JPH0840464A - Buffer for packing - Google Patents

Abstract

PURPOSE:To provide a buffer for packing which can resist heavy loads and of which wall is not broken even when it is used for packing of a heavy article and hence, prevent the article from being damaged, by positioning a reinforcing plate erected against the bottom wall, having a size just fitting in the inside of a rear side buffer wall with a hollow structure in the width so as to get in contact with the inside face of the upper face plate forming the rear side buffer wall. CONSTITUTION:A reinforcing plate of the rear side buffer wall 22 is formed at both right and left sides of the rear edge of the bottom 20 by use of a part of the reinforcing plate 33. A vertical reinforcing plate 44 just fitted in the inside of the rear side buffer wall 22 with a hollow structure in the width and the height and erected at the right angle against the bottom wall 20 along a crease, is provided in the reinforcing plate. And a horizontal reinforcing plate 45 superposed on the inside face of the upper face plate 26 forming the rear side buffer wall 22 is provided through a crease at the upper end of the vertical reinforcing plate 44. Accordingly, the hollow buffer wall 22 set at the rear side of the bottom wall 20 is reinforced by the reinforcing plates 44, 45 fitted in the inside, in the packing buffer and hence, the resistance against loads is increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning body made of cardboard or the like for filling a space between an article and a packaging box and protecting the article from impact when the article is packed in a packaging box. Regarding

[0002]

2. Description of the Related Art Conventionally, as this type of cushioning body, there is one which is assembled from a blank of cardboard such as a corrugated board shown in the development view of FIG.

As shown in FIG. 8, this one has buffer walls 2 and 3 along both sides and a rear side of a rectangular bottom wall 1.

Of the buffer walls 2 and 3 along these three sides, the buffer wall 3 on the rear side is a rear face plate 4 which stands upright at the rear side of the bottom wall 1.
An upper surface plate 5 continuously connected to the upper edge of the rear surface plate 4 in parallel to the bottom wall 1, and a front surface plate continuously connected to the front edge of the upper surface plate 5 at right angles to the bottom wall 1. The front plate 6 has an engaging piece 8 that fits in an engaging hole 7 formed in the bottom wall 1.

Further, the buffer walls 2 on both sides are folded in two by folds 10 which are connected to both sides of the bottom wall 1 through folds 9, and stand upright at a right angle to the bottom wall 1. A reinforcing plate 11 and a three-wall plate including an outer plate 12, an upper side plate 13, and an inner plate 14 which cover the outer surface with the reinforcing plate 11 as a core. The edge is connected to both sides of the rear plate 4 via the fold line 15.
Further, an engaging piece 17 that fits into an engaging hole 16 formed in the bottom wall 1 is formed at the lower edge of the inner plate 14.

[0006]

By the way, of the above-mentioned three sides of the buffer wall, the buffer walls 12 on both sides have outer surfaces of the outer wall 12 and the outer surface of the reinforcing plate 11 folded in two. Since the structure is sandwiched by the upper side plate 13 and the inner plate 14, it has high strength against deformation, but the buffer wall 3 on the rear side.
Has a square tubular hollow structure including a rear plate, a top plate 5, and a front plate 6, and therefore has a problem that load resistance is small and the hollow structure is easily crushed.

Therefore, the present invention intends to reinforce the buffer wall having a hollow structure on the rear side to improve the load resistance of the buffer wall on the rear side.

[0008]

In order to solve the above-mentioned problems, the present invention has a buffer wall along both sides of a rectangular bottom wall and three sides of the rear side, and the buffer wall on the rear side is provided. , A rear face plate standing upright at the rear side of the bottom wall, an upper face plate continuously connected to the upper edge of the rear face plate in parallel to the bottom wall, and a front end edge of the upper face plate with respect to the bottom wall. In a packaging cushion made of cardboard or the like formed in a hollow structure consisting of a front plate continuously connected at right angles, cuts parallel to the rear side of the bottom wall on both left and right sides of the rear edge of the bottom wall. And a crease perpendicular to the rear side of the bottom wall and having a width that fits snugly inside the buffer wall on the rear side of the hollow structure and that stands upright with respect to the bottom wall. , The inner surface of the upper plate that forms the rear buffer wall.

Further, the left and right reinforcing plates are composed of a vertical reinforcing plate perpendicular to the bottom wall and a horizontal reinforcing plate formed on the upper end of the vertical reinforcing plate, and the left and right horizontal reinforcing plates are butted against each other. It was designed to match.

