JPH11268723A - Packaging case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging case in a double-end-wall structure that is easily disintegrated. SOLUTION: For a packaging case formed of a bottom wall 1, a pair of side walls 17 and a pair of end walls 18 wherein each of the end walls 18 is constructed of an outer end plate 5 and an inner end plate 7 that are connected successively to the bottom wall 1 and the state of standing is maintained for the side walls 17 and the end walls 18 with interposable pieces extending respectively from the side walls 17 interposed respectively between the outer end plate 5 and the inner end plate 7, a thrust-in piece 13 is provided at each of the outer end plates 5 and a crease 14 is formed at the upper edge of the thrust-in piece 13 while the periphery excluding the upper edge is formed in an incised line 15 having a linkage part 16 at its middle. On disintegrating the case, the linkage part 16 of the incised line 15 is severed with the thrust-in piece 13 thrust in, and with the thrust-in piece 13 pushed further toward the inside with the crease 14 working as a hinge, the inner end plate 7 is popped up and engagement between the side wall 17 and the end wall 18 is disengaged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box having a double structure end wall and used as a gift box or a tray.

[0002]

2. Description of the Related Art Generally, a packaging box as shown in FIG. 9 is used. The packaging box comprises a bottom wall 50, a pair of side walls 5 each.
1 and an end wall 52, and the end wall 52 is composed of an outer end plate 53, a top plate 54, and an inner end plate 55 which are sequentially connected to the bottom wall 50, between the outer end plate 53 and the inner end plate 55. The upright state of the side wall 51 and the end wall 52 is maintained with the holding piece 56 extending from the side wall 51 therebetween, and the engaging piece 57 protruding laterally from the inner end plate 55 is engaged with the notch 58 of the side wall 51. Let the inner end plate 5
5 is prevented from returning by rebound.

[0003]

By the way, in order to disassemble and reduce the bulk of the above-mentioned packaging box at the time of disposal, the inner end plate 55 is flipped up to release the engagement between the side wall 51 and the end wall 52. Must.

[0004] However, it is difficult to release the engagement by putting a finger on the lower edge of the inner end plate 55.

Accordingly, an object of the present invention is to provide a packaging box having a double end wall which can be easily disassembled.

[0006]

In order to solve the above-mentioned problems, the present invention comprises a bottom wall, a pair of side walls and an end wall, and the end wall is connected to an outer end plate successively connected to the bottom wall. In a packaging box constituted by an inner end plate and holding an upright state of the side wall and the end wall with a holding piece extending from the side wall between the outer end plate and the inner end plate, the outer end plate Further, a push piece that can be pushed with a part of the periphery as a hinge is provided.

In this packaging box, when the pushing piece is pushed inward during disassembly, the inner end plate is flipped up, and the engagement between the side wall and the end wall is released.

[0008]

FIG. 1 shows a blank according to a first embodiment of the present invention. In this blank, an outer plate 2, a top plate 3 and an inner plate 4 are provided on both side edges of a bottom wall 1, and an outer end plate 5, a top plate 6 and an inner end plate 7 are sequentially provided on both end edges. Nipping pieces 8 and 9 are respectively connected to both side edges of the inner plate 4. Engaging pieces 10 are provided at both ends of the inner end plate 7.
However, notch portions 11 are provided on both sides of the front end edge of the inner plate 4, and a concave portion 12 is formed at the center of the front end edge of the inner end plate 7. A push piece 13 is provided on the outer end plate 5, and the upper edge of the push piece 13 is a fold line 14, and the other peripheral edge is a cut line 15. A plurality of connecting portions 1 are provided at the score line 15.
6 are provided.

The blank is assembled into a packaging box shown in FIG. 4 through the steps shown in FIGS. In the process, the outer plate 2 is raised with respect to the bottom wall 1 and the top plate 3
Is bent in the horizontal direction, and the side wall 17 is formed by bending the inner plate 3 downward. Then, the holding pieces 8 and 9 are bent inward, the outer end plate 5 is erected, the top plate 6 is bent in the horizontal direction, and the inner end plate 7 is bent downward to form the end wall 18. At this time, the holding pieces 8 and 9 are sandwiched between the outer end plate 5 and the inner end plate 7 and
7. The upright state of the end wall 18 is maintained, and the engaging piece 10 is engaged with the notch 11 to prevent the inner end plate 7 from returning due to rebound.

