JP4870596B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box, and more particularly to a packaging box that can be easily disassembled without peeling off a joint.

  In general, tissue paper widely used in homes, offices, and the like is marketed in a form that is stored in the interior space of a rectangular parallelepiped box (hereinafter sometimes referred to as “carton”). When using tissue paper stored in a box in this way, by cutting a perforation (cut-out line for forming an outlet) of a predetermined shape provided on one side of the box (usually the top surface of the box) Forming an outlet. And the tissue paper is pulled out from this outlet and used.

  The carton includes, for example, an upper surface on which an outlet is formed, a bottom surface, and a pair of side surfaces, and a pair of inner flaps are connected to end edges of the pair of side surfaces via folding lines, respectively. ing. Further, a pair of outer flaps are connected to the upper edge and the edge of the bottom face via a folding line. The pair of outer flaps have a wife face formed by joining one end of the outer flap with an adhesive (joining portion) applied in a straight line with a certain width. And the said carton is known that the cutting line for disassembly is formed in one outer flap (for example, patent documents 1, 2).

  When the cutting line for dismantling is formed on the carton, after the stored tissue paper has been used up, the dismantling cutting line formed on the outer flap is pushed through with fingers of both hands, and the outer flap is inserted from the inside with the inserted fingers. Since one outer flap can be peeled off from the other outer flap and / or the inner flap by an operation such as pulling outward, the used carton can be easily disassembled. Therefore, even when the carton is collected, there is an advantage that the collected carton is not bulky because the carton is disassembled.

JP 2002-29580 A JP-A-8-258877

  However, in the carton of Patent Document 1, in order to peel one outer flap from a pair of inner flaps, the joint must be peeled off by strongly pulling the one outer flap. In the carton, since the cutting line for dismantling is formed across the joint, the cutting line for dismantling must be strongly broken. Therefore, for example, there is a problem that it is difficult to dismantle for a weak person such as an elderly person, a child, a disabled person, or a woman. Moreover, if the junction part of the carton of Patent Document 1 is not sufficiently peeled, or if the cutting line for dismantling of the carton of Patent Document 2 is not sufficiently broken, the dismantled carton will not be flat. Therefore, there is a problem that it takes time to make the collected carton flat.

  The present invention has been made in view of the above-described problems of the prior art, and is a packaging box provided with a joining portion made of a so-called single-ply glue or the like, and a cutting line for dismantling For example, even elderly people, children, people with disabilities, and women with weak forces can easily disassemble and dismantle. Since it becomes flat afterward, it aims at providing the packaging box which does not require the effort of collection | recovery.

As a result of intensive studies to solve the above-mentioned problems, the present inventors have as follows. 1) The wife surface is formed by joining a part of the overlapping portion between the upper surface outer flap and the bottom surface outer flap, and 2) outside the upper surface. Do not join the flap and the bottom outer flap to the inner flap, and 3) forming the cutting line for dismantling over the bottom outer flap and the bottom starting from two points on the front edge of the bottom outer flap, 4) The joint that joins part of the overlap between the outer flap on the top surface and the flap on the bottom surface is only in the region (disassembly cut-out portion) surrounded by the cutting line for disassembly and the front edge of the flap on the bottom surface. By forming, when breaking the cutting line for dismantling, it can be set as the structure which does not peel off a junction part, it discovers that the above-mentioned subject can be achieved, and to complete the present invention It came. That is, according to this invention, the packaging box shown below is provided.

[1] Preparative top having an outlet, said upper surface facing the surface at which the bottom of a pair of side surfaces, said top surface of edge through the edge line from extending out the top outer flap, via the edge line from the edge of the bottom surface And a carton blank provided with a pair of inner flaps extended from both end edges of the pair of side surfaces, and folded into a shape having a pair of wife surfaces , A dismantling cut line for disassembling into a flat shape and having a box shape in which an internal space for storing sanitary paper is formed, which is partitioned by the top surface, the bottom surface, the pair of side surfaces, and the pair of wife surfaces . Wherein the end face is formed by joining a part of the overlap between the upper outer flap and the lower outer flap, and the upper outer flap and the lower outer flap. What is the inner flap? The dismantling cut line is formed between the outer bottom flap and the bottom surface starting from two points on the front edge of the bottom outer flap, and is not joined. A joining portion that joins a part of the overlapping portion with the flap is formed only in a region (disassembling cutout portion) surrounded by the dismantling cut line and the front edge of the bottom surface outer flap , A packaging box with a structure that does not tear off the joint when breaking the dismantling score line .

