Packing box

Abstract

To provide a packaging box that enables efficient breaking operations while suppressing strength deterioration.SOLUTION: The packaging box includes: a body having a pair of first side walls facing in a first direction and a pair of second side walls facing in a second direction perpendicular to the first direction; a bottom wall closing the lower opening of the body; a top wall closing the upper opening of the body; a hand hole 17 in each of the pair of first side walls; cutting means T formed on the inner surface of the body and extending from one of the side walls to the other of the first pair of side walls via the second pair of side walls; and a plucking part 41 provided on each of the first pair of side walls with the cutting means attached to the inner surface. The hand hole portion has a first cut line and forms an opening when pushed in the first direction. The plucking parts are located outside the first cut lines and are formed in an area bounded by a pair of second cut lines spaced vertically apart and extending in the second direction and the first cut lines.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a packaging box. [Background technology]

[0002] In some cases, a packaging box is used in such a way that the contents contained therein are not transferred but are simply taken out of the box when needed. In this case, it is preferable for the packaging box to have a lid, as this makes it difficult for dust and the like to get into the box.

[0003] Generally, when a packaging box is opened and the opened portion is to be used as a lid, it is necessary to break a portion of the packaging box. Conventionally, as a means for causing the film to break, it has been known to provide a cutting tape for inducing the break or to provide a tearable perforation. Patent Document 1 discloses a packaging box in which tear-off tape is provided on the inner surface of both side wall panels, and the box is opened into a tray-like shape by cutting both side wall panels with the cut tape from the tear-off starting point, which is an H-shaped cut formed in the side wall panels.

[0004] The packaging box of Patent Document 1 has a problem in that it is necessary to press into an H-shaped slit formed in a flat side wall plate and pick up the end of the cutting tape, which is time-consuming. Patent Document 2 discloses a packaging box in which cutting tape is provided on the side wall panels and inner flaps, and a gripping portion is provided at the tip of each inner flap with a pair of tear initiation slits formed along the top and bottom of the tearing portion, and multiple slits toward the gripping portion are provided on both side ends of the abutting portion of at least one of the top and bottom outer flaps, and the slits form a push-in portion that can be freely pushed in to allow fingers to hook onto the edge of the gripping portion. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-166927 [Patent Document 2] Patent No. 4691351 Summary of the Invention [Problem to be solved by the invention]

[0006] In the packaging boxes of Patent Documents 1 and 2, when the end of the cutting tape is pinched, an additional step of pushing the cut is required. Therefore, there is a need for an improvement in the efficiency of the work of tearing packaging boxes. Furthermore, there is a problem in that the hand holes provided in the side walls of the packaging box and the H-shaped cuts that serve as a handle when cutting the box can both cause the strength of the packaging box to deteriorate.

[0007] The present invention has been made in consideration of the above points, and has an object to provide a packaging box that can suppress deterioration in strength and that can be efficiently broken. [Means for solving the problem]

[0008] The present invention has the following aspects. [1] A packaging box comprising: a body portion having a pair of first side walls opposing each other in a first direction and a pair of second side walls opposing each other in a second direction perpendicular to the first direction; a bottom wall closing a lower opening of the body portion; a top wall closing an upper opening of the body portion; hand holes provided in each of the pair of first side walls; cutting means formed on the inner surface of the body portion and extending from one of the pair of first side walls via the pair of second side walls to the other of the pair of first side walls; and gripping portions provided in each of the pair of first side walls, the cutting means being attached to the inner surface of each of the pair of first side walls, wherein the hand holes have first cut lines extending in the vertical direction on both sides of the second direction, and an opening is formed when the box is pushed in the first direction; and the gripping portions are located outside the first cut lines in the second direction, and are formed in an area surrounded by the first cut lines and a pair of second cut lines formed at a distance in the vertical direction and extending in the second direction. [2] The packaging box according to [1], wherein the cutting means includes a cutting tape. [3] The packaging box according to [1] or [2], wherein the first side wall has either an inner flap or an outer flap that protrudes upward and downward, respectively, the second side wall has either an inner flap or an outer flap that protrudes upward and downward, respectively, and the top wall and the bottom wall are formed by the folded inner flap and the outer flap, respectively. [4] The packaging box according to [1] or [2], wherein the second side wall has a side flap, the first side wall has a pair of the side flaps abutted in the second direction, and the hand hole portion is formed across the pair of the side flaps abutted in the second direction. [5] The packaging box described in [4], wherein the top wall has an upper flap protruding in the first direction, the bottom wall has a lower flap protruding in the first direction, and the upper flap and the lower flap are attached to the first side wall from the outside in the first direction with the hand hole portion and the grip portion exposed, respectively. [6] The packaging box according to [1] or [2], wherein the hand hole is formed by a third cut line extending in the second direction and connecting the lower ends of the first cut lines, a fold line located on the upper side and extending in the second direction, and an arc-shaped fourth cut line tangent to the fold line and the first cut line, one of the pair of second cut lines being located on an extension of the third cut line, and the other of the pair of second cut lines including a fifth cut line extending from the inner end in the second direction toward the fourth cut line in a direction normal to the fourth cut line. [Effects of the Invention]

