JP2007197047A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box which increases the degree of versatility of changing the design with respect to the adjustment of the full height. <P>SOLUTION: A folding line 19 for adjusting the full height extending in the transverse direction is provided on end walls 10A and 10B and side walls 11A and 11B continuous in the transverse direction, and a folding line 20 for turning-in extending at the angle of inclination of about 45° toward continuous inner flaps 14A and 14B is provided from both ends of the folding line 19 for adjusting the full height of the end walls 10A and 10B. A first sealing state in which a blank is folded at boundary parts between the flaps 14A and 14B to 17A and 17B and the walls 10A, 10B, 11A and 11B, and a second sealing state in which the blank is folded along the folding line 19 for adjusting the full height, and the folding line 20 for turning-in, and closed by outer flaps 15A and 15B with the full height being lower than that in the second sealing state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a packaging box that can store commodities of different sizes without generating useless space.

  In recent years, various products can be ordered and purchased by telephone or the Internet. And a purchaser may purchase goods which are not packed with a packaging box, or two or more goods simultaneously. For this reason, a mail-order company that sells this type needs to prepare a dedicated packaging box for transportation.

  However, since each product is different in size, a plurality of types (volumes) of packaging boxes are required. The preparation of a plurality of types of packaging boxes is problematic in that the cost is high and the storage space is also required. If a large packaging box is prepared, it is of course possible to accommodate small items, but the wasteful space created inside must be filled with cushioning material, which increases the cost. A storage space for cushioning materials is required.

  Therefore, there is a demand for a packaging box that can change the volume that can be accommodated, and the following information is available as prior art document information related to such a packaging box.

Japanese Utility Model Publication No. 3-81817

  Patent Document 1 describes a cylindrical packaging box including a pair of short side plates and long side plates that are continuous in the horizontal direction. The short side plate is provided with a pair of first folding curves at an inclination angle of 45 degrees from the center of the tip. Similarly, a pair of second folding curves are provided on the long side plate at an inclination angle of 45 degrees from the tip center. Each side plate is provided with a first boundary line extending in the lateral direction so as to be positioned at an end portion of the first folding curve, and is positioned at an end portion of the second folding curve. In addition, a second boundary line extending in the lateral direction is provided.

  Thereby, when it folds along the 1st folding line and the 1st boundary line, it will be in the 1st sealing state closed so that the front-end edge of a pair of long side side board folded by the 1st boundary line may collide . Moreover, it will be set as the 2nd sealing state closed so that the front-end edge of a pair of short side plate bent by the 2nd boundary line may collide if it folds along the 2nd folding line and the 2nd boundary line. Further, by providing these folding lines on the upper and lower sides of each side plate, a three-stage packaging box having different overall heights can be formed.

  However, in this packaging box, the adjustable height is uniquely defined by the dimension settings of the short side plate and the long side plate. In other words, when the overall height is high, the short side plate is folded and closed with the long side plate, and when the full height is low, the long side plate is folded and closed with the short side plate. Therefore, if the position of the boundary line is changed, it cannot be closed. Therefore, even when only the vertical dimension is changed, it is necessary to change the entire outer shape of the blank, and there is a problem that the degree of freedom related to the dimension adjustment is low.

  This invention is made | formed in view of the conventional problem, and makes it a subject to provide the packaging box which can improve the freedom degree of the design change which concerns on total height adjustment.

  In order to solve the above-mentioned problems, a packaging box according to the present invention includes a pair of end walls and side walls, and an inner flap is connected to the end edge of the end wall, and an outer flap is connected to the end edge of the side wall. In the packaging box, the end wall and the side wall that are continuous in the lateral direction are provided with a folding curve for adjusting the overall height in the lateral direction, and from both ends of the folding curve for adjusting the height of each end wall toward the continuous inner flap. A folding line for folding extending at an inclination angle of approximately 45 degrees, and folding along the first sealed state folded at the boundary between each flap and each wall, and the total height adjusting folding curve and folding folding curve Thus, the second sealed state having a lower overall height than the first sealed state closed by the outer flap is made possible.

  In this packaging box, the total height can be made different between the first sealed state folded at the boundary between each wall and the flap, and the second sealed state folded at the total height adjustment folding curve and the folding folding curve. . In any of these sealed states, since the outer flap is located on the outside, the sealed state can be reliably closed even if the formation position of the total height adjustment folding curve changes. That is, when only the total height in the second sealed state is adjusted, the entire height of the blank is changed by changing the position of the folding curve for adjusting the total height and changing the position of the folding curve for folding accordingly. There is no need. Therefore, the degree of freedom related to dimensional adjustment can be improved.

