JP3174287B2 - Corrugated corner cushioning material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material for fixing a corner made of corrugated cardboard, which is lightweight, foldable and can be transported and stored as a cushioning material used for packaging kitchenware, electrical equipment and other various equipment. It is convenient, easy to assemble, can be fixed to corners or edges, and is bulky once manufactured like conventional styrofoam cushioning material, and has the disadvantage of causing environmental pollution problems when disposed of. No corrugated cardboard corner cushioning material.

[0002]

2. Description of the Related Art Conventionally, as a corner fixing cushioning material,
A three-dimensional corner material integrally formed of styrene foam is used. This kind of corner material made of synthetic resin is lightweight and elastic, it is convenient as a cushioning material used for packaging kitchenware, electrical equipment and other various equipment, and can take any form at the time of molding Because it is widely used. However, disposal after use has caused a problem of environmental pollution due to resin disposal.

[0003]

The conventional styrofoam corner material has a feature that the shape and size can be freely selected depending on the mold at the time of molding. However, as a three-dimensional corner material, not only space is required for transportation and storage, but also it is lightweight, but its ends are chipped and a small amount of dust is generated. There was a risk that a problem might occur, and there was a problem that it was troublesome.

[0004] An object of the present invention is to solve the above-mentioned difficulties, to easily assemble three-dimensionally using corrugated cardboard, to be able to be transported and stored in a flat plate shape before use, and to be simple on site. It is an object of the present invention to provide a corrugated cardboard corner fixing cushioning material that can be assembled without causing a problem of environmental pollution.

[0005]

In order to achieve the above-mentioned object, according to the present invention, there is provided one vertical folding line, eight horizontal folding lines orthogonal to the vertical folding line, and the vertical folding line. A corrugated cardboard having two substantially hexagonal cutouts formed at vertices including a right angle at a pair of intersections intersecting the horizontal folding line on the line;
Folding inward from both edges with the book as a boundary, forming two rectangular tubular portions such that the both edge portions are located between the two horizontal folding lines at the center, and forming the two rectangular tubular portions. The cylindrical part abuts or engages the edge of the cutout
And folded inward with a vertical fold line to form two-step corners.

(Operation) In the present invention, one vertical folding line and eight horizontal folding lines orthogonal to the vertical folding line are provided. At a pair of intersections where the two transverse folding lines in the center intersect, a corrugated board having two substantially hexagonal cutouts at the vertices including a right angle is formed, and this corrugated board is folded from the folding line and abutted at the cutouts. Or engaged
By fixing it in place, a two-stage rectangular cylindrical portion is formed, which has a reinforcing property and a large buffering effect.

After the cylindrical portion is formed, a vertical folding line is formed.
The edge of the package as it is, without folding inward from
It can be used as a fixed cushioning material for the side by contacting the
it can.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, it is easy to assemble three-dimensionally using a corrugated cardboard, can be transported and stored in a flat plate shape before use, and can be easily assembled on site. It is a corner fixed cushioning material, forming a triangular or square tubular part by folding inward from both edges by the number and cutouts of vertical folding lines and horizontal folding lines provided on the cardboard board , Can be used as a corner.

When there is one vertical folding line, one corner portion is formed, and two or more corner portions can be formed. Further, the tubular portion can be folded into a triangle or a square depending on the number of the plurality of transverse folding lines. When the cut-out portion is formed into a cylindrical portion, the cut-out portion has edges facing each other. If this edge is folded inward from a vertical folding line and abutted or engaged, a corner portion is completed.

It is also possible to use the cutout as a cushioning material by abutting the edge of the packaged product without abutting or engaging the cutout and extending.

In the present invention, the case where the two-step corner is formed is shown.
Form one tubular part with one cutout part, fold so that the cutout parts abut, and use it as one corner part
By stacking providing a plurality of Rukoto it can be or tubular portion can also be a form suitable for the corner of the package.

