is not provided. Further, the two reinforcing bottom plates 15 and the reinforcing bottom plate 14 located below the center line T.
The decorative bottom plate 19 is provided with two circular through holes 36 for accommodating the legs of the article to be packaged in the longitudinal direction of each piece.

The cushioning material 30 of this embodiment is assembled by the same procedure as in the first embodiment. When the reinforcing bottom plates 14 and 15 are superposed on the bottom plate 2, the reinforcing side plates 33 and 34 are bent along the folding lines 31 and 32 to be superposed on the inside of the inner plate 8. Moreover, the notch 35 engages with the engagement piece 20 located above the center line T.

FIG. 9 is an explanatory view of a usage state of the cushioning material 30. The article to be packaged G has a convex projecting portion 50 on the back surface, and also has four leg portions 51 on the bottom surface. One side surface portion of the cushioning material 30 is configured by four layers of the outer side plate 6, the inner side plate 8, and the reinforcing side plates 34 and 35, and the protruding portion 50 does not interfere with the inner wall of the packaging box C due to the thickness of the outer side surface portion. In addition, the leg portion 51 is housed in two circular holes provided in the bottom plate portion of the cushioning material 30.

Although the cushioning material according to each of the above embodiments is simply formed of a corrugated cardboard sheet, it is needless to say that a double-sided corrugated board may be used as a material or another corrugated board may be used.

[0024]

The cushioning material according to the present invention has an advantage that the surface of the article to be packaged is not damaged because all the contact surfaces with the article to be packaged are sheet surfaces. Further, since it can be obtained from a single corrugated cardboard blank sheet, it is convenient to take paper. Further, both side plates are double (4 layers), the bottom plate is 6 layers, and the back plate is 2 layers, which is excellent in cushioning property. Further, since it can be assembled by engaging the engaging piece with the notch, no adhesive or the like is required, and the both side plate portion, the bottom plate portion and the back plate portion are not easily disassembled after the assembly. . In addition, 1
Since each piece is assembled from a single blank sheet, each piece is always connected to one of the pieces via a fold line, and therefore, the cushioning material according to this embodiment is also excellent in strength. Furthermore, even if the article to be packaged has a protruding portion or a leg portion, it can be securely held in the packaging box.

[Brief description of drawings]

FIG. 1 is a perspective view showing a completed state of a packaging cushioning material according to a first embodiment of the present invention.

FIG. 2 is a development view of a blank sheet of the cushioning material for packaging shown in FIG.

3 is a perspective view showing an assembling process of the packaging cushioning material shown in FIG. 1, showing a state in which each inner plate 8 is folded inward along a folding line 7 and superposed on the outer plate 6. FIG.

4 is a perspective view showing an assembling process of the packaging cushioning material shown in FIG. 1, in which the back plate 4 and each of the superposed inner and outer plates 8 and 6 are raised at right angles at fold lines 3, 10, and 11, respectively. Shows the state.

5 is a perspective view showing an assembling process of the cushioning material for packaging shown in FIG. 1, in which a front plate 17 is raised at a folding line 16 and a decorative bottom plate 19 is folded at a folding line 18 to be superposed on the reinforcing bottom plate 15. FIG. Indicates the status.

FIG. 6 is a perspective view showing a use state of the cushioning material for packaging shown in FIG. 1.

FIG. 7 is a perspective view showing a completed state of the packaging cushioning material according to the second embodiment of the present invention.

8 is a development view of the blank sheet of the cushioning material for packaging shown in FIG. 7. FIG.

9 is an explanatory view showing a usage state of the cushioning material for packaging shown in FIG. 7. FIG.

[Explanation of symbols]

1 cushioning material 2 bottom plate 3, 5, 7, 10, 11, 16, 18, 18, 21, 31, 3
2 Folded line 4 Back plate 6 Outer plate 8 Inner plate 9, 35 Notches 12, 13 Slits 14, 15 Reinforcement bottom plate 17 Front plate 19 Decorative bottom plate 20 Engaging piece 22 Decorative back plate 33, 34 Reinforcement side plate 36 Through hole

Claims (3)

