JP2000185732A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box in which a lid panel and a bottom panel can be easily cut away without using any cutter and the like and folded and dust caused by cutting a connected part is not produced. SOLUTION: There is provided a packing box in which each of end panels 21, 22, 23 and 24 is extended from one end of four side panels 13, 14 forming side surfaces, and after one of the opposing end panels 21, 23 is bent, the other opposing end panels 22, 24 are bent, connected to each other and sealed. Each of the other pair of end panels 22, 24 is formed with slit lines 110, 110 composed of substantial 'semi-U-shaped' slits gradually expanding from the substantial central part of the end section toward an interface part with the side panel. A non-contacted portion 120 of the end panels 22, 24 is pulled up, thereby it can be easily cut from a connected part 130, folded and further during this operation, no dust is produced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box for storage made by folding a cardboard or the like, and more particularly to an improved structure of a packaging box that can be easily folded after being assembled and used.

[0002]

2. Description of the Related Art A cardboard box formed by cutting a corrugated cardboard or the like into a predetermined shape and assembling the cardboard box has been conventionally widely used as a storage box structure for storing various products and articles therein. Various structures are known. For example, as an example, a lid panel and a bottom panel are formed by extending an end panel from an upper end and a lower end of four side panels, and a lid panel and a bottom panel are respectively bonded with an adhesive or the like to form a box. What to assemble is already known.

[0003]

However, the above-mentioned conventional packaging box for storage has the following disadvantages or disadvantages. That is, after assembling and using such a box, it is necessary to fold the box in order to collect it, but for this purpose, it is necessary to separate and cut off the joint of the bottom panel with a cutter or the like. Is required. For this reason, a large amount of dust is generated when the bottom panel is separated, and the dust is required to be dismantled together with the subsequent dust treatment.

[0004] Further, in the above-mentioned conventional packing box for storage, when cutting off and cutting off the joint portion of the bottom panel, a cutting tool such as a cutter is required, as described above. The work involves risks.

Therefore, in the present invention, in consideration of the above-mentioned problems in the packaging box according to the prior art, the folding can be easily performed without performing a dangerous operation using a cutting tool such as a cutter. The joint of the lid panel and / or the bottom panel can be easily cut off, without the dust being generated by cutting off the joint,
An object of the present invention is to provide a packaging box having an improved structure.

[0006]

According to the present invention, in order to achieve the above object, according to the present invention, end panels are respectively extended from at least one end of four side panels forming side surfaces, and one of the end panels is opposed to the other. After folding the pair of end panels, in a packaging box body that is formed by folding and joining the other pair of opposite end panels and sealing the one end of the box body, the other pair of end panels includes: On each side of the substantially central portion, a joint portion with the pair of the one end panels is formed, and from the substantially central portion of the end portion of the other end panel toward the boundary portion with the side panel. While forming a non-joined part,
Furthermore, a packaging box body is proposed in which a pair of cut lines are formed between the joined portion and the non-joined portion so that the non-joined portion can be cut off while being integrated.

Further, according to the present invention, in the packaging box described above, the pair of cut lines formed between the joined portion and the non-joined portion are connected to an end portion of the other end panel. Is formed so as to gradually spread from a substantially central portion toward a boundary portion with the panel.

Further, according to the present invention, in the packaging box described above, the pair of cut lines formed between the joined portion and the non-joined portion are respectively provided on the other end panel. It is formed substantially in the shape of a letter outward from a substantially central portion of the end toward the boundary with the panel.

According to the structure of the packaging box of the present invention,
By cutting the end panel that seals at least one end of the box body with the non-joined portion being integrated by the pair of cut lines formed above, the pair of the one end panel and the other end panel are cut off. The joint between the pair is released to allow its folding. At this time, the non-joined portion remains unified, and no dust is generated.

