JP2018177294A - Blank sheet for packaging box and packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wrap-around type packing box which can be reused as a packing box with a lid, and to provide a blank sheet of the packing box.SOLUTION: A packing box 1 includes: a bottom plate 10; a pair of front and rear end walls 11, 12 connected to front and rear edge parts of the bottom plate 10; a top plate 15 connected to an upper edge part of the one end wall 11; and a pair of left and right side walls 13, 14. A flap 16 to be bonded to the other end wall 11 is connected to an edge part of the top plate 15. The flap 16 can be peeled from the other end wall 11 and engaged with the other end wall 11 after peeling.SELECTED DRAWING: Figure 1

Description

  The present invention relates to packaging boxes and blank sheets for packaging boxes.

BACKGROUND ART Conventionally, a cardboard packaging box in which a plurality of articles such as cut sheet volumes are packaged has been widely distributed. A wrap around type packaging box is often used as a packaging box for such a cut sheet volume.
The wrap-around type packaging box is composed of a corrugated sheet in which a top plate and a bottom plate, and a pair of end walls are connected in series via a fold line for bending. At the time of packaging, a sheet is folded so as to wind up a plurality of stacked cut sheet volumes, and an end wall and a top plate are glued and joined with a joining piece to form a peripheral wall. Then, the inner flaps extending from the both end walls are folded, and the outer flaps extending from the top plate and the bottom plate are folded on the inner flaps and sealed, thereby sealing both side surfaces of the peripheral wall (see, for example, Patent Document 1).

  The wrap-around type packaging box can be unpacked, for example, by peeling off a glued outer flap or a joint piece.

  On the other hand, a C-type box is known as a packaging box with a lid. The C-type box includes a tray-like box body and a lid that is placed over the opening of the box body. The box body and the lid are closed by a binding band. The C-type box can be unpacked by removing the binding band and removing the lid from the box body.

JP 2012-246025 A

  When the packaging box of Patent Document 1 described above is peeled off after the outer flaps and the joint pieces are peeled off, the side surfaces and the top plate are not held in a closed state and remain in an open state. For this reason, there existed a subject that it was difficult to reuse as a packaging box with a lid.

  In this respect, the C-type box described above can be easily closed by the lid of the opening of the box body and can be reused as a box with a lid after unpacking. However, since it is necessary to close a C-type box with a binding band at the time of packing, there is a problem that productivity and workability are inferior to a wrap-around type packaging box.

  An object of the present invention is to provide a wrap around packaging box and a blank sheet of the packaging box, which solves the above-mentioned problems and can be reused as a packaging box with a lid.

  In order to solve the above-mentioned subject, the packing box of the present invention has a bottom plate, a pair of front and back end walls continuously connected to the front and back edges of the bottom plate, and a top edge of one of the end walls. A top plate and a pair of left and right side walls are provided. At the edge of the top plate, a flap attached to the other end wall is connected. The flap is peelable from the other end wall and is lockable to the other end wall after peeling.

  In the present invention, the top plate can be opened by peeling the flap from the other end wall. Thereafter, when the unpacked box is to be reused, the top plate is closed to lock the flaps connected to the top plate to the other end wall. This holds the top plate closed. Therefore, it can be reused as a packaging box with a lid.

  In the packaging box described above, a part of the upper end portion of the other end wall is provided with a locking piece which is inclined outward or inward of the other end wall. The locking piece is inclined outward or inward of the other end wall to form an insertion space into which the flap is inserted.

  In this configuration, when the top plate is closed, the locking piece is tilted outward or inward of the other end wall to form a plug-in space at the upper end of the other end wall, and a flap is inserted in this plug-in space. Plug in. Thereby, the flap can be locked to the upper end of the other end wall, and the top plate is held closed.

  In the packaging box of the present invention, a bottom plate, a pair of front and rear end walls continuously connected to the front and rear edges of the bottom plate, a top plate continuously connected to the upper edge of one of the end walls, and a pair of left and right And a side wall of the A pair of left and right flaps attached to the both side walls are connected to the left and right edges of the top plate. The flaps are peelable from the side walls and can be locked to the side walls that have been stuck after peeling off.

