JP3650367B2 - Packaging box with opening function - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging box in which an inner flap and an outer flap are bonded and sealed, to which a function that can be easily opened is added.
[0002]
[Prior art]
Generally, when packaging an article, a cardboard box is used in which an inner flap extending from a side plate and an outer flap extending from an end plate are bonded together with a hot melt adhesive and sealed. When opening the cardboard box, the outer flap is peeled off from the inner flap by putting a hand into the abutting portion and pulling it up.
[0003]
[Problems to be solved by the invention]
However, in the cardboard box as described above, since the adhesive force of the hot melt adhesive is strong, a large force is required for opening, and the flap may be broken at that time. There is also the inconvenience that it cannot be resealed unless an adhesive tape or the like is used.
[0004]
Therefore, an object of the present invention is to provide a packaging box that can be easily opened and resealed.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention forms a peripheral wall from each pair of end plates and side plates, and bonds an inner flap extending from the upper edge of the end plate and an outer flap extending from the upper edge of the side plate. In a packaging box that is bonded and sealed with an agent, insert two cut lines from the leading edge into the inner flap, insert a hinge line connecting the base ends, and push in the inner part of the cut line and the hinge line. Make a U-shaped score line from the edge of the tip of the outer flap, place the inner part of the outer flap as a pressing piece, and place the adhesive application part that bonds the inner flap and outer flap on the overlapping part of the pressing piece. In addition, on both sides of the front end of the pushing piece of the inner flap, there are provided engaging portions that ride on the outer flap as the pushing piece is pulled up.
[0006]
In this packaging box, when the pushing piece is pushed in and the cut line is cut, it can be opened without peeling off the adhesive application part.
[0007]
Further, when the pushing piece is pulled up and the engaging portion is put on the outer flap, it can be resealed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
First, a description will be given of a implementation form of the invention in FIGS. 1-5.
[0009]
In the blank shown in FIG. 1, each pair of end plates 1 and side plates 2 are alternately connected, and a passage 3 is connected to the outer edge of one side plate 2. An inner flap 4 and an outer flap 5 are connected to the lower edges of the end plate 1 and the side plate 2, respectively, and an inner flap 6 and an outer flap 7 are connected to the upper edges of the end plate 1 and the side plate 2, respectively.
[0010]
Two cut lines 14 are perforated from the front edge of the inner flap 6, and the base ends of the cut lines 14 are connected by a hinge line 15. The inner part of the cut line 14 and the hinge line 15 is a pushing piece 16, and engaging portions 17 are provided on both sides of the tip.
[0011]
Further, the outer flap 7 has a perforated line 18 formed in a deformed U-shape from the front end edges of both sides, and an inner portion thereof is a pushing piece 19.
[0012]
To assemble the blank and wrap the article, as shown in FIG. 2 , each pair of end plates 1 and side plates 2 is bent into a square tube shape, and the passage 3 is attached to the opposite end plate 1 to form a peripheral wall. And the inner flap 4 and the outer flap 5 are bonded together with a hot-melt adhesive to close the bottom surface.
[0013]
And after accommodating articles | goods in a box, the inner flap 6 and the outer flap 7 are bonded together by spraying a hot-melt-adhesive on the adhesive application part 13 with which the pressing pieces 16 and 19 overlap.
[0014]
On the other hand, when opening the packaging box, as shown in FIG. 3 , when the pushing pieces 16 and 19 are pushed and the cut lines 14 and 18 are cut, the pushing piece 16 is attached to the upper surface. In this state, it swings downward about the hinge wire 15 as an axis.
[0015]
Thereby, the outer flap 7 and the inner flap 6 can be opened as shown in FIG. 4 without peeling off the adhesive application part 13.
[0016]
After opening, as shown in FIG. 5 , the inner flap 6 and the outer flap 7 are closed, the pushing piece 16 is pulled up, and the engaging portion 17 rides on the outer flap 7, so that it can be resealed. .
[0017]
【The invention's effect】
As described above, the packaging box according to the present invention is formed by superimposing a pressing piece formed by putting a score line and a hinge line on the inner flap and a pressing piece formed by putting a score line on the outer flap. In addition, since the adhesive application part for bonding the inner flap and the outer flap is positioned , the adhesive application part can be opened without being peeled off by pressing the pressing piece.
[0018]
Further, the tip sides of the pushing pieces of the inner flap, is provided with the engaging portion rides on the outer flap with the raising of the push piece, after opening, and an inner flap and outer flap engaged, re sealing Can do.
[Brief description of the drawings]
[1] opening of the perspective view of the opening process of the perspective view FIG. 3 Same as above showing the package state of implementation FIG Figure 2 showing the packaging box blank according to the same as above of the Invention [4] Ibid FIG. 5 is a perspective view showing a state of resealing the same as above.
DESCRIPTION OF SYMBOLS 1 End plate 2 Side plate 6 Inner flap 7 Outer flap 13 Adhesive application part 14, 18 Cut line 16, 19 Pushing piece 17 Engagement part

Claims (1)

A peripheral wall is formed from each pair of end plates 1 and side plates 2, and an inner flap 6 extending from the upper edge of the end plate 1 and an outer flap 7 extending from the upper edge of the side plate 2 are bonded together with an adhesive. In the packaging box to be sealed, two cut lines 14 are inserted into the inner flap 6 from the leading edge, hinge lines 15 are connected between the base ends, and the inner portions of the cut lines 14 and the hinge lines 15 are pushed in. A U-shaped cut line 18 is inserted into the outer flap 7 from the front edge, and the inner portion thereof is also set as a pressing piece 19, and the inner flap 6 and the outer flap 7 are formed in a portion where the pressing pieces 16, 19 overlap. An adhesive application portion 13 for bonding the inner flap 6 is positioned, and an engagement portion 17 that rides on the outer flap 7 as the pushing piece 16 is pulled up is provided on both sides of the leading end of the pushing piece 16 of the inner flap 6. Functional packaging box.

Images