[2] The packaging according to [1], wherein a ratio of a length between two points which are starting points of the dismantling cut line is 55 to 75% with respect to a length of an edge of the bottom surface. box.

[3] The packaging box according to [1] or [2], wherein the dismantling cut line has a substantially V shape.

[4] The packaging box according to any one of [1] to [3], wherein the joint portion is formed in a straight line.

[5] The bottom surface outer flap includes a mating surface joint margin extending from a central portion of the tip edge, and the start point of the dismantling cut line is located at both ends of the mating surface joint margin. The packaging box according to any one of [1] to [4].

  The packaging box of the present invention has an effect that even a weak person such as an elderly person, a child, a disabled person, or a woman can be easily disassembled. Moreover, since it becomes planar after dismantling, there is an effect that it does not take time for collection.

  Hereinafter, the best mode for carrying out the present invention will be described, but the present invention is not limited to the following embodiment. That is, it is understood that modifications and improvements as appropriate to the following embodiments are also within the scope of the present invention based on ordinary knowledge of those skilled in the art without departing from the spirit of the present invention. Should be.

[1] Packaging box:
The packaging box of the present invention, for example, like the carton blank 100 shown in FIG. 5, the ridgeline (upper surface-wife surface ridgeline 35) from the upper surface 2, the bottom surface 4, the pair of side surfaces 6, and the edge of the upper surface 2. It extends from the edge of the bottom surface 4 through the ridgeline (bottom surface-face surface ridgeline 36) , and from both edges of the pair of side surfaces 6 Each carton blank is provided with a pair of inner flaps 26. Specifically, like the packaging box 1 shown in FIG. 1 to FIG. 3, it is bent into a shape having a pair of wife surfaces 8, and is formed by the upper surface 2, the bottom surface 4, the pair of side surfaces 6, and the pair of wife surfaces 8 . This is a packaging box 1 having a box shape in which a partitioned internal space capable of storing sanitary paper is formed and a dissection score line 12 for disassembling in a flat shape . 1 to 3, the end face 8 is formed by joining a part of the overlapping portion between the upper outer flap 28 and the lower outer flap 29, and the upper outer flap 28. The bottom outer flap 19 and the inner flap 26 are not joined. Further, the dismantling cut line 12 is formed between the bottom surface outer flap 29 and the bottom surface 4 with two points on the front edge of the bottom surface outer flap 29 as starting points (starting points a and b). A joining portion 30 that joins a part of the overlapping portion with the outer flap 29 is formed only in a region (disassembling cutout portion) surrounded by the disassembling cut line 12 and the tip edge of the bottom surface outer flap 29. Is.

The “box shape” is a shape having an upper surface, a bottom surface, a pair of side surfaces, and a pair of wife surfaces, and is a shape in which an internal space that is partitioned by these surfaces and can store sanitary paper is formed. . Examples of such shapes include hexahedron shapes such as a rectangular parallelepiped shape and a cubic shape. In these shapes, the upper surface and the bottom surface, the one side surface and the other side surface, and the one wife surface and the other wife surface are arranged in parallel so as to face each other. Of these shapes, a rectangular parallelepiped shape is preferable. For example, the packaging box 1 shown in FIGS. 1 to 3 is an example configured in a rectangular parallelepiped shape having the side surface 6 side as a long side and the end surface 8 side as a short side. In addition, in these shapes, the chamfered ridge portions of the two surfaces are also included in the “box shape” in the present specification.