[0010] The pair of cut lines may be formed so as to gradually widen from a substantially central portion of an end of the other end panel toward a boundary portion with the panel, or alternatively, an end of the other end panel. The non-joined portion can be easily and easily cut even by a manual operation by forming the portion in a substantially "L" shape outward from a substantially central portion of the portion toward a boundary portion with the panel.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 2 of the accompanying drawings shows a state in which one sheet of paperboard constituting a packaging box for storage according to an embodiment of the present invention is developed. The development sheet of the storage packaging box is, for example, prepared by cutting cardboard in advance.

The paperboard 10 shown in FIG. 2 has side panels 11, 12 for forming four side surfaces of a box formed continuously.
13, 14, and a joining portion 15 which is extended to a side (right side in the drawing) of the side panel 14 and is joined to the side panel 11.
From the upper end, respectively, end panel 2
1, 22, 23 and 24 are extended, and end panels 31, 32, 33 and 34 are extended from the lower end, respectively.

In a state where the joining portion 15 of the side panel 14 is joined to the side panel 11 by, for example, an adhesive, and then assembled as a box, these end panels 2 are attached.
1, 22, 23, 24, or 31, 32, 33,
34 is a pair of end panels facing each other (for example, end panels 21 and 22 or end panels 31 and 32).
Is folded inward along a valley fold line (indicated by dashed lines in the figure), and then the other opposing pair of end panels (eg, end panels 22 and 24 or end panels 32 and 34).
Is also folded inward along a valley fold line (indicated by a dashed line in the figure), and the space between them is joined with an adhesive to assemble as a box.

As is apparent from FIG. 2, the pair of opposite end panels 22 and 24 or the end panel 3
Each of 2 and 34 is formed with a pair of cut lines that are formed so as to gradually widen from a substantially central portion of an end portion of the end panel (upper and lower ends in the drawing) to a boundary portion with the side panel. Have been. That is, for example, in the end panel 22, a pair of cut lines 110 and 11 extends from a substantially central portion of the end 22 e toward the boundary 12 b with the side panel 12.
0, and the other end panels 24, 32, 3
The same applies to No. 4. And the score line 110 is
As is apparent from the figure, the cutouts are formed by a plurality of cuts formed in a substantially “L” shape from the inside to the outside.

That is, in the end panels 22 and 24 or the end panels 32 and 34, the inner region is formed by the pair of cut lines 110,
On the other hand, a region outside the region is a bonding portion 130. And these upper and lower end panels 21, 22, 23,
24, when assembling the end panels 31, 32, 33, 34 into a box, the position 1 corresponding to the joint 130 of the one end panels 21, 23 or 31, 33
31, 131, for example, by applying an adhesive by a dispenser (not shown) (indicated by hatching in the figure), and then the other end panels 22, 24 or 32, 3
4 and put it together to complete the box.

Next, FIG. 1 shows a state after assembling the box body according to the present invention, which is shown in the developed view above. In particular, FIG. End panel 22,
FIG. 1B shows a state before cutting off the end panels 22 and 24 along the cut lines 110, and FIG. 1B shows a state after cutting off the end panels 22 and 24 along the cut lines 110, 110.

As is apparent from these figures, in the box according to the present invention, after assembling, the other end panels 22, 24 are cut by the cut lines 110, 110.
By separating the non-joined portions 120, 120 from the joined portions 130, 130, the one end panels 21, 23 are separated.
Can be separated from the junction with In this case, according to the cut lines 110, 110, the non-joined portions 120 of the other end panels 22, 24 are lifted upward in the drawing (arrows in the drawing) so that they can be cut by a cutter or the like. Can be easily separated without using a cutting tool, and the non-joined portions 120, 120
It remains integral with the side panels 12, 14 and can prevent generation of dust.

Further, the other end portion (for example, the bottom portion) of the box body is also subjected to the same operation as above using the cut lines 110, 110. By disconnecting the joint between the end panels 32, 34, the disassembly and folding of the end panels 32 and 34 can be easily performed, and the collection can be performed. At that time, it is possible to easily cut off without using a cutter such as a cutter, and the non-joined portions 120 are still integrated with the side panels 12 and 14. , Dust can be prevented from being generated.