[0009] The present invention can provide a packaging box that allows for efficient tearing operations. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view of a packaging box 1 according to a first embodiment of the present invention. [Figure 2] FIG. 1 is a plan view showing a blank sheet for a packaging box according to a first embodiment of the present invention, arranged so that the inner surface side is visible. [Figure 3] FIG. 2 is an enlarged view of the hand hole portion 17 as viewed from the outside. [Figure 4] 1 is an enlarged view of the hand hole 17 in which an opening 17A is formed. [Figure 5] 10 is an enlarged view of the grip portion 41 cut open outward in the Y direction. [Figure 6] FIG. 10 is a perspective view of a packaging box 1 according to a second embodiment of the present invention. [Figure 7] FIG. 10 is a plan view showing a blank sheet for a packaging box according to a second embodiment of the present invention, arranged so that the inner surface side is visible. [Figure 8] 10 is an enlarged view of a hand hole 17 according to a second embodiment, viewed from the outside. FIG. [Figure 9] 10 is an enlarged view of a grip portion 41 cut open outward in the Y direction in the second embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of a packaging box of the present invention will be described with reference to FIGS. The following embodiment shows one aspect of the present invention, does not limit the present invention, and can be modified as desired within the scope of the technical concept of the present invention. In addition, in the following drawings, the scale and number of each structure are different from the actual structure to make each configuration easier to understand.

[0012] [First embodiment] FIG. 1 is a perspective view of a packaging box 1 according to a first embodiment. The packaging box 1 is a box body having a hexahedral shape. The packaging box 1 is a box body made of paper such as cardboard. Hereinafter, the up and down directions are defined assuming that the packaging box 1 is placed on a horizontal surface.

[0013] As shown in Fig. 1, packaging box 1 includes a body 10 having a pair of first side walls 11, 12 and a pair of second side walls 13, 14, a bottom wall 20 closing the lower opening of body 10, a top wall 30 closing the upper opening of body 10, a hand hole 17, cutting means T, and a gripping portion 41. The pair of first side walls 11, 12 face each other in a first direction. The pair of second side walls 13, 14 face each other in a second direction perpendicular to the first direction.

[0014] In the following description, the direction in which the pair of first side walls 11, 12 face each other is referred to as the X direction, the direction in which the pair of second side walls 13, 14 face each other is referred to as the Y direction, and the direction perpendicular to the X and Y directions is referred to as the Z direction. The X direction corresponds to the first direction. The Y direction corresponds to the second direction. The Z direction corresponds to the up-down direction. The Z direction will be referred to as the upper side or lower side as appropriate. The Y direction will be referred to as the right side or left side as appropriate. The X direction will be referred to as the front side or rear side as appropriate. Note that the terms "up and down direction," "upper side," "lower side," "right side," "left side," "front side," and "rear side" are simply names used to describe the relative positions of the various parts in the posture shown in FIG. 1, and the actual relative positions may be other than those indicated by these names.