"Wife surface", joined a top outer flap which extends through the edge line from the edge of the upper surface, a portion of the overlapped portion of the extending out the bottom outer flap via a ridge line from the edge of the bottom surface Formed . For example, a carton blank provided with the upper outer surface flap and the lower outer surface flap can be formed by being bent through the ridgeline of the edge of the upper surface and the ridgeline of the edge of the bottom surface. In addition, the said upper surface outer side flap and / or the said bottom surface outer side flap may equip the front-end | tip with the wife surface joining allowance.

  For example, the packaging box 1 shown in FIGS. 1 to 3 includes an upper surface outer flap 28 that extends from the edge of the upper surface 2 via the ridge line, and a bottom surface that extends from the edge of the bottom surface 4 via the ridge line. The carton blank 100 shown in FIG. 5 provided with the outer flap 29 and the bottom face outer flap 29 having the end face joint 29a at the tip thereof is the ridgeline of the edge of the top surface 2 and the ridgeline of the edge of the bottom surface 4. In this example, the upper surface outer flap 28 and the bottom surface outer flap 29 (face surface joint allowance 29a) are joined to each other to form a pair of face surfaces 8.

[1-1] Cutting line for dismantling:
The packaging box of the present invention is provided with dismantling cut lines formed from the bottom outer flap and the bottom surface starting from two points on the front edge of the bottom outer flap. As long as the cutting line for dismantling is a cutting line that satisfies the above conditions, the shape thereof is not particularly limited, and the shape thereof may be, for example, a semicircular shape, a V shape, a substantially V shape, a U shape, Examples include a U-shape, a convex shape, or a polygonal shape. Among these, a substantially V shape is preferable. The term “substantially V-shaped” means a concept including a shape in which a V-shaped acute apex portion is chamfered in a curved shape. For example, the dismantling cut line 12 formed in the carton blank 100 shown in FIG. Examples of the shape are as follows. Note that “formed across the bottom outer flap and the bottom surface” means that a single score line is formed across the bottom surface and the bottom outer flap extending from the edge of the bottom surface via a ridgeline. Means that The “cut line” refers to a broken line in which several straight lines or curved cuts are continuously formed.

  Further, for example, the carton blank 101 shown in FIG. 6 includes a bottom surface outer flap 29 that extends from the edge of the bottom surface 4 via a ridge line, and the bottom surface outer flap 29 has a mating face joint 29a at the tip. The U-shaped dissection cut line 112 is formed across the outer bottom flap 29 and the bottom surface 4 with both ends of the mating surface joint allowance 29a as starting points a and b. After a predetermined portion of the carton blank 101 is bent, the upper surface outer flap 28 and the lower surface outer flap 29 (face surface joint allowance 29a) are joined by the joint portion 30 to form the pair of face surfaces 8 to form a packaging box. Can be manufactured.

  Further, for example, the carton blank 102 shown in FIG. 7 includes a bottom surface outer flap 29 that extends from the edge of the bottom surface 4 via a ridge line, and the bottom surface outer flap 29 has a mating face joint 29a at the tip. , And a convex dissection cut line 212 is formed across the outer bottom flap 29 and the bottom surface 4 with both ends of the mating surface joint allowance 29a as starting points a and b. After a predetermined portion of the carton blank 102 is bent, the upper surface outer flap 28 and the bottom surface outer flap 29 (face surface joint allowance 29a) are joined by the joint portion 30 to form the pair of face surfaces 8 to form a packaging box. Can be manufactured.

Furthermore, the packaging box of the present invention can be formed, for example, by folding the carton blank 103 shown in FIG. 8 into a box shape. The carton blank 103 shown in FIG. 8 is formed as a substantially U-shaped cutting line 312 for dismantling, and is formed on the surface to be the bottom surface 4 and is a ridge line (upper surface) between the surface to be the bottom surface 4 and the surface to be the one wife surface 8. - outer perforations connecting the two points in the wife surface ridgeline 36) on, and, the outer perforations located inside is formed along the entire outer perforations, its cut part, the cut of the outer perforations ridgeline short inner perforations than parts, the first breaking score lines 350 U-shaped having a double perforations formed by a bottom surface 4 and comprising side and one wife surface 8 become surface This is an example in which a substantially C-shaped second breaking cut line 351 that reaches the tip edges of the pair of bottom bottom flaps 29 starting from the above two points on 36 is formed.

