JP2018177314A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box in which a top plate can be easily opened and opened even when the top plate is strongly fixed to a wall portion. SOLUTION: The packaging box 1 is connected to a bottom plate 10, front and rear end walls 11 and 12 and left and right side walls 13 and 14 connected to the bottom plate 10, and an upper edge portion of the rear end wall 12. It includes a top plate 15 and an outer wall 16 that is connected to the front edge of the top plate 15 and is overlapped with the outer surface of the front end wall 11. The outer wall 16 and the front end wall 11 are connected by a connecting portion 50. An opening portion 60 is formed on the front end wall 11, and a connecting portion 50 is arranged in the opening portion 60. [Selection diagram] Fig. 1

Description

  The present invention relates to a packaging box.

  As an N-type corrugated cardboard box in which the bottom plate is connected to the front, rear, left and right walls and the top plate is connected to the upper edge of the back wall, the outer wall connected to the front edge of the top plate is the front wall There is one connected to a part (see, for example, Patent Document 1).

Utility model registration No. 3132839 gazette

  In the conventional packaging box described above, when the outer wall is strongly fixed to the front wall, there is a problem that it is difficult to open the top plate because it is difficult to remove the outer wall from the front wall.

  An object of the present invention is to solve the above-mentioned problems and to provide a packaging box capable of easily opening and opening the top plate even when the top plate is strongly fixed to the wall.

  In order to solve the above problems, according to the present invention, a bottom plate, a front end wall and a rear end wall continuously connected to front and rear edges of the bottom plate, and a left wall and a right side continuously connected to left and right edges of the bottom plate With the wall. The packaging box further includes a top plate continuously connected to the upper edge of the rear end wall, and an outer wall continuous to the front edge of the top plate and stacked on the outer surface of the front end wall, The outer wall and the front end wall are connected by a connecting portion. The front end wall is formed with an unsealing portion partitioned by a cutting guide line, and the connection portion is disposed in the unsealing portion.

  In the packaging box of the present invention, when the opening portion is cut off from the front end wall, the connecting portion is also cut off from the front end wall together with the opening portion. This allows the top plate to be opened because the outer wall is removed from the front end wall. In this configuration, even when the outer wall is strongly fixed to the front end wall, the top plate can be easily opened and the packaging box can be opened without being affected by the joining force of the connecting portion.

Further, when the top plate is opened, the unsealing part is connected to the outer wall, so that it is possible to prevent the unsealing part from being scattered when the packaging box is opened.
In addition, since the packaging box can not be restored after the opening portion is separated from the front end wall, it is possible to prevent the falsification of the contents.

  In the packaging box described above, the connection portion includes a connection hole formed in the front end wall and a connection piece formed in the outer wall, and the connection piece is configured to be inserted into the connection hole. Can easily and reliably fix the outer wall to the front wall.

  In the packaging box described above, preferably, the unsealing portion is formed from the front end wall to the bottom plate. In this configuration, the unsealing portion on the bottom plate side is not covered by the outer wall, so the unsealing portion can be easily cut off from the bottom plate side.

  In the packaging box of the present invention, even when the top plate is strongly fixed to the wall, the top plate can be easily opened and opened.

It is the perspective view which looked at the packaging box concerning the embodiment of the present invention from the front upper left. It is a figure showing the blank sheet of the packing box concerning the embodiment of the present invention. The packaging box which concerns on embodiment of this invention WHEREIN: It is the perspective view which looked at the state before closing a top plate from the front upper left. The packaging box which concerns on embodiment of this invention WHEREIN: It is the perspective view which looked at the state which closed the top plate from the front upper left. It is the figure which showed each part of the packaging box which concerns on embodiment of this invention, (a) is the perspective view which looked at the connection part from inner side, (b) is a sectional side view of a handle board. It is the perspective view which looked at the state which opened the packaging box concerning embodiment of this invention from the front upper left. It is the perspective view which looked at the modification of the packaging box concerning the embodiment of the present invention from the front upper left.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the following description, the front, rear, left, and right directions are set for convenience in describing the packaging box of each embodiment, and the configuration of the packaging box is not limited.