[0015] The packaging box 1 is formed by mountain or valley folding a blank sheet S cut out from a single sheet of cardboard at each crease, as shown in Fig. 2. The blank sheet S shown in Fig. 2 is arranged so that the inner side is visible. Each of the creases (fold lines) that separate the first side walls 11, 12, the second side walls 13, 14, the bottom wall 20 (see Figure 1), and the top wall 30 (see Figure 1) of the blank sheet S is a linear groove formed by pressing the inner surface of the blank sheet S. It is also possible to form slits (such as half-cut lines) in the ruled lines, which makes it easier to fold the blank sheet S at the ruled lines.

[0016] The first side wall 11 is formed in a rectangular shape in a plan view. A second side wall 13 is connected to the left edge of the first side wall 11 via a line L1 (see FIG. 2). The second side wall 13 extends rearward from the left edge of the first side wall 11. The second side wall 13 is formed at a right angle to the first side wall 11. The second side wall 13 is formed in a rectangular shape in a plan view.

[0017] A joint piece 15 is provided adjacent to the rear edge of the second side wall 13 via a ruled line L2 (see FIG. 2). The joint piece 15 is formed in a strip shape along the rear edge of the second side wall 13. The joining piece 15 is a portion that is joined to the left end of the inner surface of the first side wall 12 with an adhesive.

[0018] A second side wall 14 is connected to the right edge of the first side wall 11 via a line L3 (see FIG. 2). The second side wall 14 extends rearward from the right edge of the first side wall 11. The second side wall 14 is formed at a right angle to the first side wall 11. The second side wall 14 has the same shape as the second side wall 13.

[0019] The first side wall 12 is connected to the rear edge of the second side wall 14 via a line L4 (see FIG. 2). The first side wall 12 extends leftward from the rear edge of the second side wall 14. The first side wall 12 is formed at a right angle to the second side wall 14. The first side wall 12 has the same shape as the first side wall 11.

[0020] By folding the blank sheet S (see Figure 2) as described above along the lines L1 to L4 and joining the joining piece 15 to the left inner surface of the first side wall 12, a rectangular cylindrical body 10 is formed by the first side wall 11, the second side wall 13, the first side wall 12 and the second side wall 14.

[0021] The lower opening of the body 10 is closed by a bottom wall 20 . As shown in Figure 2, the bottom wall 20 is composed of front and rear inner flaps 21 and left and right outer flaps 22. The front and rear inner flaps 21 are connected to the lower edges of the first side walls 11, 12 via creases L5, L6. The inner flaps 21 may be stepped if necessary. The left and right outer flaps 22 are connected to the lower edges of the second side walls 13, 14 via creases L7, L8. 1, the bottom wall 20 is formed by overlapping left and right outer flaps 22 under the front and rear inner flaps 21. The bottom wall 20 is fixed by, for example, applying adhesive tape (not shown) to the butted portions of the left and right outer flaps 22.

[0022] As shown in FIG. 1, the upper opening of the body 10 is closed by a top wall 30. The top wall 30 is composed of a pair of front and rear inner flaps 31 and a pair of left and right outer flaps 32. The front and rear inner flaps 31 are connected to the upper edges of the front and rear first side walls 11, 12 via creases L9, L10. The inner flaps 31 may be stepped if necessary. The left and right outer flaps 32 are connected to the upper edges of the left and right second side walls 13, 14 via creases L11, L12. 1, the top wall 30 is formed by stacking left and right outer flaps 32 on top of the front and rear inner flaps 31. The top wall 30 is fixed by applying adhesive tape (not shown) to the butt joints of the left and right outer flaps 32. The packaging box 1 is a so-called A-type packaging box.

[0023] Hand hole portions 17 are provided in each of first side walls 11 and 12 (only hand hole portion 17 in first side wall 11 is shown in FIG. 1). Hand hole portions 17 are provided in first side walls 11 and 12 at positions facing each other in the X direction. Hand hole portions 17 are bent when pressed in the X direction, forming openings for handles to be used when packaging box 1 is transported.

