JP2011016571A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fine blank pieces from being separated at the time of unsealing, and in addition, to provide a re-sealing function for temporarily housing a commodity after having been unsealed, and also, to keep the folded state after the commodity has been taken out in a manner not to be opened.SOLUTION: Cutting assisting lines 11 and 13 which are easy to be cut are installed between both side sections 7b and 7b of an end external flap 7, and the central section 7a and an upper panel 2. At the same time, the both side sections 7b and 7b alone are bonded to end internal flaps 8 and 9, and the central sections 7a of the end external flaps 7 are overlapped with the upper panel 2, and at the same time, are not bonded to the end internal flaps 8 and 9. A cutting assisting line 12 which is easy to be cut is installed between both side sections 6b and 6b of an end external flap 6 and the central section 6a and a bottom panel 1. At the same time, the both side sections 6b and 6b alone are bonded to the end internal flaps 8 and 9, and the central section 6a of the end external flap 6 is overlapped with the bottom panel 1, and at the same time, is not bonded to the end internal flaps 8 and 9.

Description

  The present invention relates to a packaging box that is made by punching and bending a blank from a raw material sheet made of a corrugated cardboard sheet or the like, and stores and packages a product such as a beverage bottle, and functions as a packaging box for product distribution The present invention relates to a packaging box having ease of opening for taking out a product in a retail store or the like, ease of arrangement in which fine blank scraps are not separated, and the like.

  A packaging box (carton) for packing products stored in bottles, cans, boxes, and the like is made by punching a blank from a raw material sheet made of a corrugated cardboard sheet or the like and bending it. Packaging boxes packed with products are stacked and transported from a manufacturing site or temporary stock to a sales location such as wholesale or retail using transportation. Accordingly, such a packaging box is required to store and protect the product for packaging of the product and to be able to withstand cargo handling such as transportation, loading and unloading by means of transportation in that state. .

  In today's Japan, a large proportion of potable water shipped from factories is made from polyethylene terephthalate (PET), a type of synthetic resin (plastic) known as “PET bottle”. They are sold in plastic bottles. These are stored in a packaging box in units of a plurality of units and shipped directly or indirectly from a factory to a retail store. At retail stores, the packaging box is unpacked and the beverage in the container is taken out from the box and displayed at the store for sale. Some of the bottled water is sold in some cases, but it is unpacked when consumed at the latest.

  Although some of the packaging containers after unpacking may be reused, a large percentage of the used packaging containers are collected as used paper and recycled as recycled paper raw material for recycled corrugated board. Used. However, the problem is the small corrugated board pieces that come out when unpacking. Most of such waste pieces are collected as waste paper without being collected. Therefore, in order to reduce the effort at the time of opening the packaging container and increase the recovery rate of the used packaging container as used paper, it is desirable that the corrugated board pieces, so-called scrap pieces, which are as fine as possible are not separated at the time of unpacking. .

  The following Patent Document 1 (Japanese Patent Application Laid-Open No. 2007-46145) describes a general packaging box devised so as to be easily opened by releasing the adhesion of a flap on the end face of a rectangular parallelepiped box. Yes. This type of packaging box has an inner end flap that extends from a pair of opposing side panels that form the side of the box and an outer end flap that extends from the top and bottom panels of the box. The end surfaces are overlapped to close the end surfaces, and the overlapped inner end flap and outer end flap are bonded at the overlapped portion to seal the end surfaces. In such a packaging box, when the end face of the box is opened, a procedure for peeling the bonded outer end flap from the inner end flap is required, and a force is required for opening. Moreover, when the outer end flap is peeled off from the inner end flap, a force is often applied to break a part of the flap, and so-called debris is likely to be generated.

  In the following Patent Document 2 (Japanese Patent Laid-Open No. 2007-55630), Patent Document 3 (Japanese Patent Laid-Open No. 2004-292523), and Patent Document 4 (Japanese Patent Laid-Open No. 2003-165533), the fines previously placed in the blank are described. There is described a packaging box in which a strip-shaped portion that is easy to cut is formed by a row of cuts, and when the box is opened, the band-shaped portion is separated and opened. Such a packaging box can open the packaging box with a relatively small force, but has the disadvantage that the band-like portion is generated as scrap.

