JP4033706B2 - Opening creased packaging box - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging box that is sealed by attaching a flap and has improved openability.
[0002]
[Prior art]
In general, in order to pack an article, as shown in FIG. 5, the inner flap 3 and the outer flap 4 extending from each pair of end walls 1 and side walls 2 are bonded together with a hot melt adhesive and sealed. A packaging box is used. This packaging box is opened by peeling off the outer flap 4 from the inner flap 3.
[0003]
[Problems to be solved by the invention]
However, in the packaging box, there is a problem that when opening the finger, it is difficult for a finger to enter between the tips of the abutted outer flaps 4 and opening is difficult.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problem, in the present invention, a pair of opposed end walls and a pair of side walls opposed to each other at right angles to each other are connected in a cylindrical shape, and an inner flap is formed from each end wall. An outer flap is extended from each side wall, the inner flap and the outer flap are bent in order, and the outer flap is attached to the front side of the inner flap for sealing, and the pair of outer flaps has a pair of inner flaps on the back side. A V-shaped oblique crease that spreads toward the edges that are abutted with each other is placed in an intermediate part that does not overlap , forming a flexible part that faces the inside, and a diagonal crease is formed at the center of the flexible part A half-fold ruled line was made from the valley to the edge of the outer flap .
[0005]
In this packaging box, when the flexible part of one outer flap is pushed in, a gap is created between the tips of the outer flaps, so a finger is put into the gap and the flexible part of the other outer flap is pulled up to enlarge the gap. Can be opened easily by putting your hand deeply into
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0007]
This packaging box is made of corrugated cardboard. As shown in FIG. 1, a pair of opposing end walls 1 and a pair of side walls 2 opposing each other at right angles to each other are connected in a cylindrical shape, The inner flap 3 extends from the wall 1, the outer flap 4 extends from each side wall 2, the inner flap 3 and the outer flap 4 are sequentially bent, and the outer flap 4 is bonded to the front side of the inner flap 3 and sealed. Yes.
[0008]
The pair of outer flaps 4 is provided with a V-shaped oblique ruled line 5 that spreads toward the edges that are abutted with each other in an intermediate portion where the pair of inner flaps 3 do not overlap on the back side, and faces the inside thereof. A flexible portion 6 is formed. Further, in the center of the flexible portion 6, a middle folded rule 7 is put from the valley of the oblique folded rule 5 to the edge of the outer flap 4.
[0009]
In such a packaging box, when opening, when the flexible part 6 of one outer flap 4 is pushed in, as shown in FIG. 2, the flexible part 6 extends along the oblique folding line 5 and the middle folding line 7. Bending downward, a gap is formed between the tips of the outer flaps 4.
[0010]
Then, when a finger is put into the gap, the flexible portion 6 of the other outer flap 4 is pulled up, and a hand is inserted deeply into the enlarged gap, the outer flap 4 is peeled off from the inner flap 3 and easily opened. be able to.
[0011]
In addition, since the flexible part 6 can be processed with flexogluer in the manufacture of the packaging box, it can be manufactured without changing the conventional process, and the cutting edge is not inserted when the flexible part 6 is processed. There is no decline.
[0012]
When this packaging box is manufactured by punching, as shown in FIG. 3, a crushing portion 8 from the surface side is provided at the front end portion of the flexible portion 6 of one outer flap 4 , and the other side is provided. If the crushing portion 9 from the back surface side is provided at the distal end portion of the flexible portion 6 of the outer flap 4, a step is formed at the distal end abutting portion of the outer flap 4. Even if the crushing portion 9 on the back side is omitted, a similar step can be made.
[0013]
In addition, as shown in FIG. 4, when the flexible portion 6 is formed in an inner and outer multiple, for example, the head of the plastic bottle P that is a stored item hits the outer flexible portion 6, and the outer flexible portion 6 is difficult to bend. Even in this case, since the inner flexible portion 6 bends, the unsealing property can be secured.
[0014]
【The invention's effect】
As described above, in the packaging box according to the present invention, in the portion where the inner flaps do not overlap, the flexible portion that is opposed to the middle portion of the pair of outer flaps with which the end edges are abutted with each other. Since the middle crease is put in the center, the flexible part of one outer flap is pushed in, the finger is put into the gap formed between the tips of the outer flaps, and the flexible part of the other outer flap is It can be easily opened by pulling up and inserting a hand deeply into the enlarged gap and peeling off the outer flap from the inner flap .
[Brief description of the drawings]
FIG. 1 is a perspective view of a packaging box according to an embodiment of the present invention. FIG. 2 is a perspective view showing an opening process of the same. FIG. 3 is a perspective view showing an embodiment in which a crushing part is provided on the flexible part. FIG. 4 is a perspective view showing an embodiment in which multiple flexible portions are formed. FIG. 5 is a perspective view showing a conventional packaging box.
DESCRIPTION OF SYMBOLS 1 End wall 2 Side wall 3 Inner flap 4 Outer flap 5 Diagonal crease 6 Flexible part 7 Middle crease 8, 9 Crush part

Claims (1)

A pair of opposing end walls 1 and a pair of side walls 2 opposing each other at right angles to each other are connected in a cylindrical shape, and the inner flap 3 is connected from each end wall 1 and the outer flap 4 is connected from each side wall 2. , The inner flap 3 and the outer flap 4 are sequentially bent, and the outer flap 4 is bonded to the front side of the inner flap 3 and sealed, and the pair of outer flaps 4 has a pair of inner flaps on the back side. A V-shaped slanted ruled line 5 that spreads toward the edges to be abutted with each other is placed in an intermediate portion where 3 does not overlap , and a flexible portion 6 that faces the inside is formed, and at the center of the flexible portion 6 A packaging box containing an opening assist ruled line, in which a middle folded ruled line 7 is inserted from the valley of the diagonally folded ruled line 5 to the edge of the outer flap 4 .

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