  In the present invention, the top plate can be opened by peeling off the pair of left and right flaps from both side walls. Thereafter, when the unpacked box is to be reused, the top plate is closed and the pair of left and right flaps connected to the top plate are locked to the both side walls. This holds the top plate closed. Therefore, it can be reused as a packaging box with a lid.

  Further, in the packaging box described above, insertion pieces are respectively formed at tip portions of the two flaps, and slits are respectively formed in the both side walls into which the insertion pieces are inserted.

  In this configuration, when the top plate is closed, the two flaps of the two flaps are inserted directly into the respective side wall slits. Thereby, both flaps can be locked on both side walls, and the top plate is held closed.

  Further, the blank sheet of the packaging box of the present invention comprises a bottom plate, a pair of front and rear end walls continuously connected to the front and rear edges of the bottom plate, and a top plate continuously connected to the upper edge of one of the end walls. , And a pair of left and right side walls. At the edge of the top plate, a flap attached to the other end wall is connected. The flap is peelable from the other end wall and is lockable to the other end wall after peeling.

  In the present invention, the top plate can be opened by peeling the flap from the other end wall. Thereafter, when the unpacked box is to be reused, the top plate is closed to lock the flaps connected to the top plate to the other end wall. This holds the top plate closed. Therefore, it can be reused as a packaging box with a lid.

  Further, the blank sheet of the packaging box of the present invention comprises a bottom plate, a pair of front and rear end walls continuously connected to the front and rear edges of the bottom plate, and a top plate continuously connected to the upper edge of one of the end walls. , And a pair of left and right side walls. A pair of left and right flaps attached to the both side walls are connected to the left and right edges of the top plate. The flaps are peelable from the side walls and can be locked to the side walls that have been stuck after peeling off.

  In the present invention, the top plate can be opened by peeling off the pair of left and right flaps from both side walls. Thereafter, when the unpacked box is to be reused, the top plate is closed and the pair of left and right flaps connected to the top plate are locked to the both side walls. This holds the top plate closed. Therefore, it can be reused as a packaging box with a lid.

  Further, the blank sheet of the packaging box of the present invention comprises a bottom plate, a pair of front and rear end walls continuously connected to the front and rear edges of the bottom plate, and a top plate continuously connected to the upper edge of one of the end walls. , And a pair of left and right side walls. A pair of left and right flaps attached to the both side walls are connected to the left and right edges of the top plate. The side walls are provided with tear lines for unpacking. The two flaps can be peeled off from the side walls, and the tip thereof functions as a plug when reuse of the packaging box. The breaking line functions as a slit for locking the insertion piece at the time of reuse of the packaging box after unpacking.

  In the present invention, the top plate can be opened by peeling off the pair of left and right flaps from both side walls. Thereafter, when reusing the unpacked box, the top plate is closed, and the leading ends of the pair of left and right flaps connected to the top plate function as insertion pieces, and the broken lines function as slits in both side walls Lock on. This holds the top plate closed. Therefore, it can be reused as a packaging box with a lid.

  In the present invention, a wraparound type packaging box and a blank sheet of the packaging box which can be reused as a lidded packaging box are obtained.