  In the following Patent Document 5 (Japanese Patent Laid-Open No. 2002-370728) and Patent Document 6 (Japanese Patent Laid-Open No. 2002-166927), the tensile strength is higher than the blank inside the box instead of the row of fine cuts. A packaging box is described in which a tape is pasted and the box is opened along with the tape when the box is opened. Although such a packaging box can open the packaging box with a comparatively small force, there is a disadvantage that a portion cut along the tape is also generated as a scrap.

JP 2009-46145 A JP 2007-55630 A JP 2004-292203 A JP 2003-165533 A JP 2002-370728 A JP 2002-166927 A

  In view of the problems in the conventional packaging box, the present invention has a function as a packaging box for goods distribution, ease of opening for taking out the goods at a retail store, etc., and a fine blank piece. In addition to easy separation that does not separate, the packaging has a resealing function to temporarily store the product after opening, and a function to hold the folded state after taking out the product so as not to open The purpose is to provide boxes.

  In the present invention, in order to achieve the above-described object, a cutting auxiliary line that facilitates cutting from both the bottom panel and the top panel is provided on both sides of the outer end flap that is superimposed on the inner end flap at the end face of the rectangular parallelepiped box. At the same time, only the both side portions are bonded to the inner end flap, and the central portion between the both side portions is not bonded to the inner end flap, and the bottom panel and the upper panel are connected without being separated.

  That is, the packaging box according to the present invention basically includes a pair of end flaps 8 and 9 extending from a pair of opposing side panels 3 and 4 that form the side surfaces of a rectangular parallelepiped box. Folded to the end face side, closed both sides of the end face, and bent the outer end flaps 6 and 7 respectively extending from the bottom panel 1 and the upper panel 2 forming the bottom face and the top face of the box respectively to the end face side of the box. The box has a structure in which the end face of the box is closed by overlapping the inner flaps 8 and 9 and bonding them.

  On the upper side of such a packaging box, there are provided auxiliary cutting lines 11 and 13 that are easy to cut between both side portions 7b and 7b of the outer end flap 7 and the central portion 7a and the upper panel 2, and these both side portions. Only 7b and 7b are bonded to the inner end flaps 8 and 9, and the center part 7a of the outer end flaps 7 and the upper panel 2 are connected without providing a cutting auxiliary line. , 9 is not bonded.

  On the other hand, on the upper side of the packaging box, there are provided auxiliary cutting lines 12 between the side portions 6b, 6b of the outer end flap 6 and the central portion 6a and the bottom panel 1, and these side portions 6b, 6b. Are attached to the inner end flaps 8 and 9 without connecting auxiliary cutting lines between the central part 6a of the outer end flaps 6 and the bottom panel 1, and the central part 6a is not connected to the inner end flaps 8 and 9. Adhesive.

  When opening the end face of such a packaging box, particularly on the upper side, both side portions 7b, 7b of the outer end flap 7 are separated from the central portion 7a and the upper panel 2 along the auxiliary cutting lines 11, 13. In this state, both side portions 7b, 7b of the outer end flap 7 are not separated from the box while being adhered to the inner end flaps 8, 9. Further, the central portion 7a of the outer end flap 7 is not cut off from the box because it remains connected to the upper panel 2 without being cut.

  Also on the lower side of the packaging box, both side portions 6 b and 6 b of the outer end flap 6 are separated from the center portion 6 a and the bottom panel 1 along the cutting auxiliary line 12. In this state, both side portions 6b, 6b of the outer end flap 6 are not separated from the box while being adhered to the inner end flaps 8, 9. Further, the central portion 6a of the outer end flap 6 is not cut off from the box because it remains connected to the bottom panel 1 without being cut.

  Thus, when the end face of the box is opened and the product in the box is taken out from the opened end face, the central portion 7a of the outer end flap 7 connected to the upper panel 2 is extended from the upper panel 2. Further, the central portion 6 a of the outer end flap 6 connected to the bottom panel 1 also extends from the bottom panel 1. The center portions 6a and 7a of the outer end flaps 6 and 7 have a function of guiding the product when taking out the product in the box.

  Further, the central portion 7a of the upper end outer flap 7 has a tab 17 at the tip, and the tab 17 is inserted at a position corresponding to the tab 17 of the inner end flaps 8 and 9 when the end face of the box is closed. It has a possible notch 15. Similarly, the central portion 6a of the lower end outer flap 6 has a tab 21 at the tip, and the tab 21 is located at a position corresponding to the tab 21 of the inner end flaps 8 and 9 when the end face of the box is closed. Has a cutout portion 19 into which can be inserted.

