JP5918473B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box, and in particular, an outer flap that constitutes a bottom plate is connected to a lower end of a pair of side plates facing each other among side plates that are connected in a lateral direction so that the outer flap can be bent. The inner flap is connected to the lower end of another pair of side plates arranged perpendicular to the side plate so that it can be folded. The inner flap is folded inward and the outer flap is folded so as to overlap with the inner flap. It is related with the packaging box which closed the bottom opening.

  Packaging boxes in which cardboards are assembled in a rectangular parallelepiped shape are widely used for packing and transporting various articles. For example, JIS (Japanese Industrial Standards) Z1507 describes various forms of corrugated packaging boxes. Of these packaging boxes, the packaging box with code number 0201 can be assembled by folding a plate-like body in which four side plates are connected so that they can be folded in the lateral direction. The upper and lower ends of the pair of side plates facing each other are connected to the outer flaps constituting the lid plate and the bottom plate so as to be foldable, and the other side plates of the four side plates facing each other are opposed to each other. Inner flaps are connected to the upper and lower ends so as to be bendable. Here, the inner flap on the lower end side is folded inward, and the outer flap on the lower end side is folded so as to overlap with the inner flap, and the bottom opening is closed. After the contents are stored, the upper opening is closed by folding the inner flap on the upper end side inward and folding the outer flap on the upper end side so as to overlap with the inner flap.

  Such a packaging box made of corrugated cardboard having the code number 0201 has a kraft tape attached to the upper surface and the lower surface or sealed with an adhesive. Here, although there are various ideas about the opening method on the lid plate side, no effective proposal has been made for a method for disassembling such a packaging box after using it.

  When disassembling a packaging box made of cord 0201 type corrugated cardboard that uses hot melt or cold glue adhesive as a sealing method, put your fingers in the gap between the butted parts of the outer flaps that make up the bottom plate on the bottom side. I put it and peel off the adhesion part. In order to provide a gap, processing such as cutting for inserting a finger may be performed, but it is difficult to provide a cutting guide part that forms a large cutting or cutting because there is a risk that the contents may fall off. is there. In particular, there is no problem with the opening on the cover plate side, but there are restrictions when using such a disassembly method on the bottom plate side where the weight of the contents is added. Further, since the action of peeling the glued portions of the outer flap and the inner flap constituting the bottom plate is not changed, a large force is required for peeling when using an adhesive having a strong adhesive force.

JP 2004-262549 A JP 2010-159070 A

  An object of the present invention is to provide a packaging box that can be easily disassembled after use.

  Another object of the present invention is to provide a packaging box in which the packaging box is folded flat when disassembled after use.

  Another object of the present invention is to provide a packaging box that can be disassembled after use by removing the bottom plate.

  Still another object of the present invention is to provide a packaging box that can be used to separate a bottom plate from a side plate and disassemble after use by placing a hand in a predetermined part on the bottom plate side.

  The above and other problems of the present invention will be made clear by the embodiments of the present invention described below.

The main invention of the present application is to fold and assemble a plate-like body in which side plates are foldable in a lateral direction, and to fold an outer flap that constitutes a bottom plate at the lower ends of a pair of side plates facing each other in the side plates. A plurality of inner flaps are connected to the lower end of a side plate other than the side plate provided continuously with the outer flap, and the inner flaps are bent inward. It is a box that closes the bottom opening by folding the outer flap so as to overlap,
A breaking line for dismantling is formed at a bending position between the lower end of the corresponding side plate of the outer flap and the inner flap,
A notch is formed in the outer flap constituting the bottom plate, and both ends of the inner flap overlapping with the notch of the plurality of inner flaps intersect with a fold line between the inner flap and the side plate. When an opening forming break line is formed and at least a part of a region surrounded by the folding line between the inner flap and the side plate and the opening forming break line abuts the outer flap, the cut is made. Exposed in the opening of the outer flap formed by the notch ,
An inner region of the opening forming break line exposed in the opening of the outer flap is pushed into the opening to break the opening forming break line to form an opening in the inner flap, and the disassembly is performed through the opening. removal of the outer flap and the inner flap by use broken lines the bottom plate is removed, the side plates being connected laterally relates packaging box Ru folded flat.