It is the perspective view which looked at the packaging box concerning a first embodiment of the present invention from the front upper left. It is a blank sheet of the packaging box concerning a first embodiment of the present invention. It is a perspective view which shows the state which made the packaging box which concerns on 1st embodiment of this invention upside down at the time of conveyance. It is the figure which showed the procedure at the time of unpacking of the packaging box which concerns on 1st embodiment of this invention, (a) peels a joint piece from the front end wall, cuts open the right and left perforations and opens the top plate And (b) is a partially omitted perspective view showing a state in which the top plate is opened. It is a figure showing a procedure at the time of reuse of a packaging box concerning a first embodiment of the present invention, and (a) inclines a locking piece to the outside of an end wall, forms insertion space, closes a top plate. (B) is a perspective view showing a closed state in which the top plate is locked in the insertion space. It is the figure which showed the procedure at the time of other recycling of the packaging box concerning a first embodiment of the present invention, and (a) shows the state where the locking piece was inclined inside the end wall and the top plate was closed. A perspective view, (b) is a perspective view showing a state where the top plate is locked to the locking piece and closed. It is sectional drawing which shows the latching of the joining piece with respect to the latching piece of the packaging box which concerns on 1st embodiment of this invention, (a) is a longitudinal cross-sectional view corresponding to FIG.5 (b), (b) is FIG. It is a longitudinal cross-sectional view corresponding to (b). It is the perspective view which looked at the packaging box which concerns on 2nd embodiment of this invention from front upper left. It is a blank sheet of the packaging box concerning a second embodiment of the present invention. It is a perspective view which shows the state which made the packaging box which concerns on 2nd embodiment of this invention upside down at the time of conveyance. It is the figure which showed the procedure at the time of unpacking of the packaging box which concerns on 2nd embodiment of this invention, (a) is a perspective view which showed a mode that a joining piece was cut away from a top plate along a perforation, peeling a joining piece. The figure, (b) is a perspective view which shows a mode that both upper side flaps arranged in a row with the top board were exfoliated. It is a perspective view showing the state where the top plate of the packaging box concerning a second embodiment of the present invention was opened. It is a figure showing a procedure at the time of reuse of a packaging box concerning a second embodiment of the present invention, (a) is a perspective view showing a state where a top plate is closed, (b) is both insertions of both upper side flaps. It is the perspective view which showed the state which inserted the piece in the slit and closed the top plate. It is the figure which showed the procedure at the time of reuse of the packaging box which concerns on 2nd embodiment of this invention, (a) is a longitudinal cross-sectional view which shows the mode of the insertion piece corresponding to Fig.13 (a), (b) [FIG. 13] is a longitudinal cross-sectional view which shows the mode of the insertion piece corresponding to FIG.13 (b).

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the following description, the front, rear, left, right, upper, and lower directions are set for convenience in describing the packaging box, and the configuration of the packaging box is not limited.

First Embodiment
As shown in FIG. 1, the packaging box 1 is a rectangular box of wrap-around type. The packaging box 1 includes a bottom plate 10, a pair of front and rear end walls 11 and 12, a pair of left and right side walls 13 and 14, and a top plate 15. After packaging the product such as the cut sheet volume C (see FIGS. 4 (a) and 4 (b)), the packaging box 1 is turned upside down, for example, as shown in FIG. It can be transported with the top plate 15 turned down.

As shown in FIG. 2, the packaging box 1 is formed by mountain-folding and valley-folding a blank sheet S obtained by cutting out a single cardboard sheet at each ruled line. The blank sheet S shown in FIG. 2 is disposed so that the inner side can be seen.
Each ruled line (folding line) of the blank sheet S is a linear groove formed by pressing the surface of the blank sheet S.
In addition, you may form a cut in a ruled line. This makes it easier to bend the blank sheet S at the ruled lines.

  As shown in FIG. 1, the bottom plate 10 is formed in a rectangular shape, and is formed to be larger in the left-right direction than in the front-rear direction. The front end wall 11 and the rear end wall 12 are connected to the front and rear edges of the bottom plate 10 via the ruled lines L1 and L2.

  The front end wall (the other end wall) 11 rises upward from the front edge of the bottom plate 10. The front end wall 11 is formed perpendicular to the bottom plate 10. The front end wall 11 is formed in a substantially rectangular shape, and is formed to be larger in the left-right direction than in the vertical direction.

  A locking piece 17 is formed at the center in the left-right direction of the upper end of the front end wall 11. The locking piece 17 is separated from the front end wall 11 by a pair of left and right cut lines L17 and L17. The cutting lines L17 and L17 are cut downward substantially in a C shape. The lengths of the cutting lines L17 and L17 are substantially the same as the lengths in the vertical direction of the joint piece 16 continuously provided on the top plate 15.

  At the central portion of the upper edge portion of the locking piece 17, a finger hooking portion 18 cut in an arc shape is formed (see FIG. 4A). The upper edge portion of the locking piece 17 is formed one step lower than the upper edge portion 11 c of the front end wall 11 as shown in FIG. 4A. The left and right corner portions 17e and 17e of the locking piece 17 are chamfered in a rounded shape (see FIG. 2).