Furthermore, the packaging box of the present invention can be formed, for example, by folding the carton blank 104 shown in FIG. 9 into a box shape. The carton blank 104 shown in FIG. 9 is formed as a substantially V-shaped cutting line 412 for disassembly on a ridge line 36 between a surface that becomes the bottom surface 4 and a surface that becomes the one end surface 8. An outer perforation that connects two points in the outer perforation , and an inner perforation that is formed inside the outer perforation and along the entire outer perforation, the cut portion being shorter than the cut portion of the outer perforation. the two points on the edge line 36 of the first break score line 450 of substantially V-shaped having a double perforation formed, the bottom surface 4 to become plane and one wife surface 8 to become the surface by Is an example in which a substantially C-shaped second breaking cut line 451 that reaches the leading edges of the pair of outer bottom flaps 29 is defined as a starting point (starting points a and b) .

  The first breaking cut line and / or the second breaking cut line of the dismantling cut line are both perforations starting from two points on the ridge line, and the starting points of the two points are The cut portion may not be a cut portion. That is, the cutting line for dismantling may be a perforation in which a cut portion straddling the ridge line is formed, or may be a perforation in which a cut portion is formed while avoiding the ridge line. A perforation in which a cut portion is formed while avoiding the ridgeline is preferable. When the cut portion is formed while avoiding the ridgeline, the dismantling cut line can be easily broken. In general, a stamped rule for easily folding the outer bottom flap along the ridgeline is formed at the position corresponding to the ridgeline. And from a viewpoint that a bottom surface outside flap can be bent more easily, it is preferred to form a cut part so that the above-mentioned ruled line may be avoided.

Note that, for example, FIG. 11, to form a ruffled 136 push position where the ridge line, as dismantling score line 12, to avoid the press ruling 136, the cut portion of the first fracture score line 50 (outer It is the figure which expanded and showed a part of carton blank which formed the cut part of the perforated line and the cut part of the inner perforated line) and the cut part of the 2nd breaking cut line 51. FIG.

There are no particular restrictions on the positions of the two points on the edge of the outer bottom flap, which is the starting point of the dismantling cut line.For example, the center of the edge of the outer bottom flap is biased toward one end point. It is possible to set the position. For example, the packaging box 1 shown in FIG. 1 to FIG. 3 is formed of a carton blank having a bottom surface outer flap 29 having a face joint 29 a extending from the center of the edge, and is substantially V-shaped. This is an example in which the starting points a and b of the dismantling cut line 12 are located at both ends of the mating face joint allowance 29a.

The ratio of the length between two points that are the starting points of the dismantling cut line is preferably 55 to 75%, more preferably 67 to 69% with respect to the length of the edge of the bottom surface. . If it is less than 55%, the region where the joint portion can be formed becomes too small, and there is a possibility that the upper surface outer flap and the bottom surface outer flap cannot be sufficiently bonded. On the other hand, if it exceeds 75%, it is possible to sufficiently join the flaps outside the bottom surface and the flaps outside the top surface, but there is a possibility that the cost increases because the amount of application of the adhesive used for the bonding increases. For example, in the packaging box 1 shown in FIGS. 1 to 3, the ratio of the length D between the starting points a and b of the dismantling cut line 12 is 68% with respect to the length L of the edge of the bottom surface 4. It is an example manufactured by the carton blank 100 shown in FIG.

  Further, for example, when the joining portion is formed in a straight line along the edge of the bottom surface, the ratio of the length in the formation direction of the joining portion is 55 to 75% with respect to the length of the edge of the bottom surface. It is preferable that it is 67 to 69%. If it is less than 55%, the region where the joint portion can be formed becomes too small, and there is a possibility that the upper surface outer flap and the bottom surface outer flap cannot be sufficiently bonded. On the other hand, if it exceeds 75%, it is possible to sufficiently join the flaps outside the bottom surface and the flaps outside the top surface, but there is a possibility that the cost increases because the amount of application of the adhesive used for the bonding increases.