Here, the opening forming break line may be positioned outside the opening of the outer flap formed by the notch. Further, an outer portion of a region surrounded by a fold line between the inner flap and the side plate and the opening forming break line may be glued to the inner surface of the outer flap. Here, the gluing includes joining with an adhesive such as hot melt. Moreover, you may make it a part of said breaking line for opening formation cross the opening of the said outer flap formed of the said notch. Further, the inner flap is a region surrounded by the fold line between the side plate and the opening forming break line, and the portion on the opposite side to the fold line between the side plate and the outer flap. It may be polymerized. Moreover, it is the area | region enclosed by the fold line between the said side plates of the said inner flap, and the said breaking line for opening formation, and the part of both sides may overlap with the said outer flap.

  Further, the side plate of the packaging box has a pair of long side plates facing each other, a pair of short side plates facing each other, and a dimension in a lateral direction relative to the long side plates and the short side plates. A corner side plate disposed between the long side plate and the short side plate obliquely with respect to the long side plate and the short side plate, and the pair of long side plates The outer flap constituting the bottom plate is continuously provided at the lower end of the inner plate, and the inner flap having the opening forming break line formed at the lower end of one of the pair of short side plates. May be provided. Further, the side plate of the packaging box is composed of six side plates having the same lateral dimension, and the outer flaps constituting the bottom plate are continuously provided at the lower ends of the pair of side plates facing each other. The inner flap in which the opening forming break line is formed may be continuously provided at a lower end of the side plate.

The main invention of the present application is to fold and assemble a plate-like body in which side plates are foldable in a lateral direction, and to fold an outer flap that constitutes a bottom plate at the lower ends of a pair of side plates facing each other in the side plates. A plurality of inner flaps are connected to the lower end of a side plate other than the side plate provided continuously with the outer flap, and the inner flaps are bent inward. It is a box that closes the bottom opening by folding the outer flap so as to overlap,
A breaking line for dismantling is formed at a bending position between the lower end of the corresponding side plate of the outer flap and the inner flap,
A notch is formed in the outer flap constituting the bottom plate, and both ends of the inner flap overlapping with the notch in the plurality of inner flaps are both ends of a folding line between the inner flap and the side plate. When an opening forming break line intersecting with the side plate of the inner flap is formed, and at least a part of a region surrounded by the opening forming break line and the opening forming break line abuts the outer flap. The present invention relates to a packaging box exposed in the opening of the outer flap formed by the notch.

  Therefore, according to such a packaging box, the region surrounded by the folding line between the side plate of the inner flap exposed in the opening formed by the notch of the outer flap constituting the bottom plate and the opening forming break line. By pushing at least a part of the inner flap, the inner flap is broken along the opening-forming break line. Therefore, when a hand is put inside the outer flap through this broken part and the outer flap is pulled outward, the disassembly formed at the folding position between the upper end or the lower end of the corresponding side plate of the outer flap and the inner flap. The outer flap and the inner flap are broken by the breaking line for use, and the outer flap and the inner flap are separated from the side plate together. Accordingly, this causes the packaging box to be disassembled with the bottom plate that closes the bottom opening separated from the side plate. In particular, the side plates connected in the lateral direction are folded flat as if they were squashed, so they become flat when dismantled, making their disposal and disposal easier and storage possible. No more space is required.

