JP5456813B2 - Packaging box - Google Patents

Description

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

  2. Description of the Related Art Conventionally, a body portion formed by a pair of alternately arranged first side plates and second side plates is provided, and a closing portion that closes both ends of the body portion is connected to upper and lower edges of each first side plate. A packaging box is known that is formed by polymerizing and bonding the outer flaps to inner flaps connected to the upper and lower edges of each second side plate (see Patent Document 1).

  This packaging box is generally said to be a wrap-around case, and it is assembled by wrapping the item to be wrapped with each side plate. At that time, the outer flap is bonded to the inner flap, and the item to be packed is stored as soon as the assembly is completed. It becomes a state. For this reason, in general, it is suitable for packaging a large number of packages of a certain shape, such as copy paper and beverage cans, in close contact with each other. The integrated packaging state of the package is firmly maintained.

  By the way, in this packaging box, since the outer flap and the inner flap are relatively firmly bonded, the body portion can be broken so that the outer flap and the inner flap can be opened without performing a peeling operation. It is like that.

  That is, a breaking means such as a synthetic resin cut tape or a broken zipper is provided from the inner flap to the second side plate. An H-shaped cut generally referred to as an H-cut is formed at the central portion of the second side plate as a break start portion of the breaking means, and a pin is cut into a part of the second side plate by pushing a finger into the cut. Is to be formed. The picking piece is picked and pulled, and is broken along the breaking means to open the packaging box so that the body portion is divided.

JP 2006-273359 A

  However, in this type of packaging box, if the article to be packaged in an integrated packaging state is in close contact with the breaking start portion, it is not possible to push a finger or the like into the break of the breaking start portion, There is an inconvenience that the knob cannot be formed smoothly.

  In view of the above points, an object of the present invention is to provide a packaging box that can improve openability without deteriorating the strong packaging state of an article to be packaged.

  The present invention includes a rectangular cylindrical body portion and a pair of closing portions that close both ends of the body portion, and the body portion is formed by a pair of first side plates and second side plates that are alternately arranged. The closed portion is formed by bending the inner flaps connected to the upper and lower end edges of the second side plates inwardly, and the outer flaps connected to the upper and lower end edges of the first side plates inward. In a corrugated cardboard packaging box formed by bending and abutting its tip and polymerizing and adhering to the inner flap, the inner flap polymerized on the outer flap at the tip of one outer flap located at the center of the closed portion A folding part that can be folded in a direction away from the flap is provided, and a knob part that is exposed by folding the folded part and is capable of being picked is formed on a part of the inner flap covered by the folded part. Provide the knob on the second side from the inner flap Characterized in that the fracture starting end of the breaking means provided for.

  The closed portion is in a state where the ends of a pair of outer flaps are abutted. Thereby, the inner flap superposed on the inner surface side of the outer flap is covered with the outer flap. The folded portion is formed at the central portion of the closing portion. The folded portion is folded in a direction away from the inner flap when opening. When the folded portion is folded, the inner flap at a position corresponding to the folded portion is partially exposed. And the said knob | pick part is provided in the part exposed when the folding part is folded up. Since the knob is located at a position corresponding to the fold-up portion, it is located at the central portion of the closing portion similarly to the fold-up portion.

  As a result, since the knob is covered with the folded-up portion of the outer flap, the strength of the packaging box is not lowered even if the knob is formed in a shape that can be easily picked, and the folded-up portion is folded. As long as it is not raised, the package is not exposed from the periphery of the knob.

  As a shape that makes the knob part easy to pick, for example, a gap is formed between the tips of a pair of inner flaps that are polymerized on the inner surface side of the outer flap, and the edge on which the finger is hung in the knob part is the end of the inner flap. It is mentioned that it is located along the edge. Thereby, a finger can be easily hung on the edge of the knob by the thickness of the corrugated cardboard of the inner flap. Alternatively, when the closed portion is formed so that the tips of the pair of inner flaps are in contact with each other, by cutting out the one side edge portion of the knob in a size that can be hooked with a finger, You can easily put your finger on the edge. As described above, the knob portion is located at the central portion of the closing portion and is covered with the folded-up portion of the outer flap, so that the shape can be freely set.

  The packaging box of the present invention configured as described above can be opened as follows. First, the folded portion of the outer flap is folded in a direction away from the inner flap. Thereby, the knob is exposed. Next, a finger is put on the edge of the knob and the knob is picked up. At this time, as described above, since the edge of the knob is formed by the thickness of the cardboard, it is not necessary to push a finger into the inside of the packaging box, and the knob can be easily picked up. For this reason, even if the to-be-packaged object made into the integral packaging state is closely_contact | adhered to the inner surface side of the knob | pick part, operation which picks a knob | pick part can be performed smoothly. Then, by picking and pulling the knob part, the knob part becomes the breaking start end of the breaking means, and the inner flap and the second side plate are broken by the breaking means. As a result, the inner flap and the second side plate are broken and divided, and the packaged item is opened so as to be taken out freely.

