JP5944737B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box and a cosmetic product, and particularly to a packaging box having a hollow hexahedron shape and a cosmetic product in which a cosmetic container is packaged in the packaging box.

  For example, as a packaging box for storing cosmetics, medicines, confectionery, stationery, and other items, a blank made of a sheet material made of paper or plastic that has been cut into a predetermined shape is folded. What is assembled into a three-dimensional shape by being bent along is often used. A packaging box using a blank generally contains an article in a cylindrical main body having a rectangular cross section including a pair of front and rear front plates and a pair of left and right side plates, and a lid flap piece having an insertion flap piece connected to the tip. By covering the upper and lower openings of the cylindrical main body, an upper surface portion and a bottom surface portion are formed and assembled into a hexahedral shape.

  In these packaging boxes, when the article is accommodated and sealed again after being opened, the article accommodated by mischief may be tampered with if it can be easily restored to the same state as before opening. Therefore, various packaging boxes having an anti-tampering function that can be identified at a glance as being already opened have been developed (see, for example, Patent Document 1 and Patent Document 2).

JP 2003-341656 A Japanese Patent Application Laid-Open No. 2010-247885

  In a conventional packaging box having an anti-tampering function, for example, an easy-breaking line made of perforation or the like is opened, and the easy-breaking line is broken so that it is already opened. It can be distinguished at a glance. On the other hand, once the easy-breaking line is broken and opened once, it becomes difficult to seal the packaging box again, or it becomes difficult to perform the opening and closing operation. Therefore, it is desired to develop a packaging box having a function of preventing tampering so that the opening and closing operation can be smoothly performed while taking in and out the stored articles.

  In particular, when the article to be stored is, for example, a container for cosmetics, the packaging box is also required to be aesthetic. Therefore, not only until the packaging box is opened, but also after being opened once. Even in the state where the article is accommodated again, it is desired to make the easily breakable line and the portion where the easily breakable line is broken inconspicuous in appearance.

  The present invention makes it possible to open by breaking an easily breakable line, and after opening once, the opening and closing operation can be smoothly performed while taking in and out the article. It is an object of the present invention to provide a packaging box and a cosmetic product that can make a broken part inconspicuous in appearance and not impair the beauty.

  The present invention is a packaging box including a pair of front and rear front plates, a pair of left and right side plates, an upper surface portion and a bottom surface portion, and having a hollow hexahedron shape, wherein the upper surface portion is an upper end of the pair of left and right side plates. Fold the top side flaps connected to each other through a folding line inward, and fold the top main flaps connected to each other through the folding line at the upper end of one front plate, and the tip of the top main flap Are inserted into the upper end portion of the other front plate, and at least one upper end portion of the pair of left and right side plates has both end portions on the upper surface. An easily breakable line connected to the folding line between the side flaps is provided to extend in a concave shape with a size that can accommodate the tip of the finger, and the side edge of the upper surface main flap has the side The ease of the face plate A fixing piece having a size that fits in the breaking portion surrounded by the disconnection is provided at a position that protrudes laterally through a folding line and corresponds to the breaking portion, and the fixing piece has the upper surface portion formed thereon. In this state, the above object is achieved by providing a packaging box that is adhered to the fractured portion from the outside.

  Moreover, this invention achieves the said objective by providing the cosmetics product by which the container for cosmetics is packed in the said packaging box.

  According to the packaging box or cosmetic product of the present invention, it can be opened by breaking an easily breakable line, and can be smoothly opened and closed while taking in and out the article even after being opened once. The easily breakable line and the portion where the easily broken line is broken can be made inconspicuous so that the aesthetic appearance is not impaired.

It is a perspective view which shows the packaging box which concerns on preferable one Embodiment of this invention in the state which saw through one part. It is a perspective view which shows the assembly process of the packaging box which concerns on preferable one Embodiment of this invention, and shows the state seen through partially. It is an expanded view of the blank for forming the packaging box which concerns on preferable one Embodiment of this invention. It is a perspective view shown in the state which saw through partially explaining opening operation of the packaging box which concerns on preferable one Embodiment of this invention. It is a perspective view shown in the state which saw through partially explaining opening operation of the packaging box which concerns on preferable one Embodiment of this invention. It is a perspective view which shows the packaging box which concerns on other embodiment of this invention in the state which saw through one part. It is a perspective view which shows the packaging box which concerns on further another embodiment of this invention in the state which saw through one part. (A)-(h) is a front view which illustrates the other form of a flap part easy fracture line. (A), (b) is explanatory drawing of the cut line for removing a cutting part. It is a schematic front view which illustrates other forms of a lock mechanism.