  By doing this, when the end face of the box is closed, the tabs 17 and 21 at the tips of the center portions 6a and 7a of the outer end flaps 6 and 7 are inserted into the notches 15 and the cutout portions 19 of the inner end flaps 8 and 9. Thus, the inner end flaps 8 and 9 can be temporarily fixed so as not to open at the central portions 6 a and 7 a of the outer end flaps 6 and 7. That is, it can be resealed temporarily.

Further, when the box is unpacked and folded, the end flaps 8 and 9 are provided with cutout portions 19 that can be inserted into the notches 15 provided in the other end flaps 8 and 9.
In this way, when the used packaging box is folded and collected as used paper, the folded state is temporarily fixed and is difficult to open. This makes it easier to carry waste paper together.

  As described above, in the packaging box according to the present invention, the end face can be easily opened by cutting the outer end flaps 6 and 7 along the auxiliary cutting lines 11, 12 and 13 which are easy to cut. Moreover, both side portions 6b7b of the cut outer end flaps 6 and 7 are adhered to the inner end flaps 8 and 9 extending from the side panels 3 and 4 and are not separated. Further, the central portions 6a and 7a of the outer end flaps 6 and 7 are also connected to the bottom panel 1 and the upper panel 2 and are not separated. For this reason, a fine waste piece does not arise by cutting at the time of opening.

Further, when the end face of the box is closed, it is possible to insert the tabs 17 and 21 at the ends of the central portions 6a and 7a of the outer end flaps 6 and 7 into the notches 15 and the cutout portions 19 of the inner end flaps 8 and 9. In this case, temporary fixing for resealing after opening the end face is also possible.
In addition, when the box is unpacked and folded, the inner end flaps 8 and 9 have tab-shaped cutout portions 19 that can be inserted into the notches 15 provided in the different end inner flaps 8 and 9. Temporary fixing of already folded boxes is also possible.

FIG. 1 is a developed view showing an embodiment of a packaging box according to the present invention. FIG. 2 is an enlarged view of part A and part B of FIG. 1 showing an embodiment of the packaging box according to the present invention. FIG. 3 is a closed perspective view showing an embodiment of the packaging box according to the present invention. FIG. 4 is a perspective view showing an embodiment of the packaging box according to the present invention with the end face opened. FIG. 5 is a perspective view showing an embodiment of the packaging box according to the present invention in a state where the end face once opened is resealed. FIG. 6 is a perspective view showing a state in which a used box showing one embodiment of the packaging box according to the present invention is folded.

In the present invention, it is possible to easily open the end face of the rectangular parallelepiped box by cutting the outer end flap along the cutting auxiliary line that is easy to cut, while the scrap pieces when cut are not separated from the box. The inner edge flaps and the upper and lower panels remain attached.
Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an example of a development view of a box. As the blanks for these boxes, corrugated cardboard plates in which a core made of a corrugated sheet made of paper is laminated with a liner are generally used. A blank before being assembled as a box is completed by punching the corrugated board as shown by a solid line in FIG. 1, making a cut, and making a fold line as shown by a thin broken line.

  First, the box blank shown in FIG. 1 will be described. The lines indicated by solid lines in FIG. 1 are the blank outline and the cutting auxiliary line. A broken line shows a perforation. Moreover, the line shown with the thin broken line is a broken line. The blank of the box shown in FIG. 1 shows the inner surface side of the box, and all the folding lines are valley-folded with respect to the paper surface of FIG. In FIG. 1, the hatched portion on the blank shows a portion where the core of the blank is crushed with a rolling roller such as cork and is made thinner than the other portions.

  A rectangular bottom panel 1 surrounded on all sides by a polygonal line is a part for forming the bottom surface of the box. Side panels 3 and 4 to be opposed to each other as side surfaces of a rectangular parallelepiped box from a pair of long side side folding lines. Each is extended. The width of the side panels 3, 4, that is, the left and right dimensions in FIG. Further, the heights of the side panels 3 and 4, that is, the upper and lower dimensions in FIG. An adhesive flap 5 extends from one side panel 3 via a broken line. An upper panel 2 is extended from the other side panel 4 so as to face the bottom panel 2, and this bottom panel 2 is a portion for forming the upper surface of a rectangular parallelepiped box.

