JPH09156631A - Variable height box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box which has excellent rigidity and permits no dust to enter the inside of the box. SOLUTION: Folding lines 6, 11 are formed at side plates 4 and end plates 9. Supporting pieces 7 which meet the inner surface of the end plate 9 are formed at both edges of the side plate 4 positioned above the folding line 6, and the heights of the upper edge of the supporting piece 7 and the upper edge of the side plate 4 are roughly made to meet each other. The end plate 9 and the side plate 4 are restrained from inclining by the supporting piece 7 to hold its shape firmly. A clearance between the side plate 4 and the end plate 9 is covered to inhibit dust from entering the inside of the box.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box for packing books and the like, and more particularly to a height-adjustable box whose height dimension can be changed according to stored articles having different heights.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
A cylindrical body 53 is formed by a pair of side plates 51 and end plates 52 rising from the peripheral edge of the cylindrical body 53. A horizontal fold line 54 is provided around the cylindrical body 53, and the side plate 51 and the end plate 52 are adjacent to each other. A cover plate 56 is formed on the ridge line from the upper end to the crease line 54, and is formed continuously with the upper edge of the side plate 51.
A variable height box is known in which the upper opening of the tubular body 53 is covered with a lid flap 57 that is continuously provided on the upper edge of the end plate 52.

This variable height box has such a high height as described above according to the height of the stored items, and, as shown in FIG. 8, the side plate 51 and the end plate 52 with the fold line 54 as an axis. It is possible to switch the upper part to a state in which the height is lowered by bending the upper part together with the lid plate 56 and the lid flap 57, respectively.

[0004]

However, in the height variable box as described above, when the portion of the end plate 52 located above the fold line 54 is pushed from the outside in a state where the height is high as shown in FIG. However, this portion may fall inward, and accordingly, the portion of the side plate 51 located above the fold line 54 may also fall inward.

Further, dust may enter the box through the notch 55.

Therefore, an object of the present invention is to provide a height-adjustable box which is excellent in rigidity and in which dust does not enter.

[0007]

In order to solve the above problems, the present invention forms a tubular body by standing up side plates connected to both side edges of a bottom plate and end plates connected to both end edges. , A fold line extending in the horizontal direction is provided on the tubular body, and adjacent side plates and end plates are fixed below the fold line, a lid plate is continuously provided on the upper edge of the side plate, and a lid flap is provided on the upper edge of the end plate. Then, a support piece along the inner surface of the end plate is continuously provided on both side edges of the side plate located above the fold line, and the upper edge of the support piece and the height of the upper edge of the side plate are substantially matched. Of.

[0008]

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

As shown in FIG. 6, the variable height box according to the present invention is composed of two first members 1 and one second member 2. The first member 1 and the second member 2 are made of corrugated cardboard, and the step directions of the members 1 and 2 are oriented in the height direction during assembly.

The first member 1 has a side plate 4 and a cover plate 5 connected in series.
A fold line 6 extending horizontally is formed on the side plate 4, and the fold line 6 is formed.
Support pieces 7 are continuously provided on both side edges of the side plate 4 sandwiched by the cover plate 5.

The second member 2 includes the bottom plate 8 and the end plates 9 extending from both edges thereof.
And lid flaps 10 are successively arranged, a fold line 11 extending in the horizontal direction is formed on each end plate 9, and glued pieces 8a, 9a are continuously arranged on both side edges of the bottom plate 8 and each end plate 9, respectively. Has been done.

To assemble the above members into a box as shown in FIG. 1, first, the end plates 9 are erected from both end edges of the bottom plate 8 and the glued pieces 8a, 9a are bent inward to form the outer surface of the side plate 4. The cylindrical body 13 is formed by stacking and adhering the same to. By adhering the glued pieces 8a and 9a, the ridge lines of the side plate 4 and the bottom plate 8 and the ridge lines of the side plate 4 and the end plate 9 are reinforced. In the tubular body 13, the height of the side plate 4 and the end plate 9 and the fold line 6,
The heights of 11 are substantially the same.

Then, the supporting piece 7 is placed along the inner surface of the end plate 9 to store articles such as books in the box body, and then the lid flap 1
0 is folded inward, the lid plate 5 is folded inward as shown in FIG. 2, the upper opening of the cylindrical body 13 is closed, and the packing tape is attached from the abutting portion of the lid plates 5 to the both end plates 9 for packing. Complete.

In this state, the supporting piece 7 prevents the end plate 9 from being folded inward at a portion located above the fold line 11, and as shown in FIG. 3, the upper edge of the supporting piece 7 is covered. Since the tilting of the side plate 4 is suppressed by coming into contact with the flap 10, the shape is firmly held. In addition, the crease line 6,
The gap between the side plate 4 and the end plate 9 above 11 is closed by the support piece 7, so that the entry of dust into the box is prevented.

In addition to the above-described high state depending on the height of the stored article, as shown in FIG. 4, the upper part of the side plate 4 is inward with the lid plate 5 with the fold line 6 as an axis. The upper portion of the end plate 9 and the lid flap 1 which are bent and bent inward on the bent portion with the fold line 11 as an axis as shown in FIG.
It is also possible to stack 0s, attach the gum tape from the abutting portion of the lid flaps 10 to the both side plates 4, and package the product with the height reduced.

In the above embodiment, the first member 1 and the second member 2 are two sheets, and the two members 1 and 2 are punched out of the corrugated cardboard material without waste so that the material can be efficiently used. However, it may be composed of a single development substrate.

[0017]

As described above, in the variable height box according to the present invention, the support pieces along the inner surface of the end plate are connected to both side edges of the side plate located above the fold line, and the upper end edge of the support piece is connected. Since the heights of the upper edge of the side plate and the upper edge of the side plate are substantially the same, tilting of the end plate and the side plate is suppressed and the shapes are firmly held in a high state.

Further, since the support piece closes the gap between the side plate and the end plate, dust is prevented from entering the box.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a high-height state of an embodiment of a variable-height box according to the present invention.

FIG. 2 is a perspective view showing a packaging state of the same.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a perspective view showing a state in which the height of the same is low.

FIG. 5 is a perspective view showing a packaging state of the above.

FIG. 6 is a diagram showing a development substrate of the above.

FIG. 7 is a perspective view showing a state in which a conventional variable height box has a high height.

FIG. 8 is a perspective view showing a state in which the height above is low.

[Explanation of symbols]

 4 Side plate 5 Lid plate 6, 11 Fold line 7 Support piece 8 Bottom plate 9 End plate 10 Lid flap 13 Cylindrical body

Claims (1)

[Claims] 1. A cylindrical body 13 is formed by erecting side plates 4 continuously provided on both side edges of a bottom plate 8 and end plates 9 continuously provided on both side edges, and a fold line 6 extending horizontally in the cylindrical body 13. , 11 are provided, the side plate 4 and the end plate 9 adjacent to each other below the fold lines 6, 11 are fixed to each other, and the lid plate 5 is connected to the upper end edge of the side plate 4 and the lid flap 10 is connected to the upper end edge of the end plate 9. The support piece 7 is provided continuously along the inner surface of the end plate 9 at both side edges of the side plate 4 located above the fold line 6, and the heights of the upper end edge of the support piece 7 and the upper end edge of the side plate 4 are substantially equal to each other. Adjustable height adjustable box.