  A packaging box 10 according to a preferred embodiment of the invention shown in FIG. 1 is manufactured as a cosmetic product by packing, for example, a cylindrical cosmetic container (not shown) filled with cosmetics as an article. The Further, the packaging box 10 of the present embodiment has an opening at the lower end portion of the cylindrical main body 13 composed of a pair of front and rear front plates 11a and 11b and a pair of left and right side plates 12a and 12b. The article is accommodated in the inside of the cylindrical main body 13 through the opening at the upper end of the cylindrical main body 13. Thereafter, the opening at the upper end portion of the cylindrical main body 13 is closed by the upper surface portion 14 formed by the upper surface main flap 18 (see FIG. 3) or the like, thereby being assembled into a hollow hexahedron shape containing the article therein. . The packaging box 10 of the present embodiment can be opened for the first time by breaking the easily breakable line 19, and after opening once, the upper surface portion 14 is opened and closed to smoothly put in and out the stored articles. Further, the easily breakable line 19 and the portion where the easily breakable line 19 is broken are formed at positions that are not conspicuous in appearance.

  The packaging box 10 of this embodiment includes a pair of front and rear front plates 11a and 11b, a pair of left and right side plates 12a and 12b, a top surface portion 14, and a bottom surface portion 15, as shown in FIGS. The packaging box has a hollow hexahedron shape, and the upper surface portion 14 has upper surface side flaps 17a and 17b connected to the upper end portions of the pair of left and right side plates 12a and 12b via folding lines 16a on the inner side. The upper main flap 18 connected to the upper end portion of one front plate 11a via a folding line 16b is folded, and the insertion flap 18a connected to the front end portion of the upper main flap 18 via a folding line 16c. Is inserted into the inside of the upper end portion of the other front plate 11b. At the upper end portion of at least one side plate 12a (one side plate 12a in the present embodiment) of the pair of left and right side plates 12a, 12b, both end portions 19a, 19b are bent along a folding line 16a between the upper side flaps 17a. The easily breakable line 19 to be connected is provided so as to extend in a concave shape large enough to fit the tip of the finger, and at one side edge of the upper surface main flap 18, the easily breakable one side plate 12a is provided. An adhering piece 21 having a size that can be accommodated in the breaking portion 20 surrounded by the line 19 protrudes laterally through the folding line 16d and is provided at a position corresponding to the breaking portion 20. The fixing piece 21 is adhered to the fractured portion 20 from the outside in a state where the upper surface portion 14 is formed.

  Moreover, in this embodiment, the easily breakable line 19 and the breakable part 20 are provided in the part close | similar to the other front board 11b, and the edge part 19a on the side away from the other front board 11b of the easily breakable line 19 is provided. It connects and the flap part easy fracture line 22 is extended and provided so that the peripheral part of the side flap 17a may be reached.

  The packaging box 10 of this embodiment is formed using, for example, a single paper blank 23 as shown in FIG. The blank 23 can be easily obtained by punching and cutting, for example, a sheet-like paper sheet material so as to have a predetermined shape obtained by developing the hexahedron-shaped packaging box 10. The blank 23 has a shape-retaining rigidity and elasticity that can easily hold a smoothly curved state without bending even when the side edge is gripped and horizontally extended in a cantilevered manner. Deformability that can be easily bent by force.

  The blank 23 includes, for example, folding lines 16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h, 24 made of ruled lines, easy break lines 19, 22, 32, 34 made of sewing machines, etc. Since the cuts 27 made of broken lines or the like are provided at appropriate positions, the packaging box 10 can be easily assembled from the blank 23 so as to have a hexahedral shape.

  In the present embodiment, in the cut blank 23 shown in FIG. 3, on the left side of the development view, for example, one front plate 11a having a substantially square shape with a vertical width of about 61.5 mm and a horizontal width of about 67 mm is provided. Is arranged. On the right side of one front plate 11a, a substantially square side plate 12a having a length of about 61.5 mm and a width of about 66.5 mm, for example, is connected via a vertical folding line 24. ing. On the right side of one side plate 12a, the other front plate 11b having a substantially square shape having a vertical width of about 61.5 mm and a horizontal width of about 67 mm is connected via a vertical folding line 24. . On the further right side of the other front plate 11b, the other side plate 12b having a substantially square shape with a vertical width of about 61.5 mm and a horizontal width of about 66.5 mm is connected via a vertical folding line 24. doing. In addition, the left side of one front plate 11a has a vertical width similar to that of one front plate 11a, for example, via a vertical folding line 24, and a lateral width of about 25 mm, and the adhesive bonding piece 25 is laterally provided. It is overhanging and connected.

