JP2006176149A - Packaging box with resealable function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box with a resealable function capable of easily performing an initial sealing work and a resealing work without using any adhesive tape or any adhesive, easily performing the unsealing or re-unsealing operation, preventing a lid plate from being easily opened in an initial sealable state or a re-sealable state, and ensuring the sealing reliability. <P>SOLUTION: First and second lid plate parts 6, 7 respectively extending from a pair of side plate parts 1, 2 opposing each other are provided. An insertion flap 14 of the first lid plate part 6 overlapped on the second lid plate part 7 is inwardly folded, and fitted and locked to an insertion port 21 of the second lid plate part 7 in a sealing manner. A sealed packaging box B1 is unsealed by breaking a zipper 18 of the first lid plate part 6. The second lid plate part 7 is mounted over a remaining portion of the broken first lid plate part 6, and an insertion flap 15 of the second lid plate part 7 is fitted and locked to an insertion port 20 of the first lid plate part 6 in a sealing manner. The re-sealed packaging box B1 is re-sealed by breaking a zipper 19 of the second lid plate part 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is made of paper or plastic such as cardboard or paperboard for storing various articles including mail order packaging boxes used for shipping mail-ordered merchandise. The present invention relates to a packaging box with a resealing function that can be resealed.

As this type of packaging box with a resealable function, there are conventionally known various configurations, but basically, the lid plate is extended from a pair of opposing side plate portions and stacked in a double-up and down manner. At the time of opening, the upper lid plate is broken by a zipper or a perforation, and the lower lid plate alone (Patent Document 1) or the lid plate and the remaining portion of the broken lid plate (Patent Documents 2 to 2) 4) It can be resealed.
Japanese Utility Model Publication No. 57-162110 Japanese Utility Model Publication No. 5-65826 JP-A-5-124638 However, since these conventional packaging boxes with a resealing function can be easily opened from the resealed state, the cover plate is attached with an adhesive tape or the like to prevent opening when returning. It takes a lot of time and labor to complete the work, and adhesive tape and packing materials are often cut in ordinary households, which is very inconvenient for the returning user. It was. Further, even in the initial sealing, the method of adhering the top and bottom cover plates to each other with a double-sided adhesive tape or an adhesive (for example, Patent Documents 2 to 4) requires time and effort for the sealing operation and increases the material cost. Contrary to resource recycling, if adhesive tape is used, there is a problem that sorting work is required at the time of disposal.

  In view of the above circumstances, the present invention can easily perform initial sealing and resealing operations without using an adhesive tape or an adhesive as a packaging box with a reseal function, and can be easily opened and resumed. In addition, an object of the present invention is to provide a device that cannot easily open the cover plate in the initial sealing state and the resealing state and can ensure the reliability of the sealing.

  In order to achieve the above object, a packaging box with a resealable function according to the invention of claim 1 includes a first and a second plate extending from a four-side plate and a bottom plate, and a pair of opposite side plates of the four-plate plate. Each of the first and second cover plate portions is inserted into the insertion port of the base plate side and the insertion port of the other cover plate portion. A second lid plate having locking means for locking the insertion flaps so that they cannot be pulled out in a state of being inserted into the insertion ports. The insertion flap of the first lid plate overlapped on the part is inserted and locked into the insertion port of the second lid plate and sealed, and the sealed packaging box is broken for opening the first lid plate Is opened by breaking the part, but the second lid plate part is put on the remaining part of the broken first lid plate part, and the insertion flap is covered. It is configured so that it can be resealed by being inserted and locked in the insertion opening of one lid plate portion, and the resealed packaging box can be reopened by breaking the breaking portion for opening of the second lid plate portion. Yes.