  Such a locking piece 17 is inclined toward the outer side or the inner side of the front end wall 11 as shown in FIGS. 5 (a) and 6 (a) at the time of recycling of the box described later after unpacking. Be done. By the locking piece 17 being tilted, a plug-in space SP is formed between the locking piece 17 and the left and right walls of the front end wall 11. The joint piece 16 connected to the top plate 15 is inserted into and engaged with the insertion space SP (see FIGS. 5B and 6B).

  The rear end wall (one end wall) 12 rises upward from the rear edge of the bottom plate 10, as shown in FIG. It is formed perpendicular to the bottom plate 10. The rear end wall 12 is formed in a rectangular shape corresponding to the front end wall 11, and is formed to be larger in the left-right direction than in the vertical direction.

The top plate 15 is continuously provided on the upper edge of the rear end wall 12 via a ruled line L3. The top plate 15 extends forward from the upper edge of the rear end wall 12. The top plate 15 has the same outer shape as the bottom plate 10 and is formed perpendicular to the front end wall 11 and the rear end wall 12.
The joining piece 16 is provided in a row on the front edge portion of the top plate 15 via a crease L4. The joining piece 16 extends in a band along the front edge of the top plate 15. The joining piece 16 corresponds to "a flap attached to the end wall (the front end wall 11)" in the claims.

  A front end wall 11, a bottom plate 10, and a rear end wall 12 are formed by bonding and joining a joining piece 16 to the front end of the front end wall 11 while bending the blank sheet S (see FIG. 2) at the creases L1 to L4. The top plate 15 has a square tube shape.

  The left side wall 13 is formed perpendicular to the left edge of the bottom plate 10 and the left edge of the top plate 15. The left side wall 13 is constituted of a front side flap 21, a rear side flap 22, an upper flap 31 and a lower flap 32.

  The front side flap 21 is connected to the left edge of the front end wall 11 via a ruled line L5. The front side flap 21 extends rearward from the left edge of the front end wall 11. The front side flaps 21 are formed perpendicularly to the front end wall 11.

  The rear side flaps 22 are connected to the right edge of the rear end wall 12 via a crease L6. The rear side flaps 22 extend forward from the right edge of the rear end wall 12. The rear side flaps 22 are formed perpendicularly to the rear end wall 12.

  The longitudinal length of the front side flaps 21 and the rear side flaps 22 is half of the longitudinal length of the bottom plate 10 and the top plate 15. The left side surface of the packaging box 1 is closed by the side flaps 21 and 22.

  The upper flap 31 is connected to the left edge of the top plate 15 through a perforation L7. The upper flap 31 extends downward from the left edge of the top plate 15. The upper flap 31 is formed perpendicular to the top plate 15. The perforations L7 are formed by intermittently forming linear incisions, and each incision penetrates the blank sheet S (see FIG. 2).

The vertical length of the upper flap 31 is about half of the vertical length of the front and rear end walls 11 and 12.
The inner surface of the upper flap 31 is stuck and joined to the upper part of the outer surface of the front and rear side flaps 21 and 22.

  The lower flap 32 is connected to the left edge of the bottom plate 10 via a crease L8. The lower flap 32 extends upward from the left edge of the bottom plate 10. The lower flap 32 is formed perpendicular to the bottom plate 10.

The vertical length of the lower flap 32 is about half of the vertical length of the front and rear end walls 11 and 12.
The inner surface of the lower flap 32 is stuck and joined to the lower part of the outer surface of the pair of front and rear side flaps 21 and 22.

  The right side wall 14 is formed perpendicular to the right edge of the bottom plate 10 and the right edge of the top plate 15. The right side wall 14 is symmetrical to the left side wall 13. The right side wall 14, like the left side wall 13, is configured by front side flaps 21 and 22, an upper flap 31 and a lower flap 32. The upper flaps 31 of the right side wall 14 are connected to the right edge portion of the top plate 15 through the perforation L7 in the same manner as the left side wall 13. Thus, the top plate 15 can be separated from the upper flaps 31, 31 at the left and right perforations L7, L7. The joining piece 16 is attached to the front end wall 11 at a portion other than the locking piece 17.

