JP2024021175A - Packaging box and package - Google Patents

Abstract

To provide a packaging box that suppresses adhesive peeling and is easy to hold.SOLUTION: A top plate provided with a top plate flap, a bottom plate facing the top plate and provided with a bottom plate flap, and a pair of side plates provided with side flaps are bent along ruled lines, and the top plate and one side plate are joined together for the four plates to form a rectangular tube shape. The top plate flap and the bottom plate flap form outer flaps whose leading ends face each other through the opening. The pair of side flaps forms inner flaps whose leading ends face each other through the opening and are joined to the outer flap. At least one of the pair of side flaps has handle parts protruding into the opening via the fold line at the tip.SELECTED DRAWING: Figure 2

Description

The present invention relates to a packaging box and a packaging body.

2. Description of the Related Art Packaging boxes made of cardboard, for example, are known as packaging boxes for storing and packaging canned products, plastic bottles, and the like for storage and transportation. In this type of packaging box, as disclosed in Patent Document 1, a handle portion is provided on the outer flap on the top surface side.

Patent No. 6180800

In the packaging box of Patent Document 1, the hot melt adhesive that seals the outer flap may peel off. Furthermore, in a package in which an object is packed in a packaging box, a problem arises in that a finger inserted into the packaging box from the handle portion hits the object and becomes difficult to hold.

The present invention has been made in consideration of the above points, and an object of the present invention is to provide a packaging box and a packaged body that can suppress peeling of adhesive and are easy to hold.

The present invention has the following aspects.
[1] A top plate provided with a top plate flap, a bottom plate facing the top plate and provided with a bottom plate flap, and a pair of side plates provided with side flaps are bent along ruled lines, and the top plate and one side plate are bent along ruled lines. are joined to form a rectangular tube shape, the top plate flap and the bottom plate flap form outer flaps whose tips face each other through the opening, and the pair of side flaps have tips facing each other through the opening. forming inner flaps that face each other and are joined to the outer flap through a portion, and at least one of the pair of side flaps has a handle portion protruding into the opening via a fold line at the tip end; packing box.
[2] At least one of the pair of side flaps has two notches that are spaced apart in the length direction of the side flap and are recessed from the tip, and the handle portion is located between the two notches. The packaging box described in [1], which is placed between.
[3] The packaging box according to [2], wherein the notch is formed in an arc shape connecting the tip end and the fold line with a curve.
[4] The packaging box according to [3], wherein the top flap and the bottom flap have a second notch formed in a curved line at a position facing the notch.
[5] A package comprising the packaging box according to any one of [1] to [4] and a plurality of objects packed inside the packaging box.
[6] The package according to [5], wherein the object to be packed has a substantially circular cross section perpendicular to the normal direction of the top plate and the bottom plate.

According to the present invention, it is possible to provide a packaging box and a packaging body that can suppress adhesive peeling and are easy to hold.

FIG. 1 is a perspective view of a packaging box 1 according to an embodiment of the present invention. FIG. 1 is a left side view of a packaging box 1 according to an embodiment of the present invention. 2 is a plan view of a blank sheet before being assembled into a packaging box 1. FIG. 1 is a perspective view of a package 100 according to an embodiment of the present invention, in which a plurality of objects 101 as objects to be packed are packed in a packing box 1. FIG. FIG. 2 is a perspective view of a package 100 according to an embodiment of the present invention with side plates 14 facing upward. 6 is a sectional view taken along line AA in FIG. 5. FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a packaging box and a packaging body of the present invention will be described below with reference to FIGS. 1 to 6.
Note that the following embodiments illustrate one aspect of the present invention, and do not limit the present invention, and can be arbitrarily modified within the scope of the technical idea of the present invention. In addition, in the following drawings, in order to make each structure easier to understand, the scale, number, etc. of each structure are different from the actual structure.

[Packaging box]
FIG. 1 is a perspective view of a packaging box 1 according to an embodiment of the present invention. FIG. 2 is a left side view of the packaging box 1, which is an embodiment of the present invention. This packaging box 1 includes a packaging box body 2 that is a hexahedral box. The packaging box body 2 is a box made of paper such as cardboard.

