JP3001515B1 - paper box - Google Patents

Abstract

A paper box with a double end wall that is easy to disassemble is provided. SOLUTION: An outer plate 2 and an outer end plate 5 are connected by a holding piece 9 having a 45 ° bent line 8 extending from a corner of the substrate 1, and folding pieces 10 are provided at both ends of an inner plate 3 to form a square bent line 8. In a paper box in which the side wall 13 and the end wall 14 are maintained in an upright state by sandwiching the holding piece 9 and the folding piece 10 which are folded in two between the outer end plate 5 and the inner end plate 6, 9
A perforation 11 is formed as a flexible means in a portion between the square fold line 8 and the outer end plate 5, and the edges of the holding piece 9 and the folding piece 10 are formed in an arc shape centering on the corner of the substrate 1. . When the side wall 13 is to be pulled down to the outside, the holding piece 9 becomes
From the vicinity of the outer end plate 5 and the inner end plate 6 while continuously bending toward the outer end plate 5 through the perforation 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray-shaped paper box having a double end wall.

[0002]

2. Description of the Related Art Generally, a blank as shown in FIG.
A paper box assembled in the form shown in FIG. 8 is used. In this paper box, a pair of side walls 51 and 51 and end walls 52 and 52 are provided around a substrate 50, and the end wall 52 is separated from an outer end plate 53 and an inner end plate 54 that are sequentially connected to the edge of the substrate 50. The side wall 51 is composed of an outer plate 55 and an inner plate 56 which are sequentially connected to side edges of the substrate 50, and the outer end plate 53 and the outer plate 55 are bent at 45 ° extending from corners of the substrate 50. 57, a folding piece 59 is connected to both ends of the inner plate 56, and the folding piece 59 and the folding piece 59, which are folded in two along the corner folding line 57, are connected to the outer end plate 53.
The inner wall 54 and the inner end plate 54 are sandwiched between the side walls 51 and the end wall 52 to maintain the upright state. Is suppressed by the bent piece 61 to prevent the lower end of the inner end plate 54 from protruding.

[0003]

By the way, in order to flatten the above-mentioned paper box at the time of disposal and to reduce its bulk, the side wall 5 is required.
1 and the end wall 52 must be released, but in the paper box, the holding piece 58 and the folding piece 59 cannot be pulled out from between the outer end plate 53 and the inner end plate 54, and Since the bent pieces 60 and 61 are superposed, it is also difficult to release the engagement by flipping up the inner end plate 54.

Accordingly, an object of the present invention is to provide a paper box having a double end wall which can be easily disassembled.

In order to solve the above problems, the present invention provides a pair of side walls and an end wall around a substrate,
It comprises an outer end plate and an inner end plate sequentially connected to the substrate,
45 ° extending the outer end plate and the side wall from the corner of the substrate
Are connected by a holding piece having a square folding line, and the holding piece is folded in two along the square folding line and sandwiched between an outer end plate and an inner end plate to maintain the upright state of the side wall and the end wall. In the paper box, the portion between the corner folding line of the holding piece and the outer end plate
A ruled line parallel to the corner folding line is provided so that the edge of the holding piece does not interfere with the continuous portion of the outer end plate and the inner end plate when pulled down to the outside of the side wall.

In this paper box, when the side wall is to be pulled outward, the holding piece comes out from between the outer end plate and the inner end plate while continuously bending from the vicinity of the corner fold line to the outer end plate side, so that the side wall is pulled out. The engagement with the end wall is released.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the blank shown in FIG. 1, an outer plate 2, an inner plate 3 and a bent piece 4 are connected to both side edges of a substrate 1, and an outer end plate 5, an inner end plate 6 and a bent piece 7 are sequentially connected to both end edges. Has been established. The outer plate 2 and the outer end plate 5
The holding plate 9 is connected by a holding piece 9 having a 45 ° bending line 8 extending from a corner of the substrate 1, and a folding piece 10 is continuously provided at both ends of the inner plate 3.

The edges of the holding piece 9 and the folding piece 10 are formed in an arc shape centering on the corner of the substrate 1.
In the portion between the square fold line 8 and the outer end plate 5, two perforations (ruled lines ) 11 parallel to the square fold line 8 are formed as flexible means . Also, in FIG. 1, in addition to the blank, showing the pad 12 for reinforcing the substrate 1.

The above blank is assembled in the form shown in FIG. 4 through the steps shown in FIGS. At the time of this assembly, while folding the holding piece 9 along the corner folding line 8,
The outer plate 2 and the outer end plate 5 are simultaneously erected, the inner plate 3 and the inner end plate 6 are bent inward and downward, and the side wall 13 is placed inside the outer end plate 5 along the inner plate 3 along the outer plate 2. An end wall 14 is formed along the end plate 6, a pad 12 is laid on the substrate 1 as necessary, and the bent piece 4 is superimposed on the bent piece 7. In this assembled state, the sandwiching piece 9 and the folding piece 10 are sandwiched between the outer end plate 5 and the inner end plate 6 so that the upright state of the side wall 13 and the end wall 14 is maintained, and the bent piece 7 Of the inner end plate 6 is prevented from protruding.

This paper box is, as shown in FIGS.
When the side wall 13 is to be pulled down outward, the sandwiching piece 9 is bent between the outer end plate 5 and the inner end plate 6 while continuously bending toward the outer end plate 5 through the perforation 11 from the vicinity of the square fold line 8. Get out of As described above, since the engagement between the side wall 13 and the end wall 14 is released, the flattening can be easily performed.

The above structure can be applied to both the body and the lid of the paper box.
A similar configuration can be adopted for a paper box provided with a picture frame on the top of the paper box.

Further, the inner plate 3, the bent pieces 4, 7 and the folded piece 10 are omitted, and the lower end of the inner end plate 6 is connected to the substrate 1 or the outer plate 2 instead of overlapping the bent pieces 4, 7. By combining
The approach may be prevented.

[0013]

As described above, the paper box according to the present invention is
With the above configuration, when the side wall is to be pulled outward, the holding piece comes out from between the outer end plate and the inner end plate while continuously bending from the vicinity of the corner fold line to the outer end plate side, and the side wall is formed. Is disengaged from the end wall, and can be easily flattened and discarded without being bulky.

[Brief description of the drawings]

FIG. 1 is a view showing a blank of a paper box according to the present invention.

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

FIG. 3 is a perspective view showing an assembling process of the same.

FIG. 4 is a perspective view showing an assembled state of the above.

FIG. 5 is a perspective view showing a disassembly process of the above.

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

FIG. 7 is a diagram showing a blank of a conventional paper box.

FIG. 8 is a perspective view showing an assembled state of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Outer plate 3 Inner plate 4, 7 Folded piece 5 Outer end plate 6 Inner end plate 8 Square fold line 9 Nipping piece 10 Folded piece 11 Perforation 12 Pad 13 Side wall 14 End wall

Claims (1)

(57) [Claims] 1. A pair of side walls and an end wall are provided around a substrate, and the end wall is composed of an outer end plate and an inner end plate sequentially connected to the substrate, and the outer end plate and the side wall are connected to each other. The side walls and the end walls are erected by connecting them with a holding piece having a 45 ° bent line extending from a corner of the substrate, folding the holding piece in two along the bent line, and sandwiching it between the outer end plate and the inner end plate. In a paper box that is maintained in a state, a ruled line parallel to the square fold line is provided at a portion between the square fold line of the holding piece and the outer end plate, and the edge of the holding piece is removed when pulled down to the outside of the side wall. A paper box characterized in that it does not interfere with a continuous portion between an end plate and an inner end plate.