JP2008162659A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily enable the partial opening of the packaging box of an intermediate layer of a plurality of packaging boxes which are stacked. <P>SOLUTION: The packaging box is provided with a circumferential wall 10 surrounded by wall parts 13A, 13B, 14A and 14B, and the lower end opening of the circumferential wall 10 is closed by a bottom wall 12, and flaps 17A, 17B, 18A and 18B for closing the upper end opening of the circumferential wall 10 are continuous with the wall parts 13A, 13B, 14A and 14B. A breaking part 22 is formed at least in a first wall part 14B of the wall parts 13A, 13B, 14A, and 14B, and the inside of the packaging box is exposed by breaking a part thereof in a sealed state. The breaking part 22 is sectioned in the first wall part 14B by a cutting line 23 which is spaced apart with a predetermined interval S from a boundary line 21 between the first wall part 14B and the flap 18B continuous with the first wall part 14B and extends along the boundary line 21 and a breaking means 25 which extends from both ends of the cutting line 23 toward a bottom wall 12. A grasping part 32 for grasping during the breakage of the breaking part 22 is formed at the breaking part 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a packaging box that can be used for transportation of goods and can be displayed by exposing the goods accommodated therein by partially breaking at a store.

  Prior art document information relating to the packaging box of the present invention includes the following.

JP 2002-68175 A JP 2006-160320 A

  In Patent Document 1, the front and rear, right and left walls surround the four sides, and the lower end opening is closed by a flap connected to each wall part, and the upper end opening is closed by a lid plate connected to the rear wall part. The packaging box is listed. The packaging box is provided with a first break line extending in a substantially U shape over the wall portions on both sides at one intermediate position in the vertical direction of the left and right wall portions facing each other. The front and rear wall portions are provided with a second break line extending from the end portion of the first break line to the upper end of the wall portion facing the wall portion provided with the first break line. Furthermore, a third break line is provided between the ends of the pair of second break lines. And it is comprised so that the goods accommodated in the inside can be exposed by isolate | separating the upper part of a packaging box by fracture | rupturing each wall part along these fracture lines.

  Patent Document 2 describes a packaging box in which flaps are connected to upper and lower ends of a wall portion that surrounds four sides, and the openings at the upper and lower ends are closed by these flaps. In this packaging box, a resin tape constituting the first breaking means is provided on one wall portion located on the side so as to extend in the lateral direction. Further, the wall portion is provided with second breaking means for alternately repeating the cutting portion and the non-cutting portion so as to form a perforation so as to extend upward from the resin tape on both sides. These second breaking means are provided so as to extend toward the boundary line with the upper continuous flap, and third breaking means having a perforated shape having a cut portion and a non-cut portion between its end portions is provided. Yes. And it is comprised so that the enclosed inside can be fractured | ruptured and the accommodated goods can be exposed by fracture | rupturing a wall part by each fracture | rupture means.

  However, the packaging box described in Patent Document 1 has a problem that when a plurality of packaging boxes are stacked when selling products at a store, only the packaging box located at the uppermost stage can be opened.

  On the other hand, the packaging box described in Patent Document 2 can be partially broken even in the packaging box located in the intermediate layer in a state where a plurality of packaging boxes are stacked, and the inside can be exposed. However, the packaging box located in the intermediate layer has a problem that the breaking workability is very poor because a compressive force is applied in the vertical direction due to the weight of the packaging box located in the upper layer.

  The present invention has been made in view of the conventional problems, and an object of the present invention is to provide a packaging box that can be easily partially opened even by an intermediate packaging box in which a plurality of packaging boxes are stacked.

  In order to solve the above problems, a packaging box according to the present invention includes a peripheral wall surrounded in a cylindrical shape by a plurality of wall portions, the lower end opening of the peripheral wall is closed by a bottom wall, and the upper end opening of the peripheral wall is formed in the wall portion. In a packaging box in which flaps to be closed are continuously provided, a rupture portion is provided in at least a first wall portion of the plurality of wall portions, and a part thereof is broken in a sealed state by the flaps so that the inside can be exposed. A cutting line that is located at a predetermined distance from a boundary line between the first wall part and the flap that is continuous with the first wall part and extends along the boundary line in the one wall part; In addition to partitioning with breaking means extending from both ends of the cutting line toward the bottom wall, the breaking portion is provided with a gripping portion for gripping when the breaking portion is broken.