  According to a second aspect of the present invention, in the packaging box with a resealing function according to the first aspect, the insertion flap has a constricted portion on a proximal end side, and an insertion opening corresponding to the insertion flap is along the proximal end edge. A slit is formed, and a latching portion recessed into the distal end side of the lid plate portion is formed on the center side of the slit, and the lateral width of the latching portion is narrower than the entire width of the insertion flap and the lateral width of the constricted portion The locking means is set to be the same or slightly wider, and when the insertion flap is inserted into the slit of the lid plate portion in the closed state, the constricted portion is fitted into the engagement portion, and the insertion portion is inserted. The both side projecting portions of the flap are arranged on both sides of the engaging portion on the back side of the lid plate portion.

  According to a third aspect of the present invention, in the packaging box with a resealing function according to the second aspect of the invention, a slit is formed in the insertion slot, and the remaining portion of the slit rises continuously from the side plate in the closed state. The wall portion is formed.

  Further, the invention according to claim 4 is the packaging box with a resealing function according to claim 3, wherein the proximal end edge of the insertion flap having the constricted portion is closer to the proximal end side of the lid plate portion than the distal end edge of the lid plate portion. When the insertion flap is bent inward and inserted into the slit, the leading edge of the lid plate portion protruding on both sides of the bent base edge comes into contact with the dam wall portion, The constricted part of the insertion flap is locked so as not to be detached from the engaging part of the slit.

  On the other hand, the invention of claim 5 is the packaging box with a resealing function according to claim 1, wherein the insertion slot has a bent slit, and the locking means is forcibly deformed and inserted into the slit. It is assumed that the deformation will naturally return in the box.

  According to the packaging box with a resealing function according to the invention of claim 1, in both the initial sealing operation and the resealing operation, one insertion flap of the first and second cover plate portions is inserted into the other insertion port. In addition, it is easy to operate and has good workability, and since no adhesive tape or adhesive is required, material costs can be reduced and resources can be saved.In addition, in the initial sealing and resealing state, an insertion flap is inserted by the locking means. Since it cannot be removed easily from the insertion slot and the lid plate cannot be opened easily, it can prevent the removal and replacement of articles by malicious means during the delivery process, and contamination with foreign matter, resulting in high reliability of sealing. In addition, opening and reopening operations can be easily performed by breaking the breaking portion for opening. Furthermore, since the cover surface is flat in both the initial sealing state and the resealing state, a cover sheet necessary for delivery by mail or courier can be neatly pasted on the cover surface.

  According to the second aspect of the present invention, only by inserting the insertion flap into the slit of the lid plate portion in the closed state, the constricted portion is fitted into the engaging portion of the slit, and the both overhang portions are the Since it is arranged on the back side of the cover plate part on both sides of the engagement part, the insertion flap is locked so that it cannot be pulled out from the slit, so no special locking operation is required, and the structure of the locking part is extremely Since it is simple, the box can be easily manufactured.

  According to the invention of claim 3, when the insertion flap having the constricted portion on the proximal end side is inserted into the slit of the insertion port, the insertion flap is simply brought into contact with the side plate portion and held down as it is. Fits into the slit and the constricted part fits into the engaging part of the slit, so that the sealing operation becomes easier.

  According to the invention of claim 4, when the insertion flap is bent inward and inserted into the slit, the leading edge of the upper cover plate portion with the insertion flap comes into contact with the weir wall portion, and the insertion Since it functions as a stopper that prevents the flap constriction part from moving forward from the engagement position with the engagement part of the slit, the locked state can be maintained even if the cover plate side bends due to external force. There is no concern that the insertion flap will be pulled out of the slit during handling.

  According to the invention of claim 5, when sealing, the insertion flap is forcedly deformed into the bent slit-shaped insertion port, so that the deformation of the insertion flap returns naturally within the box. A certain locked state can be obtained.

  Hereinafter, an embodiment of a packaging box with a resealing function according to the present invention will be specifically described with reference to the drawings. FIGS. 1-10 shows packaging box B1 of 1st embodiment, FIGS. 11-14 shows packaging box B2 of 2nd embodiment, respectively.