[0010]

With the above structure, since the buffer wall having a hollow structure on the rear side is reinforced by the reinforcing plate that fits tightly inside, it is difficult to deform and has high load resistance.

The left and right reinforcing plates are composed of a vertical reinforcing plate perpendicular to the bottom wall and a horizontal reinforcing plate formed at the upper end of the vertical reinforcing plate. The left and right horizontal reinforcing plates are butted against each other and engaged with each other. If so, the vertical reinforcing plate is less likely to fall in the hollow cushioning wall, so that the strength is further increased.

The reinforcing plate is located on both the left and right sides of the rear edge of the bottom wall, and a part of the reinforcing plate forming the core of the buffer wall on both sides can be used. There is no waste.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 4 show a first embodiment of a packing cushioning body of the present invention.

The packing cushioning body of the present invention has a rectangular bottom wall 2.
Buffer walls 21, 22 along the three sides of 0 and both sides
And is assembled from a cardboard blank such as a corrugated board shown in FIG.

Of the buffer walls 21, 22 along the above three sides,
The buffer wall 22 on the rear side is continuously provided on the rear side of the bottom wall 20 with a rear face plate 24 which is bent at a right angle by a fold line 23 and stands up, and an upper end edge of the rear face plate 24 via the fold line 2.
An upper surface plate 26 parallel to the bottom wall 20 and the upper surface plate 26
The hollow structure has a square tubular shape and is composed of a front plate 28 that is connected to the front edge of the through a fold line 27 and is perpendicular to the bottom wall 20. In addition, the fold 2 is formed on the lower edge of the front plate 28.
Overlap plate 30 that is folded over the upper surface of the bottom wall 20 via 9
Are lined up.

The buffer walls 21 on both sides are continuously provided on both sides of the bottom wall 20 through folds 31, and the folds 31 stand upright at a right angle to the bottom wall 20 and folds 32.
Reinforcing plate 33 that is folded in two by means of an outer plate 34, and an outer plate 34 that covers the outer surface with the reinforcing plate 33 as a core.
And three wall plates in which the upper side plate 35 and the inner plate 36 are connected by two parallel folds 37 and 38,
The rear edge of the outer plate 34 is connected to both sides of the rear plate 24 by folds 39.

At the lower end edge of the inner side plate 36, an engaging projection piece 4 fitted in an engaging hole 40 formed along both sides of the bottom wall 20.
1 is formed.

On the left and right sides of the rear edge of the bottom wall 20,
A part of the bottom wall 20 and a part of the reinforcing plate 33 are used to form a reinforcing plate of the buffer wall 22 on the rear side. This reinforcing plate has two notches 42 parallel to the rear side of the bottom wall 20.
And a fold line 43 perpendicular to the rear side of the bottom wall 20, and the width and height of the buffer wall 22 at the rear side of the hollow structure.
A vertical reinforcing plate 44 standing upright at a right angle by the fold line 34 is provided with respect to the bottom wall 20 of a size that fits snugly inside, and the buffer wall 22 on the rear side is formed at the upper end of the vertical reinforcing plate 44. A horizontal reinforcing plate 45, which is superposed on the inner surface of the upper surface plate 26, is provided via a fold line 46.

The ends of the left and right horizontal reinforcing plates 45 are formed so as to abut each other, and an engaging protrusion 47 and an engaging recess 48 into which the engaging protrusion 47 is fitted are formed at the abutting portions. .

A notch 49 is formed at the front end of the fold 43 of the vertical reinforcing plate 44, and a notch 5 that engages with the notch 49 is formed in the overlapping plate 30 of the rear buffer wall 22.
0 is provided.

The assembly sequence of the blank shown in FIG. 1 is as follows.