  In this packaging box, it is preferable to provide a transverse line extending in a direction intersecting the cutting line at both ends of the cutting line.

  In the packaging box of the present invention, since at least the first wall portion constituting the peripheral wall is provided with the breaking portion divided by the cutting line and the breaking means, even in the packaging box located in the intermediate layer among the plurality of stacked portions, the breaking portion is provided. By breaking, the product accommodated in the interior can be exposed. That is, since a part can be broken and the inside can be exposed in a sealed state by a flap, a sales promotion effect for consumers can be obtained particularly in store sales. Moreover, in this ruptured state of the ruptured portion, since only a part of the first wall portion is ruptured, the rigidity of the packaging box can be maintained, and as a result, the state in which a plurality of packaging boxes are stacked can be sufficiently maintained. .

  Furthermore, when the broken portion breaks, even when another packaging box is placed on the upper side and a compressive force is applied, the cutting edge along the cutting line can be easily separated by pulling the holding portion outward. it can. And since this cutting line side can be easily broken using the breaking start point, the breaking workability can be improved.

  And since the crossing line that extends in the direction intersecting the cutting line is provided at both ends of the cutting line, load is applied to both ends of the cutting line at the time of sealing or breaking work, preventing breakage in unexpected directions it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 8 show a packaging box according to an embodiment of the present invention. This packaging box is provided with a pair of end walls 13A and 13B and side walls 14A and 14B, which are wall portions constituting the peripheral wall 10 surrounding the four sides. These walls 13A, 13B, 14A, and 14B are provided with flaps 17A, 17B, 18A, and 18B constituting the canopy 11 at the upper edge, and a flap 19A that constitutes the bottom lid (bottom wall) 12 at the lower edge. , 19B, 20A, 20B are continuously provided. The one side wall 14B constituting the peripheral wall 10 is provided with a fracture portion 22 that is partially broken (separated) in a sealed state so that the inside can be exposed.

  Specifically, in this packaging box, a corrugated cardboard having a corrugated shin 1 disposed between a front cover and a back paper is formed as a continuous blank shown in FIG. 7 by a well-known paper punching device (not shown). It is molded by stamping and pasting a predetermined part by gluing. The corrugated cardboard is attached with a separation band 2 extending in a direction orthogonal to the extending direction of the intermediate shin 1 on the surface of the backing paper at the time of manufacture. The separation band 2 is made of a polypropylene tape having an adhesive applied on one side.

  As shown in FIG. 7, in the blank of this packaging box, the end walls 13A and 13B and the side walls 14A and 14B each having a rectangular shape are arranged in the order of the side wall 14A, the end wall 13A, the side wall 14B, and the end wall 13B from the left side. It is provided so as to be continuous linearly. Among these, the margin part 15 for adhering to the side edge of the end wall 13B located in the right end is connected to the lateral side edge of the side wall 14A located in the left end. Each of these boundary portions is provided with a folding line 16 formed by ruled lines so as to compress the wall thickness.

  Also, rectangular upper inner flaps 17A and 17B are connected to the upper end edges of the end walls 13A and 13B, respectively, and rectangular upper outer flaps 18A and 18B are connected to the upper end edges of the side walls 14A and 14B, respectively. It is installed. Further, rectangular lower inner flaps 19A and 19B are connected to lower end edges of the end walls 13A and 13B, respectively, and rectangular lower outer flaps 20A and 20B are respectively connected to lower end edges of the side walls 14A and 14B. Are connected. A folding line 21 similar to the folding line 16 is provided at each of these boundary portions.