  Moreover, since the said folding part is located in the center part of the obstruction | occlusion part, even if the obstruction | occlusion part contacts other things outside, it will be difficult to be in the folded state. Therefore, it is preferable that the fold-up portion is not adhered to the inner flap. Thus, the folding work can be provided in an easy state.

  In the present invention, it is preferable that the outer flap is provided with a notch that allows a part of the folded portion to be hooked. According to this, even if the ends of the pair of outer flaps are in contact with each other in the closed portion, a part of the folded portion can be hooked by the notch portion, and the folded portion is folded when opened. Work becomes easy.

The perspective view of the packaging box which is embodiment of this invention. The expanded view of the packaging box of FIG. The explanatory top view which shows the obstruction | occlusion part of the packaging box of FIG. Explanatory drawing of the opening operation | work of the packaging box of FIG.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the packaging box 1 of the present embodiment includes a square cylindrical body 2 and a pair of closing parts 3 that close both ends of the body 2. In FIG. 1, only one closing portion 3 is shown, and the other closing portion 3 is not shown because it is on the rear side, but both have the same configuration.

  The packaging box 1 is formed of a piece of corrugated paperboard that is punched into a developed shape as shown in a developed state (inner surface side) in FIG.

  In the unfolded state of the packaging box 1, as shown in FIG. 2, each pair of first side plates 4, 5 and second side plates 6, 7 are alternately connected via a crease line, and one first side plate 4 Adhesive pieces 8 are continuously provided on the outer edge of each other via a crease line.

  Outer flaps 9 and 10 are connected to upper and lower end edges of the first side plates 4 and 5 via crease lines. Inner flaps 11 and 12 are connected to upper and lower end edges of the second side plates 6 and 7 via crease lines.

  Both outer flaps 9 connected to the upper and lower end edges of one first side plate 4 have tip end edges 13 formed linearly. The outer flaps 10 connected to the upper and lower edges of the other first side plate 5 are formed with a folded portion 14 at the center of the tip.

  The folded portion 14 is formed in a substantially triangular shape, the first side 15 thereof is located on the same straight line as the distal end edge 16 of the outer flap 10, and the second side 17 is the base end of the outer flap 10 ( It is a breakable line (broken line-shaped cut) that is inclined toward the boundary with the first side plate 5, and the third side 18 extends from the front edge 16 of the outer flap 10 in a direction intersecting the second side 17. It is considered a crease line.

  In addition, a notch 19 is formed at the front end of the outer flap 10, whereby the corner edge 20 where the first side 15 and the second side 17 of the folded-up portion 14 intersect is exposed from the outer flap 10. To do.

  As will be described later, the folded portion 14 can be hooked with the corner edge 20 by the thickness of the cardboard, and when a force is applied in a direction intersecting the plate surface by placing a finger on the corner edge 20, The breakable line of the second side 17 is broken, and the folded portion 14 is folded with respect to the outer flap 10 through the crease line of the third side 18.

  A strip-shaped cut tape 21 made of synthetic resin is attached to the inner surface from each of the second side plates 6 and 7 to the respective inner flaps 11 and 12. The cut tape 21 is provided as a breaking means for breaking the second side plates 6 and 7 and the inner flaps 11 and 12 by tearing them.

  The breaking means may be a so-called zipper with a broken line-like cut, but if a zipper is used, the strength of the second side plates 6, 7 and the inner flaps 11, 12 may be reduced. Therefore, in this embodiment, the cut tape 21 is employed as the breaking means, and the high strength of the second side plates 6 and 7 and the inner flaps 11 and 12 is maintained.

  A knob portion 22 is formed on the inner flap 11 connected to the upper end edge of one second side plate 6 and the inner flap 12 connected to the lower end edge of the other second side plate 7. An end portion of the cut tape 21 is attached to the inner surface side of the knob portion 22, and the knob portion 22 is a break start end by the cut tape 21.

  The knob 22 is formed by a pair of breakable lines (broken lines) located on both sides of the cut tape 21, and the tip 23 is notched in a mountain shape, and the edge due to the thickness of the cardboard is exposed.

  As will be described later, when the finger 22 is put on the tip 23 and a force is applied in a direction intersecting the plate surface, the breakable line 24 is broken and rises through the crease line 25 orthogonal to the cut tape 21. So you can pick this up.

  To assemble the packaging box 1 shown in FIG. 1 from the unfolded state shown in FIG. 2, first, the first side plate 5 located between the second side plates 6 and 7 is used as a bottom plate, and an article to be packaged (not shown) is attached thereto. Place the two side plates 6 and 7 upright. Next, the first side plate 4 on which the adhesive pieces 8 are continuously provided is bent horizontally using the top plate, and the adhesive piece 8 to which the hot melt adhesive is applied is adhered to the outer surface of the end portion of one second side plate 7. Thus, the body part 2 is formed.