As shown in FIGS. 1 and 2, the packaging box 1 includes a top plate 11, a pair of side plates 12 and 14, and a bottom plate 13. The width of the top plate 11 and the bottom plate 13 is wider than the width of the pair of side plates 12.
In the following description, the side on which the top plate 11 is arranged is called the upper side, the side on which the bottom plate 13 is arranged is called the lower side, the side on which the side plates 12 are arranged is called the left side, and the side on which the side plates 14 are arranged is called the right side.
The top plate 11 is located on the upper side. The top plate 11 has top plate flaps 15 at both ends in the length direction. The top plate flap 15 is bent downward along the fold line 3A.

The side plate 12 connects the top plate 11 and the bottom plate 13. The side plate 12 is bent downward from the top plate 11 along ruled lines 51. The side plate 12 has side flaps 17 at both ends in the length direction. The side flap 17 is bent to the right along the fold line 3C.

The bottom plate 13 is located on the lower side and faces the top plate 11 in the vertical direction. The bottom plate 13 is bent to the right from the lower end of the side plate 12 along a ruled line 52. The bottom plate 13 has bottom plate flaps 16 at both ends in the length direction. The bottom plate flap 16 is bent upward along the fold line 3B. The bent top plate flap 15 and bottom plate flap 16 have a gap between the tip portions 71. The bent top plate flap 15 and bottom plate flap 16 have their tip portions 71 facing each other through the opening 43. The top plate flap 15 and the bottom plate flap 16 form an outer flap 26.

The side plate 14 connects the top plate 11 and the bottom plate 13. The side plate 14 is bent upward from the bottom plate 13 along ruled lines 53. The side plate 14 has side flaps 18 at both ends in the length direction. The side flap 18 is bent to the left along the fold line 3D. The bent side flaps 17 and 18 have a gap between the tip portions 72. The bent side flaps 17 and 18 have their tip portions 72 facing each other through the opening 43. That is, the opening 43 is surrounded by the top plate flap 15, the bottom plate flap 16, and the tip portions 71 and 72 of the side flaps 17 and 18. By forming the opening 43, the amount of cardboard can be saved, and the environmental load when the cardboard is finally disposed of can be reduced. The pair of side plates 12 and 14 form an inner flap 27. The inner flap 27 is bonded with a hot melt adhesive or the like in the bonding region 6 where the longitudinal end thereof faces the longitudinal end of the outer flap 26 .

A seam 19 is connected to the upper end of the side plate 14. The seam 19 is bent leftward from the side plate 14 along a ruled line 54. The bent seam 19 is joined to the top plate 11 from below using a hot melt adhesive or the like. As a result, the top plate 11, the pair of side plates 12 and 14, and the bottom plate 13 are formed into a rectangular tube shape.

The side plate 12 and the side flaps 17, 17, and the side plate 14 and the side flaps 18, 18 have a top plate 11 and a bottom plate 13 on the side plates 12, 14 in the length direction of the inner surface of the packaging box 1. A cut tape (not shown) is pasted in advance at approximately the center height of. It is preferable that an H-shaped cut line 5, which triggers the opening of the cut tape, is formed at a position on the side plates 12 and 14 that overlaps with the cut tape (see FIG. 3 for the cut line 5 on the side plate 12). .
By forming the H-shaped cut line 5, insert your finger into the packaging box 1 from the cut line 5, hold the end facing the cut line 5 with your finger, and pull it to paste it on the inside of the packaging box 1. The combined cut tape allows the side plate 12 and side flaps 17, 17, and the side plate 14 and side flaps 18, 18 to be successively torn apart. Thereby, the packaging box 1 can be opened by dividing the top plate 11 side and the bottom plate 13 side.

As shown in FIG. 2, one side flap 18 has a notch portion 80 and a handle portion 81. As shown in FIG. Two notches 80 are arranged apart from each other in the length direction of the side flap 18. The notch 80 is formed in an arcuate shape recessed from the tip 72. The handle portion 81 is arranged between the two notches 80. The handle portion 81 projects into the opening portion 43 via a fold line 82 at the tip portion 72 . The folding line 82 is provided at a position recessed from the tip 72 and parallel to the tip 72 . The fold line 82 is a tangent line connecting the arc-shaped notches 80. In other words, the notch 80 connects the tip and the fold line with an arc-shaped curve.