  And in this embodiment, the fracture | rupture part 22 which can be isolate | separated by fracture | rupture is provided in the side wall 14B (1st wall part) which comprises the surrounding wall 10. As shown in FIG. As shown in FIG. 8, the breaking portion 22 includes a first cutting line 23 located on the upper side, breaking lines 25 and 25 located on both ends of the first cutting line 23, and lower ends of the breaking lines 25 and 25. And the second cutting line 30 located at the end of the side wall 14B.

  The first cutting line 23 is obtained by completely cutting the entire thickness of the corrugated cardboard that is the base paper. From the folding line 21 that is a boundary line between the side wall 14B and the upper outer flap 18B continuous to the side wall 14B, It is provided so as to extend in parallel with a predetermined interval so as to be located in the side wall 14B. And in this embodiment, the space | interval S spaced apart from the folding line 21 is 10 mm or less, More preferably, it is 5 mm. Note that 5 mm is a dimension corresponding to the thickness of general-purpose corrugated paper. Further, the horizontal dimension of the first cutting line 23 does not extend over the entire lateral direction of the side wall 14B, and a residual portion that is not separated on both lateral sides of the side wall 14B remains. At both ends of the first cutting line 23, transverse lines 24 that extend so as to intersect the cutting line 23 and are cut perpendicular to the folding line 21 are formed.

  The breaking line 25 is breaking means that extends from the lower ends of the transverse lines 24, 24 located at both ends of the first cutting line 23 toward the lower outer flap 20B located on the opposite side. In the present embodiment, each break line 25, 25 is configured to incline downward inward (towards the center) so that the break portion 22 has a trapezoidal shape spreading upward. Specifically, the breaking line 25 has a perforated shape that alternately repeats the cut portions 26 and the non-cut portions 27 along the extending direction. Here, as for the fracture | rupture part 22 of this embodiment, the direction toward the lower side from the upper side which is the 1st cutting line 23 side turns into a fracture | rupture direction. Therefore, a pair of guide cutting portions 28a and 28b are provided at the upper end of the cutting portion 26 so as to spread outward in an approximately Y-shape. In addition, the guide cutting portion 28 a located on the inner side that is the side of the breaking portion 22 is configured to be continuous with the cutting portion 26 by an arcuate cutting portion 29. Further, the guide cutting portion 28b located on the outside is configured to extend from the lower end of the cutting portion 26 located on the upper side to the outside sufficiently beyond the extension line along the extending direction of the intermediate shin 1. Further, the opposite (lower) end portion of the fracture line 25 extends to the vicinity of the lower end of the side wall 14B that does not reach the second cutting line 30 described later.

  The second cutting line 30 is obtained by completely cutting the entire thickness of the corrugated cardboard in the same manner as the first cutting line 23, and is on the opposite end so as to be positioned symmetrically with the first cutting line 23 on the side wall 14B. It is provided so that it may be located in the vicinity. That is, the side wall 14B is provided so as to extend in parallel with a predetermined interval so as to be located in the side wall 14B from a folding line 21 that is a boundary line with the lower outer flap 20B continuous with the side wall 14B. The lateral extension dimension of the second cutting line 30 is configured to sufficiently protrude outward in the lateral direction from the lower ends of the fracture lines 25, 25. Further, transverse lines 31 and 31 extending in the vertical direction so as to be orthogonal to the folding line 21 are provided at both ends of the second cutting line 30.

  The breaking portion 22 surrounded by the first cutting line 23, the breaking lines 25 and 25, and the second cutting line 30 is provided with a gripping portion 32 for the user to grip when breaking. The grip portion 32 is formed of a hole having a cut-and-raised structure in which a part (upper side) is continuous and the other part is broken. Specifically, a folding line 33 constituting a continuous portion is provided on the upper side so as to extend in the lateral direction, and arcuate cutting lines 34 and 34 are provided so as to form a semicircular shape from both ends of the folding line 33. Yes. And the cutting line 35 for a break which repeats the long cutting part 35a and the short non-cutting part 35b alternately is provided so that the lower ends of these circular arc-shaped cutting lines 34 may be tied. And the holding part 32 which makes a hole by pushing is formed in the inside enclosed by these.