When disassembling the packaging box thus assembled at the time of disposal, a palm is placed on the top plate 6 and the pushing piece 13 is pressed with a fingertip as shown in FIG. In addition, if the pushing piece 13 is arranged at a position considering the positional relationship between the palm and the finger,
When pressing the pushing piece 13, the position does not have to be visually confirmed. Then, with the pressing of the pushing piece 13, the score line 15 is formed.
6, and further, as shown in FIG. 6, when the pushing piece 13 is pushed inward with the fold line 14 as a hinge, the inner end plate 7 is flipped up, and the side wall 17 and the end wall 18 are connected to each other. The engagement can be easily released, and the flat blank state can be restored. Instead of pressing the pushing piece 13, the lower end of the inner end plate 7 may be pulled up by putting a finger on the concave portion 12.

Further, in the above-mentioned packaging box, unless the pushing pieces 13 are pushed in, the cut lines 15 are connected by the connecting portions 16, and the outer end plate 5 cannot be depressed, so that the strength is not reduced and the appearance is poor. It won't be. Further, there is no problem at the time of application to a packaging machine, and no increase in cost is caused.

In addition, since the pushing piece 13 is connected to the outer end plate 5 at the fold line 14 even after pushing,
No chips are generated.

FIGS. 7 and 8 show a second embodiment of the present invention. In this packaging box, the holding pieces 8 extend from both side edges of the outer end plate 5 and are sandwiched between the outer plate 2 and the inner end plate 7 to form the side wall 1.
The upright state of 7 and end wall 18 is maintained. Nipping piece 8
Is formed in an arc shape so as to avoid interference with the top plate 3 during assembly and disassembly. Also, the engagement piece 10 and the notch 11 are omitted, and the inner end plate 7 has a tapered shape that becomes wider toward the distal end, and both side edges are pressed against the inner plate 4 to prevent the inner end plate 7 from returning. doing. Other parts are the first
It is the same as that of the embodiment, and has the same function.

In each of the above embodiments, the side wall 17 has a double structure. However, the side wall 17 may have a single structure by omitting the inner plate 4.

[0015]

As described above, the packaging box according to the present invention is disassembled because the outer end plate which forms the end wall together with the inner end plate is provided with a pushing piece which can be pushed in with a part of the periphery as a hinge. At this time, by pushing the pushing piece inward and flipping up the inner end plate, the engagement between the side wall and the end wall is released, and the flattening can be easily performed.

[Brief description of the drawings]

FIG. 1 is a view showing a blank of a first embodiment of a packaging box according to the present invention.

FIG. 2 is a perspective view showing an assembling process of the same.

FIG. 3 is a perspective view showing an assembling process of the same.

FIG. 4 is a perspective view showing an assembled state of the above.

FIG. 5 is an end longitudinal sectional view showing a disassembling process of the above.

FIG. 6 is an end longitudinal sectional view showing a disassembling process of the above.

FIG. 7 is a view showing a blank of a second embodiment of the packaging box according to the present invention;

FIG. 8 is a perspective view showing an assembling process of the same.

FIG. 9 is a perspective view showing a conventional packaging box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom wall 2 Outer board 3, 6 Top board 4 Inner board 5 Outer end board 7 Inner end board 8, 9 Nipping piece 13 Push piece 14 Fold line 15 Cut line 16 Connecting part 17 Side wall 18 End wall

Claims (1)

[Claims] A bottom wall, a pair of side walls and an end wall,
This end wall is composed of an outer end plate and an inner end plate sequentially connected to the bottom wall, and a side wall and an end wall sandwiching a holding piece extending from the side wall between the outer end plate and the inner end plate. A packing box in which the upright state is maintained, wherein the outer end plate is provided with a pushing piece that can be pushed in with a part of the periphery as a hinge.