  In this packaging box, it is preferable to provide a folding curve for one of the outer flaps whose tips overlap in the second sealed state. If it does in this way, workability at the time of setting it as the 2nd sealed state can be improved.

  Moreover, it is preferable to provide a lock means for maintaining the superimposed state on the outer flap that is superimposed in the second sealed state. If it does in this way, it can prevent that a 2nd sealing state is cancelled | released with the strength of the waist of a raw material.

  Further, the end wall and the side wall are alternately continuous in the lateral direction, and provided with a glue margin portion to be attached to the end wall located at the other end on the side wall located at one end thereof, and the total height at the glue margin portion. It is preferable to provide a notch corresponding to the surrounding area by the folding curve for adjustment and the folding curve for folding. If it does in this way, the fall of workability | operativity by the waist of a raw material at the time of setting it as a 2nd sealing state can be prevented.

  In the packaging box of the present invention, since the total height can be changed depending on the volume required for the goods to be stored, the number of packaging boxes to be prepared and the amount of cushioning material can be reduced, and the cost can be reduced. Can do. Further, in any of these sealed states, the outer flap is located on the outer side, so that it can be reliably closed even if the formation position of the total height adjustment folding curve changes. Therefore, the degree of freedom related to dimensional adjustment can be improved.

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

  1 to 5 show a packaging box according to a first embodiment of the present invention. This packaging box is provided with a pair of end walls 10A, 10B and side walls 11A, 11B, and flaps 14A, 14B-17A, 17B are connected to the upper and lower edges of these, respectively, and these flaps 14A, 14B-17A, 17B. This enables two types of sealing, that is, a first sealed state closed by the first sealed state and a second sealed state whose overall height is lower than the first sealed state.

  This packaging box is formed by punching a well-known corrugated cardboard sheet having a corrugated shin between the front and back sheets as a single continuous blank shown in FIG. 5 using a well-known paper punching device (not shown). The predetermined part is pasted and formed by gluing.

  As shown in FIG. 5, the packaging box blank is provided such that the end walls 10A, 10B and the side walls 11A, 11B are alternately and linearly continuous. Among these, the margin part 12 for adhering to the end wall 10B located in the right end part is continuously provided at the edge of the side wall 11A located in the left end part. In each of the boundary portions of the end walls 10A and 10B, the side walls 11A and 11B, and the adhesive margin 12, a folding line 13 is provided which is formed with a ruled line so as to compress the thickness.

  Upper inner flaps 14A and 14B are connected to upper end edges of the end walls 10A and 10B, and upper outer flaps 15A and 15B are connected to upper end edges of the side walls 11A and 11B. Similarly, lower inner flaps 16A and 16B are connected to lower end edges of the end walls 10A and 10B, and lower outer flaps 17A and 17B are connected to lower end edges of the side walls 11A and 11B. Yes. A folding line 18 similar to the above is provided between the flaps 14A, 14B to 17A, 17B and the continuous walls 10A, 10B, 11A, 11B.

  In the present embodiment, the total height adjustment folding line 19 extending in the horizontal direction is provided on the end walls 10A and 10B and the side walls 11A and 11B that are continuous in the horizontal direction. The total height adjusting folding line 19 is formed by ruled lines so as to compress the wall thickness in the same manner as described above.

  The end walls 10A and 10B are provided with folding lines 20 for folding extending at an inclination angle of 45 degrees from both ends of the total height adjustment folding line 19 toward the tip of one of the continuous upper inner flaps 14A and 14B. It has been. The folding line 20 for folding is composed of a folding line formed with a ruled line so as to compress the thickness, and a lead ruled line in which cutting lines are provided at predetermined intervals on the folding line.

  Further, of the pair of upper outer flaps 15A and 15B, one upper outer flap 15B is folded into a U shape and overlapped with the other upper outer flap 15A in the second sealed state with a low overall height. The folding curve 21 is provided so as to extend in the lateral direction.

  The adhesive margin 12 is provided with a substantially V-shaped cutout 22 corresponding to the surrounding area defined by the total height adjustment folding curve 19 and the folding curve 20 of the end wall 10B to be adhered. That is, by forming the notch 22, the adhesive margin 12 is prevented from sticking to the folded portion region of the end wall 10 </ b> B, and the folding workability is improved.