  The separation band 2 is positioned so as to extend in the lateral direction at the center of the grip portion 32, and constitutes a breaking means for separating the upper portion so that the packaging box forms a tray shape. And in this embodiment, as shown in FIG. 7, the fracture | rupture start point part 36 by this separation zone 2 is provided in 14 A of side walls located on the opposite side to the fracture | rupture part 22. As shown in FIG. The fracture start point 36 includes a first cutting portion 37 extending in the vertical direction so as to cross the separation band 2 and a second pair provided on the left and right sides so as to extend in the horizontal direction from the upper and lower ends of the first cutting portion 37. It consists of a cutting part 38 and a third cutting part 39. The end portions of the cutting portions 37 to 39 are configured to be in a discontinuous state. In addition, the end wall 13B has a break assisting action when the end wall 13B is broken by a series of operations via the adhesive margin 15 and an auxiliary break line 40 that forms a break start point when the end wall 13B cannot be broken. , 40 are provided. The auxiliary breaking line 40 has a perforated shape in which a cut portion and a non-cut portion are alternately repeated.

  In the packaging box having the above-described configuration, the separation band 2 is attached to the surface of the backing paper at the stage of manufacturing corrugated cardboard. And it is not a die cutter method that punches in a single process using a dedicated wooden mold, but it is manufactured by L-type flexo-glua, a general-purpose processing machine that can be automatically formed by simply inputting dimensions of various sizes of boxes. Is done. And the fracture | rupture part 22, the fracture | rupture start point part 36, and the auxiliary | assistant fracture | rupture line 40 are formed by attaching | subjecting an exclusive partial type | mold to this flexogluer.

  Specifically, in this flexo glua, in the first processing line, a continuous wide roll-shaped corrugated paper is supplied so that the inner core 1 extends in a direction perpendicular to the first transport direction. The slitter scorer continuously provides folding lines 21 for partitioning the walls 13A, 13B, 14A, 14B and the flaps 17A, 17B-20A, 20B, and the upper flaps 17A, 17B, 18A, Cut from 18B to lower flaps 19A, 19B, 20A, 20B. At this time, the cut is performed so that the separation band 2 is at a preset position.

  Next, the rectangular sheets formed with only the folding lines 21 that are cut by the cutting device in the dimension from the margin portion 15 to the end wall 13B and then conveyed in a plurality of rows by the stacker are collected into one row. Pile up.

  Next, in the second processing line, the divided rectangular sheets are conveyed in the second conveying direction Y along the extending direction of the intermediate shin 1, and first, printing (not shown) is performed on the front surface of each rectangular sheet by the printing device. Is given. Thereafter, a folding line 16 parallel to the extending direction of the intermediate shin 1 is provided by the scorer.

  Next, unnecessary portions at the upper and lower ends of the adhesive margin 15 are cut by the grooving device between the adjacent upper flaps 17A, 17B, 18A, 18B, between the lower flaps 19A, 19B, 20A, 20B. To be removed. Then, the fracture | rupture part 22, the fracture | rupture start point part 36, and the auxiliary | assistant fracture line 40 are formed with a punching apparatus.

  Finally, after an adhesive such as a vinyl acetate emulsion system is applied to the surface of the adhesive margin 15 by the sticking device, the side wall 14A is bent with respect to the end wall 13A and the end wall 13B with respect to the side wall 14B. Is folded and glued in a state where the overlapped margin portion 15 and the edge of the end wall 13B are pressed. In this state, the product is delivered to a predetermined manufacturer.

  Thus, since the packaging box of the present invention is manufactured by a general-purpose processing machine, not by a die cutter method that increases the manufacturing cost, a newly required manufacturing part is only a partial die, and the production cost Can be reduced. Moreover, since the punching is performed with flexogluer, the yield is very good, the incidence of defective products is low, and the production efficiency per unit time is very high.