[0024] FIG. 3 is an enlarged view of the hand hole portion 17 as viewed from the outside. 3, hand hole 17 has a substantially rectangular shape when viewed from the front. Hand hole 17 is formed in the center of first side walls 11, 12 in the Y direction. Hand hole 17 is formed below the center of first side walls 11, 12 in the Z direction. Hand hole 17 is positioned so that it does not interfere with the contents of packaging box 1 when a hand is inserted.

[0025] Hand hole 17 is surrounded by fold line 51, first cut line 52, third cut line 53, and fourth cut line 54. Fold line 51 is located on the upper side of hand hole 17 and extends in the Y direction. First cut line 52 is formed on both sides of hand hole 17 in the Y direction. First cut line 52 extends in the vertical direction. Third cut line 53 extends in the Y direction and connects the lower ends of first cut lines 52. Fourth cut line 54 is formed in an arc shape tangent to fold line 51 and first cut line 52. Hand hole 17 also has cut line 55 formed in the center in the Y direction, extending in the vertical direction. By forming cut line 55, when pushing hand hole 17, the +Y side portion and the -Y side portion can be locally pressed individually, reducing the load when pushing.

[0026] The cutting means T is provided at a portion of the packaging box 1 to be cut. The cutting means T is, for example, a liner cutter, a zipper, a cutting tape, etc. In the present invention, a cutting tape that does not affect the strength of the packaging box 1 is most preferable. In the following, the cutting means will be described as the cutting tape T. The cutting tape T is made of, for example, resin. In the blank sheet S, the cutting tape T is arranged on the inner surface of the body 10 across the first side wall 12, the second side wall 14, the first side wall 11, the second side wall 13, and the joining piece 15, in the vertical center of the hand hole 17. In the assembled packaging box 1, the cutting tape T extends from the first side wall 11 through the second side wall 14 to the first side wall 12, and also extends from the first side wall 11 through the second side wall 13 to the first side wall 12. The cutting tape T is parallel to the creases L5 to L8 that form the lower edges of each wall and parallel to the creases L9 to L12 that form the upper edges of each wall. The packaging box 1 can be opened and separated into upper and lower parts by cutting off the area including the cutting tape T in a strip shape.

[0027] The gripping portions 41 are provided on both sides of the hand hole 17 in the Y direction. Cutting tape T is attached to the inner surface of the gripping portion 41. The gripping portion 41 is formed in an area surrounded by a first cut line 52 and a pair of second cut lines 56A, 56B. The pair of second cut lines 56A, 56B are formed with a gap in the vertical direction. The pair of second cut lines 56A, 56B are located outside the hand hole 17 in the Y direction and extend in the Y direction. The upper second cut line 56A of the pair of second cut lines 56A, 56B includes a fifth cut line 57. The fifth cut line 57 extends from the inner end of the second cut line 56A in the Y direction toward the fourth cut line 54 in a direction normal to the fourth cut line 54. Of the pair of second cut lines 56A, 56B, the second cut line 56B located on the lower side is located on an extension line of the third cut line 53.

[0028] In packaging box 1 having the above configuration, hand hole portion 17 is pushed inward in the X direction in advance to break third cut line 53 in first side walls 11, 12. As a result, as shown in FIG. 4 , hand hole portion 17 is folded along fold line 51 and pushed inward in the X direction. By pushing hand hole portion 17 inward, opening portion 17A for handling is formed in first side walls 11, 12.

[0029] At this time, an end of gripping portion 41 is exposed in opening 17A. Then, for example, gripping portion 41 located on the +Y side is gripped from opening 17A and pulled outward in the Y direction as shown in FIG. 5, and gripping portion 41 is cut off from first side wall 11 along second cut lines 56A and 56B. Then, gripping portion 41 is moved from first side wall 11 via second side wall 14 to gripping portion 41 on first side wall 12. As a result, a cut piece TA on the +Y side, which is a portion including cutting tape T, is cut off along cutting tape T.

[0030] Next, similarly to gripping portion 41 located on the +Y side, gripping portion 41 located on the -Y side is gripped and pulled outward in the Y direction, and moved from first side wall 11 via second side wall 13 to gripping portion 41 on first side wall 12. This causes cutting piece TA on the -Y side, which is the portion including cutting tape T, to be cut along the cutting tape T. By cutting off the cutting pieces TA on both sides in the Y direction, the packaging box 1 can be opened into a tray shape.