  When unpacking the packaging box 1 as described above, as shown in FIG. 4A, a finger is placed on the lower edge portion of the joining piece 16 continuously provided on the top plate 15, and the joining piece 16 is placed on the front side. And peel off the joint piece 16 from the front end wall 11. Then, the peeled joint piece 16 is picked up with a finger and lifted upward. Then, the top plate 15 is lifted by being pulled by the joint piece 16, and the left and right perforations L7 and L7 of the top plate 15 are cut open. Thereby, the top plate 15 is opened and the packaging box 1 is unpacked. The cut sheet volume C can be taken out from the opening formed by opening the top plate 15 (see FIG. 4B).

  Thereafter, when the remaining cut sheet book C is stored in the packaging box 1 or when the cut sheet book C is taken out and reused (reused) as the packaging box 1 for storing documents etc., the top plate 15 is used. Used as a lid of the packaging box 1 Specifically, a finger is placed on the finger hook portion 18 of the locking piece 17 to tilt the locking piece 17 outward or inward of the front end wall 11 as shown in FIGS. 5 (a) and 6 (a). Do.

  When the locking piece 17 is inclined to the outside of the front end wall 11, as shown in FIG. 5B, the joining piece 16 is inserted into the insertion space SP formed on the outside of the front end wall 11 and the top plate Close 15. As a result, the joining piece 16 is locked in the insertion space SP, and the top plate 15 is held closed (see FIG. 7A).

  Further, as shown in FIG. 6 (a), when the locking piece 17 is inclined to the inner side of the front end wall 11, it is formed on the inner side of the front end wall 11 as shown in FIG. 6 (b). The joint piece 16 is inserted into the insertion space SP and the top plate 15 is closed. Thus, the joining piece 16 is locked in the insertion space SP, and the top plate 15 is held closed (see FIG. 7B).

  Thereafter, when the top plate 15 is opened, the joint piece 16 locked in the insertion space SP may be pulled up to release the lock.

  In the packaging box 1 as described above, the top plate 15 can be easily opened by peeling off the joint piece 16 stuck to the front end wall 11, so the unpacking is easy. When the packaging box 1 is reused, the top plate 15 can be kept closed by a simple operation of locking the joint piece 16 in the insertion space SP and closing the top plate 15. That is, resealing is easy. Therefore, in the present embodiment, it can be suitably reused as the packaging box 1 with a lid.

  Further, the insertion space SP can be easily formed simply by inclining the locking piece 17 outward or inward of the front end wall 11. Therefore, when the remaining cut sheet volume C is stored in the packaging box 1 or reused as the packaging box 1 for storing documents etc., the top plate 15 can be easily held in a closed state, which is convenient. .

  Further, since the upper edge portion of the locking piece 17 is lower than the upper edge portion of the front end wall 11, when inserting the joint piece 16 into the insertion space SP, the joint piece 16 is made to run along the front end wall 11. Can be inserted. Therefore, locking of the joining piece 16 can be performed smoothly.

  Further, since the left and right corner portions 17e and 17e of the locking piece 17 are chamfered in a rounded shape, the lower edge portion of the joining piece 16 is not easily caught when inserting the joining piece 16 into the insertion space SP. Therefore, locking of the joining piece 16 can be performed smoothly.

Second Embodiment
Next, a packaging box according to a second embodiment of the present invention will be described with reference to FIGS. The difference between this embodiment and the first embodiment is that, as shown in FIG. 8, the top plate 15 is closed by locking both upper flaps 31 and 31 to the left and right side walls 13 and 14, respectively. It is in the point that it was made to hold. As the structure for that, the both upper side flaps 31 and 31 are provided with insertion piece 31a, 31a. Moreover, the slit 25 into which the insertion piece 31a is inserted is formed in the side part flap 21 of a front side, and the side part flap 22 of a rear side. In addition, since packaging box 1A of this embodiment is the same as that of packaging box 1 which fundamental composition demonstrated by the said 1st embodiment, it demonstrates focusing on a different point below.

  As shown in FIGS. 8 and 9, the joint plate 16 is connected to the top plate 15 of the packaging box 1A via the perforation L4. The joint piece 16 is attached to the upper front surface of the front end wall 11 as in the first embodiment, but when it is pulled off from the front end wall 11 at the time of unpacking, the perforation L4 is cut open from the top plate 15 It is designed to be separated (see FIG. 11 (a)).