  The packaging box B1 of the first embodiment is configured by a single sheet S1 obtained by punching a sheet-like raw material made of corrugated cardboard, cardboard, or plastic, as shown in the developed state of FIG. In this sheet S1, front and rear side plate portions 1, 2, left and right side plate portions 3, 4 and a gluing flap 5 are arranged side by side along vertical folding lines a to d. And, the upper edge of the front side plate portion 1 is provided with a second lid plate portion 7 via a horizontal fold line e, and the upper edge of the rear side plate portion 2 is provided with a first lid plate portion 6 via a horizontal fold line f. Lid receiving flaps 8 and 9 are respectively extended at the upper edges of the left and right side plate portions 3 and 4 via horizontal fold lines g and h, and further at the lower edges of these side plate portions 1 to 4 are horizontal fold lines i to m. , Bottom plate flaps 10 to 13 are connected to each other.

  Thus, the first and second cover plate portions 6 and 7 are set to have the same outer dimensions, and have a horizontally long tongue-like insertion flap at the center position on the tip side via the horizontal folding lines n and o. 14 and 15 are continuously provided, and slits 16 and 17 are formed at the center position of each base end side along the base end edge as an insertion port. Further, a lid plate portion is formed at the center side of each slit 16 and 17. Engagement portions 16a and 17a that are recessed into the front end sides of 6 and 7 are formed by punching in the form of horizontally elongated strips. Further, a band-like zipper 18 extending between the left and right side edges is provided as a breaking portion for opening at a position slightly closer to the front end side of the first lid plate portion 6, and the zipper 18 is opened at the center finger hooking hole when opening. It is designed to be cut from left and right from 18a. On the other hand, a trapezoidal zipper 19 extending from the central position slightly closer to the distal end side to the proximal end of the insertion flap 15 is provided at the center of the distal end side of the second lid plate portion 7 as the opening breaking portion. Sometimes, the zipper 19 is inserted into the insertion flap 19 from the inner finger hole 19a.

  The insertion flaps 14 and 15 have the same size and shape, and the horizontal fold lines n and o forming the base edge are lower than the front edges 6a and 7b of the bottom lid parts 6 and 7 and closer to the base side of the cover plate part. The narrow base portions 14a and 15a having narrow left and right widths are located on the lower base end side. On the other hand, the slits 16 and 17 are also of the same size and shape, their left and right full widths are set to be the same or slightly wider than the full widths of the insertion flaps 14 and 15, and the left and right widths of the engaging portions 16a and 17a are the insertion flaps 14 and 15 respectively. Is set to be equal to or slightly wider than the left and right widths of the constricted portions 14a and 15a. Further, the lateral folding lines e and f are interrupted at the cut portions of the slits 16 and 17 on the base end sides of the cover plate portions 6 and 7, whereby the remaining portions of the slits 16 and 17 are removed from the front and rear side plate portions 1 and 2. The strip-like dam wall portions 20 and 21 rising continuously are configured.

  In order to produce the packaging box B1 from such a sheet S1, the front and rear side plate portions 1, 2 and the left and right side plate portions 3, 4 are folded along the vertical folding lines a to d, and the gluing flap 5 is attached to the inner surface of the right side plate portion 4. Are attached to the corner plate of the bottom plate flaps 12 and 13 with 45-degree oblique folding lines p and q, and the adjacent bottom plate portions The bottom plate portion is formed by bonding to the flaps 10 and 11 for use. The packaging box B1 thus obtained is a bottom lock type assembly box, and is folded into a parallelogram shape before use, with the quadrilateral frame portion flattened into a rectangular shape before use. Assemble in a box shape.

  In the assembled packaging box B1, the first and second lid plates 6 and 7 and the left and right lid receiving flaps 8 and 9 are upright or open outward, and necessary articles such as mail order items are placed in the box from above. To load. Then, the lid receiving flaps 8 and 9 are folded inward, the second lid plate portion 7 is inserted, the flap 15 is folded inwardly, and then the second lid as shown in FIG. The first lid plate portion 6 is folded on the plate portion 7 and the insertion flap 14 bent inwardly is inserted into the slit 17 of the second lid plate portion 7 so as to seal as shown in FIG. Deliver to customers as a condition.