  Above one front plate 11a, a substantially square top main flap 18 having a vertical width of about 66 mm and a horizontal width of about 67 mm is connected via a folding line 16b. An upper side main flap 18 has a lateral width similar to that of the upper side main flap 18, for example, via a folding line 16 c, and has a vertical width of about 15 mm, and the insertion flap 18 a projects upward and is connected.

  In the present embodiment, the fixing pieces 21 are provided so as to project laterally from the right side edge portion of the upper surface main flap 18 and are connected via the folding line 16d. The fixing piece 21 has a substantially right trapezoidal shape, for example, having a vertical width of about 19 mm and a horizontal width of about 14 mm, and is provided on one side plate 12a. As a position corresponding to the breaking portion 20 surrounded by the easy breaking line 19, it is provided in a portion adjacent to the insertion flap 18 a.

  Below one front plate 11a, a substantially square bottom main flap 26 having a vertical width of about 65 mm and a horizontal width of about 67 mm is connected via a folding line 16e. Below the bottom main flap 26, the insertion flap 26 a has a horizontal width similar to that of the bottom main flap 26, for example, and has a vertical width of about 16 mm, and is extended downward and connected via a folding line 16 f. A known locking mechanism is formed between the bottom main flap 26 and the insertion flap 26a at both ends of the folding line 16f with a locking piece 29 provided at the base end of the bottom side flaps 28a and 28b described later. A locking cut 27 is formed.

  Further, in the present embodiment, the bottom fixing pieces 30 are provided so as to project sideways from the right side edge of the bottom main flap 26 and are connected via the folding line 16g. Similarly to the fixing piece 21 provided on the upper surface main flap 18, the bottom fixing piece 30 has a substantially right trapezoidal shape with a vertical width of about 19 mm and a horizontal width of about 14 mm, for example. As a position corresponding to a rupture portion 33 surrounded by a bottom easily breakable line 32 described later provided on one side plate 12a, it is provided at a portion adjacent to the insertion flap 26a.

  At the upper end portion of one side plate 12a, an easily breakable line 19 made of, for example, perforations is provided, with both ends 19a, 19b connecting to a fold line 16a between the side plate 12a and the upper side flap 17a. ing. In the present embodiment, the easily breakable line 19 has a size that fits the tip of the finger so as to form a substantially right trapezoidal broken part 20 having a vertical width of about 20 mm and a horizontal width of about 15 mm, for example. Along the outer periphery thereof, a concave shape having a substantially right trapezoidal shape is provided. Further, in the present embodiment, the easily breakable line 19 and the breakable part 20 surrounded by the easily breakable line 19 are located in a portion adjacent to the other front plate 11b where the insertion flap 18a of the upper surface main flap 18 is inserted inside. Is provided. Since the easily breakable line 19 and the breakable part 20 are provided in a portion adjacent to the other front plate 11b, the operation of breaking the easily breakable line 19 and opening the upper surface part 14 can be performed more smoothly. It becomes possible. Moreover, the part which the upper surface main flap 18 is not adhere | attached in the state which the packaging box 10 is obstruct | occluded by providing the easily breakable line 19 and the fracture | rupture part 20 in the part which adjoins the other front board 11b. By inserting a finger through the gap, it is possible to effectively prevent the contained article from being exchanged forcibly, and at the corner portion of the packaging box 10 where the rigidity is high. Since the easily breakable line 19 and the breakable part 20 are arranged, even if the packaging box 10 is formed by the relatively thin blank 23 (without bending), the finger is pushed into the breakable part 20 and the easily breakable line 19 is pressed. Can be easily broken.