It is a development top view of the corrugated cardboard for assembling a packaging box. It is an assembly perspective view of the packaging box. It is a perspective view of the state which turned the assembled packaging box upside down. It is a bottom view of the packaging box. It is a perspective view of the state which fractured the portion of the breaking line for opening formation of an inner flap. It is a perspective view which shows the state which fractures | ruptures the baseplate which consists of an outer flap along an inner flap along the breaking line for breaking, after breaking the breaking line for opening formation. It is an external appearance perspective view of the disassembled packaging box. It is a bottom view similar to FIG. 4 of the packaging box of a modification. It is the bottom view similar to FIG. 4 of another modification. It is an expansion | deployment top view of the cardboard for assembling the packaging box of another embodiment. It is an external appearance perspective view of the state which turned upside down the assembled packaging box. It is a bottom view of the packaging box. It is an expansion | deployment top view of the cardboard for assembling the packaging box of another embodiment. It is an external appearance perspective view of the state which turned upside down the assembled packaging box. It is a bottom view of the packaging box.

  The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a developed plan view of a corrugated cardboard punched for assembling the packaging box according to the present embodiment. The corrugated cardboard 10 includes a long side plate 11, a short side plate 12, a long side plate 11 along the horizontal direction. A side-side side plate 13 and a short-side side plate 14 are provided, and these side plates 11 to 14 are connected via a folding line 15 so as to be foldable. Further, a joining piece 17 is connected to the left end of the long side plate 11 at the left end via a fold line 16.

  Next, a lid plate 22 is connected to the upper ends of the long side plates 11 and 13 via a fold line 21. The projecting lengths of these cover plates 22 are half the width of the short side plates 12 and 14 and are brought into contact with each other when closed. Further, an inner flap 24 is connected to the upper ends of the short side plates 12 and 14 via a fold line 23 so as to be foldable.

  A bottom plate 26 is connected to the lower ends of the long side plates 11 and 13 so as to be foldable via a fold line 25 that also serves as a break line. The protruding lengths of these bottom plates 26 are half of the width of the short side plates 12 and 14, and their tips are abutted when the bottom plates 26 are closed to each other. Inner flaps 29 and 30 are connected to the lower ends of the short side plates 12 and 14 so as to be foldable via a fold line 28 that also serves as a break line.

  Further, this cardboard 10 has a notch 32 formed in a shoulder portion on one side of the bottom plate 26 on the lower end side. Further, an opening forming break line 33 is formed in a substantially U-shaped manner in the inner flap 29 provided continuously below the short side plate 12. Both ends of the opening forming break line 33 coincide with the fold line 28 also serving as the break line. The lower inner flaps 29 and 30 are each formed with four pieces of glue 35 made of hot melt or cold glue. When the bottom portion is closed, these glues 35 cause the inner flaps 29 and 30 and the bottom plate 26 and Are glued together.

  FIG. 2 shows a packaging box assembled by folding the cardboard 10 shown in FIG. When assembling the packaging box with the cardboard 10, the four side plates 11, 12, 13, and 14 are folded into a rectangular tube shape along the folding line 15. Then, the joining piece 17 on the distal end side of the bending line 16 is joined to the end portion of the opposite short side plate 14 and glued. After that, the inner flaps 29 and 30 coated with the glue 35 over the four strips at predetermined positions on the outer surface are folded inward, and the bottom plate 26 is further folded outside thereof, so that the inner surface and the inner flap of the bottom plate 26 are folded. The outer surfaces of 29 and 30 are bonded to each other. Thereby, the bottom opening is closed by the bottom plate 26 and the inner flaps 29, 30 as shown in FIG.

  As shown in FIGS. 3 and 4, when such a packaging box is turned upside down, the notches 32 formed on one shoulder portion of the bottom plate 26 are aligned with each other. As a result, a substantially U-shaped breaking opening 36 is formed. Such a breaking opening 36 is closed by a bottom plate 26 and an overlapping inner flap 29. Here, an opening forming break line 33 is formed on the inner flap 29 so as to extend along the outer side slightly from the outer edge of the break opening 36. When the opening forming breaking line 33 is not broken, the breaking opening 36 is closed by the inner flap 29.