  In the above sealing, the first and second cover plate portions 6 and 7 have the same shape and dimensions other than the zippers 18 and 19, and the proximal end of the insertion flap 14 is from the distal end edge 6 a of the first cover plate portion 6. Since the insertion flap 14 is inserted into the slit 21 of the second lid plate portion 7, as shown in FIG. 4, the bent base end edge is the front edge of the slit 17, that is, the front plate portion. 1 cannot reach the inner surface position, and the constricted portion 14a comes to a position where the constricted portion 17a is fitted. Therefore, in this fitting position, as shown in FIGS. 5 and 6, the projecting portions 14 b and 14 b on both the left and right sides of the insertion flap 14 wrap around the back side of the second lid plate portion 7. The insertion flap 14 cannot be removed from the slit 17, so that the first cover plate 6 cannot be opened upward and is surely sealed.

  Further, the remaining cut portion of the slit 17 rises as a dam wall portion 21 following the front plate portion 1, while the distal end edge 6 a of the first lid plate portion 6 protrudes from the proximal end edge bent inside the insertion flap 14. Thus, in the sealed state, the leading edge 6a abuts on the dam wall 21 on both sides of the constricted portion 14a of the insertion flap 14, and acts as a spacer that keeps the gap between the insertion flap 14 and the inner surface of the front side plate portion 1 in a protruding manner. Therefore, even if the lid side bends due to an external force during handling of the packaging box B1, there is no fear that the constricted portion 14a of the insertion flap 14 will come off from the engaging portion 17a of the slit 17, and a stable sealed state is ensured. And high sealing reliability is obtained. Further, when the first lid plate portion 6 is folded on the second lid plate portion 7 for sealing, the tip of the insertion flap 14 bent inward is shown in FIG. Since the insertion flap 14 is brought into contact with the dam wall 21 and the first cover plate 6 is pressed as it is, the insertion flap 14 is slidably contacted with the inner surface of the dam wall 21 and fitted into the slit 17. A positioning operation for aligning the tip of the insertion flap 14 is unnecessary, and the workability of sealing is improved.

  In order to open the sealed packaging box B1, the zipper 18 of the first lid plate portion 6 may be cut off from the central finger-hanging portion 18a to the left and right as shown in FIG. As a result, the first lid plate portion 6 is divided into the distal end side and the proximal end side, so that the proximal end side is opened and then the second lid plate portion 7 is opened, and the stored article can be taken out. it can. Thus, since the inserted flap 14 can be pulled out from the slit 17 by bringing the separated front end side of the first lid plate portion 6 toward the dam wall portion 21 side, it can be easily removed integrally with the inserted flap 14. it can.

  Next, when re-sealing for returned goods etc. of the taken-out article, as shown in FIG. 8, with the remaining base side of the first lid plate portion 6 facing down, as opposed to the initial sealing, The second lid plate portion 7 may be covered thereon, and the insertion flap 15 bent inward may be inserted into the slit 16 of the first lid plate portion 6 to form a sealed state as shown in FIG. The relationship between the insertion flap 15 and the slit 16 and the dam wall portion 20 in this reseal is exactly the same as the relationship between the insertion flap 14 and the slit 17 and the dam wall portion 21 in the above-described initial sealing. Therefore, the resealing operation can be performed very easily as in the case of the initial sealing, and the resealed packaging box B1 cannot open the second lid plate portion 7 upward, and is in a reliable and stable sealing state. Reliability is obtained.

  As shown in FIG. 10, the re-sealing from the resealed state may be performed by breaking the zipper 19 of the second lid plate portion 7 from the finger hook portion 19 a and cutting it together with the insertion flap 15. Thereby, the 2nd cover board part 7 can be opened upwards, and the accommodated goods can be taken out.