The top plate flap 15 and the bottom plate flap 16 each have a second notch 83. The second notch 83 is formed by an arcuate curve recessed from the tip portions 71 of the top plate flap 15 and the bottom plate flap 16. The second notch 83 is arranged at a position facing the notch 80 and exposes the notch 80.

[Assembling packaging box 1]
FIG. 3 is a plan view of the blank sheet before being assembled into the packaging box 1. As shown in FIG. 3, the blank sheet has a top plate 11, a side plate 12, a bottom plate 13, a side plate 14, and a seam 19 arranged in order from the right, and ruled lines 51, 52, 53, and 54 are arranged between these. It is formed. A top plate flap 15 and a bottom plate flap 16, which constitute an outer flap 26, are provided at both ends in the longitudinal direction of the cardboard paper forming the top plate 11 and the bottom plate 13, respectively. Further, side flaps 17 and 18, which constitute an inner flap 27, are provided at both ends in the longitudinal direction of the plates constituting the side plates 12 and 14, respectively.

The packaging box 1 (blank sheet) in the unfolded state with the above configuration is arranged between the top plate 11 and the side plates 12 and between the side plates 12 and the bottom plate 13 so that the bottom plate 13 side shown in FIG. The space between the side plate 14 and the seam 19 is bent along the respective ruled lines 51, 52, 53, and 54, respectively. Then, the side edge of the open end in the transverse direction of the plate constituting the top plate 11 and the seam 19 are joined with a hot melt adhesive.

Thereafter, the side flaps 17 and 18 are bent inward as inner flaps 27 at fold lines 3C and 3D, respectively, and then the top plate flap 15 and the bottom plate flap 16 are folded inward as outer flaps 26 at fold lines 3A and 3B, respectively.
Then, the inner flap 27 and the outer flap 26 are joined with adhesive or the like in the joining region 6 so that the inner flap 27 is on the inside and the outer flap 26 is on the outside. By assembling the expanded blank sheets shown in FIG. 3 in this manner, the packaging box 1 as shown in FIG. 1 is completed. At this time, the two surfaces formed by joining the inner flap 27 and the outer flap 26 each become a width surface.

The blank sheet is assembled so as to wrap around the plurality of items to be packed 101 (see FIG. 4), and then joined to the side edge of the open end in the transverse direction of the board constituting the top plate 11. 19, and also by joining the inner flap 27 and the outer flap 26. That is, the packaging box 1 is formed in a wrap-around manner.

[Package 100]
FIG. 4 is a perspective view of a package 100 in which a plurality of objects 101 as objects to be packed are packed in a packaging box 1.
As described above, the packaging box 1 has a plurality of objects 101 packed therein in a wrap-around manner. In FIG. 4, as an example, the object to be packed 101 is a canned beverage, and 4×6 objects to be packed 101 are housed in the packaging box 1 vertically and horizontally. The object to be packed 101 has a substantially circular cross section perpendicular to the normal direction of the top plate 11 and the bottom plate 13 .

The object to be packed 101 packed in the package 100 is not limited to this, and can be various products such as foods and drinks. More specifically, the object to be packaged 101 can be, for example, a canned beverage, a plastic bottle (PET bottle) beverage, a paper-packed beverage, a beverage in a container, a food, or the like.

FIG. 5 is a perspective view of the package 100 with the side plate 14 facing upward.
When transporting the package 100 by people, first. As shown in FIG. 5, the package 100 is raised in a direction in which the side plates 14 face upward. FIG. 5 is a perspective view of the package 100 with the side plates 14 facing upward, viewed from the top plate 11 side. Thereby, the handle portion 81 is located above the opening 43.

FIG. 6 is a sectional view taken along line AA in FIG.
As shown in FIG. 6, when transporting the package 100, the finger F is inserted into the packaging box 1 through the opening 43 while bending the handle portion 81 along the fold line 82. Further, since the second notch portions 83 are provided at positions facing the notch portions 80 in the top plate flap 15 and the bottom plate flap 16, for example, the width across from the index finger to the little finger is 71 and the tip 71 of the bottom plate flap 16, the finger F can be smoothly inserted into the packaging box 1.