  The packaging box 1 of this embodiment is an N-type corrugated box, as shown in FIG. The packaging box 1 includes a bottom plate 10, front and rear end walls 11, 12 and left and right side walls 13, 14 continuously connected to the bottom plate 10, a top plate 15 continuously connected to the rear end wall 12, and a top plate 15 continuously. And the outer wall 16 is connected to the front end wall 11.

As shown in FIG. 2, the packaging box 1 is formed by mountain-folding or valley-folding a blank sheet S obtained by cutting out a single cardboard sheet at each ruled line. The blank sheet S shown in FIG. 2 is disposed so that the inner side can be seen.
Each ruled line (folding line) of the blank sheet S is a linear groove formed by pressing the surface of the blank sheet S. In addition, you may form a cut in a ruled line. This makes it easier to bend the blank sheet S at the ruled lines.

  The bottom plate 10 is formed in a rectangular shape as shown in FIG. 3, and the bottom plate 10 of the present embodiment is formed to have substantially the same length in the front-rear direction and the left-right direction (see FIG. 2) .

A front end wall 11 is continuously provided at a front edge portion of the bottom plate 10 via a crease L1. The front end wall 11 extends upward from the front edge of the bottom plate 10. The front end wall 11 is formed perpendicular to the bottom plate 10.
The front end wall 11 extends in a band shape in the left-right direction. The left and right ends of the front end wall 11 project more than the left and right edges of the bottom plate 10. Lower portions of the left and right edges 11a and 11b of the front end wall 11 are inclined so as to enter inward as going downward (see FIG. 2).

  The rear end wall 12 is continuously provided on the rear edge portion of the bottom plate 10 via a ruled line L2. The rear end wall 12 extends upward from the rear edge of the bottom plate 10. The rear end wall 12 is formed perpendicular to the bottom plate 10. The rear end wall 12 has the same shape as the front end wall 11.

  The left side wall 13 is continuously provided on the left edge of the bottom plate 10 via a ruled line L3. The left side wall 13 extends upward from the left edge of the bottom plate 10. The left side wall 13 is formed perpendicular to the bottom plate 10. The left side wall 13 extends in a strip shape in the front-rear direction.

  The right side wall 14 is continuously provided on the right edge of the bottom plate 10 via a ruled line L4. The right side wall 14 extends upward from the right edge of the bottom plate 10. The right side wall 14 is formed perpendicular to the bottom plate 10. The right side wall 14 has the same shape as the left side wall 13.

As shown in FIG. 2, the left edge 11 a of the front end wall 11 and the front edge 13 a of the left side wall 13 are connected to one another via a folding piece 20. Further, the right edge 11 b of the front end wall 11 and the front edge 14 a of the right side wall 14 are connected to one another via a folding piece 20.
As shown in FIG. 3, when the front end wall 11 and the left and right side walls 13 and 14 are raised relative to the bottom plate 10, the left and right foldable pieces 20 and 20 overlap the inner surface of the front end wall 11. Thus, the left and right side walls 13 and 14 are vertically connected to the front end wall 11.

As shown in FIG. 2, the left edge 12 a of the rear end wall 12 and the rear edge 13 b of the left side wall 13 are connected to one another via a folding piece 20. Further, the right edge 12 b of the rear end wall 12 and the rear edge 14 b of the right side wall 14 are connected to one another via the folding piece 20.
As shown in FIG. 3, when the rear end wall 12 and the left and right side walls 13 and 14 are raised relative to the bottom plate 10, the left and right folding pieces 20 and 20 overlap the inner surface of the rear end wall 12. Thus, the left and right side walls 13 and 14 are vertically connected to the rear end wall 12.