  As described above, this packaging box B1 does not require an adhesive tape or an adhesive in any of the initial sealing and the resealing, so that the material cost can be reduced and the resources can be saved, and the lid plate portion can be simplified. Since it cannot be opened, it is possible to prevent the removal or replacement of articles due to malicious intentions during the delivery process, contamination with foreign matters, etc., and high reliability of sealing can be obtained. In addition, since the cover surface is flat in both the initial sealing state and the resealing state, a cover sheet necessary for delivery by mail or courier can be neatly pasted on the cover surface.

  The packaging box B2 of the second embodiment is different from the packaging box B1 of the first embodiment in the structure of the insertion flap and the insertion port in the cover plate part, but the structure of the four-circumferential frame part (peripheral wall part) and the bottom part is substantially the same. The same. Accordingly, in the following description, the components other than the insertion flap and the insertion port of the packaging box B2 will be denoted by the same reference numerals as those of the packaging box B1 of the first embodiment, and description thereof will be omitted.

  FIG. 11 shows the sheet S2 constituting the packaging box B2. This sheet S2 is obtained by punching and pressing a sheet-like raw material made of corrugated cardboard, cardboard, or plastic in the same manner as the sheet S1 in the case of the first embodiment, and includes front and rear side plate portions 1, 2, left and right side plate portions 3, 4, The gluing flap 5, the first lid plate portion 6, the second lid plate portion 7, the lid receiving flaps 8 and 9, and the bottom plate flaps 10 to 13 have vertical ridges a to d and lateral fold lines e to m. It is connected through.

  The first and second bottom lid portions 6 and 7 are respectively provided with a pair of left and right inverted L-shaped insertion flaps 22 and 23 connected to each other at the center on the front end side via horizontal folding lines r and s. At the same time, a pair of left and right slits 24 and 25 bent into a square shape as an insertion port are formed in the center on the base end side. Accordingly, the pair of insertion flaps 22 and 22 and the pair of insertion flaps 23 and 23 project in a direction in which the protruding pieces 22a and 22a, and 23a and 23a are opposite to each other. In addition, the pair of slits 24 and 24 and the pair of slits 25 and 25 have half-shaped half-sides along the base edges of the bottom lid parts 6 and 7, that is, the horizontal folding lines e and f, respectively. They are set so that they are arranged in a C shape.

  The bottom lid portions 6 and 7 are provided with the same zippers 18 and 19 as in the first embodiment, and the zipper 19 of the second bottom lid portion 7 is cut out integrally with the insertion flaps 23 and 23. It has become. Further, on the base end sides of the bottom lid portions 6 and 7, the horizontal folding lines e and f are interrupted at the cut portions of the respective half portions along the base end edges of the slits 16 and 17, whereby each of the slits 24 and 25 is cut off. The stripped remaining portions of the half constitute strip-like dam wall portions 26 and 27 rising continuously from the front and rear side plate portions 1 and 2.

  In order to manufacture the packaging box B2, the above-described sheet S2 is used to form a four-sided frame portion composed of the front and rear side plate portions 1 and 2 and the left and right side plate portions 3 and 4, as in the case of the sheet S1 in the first embodiment. At the same time, if the bottom plate flaps 10 and 13 and the bottom plate flaps 11 and 12 are bonded to each other, the bottom frame assembly box is assembled in a box shape by expanding the quadrilateral frame portion into a rectangular shape from a flat folded form before use. Good.

  When using the assembled packaging box B2, the required items such as mail-order products from above with the first and second lid plates 6 and 7 and the left and right lid receiving flaps 8 and 9 upright or open outward. After the lid is loaded in the box, the lid receiving flaps 8 and 9 are folded inward, the second lid plate portion 7 is inserted, and the flaps 23 and 23 are folded inward. Next, when the first lid plate portion 6 is folded on the second lid plate portion 7, as shown in FIG. 12, the insertion flaps 22, 22 bent inward are connected to the second lid plate portion 6. In accordance with the shape of the slits 25, 25, the projecting piece portions 22a, 22a are forcibly bent inward so as to form a C-shape with each other. To the customer as a sealed state as shown in

  In this sealed state, the insertion flap 22 inserted into each slit 25 returns to the direction in which the direction of the projecting piece 22a that has been forcibly bent at the time of insertion naturally reduces the bending in the box. As shown in FIG. 14, the projecting piece 22 a comes out of the shape of the slit 25 and turns around to the back side of the second lid plate portion 7, so that both insertion flaps 22 and 22 are slit 25. , 25 is locked so that it cannot be removed. Therefore, the packaging box B2 is in a reliable sealed state in which the first lid plate portion 6 cannot be opened upward.