Then, by bending the finger F inserted into the packaging box 1, the bent handle portion 81 and the side flap 18 overlap. By overlapping the handle portion 81 and the side flap 18, the board thickness increases, and the strength when grasped with fingers can be increased. The package 100 can be transported by grasping and lifting the handle parts 81 and the side flaps 18 at both left and right ends of the packaging box body 2 with the left and right fingers, respectively. At this time, since the handle portion 81 and the side flaps 18 are gripped, compared to the case where the outer flaps 26 made up of the top plate flap 15 and the bottom plate flap 16 are grabbed, even if a force in the direction of opening outward is applied. , the laminated hot melt adhesive is difficult to peel off.

Further, by raising the package 100 in a direction in which the side plates 14 face upward, the object to be packed 101 is laid down sideways. Therefore, inside the package 100, there is more space on the upper side closer to the side plate 14. Furthermore, since the cross section of the object to be packed 101 perpendicular to the normal direction of the top plate 11 and the bottom plate 13 is approximately circular, the space above the center of the object to be packed 101 is larger. Therefore, by creating a continuous space in the handle portion 81, it is possible to suppress the situation where the fingers F hit the object to be packed and make it difficult to hold it, thereby making it easier to hold the object. Furthermore, it becomes easier to move the finger F inserted into the packaging box 1 to a position where the handle portion 81 and the side flap 18 can be easily grasped, and the packaged body 100 can be easily transported.

The handle part 81 is arranged between the two notches 80, and the notch part 80 is formed in an arc shape concave from the tip part 72, so that stress concentration when the handle part 81 is grasped and lifted with fingers is reduced. This makes it possible to make the handle portion 81 and the side flap 18 less likely to be torn.

As explained above, in the packaging box 1 and the packaging body 100 of this embodiment, the handle portion 81 that projects into the opening 43 via the fold line 82 is provided at the tip 72 of the side flap 18 forming the inner flap 27. Therefore, peeling of the adhesive during transportation can be suppressed. Furthermore, in the packaging box 1 and the packaging body 100 of this embodiment, a continuous space is created in the handle portion 81, making it easier to hold.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. The various shapes and combinations of the constituent members shown in the above-mentioned examples are merely examples, and can be variously changed based on design requirements and the like without departing from the gist of the present invention.

For example, in the above embodiment, a configuration in which the notch 80, the handle portion 81, and the folding line 82 are provided on the side flap 18 is illustrated, but the configuration is not limited to this. For example, the cutout portion 80, the handle portion 81, and the fold line 82 may be provided on the side flap 17, or may be provided on both the side flaps 17 and 18.

Further, in the above embodiment, a configuration in which the inner flap 27 and the outer flap 26 are arranged on the width side of the packaging box main body 2 is illustrated, but the present invention is not limited to this configuration.
The inner flap 27 and the outer flap 26 having the handle portion 81 on the length side may be arranged.

1...Packaging box, 11...Top plate, 12, 14...Side plate, 13...Bottom plate, 15...Top plate flap, 16...Bottom plate flap, 17, 18...Side flap, 26...Outer flap, 27...Inner flap, 43... Opening, 51, 52, 53, 54... ruled line, 71, 72... tip, 80... notch, 81... hand grip, 82... folding line, 83... second notch, 100... package, 101... cover Packed items

Claims (6)

A top plate having a top plate flap, a bottom plate facing the top plate and having a bottom plate flap, and a pair of side plates each having a side flap are bent along a ruled line, and the top plate and one of the side plates are joined. It is formed into a rectangular tube shape,
The top plate flap and the bottom plate flap form outer flaps whose tips face each other through an opening,
The pair of side flaps form inner flaps whose distal ends face each other through the opening and are joined to the outer flap,
In the packaging box, at least one of the pair of side flaps has a handle portion protruding into the opening via a fold line at the tip. At least one of the pair of side flaps has two notches arranged apart in the length direction of the side flap and recessed from the tip,
The handle part is arranged between the two notches,
The packaging box according to claim 1. The notch is formed in an arc shape that connects the tip and the fold line with a curve.
The packaging box according to claim 2. The top plate flap and the bottom plate flap have a second notch formed in a curve at a position facing the notch.
The packaging box according to claim 3. A packaging box according to any one of claims 1 to 4,
a plurality of items packed inside the packaging box;
A packaging body with. The object to be packed has a substantially circular cross section perpendicular to the normal direction of the top plate and the bottom plate.
The package according to claim 5.

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