The top plate 15 is continuously provided on the upper edge of the rear end wall 12 via the ruled line L5. The top plate 15 extends forward from the upper edge of the rear end wall 12, as shown in FIG. The top plate 15 is formed perpendicular to the rear end wall 12.
The top plate 15 is a rectangular lid plate closing an opening surrounded by the front and rear end walls 11 and 12 and the left and right side walls 13 and 14.
The length of the top plate 15 in the front-rear direction is the same as the distance between the front and rear end walls 11 and 12. Further, the length in the left-right direction of the top plate 15 is the same as the length in the left-right direction of the front and rear end walls 11 and 12.

  An outer wall 16 is continuously provided at a front edge portion of the top plate 15 via a crease L6. The outer wall 16 extends downward from the front edge of the top plate 15. The outer wall 16 is formed perpendicular to the top plate 15 and is superimposed on the outer surface of the front end wall 11. The outer wall 16 has the same shape as the front end wall 11.

  A pair of front and rear handle plates 31 and 32 are raised at the central portion of the top plate 15. The front and rear handle plates 31 and 32 are portions where the top plate 15 is cut and raised. The two handle plates 31 and 32 are portions that a person grips when carrying the packaging box 1.

The lower edge portion of the front handle plate 31 is connected to the top plate 15 via a ruled line L31 extending in the left-right direction. As shown in FIG. 4, the front handle plate 31 is a part of the front portion of the top plate 15.
In the state before raising the front handle plate 31 from the top plate 15, the outer edge portions other than the lower edge portion of the front handle plate 31 are connected to the top plate 15 via the perforation-shaped cutting guide line L32. .
A curved cut is formed at the left and right ends of the cutting guide line L32. In this way, it is possible to prevent the end of the cutting guide line L32 from being torn when the cutting guide line L32 is cut open.
Further, the top plate 15 is formed with a semicircular finger hook 33 in contact with the cutting guide line L32.

  As shown in FIG. 1, a rectangular opening 31 a is formed in the lower portion of the front handle plate 31. At the upper edge of the opening 31a, as shown in FIG. 2, a handle plate 34 is continuously provided via a ruled line L33 (see FIG. 5 (b)).

  As shown in FIGS. 1 and 4, the rear side handle plate 32 has a shape that is symmetrical in the front-rear direction with respect to the front side handle plate 31, except that the handle plate 34 is not formed in the opening 32 a. There is.

The lower edges of the front and rear handle plates 31 and 32 are spaced apart in the front-rear direction. With the front and rear handle plates 31 and 32 raised, as shown in FIG. 5B, the upper edges of the front and rear handle plates 31 and 32 are in contact with each other.
The handle plate 34 of the front handle plate 31 is bent rearward, and is inserted into the opening 32 a of the rear handle plate 32. Further, the front end portion of the handle plate 34 is folded on the rear surface of the rear handle plate 32.

In the packaging box 1 of the present embodiment, as shown in FIG. 1, a connecting portion 50 between the front end wall 11 and the outer wall 16 is provided. The connection part 50 is a part which connects the front end wall 11 and the outer wall 16, and is formed in the center part of the front end wall 11 and the outer wall 16 in the left-right direction.
As shown in FIG. 5A, the connection portion 50 of the present embodiment includes left and right connection holes 51 and 51 formed in the front end wall 11 and left and right connection pieces 52 and 52 formed in the outer wall 16; Is equipped.

  The connection hole 51 is a rectangular through hole formed in the front end wall 11 as shown in FIG. The left and right connection holes 51, 51 are arranged at an interval in the left-right direction.

  The connection piece 52 is a portion obtained by bending a part of the outer wall 16 inward. The connection piece 52 is inserted into the connection hole 51. The outer wall 16 is connected to the front end wall 11 by the connection piece 52 engaging with the connection hole 51.

  The left and right connection pieces 52, 52 are arranged at an interval in the left-right direction. The two connection pieces 52 are arranged to overlap the front sides of the two connection holes 51 of the front end wall 11 when the outer wall 16 is superimposed on the outer surface of the front end wall 11.