  Note that the remaining cut portion of the half of each slit 25 rises as a weir wall 25 following the front plate 1, and the first lid 6 is folded onto the second lid 7 for sealing. When inserting, since the front ends of the insertion flaps 22, 22 are positioned in contact with the weir walls 25, 22, the insertion operation into the slits 25, 25 becomes very easy, Workability is improved.

  In order to open the sealed packaging box B2, the zipper 18 of the first cover plate portion 6 is cut from the center finger-hanging portion 18a to the left and right as in the case of the first embodiment described above. Well, it is possible to easily take out the article inside by sequentially opening the proximal end side of the first lid plate portion 6 and the second lid plate portion 7 thus separated.

  Next, when re-sealing for the return of the taken-out article, etc., the separated front end side of the first cover plate portion 6 is removed integrally with the insertion flaps 22 and 22 and reverse to the initial sealing. The remaining base side of the first lid plate portion 6 is faced down, and the second lid plate portion 7 is covered thereon, and in the same manner as the initial sealing, the slits 24 of the first lid plate portion 7 The insertion flaps 23, 23 bent inward of the second lid plate portion 7 are forcibly bent inward so that the projecting piece portions 23 a, 23 a form a square shape. In such a state, each may be inserted into the slit 24. This resealing operation can be performed very easily as with the initial sealing.

  Since the resealed packaging box B2 is locked so that the insertion flaps 23, 23 cannot be removed from the slits 24, 24 by returning the direction of the projecting portions 23a, 23a in the same manner as in the initial sealing. The lid plate portion 7 cannot be opened upward, and a reliable and stable sealing state is obtained, and high sealing reliability is obtained. Further, the re-sealing from the resealed state is the same as in the first embodiment described above, where the zipper 19 of the second lid plate portion 7 is broken from the finger hook portion 19a and cut off integrally with the insertion flaps 23, 23. That's fine.

  Even in the packaging box B2 of the second embodiment, neither the initial sealing nor the resealing requires an adhesive tape or an adhesive, so that the material cost can be reduced and the resources can be saved, and the lid plate can be easily opened. Therefore, high reliability of sealing is obtained, and the lid surface is a flat surface that can be easily pasted such as a delivery cover for delivery in both the initial sealing state and the resealing state.

  In addition, the packaging box with a resealing function of the present invention has various shapes other than those exemplified in the first and second embodiments described above as the insertion flaps and insertion ports of the first and second cover plate portions. A locking means can be employed. Thus, in the first and second embodiments, the insertion flap used for the initial sealing and the resealing and the insertion port have the same structure. For example, the insertion flap shown in the first embodiment and the second embodiment Different insertion structures may be employed for the initial sealing and the resealing, such as adopting one of the engagement structures of the insertion port for the initial sealing and the other for the resealing. Moreover, the breaking part for opening provided in the first and second cover plate parts is constituted by the zippers 18 and 19 having different breaking directions in the packaging boxes B1 and B2 of the first and second embodiments. It is also possible to adopt a structure in which the direction of the line and the running pattern can be set in various ways, and a cut portion is not generated only by breaking the broken line such as a perforation. In addition, in the present invention, various design changes can be made in addition to the embodiment with respect to the detailed configuration such as the shapes of the first and second lid plates and lid receiving flaps, the shape of the four-side plate, and the structure of the bottom plate.