  When disassembling after using this packaging box, as shown in FIG. 5, the inner flap 29 of the portion of the opening 36 for breaking formed by the notch 32 of the bottom plate 26 is strongly pushed inward. Then, the opening forming break line 33 of the inner flap 29 is broken. Accordingly, as shown in FIG. 6, in a state where the inner flap 29 is broken by the opening-forming break line 33 and the breaking opening 36 is opened, a hand is put in the portion of the breaking opening 36, and the inner flap 29 is moved to the inner side. The bottom plate 26 that has been glued to is pulled upward. Then, the bottom plate 26 and the inner flaps 29 and 30 are broken along the folding lines 25 and 28 that also serve as the breaking lines. That is, as shown in FIG. 7, this packaging box is in a state where the bottom portion is completely separated from the four side plates 11 to 14.

  In this way, a part of the inner flap 29 is broken by the opening forming break line 33 of the inner flap 29 to form the breaking opening 36, and the bottom plate 26 and the inner flap 29 are joined together using the opening 36. When the package is broken and removed, the packaging box is in a state as shown in FIG. 7, and the four side plates 11 to 14 are in a square cylindrical state in which the lid plate 22 and the inner flap 24 on the upper end side are connected. Become. Accordingly, the long side plates 11 and 13 and the short side plates 12 and 14 are straightened at the folding line 15 so that they are folded flat. The bottom plate 26 is separated as a flat plate in a state where it is connected to the inner flaps 29 and 30 inside. Further, the U-shaped portion broken by the opening forming break line 33 of the inner flap 29 is also separated from the short side plate 12 at the folding line 28 that also serves as the break line of the root portion of the inner flap 29. It will be.

  In this manner, the packaging box of the present embodiment has the opening forming break line 33 formed in the inner flap 29 so that a hole can be easily formed from the bottom plate 26 and the inner flap 29 overlapping. Depending on the size of the box, the breaking opening 36 formed by the notch 32 of the bottom plate 26 is large enough to contain some fingers, large enough to contain most fingers, large enough to contain one hand, or both hands. An appropriate value such as size can be adopted. Here, the opening forming break line 33 is formed along the outer side of the breaking opening 36 formed by the notch 32 of the bottom plate 26 so that the portion of the opening forming break line 33 is not broken by the weight of the contents. In the normal packing state, the opening forming break line 33 is not exposed to the outside (see FIGS. 3 and 4).

  Due to the development of glue and adhesive, there is a tendency to use hot melt, cold glue or the like having extremely strong adhesive force as the glue 35 for closing the bottom plate 26. In the case of using the paste 35 having strong adhesive force, However, the used packaging box can be easily disassembled, and no great force is required at that time.

  Next, a modification will be described with reference to FIG. In this modification, a part of the opening forming break line 33 of the inner flap 29 is exposed to the breaking opening 36 formed by the notch 32 of the bottom plate 26. And the opening-forming break line 33 such that a part of them intersects each other. According to such a configuration, the force at the time of breaking the opening forming breaking line 33 of the inner flap 29 through the breaking opening 36 is reduced.

  FIG. 9 shows still another embodiment, in which an opening-forming break line 33 is formed at the front end side portion of the inner flap 29 with respect to the break opening 36 formed by the notch 32 of the bottom plate 26. It is exposed in the opening 36. Even in this case, since the opening forming break line 33 is exposed to the breaking opening 36, the force at the time of breaking the inner flap 29 by the opening forming break line 33 is reduced. Is possible.

  Next, another embodiment will be described with reference to FIGS. This embodiment relates to a packaging box in which a corner portion of the packaging box is constituted by an oblique corner side plate 40 and has an octagonal shape. Since the basic configuration is the same as that of the first embodiment, only the differences will be described.

  In this embodiment, as shown in FIG. 10, a corner side plate 40 is disposed between the long side plates 11 and 13 and the short side plates 12 and 14 that are connected to each other in the lateral direction. It has become. That is, between the long side plate 11 and the short side plate 12, between the short side plate 12 and the long side plate 13, and between the long side plate 13 and the short side plate 14, a corner side plate is provided. 40 is arranged and is connected via a folding line 15 so as to be foldable. A corner side plate 40 is further connected to the right end of the short side plate 14 via a fold line 15.