[Claims] 1. A fold line (3) formed on one of the long sides of a rectangular bottom plate (2) formed from a single corrugated cardboard blank sheet.
A back plate (4) is continuously provided through the back plate (4), and both outer plates (6) are continuously provided at both short sides of the back plate (4) through folding lines (5). On the outside of 6), two inner plates (8) each having a notch (9) formed therein are connected to each other via a fold line (7), and the both outer plates (6) are laid via a fold line (10). Reinforcement bottom plates (14) that overlap with the bottom plate (2) are respectively connected in series, and reinforcement bottom plates (15) that overlap with the reinforcement bottom plates (14) are provided on both inner plates (8) through fold lines (11). The reinforcing bottom plates (14) and the reinforcing bottom plates (15) are respectively connected to each other and are divided by slits (12, 13), and a fold line (16) is provided on the other side of the long side of the bottom plate (2). The front plate (17) is continuously connected through the front plate (17), and the decorative bottom plate (19) is continuously connected to the front plate (17) through the folding line (18). A decorative back plate (22) is continuously provided to the decorative bottom plate (19) via a fold line (21) and engages with the notches (9) formed in the inner plate (8) on both short sides of the decorative bottom plate (19). Each of the inner plates (8) is bent inward at the fold line (7) to be polymerized on the outer plate (6), and the reinforcing bottom plate (15) is Polymerizing on the reinforced bottom plate (14),
The back plate (4) and the superposed inner side plates (8) and outer side plates (6) are raised at right angles at the fold lines (3, 10, 11), and the superposed inner side plates (8) and Inside the outer plate (6) at the fold line (5) 9
The front plate (1) is folded over at 0 degree, and the reinforcing bottom plates (14, 15) are superposed on the bottom plate (2) in a state of being superposed.
7) is raised at the fold line (16), the decorative bottom plate (19) is bent at the fold line (18) and polymerized on the reinforced bottom plate (15), and the decorative back plate (22) is formed at the fold line (22). 21) The reverse cut is performed in 21), the back plate (4) is superposed on the back plate (4), and the engaging piece (20) provided on the decorative bottom plate (19) is formed on the inner plate (8).
A cushioning material for packaging that is engaged with each. 2. A folding line (3) formed on one of the long sides of a rectangular bottom plate (2) formed from a single corrugated cardboard blank sheet.
A back plate (4) is continuously provided through the back plate (4), and both outer plates (6) are continuously provided at both short sides of the back plate (4) through folding lines (5). Reinforcing bottom plate which is provided on both sides of the outer plate (6) with a fold line (7) and is continuous with both inner plates (8) and which overlaps with the bottom plate (2) through the fold line (10). (14) are respectively connected in series, and reinforcing bottom plates (15) that overlap with the reinforcing bottom plate (14) are connected to the both inner side plates (8) via folding lines (11), respectively. 14) and both the reinforcing bottom plates (15) are divided by slits (12, 13), respectively, and the front plate (17) is connected to the other side of the long side of the bottom plate (2) via a fold line (16). The decorative bottom plate (19) is installed on the front plate (17) through a fold line (18).
And the folding line (2) on one side of the long side of the decorative bottom plate (19).
1), a decorative back plate (22) is connected in series, and engaging pieces () that engage with the notches (9) formed in the inner plate (8) on both short sides of the decorative bottom plate (19). 20) respectively attached to the bottom plate (2), the front plate (17) and the decorative bottom plate (1).
9) and two sets of the inner plates (8) symmetrically arranged on both sides of the decorative back plate (22) and the reinforcing bottom plate (1).
4) and the reinforcing bottom plate (15), a notch (9) is formed in the inner plate (8) located in one set on either side, and the notch (9) is formed in the reinforcing bottom plate (14) located in the set. Is provided with a reinforcing side plate (33) through a fold line (31), and the reinforcing bottom plate (15) located in the set is provided with a notch (35) through a fold line (32). 34) is provided, each inner plate (8) is bent inward at the fold line (7) and polymerized on the outer plate (6), and the reinforcing bottom plate (15) is the reinforcing bottom plate (15). 14) polymerize on,
The back plate (4) and the superposed inner side plates (8) and outer side plates (6) are raised at right angles at the fold lines (3, 10, 11), and the superposed inner side plates (8) and Inside the outer plate (6) at the fold line (5) 9
Fold it at 0 degrees, stack the reinforcing bottom plates (14, 15) on the bottom plate (2) in a superposed state, bend the reinforcing side plates (33, 34) at the folding lines (31, 32), and 8, the front plate (17) is raised at the fold line (16), and the decorative bottom plate (1)
9) is folded along the fold line (18) and polymerized on the reinforcing bottom plate (15), the decorative back plate (22) is reverse-folded along the fold line (21) and overlapped with the back plate (4), The engaging piece (2) provided on the decorative bottom plate (19)
0) The cushioning material for packaging in which the notch (9) formed in the inner side plate (8) and the notch (35) formed in the reinforcing side plate (34) are engaged with each other. 3. The reinforcing bottom plates (14, 15) and the decorative bottom plate (19) are provided with through holes (3) for storing legs of articles to be packaged.
The cushioning material for packaging according to claim 1 or 2, wherein 6) is formed.