  The breaking line for dismantling is a breaking line for opening which is called a zipper in the packaging industry and is bent into a bowl shape (refer to page 281 of the well-known and commonly used techniques in the packaging industry, patent dated December 20, 1978) (Issued by the Agency) or double perforations.

  In particular, when the dismantling cut line is formed by a double perforation, the double perforation is constituted by an outer perforation and an inner perforation positioned inside the outer perforation, and the inner perforation. Is preferably formed such that the cut portion is shorter than the cut portion of the outer perforation. With such a configuration, for example, even a weak person such as an elderly person, a child, a disabled person, or a woman can easily break the cut line (perforation), and the user's Regardless of the pushing position, the cutting line can be broken stably and cleanly.

  As described above, the cutting line for dismantling facilitates the separation of the end face and the bottom surface when disassembling the packaging box. That is, if the packaging box is disassembled according to the cutting line for dismantling, the packaging box can be easily developed in a planar shape. And when breaking the cutting line for dismantling, the packaging box can be dismantled more easily by adopting a structure that does not peel off the joint (for example, glue). The packaging box of the present invention is particularly effective when the joints are formed in a straight line (so-called “single-strike”). For example, even a weak person such as an elderly person, a child, a disabled person, or a woman can be dismantled more easily.

  The cutting line for dismantling of the packaging box of the present invention may be formed over the upper outer flap and the upper surface, but by forming over the bottom outer flap and the bottom surface, the packaging box can be used. There is no risk that the dismantling cut line is sometimes broken by mistake, and there is an advantage that the appearance is good.

Here, the above-mentioned wife surface is a surface formed by being joined by a joint portion made of an adhesive such as glue used for joining the upper outer flap and the lower outer flap. This joining part joins a part of the overlapping part of the top surface outer flap and the bottom surface outer flap, and is formed only in the region surrounded by the cutting line for dismantling and the tip edge of the bottom surface outer flap. Is. That is, the joining portion is a part of the overlapping portion of the outer flap on the upper surface and the outer flap on the bottom surface, and is formed in a region surrounded by the cutting line for dismantling and the leading edge of the outer flap on the bottom surface. is there. And as long as the said junction part is formed in the said part, there is no restriction | limiting in particular in the shape. For example, it can be a straight line, a circular arc, a broken line, or the like. Among these, it is preferable to use a straight line. For example, the packaging box 1 shown in FIGS. 1 to 3 is an example in which the joint portion 30 is formed in a straight line. Moreover, for example, the packaging box 110 shown in FIG. 4 is an example in which the joining portion 130 is formed in a broken line shape.

The packaging box according to the present invention is characterized in that the joining portion and the cutting line for dismantling are configured as described above. In other words, the joint portion is a part of the overlapping portion of the outer flap on the upper surface and the outer flap on the bottom surface, and is formed in a region surrounded by the cutting line for dismantling and the front edge of the outer flap on the bottom surface. It is. In other words, the cutting line for dismantling is formed such that its starting point is located on the side edge side of the bottom surface outer flap than the two points on the joint on the most side edge side of the bottom surface outer flap. . For example, the packaging box 1 shown in FIG. 3 includes a joining portion 30 formed in a straight line so as to be orthogonal to the side edge f of the bottom surface outer flap 29, and the starting points a and b of the dismantling cut line 12 are in a straight line. This is an example in which it is formed on the side edge f side of the bottom surface outer flap 29 with respect to both ends c and d of the joint portion 30 in the shape of a ring.

As described above, the joint portion is formed in a part of the overlapping portion between the upper surface outer flap and the bottom surface outer flap, and is surrounded by the dismantling cut line and the tip edge of the bottom surface outer flap ( It is necessary to be formed only in the dismantling cutout part) .

  By the way, in the conventional packaging box, since the cutting line for dismantling is formed across the joint part, in order to break the cutting line for dismantling, it is necessary to peel a part of the joint part. There was a problem that it was difficult to dismantle for weak people such as the elderly, children, people with disabilities and women.

