JP3581126B2 - Packaging box - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a packaging box that accommodates and packages, for example, PET bottles.
[0002]
[Prior art]
The conventional packaging box 100 shown in FIGS. 7 and 8 is a rectangular box made of a paper material such as cardboard. End walls 12a and 12b and divided side walls 13a and 13b are sequentially provided at both ends of a side wall 11. Have been. Outer flaps 14a and 14b are provided at the upper and lower ends of the side wall 11, respectively. Inner flaps 15a, b, c, d are provided at the upper and lower ends of the end walls 12a, b, respectively, and outer flaps 16a, b, c, at the upper and lower ends of the divided side walls 13a, b. d are provided respectively.
[0003]
Further, a partition plate 17 is continuously provided at the other end of the divided side wall 13a opposite to the one end where the end wall 12a is continuously provided. Further, a locking piece 18 is continuously provided on the other end of the partition plate 17 opposite to the one end on which the divided side wall 13a is continuously provided.
[0004]
Then, as shown in FIG. 8, the divided side walls 13a and 13b are overlapped and glued to form a peripheral wall. Next, the inner flaps 15b and 15d are bent in the horizontal direction, and the outer flaps 14b and the outer flaps 16b and 16d are formed. Are sequentially bent in the horizontal direction to form a bottom wall. Then, the partition plate 17 is bent inward toward the side wall 11, and the locking piece 18 is bent along the inner surface of the side wall 11 and glued to the side wall 11 to fix the partition plate 17.
[0005]
A plastic bottle or the like is stored in the packaging box 1 assembled in this manner, the inner flaps 15a and 15c are bent horizontally, and then the outer flaps 14a and the outer flaps 16a and 16c are sequentially bent horizontally to form a ceiling wall. Then, the packaging box 1 is closed.
[0006]
[Problems to be solved by the invention]
However, in the case of the packaging box, when the divided side walls 13a and 13b are misaligned when the peripheral wall is formed, as shown in FIG. 4, the leading end of the partition plate 17 is moved to the side wall 11 at a position shifted upward, for example. May be fixed. At this time, if the outer flap 14a is bent in the horizontal direction to form the top wall, the outer flap 14a comes into contact with the tip of the partition plate 17, so that the packaging box 1 cannot be closed.
[0007]
Therefore, an object of the present invention is to provide a packaging box that can be closed even when the partition plate is displaced due to joining displacement.
[0008]
[Means for Solving the Problems]
According to the present invention, as means for solving the above problems, an end wall and a divided side wall are sequentially provided at both ends of a side wall made of paper material, and the end wall of one of the divided side walls is continuously provided. A partition plate is continuously provided at the other end opposite to the one end, and a locking piece is continuously provided at the other end of the partition plate opposite to the one end where the divided side wall is provided continuously, and In a packaging box formed by overlapping and gluing the divided side walls to form a peripheral wall, bending the partition plate inward toward the side walls and bending the locking pieces along the inner surface of the side walls, The partition plate is provided with a low-rigidity portion having reduced rigidity of the paper material along a fold line with the divided side wall, and the width of the low-rigidity portion is set in a range of 10 mm to 20 mm .
[0009]
In the above invention, since the partition plate is provided with a low-rigidity portion in which the rigidity of the paper material is reduced along the fold line with the division side wall, the division side walls are joined at a position where the partition plate tip is shifted upward or downward. Also, by folding the outer flap provided at the upper end or lower end of the side wall in the horizontal direction, the tip of the partition plate can be pushed into the inside of the packaging box, and the packaging box can be closed.
[0011]
It is preferable that the tip of the locking piece abuts on the inside of the fold line between the side wall and the end wall when assembling the packaging box. Thus, the partition plate can be supported at a predetermined position with respect to the side wall.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0013]
1 and 2 show a packaging box 1 according to the present invention, which is different from the conventional packaging box 100 shown in FIGS. 7 and 8 in that the base end of the partition plate 17 and the locking piece 18 are provided on the inner surface of the side wall 11. Except for the absence of gluing, they are substantially the same, and corresponding parts are denoted by the same reference numerals and description thereof is omitted.
[0014]
The partition plate 17 is provided with a wide push portion 3 (low rigidity portion) along the fold line 2 with the divided side wall 13a and having a curved portion 3a. As shown in FIG. 3A, the wide pressing portion 3 presses the plate-shaped cork 21 provided on the lower surface of the wooden upper mold 20 against the paper material 1a at the time of manufacturing the packaging box 1, and FIG. As shown in (1), the paper material 1a is formed by being crushed. The plate-shaped cork 21 is provided along a projection 22 forming the fold line 2. The width w of the plate-like cork 21 is preferably in the range of 10 mm to 20 mm.
[0015]
Then, as shown in FIG. 2, a peripheral wall is formed by overlapping and gluing the divided side walls 13a and 13b, and then the inner flaps 15b and 15d are bent in the horizontal direction, and the outer flaps 14b and the outer flaps 16b and 16d are formed. Are sequentially bent in the horizontal direction to form a bottom wall. Then, the partition plate 17 is bent inward toward the side wall 11 and the locking piece 18 is bent along the inner surface of the side wall 11. The outer flaps 16b and 16d and the outer flaps 16a and 16c are integrally bonded when the divided side walls 13a and 13b are overlapped and glued.
[0016]