First, the left and right folds 31 of the bottom wall 20 are valley-folded, the reinforcing plate 33 is erected at a right angle to the bottom wall 20, and the folds 32 are mountain-folded to fold the reinforcing plate 33. Next, the folds 43 are folded in a fold, and the vertical reinforcing plates 44 are erected at right angles to the bottom wall 20, and then the horizontal reinforcing plates 45 are bent horizontally by the folds 46 so that the tips of the left and right horizontal reinforcing plates 45 are bent. The engagement protrusion 47 and the engagement recess 48 are fitted together. Then, the outer side plate 34 and the upper side plate 35
After the inner plate 36 is formed into a U shape by folding two parallel folds 37 and 38 into a U shape, and the fold 39 is formed into a valley fold, and the outer plate 34 is bent at a right angle to the rear face plate 24. Fold the fold line 23 into a valley fold and set the rear plate 24 to the bottom plate 20
The outer plate 34 formed in a U shape while standing upright with respect to
The upper side plate 35 and the inner side plate 36 are covered with the reinforcing plate 33 standing upright with respect to the bottom wall 20, and the engaging protrusions 4 of the inner side plate 36 are covered.
When 1 is fitted into the engagement hole 40, the state shown in FIG. 2 is obtained. Thereafter, the creases 25, 27, 29 are respectively folded in a fold, and the vertical reinforcing plate 44 and the horizontal reinforcing plate 45 are wound while the notch 50 of the overlapping plate 30 is fitted into the notch 49 of the vertical reinforcing plate 44. 24, top plate 2
6. When the front plate 28 is assembled into a square tube shape, the shock absorber in the state shown in FIG. 3 is completed.

Next, FIGS. 5 and 6 show a second embodiment of the packing cushioning body of the present invention.

In the second embodiment, the overlapping plate 30 in the first embodiment is omitted, an engaging projection 51 is formed at the center of the lower edge of the front plate 28, and the lower end edge of the front plate 28 is formed. An engaging projection piece 51 is formed in the center, and the engaging projection piece 51 is fitted into an engaging hole 52 formed in the bottom wall 20 to form a rectangular tubular buffer wall 22. The other structure is the same as that of the first embodiment.

[0026]

As described above, according to the packing cushioning body of the present invention, the hollow cushioning wall provided on the rear side of the bottom wall is reinforced by the reinforcing plate fitted therein, and the load-carrying capacity is improved. Therefore, it is possible to prevent the buffer wall having a hollow structure from being crushed and damaging the article even when it is used for packing a heavy article.

The reinforcing plate for reinforcing the buffer wall on the rear side is
Since it can be formed by using a part of the reinforcing plate forming the core of the buffer wall on both sides, there is also an effect that the material is not wasted.

[Brief description of drawings]

FIG. 1 is a first embodiment of the present invention.

FIG. 2 is a perspective view showing the assembling process of the above.

FIG. 3 is a perspective view showing an assembled state of the same.

FIG. 4 is a vertical side view of the above.

FIG. 5 is a development view of the second embodiment of the present invention.

FIG. 6 is a perspective view showing the assembling process of the above.

FIG. 7 is a development view of a conventional example.

FIG. 8 is a perspective view of a conventional example in which a rear side buffer wall is opened.

[Explanation of symbols]

20 Bottom wall 21, 22 Buffer wall 23, 25, 27, 29, 31, 32, 37, 38, 3
9, 43, 46 Folds 24 Rear plate 26 Top plate 28 Front plate 30 Overlapping plate 33 Reinforcing plate 34 Outer plate 35 Top side plate 36 Inner plate 40, 53 Engaging hole 41, 51 Engaging protrusion 42 Fold 44 Vertical reinforcing plate 45 Horizontal reinforcing plate 47 Engaging protrusion 48 Engaging recess 49, 50 Notch

Claims (2)

[Claims] 1. A rear face plate which has buffer walls along both sides of a rectangular bottom wall and three sides of the rear side, the rear side buffer wall standing upright at a right angle to the rear side of the bottom wall, and An upper surface plate continuously provided parallel to the bottom wall on the upper edge of the face plate, and a front edge of the upper surface plate,
In a cushioning body made of cardboard, such as corrugated board, formed in a hollow structure consisting of a front plate continuously connected to the bottom wall at right angles, on the left and right sides of the rear edge of the bottom wall on the rear side of the bottom wall. Against the bottom wall, which is delimited by parallel cuts and folds perpendicular to the rear side of the bottom wall, and whose width fits snugly inside the buffer wall at the rear side of the hollow structure. A packing cushioning body characterized in that a standing reinforcing plate is brought into contact with an inner surface of a top plate which forms a buffering wall on the rear side. 2. The left and right reinforcing plates are composed of a vertical reinforcing plate perpendicular to the bottom wall and a horizontal reinforcing plate formed on the upper end of the vertical reinforcing plate, and the left and right horizontal reinforcing plates abut each other. The packing cushion according to claim 1, which engages.