[1-2] Cut line for taking out the outlet:
The “takeout forming cut line” is a cut line (perforation) formed so as to coincide with the outer peripheral shape of the sanitary paper takeout opening. The user can form the take-out port by breaking the cut line, and can take out the sanitary paper from the take-out port.

  There is no restriction | limiting in particular about the outer peripheral shape of the taking-out opening of a sanitary paper, What is necessary is just to select suitably according to the shape of a packaging box or a sanitary paper. However, since many rectangular packaging boxes are used, the shape of the outlet is preferably a horizontally long shape along the longitudinal direction of the packaging box. Accordingly, examples of the outer peripheral shape of the outlet include a substantially rectangular shape, a substantially oval shape, an oval shape, a rhombus shape, and a polygonal shape. For example, the packaging box 1 shown in FIG. 1 is an example in which a substantially rectangular outlet forming cut line 11 is formed.

  The cut-out line for forming the outlet is usually formed on the upper surface 2 like the packaging box 1 shown in FIG. 1, but there is no particular limitation. For example, it may be formed on the bottom surface or may be formed on another surface. Further, the outlet forming cut line does not have to be formed on only one surface, and may be formed on two or more surfaces (for example, an upper surface and a bottom surface).

  In addition, in the part (part which becomes a cut piece) surrounded by the cut line for forming the outlet, the cut line for peeling is formed so as to connect the two points of the cut line for forming the outlet. Also good. By forming such a cut line, there is an advantage that the cut piece can be easily peeled off. For example, the packaging box 1 shown in FIG. 1 is an example in which a pair of substantially U-shaped tearing lines 11 a are formed on the end side of the substantially rectangular outlet forming cutting line 11. is there.

[1-3] Push-up piece forming cut line:
Moreover, in the packaging box of this invention, in order to form a pair of push-up piece on the bottom face, the cut-out line for push-up piece formation can also be formed. This push-up piece forming cut line is a perforation for forming a pair of push-up pieces by pressing and breaking when the remaining amount of sanitary paper stored in the packaging box is reduced. When the push-up piece is bent inside the box, the sanitary paper inside the box is pushed up to the upper surface side, so that it is possible to stably pop up from the outlet on the upper surface to the last sheet of sanitary paper.

  The push-up piece forming cut line is not particularly limited in shape, arrangement, or the like as long as it satisfies the above conditions. Examples of the shape include a U-shape, a U-shape, a substantially U-shape, and a polygonal shape. It can be. Moreover, the position of the bottom face of the packaging box can be a center part, a position biased toward the end face, a position biased toward the side face, or the like. Further, for example, in the case of a pair of U-shaped push-up piece forming cut lines, the pair of U-shaped push-up piece forming cut lines are arranged with their openings directed in either direction. May be. Specifically, the openings may be arranged facing each other, the openings may be arranged facing the wife surfaces close to each other, or the openings may be arranged facing the same one wife surface. Also good. For example, the packaging box 1 shown in FIG. 2 has a U-shaped push-up piece forming cut line in which the openings face each other at the center of the bottom surface 4 and the openings face the wife surface 8. 13 is an example in which a pair is formed.

  Note that the push ruler can be formed so as to connect the open ends of the push-up piece forming cut lines. By forming the stamped rule, there is an advantage that a pair of push-up pieces can be easily folded inside the packaging box according to the stamped rule (based on the stamped ruled line). The packaging box 1 shown in FIG. 2 is an example in which a push ruler 52 is formed so as to connect the open ends g and h of the U-shaped push-up piece forming cut line 13.

  The packaging box of the present invention is a film material (so-called so-called slits for taking out sanitary paper, which is arranged so as to cover the above-mentioned outlet forming cut line (outlet) from the inside of the box. , “Window film”), or a so-called filmless packaging box without a window film.