  As shown in FIG. 2, both upper side flaps 31 and 31 are continuously provided to the left edge and the right edge of the top plate via the non-perforated ruled lines L7 and L7. That is, both upper flaps 31, 31 are not separated from the top plate 15.

  Insertion pieces 31a, 31a are formed at the front end portions (lower end central portions) of both upper side flaps 31, 31, respectively. The insertion piece 31a has a rectangular shape. The insertion piece 31a is continuously provided to the lower edge of the upper flap 31 via a ruled line L31 (see FIG. 9, the same applies hereinafter). The two insertion pieces 31a, 31a can be bent to the side of the left side wall 13 and the side of the right side wall 14 opposite to each other through the ruled lines L31, L31.

  As shown in FIG. 9, the front edge portion of the side flap 21 is formed with a recessed portion 25a which is recessed toward the front side. Further, at the leading end edge of the rear side flap 22, a recess 25a which is recessed rearward in a square shape is formed. The depressions 25a, 25a are formed at the center in the vertical direction of the side flaps 21, 22. A slit 25 extending in the front-rear direction is formed by connecting the front and rear recessed portions 25 a formed in the central portion of the side flaps 21 and 22.

  Both upper side flaps 31 and 31 are stuck on the upper part of the both-sides flaps 21 and 22 in the state where each insertion piece 31a was penetrated by each slit 25, as shown in FIG.

  Also in the present embodiment, after packaging the product, for example, as shown in FIG. 10, the packaging board 1A is turned upside down, that is, the bottom plate 10 is up and the top plate 15 is down. It can be transported in the state.

  When unpacking the packaging box 1A as described above, as shown in FIG. 11 (a), a finger is put on the joint piece 16 continuously provided on the top plate 15 and stuck on the top of the front end wall 11 The connecting piece 16 is pulled from the front end wall 11 so as to be pulled in the extending direction (left and right direction). Then, the perforation L4 is cut open and the joint piece 16 is separated from the top plate 15. Further, the front edge portion of the top plate 15 is separated from the front end wall 11 by peeling off the joint piece 16.

  Next, both upper side flaps 31 and 31 are pulled off from the side flaps 21 and 22 on either side. When the two upper flaps 31, 31 are peeled off, the two insertion pieces 31a, 31a inserted in the two slits 25, 25 are pulled out (see FIG. 11A). Thereafter, by lifting the top plate 15, the top plate 15 is opened as shown in FIG. As a result, the packaging box 1 is unpacked, and the cut sheet volume C can be taken out.

  Thereafter, when the remaining cut sheet volume C is stored in the packaging box 1 or when the cut sheet volume C is taken out and reused as the packaging box 1A for storing documents etc., the top plate 15 is used as a lid of the packaging box 1A. Use. Specifically, as shown in FIG. 13A, the top plate 15 is turned over and closed, and the upper flaps 31 and 31 are overlapped on the side flaps 21 and 22, respectively. And as shown in FIG.13 (b), both insertion pieces 31a and 31a are inserted in both slits 25 and 25 (refer FIG. 14 (a)). Thereby, the insertion pieces 31a, 31a are engaged with the both slits 25, 25, and the top plate 15 is held in the closed state (see FIG. 14B).

  In the packaging box 1A as described above, the top plate 15 can be easily opened by peeling off the joint piece 16 and the upper flaps 31 and 31 attached to the front end wall 11, so that the unpacking is easy. When the packaging box 1A is to be reused, the top plate 15 can be held closed by a simple operation of closing the top plate 15 and inserting both the insertion pieces 31a, 31a into the both slits 25, 25. That is, resealing is easy. Therefore, also in this embodiment, it can be suitably reused as a packaging box 1 with a lid.

  In the packaging box 1A, since the insertion pieces 31a, 31a inserted into the both slits 25, 25 can not be seen from the outside of the packaging box 1A, the appearance of the packaging box 1A can be improved.

