JP2019142543A - Packaging box - Google Patents

Abstract

To provide a packaging box which can form an opening portion that is an intended shape in an upper half portion of a closing portion easily.SOLUTION: A packaging box 1 comprises a drum portion 51 and closing portions 52, 53. The drum portion 51 is formed by first side plates 2, 3 and second side plates 4, 5, and the closing portions 52, 53 are formed by bending inner flaps 21, 22, 25, 26 inwardly as existing gaps mutually, and bending lower outer flaps 13, 14 and upper outer flaps 17, 18 inwardly, and making the lower outer flaps and the upper outer flaps superpose and adhere to the inner flaps 21, 22, 25, 26. The packaging box comprises first break means 41 which are formed in a predetermined width, and the upper outer flaps 17, 18 are superposed and adhered along upper end edges of the first break means 41, and the lower outer flaps 13, 14 are superposed and adhered along lower end edges of the first break means and comprises protrusion portions 27, 28 in top center portions. The packaging box comprises second break means 42 along outer edges of the protrusion portions 27, 28 in upper half portions of the inner flaps 21, 22, 25, 26.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a packaging box formed of corrugated paperboard.

  Conventionally, a square cylindrical body formed by a pair of first side plates and a second side plate that are alternately arranged, and a pair of closing portions that close both ends of the body portion, The inner flaps connected to both end edges of each second side plate are bent inward, the outer flaps connected to both end edges of each first side plate are bent inward, and are bonded to the inner flap by polymerization. The packaging box formed by this is known (refer patent document 1).

  In the packaging box described in Patent Document 1, a corrugated cardboard breaking zipper including two breakable lines is provided on each second side plate and the inner flap in order to facilitate an opening operation and the like. In the closed portion, the upper and lower outer flaps are superposed and bonded to the inner flap along the upper and lower breakable lines of the corrugated cardboard breaking zipper so that the corrugated cardboard breaking zipper can pass through.

  On the other hand, the packaging box has an upper half portion opened in one of the closed portions so as to facilitate taking out the beverage cans one by one when the beverage cans are put into a vending machine or the like. Is desired. In this case, in the packaging box, after the upper outer flap that closes the upper half of the closing portion is peeled off from the inner flap and folded, the upper half of the left and right inner flaps break along the breakable line. Is done.

JP-A-2006-155559

  However, in the packaging box described in Patent Document 1, when the upper half of the left and right inner flaps are folded along the breakable line, the breakage occurs along which of the upper and lower breakable lines of the cardboard breaking zipper However, there is a disadvantage that an opening having an unintended shape may be formed.

  An object of the present invention is to provide a packaging box that can easily form an opening having an intended shape in the upper half of the closed portion, eliminating such disadvantages.

  In order to achieve this object, a packaging box of the present invention includes a rectangular tubular body and a pair of closed portions that close both ends of the body, and the body portions are alternately arranged. Each of the pair of first side plates and second side plates is formed, and the closing portion extends inwardly from both end edges of each second side plate, and each inner side flap has a gap at the opposite end edge, and each first side plate. In a corrugated paperboard packaging box formed by each outer flap extending inward from both end edges of the inner flap and polymerized and bonded to the outer side of the inner flap, a predetermined width from each inner flap to each second side plate An upper outer flap that closes the upper half of the closing portion is overlap-bonded to the inner flap along the upper edge of the first breaking means, The lower outer flap that closes the half is at the tip of the lower end of the first breaking means Each of the inner flaps has a protruding portion that protrudes toward the tip of the upper outer flap beyond the first breaking means and closes the gap between the inner flaps. A second breaking means is provided in the upper half of the first breaking means from the tip to the upper edge of the first breaking means along the outer edge of the protrusion.

  In the packaging box of the present invention, when the opening is formed in the upper half of the closed portion, first, the upper outer flap is peeled off from the left and right inner flaps to which the upper outer flap is superposed and bonded. Next, a hand is put into the gap between the left and right inner flaps, and the upper half of each inner flap is folded along the first breaking means.

  At this time, the left and right inner flaps are restrained by the protrusions. However, in the packaging box according to the present invention, the protrusions are broken by breaking the upper half of each inner flap along the second breaking means. It can be avoided and can be easily folded while breaking along either the upper edge or the lower edge of the first breaking means, and an opening of the intended shape can be easily formed in the upper half of the closing portion. be able to.

  Moreover, the packaging box of this invention is equipped with a 3rd fracture | rupture means in the connection part of the outer flap and 1st side plate which obstruct | occludes the upper half part of the said obstruction | occlusion part, and connects the upper half part of an inner flap and a 2nd side plate. It is preferable to provide a 4th fracture | rupture means in a part.