  In the packaging box of the present invention, an internal space defined by an upper surface, a bottom surface, a pair of side surfaces, and the pair of wife surfaces is formed. This internal space is, for example, a space for storing sanitary paper. When sanitary paper is stored in this internal space, there are no particular restrictions on the type of the paper. For example, tissue paper (what is called facial paper, decorative paper, etc.), dust paper, paper towel (kitchen paper, etc.), toilet paper (roll And disposable paper such as Watting (for example, paper pulp technology handbook 5th edition, see page 459, published on January 30, 1992, edited and published by the Paper Pulp Technology Association). it can.

  Among these, a tissue paper bundle is preferable, and this tissue paper bundle includes, for example, a plurality of tissue papers by folding one tissue paper and folding another tissue paper in a folded portion. Are continuously laminated. Since the tissue paper of such a laminated structure takes out the uppermost tissue paper, a part of the tissue paper of the next layer sandwiched between the paper protrudes from the outlet (so-called “pop-up method”). There is an advantage that tissue paper can be easily taken out.

  There is no restriction | limiting in particular about the material which comprises the packaging box of this invention. However, a paper material such as cardboard is preferably used as a constituent material for the convenience of forming a sheet-like material into a box shape by bending. Generally, as these paper materials, for example, those produced using wood pulp, waste paper, etc. as raw materials can be suitably used.

  The packaging box 1 shown in FIGS. 1 to 3 can be disassembled by the following method. First, when the inner portion (area) of the dismantling cut line 12 is pressed with a thumb or the like and the dismantling cut line 12 is pushed through, the packaging box 1 is in a state shown in FIG. That is, the bottom surface 4 and the wife surface 8 can be cut. Then, when the upper surface 2 and the bottom surface 4 are put together, the packaging box 1 can be easily disassembled into a state where the packaging box 1 is developed in a planar shape.

[2] Manufacturing method of packaging box:
The packaging box of the present invention can be manufactured, for example, by the following manufacturing method. First, by punching out a paper material or the like, the upper surface 2, the bottom surface 4, and a pair of side surfaces 6 are provided, and extended from the edge of the upper surface 2 via a ridge line (upper surface-wife surface ridge line 35). A top surface outer flap 28 and a bottom surface outer flap 29 having a wife surface joint allowance 29a extending from the edge of the bottom surface 4 via a ridge line (bottom surface-wife surface ridge line 36) and extending from the center of the edge. If, carton blank shown in Figure 5 comprises a side bonding margins 32 extending from one side edge of the bottom surface 4, the inner flap 26 of each pair (two pairs) that extends from the edge of the pair of side surfaces 6 100 is prepared. Next, with the both ends of the mating surface joint margin 29a of the bottom outer flap 29 as starting points (starting points a and b) , a substantially V-shaped cutting line 12 for dismantling over the bottom outer flap 29 and the bottom surface 4 is formed, A U-shaped push-up piece forming cut line 13 having openings facing each other is formed. Further, an ellipse-shaped cut-out line 11 is formed on the surface to be the upper surface 2, and a window film is pasted so as to cover the cut-out line 11 for forming the cut-out. In addition, there is no restriction | limiting in particular in the formation order of the cutting line 11 for taking-out opening, the cutting line 12 for dismantling, and the cutting line 13 for raising piece formation.

Thereafter, the carton blank 100 is bent along a fold line, the side surface 6 and the side surface joining margin 32 of the bottom surface 4 are overlapped, and the overlapping portion is bonded with an adhesive, whereby the end surface 8 side is opened. To do. Next, for example, a sanitary paper bundle in which sanitary papers are stacked is loaded into the internal space of the rectangular carton blank. After loading, the rectangular carton blank is folded along the folding line so that each pair (two pairs) of inner flaps 26 is on the inside, and then the top surface-face surface ridge line 35 and the bottom surface-face surface ridge line 36 are formed. The upper surface outer flap 28 and the bottom surface outer flap 29 (wife surface joint allowance 29a) are overlapped. After that, a portion (a wife interview) that is a part of the overlapping portion of the outer top flap 28 and the bottom outer flap 29 and that is within the region surrounded by the dismantling cut line 12 and the front edge of the bottom outer flap 29. A pair of end faces 8 can be formed by applying an adhesive or the like to the joint 29a) in a straight line to form the packaging box 1 of the present invention.