[0031] As described above, in packaging box 1 of this embodiment, gripping portion 41 for pulling cutting tape T is formed in an area surrounded by a pair of first cut lines 52 that form hand holes 17 and second cut lines 56A, 56B located outside the pair of first cut lines 52 in the Y direction, so that the end of gripping portion 41 is exposed in opening 17A for handling. Therefore, in packaging box 1 of this embodiment, there is no need to perform a separate operation of pushing in the cut in order to grip gripping portion 41. Furthermore, in the packaging box 1 of this embodiment, the fold line 51, the third cut line 53, and the cut line 55 of the hand hole portion 17 form an H-shaped cut that serves as a handle when cutting the cut tape T, so that the hand hole portion 17 also serves as the H-shaped cut, which can suppress deterioration in strength compared to when the hand hole portion 17 and the H-shaped cut are provided separately. Therefore, in the packaging box 1 of this embodiment, it is possible to suppress deterioration in strength, and to efficiently perform the breaking operation for opening the packaging into tray-like form.

[0032] In addition, in packaging box 1 of this embodiment, fourth cut line 54 forming the upper corner of opening 17A is arc-shaped, so that it fits snugly in the hand when handled, allowing for a firm grip and a soft feel. Additionally, in packaging box 1 of this embodiment, second cut line 56A includes fifth cut line 57 extending normal to fourth cut line 54 toward fourth cut line 54, so that gripping portion 41 can be smoothly separated from first side wall 11 when gripping and pulling gripping portion 41.

[0033] [Second embodiment] Next, a second embodiment of the packaging box 1 will be described with reference to FIGS. In these figures, the same elements as those in the first embodiment shown in FIGS. 1 to 5 are denoted by the same reference numerals, and the description thereof will be omitted.

[0034] In the first embodiment described above, a configuration in which the packaging box 1 is a so-called A-type packaging box is exemplified, but in this embodiment, a configuration in which the contents are placed on a blank sheet S, the blank sheet S is folded to encase the contents, and the packaging of the contents is completed at the same time as the packaging box 1 is described.

[0035] FIG. 6 is a perspective view of the packaging box 1 according to the second embodiment. FIG. 7 is a diagram showing a blank sheet S of a packaging box according to the second embodiment, and is a plan view arranged so that the inner surface side is visible.

[0036] As shown in FIG. 6, the packaging box 1 is a box body having a hexahedral shape. The packaging box 1 is formed by mountain or valley folding a blank sheet S cut out from a single sheet of cardboard at each crease, as shown in Fig. 7. The blank sheet S shown in Fig. 7 is arranged so that the inner side is visible.

[0037] The bottom wall 20 is formed in a rectangular shape in a plan view. The second side wall 13 is connected to the left edge of the bottom wall 20 via a line L21 (see FIG. 7). The second side wall 13 extends upward from the left edge of the bottom wall 20. The second side wall 13 is formed at a right angle to the bottom wall 20. The second side wall 13 is formed in a rectangular shape in a plan view.

[0038] The second side wall 14 is connected to the right edge of the bottom wall 20 via a line L22 (see FIG. 7). The second side wall 14 extends upward from the right edge of the bottom wall 20. The second side wall 14 is formed at a right angle to the bottom wall 20. The second side wall 14 has the same shape as the second side wall 13.

[0039] A joining piece 15 is provided adjacent to the upper edge of the second side wall 14 via a ruled line L23 (see FIG. 7). The joining piece 15 is formed in a strip shape along the upper edge of the second side wall 14. The joining piece 15 is a portion that is joined by an adhesive to the right end portion of the inner surface of the top wall 30. The joining piece 15 may be subjected to a step-flattening process as necessary.

[0040] A top wall 30 is connected to the upper edge of the second side wall 13 via a line L24 (see FIG. 7). The top wall 30 extends rightward from the upper edge of the second side wall 13. The top wall 30 is formed at a right angle to the second side wall 13. The top wall 30 has the same shape as the bottom wall 20.