  In addition, in order to satisfy the adhesiveness of the outer flaps 31 and 32 and the inner flaps 21 and 22 as a box, it is preferable to design so that the outer flap 31 and the outer flap 32 may not overlap. In this case, the distal end portion of the outer flaps 31 and 32 is made to function as a plug-in piece, which is engaged with the inner side of the inner flaps 21 and 22 to exhibit the resealing function. Can. For example, a break line or the like provided on the inner flaps 21 and 22 for unpacking may be used as a slit in which the tip end portions of the outer flaps 31 and 32 are engaged. It may be formed in

  Of course, it is also possible to use the inventions according to FIGS. 1 to 7 simultaneously with the inventions according to FIGS. In this case, the three sides (portions continuous to the three sides) of the top plate 15 can be locked, which is more desirable as a function of the resealable packaging box 1 or 1A.

  In addition, since the configuration of the packaging box 1 or 1A changes before unpacking and after resealing, the printing design etc. of the inner flaps 21 and 22 and the outer flaps 31 and 32 are changed, and before unpacking and after resealing It is also possible to devise to make the design different.

As mentioned above, although embodiment of this invention was described, this invention can be suitably changed in the range which does not deviate from the meaning, without being limited to the said embodiment.
In the first embodiment, the locking pieces 17 are formed at the central portion of the front end wall 11, but the present invention is not limited thereto. The number and shape of the locking pieces 17 are not limited.

  Although the packaging boxes 1 and 1A of the present embodiment are made of cardboard, the packaging box may be formed of various known paperboards.

Reference Signs List 1 packaging box 1A packaging box 10 bottom plate 11 front end wall 12 rear end wall 13 left side wall 14 right side wall 15 top plate 16 joint piece (flap)
17 locking piece 21 front side flap 22 back side flap 18 finger rest 31 upper flap (flap)
31a plug-in piece 32 lower flap S blank sheet SP plug-in space

Claims (7)

Bottom plate,
A pair of front and rear end walls connected to the front and rear edges of the bottom plate;
A top plate connected to the upper edge of one of the end walls;
A pair of left and right side walls,
At the edge of the top plate:
A flap attached to the other end wall is provided in series.
A packaging box characterized in that the flap is peelable from the other end wall and lockable to the other end wall after peeling. A part of the upper end of the other end wall is provided with a locking piece which is inclined outward or inward of the other end wall,
The packaging box according to claim 1, wherein the locking piece is inclined outward or inward of the other end wall to form an insertion space into which the flap is inserted. Bottom plate,
A pair of front and rear end walls connected to the front and rear edges of the bottom plate;
A top plate connected to the upper edge of one of the end walls;
A pair of left and right side walls,
At the left and right edges of the top plate,
A pair of left and right flaps attached to the both side walls are connected in series,
The packaging box is characterized in that the flaps are peelable from the side walls and can be locked to the side walls that have been stuck after peeling. Insertion pieces are respectively formed at the tip of the two flaps,
The packaging box according to claim 3, wherein the side walls are respectively formed with slits into which the insertion pieces are inserted. Bottom plate,
A pair of front and rear end walls connected to the front and rear edges of the bottom plate;
A top plate connected to the upper edge of one of the end walls;
A blank sheet of a packaging box provided with a pair of left and right side walls,
At the edge of the top plate:
A flap attached to the other end wall is provided in series.
The blank sheet of a packaging box, wherein the flap is peelable from the other end wall and lockable to the other end wall after peeling. Bottom plate,
A pair of front and rear end walls connected to the front and rear edges of the bottom plate;
A top plate connected to the upper edge of one of the end walls;
A blank sheet of a packaging box provided with a pair of left and right side walls,
At the left and right edges of the top plate,
A pair of left and right flaps attached to the both side walls are connected in series,
The blank sheet of a packaging box, wherein the both flaps are peelable from the both side walls and can be locked to the both side walls that have been stuck after peeling. Bottom plate,
A pair of front and rear end walls connected to the front and rear edges of the bottom plate;
A top plate connected to the upper edge of one of the end walls;
A blank sheet of a packaging box provided with a pair of left and right side walls,
At the left and right edges of the top plate,
A pair of left and right flaps attached to the both side walls are connected in series,
The two side walls
A breaking line for unpacking is provided.
The two flaps are peelable from the both side walls, and the tip thereof functions as a plug when reuse of the packaging box.
The blank line of the packaging box, wherein the breaking line functions as a slit for locking the insertion piece at the time of reuse of the packaging box after unpacking.

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