  The packaging box of the present invention can be suitably used as a packaging box for storing sanitary paper such as paper towels such as tissue paper and kitchen paper, sheet-like toilet paper, and cotton (paper cotton).

It is the perspective view which shows one Embodiment of the packaging box of this invention, and is the figure which saw through partially. It is another perspective view which shows one Embodiment of the packaging box of this invention, and is the figure which saw through partially. It is a partial top view which shows one Embodiment of the packaging box of this invention, and is a figure which shows the state which looked at the wife surface from the back surface side. It is a partial top view which shows another embodiment of the packaging box of this invention, and is a figure which shows the state which looked at the wife surface from the back surface side. It is a figure which shows an example of one Embodiment of the packaging box of this invention, and is a development view of the state of the carton blank before assembling the packaging box. It is a figure which shows an example of another embodiment of the packaging box of this invention, and is a development view of the state of the carton blank before assembling the packaging box. It is a figure which shows an example of another embodiment of the packaging box of this invention, and is a development view of the state of the carton blank before assembling the packaging box. It is a figure which shows an example of another embodiment of the packaging box of this invention, and is a development view of the state of the carton blank before assembling the packaging box. It is a figure which shows an example of another embodiment of the packaging box of this invention, and is a development view of the state of the carton blank before assembling the packaging box. It is a perspective view which shows the process of disassembling the packaging box of this invention. It is the elements on larger scale of the cutting line for dismantling of the carton blank shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,110: Packaging box, 2: Upper surface, 4: Bottom surface, 6: Side surface, 8: Wife surface, 11: Cut-out line for taking out outlet, 11a: Cut-out line for peeling , 12 , 112 , 212 , 312, 412 : dismantling cut line, 13: push-up piece forming cut line, 19: bottom outer flap, 26: inner flap, 28: top outer flap, 29: bottom outer flap, 29a: wife surface joint allowance, 30, 130: Joint part, 32: Side joint allowance, 35: Top surface-face surface ridge line, 36: Bottom surface-face surface ridge line, 50 , 350 , 450: First fracture cut line, 51, 351, 451: First Second breaking cut line, 52: Push rule, 100, 101, 102 , 103, 104 : Carton blank, 136: Push rule , D, L: Length, a, b: Starting point, c, d: Both ends, f : Side edge, g, h: open end .

Claims (5)

Preparative top having an outlet, said top surface facing a is bottom, a pair of side surfaces, said top surface of edge through the edge line from extending out the top outer flap, extending through the edge line from the edge of the bottom surface The carton blank provided with each pair of inner flaps extended from both end edges of the paired side surface outer flaps and the pair of side surfaces is configured to be bent into a shape having a pair of wife surfaces ,
Dismantling cut for disassembling into a flat shape and having a box shape in which an internal space capable of storing sanitary paper is defined by the top surface, the bottom surface, the pair of side surfaces, and the pair of wife surfaces . A packaging box formed with lines,
The wife surface is formed by joining a part of the overlapping portion between the upper surface outer flap and the bottom surface outer flap,
The top outer flap and the bottom outer flap are not joined to the inner flap,
The dismantling cut line is formed across the bottom outer flap and the bottom surface starting from two points on the tip edge of the bottom outer flap,
The junction joining the portion of the overlapping portion of the upper surface outer flap and said bottom outer flap has only been formed in the enclosed dismantling score line and to the leading edge of the bottom outer flap region ,
A packaging box having a structure that does not peel off the joint when the breaking line for dismantling is broken .   The packaging box according to claim 1, wherein a ratio of a length between two points which are starting points of the dismantling cut line is 55 to 75% with respect to a length of an edge of the bottom surface.   The packaging box according to claim 1 or 2, wherein a shape of the cutting line for dismantling is substantially V-shaped.   The packaging box according to any one of claims 1 to 3, wherein the joint portion is formed in a straight line. The bottom outer flap is provided with a wife surface bonding margins extending from the central portion of the leading edge, claim origin of the disassembling score lines are located at both side ends of the wife surface bonding margins 1-4 The packaging box according to any one of the above.

Images