[0041] By folding the blank sheet S as described above along the lines L21 to L24 and joining the joining piece 15 to the right inner surface of the top wall 30, a rectangular cylindrical body 10 is formed by the bottom wall 20, the second side wall 14, the top wall 30 and the second side wall 13.

[0042] The front opening of the body 10 is closed by a first side wall 11 . As shown in FIG. 7, the first side wall 11 is made up of left and right side flaps 11A which serve as inner flaps, and an upper flap 30A and a lower flap 20A which serve as outer flaps. The left and right side flaps 11A are connected to the front edges of the second side walls 13, 14 via creases L25, L26. The upper flap 30A protrudes in the X direction from the top wall 30. The upper flap 30A is connected to the front edge of the top wall 30 via a line L29. The lower flap 20A protrudes in the X direction from the bottom wall 20. The lower flap 20A is connected to the front edge of the bottom wall 20 via a line L30. The upper flap 30A and the lower flap 20A may be subjected to a step-flattening process as necessary.

[0043] As shown in Figure 6, the first side wall 11 is formed by butting together left and right side flaps 11A as inner flaps in the Y direction, and folding and stacking an upper flap 30A and a lower flap 20A as outer flaps that protrude in the X direction outside the side flaps 11A in the X direction. The first side wall 11 is fixed by, for example, sticking adhesive tape (not shown) to the butted portions of the left and right side flaps 11A.

[0044] The rear opening of the body 10 is closed by a first side wall 12 . The first side wall 12 is composed of left and right side flaps 12A which serve as inner flaps, and an upper flap 30A and a lower flap 20A which serve as outer flaps. The left and right side flaps 12A are connected to the rear edges of the second side walls 13, 14 via creases L27, L28. The upper flap 30A is connected to the rear edge of the top wall 30 via a crease L31. The lower flap 20A is connected to the rear edge of the bottom wall 20 via a crease L32.

[0045] The first side wall 12 is formed by butting together the left and right side flaps 12A as inner flaps in the Y direction, and folding and stacking the upper flap 30A and the lower flap 20A as outer flaps that protrude in the X direction outside the side flaps 12A in the X direction. The first side wall 12 is fixed by, for example, sticking adhesive tape (not shown) to the butted portions of the left and right side flaps 12A.

[0046] In this embodiment, hand hole 17 of first side wall 11 is formed across a pair of side flaps 11A that are butted together in the Y direction. Hand hole 17 of first side wall 12 in this embodiment is formed across a pair of side flaps 12A that are butted together in the Y direction. Hand hole 17 and gripping portion 41 of first side walls 11, 12 are provided in an exposed state between upper flap 30A and lower flap 20A.

[0047] FIG. 8 is an enlarged view of the hand hole 17 according to this embodiment as viewed from the outside. 8, gripping portion 41 including first cut line 52, fourth cut line 54, second cut lines 56A and 56B, and fifth cut line 57 in hand hole 17 of first side wall 11 is arranged separately on one side flap 11A and the other side flap 11A, sandwiching butt line 11B extending in the Z direction. Fold line 51 and third cut line 53 in hand hole 17 are perpendicular to butt line 11B at the center in the Y direction. Cut tape T extends in the Y direction and is perpendicular to butt line 11B at the center of hand hole 17 in the up-down direction. The hand hole 17, the gripping portion 41 and the cutting tape T of the first side wall 12 have the same configuration as those of the first side wall 11 described above.

[0048] In the packaging box 1 having the above configuration, as in the first embodiment, the hand hole portion 17 is first pushed inward in the X direction to break the third cut line 53 in the first side walls 11 and 12, and then pushed further inward to form a handle opening 17A in the first side walls 11 and 12. 9, gripping portion 41 is gripped and pulled outward in the Y direction from opening 17A, and gripping portion 41 is cut off from first side wall 11 along second cut lines 56A and 56B. Then, gripping portion 41 is moved from first side wall 11 through second side wall 14 to gripping portion 41 on first side wall 12. As a result, a cut piece TA is cut off along cutting tape T, which is a portion including cutting tape T.