  Above one side plate 12a, one upper surface side having a substantially right trapezoidal shape with a vertical width of about 40 mm and a horizontal width of about 66.5 mm at the base end portion, for example, via a folding line 16a. The flaps 17a are connected. One upper surface side flap 17a is connected to an end portion 19a on the side away from the other front plate 11b of an easy break line 19 formed at the upper end portion of one side plate 12a, and the flap portion easy break line 22 is connected. However, the upper side flap 17a is provided so as to extend to the side edge (peripheral edge) on the other front plate 11b side which is the oblique side. In this embodiment, the flap part easy break line 22 is formed including a dogleg-shaped cut 22a and an arc-shaped cut 22b that are provided continuously via a dotted part. Further, a lock piece 29 for locking the insertion flap 18a of the upper surface main flap 18 is provided at the base end portion of the side edge portion on the other front plate 11b side which is the oblique side portion of the upper surface side flap 17a. Is provided to protrude.

  Moreover, in this embodiment, the edge part by the side of the peripheral part of the upper surface side flap 17a of the flap part easy fracture line 22 connects with the peripheral notch part 31 formed by notching the peripheral part of the said upper surface side flap 17a. doing. Since the edge part of the peripheral part side of the flap part easy-breaking line 22 is connected with the peripheral notch part 31, when opening the packaging box 10, following the breaking of the easy-breaking line 19, the flap part easy By breaking the break line 22, when the outer portion 38 is separated from the flap part easy break line 22 of the upper surface side flap 17a together with the break part 20, the end of the flap part easy break line 22 that makes it difficult to apply a breaking force. By connecting to the peripheral notch 31 at the part, it becomes possible to perform the separation at the terminal part cleanly and smoothly.

  In the present embodiment, at the lower end portion of one side plate 12a, both ends 32a and 32b are connected to a folding line 16h between the side plate 12a and the lower side flap 28a. 32 is provided. Like the easy break line 19 at the upper end portion, the easy break line 32 has a size that fits the tip of the finger. For example, the breakable portion has a substantially right trapezoidal shape with a vertical width of about 20 mm and a horizontal width of about 15 mm. 33 is provided so as to extend in a substantially right trapezoidal concave shape along the outer periphery thereof. Further, in the present embodiment, the easily breakable line 32 and the breakable portion 33 surrounded by the easily breakable line 32 are located in a portion adjacent to the other front plate 11b where the insertion flap 26a of the bottom main flap 26 is inserted inside. Is provided.

  Below one side plate 12a, one bottom side surface having a substantially right-angled trapezoidal shape with a vertical width of about 40 mm and a horizontal width of about 66.5 mm at the base end portion via a folding line 16h. The flaps 28a are connected. One bottom side flap 28a has an easy-to-break line 32 formed at the lower end portion of one side plate 12a and an end portion 32a on the side away from the other front plate 11b, similarly to the one top side flap 17a. The flap part easy break line 34 is connected and extended so as to reach the side edge part (periphery part) of the bottom face side flap 28a on the other front plate 11b side which has become the oblique side part. . The flap portion easy break line 34 provided on the bottom side flap 28a is also formed to include a dog-shaped cut 34a and an arc-shaped cut 34b that are continuously provided with a dotted portion interposed therebetween.

  Moreover, in this embodiment, the edge part of the peripheral part side of the bottom face side flap 28a of the flap part easy fracture line 34 is connected with the peripheral notch part 35 formed in the peripheral part of the bottom face side flap 28a. doing. Further, in the present embodiment, a lock notch 27 formed on the bottom main flap 26 is formed at the base end of the side edge on the other front plate 11b side that is the oblique side of one bottom side flap 28a. A lock piece 29 constituting a known lock mechanism is provided so as to protrude outward.

  In the present embodiment, a substantially horizontally long rectangular signboard portion 37 having a vertical width of about 40 mm and a horizontal width of about 67 mm is connected to the upper side of the other front plate 11b via a temporary folding curve 36, for example. Is provided. The signboard portion 37 maintains the state substantially flush with the other front plate 11b without bending the temporary folding curve 36, and when the hollow hexahedral packaging box 10 is assembled, The signboard portion 37 is provided so as to stand upward from the face plate 11b (see FIG. 1).