  The bottom panel 1 has a planar dimension that allows an appropriate number of products to be arranged so as not to move. When a partition panel or the like is inserted into the box, a plane dimension that allows for the thickness of the partition panel is required. The side panels 3 and 4 have a height sufficient to accommodate those commodities. If the products are stacked in a packaging box, the side panels 3 and 4 require a height corresponding to the height of the product.

  Outer end flaps 6, 6 extend from the fold line on the short side of the bottom panel 1. The height of the outer end flaps 6, 6, that is, the left and right dimensions in FIG. 1 is about 1/3 of the side panels 3, 4 or slightly lower. The width of the side panels 3, 4, that is, the vertical dimension in FIG. 1 is slightly narrower than the length of the short side of the bottom panel 1.

  The outer end flaps 6 and 6 are divided into a central portion 6a and 6a and both side portions 6b, 6b, 6b and 6b, and between these central portions 6a and 6a and both side portions 6b, 6b, 6b and 6b. Are provided with auxiliary cutting lines 12, 12, 12, 12 formed by rows of fine L-shaped cutting lines so that they can be easily cut and separated. Further, the auxiliary cutting lines 12, 12, 12, 12 are also formed so as to easily cut the both side portions 6 b, 6 b, 6 b, 6 b of the outer end flaps 6, 6 from the bottom panel 1. That is, the cutting auxiliary lines 12, 12, 12, 12 are curved on both sides on the boundary side with the bottom panel 1 and extend to both ends of the boundary line between the outer end flaps 6, 6 and the bottom panel 1. The central part between the cutting auxiliary lines 12, 12, 12, 12 at the boundary line between the outer end flaps 6, 6 and the bottom panel 1 is a broken line.

  FIG. 2A is an enlarged view of a portion A in FIG. 1 and shows a portion around the central portions 6a and 6a of the outer end flaps 6 and 6. FIG. No cutting auxiliary line is provided between the center portions 6a, 6a of the outer end flaps 6, 6 and the bottom panel 1 so as to cut the both at the portion, and both are connected via a broken line. Yes. The front ends of the central portions 6a and 6a are cut into rounded corners, a fold line is formed on the base side, and the front ends of the fold lines are tabs 21 and 21, respectively.

The upper panel 2 to be opposed to the bottom panel 1 as a rectangular parallelepiped box is connected to the upper side of one side panel 4 via a broken line in FIG.
Outer end flaps 7, 7 extend from the fold line on the short side of the upper panel 2. The heights of the outer end flaps 7 and 7, that is, the left and right dimensions in FIG. 1, are about 1/3 of the side panels 3 and 4 or slightly lower. The widths of the outer end flaps 7, 7, that is, the upper and lower dimensions in FIG. 1 are slightly narrower than the length of the short side of the upper panel 2.

  This outer end flap 7 is divided into a central part 7a, 7a and both side parts 7b, 7b, 7b, 7b. Between this central part 7a, 7a and both side parts 7b, 7b, 7b, 7b, Cutting auxiliary lines 11 and 11 formed by rows of fine L-shaped cutting lines are provided so that they can be easily cut. Furthermore, the tip of these auxiliary cutting lines 11, 11 is a fold line at the boundary with the upper panel 2 so that both side portions 7 b, 7 b, 7 b, 7 b of the outer end flaps 7, 7 can be easily cut between the upper panel 2. It is connected with the broken lines 13 and 13 formed by the row | line | column of the L-shaped cutting line on both sides.

  FIG. 2B is an enlarged view of a portion B in FIG. 1 and shows a portion around the central portions 7a and 7a of the outer end flaps 7 and 7. FIG. The center portions 7a, 7a of the outer end flaps 7, 7 are not provided with a cutting auxiliary line for cutting with the upper panel 2, and are connected via a broken line. A tab 17 cut out by an oval cutting line having a semicircular arc shape on both sides is connected to the tips of the central portions 7a and 7a via a broken line. A fold line is also provided at the widest middle portion of the tab 17. A cutting line 24 is provided at the tip of the tab 17 from the center position thereof toward the center position of the front end sides of the outer end flaps 7, 7.