[0049] As described above, in the packaging box 1 of this embodiment, similar to the first embodiment described above, there is no need to perform a separate operation of pushing the slit to grip the gripping portion 41 even for a wrap-around case type packaging box, and the tearing operation for opening into a tray shape can be carried out efficiently.

[0050] Furthermore, in the packaging box 1 of this embodiment, the upper flap 30A and the lower flap 20A are attached to the first side walls 11, 12 from the outside in the X direction with the hand hole portion 17 and the gripping portion 41 exposed, respectively. Therefore, when the packaging box 1 is transported with the opening 17A open, even if a load is applied to the first side walls 11, 12 outward in the X direction, the first side walls 11, 12 can be prevented from opening, and the strength of the first side walls 11, 12 can be improved.

[0051] While the 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 these examples. The shapes and combinations of the components shown in the above examples are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present invention.

[0052] For example, in the above embodiment, the hand hole 17 and the grip portion 41 are provided on the first side walls 11, 12, but the present invention is not limited to this configuration. The hand hole 17 and the grip portion 41 may be provided on the second side walls 13, 14 depending on the length of the first side walls 11, 12. [Explanation of symbols]

[0053] 1...packaging box, 10...body portion, 11, 12...first side wall, 11A, 12A...side flaps, 13, 14...second side wall, 17...hand hole portion, 17A...opening, 20...bottom wall, 20A...lower flap, 21, 31...inner flaps, 22, 32...outer flaps, 30...top wall, 30A...upper flap, 41...grip portion, 51...fold line, 52...first cut line, 53...third cut line, 54...fourth cut line, 56A, 56B...second cut line, 57...fifth cut line, T...cutting means (cut tape)

Claims

1. a body portion having a pair of first side walls opposing each other in a first direction and a pair of second side walls opposing each other in a second direction perpendicular to the first direction; a bottom wall closing a lower opening of the body portion; a top wall closing an upper opening of the body; hand holes provided in the pair of first side walls, respectively; a cutting means formed on the inner surface of the body portion and extending from one of the pair of first side walls through the pair of second side walls to the other of the pair of first side walls; a pair of gripping portions provided on the first side walls, each having the cutting means attached to an inner surface thereof; Equipped with The hand hole portion has first cut lines extending in the up-down direction on both sides in the second direction, and an opening is formed when the hand hole portion is pushed in the first direction, The knob portion is a pair of second cut lines are formed on the outer side of the first cut lines in the second direction, the second cut lines are formed at intervals in the up-down direction, and extend in the second direction, and the pair of second cut lines are formed in an area surrounded by the first cut lines, The hand hole portion is a third cut line extending in the second direction and connecting lower ends of the first cut lines; A fold line located on the upper side and extending in the second direction; a fourth cut line tangent to the folding line and the first cut line; It is formed by being surrounded by one of the pair of second cut lines is located on an extension line of the third cut line, The other of the pair of second cut lines includes a fifth cut line extending from an inner end in the second direction toward the fourth cut line in a direction normal to the fourth cut line.

2. The cutting means includes a cutting tape. The packaging box according to claim 1.

3. the first side wall has either an inner flap or an outer flap that protrudes upward and downward, respectively; the second side wall has the other of an inner flap and an outer flap that protrude upward and downward, respectively; The top wall and the bottom wall are formed by the folded inner flap and the folded outer flap, respectively. The packaging box according to claim 1 or 2.

4. the second side wall has a side flap; the first side wall has a pair of the side flaps abutting against each other in the second direction, The hand hole is formed across the pair of side flaps that are butted against each other in the second direction. The packaging box according to claim 1 or 2.

5. the top wall has an upper flap that protrudes in the first direction, the bottom wall has a lower flap that protrudes in the first direction; The upper flap and the lower flap are attached to the first side wall from the outside in the first direction, with the hand hole and the grip portion exposed, respectively. The packaging box according to claim 4.

6. The fourth cut line is an arc tangent to the fold line and the first cut line. The packaging box according to claim 1 or 2.

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