  Above the other side surface plate 12b, the other upper surface side having a substantially right trapezoidal shape with a vertical width of about 40 mm and a horizontal width of about 66.5 mm at the base end portion, for example, via a folding line 16a. The flaps 17b are connected. As a result, the other upper surface side flap 17b connected to the other side surface plate 12b facing the one side surface plate 12a provided with the easily breakable line 19 and the breakable portion 20 is the width of the pair of front and rear front plates 11a. It is provided with a length longer than half of the length. The packaging box 10 is closed by the other upper side flap 17b connected to the other side plate 12b extending longer than half the width of the pair of front and rear front plates 11a. Then, from the side edge portion opposite to the side edge portion where the fixing piece 21 is fixed to the fracture portion 20 of the one side plate 12a of the upper surface main flap, the opposite side edge portion and the other side plate. By inserting a finger through the gap between the upper edge of 12b, it is possible to effectively avoid that the housed article is forcibly exchanged. In addition, a lock piece 29 for locking the insertion flap 18a of the upper surface main flap 18 is provided at the base end of the side edge portion of the other upper surface side flap 17b on the other front plate 11b side which is the oblique side. Is provided to protrude.

  Below the other side surface plate 12b, the other bottom side surface having a substantially right trapezoidal shape, for example, having a vertical width of about 40 mm and a horizontal width of about 66.5 mm at the base end via a folding line 16h. The flaps 28b are connected. Further, the bottom surface side flap 28b of the other bottom side flap 28b has a base end portion on the side edge portion on the side of the other front plate 11b, and is well-known between the locking cut 27 formed in the bottom surface main flap 26. A lock piece 29 constituting the lock mechanism is provided so as to protrude outward.

  In this embodiment, the packaging box 10 can be easily assembled into a three-dimensional shape containing articles by a simple process using a known sealing device (box making machine), preferably using the blank 23 described above. . That is, for example, after an adhesive is applied to the adhesive bonding piece 25 connected to the left side of one front plate 11a, the adhesive bonding piece 25 is connected to the inner side surface along the side edge of the other side plate 12b via the adhesive. By joining to the side surface, as shown in FIG. 2, a rectangular hollow comprising a pair of front and rear front plates 11a and 11b and a pair of left and right side plates 12a and 12b bent along each longitudinal folding line 24. A cylindrical main body 13 having a cross-sectional shape is formed.

  After the cylindrical main body 13 is formed, the opening at the lower end thereof is closed using a pair of bottom side flaps 28a, 28b and a bottom main flap 26. That is, the bottom side flaps 28a, 28b on both sides connected to the lower side of the pair of side plates 12a, 12b are folded inward via the folding line 16h, and folded on the bottom side flaps 28a, 28b from below. The bottom main flap 26 is folded inward through the folding line 16e so as to overlap. Further, an insertion flap 26a connected to the tip of the bottom main flap 26 via a folding line 16f is inserted along the inner surface of the lower end portion of the other front plate 11b, and the locking flaps formed at both ends of the folding line 16f. The cuts 27 are respectively engaged with lock pieces 29 formed at the base end portions of the pair of bottom side flaps 28a and 28b. As a result, the opening at the lower end of the cylindrical main body 13 is covered and closed by the bottom surface portion 15 including the pair of bottom surface side flaps 28 a and 28 b and the bottom surface main flap 26.

  When the opening at the lower end of the cylindrical main body 13 is closed, the article is accommodated in the cylindrical main body 13. That is, in this embodiment, as an article, for example, a cylindrical container for cosmetics filled and accommodated with cosmetics is fit in the inside of the cylindrical main body 13 from the bottom side to the upper end through the opening. Insert to place.

  When the article is accommodated in the cylindrical main body 13 with the bottom surface portion 15 closed, the opening at the upper end of the cylindrical main body 13 is closed using the pair of upper surface side flaps 17 a and 17 b and the upper surface main flap 18. That is, the upper side flaps 17a and 17b on both sides connected to the upper side of the pair of side plates 12a and 12b are folded inward via the folding line 16a and are folded on the upper side flaps 17a and 17b from above. The bottom main flap 18 is folded inward through the folding line 16b so as to overlap. Further, an insertion flap 18a connected to the tip of the upper surface main flap 18 via a folding line 16c is inserted along the inner surface of the upper end portion of the other front plate 11b, and the base end portions of the pair of upper surface side flaps 17a and 17b. The lock pieces 29 are respectively engaged with the lock pieces 29.

  Thereafter, the fixing piece 21 provided on the upper surface main flap 18 is bent inward via the folding line 16d, and an easily breakable line 19 provided on the upper end portion of one side plate 12a using an adhesive. Is adhered to the fractured part 20 surrounded by Further, the bottom fixed piece 30 provided on the bottom main flap 26 is bent inward via the folding line 16g, and the bottom easily breakable line provided on the lower end portion of the one side plate 12a using an adhesive. Adhering to the broken part 32 surrounded by 31 from the outside. The step of applying these adhesives and the bonding step can be performed at the same time on the upper end portion and the lower end portion of the same side plate 12a.