  As shown in FIG. 1, end flaps 8, 8, 9, 9 are extended from the fold lines on both sides of the side panels 3, 4, respectively. The heights of the inner end flaps 8, 8, 9, 9 are the widths of the bottom panel 1 and the upper panel 2 in FIG. 1, that is, the end flaps 6 of the bottom panel 1 and the upper panel 2 in FIG. , 6 is slightly less than half of the upper and lower dimensions. Further, the widths of the inner end flaps 8, 8, 9, and 9, that is, the upper and lower dimensions in FIG.

  On both sides of the end flaps 8, 8, 9, 9 on both sides, the cutting start points cut by a pair of short cutting lines in the height direction, that is, slightly lower than the middle height in the vertical direction in FIG. Tabs 18 and 18 are provided. Further, a resin tape having a higher tensile strength than the blank so as to pass straight through the inner end flaps 8, 8, 9, 9 and the side panels 3, 4 between the cut start point tabs 18, 18 on both sides, etc. The cut tapes 23 and 23 which consist of are affixed. The cut tapes 23 and 23 are raised by hand by picking one of the cut start tabs 18 and 18 from the start, and the cut tapes 23 and 23 are arranged on the side of the end flaps 8, 8, 9 and 9 on both sides. By pulling strongly over the panels 3 and 4, the end flaps 8, 8, 9 and 9 and the side panels 3 and 4 can be easily cut at the position and separated into the upper and lower sides.

  The inner end flaps 8, 8, 9 and 9 are formed in a laterally convex shape in FIG. 1 at positions lower than the cut start tabs 18 and 18 on both sides of the end flaps 8, 8, 9, 9 on both sides. Cut-out portions 19 and 19 are provided. The tab-shaped portions cut out on both sides of the end inner flaps 8, 8, 9, 9 by the cutout portions 19, 19 are connected to the end inner flaps 8, 8, 9, 9 through folding lines. The heights of the cutout portions 19 and 19 are designed to correspond to the positions of the tabs 21 and 21 of the central portions 6a and 6a of the outer end flaps 6 and 6 when a box is assembled from a blank as will be described later. The

  In order to form a long oblong hole in the side at a position higher than the cut start tabs 18 and 18 on both sides of the end flaps 8, 8, 9, 9 on both sides, Half-oval cutouts 15 and 15 formed are provided. The semi-oval portions cut out on both sides of the inner end flaps 8, 8, 9, 9 by the notches 15, 15 are combined into two to form an oval hole. On the cutouts 15 and 15 for forming the holes, fold lines 16 and 16 for folding the corners of the cutouts 15 and 15 obliquely are provided. The heights of the notches 15 and 15 for forming the holes are determined by the positions of the tabs 17 and 17 of the central portions 7a and 7a of the outer end flaps 7 and 7 when the box is assembled from the blank as described later. Designed to support

Next, a procedure for assembling such a blank as a box will be described. However, this assembling procedure is an example, and it is possible to assemble a box even if the procedure is slightly changed.
First, from the blank state shown in FIG. 1, the side panels 3 and 4 are folded 90 ° along the fold line with respect to the bottom panel 1, and the side panels 3 and 4 are raised with respect to the bottom panel 1. The side of the box. Next, the upper panel is folded at 90 ° along the fold line with respect to the one side panel 4 so as to be opposed to the bottom panel 1 to be the upper surface of the box. Further, the adhesive flap 5 is 90 ° -folded along the fold line with respect to the other side panel 3, and is inserted into the lower side near the edge of the upper panel 2 and bonded. The portion to be bonded is a hatched portion in FIG. 1, and this is a portion where the core is crushed and thinned. As described above, a cylindrical semi-assembled box in which the upper and lower side surfaces of the rectangular parallelepiped are closed is obtained.

  Next, as shown in FIG. 3, the inner end flaps 8, 8, 9, 9 on both sides of the side panels 3, 4 are valley-folded in FIG. Bend to the short side of 2 and close the end face of the box. Further, the outer end flaps 6, 6 are folded 90 ° along the fold line with respect to the bottom panel 1. Further, the outer end flaps 7, 7 are folded 90 ° along the fold line with respect to the upper panel 2. As a result, both side portions 6b, 6b, 7b, 7b of the outer end flaps 6, 6, 7, 7 are overlapped with the lower and upper outer surfaces of the end inner flaps 8, 8, 9, 9 respectively. Only the side portions 6b, 6b, 7b, and 7b are bonded to the inner end flaps 8, 8, 9, and 9, respectively. The center portions 6a, 6a, 7a, 7a of the outer end flaps 6, 6, 7, 7 are not bonded. As a result, a closed box as shown in FIG. 3 is completed. In addition, although goods are not illustrated in FIG. 3, it cannot be overemphasized that goods, such as a container drink, are accommodated in the inside during the assembly of a box.

