JPH11321845A - Packaging case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size per sheet for a member, to reduce the size of blanking die and a working space, and to make connecting members unnecessary by a method wherein two members being the same in shape are formed on fabricating a packaging case such as corrugated board box, and the packaging case is fabricated by combining turning-in pieces and slits of these members together. SOLUTION: On fabricating a packaging case, two members A and B, being the same in shape, are formed first of all by blanking. Then, both of panel parts 1 and 2 and both of turning-in pieces 3 and 4 of one member A are bent respectively toward the inside. Both of panel parts 18 and 19 and both of turning-in pieces 20 and 21 of the other member B are bent likewise respectively toward the inside. Then, both of the members A and B are placed face-to-face and slits 5, 6 and 23, 22 of both of the members are combined with one another. After that, while both of short flaps 10 of both of the members A and B are bent inward and both of long flaps 25 are bent onto the upside of the short flaps, the joint of both of the long flaps 25 are shut with a sticking tape and the bottom is formed for the case, and thereby a packaging case having upwardly-opening flaps is fabricated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box which is formed by using two members cut into the same shape to reduce the production cost.

[0002]

2. Description of the Related Art A conventional packaging box such as a corrugated cardboard box is generally formed by stamping a developing material of a box to be formed as shown in FIG. This required a large punching die, which required a large working space and production line.

[0003] In the conventional assembling of packaging boxes, stitching, boxer wires or adhesives are used to fix the joints, so that the joining process and the joining material take too much time and cost. there were.

[0004] After using a packaging box formed by using stitching, boxer wire or adhesive, the stitching, boxer wire or adhesive used at the junction of the box is also used in dismantling and disposal work. The operation was difficult due to the obstruction of the agent, and at the time of disposal, the paper material of the box and the metal of the wire portion were hardly separated.

[0005]

SUMMARY OF THE INVENTION The present invention saves working space in forming a packaging box and eliminates the conventional stitching, boxer wire and adhesive fastening steps to secure the joints. This will significantly reduce production costs and production time, and at the same time solve all the problems mentioned above, such as enabling easy disassembly and disposal after using the packaging boxes to enable proper waste separation. It is intended to provide a packaging box.

[0006]

As means for solving the problem, (a) As shown in FIG. 1, members A and B having the same shape are stamped and formed. (B) Notch 5 of member A and notch 23 of member B
The cut 6 of the member A and the cut 22 of the member B are engaged with each other. At this time, the folding pieces 3, 4, 20, and 21 are folded inside the box. In this way, the members A and B having the same shape are assembled to form a rectangular tube. (C) Close either the upper or lower flap of the assembled square tube to make it the bottom of the packaging box. It is characterized by being formed as described above.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below. First, the wall portions 1 and 2 of the member A are
1, the fold 3 is indicated by a ruled line 13, and the fold 4 is indicated by a ruled line 12.
Fold each inward at a right angle. Similarly, the wall portions 18 and 1 of the member B
9 is a ruled line 28, the fold 20 is a ruled line 30, and a fold 21
Are folded inward at right angles at the ruled lines 29, and the members A and B are opposed to each other as shown in FIG.

Next, in the opposed members A and B, the cut 5 of the member A and the cut 23 of the member B, and the cut 6 of the member A and the cut 22 of the member B are engaged with each other. At this time, the folded pieces 3 and 4 of the member A and the folded piece 2 of the member B
Engage 0 and 21 so that they are located inside the box.

The opposite short flaps 10 and 27 of the lower flap of the rectangular tube formed in this manner are connected with the ruled lines 17 and 3.
4. Fold it inward in the box at 4 and fold the opposing long flaps 8 and b on the crease lines 15 and 32, and close the joint of both long flaps with the adhesive tape T to form the bottom of the box. As a result, a packaging box having an upwardly opening flap as shown in FIG. 3 is completed. The same box is formed by performing the same operation on the upper flap and turning it over.

In the packaging box formed by the structure of the present invention, four cuts are engaged with each other, and the folded-in pieces are reinforced by making the diagonal two corners double. Can withstand the pressure applied. Therefore, it is characterized in that there is no need to use stitching, boxer wires or adhesives when making boxes.

Since the packaging box has a structure formed of two members having the same shape, by changing the ground color of the material of each of the two members, the packaging box has a colorful appearance with two colors. It is easy to form a box. The combinations are endless by changing the ground color of the members.

The packaging box is made of cardboard paper,
It does not matter whether it is cardboard or plastic.

[0013]

The effects of the present invention will be described below. Since the packaging box of the present invention is formed by combining two members of the same shape, it can be punched out with a mold having a size much smaller than a single die cutting performed conventionally, and the working space is accordingly reduced. Space can be saved and the production line can be shortened.

The box for packaging according to the present invention is not formed by stitching, boxer wire or adhesive as in a conventional box, but by a single-piece method of attaching both ends of the unfolded type to a member A. Since the folded pieces at both ends of the member B are twisted diagonally and engaged with each other on the inside, steps for stitching, using a boxer wire and an adhesive can be omitted.
Therefore, it is possible to significantly reduce the cost of the mechanical equipment and materials of the production line, and at the same time, to shorten the production time required for this step, thereby improving efficiency.

The packaging box of the present invention does not use any conventional stitching boxer wires or adhesives. Therefore, operations such as disassembly and disposal of the packaging box after use are easy, and the labor for separating the paper material from the metal part can be omitted.

Further, since this packaging box has a unique structure as described above, by changing the color of each of the two members, the opposing side surfaces of the box, the flap portion constituting the lid portion and the bottom portion are different. A beautiful packaging box with two colors can be formed. Such a distinctive appearance creates added value in design by itself and greatly expands the range of coloring of the box.

As described above, the effect of the present invention is great, and is useful for solving the resource problem.

[Brief description of the drawings]

FIG. 1 is an exploded view of members A and B having the same shape.

FIG. 2 is a perspective view of the facing members A and B before assembly.

FIG. 3 is a perspective view after assembling provided with an upper opening flap.

FIG. 4 is an exploded view of a conventional packaging box having a joint piece forming a joint.

[Explanation of symbols]

A, B members 1,2,18,19 Walls 3,4,20,21 Folded pieces 5,6,22,23 Notch T adhesive tape

Claims (1)

[Claims] In forming a packaging box, two members of the same shape are assembled and stitched, a boxer wire, or the like is formed in a box to fix a joint between the two members during the process. A packaging box manufactured without using an adhesive.