  Subsequently, the inner flaps 11 and 12 are bent inward, and the outer flaps 9 and 10 coated with a hot melt adhesive are bent at predetermined positions to be superposed and bonded to the inner flaps 11 and 12. In this way, the closing part 3 is formed, and the packaging box 1 in which the packaging object is accommodated is completed.

  Here, as shown in FIG. 3, in the closed portion 3, a gap is formed between the leading edges 26 and 27 of the inner flaps 11 and 12. This gap is set according to the dimension from the leading edges 26 and 27 of the inner flaps 11 and 12 to the boundary between the second side plates 6 and 7. That is, the sum of the dimensions from the leading edges 26, 27 of the inner flaps 11, 12 to the boundary with the second side plates 6, 7 is the upper edge (or lower edge) of one first side plate 4 (or 5). The inner flaps 11 and 12 are formed so as to be shorter than the length dimension, and thereby a gap is formed between the leading edges 26 and 27 of the inner flaps 11 and 12.

  Further, as shown in FIG. 3, in the closed portion 3, the leading edges 13 and 16 of both outer flaps 9 and 10 are abutted, whereby a gap between the leading edges 26 and 27 of the inner flaps 11 and 12 is formed. It is hidden and the trunk | drum 2 will be in the obstruction | occlusion state. At this time, the folded-up portion 14 of the outer flap 10 is located at a substantially central portion of the closing portion 3. And the knob | pick part 22 of the inner flap 12 (or 11) is located in the inner side corresponding to the folding part 14 of the outer flap 10. FIG. Thereby, the knob | pick part 22 will be in the state hidden by the folding part 14. FIG.

  In this way, since the closed portion 3 is formed, the folded-up portion 14 positioned substantially at the central portion of the closed portion 3 is not inadvertently raised due to contact with other portions or the like. Moreover, since the knob | pick part 22 is hidden inside the folding part 14, the to-be-packaged object is not exposed.

  Moreover, the knob 22 that is the break start end of the cut tape 21 is formed at the tip of the inner flap 12 (or 11), and is provided at the substantially central portion of the closing portion 3 together with the folded portion 14. Thus, it is not necessary to make a cut in the body portion 2 as in the prior art to make a break start end, and the high strength of the packaging box 1 can be maintained.

  Next, the opening operation of the packaging box 1 will be described. As shown in FIG. 3, in the closed portion 3, the corner edge 20 of the folded portion 14 is exposed by the notch portion 19 of the outer flap 10. First, a finger is put on the corner edge 20 of the folded portion 14, and the folded portion 14 is pulled up in a direction away from the inner flaps 11 and 12.

  By doing so, as shown in FIG. 4A, the folding portion 14 is broken through the breakable line of the second side 17 and folded through the crease line of the third side 18. As the folded portion 14 is folded, the knob 22 is exposed.

  Next, a finger is put on the tip 23 of the knob 22 and the knob 22 is pulled up. At this time, since the tip 23 of the knob 22 can be hooked by the thickness of the cardboard, the knob 22 can be picked without performing an operation of pushing the knob 22 in the inner direction of the packaging box 1 with a finger. The part 22 can be pulled up. And the knob | pick part 22 stands | starts up via the crease line 25 orthogonal to the cut tape 21 when the breakable line 24 is broken.

  Subsequently, as shown in FIG. 4 (b), the inner flap 12 (or 11) is torn along the cut tape 21 by picking and pulling the raised knob 22, and the second side plate is not shown. 7 (or 6) is torn. In this manner, the entire circumference of the packaging box 1 is torn with the cut tape 21 so that the packaged item can be opened.

  DESCRIPTION OF SYMBOLS 1 ... Packaging box, 2 ... Body part, 3 ... Closure part, 4, 5 ... 1st side plate, 6, 7 ... 2nd side plate, 9, 10 ... Outer flap, 11, 12 ... Inner flap, 14 ... Folding part , 19 ... Notch part, 21 ... Cut tape (breaking means), 22 ... Picking 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 bends the inner flaps connected to the upper and lower edges of each second side plate inward, and bends the outer flaps connected to the upper and lower edges of each first side plate to the inside. In a corrugated packaging box formed by polymerizing and adhering to the inner flap,
Provided at the tip of one outer flap located at the center of the closed portion is a folding portion that can be folded in a direction away from the inner flap superimposed on the outer flap,
A part of the inner flap covered by the folded part is provided with a knob part that is exposed by folding the folded part and can be manipulated.
A packaging box characterized in that the knob portion is a breaking start end of a breaking means provided from the inner flap to the second side plate.   The packaging box according to claim 1, wherein the outer flap is provided with a notch that allows a part of the folded portion to be fingered.

Images