The assembly of these boxes and the storage of merchandise is usually done by automatic machines, but a special small number of products may be packed manually.
In this state, the tabs 21 and 21 at the tips of the center portions 6a and 6a of the outer end flaps 6 and 6 correspond to the positions of the cutout portions 19 and 19 of the inner end flaps 8 and 8, and the outer end flaps 7 and 7 The tabs 17 and 17 at the tips of the central portions 7a and 7a correspond to the positions of the notches 15 and 15 of the inner end flaps 9 and 9, respectively.

Next, a procedure for opening the end face of the box shown in FIG. 3 from the closed state as shown in FIG. 4 will be described. Although FIG. 4 shows a state in which only one end face is opened, the same applies to the other end face.
First, the lower end outer flap 6 is cut along the auxiliary cutting lines 12 and 12, and both side portions 6 b and 6 b of the outer end flap 6 are separated from the center portion 6 a and the bottom panel 1. For this separation, the tab 21 at the tip of the central portion 6a may be picked up with a finger and caused. Since this tab 21 corresponds to the position of the cut-out portions 19 and 19 of the end flaps 8 and 8, a finger can be easily inserted from the outside of the box. Further, the upper outer end flap 7 is cut along the auxiliary cutting lines 11 and 13, and both side portions 7 b and 7 b of the outer end flap 7 are separated from the central portion 7 a and the upper panel 2. At the time of this separation, the tab 17 at the tip of the central portion 7a is preferably picked up with a finger. Since the tab 17 corresponds to the positions of the notches 15 and 15 of the inner end flaps 9 and 9, a finger can be easily inserted from the outside of the box.

  Accordingly, the center portions 6a and 7a of the outer end flaps 6 and 7 can be opened along the fold line with respect to the bottom panel 1 and the upper panel 2, respectively. Further, the inner end flaps 8 and 9 can be opened along the fold lines with respect to the side panels 3 and 4, respectively. Since both side portions 6b, 6b, 7b, 7b of the outer end flaps 6, 7 cut off at this time remain adhered to the side panels 3, 4, both side portions 6b, 6b, 7b, 7b becomes what is called a waste piece and does not separate. Further, since the center portions 6a and 7a of the outer end flaps 6 and 7 are developed on the extended surfaces of the bottom panel 1 and the upper panel 2, respectively, it can be used as a guide when taking out the product.

Next, a procedure for closing and temporarily fixing the end face as shown in FIG. 5 from the opened end face will be described.
First, from the state in which the end face is open as shown in FIG. 4, the end flaps 8 and 9 are bent from the fold line to the end face side of the box with respect to the side panels 3 and 4 as shown in FIG. Thereafter, the center portion 6 a of the outer end flap 6 is bent from the folding line to the end surface side of the box with respect to the bottom panel 1, and overlapped on the inner end flaps 8 and 9. Further, the tab 21 at the tip of the central portion 6 a of the outer end flap 6 is pushed into the cutout portion 19 of the inner end flaps 8, 9, and the tab 21 is folded and fixed inside the inner end flaps 8, 9. Similarly, the center portion 7a of the outer end flap 7 is bent from the fold line to the end face side of the box with respect to the upper panel 2, and is overlapped on the inner end flaps 8 and 9. Further, the tab 17 at the tip of the central portion 7 a of the outer end flap 7 is pushed into the notch 15 of the inner end flaps 8 and 9, and the tab 17 is folded and fixed inside the inner end flaps 8 and 9. As a result, as shown in FIG. 5, the end face is closed again, and it is temporarily fixed.

  In the packaging box of the illustrated example, in addition to opening the box as described above, it can also be separated into upper and lower parts using a cut tape 23. That is, the end of the cut tapes 23, 23 is picked up by one hand from one of the cut start tabs 18, 18 of the inner end flaps 8, 8, 9, 9, and the cut tapes 23, 23 are pulled strongly. As a result, the end flaps 8, 8, 9, 9 and the side panels 3, 4 are cut at that position, so that the box can be opened up and down.