  On the other hand, as described above, the punching with this flexogluer is a separate process between the forming process of the folding line 21 and the forming process of the fractured part 22. Therefore, when the fractured part 22 is formed, the design position shown in FIG. However, it is unavoidable that an error (± about 5 mm misalignment) occurs in the transport direction (vertical direction in FIG. 8).

  However, since the packaging box of the present embodiment has a configuration in which the first cutting line 23 and the second cutting line 30 that define the breaking portion 22 are provided with a predetermined interval S from the folding line 21, it is ensured even if an error occurs. The first cutting line 23 and the second cutting line 30 can be positioned inside the side wall 14B.

  In the manufacturer in which the unused packaging box is delivered, first, the walls 13A, 13B, 14A, and 14B constituting the peripheral wall 10 are expanded in a cylindrical shape so as to surround the four sides. After the lower inner flaps 19A and 19B are bent with respect to the end walls 13A and 13B, the lower outer flaps 20A and 20B are bent with respect to the side walls 14A and 14B, thereby closing the bottom opening. Thereafter, the leading end portions of the lower outer flaps 20 </ b> A and 20 </ b> B that are abutted are attached with the adhesive tape 3.

  Thereafter, after the manufactured product is accommodated from the open upper end opening of the peripheral wall 10, the upper inner flaps 17A and 17B are folded, and the upper outer flaps 18A and 18B are folded and closed in the same manner as described above. Stick with.

  In the sealed state of the packaging box, as shown in FIG. 1, a folding line 21 is provided between the side wall 14B and the outer flaps 18B, 20B, but the first cutting line 23 and the second cutting line 23 extending in parallel in the vicinity thereof. Since the cutting line 30 is located, the region where the first cutting line 23 and the second cutting line 30 are provided by the waist of the corrugated paper itself is not bent along the folding line 21 and the outer flap 18B. , 20B, and the cutting ends of the cutting lines 23, 30 protrude.

  FIG. 1 shows a case where the first cutting line 23 is formed at a position separated from the folding line 21 by an interval S corresponding to the approximate thickness of the corrugated paper as designed. On the other hand, when a deviation occurs in the design position at the time of manufacture, as shown in FIG. 9, one of the first cutting line 23 and the second cutting line 30 approaches the folding line 21 and the other from the folding line 21. Leave. FIG. 9 shows a case where the position where the fractured portion 22 is formed is shifted downward.

  In the sealed state of FIG. 9, the side of the first cutting line 23 away from the folding line 21 is the side of the second cutting line 30 that is close to the folding line 21 because the upper outer flap 18B is bent along the folding line 21. As described above, without being bent along the folding line 21, it extends integrally with the lower outer flap 20B, and the cut end of the second cutting line 30 protrudes.

  Thus, since the packaging box of this embodiment is provided so that the cutting lines 23 and 30 are located in the side wall 14B with the predetermined space | interval S from the corresponding folding lines 21 and 21, even if a manufacturing error arises The cutting lines 23 and 30 can be positioned in the side wall 14B, and a sealed state as designed can be secured.

  Then, at the store of the store that sells the products stored in the packaging box, for example, as shown in FIG. 1, the packaging boxes are stacked and a part of the packaging box at a predetermined position is opened to check the products stored inside. Sell as possible.

  Specifically, first, as shown in FIG. 2, the gripping portion 32 of the side wall 14 </ b> B is pushed inward from the outside to break the non-cutting portion 35 b of the breaking cutting line 35, and along the folding line 33. Bend inward. Then, with the hand inserted into the hole formed in the grip portion 32, for example, the grip portion 32 is pulled outward with the upper inner surface. Thereby, the edge of the first cutting line 23 that has been completely cut is easily separated from the side wall 14B, and outward from the upper ends of the breaking lines 25, 25 at both ends having continuous portions (non-cutting portions 27). It is in a bent state.