  When setting the dimensions of the packaging box having the above-described configuration, first, the horizontal dimensions of the end walls 10A, 10B and the side walls 11A, 11B are set based on the required planar shape (area) and height, and Sets the direction dimension. Thereafter, based on the second required height (volume), a position (height) for forming the total height adjustment folding curve 19 is set. The projecting dimensions of the upper outer flaps 15A and 15B are set to approximately half the lateral dimension of the end walls 10A and 10B, and the upper inner flaps 14A and 14B are substantially formed by a pair of folding curves 20 and 20. The dimensions are set by cutting at the intersection. In the present embodiment, in order to prevent breakage due to bending, cutting is performed at a position slightly protruding from the intersecting portion of the folding folding curves 20, 20, and notch portions for preventing fracture are formed on the extended lines of the folding folding curves 20, 20. 23.

  Next, the usage method of the said packaging box is demonstrated.

  When the product is stored in this packaging box and sealed, first, as shown in FIG. 1, the end walls 10A and 10B and the side walls 11A and 11B are spread so as to form a square cylinder, and the lower inner flaps 16A and 16B are spread. After the folding, the lower outer flaps 17A and 17B are folded. And the front-end | tip part of lower outer flap 17A, 17B which faced is stuck by sticking means, such as an adhesive tape (not shown).

  And when it is set as the 1st sealing state with a high overall height, as shown in FIG. After bending B, the upper outer flaps 15A and 15B are bent. And the front-end | tip part of the upper outer flaps 15A and 15B which abutted is stuck by sticking means, such as an adhesive tape. Thereby, it can be set as the 1st sealing state.

  On the other hand, in the case of the second sealed state where the overall height is low, the end walls 10A, 10B and the side walls 11A, 11B are folded along the folding height curve 19 as shown in FIG. The upper portions of the end walls 10A and 10B and the upper inner flaps 14A and 14B are bent. As a result, the upper regions of the end walls 10A and 10B including the upper inner flaps 14A and 14B are folded inward. When this folding operation is advanced, the pair of upper outer flaps 15A and 15B interfere with each other. Therefore, as shown in FIG. 4, the upper outer flap 15B is folded along the folding curve 21, and the other upper outer flap 15A is superimposed thereon. Then, sticking means such as an adhesive tape is stuck along the leading edge of the upper outer flap 15A. Thereby, it can be set as the 2nd sealing state.

  In these sealed states, the upper outer flaps 15A and 15B are both positioned on the outer side, so that they can be reliably closed even if the formation position of the total height adjustment folding curve 19 changes. That is, when only adjusting the total height in the second sealed state, as shown in FIG. 6, just changing the position of the folding curve 19 for height adjustment, and accordingly changing the position of the folding curve 20 for folding, It is not necessary to change the entire outline of the blank.

  Incidentally, the blank of the packaging box of this embodiment does not form the total height adjustment folding curve 19, the folding curve 20, and the folding curve 21, and the upper inner flaps 14A and 14B are the same as the upper outer flaps 15A and 15B. If it is the amount of protrusion, it is a general general-purpose packaging box. And this general-purpose packaging box can be manufactured with a general-purpose processing machine such as a flexo gluer with low equipment cost and high mass productivity, instead of a die cutter with high equipment cost and low mass productivity. Therefore, the packaging box of this embodiment forms only the partial type | mold which forms the folding curve 19 for full height adjustment, the folding curve 20 for folding, and the folding curve 21 for folding, and cut | disconnects the unnecessary part of upper inner flap 14A, 14B. For example, it can be produced by the flexoglua.

  In the case of adjusting the dimensions as described above, since it can be easily handled by replacing only the partial mold, as shown in FIG. 7, the upper inner flaps 14A and 14B have the protruding amounts of the upper outer flaps 15A and 15B. If it does not exceed the range, it is possible to change the protruding amount of the upper inner flaps 14A and 14B.

  Thus, in the packaging box of the present invention, since the total height can be changed according to the volume required for the goods to be stored, the number of packaging boxes to be prepared and the amount of cushioning material can be reduced, and the cost can be reduced. You can go down. Further, in these sealed states, the upper outer flaps 15A and 15B are both positioned on the outer side, and can be reliably closed even if the formation position of the total height adjustment folding curve 19 is changed. Can be improved.