  By these, it becomes possible to cover the opening at the lower end portion of the cylindrical main body 13 with the bottom surface portion 15 including the pair of bottom surface side flaps 28a and 28b and the bottom surface main flap 26, and to block the tube body firmly and stably. Further, the opening at the upper end of the cylindrical main body 13 in which the article is accommodated is covered with the upper surface portion 14 composed of a pair of upper surface side flaps 17a, 17b and an upper surface main flap 18, and closed in a firm and stable state. In addition, a cosmetic product 50 in which a cylindrical cosmetic container is packed inside a hexagonal packaging box 10 is commercialized.

  Moreover, since the packaging box 10 of this embodiment is provided with the simple structure as mentioned above and can also simplify an assembly operation, it becomes possible to manufacture the cosmetic product 50 efficiently.

  On the other hand, in order to take out the packaged cosmetic container from the packaging box 10, as shown in FIG. 4, as shown in FIG. A force to be pushed by the fingertip is applied to the breaking portion 20 surrounded by the line 19. As a result, the easily breakable line 19 is broken, so that the breakage part 20 is pushed into the inside of the packaging box 10 together with the fixing piece 21, and the opening formed inside the easy breakage line 19 by being pushed. It is possible to insert the fingertip into the lower side of the upper main flap 18 that closes the opening at the upper end of the packaging box 10 through the hole 39.

  Thereafter, if a force for lifting the upper surface main flap 18 is applied by the inserted fingertip, the upper surface main flap 18 is broken while the flap portion easy break line 22 is broken following the easy break line 19 as shown in FIG. Can be easily opened, and the upper side side flaps 17a and 17b on both sides can be opened to easily take out the cosmetic container from the packaging box 10. Further, even after the easy-break line 19 is broken and the cosmetic container is taken out, the upper surface main flap 18 maintains the shape as it is, so that the fixing piece 21 or the upper surface side fixed to the fixing piece 21 as necessary. The outer portion 38 of the flap portion 17a of the flap portion 17a is appropriately removed, and the upper main flap 18 is easily opened and closed, and the cosmetic container is subsequently accommodated in the packaging box 10 or removed from the packaging box 10. It becomes possible to do.

  In the present embodiment, the cosmetic container accommodated in the packaging box 10 preferably has a cylindrical shape, and the easily breakable line 19 is formed when accommodated in the six-sided packaging box 10. Since a gap of a considerable size is held behind the portion of the one side plate 12a that is close to the other front plate 11b, the breakable portion 20 is pushed by the fingertip to break the easily breakable line 19 The operation can be performed more smoothly.

  And according to the packaging box 10 and the cosmetic product 50 of the present embodiment having the above-described configuration, it is possible to open by breaking the easily breakable line 19, and after opening and closing the article, The opening and closing operation can be performed smoothly, and the easily breakable line 19 and the portion where the easily broken line is broken are made inconspicuous so that the appearance is not impaired.

  That is, according to the present embodiment, the packaging box 10 has the easily breakable line 19 connected to the folding line 16a between the both end portions 19a and 19b and the upper surface side flap 17a at the upper end portion of one side plate 12a. It is provided so as to extend in a concave shape large enough to accommodate the tip of the finger, and fits in a rupture portion 20 surrounded by an easily breakable line 19 of one side plate 12a on the side edge portion of the upper surface main flap 18. A fixing piece 21 having a size protrudes laterally through the folding line 16d and is provided at a position corresponding to the breaking portion 20. The fixing piece 21 has the breaking portion 20 in a state where the upper surface portion 14 is formed. It is glued on the outside from the outside.

  Therefore, according to the present embodiment, the packaging box 10 can be opened for the first time by breaking the easily breakable line 19 and pushing the broken portion 20 to which the fixed piece 21 is fixed, and the broken portion 20 is pushed in. After being opened, since it can be determined at a glance that the easily breakable line 19 is broken, it is possible to effectively exhibit the falsification preventing function.

  Further, even after the easy-breaking line 19 is broken and the packaging box 10 is opened, the upper surface main flap 18 maintains the shape as it is. The container can be accommodated in the packaging box 10 or taken out from the packaging box 10.