  In the state of the blank sheet S shown in FIG. 2, the inner edge portion of the connection piece 52 is provided continuously with the outer wall 16 via the ruled line L51. An outer peripheral edge portion other than the inner edge portion of the connection piece 52 is continuously provided to the outer wall 16 via a cutting guide line L52. The cutting guide line L52 is a perforated line or a half cut line.

  The width of the connecting piece 52 increases in the vertical direction from the inner edge toward the outer side. Moreover, as shown to Fig.5 (a), the height of the connection piece 52 is formed larger than the height of the connection hole 51. As shown in FIG.

  In the packaging box 1 of the present embodiment, the unsealing portion 60 is formed from the front end wall 11 to the bottom plate 10. The opening portion 60 is an area defined by the front end wall 11 and the bottom plate 10. The opening portion 60 is formed with a front portion 61 on the front end wall 11 side and a bottom portion 62 on the bottom plate 10 side.

The front part 61 of the opening part 60 is formed in the center part of the left-right direction of the front end wall 11 (refer FIG. 3). The front portion 61 is formed between the pair of left and right cutting guide lines L61 and L61.
The cutting guide line L61 is a perforated line and is formed from the upper edge to the lower edge of the front end wall 11. The cutting guide line L61 is inclined inward from the upper end to the lower end.
Therefore, the front portion 61 formed between the left and right cutting guide lines L61 and L61 narrows from the upper end to the lower end.

  The upper end portion of the cutting guide line L61 is disposed outside the connection hole 51. Further, the connection hole 51 overlaps the central portion in the height direction of the cutting guide line L61. And both the connection holes 51 and 51 of the connection part 50 are arrange | positioned in the front part 61 of the opening part 60. As shown in FIG.

The bottom portion 62 of the unsealing portion 60 is formed at the front end portion of the bottom plate 10 at the center in the left-right direction. The bottom 62 is a rectangular area surrounded by the front edge of the bottom plate 10 and the cutting guide line L62.
The cutting guide line L62 is a perforated line and is formed from the lower end of one cutting guide line L61 of the front end wall 11 to the lower end of the other cutting guide line L61.

Next, the procedure of assembling the packaging box 1 of this embodiment is demonstrated.
In the packaging box 1 of the present embodiment, as shown in FIG. 3, the left and right side walls 13, 14 are connected to the front and rear end walls 11, 12. When raised, the front and rear end walls 11 and 12 also rise in conjunction with the left and right side walls 13 and 14. Thus, the wall portion of the packaging box 1 can be easily assembled.

  Subsequently, as shown in FIG. 4, the top plate 15 is bent relative to the rear end wall 12 to close the opening of the wall portion by the top plate 15. Further, the outer wall 16 is bent relative to the top plate 15 to overlap the outer wall 16 on the outer surface of the front end wall 11.

As shown in FIG. 5A, with the outer wall 16 superimposed on the front end wall 11, the connection piece 52 is inserted into the connection hole 51 of the front end wall 11 when the connection piece 52 of the outer wall 16 is pushed inward from the outside. .
Thereby, the connection piece 52 protrudes to the inner surface side of the front end wall 11, the connection piece 52 is engaged with the connection hole 51, and the outer wall 16 is strongly fixed to the front end wall 11. Thus, the top plate 15 is fixed to the wall, and the assembly operation of the packaging box 1 is completed.

When carrying the packaging box 1, as shown in FIG. 1, a finger is inserted into the finger hooking hole 33 of the top plate 15 to raise the front and rear handle plates 31 and 32 from the top plate 15. Further, as shown in FIG. 5 (b), the handle plate 34 of the front handle plate 31 is assembled to the rear handle plate 32.
Thereby, a person can hold both the handle plates 31 and 32 to carry the packaging box 1. In addition, since the hand hangs on the flat handle plate 34, it is easy to grip the both handle plates 31 and 32.