  Then, the uncut portion 27 is broken along the breaking lines 25 and 25 as shown in FIG. At this time, in the present embodiment, the outer guide cutting portion 28b constituting the breaking line 25 is configured to extend to the outside sufficiently from the lower end of the cutting portion 26 located on the upper side. Therefore, although the breaking lines 25, 25 are obliquely extended so as to intersect the center rod 1, the breaking line 25, 25 can be reliably broken by the guide cutting portion 28b. It can break along 25.

  Then, when it fractures to the lower end of the fracture lines 25, 25, as shown in FIG. 4, the lower part of the fracture part 22 is fractured so as to tear. At this time, in the present embodiment, the second cutting line 30 positioned below the second cutting line 30 is provided so as to extend sufficiently outward from the lower ends of the breaking lines 25, 25, so that the unexpected breaking is sufficiently received. As a result, the second cutting line 30 can be reliably separated.

  Thus, in the packaging box of this embodiment, since the fracture | rupture part 22 is divided by the 1st cutting line 23 and the fracture | rupture lines 25 and 25, it is located in the intermediate | middle layer among several piled up, and compression force was added. Even in the packaging box, the cutting edge along the first cutting line 23 can be easily separated. And since it can fracture | rupture with the side of this cutting line 23 as a fracture | rupture starting point, fracture | rupture workability | operativity can be improved. Moreover, since the separation state of the fracture portion 22 is a state in which only a part of the side wall 14B is separated, the rigidity of the packaging box can be maintained, and as a result, the state in which a plurality of packaging boxes are stacked can be sufficiently maintained. And since a part can be fractured | ruptured and an inside can be exposed in a sealing state, the sales promotion effect with respect to a consumer can be acquired especially in store sales. In addition, since the ends of the break lines 25, 25 are transverse lines 24, 31 extending beyond the cut lines 23, 30 and extending to the boundary lines with the flaps 18B, 20B, both end portions of the cut line at the time of sealing or breaking work It is possible to prevent a load from being applied and breakage in an unexpected direction.

  On the other hand, when the upper part of the packaging box is further separated in this state, as shown in FIG. 5, one of the gripping pieces 36a and 36b surrounded by the cutting parts 37 to 39 is removed at the breaking start point part 36 of the side wall 14A. Hold it with your finger and pull it outward. Thus, the side wall 14A is broken so as to be torn by the separation band 2, and then the adjacent end wall 13B is broken, and then the adjacent side wall 14B is broken. And this fracture will stop when it reaches the open window which separated fracture part 22. Next, in the same manner as described above, the other side of the gripping pieces 36a and 36b is gripped and pulled outward to break the side wall 14A, and then the adjacent end wall 13A is broken, and then the adjacent side wall 14B is broken. To do.

  Thereby, as shown in FIG. 6, it can be set as the tray shape which isolate | separated the fracture | rupture part 22 and the upper part. Therefore, since a product can be confirmed from any of front, rear, left and right with respect to the packaging box, a sales promotion effect can be obtained.

  In addition, the packaging box of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the above-described embodiment, the lower end of the fracture portion 22 is partitioned by the second cutting line 30, but instead of the second cutting line 30, it may be a folding line provided with a ruled line so as to compress the wall thickness. Moreover, it is good also as a structure (non-separation form) which substitutes the folding line 21 and does not provide anything.

  Moreover, in the said embodiment, although comprised so that a pair of fracture | rupture line 25,25 may incline below inward, you may provide so that it may extend in the vertical direction along the center shin 1, and the structure is limited. It is not something. Further, the breaking line 25 is not limited to a perforated shape in which the cutting portion 26 and the non-cutting portion 27 are alternately repeated, but a so-called half-cut structure in which one of the cover and the back paper is cut and the other is in a non-cutting state. It may be.

  Furthermore, in the above-described embodiment, the grip portion 32 is configured by a hole having a cut-and-raised structure, but may be configured by a completely punched hole. Of course, the grip portion 32 is not limited to one location with respect to the fracture portion 22, and two or more grip portions 32 may be provided to improve the fracture workability.