  In addition, an outer flap 26 having a notch 32 on one side is connected to the lower ends of the long side plates 11 and 13 via a fold line 25 that also serves as a break line. Inner flaps 29 and 30 are connected to lower ends of the short side plates 12 and 14 via a fold line 28 that also serves as a break line. An opening forming break line 33 is formed on one inner flap 29.

  When such a corrugated cardboard 10 is folded and assembled, an octagonal packaging box as shown in FIG. 11 is assembled. Here, the opening 36 for breaking is formed by the notch 32 of the outer flap constituting the bottom plate 26, and the area inside the opening forming breaking line 33 of the inner flap 29 located inside the opening 36 is the above-mentioned breaking break. It comes to face the opening 36. As is clear from FIG. 12, a part of the opening forming break line 33 is exposed in the break opening 36.

  Therefore, by pushing a portion of the opening 36 for breaking and inside the opening forming break line 33, the opening forming break line 33 of the inner flap 29 is broken, thereby forming an opening. Therefore, the bottom plate made of the outer flap 26 with the inner flaps 29, 30 glued inside is broken along the inner flaps 29, 30 at the folding lines 25, 28 which also serve as the breaking lines, so that the bottom is completely separated. Thus, disassembly similar to that of the first embodiment is possible.

  Next, another embodiment will be described with reference to FIGS. The packaging box according to this embodiment is assembled by bending the cardboard 44 shown in FIG.

  The packaging box assembled by the corrugated cardboard 44 of FIG. 13 includes six side plates 45, 46, 47, 48, 49, 50 having the same lateral dimensions, and these are folded together via a fold line 51. It is connected so that it can be bent. Further, a joining piece 53 is connected to an end portion of the left end side plate 45 via a folding line 52 so as to be bent.

  A trapezoidal lid plate 56 is connected to the upper ends of the side plates 46 and 49 via a folding line 55 so as to be bent. Further, an inner flap 58 is connected to the upper ends of the side plates 45, 47, 48, 50 via a fold line 57 so as to be bent. A bottom plate 60 is foldably connected to the lower ends of the side plates 46 and 49 by a fold line 59 that also serves as a break line. Inner flaps 62 and 63 are connected to the lower ends of the side plates 45 and 48 via a folding line 61 that also serves as a breaking line. A notch 65 is formed on the side of the bottom plate 60. The bottom plate 63 is formed with an opening forming break line 66.

  When the cardboard 44 having such a configuration is assembled, a hexagonal packaging box as shown in FIG. 14 is formed. Here, FIG. 14 shows a state in which the bottom surface is turned upside down in an upside down manner, and in particular, the opening 67 for breaking by the notch 65 formed in the bottom plate 60 is exposed. As shown in FIG. 15, the inner flaps 62 and 63 are joined to the bottom plate 60 by glue 68.

  Even in such a packaging box, a break opening 67 is formed by the notch 65 of the bottom plate 60, and an opening forming break line is formed on the inner flap 63 arranged to overlap the break opening 67. 66 is formed. Therefore, when the portion of the breaking opening 67 is strongly pushed inward, the opening forming breaking line 66 of the inner flap 63 is broken to form an opening. Accordingly, by pulling up the bottom plate 60 in which the inner flaps 62 and 63 are joined by the glue 68 using this opening, the bottom plate 60 and the inner flaps 62 and 63 are bent at the folding lines 59 and 61 that also serve as the breaking lines. It will be completely separated from the side plates 45 to 50, whereby the packaging box is disassembled. Therefore, even in such a configuration, it is possible to achieve the same operational effects as the above-described embodiment.

  Although the present invention has been described above with reference to the illustrated embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention. For example, the shape of the breaking opening 36 formed by the notch 32 formed in the bottom plate 26 or the position of the opening forming breaking line 33 of the inner flap 29 may be varied depending on the weight of the article put in the packaging box. The design can be changed.