  Further, the easy break line 19 and the break portion 20 are formed only in a small area in the upper end portion of the one side plate 12a so that the fingertip can be accommodated. It is possible to effectively avoid the loss of aesthetics not only before opening the box 10 but also after opening the box 10. In particular, in the state before the packaging box 10 is opened, the breakage portion 20 is covered and the fixing pieces 21 having substantially the same shape as this are fixed, so that the aesthetics of the packaging box 10 can be improved.

  FIG. 6 shows a packaging box 40 according to another embodiment of the present invention. The packaging box 40 shown in FIG. 6 is different from the packaging box 10 of the said embodiment that the signboard part which stands up from the other front board 11b is not provided. Other configurations are the same as those of the packaging box 10 of the above embodiment. The packaging box 40 shown in FIG. 6 also has the same effects as the packaging box 10 of the above embodiment.

  FIG. 7 shows a packaging box 41 according to still another embodiment of the present invention. In the packaging box 41 shown in FIG. 7, the insertion piece 42 protrudes laterally through the folding line 16 i at the side edge opposite to the side edge where the fixing piece 21 of the upper surface main flap 18 is provided. The fold line 16a between the one side plate 12a provided with the easily breakable line 19 and the rupture portion 20 and the upper side flap 17 of the other side plate 12b facing the fold line 16a is inserted into the insertion piece 42. In the packaging box 10 of the above embodiment, the insertion slit 43 is provided at a position corresponding to the insertion slit 43 and the insertion piece 42 is inserted and locked in the insertion slit 43 in a state where the upper surface portion 14 is formed. Is different. Other configurations are the same as those of the packaging box 10 of the above embodiment.

  The packaging box 41 shown in FIG. 7 also exhibits the same function and effect as the packaging box 10 of the above embodiment, and also exerts a locking function by inserting and locking the insertion piece 42 into the insertion slit 43. Thus, the side edge of the upper surface main flap 18 on the side opposite to the side on which the fixing piece 21 is provided tends to float before the easy-break line 19 is broken and the packaging box 41 is opened. Can be effectively suppressed, and the packaging box 41 can be closed in a more stable state.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the easily breakable line and the breakable portion are not necessarily provided only at the upper end portion of one side plate of the pair of left and right side plates, and can be provided at the upper end portions of both side plate. Further, the easily breakable line and the breakable portion are not necessarily provided in a portion adjacent to the other front plate, and can be provided in an intermediate portion of the upper end portion of the side plate. Furthermore, it is not always necessary to provide a bottom easily breakable line or a broken portion at the lower end portion of at least one of the pair of left and right side plates. The blank constituting the packaging box is not necessarily a paper sheet material, and may be a plastic sheet material or the like. The article stored in the packaging box may be an article such as a cosmetic container filled with cosmetics and other cosmetics, medicines, confectionery, stationery, etc., and does not have a cylindrical shape. May be.

  Further, a flap part easy break line 22 provided so as to extend to reach the peripheral part of the upper surface side flap 17a by connecting to the end of the easy break line on the side away from the other front plate is shown in FIG. The thing of various forms as shown to (a)-(h) is employable. By adopting these forms as the flap part easy break line 22, the flap part easy break line 22 including the flap part easy break line 22 of the above-described embodiment is followed by breaking the easy break line 19. It is possible to effectively avoid the upper surface side flap 17a from being broken in the direction away from the flap portion easy break line 22 when breaking the flap. In particular, the flap part easy break line 22 is covered with the upper surface main flap and cannot be seen when the upper surface part 14 is closed. Therefore, even if the flap part easy break line 22 is not directly visible, the flap part easy break line 22 is not visible. It is important to guide the direction in which the upper side flap 17a is broken so as not to deviate from the line 22. Moreover, by making the terminal part of the flap part easy break line 22 into the side edge part of the upper surface side flap 17a, the length for breaking the flap part easy break line 22 can be shortened, and it can be easily opened, and at the time of opening. Finger feel is also improved.

  Further, as shown in FIGS. 9 (a) and 9 (b), along the folding line 16a between one side plate 12a and the upper side flap 17a, or in close proximity thereto, a cut line 44 is inserted. Thus, the breakable portion 20 can be easily removed after the breakable line 19 is broken. Furthermore, as shown in FIG. 10, the lock piece 45 is protruded to the front end side of the side edge portion of the upper surface side flap 17a from the flap portion easy break line 22, and the upper surface main flap 18 and the insertion flap 18a are By providing the locking concavo-convex portion 46 close to the folding line 16c, the upper main flap 18 is again opened after the easy-break line 19 is broken and the packaging box 10 is opened together with the lock piece 29. It can also function as a lock mechanism when closed.