  And in the said embodiment, although it was set as the structure which provides the fracture | rupture part 22 only in one side wall 14B, you may provide in both side wall 14A, 14B. Moreover, in the above embodiment, since the packaging box is sealed with the adhesive tape 3, the breaking portion 22 is provided on the side wall 14B continuous to the outer flaps 18B and 20B. However, the overlapped inner flaps 17A, 17B, 19A and 19B are provided. And the outer flaps 18A, 18B, 20A, 20B are provided on the end walls 13A, 13B continuous to the inner flaps 17A, 17B, 19A, 19B. May be. Further, instead of hot melt, sealing may be performed by a stopper (staple), or sealing may be performed by an interlock system provided with a locking structure that locks adjacent flaps 17A, 17B to 20A, 20B.

  Moreover, in the above-described embodiment, the end walls 13A and 13B and the side walls 14A and 14B are alternately connected in the horizontal direction, and the flaps 17A, 17B, 18A, and 18B constituting the canopy 11 are connected to the upper edge of the end walls 13A and 13B. The flaps 19A, 19B, 20A and 20B constituting the bottom lid 12 are connected to the edge continuously, but the bottom wall having a rectangular shape is located at the center, and the end walls 13A and 13B and the side walls are provided at the upper, lower, left and right edges. 14A and 14B, and flaps 17A, 17B, 18A, and 18B constituting the canopy 11 may be connected to the respective end edges.

  Of course, in the said embodiment, although the wall part which comprises the surrounding wall 10 was set as the structure which provides the fracture | rupture part 22 of this invention in the packaging box of 4 surfaces, the planar view shape of the packaging box is not restricted to a rectangular shape, In hopes Changes can be made accordingly. In addition, a chamfered wall may be provided between the wall portion and the flaps 17A, 17B to 20A, 20B. In this case, the first chamfered wall has a predetermined distance S from the boundary line (folding curve) with the chamfered wall. One cutting line 23 may be formed.

It is a perspective view which shows the packaging box of embodiment of this invention. It is a perspective view which shows one process at the time of fracture | rupturing a fracture | rupture part. It is a perspective view which shows another process at the time of fracture | rupturing a fracture | rupture part. It is a perspective view which shows the state which fractured | ruptured the fracture | rupture part. It is a perspective view which shows one process at the time of isolate | separating the upper part of a packaging box. It is a perspective view which shows the state which isolate | separated the upper part. It is a top view which shows the blank of a packaging box. It is the top view which expanded a part of FIG. It is a perspective view which shows the packaging box in which the manufacture error produced.

Explanation of symbols

10 ... peripheral wall 11 ... canopy 12 ... bottom lid (bottom wall)
13A, 13B ... End wall (wall part)
14A, 14B ... sidewalls (walls)
17A, 17B ... Upper inner flap (canopy)
18A, 18B ... Upper outer flap (canopy)
19A, 19B ... Lower inner flap (bottom wall)
20A, 20B ... Lower outer flap (bottom wall)
21 ... Bent curve (boundary line)
22 ... Breaking part 23 ... First cutting line 24 ... Transverse line 25 ... Breaking line 26 ... Cutting part 27 ... Non-cutting part 30 ... Second cutting line 32 ... Holding part

Claims (2)

A peripheral wall surrounded in a cylindrical shape by a plurality of wall portions, the lower end opening of the peripheral wall is closed by a bottom wall, and a flap for closing the upper end opening of the peripheral wall is connected to the wall portion; Among them, in a packaging box that is provided with a rupture portion in at least the first wall portion, and the inside can be exposed by breaking a part in the sealed state by the flap,
Within the first wall, the break
A cutting line that is located at a predetermined distance from a boundary line between the first wall part and the flap that is continuous with the first wall part, and extends along the boundary line;
Partitioning with breaking means extending from both ends of the cutting line toward the bottom wall;
A packaging box, characterized in that a grip portion for gripping the fracture portion when the fracture portion is broken is provided in the fracture portion.   The packaging box according to claim 1, wherein a transverse line extending in a direction intersecting the cutting line is provided at both ends of the cutting line.

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