  The packaging box of the present invention can be widely used as a packaging box made of corrugated cardboard, which is used when carrying and storing various articles.

DESCRIPTION OF SYMBOLS 10 Corrugated board 11 Long side side board 12 Short side side board 13 Long side side board 14 Short side side board 15, 16 Folding line 17 Joining piece 21 Folding line 22 Lid board 23 Folding line 24 Inner flap 25 It serves also as a breaking line Folding line 26 Bottom plate 28 Folding line 29/30 also serving as breaking line Inner flap 32 Notch 33 Opening breaking line 35 Glue 36 Breaking opening 40 Corner side plate 44 Corrugated cardboard 45-50 Side plate 51, 52 Folding line 53 Joining piece 55 Folding line 56 Cover plate 57 Folding line 58 Inner flap 59 Folding line also serving as breaking line 60 Bottom plate 61 Folding line also serving as breaking line 62, 63 Inner flap 65 Notch 66 Breaking for opening formation Wire 67 opening for break 68 glue

Claims (8)

A plate-like body that is connected so that the side plates can be bent in the lateral direction is folded and assembled, and an outer flap that constitutes a bottom plate is connected to the lower ends of a pair of side plates facing each other in the side plates so as to be foldable. A plurality of inner flaps are connected to a lower end of a side plate other than the side plate to which the outer flaps are continuously provided so as to be foldable, the inner flaps are bent inward, and the outer flaps are overlapped with the inner flaps. A box that is folded to close the bottom opening,
A breaking line for dismantling is formed at a bending position between the lower end of the corresponding side plate of the outer flap and the inner flap,
A notch is formed in the outer flap constituting the bottom plate, and both ends of the inner flap overlapping with the notch of the plurality of inner flaps intersect with a fold line between the inner flap and the side plate. When an opening forming break line is formed and at least a part of a region surrounded by the folding line between the inner flap and the side plate and the opening forming break line abuts the outer flap, the cut is made. Exposed in the opening of the outer flap formed by the notch,
An inner region of the opening forming break line exposed in the opening of the outer flap is pushed into the opening to break the opening forming break line to form an opening in the inner flap, and the disassembly is performed through the opening. A packaging box in which a bottom plate is removed when the outer flap and the inner flap are removed by a break line, and side plates connected in a lateral direction are folded flat.   The packaging box according to claim 1, wherein the opening-forming break line is located outside the opening of the outer flap formed by the notch. The outer part of the area | region enclosed by the fold line between the said side plates of the said inner flap and the said breaking line for opening formation is glued to the inner surface of the said outer flap. Packaging box. The packaging box according to claim 1, wherein a part of the opening forming break line crosses the opening of the outer flap formed by the notch. A portion of the inner flap surrounded by a fold line between the inner plate and the side plate and the opening forming break line, and a portion opposite to the fold line between the side plate and the outer flap overlaps the outer flap. The packaging box according to claim 1, which matches. Packaging box according to claim 1 comprising an area surrounded fold lines and by said aperture-forming break lines on both sides of the part are What polymerization and the outer flap between the side plates of the inner flap.   The side plate of the packaging box has a pair of long side plates facing each other, a pair of short side plates facing each other, a lateral dimension smaller than the long side plates and the short side plates. A corner side plate disposed between the long side plate and the short side plate obliquely with respect to the long side plate and the short side plate, and a lower end of the pair of long side plates The outer flap constituting the bottom plate is continuously provided, and the inner flap in which the opening forming break line is formed at the lower end of one short side plate of the pair of short side plates. The packaging box according to claim 1.   The side plate of the packaging box is composed of six side plates having the same lateral dimension, and the outer flaps constituting the bottom plate are continuously provided at the lower ends of a pair of the side plates facing each other. The packaging box according to claim 1, wherein the inner flap in which the opening forming break line is formed is continuously provided at a lower end of a side plate.

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