When storing a PET bottle or the like in the packaging box 1 assembled in this manner, the PET bottle is stored on one side of the packaging box 1 partitioned by the partition plate 17 so that the partition plate 17 is perpendicular to the side wall 11. Hold the PET bottle on the other side while holding it by hand. At this time, since the partition plate 17 is not glued to the side wall 11 unlike the partition plate of the conventional packaging box, it becomes easy to insert the PET bottle into the packaging box 1 when storing the PET bottle in the packaging box 1. Then, the inner flaps 15a and 15c are bent in the horizontal direction, and then the outer flap 14a and the outer flaps 16a and 16c are sequentially bent in the horizontal direction to form a ceiling wall. At this time, since the partition plate 17 is located at the center of the top wall and the bottom wall, the strength of the packaging box 1 is improved. For example, even when the packaging boxes 1 are stacked, the boxes are not broken.
[0017]
Next, the operation of the packaging box 1 having the above configuration will be described.
[0018]
When forming the peripheral wall of the packaging box 1, if the divided side walls 13a and 13b are glued in a shifted state, the tip end of the partition plate 17 may be located at a position shifted upward as shown in FIG. is there. At this time, since the wide push portion 3 is formed at the base end of the partition plate 17 to reduce the rigidity, when the outer flap 14a is bent in the horizontal direction to form the ceiling wall, 2 in FIG. As shown by the dotted line, the partition plate 17 can be pushed downward. Further, when the leading end portion of the partition plate 17 is located at a position shifted downward, when forming the bottom wall of the packaging box 1, the outer flap 14 b is bent in the horizontal direction so that the partition plate 17 is placed inside the packaging box 1. Can be pushed into.
[0019]
As a modified example of the above embodiment, instead of the locking piece 18, as shown in FIG. 5, when the packaging box 1 is assembled, the leading end abuts on the fold line 4 between the side wall 11 and the end wall 12 a. A piece 18 'may be provided. Thereby, the partition plate 17 can be supported at a predetermined position which is always perpendicular to the side wall 11.
[0021]
Further, as still another modified example of the above-described embodiment, instead of crushing the paper material 1 a with the plate-shaped cork 21 to provide the wide pressing portion 3, the paper material 1 a is provided along the projection 22 forming the fold line 2. By pressing a plurality of sewing blades or the like against the paper material 1a, a part of the paper material 1a may be broken to form a low rigidity portion.
[0022]
Further, as still another modification of the above-described embodiment, as shown in FIG. A separating band 5 for unpacking the packaging box 1 may be adhered to the back liner of the partition plate 17. The separating band 5 breaks corrugated paper in the horizontal direction, and is adhered to one side. A tape made of PP coated with an agent is preferable, and a cut 6 for separating the separation band 5 is provided at a center portion of the side wall 11. Further, a lower end of the partition plate 17 is provided at a lower end. A notch 7 is provided to prevent the user's fingertip from hitting the tip of the partition plate 17 when the user separates the separation band 5 through the separation cut 6. The user separates the upper part of the packaging box 1 from the lower part and It is possible to exhibit contained goods such as housing and pet bottle.
[0023]
【The invention's effect】
As is apparent from the above description, according to the present invention, an end wall and a divided side wall are sequentially provided at both ends of a side wall made of a paper material, and one end where the end wall of one of the divided side walls is continuously provided. A partition plate is continuously provided at the other end opposite to the above, a locking piece is continuously provided at the other end opposite to the one end where the divided side wall of the partition plate is continuously provided, and the divided side wall is provided. Are laminated and glued together to form a peripheral wall, the partition plate is bent inward toward the side wall, and the locking pieces are bent along the inner surface of the side wall. Since the rigidity of the paper material is reduced along the line of sight, if the tip of the partition plate is shifted, the tip of the partition plate can be pushed into the inside of the packaging box, so that the packaging box cannot be closed. . Thereby, the yield of the packaging box can be reduced.
[0024]
In particular, the partition plate can be supported at a predetermined position with respect to the side wall by abutting the tip of the locking piece on the inside of the fold line between the side wall and the end wall when assembling the packaging box.
[Brief description of the drawings]
FIG. 1 is a development view of a packaging box according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a state where the packaging box of FIG. 1 is assembled.
FIG. 3 is a cross-sectional view showing a state in which a wide push portion of FIG. 1 is formed.
FIG. 4 is a partially enlarged perspective view showing a case where a partition plate is located at a shifted position in FIG. 2;
FIG. 5 is a perspective view showing a modification of the packaging box of FIG. 1;
FIG. 6 is a development view showing a modification of the packaging box of FIG. 1;
FIG. 7 is a development view showing a conventional packaging box.
FIG. 8 is a perspective view showing a state where the packaging box of FIG. 7 is assembled.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Packaging box, 2 ... Fold line, 3 ... Wide push part (low rigid part), 11 ... Side wall,
12a, b: end wall, 13a, b: divided side wall, 17: partition plate, 18: locking piece.

Claims (2)

An end wall and a divided side wall are sequentially provided at both ends of a side wall made of a paper material, and a partition plate is provided at the other end of one of the divided side walls opposite to the one end where the end wall is provided continuously. A locking piece is continuously provided at the other end of the partition plate opposite to the one at which the divided side wall is continuously provided, and the peripheral wall is formed by overlapping and gluing the divided side walls. In the packaging box formed, the partition plate is bent inward toward the side wall and the locking piece is bent along the inner surface of the side wall,
A packaging, wherein the partition plate is provided with a low-rigidity portion having a reduced rigidity of the paper material along a fold line with the divided side wall, and a width of the low-rigidity portion is in a range of 10 mm to 20 mm. box. 2. The packaging box according to claim 1 , wherein a tip of the locking piece contacts an inside of a fold line between the side wall and the end wall when assembling the packaging box. 3.

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