  Moreover, in this embodiment, since the folding curve 21 for folding is provided in one upper outer flap 15B, and the notch 22 is provided in the glue margin 12, the corrugated cardboard which is a raw material when the second sealed state is set. It is possible to prevent a decrease in workability due to the waist of the paper.

  8 to 12 show the packaging box of the second embodiment. In the second embodiment, the upper outer flaps 15A and 15B that are overlapped in the second sealed state are provided with a lock piece 24 and a lock hole 28 as locking means for maintaining the overlapped state. Is different. In addition, the same structure as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits detailed description.

  Specifically, as shown in FIG. 12, in the blank of the second embodiment, a lock piece 24 is formed near the tip of the upper outer flap 15A. The lock piece 24 is formed between a linear cutting line 25 provided so as to extend in the lateral direction and an arcuate cutting line 26 provided at both ends of the linear cutting line 25. The arcuate cutting line 26 is located on the side of the side wall 11A where the distal end side of the upper outer flap 15A is curved and both ends thereof are continuous. The upper outer flap 15A is provided with a folding line 27 for locking work extending in the lateral direction from the top of each arcuate cutting line 26, 26 toward both side edges. The fold line 27 for the lock operation is composed of a fold line formed with a ruled line so as to compress the thickness, and a lead ruled line in which cutting lines are provided at predetermined intervals on the fold line.

  The upper outer flap 15B is provided with a folding curve 21 similar to that of the first embodiment. Between the folding curve 21 and the folding curve 18 at the boundary between the side wall 11B, the second folding curve 21 is provided. A lock hole 28 corresponding to the lower portion of the lock piece 24 in the sealed state is provided. The lock hole 28 includes a linear cutting line 29 provided so as to extend in the lateral direction, a ¼ circular arc cutting line 30 provided at both ends of the linear cutting line 29, and the linear cutting line. 29 and a cutting line 31 provided in an intermediate portion. The arcuate cutting line 30 is in contact with the linear cutting line 29 and its tip is located on the side of the side wall 11B. Moreover, one end of the cutting line is positioned on the linear cutting line 29, and the other end is positioned on the side of the side wall 11B.

  As shown in FIG. 8, the packaging box of the second embodiment configured as described above is formed by folding the flaps 14A, 14B to 17A, 17B with respect to the walls 10A, 10B, 11A, 11B. It can be set as the 1st sealing state with a high overall height similarly to embodiment.

  9, the end walls 10A and 10B and the side walls 11A and 11B are bent along the total height adjustment folding curve 19, and the upper and upper portions of the end walls 10A and 10B are folded along the folding curve 20. By bending the inner flaps 14A and 14B, the second sealed state having a low overall height can be obtained as in the first embodiment.

  Moreover, in the second embodiment, the purchaser can store the product in a simple sealed state. That is, as shown in FIG. 10, the tip of the upper outer flap 15B is bent inward along the folding curve 21. Thereafter, the end walls 10A, 10B and the side walls 11A, 11B are bent along the total height adjustment folding curve 19, and the upper portions of the end walls 10A, 10B and the upper inner flaps 14A, 14B are bent along the folding curve 20. . Then, as shown in FIG. 11, the tip of the upper outer flap 15 </ b> A is bent along the folding folding curve 27, and the lock piece 24 protruding downward is pushed into the lock hole 28. Accordingly, the tongue-like portion surrounded by the linear cutting line 29 and the arc-shaped cutting line 30 is bent downward, and the lock piece 24 is pushed into the inside. Thereby, a packaging box can be easily sealed in a state with a low overall height. Of course, in this simple sealing state, an adhesive tape may be attached to the tip of the upper outer flap 15A to firmly seal it.

  In the second embodiment, the same actions and effects as in the first embodiment can be obtained, and the lock means prevents the sealed state from being released due to the strength of the corrugated paper that is the raw material. it can. Therefore, the simple sealing state only by this locking means can be reliably maintained, and the sealing strength can be improved even when an adhesive tape is used.

  13 to 16 show the packaging box of the third embodiment. In this third embodiment, the first and second embodiments apply the structure of the present invention to a general-purpose packaging box in which the end walls 10A and 10B have a relatively wide width, whereas the end walls 10A and 10B have a comparatively wide width. This is greatly different in that the structure of the present invention is applied to a packaging box of a narrow lap land type.