  Further, FIG. 6 shows an example of a state where one end face of the box is opened as shown in FIG. 3 and the other end face is opened, and then the box is folded and recovered as used paper raw material or the like. This state is a state in which an empty packaging box in which a product is taken out from the inside is unfolded and folded into two from the central fold line. This is a case where the tape is opened without using the cut tape 23. In this state, the tab-shaped cutout portions 19 and 19 of the one end inner flap 8 and 9 correspond to the positions of the notches 15 and 15 of the other end inner flap 8 and 9. For this reason, the cutout portions 19 and 19 can be inserted into the cutouts 15 and 15 to be hung, and the folded state can be temporarily fixed. That is, it can hold | maintain so that what was folded may not open.

  The packaging box according to the present invention is easy to open for taking out the product, and fine blank scraps are not separated at the time of opening. In addition, the packaging box has a resealing function and a folding holding function. The product can be easily taken out, reused, and recovered as used paper raw materials, and can be widely used as packaging materials in various fields.

DESCRIPTION OF SYMBOLS 1 Bottom panel 2 Upper panel 3 Side panel 4 Side panel 6 End outer flap 7 End outer flap 8 End inner flap 9 End inner flap 6a End outer flap center part 7a End outer flap center part 6b End outer flap both sides 7b Both sides of outer end flap 11 Cutting auxiliary line 12 Cutting auxiliary line 15 Notch 17 Tab 21 Tab 19 Cutout

Claims (5)

A pair of inner end flaps 8 and 9 extending from a pair of opposing side panels 3 and 4 forming the side face of a rectangular parallelepiped box are bent to the end face side of the box to close both sides of the end face, and the bottom face of the box The outer end flaps 6 and 7 extending from the bottom panel 1 and the upper panel 2 respectively forming the upper surface and the upper panel 2 are bent to the end surface side of the box and are overlapped and bonded to the inner end flaps 8 and 9, respectively. In the packaging box for closing the end face, cutting auxiliary lines 11 and 13 are provided between the side portions 7b and 7b of the outer end flap 7 and the central portion 7a and the upper panel 2, and the both side portions 7b and 7b are provided. Only the inner end flaps 8 and 9 are bonded to each other, and a cutting auxiliary line is not provided between the central portion 7a of the outer end flaps 7 and the upper panel 2, and the central portion 7a is connected to the inner end flaps 8 and 9. Characterized by non-adhesion Packaging box. The central portion 7a of the outer end flap 7 has a tab 17 at the tip, and a notch in which the tab 17 can be inserted at a position corresponding to the tab 17 of the inner end flaps 8 and 9 when the end face of the box is closed. 15. The packaging box according to claim 1, comprising 15. A pair of inner end flaps 8 and 9 extending from a pair of opposing side panels 3 and 4 forming the side face of a rectangular parallelepiped box are bent to the end face side of the box to close both sides of the end face, and the bottom face of the box The outer end flaps 6 and 7 extending from the bottom panel 1 and the upper panel 2 respectively forming the upper surface and the upper panel 2 are bent to the end surface side of the box and are overlapped and bonded to the inner end flaps 8 and 9, respectively. In the packaging box that closes the end face, an auxiliary cutting line 12 is provided between the both side portions 6b, 6b of the outer end flap 6 and the central portion 6a and the bottom panel 1, and only these both side portions 6b, 6b are provided. Adhering to the inner end flaps 8 and 9, connecting the center part 6 a of the outer end flaps 6 and the bottom panel 1 without providing a cutting auxiliary line, and unattaching the central part 6 a to the inner end flaps 8 and 9. A packaging box characterized by that. The center portion 6a of the outer end flap 6 has a tab 21 at the tip, and a cutout portion into which the tab 21 can be inserted at a position corresponding to the tab 21 of the inner end flaps 8 and 9 when the end face of the box is closed. The packaging box according to claim 3, comprising 19. When the box is unpacked and folded, the end inner flaps 8 and 9 have cutout portions 19 and 19 that can be inserted into the notches 15 and 15 provided in the other end inner flaps 8 and 9, respectively. The packaging box according to any one of claims 1 to 4.

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