In the above-described embodiment, the structure in which the other end panels 22, 24 can be separated from the non-joined portions 120, 120 from the joined portions 130, 130 by the cut lines 110, 110. Although the present invention has been described as being employed at the upper and lower ends (the lid surface and the bottom surface), however, the present invention is not limited to this, and, for example, is employed only at one (particularly, the bottom surface) and It will be apparent to those skilled in the art that the same effect as described above can be obtained by providing a normal lid panel.

Further, in the above embodiment, the other end panels 22, 2 are formed by the cut lines 110, 110,.
4, the shape of the non-joined portions 120, 120 has been described as a shape that gradually widens from substantially the center of the ends 22e, 24e of the end panels toward the boundaries 12b, 14b with the side panels. However, the non-joined portions 120, 12
It will be apparent to those skilled in the art that any structure may be used as long as the structure can be separated from the joints 130 by pulling the 0 upward, and the structure is not necessarily limited to the above-described shape.

However, according to the results of various experiments and the like by the present inventors, the non-joined portions 12 formed on the other end panels 22, 24 by the cut lines 110, 110.
0, 120, as described above, at the end 2 of the end panel.
Boundary part 12 from the approximate center of 2e, 24e to the side panel
b, 14b, the non-joined portions 120, 120 are lifted upward, so that they are not interrupted on the way to the boundary portion 12 with the side panel.
It has been confirmed that cutting is reliably performed to b and 14b, which is a preferable shape.

The non-joined portion 120 is connected to the joined portion 130
Also, according to the results of various experiments and the like by the present inventors, the cut line 110 for separating from the inside is substantially shaped like a “shi” from the inside to the outside as shown in the above-mentioned figure. By forming in the shape, the non-joined portion 120,
It has been confirmed that when the 120 is pulled upward, it is surely cut to the boundary portions 12b and 14b with the side panels without interruption.

[0023]

As is apparent from the above detailed description, according to the packaging box of the present invention, the lid panel and / or the bottom can be formed without performing a dangerous operation with a cutting tool such as a cutter. Panel joints can be easily separated,
At this time, dust is not generated by cutting off the joint portion, and the folding and collection work can be easily and easily performed, which is an excellent practical effect. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before and after cutting off an end panel after assembling a packaging box according to an embodiment of the present invention.

FIG. 2 is a development view of a paperboard constituting the packaging box of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Paperboard 11 Side panel 12 Side panel 13 Side panel 14 Side panel 12b Boundary part 14b Boundary part 21 End panel 22 End panel 23 End panel 24 End panel 22e End 24e End 31 End panel 32 End panel 33 End panel 34 End panel 110 score line 120 non-joined part 130 joined part

Claims (3)

[Claims] 1. An end panel is extended from at least one end of four side panels forming a side surface, and a pair of opposite end panels is bent, and then the other pair of opposite end panels is connected. In the packaging box body formed by bending and joining and sealing the one end of the box body, the other pair of end panels have a pair of the one end panels on both sides of a substantially central portion thereof, respectively. And forming a non-joined portion from a substantially central portion of an end of the other end panel toward a boundary portion with the side panel, and further,
A box for packaging, wherein a pair of cut lines are formed between the joined portion and the non-joined portion so that the non-joined portion can be cut as it is. 2. The pair of cut lines formed between the joined portion and the non-joined portion gradually from a substantially central portion of an end portion of the other end panel toward a boundary portion with the panel. The packaging box according to claim 1, wherein the packaging box is formed so as to extend. 3. The pair of cut lines formed between the joined portion and the non-joined portion are respectively formed from a substantially central portion of an end portion of the other end panel toward a boundary portion with the panel. The packaging box according to claim 1, wherein the packaging box is formed in a substantially “S” shape on the outside.