[0012]

FIG. 1 is an exploded view. 1 is a corrugated board, 2 is a vertical folding line, and one or more are provided. The illustrated example is an example for one corner provided only in the center, and this vertical folding line 2 is provided along the corrugation of the corrugated board 1 (vertical line in the drawing). Reference numeral 3 denotes a horizontal folding line, which is orthogonal to the vertical folding line 2. In the illustrated example, eight horizontal fold lines 3 (a, b, c, d,
e, f, g, h). The horizontal fold line 3 is folded inward from both edges with two (d, e) constituting the center part as a boundary. If the horizontal fold line is odd, it is triangular, and if it is even, it is square cylindrical. The part can be formed. Reference numerals 4, 4, 5, and 5 denote a pair of intersections, each of which is an intersection of the vertical fold line 2 and the horizontal fold line 3. The intersection is a right angle, and a substantially hexagonal cutout is formed by a vertex including the right angle. Parts 6 and 7 were provided. In the illustrated example, the shape is substantially hexagonal. However, when the number of transverse fold lines is an odd number, the shape becomes a substantially square cutout. Reference numeral 8 denotes a central portion.

FIG. 2 and FIG. 3 show folding, and two (d, e) constituting a central portion 8 among a plurality of transverse folding lines 3 are shown.
The two edges (a, h) of the both edges are folded inward from the boundary, and the edge portions 9 and 10 are two lateral folding lines of the central portion 8
(d, e). Since the edge portions 9 and 10 are folded along the central portion 8, this portion becomes a double frame, and the rectangular cylindrical portion is reinforced.

The rectangular cylindrical portions 11 and 12 are formed by folding as described above. Substantially hexagonal cutouts 6, 7
Corners are formed by abutting or engaging the edges 6a, 7a of the inward along the longitudinal folding line 2 so as to form a corner. FIG. 4 shows a state where the corner portion 13 is completed. This corner 13
Are fixed by a seal or a metal piece to the butt edge of the.

FIG. 5 shows an example in which the corner portion 14 is used at two corners. FIG. 6 shows an example in which a triangular cylindrical portion 16 is provided above and a rectangular cylindrical portion 17 is provided below as the corner portion 15. Reference numeral 18 denotes an example in which a folded piece is provided, and the folded piece reinforces the edge part by double.

Although not shown, before forming the corner portion, the cutout portion can be kept open and used as a cushioning material at the edge of the packaged product.

FIG. 7 shows another embodiment of a corrugated board, in which cutouts 20 and 22 are provided with engaging portions 21 and 23, respectively.
In this case, when the cutouts are abutted to form a corner,
The engaging portions can be engaged with each other and fixed. Reference numerals 24 and 25 are folded pieces for reinforcing the edges.

[0018]

According to the present invention, it is easy to assemble three-dimensionally by using cardboard, can be transported and stored in a flat plate shape before use, can be easily assembled on site, and has a problem of environmental pollution. A corrugated cardboard corner cushioning material free from cracks was provided.

As a corrugated board, it can be transported and stored in a flat shape, and has an effect that the edges of the cutouts can be easily formed by abutting or engaging at the time of assembly on site.

A quadrangular cylindrical portion formed in two upper and lower stages is provided, and can be stably used as a corner portion if it is folded and fixed from a vertical folding line.

[Brief description of the drawings]

FIG. 1 is a development view of a corrugated board of the present invention.

FIG. 2 is a perspective view showing an assembling stage.

FIG. 3 is a perspective view showing a stage in which a cylindrical portion is formed by the same assembly.

FIG. 4 is a perspective view showing completion of a corner portion.

FIG. 5 is a perspective view showing a corner portion for two corners as another embodiment.

FIG. 6 is a perspective view showing an example in which the upper stage is a triangular cylindrical portion as still another embodiment.

FIG. 7 is a development view of a corrugated board as another embodiment.

[Explanation of symbols]

 1: Corrugated board 2: Vertical fold line 3: Horizontal fold line 4, 4, 5, 5: A pair of intersection points 6, 7: Cut-out part 8: Central part 9, 10: Edge part 11, 12: Cylindrical shape Part 13, 14, 15: Corner part 16, 17: Cylindrical part 19: Corrugated board 20, 22: Cut-out part

Claims (1)

(57) [Claims] 1. A vertical fold line, eight horizontal fold lines orthogonal to the vertical fold line, and a right angle at a pair of intersections intersecting the horizontal fold line on the vertical fold line. A corrugated board having two substantially hexagonal cutouts formed at the vertices is provided, and each of the transverse folding lines is folded inward from both edges at two central borders. Two square tubular portions are formed so as to be located between the two horizontal folding lines in the center portion, and the two square tubular portions abut or engage with the edges of the cutout portion. A corner fixing cushion made of corrugated cardboard, which is folded inward by a vertical folding line so as to form a two-step corner portion.