  In the packaging box of the present invention, the folded upper outer flap can be broken and removed by the third breaking means, and the upper half of the folded inner flap is broken and removed by the third breaking means. Therefore, the opening having the intended shape can be formed more easily.

The expanded view which shows one Embodiment of the packaging box of this invention. The perspective view of the packaging box obtained by assembling the expanded view shown in FIG. A is a perspective view showing a state where the outer flap of the packaging box shown in FIG. 2 is folded, B is a perspective view showing a state where the inner flap of the packaging box shown in FIG. 2 is folded, and C is a packaging box shown in FIG. The perspective view which shows the state which formed the opening part in.

  Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  As shown in FIG. 1 in the unfolded state (outer surface side), the packaging box 1 of this embodiment is formed by a single piece of corrugated paperboard that is punched and formed into an unfolded shape, and each pair of first side plates 2, 3 and The second side plates 4, 5 are alternately arranged via the crease lines 6, 7, 8, and the adhesive strip 10 is attached to the edge parallel to the crease line 8 of one second side plate 4 via the crease line 9. It is connected continuously.

  In the packaging box 1, the first side plate 2 serves as a bottom surface and the first side plate 3 serves as a top surface. Therefore, the edge of the first side plate 2 orthogonal to the fold lines 7 and 8 is connected to the fold lines 11 and 12. Lower outer flaps 13 and 14 are provided continuously, and upper outer flaps 17 and 18 are provided continuously on the edge of the first side plate 3 perpendicular to the fold line 6 via the fold lines 15 and 16.

  Inner flaps 21 and 22 are connected to end edges orthogonal to the fold lines 8 and 9 of the second side plate 4 via fold lines 19 and 20, and the fold lines 6 and 7 of the second side plate 5 are connected. Inner flaps 21, 22 are connected to end edges orthogonal to each other via crease lines 19, 20.

  The lower outer flaps 13 and 14 are provided with projecting portions 27 and 28 at the center of the tip, and the upper outer flaps 17 and 18 are provided with ellipsoidal finger insertion portions 29 and 30. The finger insertion portions 29 and 30 include crease lines 31 and 32 parallel to the crease lines 15 and 16 on the side close to the crease lines 15 and 16, and a cut line 33 at a portion excluding the oval crease lines 31 and 32. , 34 are provided.

  Further, the first side plate 3 includes house-shaped finger insertion portions 35 and 36 at positions symmetrical to the finger insertion portions 29 and 30 with respect to the crease lines 15 and 16. The finger insertion portions 35 and 36 are provided with fold lines 37 and 38 parallel to the fold lines 15 and 16 at portions corresponding to the house-shaped roof on the side close to the fold lines 15 and 16, respectively. Cut lines 39 and 40 are provided in portions excluding 31 and 32.

  The packaging box 1 further includes a first breaking means 41 formed linearly from one inner flap 21, 25 to the other inner flap 22, 26 via the second side plates 4, 5, and the inner flaps 21, 22. , 25, 26 and the first breaking means 41, the second breaking means 42 formed by a cut line formed in an arc shape, and a fold line that is a connecting portion between the upper outer flaps 17, 18 and the first side plate 3. Folded lines 19, 20, 23, and 24, which are connecting portions between the third breaking means 43 formed on the sewing machines 15 and 16 and made of sewing lines, and the inner flaps 21, 22, 25 and 26 and the second side plates 4 and 5, respectively. 4th breaking means 44 which consists of a sewing machine line formed in the portion which connects upper crease lines 6 and 9 and the 1st breaking means 41 is provided.

  The first breaking means 41 includes, for example, a synthetic resin tape affixed to the back surfaces of the inner flaps 21, 22, 25, 26 and the second side plates 4, 5, and along the length direction of the synthetic resin tape. A predetermined width is formed by perforations formed on both sides thereof. The first breaking means 41 can be broken starting from an H cut 45 formed by an H-shaped cut line provided at the center of the second side plates 4 and 5.

  As shown in FIG. 2, the packaging box 1 has the first side plate 2 as a bottom surface, folds the second side plates 4 and 5 on both sides thereof, and stands up, and the first side plate 3 is bent in parallel with the first side plate 2. A square cylinder-shaped body 51 is formed by bending the adhesive piece 10 continuously provided on the second side plate 4 and bending and bonding it to the first side plate 3. The pair of closing portions 52 and 53 for closing both ends of the body portion 51 are arranged so that the inner flaps 21 and 25 connected to the end edges of the second side plates 4 and 5 are inward as shown in the closing portion 52 as an example. The lower outer flap 13 connected to the edge of the first side plate 2 and the upper outer flap 17 connected to the edge of the first side plate 3 are folded inward to overlap with the inner flaps 21 and 25. It is formed by bonding.