10, 40, 41 Packaging box 11a One front plate 11b The other front plate 12a One side plate 12b The other side plate 13 Tubular main body 14 Upper surface portion 15 Bottom surface portions 16a, 16b, 16c, 16d, 16e, 16f, 16g , 16h Folding lines 17a, 17b Upper side flap 18 Upper surface main flap 18a Insertion flap 19 Easy break line 19a, 19b End part of easy break line 20 Broken part 21 Fixed piece 22 Flap part easy break line 23 Blank 24 Longitudinal folding line 25 Adhesive joint piece 26 Bottom main flap 26a Insertion flap 27 Lock cut 28a, 28b Bottom side flap 29 Lock piece 30 Bottom fixing piece 31 Periphery notch 32 Bottom easy break line 33 Break part 34 Flap part easy break line 35 Perimeter cut Notched portion 36 Temporary folding curve 37 Signboard portion 38 Upper side side flaps Outer portion 42 than the butt portion easy breaking line Insertion piece 43 Insertion slit 50 Cosmetic product

Claims (10)

A packaging box comprising a pair of front and rear front plates, a pair of left and right side plates, an upper surface portion and a bottom surface portion, and having a hollow hexahedral shape,
The upper surface portion folds inward the upper side flaps connected to the upper end portions of the pair of left and right side plates via a folding line, and is connected to the upper end portion of one front plate via the folding curve. It is formed by folding the main flap and inserting the insertion flap connected to the front end portion of the upper main flap via a folding line inside the upper end portion of the other front plate,
At the upper end portion of at least one of the pair of left and right side plates, an easily breakable line connecting both ends to a fold line between the upper surface side flaps is provided extending in a concave shape ,
At the side edge portion of the upper surface main flap, a fixing piece having a size that fits in the break portion surrounded by the easy break line of the side plate protrudes laterally through a folding line and corresponds to the break portion. It is provided in
The fixing piece is a packaging box in which the upper surface portion is formed and is adhered to the fractured portion by being overlapped from the outside.   The packaging box according to claim 1, wherein the easy break line and the break portion are provided in a portion adjacent to the other front plate.   The flap portion easy break line is provided so as to extend to reach the peripheral edge portion of the upper surface side flap, connected to the end portion of the easy break line on the side away from the other front plate. 2. Packaging box according to 2.   4. The packaging box according to claim 3, wherein an end portion of the upper surface side flap on the peripheral edge side of the flap easy break line is connected to a peripheral notch formed in a peripheral edge portion of the upper surface side flap.   On the side edge of the upper surface main flap opposite to the side edge where the fixing piece is provided, an insertion piece is provided projecting laterally through a folding line, and the easy break line and The folding curve between the one side plate provided with the rupture portion and the upper side flap of the other side plate facing the side plate is provided with an insertion slit at a position corresponding to the insertion piece, The packaging box of any one of Claims 1-4 in which the said insertion piece is inserted and latched by the said insertion slit in the state in which the said upper surface part was formed.   The upper side flap connected to the other side plate facing the one side plate provided with the easily breakable line and the rupture portion extends longer than half the width of the front and rear pair of front plates. The packaging box of any one of Claims 1-5 provided. The bottom surface portion folds inward the bottom side flaps connected to the lower end portions of the pair of left and right side plates via a folding line, and is connected to the lower end portion of one front plate via the folding curve. It is formed by folding the main flap and inserting the insertion flap connected to the tip of the bottom main flap via the folding line inside the lower end portion of the other front plate,
At least one lower end portion of the pair of left and right side plates is provided with an easily breakable line extending in a concave shape at both ends connected to a folding line between the bottom side flaps,
At the side edge portion of the bottom main flap, a fixing piece having a size that fits in the break portion surrounded by the easy break line of the side plate protrudes laterally through a folding line and corresponds to the break portion. It is provided in
The packaging box according to any one of claims 1 to 6, wherein the fixing piece is adhered to the fracture portion from the outside in a state where the bottom surface portion is formed.   The packaging box according to any one of claims 1 to 7, wherein a signboard portion is provided upright from the other front plate.   Cosmetic product in which a container for cosmetics is packed in the packaging box according to any one of claims 1 to 8.   The cosmetic product according to claim 9, wherein the cosmetic container is a cylindrical container.

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