Next, the procedure for opening the packaging box 1 of the present embodiment will be described.
In the packaging box 1 of the present embodiment, the front portion 61 of the unsealing portion 60 is covered by the outer wall 16, but the bottom portion 62 of the unsealing portion 60 is exposed to the outside. Therefore, the bottom portion 62 of the unsealing portion 60 is pushed inward from the outside, and the unsealing portion 60 is pulled up from the bottom portion 62 side. In this manner, the opening 60 can be easily cut from the bottom plate 10 and the front end wall 11.

  As shown in FIG. 6, when the unsealing portion 60 is cut out from the front end wall 11, the connecting holes 51, 51 of the connecting portion 50 are also cut out from the front end wall 11 together with the unsealing portion 60. Thereby, the outer wall 16 is removed from the front end wall 11, and the top plate 15 can be opened.

  In the packaging box 1 of the present embodiment as described above, as shown in FIG. 1, even when the outer wall 15 is strongly fixed to the front end wall 11, it is shown in FIG. Thus, the top plate 15 can be easily opened to open the packaging box 1.

Further, in the packaging box 1 of the present embodiment, when the top plate 15 is opened, the unsealing portion 60 is connected to the outer wall 16, so that the opening portion 60 can be prevented from scattering when the packaging box 1 is opened. .
Moreover, in the packaging box 1 of the present embodiment, since the packaging box 1 can not be restored after the opening section 60 is separated from the front end wall 11, it is possible to prevent falsification of the contents.

As mentioned above, although embodiment of this invention was described, this invention can be suitably changed in the range which does not deviate from the meaning, without being limited to the said embodiment.
In the packaging box 1 of the present embodiment, as shown in FIG. 5A, the connection portion 50 is configured by the connection hole 51 and the connection piece 52, but the configuration of the connection portion is not limited.
For example, as shown in FIG. 7, the connecting portion 50 may be configured by an adhesive 65 such as a hot melt attached between the inner surface of the outer wall 16 and the outer surface of the front end wall 11. Also in this configuration, the top plate 15 can be easily opened by arranging the connecting portion 50 in the unsealing portion 60.

  In the packaging box 1 of the present embodiment, as shown in FIG. 1, the front and rear handle plates 31 and 32 are provided on the top plate 15, but the shape of the handle plate is not limited. Alternatively, the top plate 15 may not be provided with a handle plate.

  In the packaging box 1 of the present embodiment, as shown in FIG. 2, the front and rear end walls 11 and 12 and the left and right side walls 13 and 14 are connected via the folding pieces 20. 12 and the left and right side walls 13, 14 may be connected by a connecting means such as an adhesive or a plug.

  Although the packaging box 1 of the present embodiment is made of cardboard, the packaging box may be formed of various known paperboards.

Reference Signs List 1 packaging box 10 bottom plate 11 front end wall 12 rear end wall 13 left side wall 14 right side wall 15 top plate 16 outer wall 20 folding piece 31 front handle plate 32 rear handle plate 34 handle plate 50 connection portion 51 connection hole 52 connection piece 60 opened Part 61 Front 62 Bottom 65 Adhesive S Blank sheet

Claims (3)

Bottom plate,
A front end wall and a rear end wall continuously provided at front and rear edges of the bottom plate;
A left side wall and a right side wall connected to the left and right edges of the bottom plate;
A top plate connected to the upper edge of the rear end wall;
And an outer wall continuous with the front edge of the top plate and superimposed on the outer surface of the front end wall;
The outer wall and the front end wall are connected by a connecting portion,
The front end wall is formed with an opening section partitioned by a cutting guide line,
The packaging box characterized in that the connecting portion is disposed in the opening portion. A packaging box according to claim 1, wherein
The connecting portion is
A connecting hole formed in the front end wall;
And a connecting piece formed on the outer wall,
The packaging box characterized in that the connection piece is inserted into the connection hole. It is the packaging box of Claim 1 or Claim 2, Comprising:
The packaging box is characterized in that the opening portion is formed from the front end wall to the bottom plate.

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