  Specifically, as shown in FIG. 16, the blank of the packaging box of the third embodiment is provided so that the end walls 10A, 10B and the side walls 11A, 11B are alternately and linearly continuous as in each embodiment. However, the difference is that the end wall 10A is located at the left end, the side wall 11B is located at the right end, and the adhesive margin 12 is connected to the end wall 10A. In addition, the difference of these order does not produce a difference in an effect | action and effect as a packaging box. Further, flaps 14A, 14B to 17A, 17B are connected to upper and lower edges of the walls 10A, 10B, 11A, 11B, respectively.

  Similarly to each embodiment, the walls 10A, 10B, 11A, and 11B are provided with a pair of folding curves 19 for overall height adjustment extending in the horizontal direction, and the end walls 10A and 10B have folding height adjustment folds. A folding fold curve 20 is provided that extends from the end of the curve 19 toward the continuous inner flaps 14A, 14B, 16A, and 16B at an inclination angle of 45 degrees. In the third embodiment, the adjustment height by the total height adjustment folding curve 19 is set such that the intersection position of the folding folding curve 20 is located on the folding curve 18, and the folding curve 18 is set to the folding curve. It can be used as both. Moreover, in this embodiment, instead of not providing the notch part 22 in the glue margin part, the said height adjustment folding line 19 is extended.

  In this 3rd Embodiment, the front-end | tip of the folding line 20 for folding does not reach the front-end | tip vicinity of inner flap 14A, 14B, 16A, 16B. For this reason, in the present embodiment, a folding fold curve 32 extending in the vertical direction from the intersection of the folding fold curves 20 and 20 toward the tips of the inner flaps 14A, 14B, 16A, and 16B is provided. The folding curve 32 is formed with a ruled line so as to compress the thickness.

  This wrap-land type packaging box is shipped to a predetermined manufacturer in a blank state, for example, and sealed by an automatic assembly packaging device. Specifically, canned beverages or the like are placed in a predetermined arrangement on the blank side wall 11A. Thereafter, the walls 10A, 10B, 11B, and 12 are sequentially bent with the side wall 11A as a reference, and the adhesive margin 12 is adhered to the side wall 11B with an adhesive (hot melt) made of a hot-melt resin. Next, after folding the inner flaps 14A, 14B, 16A, and 16B, the outer flaps 15A, 15B, 17A, and 17B are folded, and these overlapping portions are adhered by hot melt, and the first shown in FIG. A single sealed packaging box is formed.

  Then, as shown in FIG. 13B, for example, the purchaser of the product accommodated in the packaging box opens the upper outer flaps 15A and 15B and the upper inner flaps 14A and 14B, and stores the desired number of internal products. Just take out. If a product that is not yet used remains inside and dislikes the entry of dust, the user seals it again. At this time, when the storage space for the packaging box is reduced, the second sealed state with the overall height lowered is set.

  That is, as shown in FIG. 14, the walls 10 </ b> A, 10 </ b> B, 11 </ b> A, and 11 </ b> B are folded along the total height adjustment folding curve 19, and the upper portions of the end walls 10 </ b> A and 10 </ b> B are folded along the folding curve 20. Further, the upper inner flaps 14 </ b> A and 14 </ b> B are bent along the folding curve 32. Then, the upper inner flaps 14A and 14B are folded in two and overlapped, and the upper outer flaps 15A and 15B are overlapped with each other and folded along one side along the folding line 18 that also serves as a folding curve. It can be set as the 2nd sealing state shown to (A).

  Further, when taking out the internal product and further reducing the storage space, it follows the folding curve 19 for total height adjustment, the folding curve 20 for folding, and the folding curve 32 for superposition provided on the opposite side of each wall 10A, 10B, 11A, 11B. By bending each of the walls 10A, 10B, 11A, 11B and the inner flaps 16A, 16B, as shown in FIG. 15 (B), it is possible to obtain a third sealed state having a lower overall height than the second sealed state.

  As described above, the packaging box of the present invention is provided with the total height adjustment folding curve 19 at the desired positions of the end walls 10A and 10B and the side walls 11A and 11B, and 45 from both ends of the total height adjustment folding curve 19 on the end walls 10A and 10B. A folding line 20 for folding is formed at an inclination angle of degrees. And when the folding curve 19 for full height adjustment is provided in the position where a pair of folding curves 20 and 20 do not cross | intersect, a packaging box can be made into a sealing state by different height, without adding another structure. . On the other hand, when the pair of folding curves 20 and 20 intersect, by adding the folding curve 32 as in the third embodiment, the packaging box can be sealed at different heights. That is, the overall height of the second sealed state can be easily adjusted as desired without changing the plan view shape of the packaging box, that is, the dimension settings of the end walls 10A and 10B and the side walls 11A and 11B. Moreover, in the case of the general-purpose packaging box as in the first and second embodiments, the change can be easily handled only by changing the partial mold used for the flexogluer.