  At this time, the inner flaps 21 and 25 are bent with a gap between them, and are extended inward from the end edges of the second side plates 4 and 5 so that the leading end edges face each other. The lower outer flap 13 extends inward from the edge of the first side plate 2 and is bent along the lower edge of the first breaking means 41, and the upper outer flap 17 is the end of the first side plate 3. It extends inward from the edge and is bent along the upper edge of the first breaking means 41. As a result, the window 54 is formed by the gap between the inner flaps 21 and 25 and the gap between the lower outer flap 13 and the upper outer flap 17, but is provided at the center of the tip of the lower outer flap 13. The projecting portion 27 that is in contact with the tip of the upper outer flap 17 beyond the first breaking means 41 closes the window portion 54. On the other hand, the second breaking means 42 of the inner flaps 21, 25 is arranged at a position along the outer edge of the protruding portion 27.

  Next, with reference to FIG. 3, a method for forming an opening in the closing portion 52 of the packaging box 1 will be described.

  When the opening is formed in the closing portion 52 of the packaging box 1, first, as shown in FIG. 3A, the upper outer flap 17 is peeled off from the inner flaps 21 and 25 and folded along the crease line 15. , 25 are exposed. Next, the upper outer flap 17 is broken and removed by the third breaking means 43 formed on the crease line 15. In a state where the upper outer flap 17 is broken, the inner flaps 21 and 25 are restrained by the protruding portion 27 above the first breaking means 41.

  Next, as shown in FIG. 3B, the upper half of the inner flaps 21 and 25 (the portion above the upper edge of the first breaking means 41) is broken along the second breaking means 42, and the first breaking means is further broken. By breaking along the upper edge of 41, it folds along crease lines 19 and 23. The upper half portions of the inner flaps 21, 25 can be broken along the second breaking means 42, so that the suppression of the protruding portion 27 can be released, and easily broken along the upper edge of the first breaking means 41. be able to. Next, the inner flaps 21 and 25 are broken and removed by the fourth breaking means 44 formed at the portion connecting the folding lines 6 and 9 on the folding lines 19 and 23 and the first breaking means 41.

  As a result, as shown in FIG. 3C, the opening 55 can be formed in the upper half portion above the upper end edge of the first breaking means 41 of the closing portion 52.

  In the present embodiment, the closing portion 52 is described as an example. However, in the packaging box 1, an opening can be formed in the closing portion 53 as in the case of the closing portion 52.

  DESCRIPTION OF SYMBOLS 1 ... Packaging box, 2, 3 ... 1st side plate, 4, 5 ... 2nd side plate, 13, 14 ... Lower outer flap, 17, 18 ... Upper outer flap, 21, 22, 25, 26 ... Inner flap, 27, 28 ... Projection, 41 ... First breaking means, 42 ... Second breaking means, 51 ... Trunk, 52, 53 ... Closure part.

Claims (2)

A quadrangular cylindrical body and a pair of closing parts closing both ends of the body, the body being formed by a pair of first side plates and second side plates arranged alternately, The closing portion extends inwardly from the both end edges of each second side plate, and the inner end flaps extend inwardly from the both end edges of each first side plate, and the inner end flaps each having a gap between the front end edges thereof. In a corrugated paperboard packaging box formed by each outer flap that is polymerized and bonded to the outside,
Comprising first breaking means formed with a predetermined width from each inner flap to each second side plate;
The upper outer flap that closes the upper half of the closing portion is overlapped with the inner flap along the upper edge of the first breaking means, and the lower outer flap that closes the lower half of the closing portion is the tip. Is superposed on the inner flap along the lower edge of the first breaking means, and protrudes toward the tip of the upper outer flap beyond the first breaking means at the center of the tip, thereby closing the gap between the inner flaps. With protrusions,
A packaging box, comprising: a second breaking means provided on the upper half of each inner flap from the tip thereof to the upper edge of the first breaking means along the outer edge of the protruding portion.   2. The packaging box according to claim 1, wherein a third breaking means is provided at a connection portion between the outer flap and the first side plate closing the upper half portion of the closing portion, and the upper half portion of the inner flap is connected to the second side plate. A packaging box comprising a fourth breaking means in the part.