JP4004273B2 - Packaging box - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging box used for packaging products such as canned beverages.
[0002]
[Prior art]
For example, in packaging of canned beer, as shown in FIG. 8, a corrugated cardboard wrap round type in which cans C are rolled up by a pair of elevation plates 1 and flat plates 2, and flaps 3 and 4 are closed and sealed. A packaging box is used. This packaging box is shipped from a beer maker in a state of being stacked on a pallet.
[0003]
[Problems to be solved by the invention]
However, when the packaging boxes as described above are stacked, in the packaging box in the vicinity of the lowermost stage where a large load acts, the flange of the can C bites into the sheet, and play occurs in the vertical plate 1. Irregular buckling lines 5 appear on the surface, which may impair the aesthetic appearance.
[0004]
Therefore, the present invention intends to provide a packaging box in which the aesthetic appearance is not impaired even when the standing plate buckles due to the applied load.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a flap in which a pair of elevation plates and a plane plate are connected to each other, a plurality of products arranged vertically and horizontally are wound, and the both ends of each of the elevation plates and the plane plate are connected to each other. In a wrap round type corrugated cardboard packaging box that is bonded and sealed , a pair of elevation plates, a portion extending obliquely from the corner toward the center, and a portion extending horizontally in the middle thereof A buckling guide line having a gap is formed by a ruled line, and an opening cut-off portion is provided between the horizontal portions of the upper and lower buckling guide lines apart from these buckling guide lines .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0007]
In the corrugated blank of the wrap round packaging box shown in FIG. 1 as a reference example , each pair of elevation plates 1 and plane plates 2 are alternately arranged, and flaps 3 are provided at both end edges of each elevation plate 1. The flaps 4 are connected to both end edges of the two. Of these, the passage 6 is connected to the outer edge of one of the elevation plates 1.
[0008]
Moreover, the cut tape 7 is stuck on the back surface side to each elevation board 1 over the flap 3, and the cut start part 8 is formed in the center part. And the buckling induction line 9 which diagonally extends toward the center side from the four corners of each elevation board 1 is formed by the ruled line.
[0009]
Further, on both sides of the flaps 3 and 4, buckling guide lines 10 extending obliquely inward toward the tip are formed by stamped lines.
[0010]
In order to wrap canned beer with such a blank, as shown in FIG. 2, the can C is rolled up by each pair of the elevation plate 1 and the plane plate 2, and the passage 6 is attached to the opposite plane plate 2. Then, the flaps 3 and 4 are bonded and sealed.
[0011]
When the packaging boxes containing canned beer are stacked on the pallet in this way, in the packaging box in the vicinity of the lowermost stage, the upright plate 1 may buckle due to the build-up load and bulge outward as shown in FIG. is there.
[0012]
However, at this time, the elevation plate 1 bends in the shape assumed in advance along the buckling induction line 9 and the flaps 3 and 4 also bend along the buckling induction line 10. Never appear.
[0013]
This packaging box has a shaded appearance like a polyhedron and is excellent in design.
[0014]
The buckling guide lines 9 and 10 are preferably formed by pressing with a square blade having a width of about 3 mm, for example, wider than a normal ruled line having a width of about 1 mm. Further, the steps on both sides of the ruled line may be crushed by cork for about 10 mm.
[0015]
Moreover, in order not to affect the cutting | disconnection by the cut tape 7, the buckling guide wire 9 assumes that the corner part and the center part have interrupted in the reference example shown in FIG .
[0016]
And in the packaging box which concerns on this invention, it replaces with a pair of elevation board 1 shown in FIG. 1, and as shown in FIG. 5, in the elevation board 1, the part extended diagonally toward the center side from four corners, and this Subsequently, a buckling guide line 9 having a portion extending in the horizontal direction in the middle thereof is formed by stamping, and separated from these buckling guide lines 9 between the horizontal portions of the upper and lower buckling guide lines 9, The opening start portion 8 for opening is provided so that the upright plate 1 bends along a buckling guide line 9 that is away from the start portion 8 when the load is applied.
[0017]
Further, as shown in FIG. 6, when two buckling guide wires 9 extending over both corners are connected on both sides of the cut-out portion 8 so as to surround the cut-out portion 8, The bending does not reach and deformation of this part can be prevented.
[0018]
Incidentally, reference example shown in FIG. 7, in place of the cut tape 7, to form a seat屈誘conductor 9 by cut zipper type, and induction of the seat屈誘conductor 9 is buckling, cutting means for opening It is intended to be used in combination .
[0019]
【The invention's effect】
As described above, in the wrap round type corrugated cardboard packaging box according to the present invention , the vertical plate is formed with a buckling guide line extending obliquely from the corner to the center side and extending in the horizontal direction in the middle. Since the opening part for opening is provided between the horizontal parts of the bending induction line, even if the elevation plate buckles due to the build-up load, it bends to the shape assumed in advance along the buckling induction line and the aesthetics are impaired. it is rather name prevents deformation of SetsuHajime portion.
[Brief description of the drawings]
FIG. 1 is a diagram showing a blank of a wrap round packaging box (reference example)
FIG. 2 is a perspective view showing the packaging state of the above (reference example)
[Fig. 3] Partial longitudinal sectional side view of the buckled state (reference example)
FIG. 4 is a view showing another embodiment of the buckling guide line (reference example).
[5] Figure 6 illustrates an embodiment of a seat屈誘wire according to the present invention another example of Figure 7 the seat屈誘lead showing another embodiment of the seat屈誘wire according to the present invention Figure showing the form (reference example)
FIG. 8 is a perspective view showing a buckling state of a conventional wrap round packaging box.
DESCRIPTION OF SYMBOLS 1 Elevation board 2 Plane board 3, 4 Flap 6 Passage 7 Cut tape 8 Cutting start part 9, 10 Buckling induction line

Claims (1)

Wrapped round corrugated cardboard in which a plurality of products arranged vertically and horizontally are wound in series by connecting each pair of vertical plates and flat plates, and sealing is performed by attaching flaps connected to both ends of each vertical plate and flat plate. In a packaging box , a buckling guide line having a portion extending obliquely from the corner toward the center side and a portion extending horizontally in the middle is formed on the pair of elevation plates by ruled lines. A packaging box characterized in that an opening for cutting is provided between the horizontal portions of the upper and lower buckling guide lines apart from the buckling guide lines .

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