It is a top view which shows the sheet | seat form before the assembly of the packaging box with a resealable function which concerns on 1st embodiment of this invention. It is a perspective view which shows the initial sealing operation of the packaging box. It is a perspective view of the initial sealing state of the packaging box. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. It is arrow sectional drawing of the VV line | wire of FIG. FIG. 4 is a cross-sectional view taken along line VI-VI in FIG. 3. It is a perspective view which shows opening operation of the packaging box. It is a perspective view which shows the resealing operation of the packaging box. It is a perspective view of the re-sealing state of the packaging box. It is a perspective view which shows the restart sealing operation of the packaging box. It is a top view which shows the sheet | seat form before the assembly of the packaging box with a resealable function which concerns on 2nd embodiment of this invention. It is a perspective view which shows the initial sealing operation of the packaging box. It is a perspective view of the initial sealing state of the packaging box. It is arrow sectional drawing of the XIV-XIV line | wire of FIG.

Explanation of symbols

B1, B2 ··· Packaging box 1 ······················································································· ········ Right-side plate portion 6 ·············· First lid plate portion 6a ········· Tip edge 7 ······ Second cover plate part 7a ... Tip edge 10-13 ... Flap for bottom plate part (bottom plate part)
14, 15 ... insertion flaps 14a, 15a ... constricted parts 14b, 15b ... overhang parts 16, 17 ... insertion holes 16a, 17a ... engagement parts 18, 19, .... Zipper (breaking part for opening)
20, 21 ... Weir wall 22, 23 ... Insert flap 24, 25 ... Insert

Claims (5)

The first and second cover plate portions respectively extending from a pair of opposite side plate portions of the four-circumference side plate portion, and the four-circumference side plate portion and the bottom plate portion;
Each of the first and second cover plate portions has a proximal-side insertion port, a distal-side insertion flap that can be bent inward and inserted into the insertion port of the other lid plate portion, and for opening A breaking portion is formed, and has a locking means for locking each insertion flap so that it cannot be pulled out in a state of being inserted into the insertion port,
The insertion flap of the first lid plate portion superimposed on the second lid plate portion is inserted and locked into the insertion port of the second lid plate portion and sealed, and the sealed packaging box is sealed with the first lid plate. Opening is performed by breaking the breaking portion for opening the portion, but the second lid plate portion is covered on the remaining portion of the broken first lid plate portion, and the insertion flap is inserted into the insertion port of the first lid plate portion. A packaging box with a resealing function which can be resealed by inserting and locking, and is configured so that the resealed packaging box can be re-sealed by breaking the opening breaking portion of the second lid plate. The insertion flap has a constricted portion on the base end side, and the insertion port corresponding to the insertion flap forms a slit along the base end edge, and the engagement flap is recessed toward the front end side of the lid plate portion at the center side of the slit. A fitting part is formed, the left and right width of the engaging part is set to be smaller than the entire width of the insertion flap and the same as or slightly wider than the left and right width of the constricted part,
The locking means is configured such that when the insertion flap is inserted into the slit of the lid plate portion in the closed state, the constricted portion is fitted into the engagement portion, and the both side protruding portions of the insertion flap are The packaging box with a resealing function according to claim 1, wherein the packaging box is configured to be arranged on both sides of the engaging portion on the back side of the lid plate portion.   The packaging box with a resealing function according to claim 2, wherein a slit of the insertion port is formed by cutting and a weir wall portion is formed in which the remaining portion of the slit continuously rises from the side plate portion in the closed state.   When the proximal end edge of the insertion flap having the constricted portion is located closer to the proximal end side of the lid plate portion than the distal end edge of the lid plate portion, when the insertion flap is bent inward and inserted into the slit, The constricted portion of the insertion flap is locked so as not to be disengaged from the engaging portion of the slit by the tip edge of the lid plate portion protruding on both sides of the bent base end edge contacting the dam wall portion. 3. A packaging box with a reseal function. The resealment according to claim 1, wherein the insertion port forms a bent slit, and the locking means is forcedly deformed and the deformation of the insertion flap inserted into the slit is returned naturally in the box. Functional packaging box.

Images