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

  For example, in the first and second embodiments, the total height adjustment folding curve 19 and the folding curve 20 are provided only above the end walls 10A and 10B and the side walls 11A and 11B, thereby enabling two-stage height adjustment. However, as in the third embodiment, it is also possible to adjust the total height in three stages by providing it on the lower side.

  Of course, the method of use can be changed as desired by the purchaser of the packaging box. That is, if it is a mail-order dealer, a specific effect can be obtained by changing the total height at the time of shipment, and if it is a product purchaser, a specific effect can be obtained by changing the total height after purchase. .

  Moreover, in the said embodiment, although applied to the packaging box which external appearance consists of a hexahedron, for example, between end wall 10A, 10B and inner flap 14A, 14B, 16A, 16B, side wall 11A, 11B, and outer flap 15A, The present invention can be similarly applied to a packaging box provided with a chamfered wall between 15B, 17A, and 17B.

It is a perspective view which shows the packaging box of 1st Embodiment of this invention. It is a perspective view which shows the 1st sealing state of the packaging box of FIG. It is a perspective view which shows one process for making the packaging box of FIG. 1 into a 2nd sealing state. It is a perspective view which shows the 2nd sealing state of the packaging box of FIG. It is a top view which shows the blank of the packaging box of FIG. It is a perspective view which shows the modification of the packaging box of FIG. It is a perspective view which shows the other modification of the packaging box of FIG. It is a perspective view which shows the 1st sealing state of the packaging box of 2nd Embodiment. It is a perspective view which shows the 2nd sealing state of the packaging box of FIG. It is a perspective view which shows 1 process for making the packaging box of FIG. 8 into a simple sealing state. It is a perspective view which shows the simple sealing state of the packaging box of FIG. It is a top view which shows the blank of the packaging box of FIG. The packaging box of 3rd Embodiment is shown, (A) is a perspective view which shows a 1st sealing state, (B) is a perspective view which shows an open state. It is a perspective view which shows one process for making the packaging box of FIG. 13 into a 2nd sealing state. FIG. 14A is a perspective view showing a second sealed state, and FIG. 14B is a perspective view showing a third sealed state. It is a top view which shows the blank of the packaging box of FIG.

Explanation of symbols

10A, 10B ... End walls 11A, 11B ... Side walls 12 ... Paste margins 14A, 14B ... Upper inner flaps 15A, 15B ... Upper outer flaps 16A, 16B ... Lower inner flaps 17A, 17B ... Lower outer flaps 19 ... Overall height adjustment Folding curve 20 ... Folding curve 21 ... Folding curve 22 ... Notch 24 ... Lock piece (locking means)
28 ... Lock hole (locking means)

Claims (4)

In each packaging box comprising a pair of end walls and side walls, and an inner flap connected to the end edge of the end wall, and an outer flap connected to the end edge of the side wall,
The end wall and the side wall that are continuous in the lateral direction are provided with a folding line for adjusting the overall height in the lateral direction,
From both ends of the total height adjustment folding curve of each end wall, a folding curve for folding extending at an inclination angle of about 45 degrees toward a continuous inner flap is provided,
A first sealed state folded at the boundary between each flap and each wall;
A packaging box characterized in that it can be bent along the folding curve for overall height and the folding curve for folding, and a second sealed state having a lower overall height than the first sealed state closed with an outer flap.   2. The packaging box according to claim 1, wherein a folding curve for folding is provided on one of the outer flaps whose tips overlap in the second sealed state.   The packaging box according to claim 1 or 2, wherein locking means for maintaining the superimposed state is provided on the outer flap that is superimposed in the second sealed state.   The end wall and the side wall are alternately continuous in the lateral direction, and provided with a glue margin portion attached to the end wall located at the other end on the side wall located at one end thereof, and for adjusting the total height at the glue margin portion. The packaging box according to any one of claims 1 to 3, further comprising a cutout portion corresponding to a surrounding area defined by a folding curve and a folding curve for folding.

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