JPWO2009072557A1 - Packaging box with buffer function - Google Patents

Abstract

An object of the present invention is to effectively prevent a tablet or the like stored in a packaging box from being damaged by an external impact, thereby reducing the cost of packaging materials and facilitating a case packing operation. In a packaging box S, buffer portions 30a and 30b are formed on the inner side of a pair of opposing side plates 14 and 18, and the buffer portions 30a and 30b are located on the inner side of the side plates 14 and 18. Substantially rectangular buffer plates 32, 33 disposed on the lid plate 10, first support plates 34, 35 foldably connected to the lid plate 10 side and the side plates 14, 18 of the buffer plates 32, 33, and the buffer plate Flap 38 provided on the bottom 22 side of the plates 32 and 33 and the second support plates 36 and 37 foldably connected to the side plates 14 and 18 and extending to the first support plates 34 and 35. , 39, the buffer plates 32, 33 expand and contract inward of the body.

Description

  The present invention relates to a packaging box for storing fragile tablets and the like, and more particularly to a packaging box having a buffer structure capable of preventing the tablet from being damaged by an external impact. More specifically, the present invention relates to a packaging box for storing soft tablets such as orally disintegrating tablets.

  Conventionally, when storing contents such as fragile tablets and fragile ampoules in packaging paper boxes, etc., in order to protect the contents from external impacts, a foam member or an air cap is placed in the gap between the paper box and the contents. The buffer material was filled. In addition, the contents are stored in a molded product made of a cushioning material formed in accordance with the shape of the contents and then stored in a paper box.

In such a packaging method, it is necessary to prepare a cushioning material separately from the paper box, and the packaging process is complicated.
Then, the paper packaging box which provided the buffer double structure along the inner peripheral surface of the packaging box is known. (For example, refer to Patent Documents 1 and 2).

JP 09-323722 A JP-A-10-152131

  The packaging box with a cushioning material of Patent Documents 1 and 2 is provided with a plate-like cushioning material along the inner peripheral surfaces of both side surfaces. Both ends of the cushioning material are supported, and a predetermined cushioning space is provided between the cushioning material and the side plate of the packaging box. Further, the buffer material is provided with an intermediate support portion in order to prevent bending of the intermediate portion. Moreover, the intermediate support part of the shock absorbing material of the packaging box with a shock absorbing material of patent document 2 forms a notch in the intermediate part of the shock absorbing material, bend | folds this notch part in L shape, and makes it a cut-and-raised piece, and the front-end | tip is a side. By connecting and fixing to the face plate, the intermediate portion of the cushioning material is supported.

Thus, the packaging box with a buffer material of patent documents 1 and 2 can relieve an external impact by the buffer space formed in both sides.
However, in order to fully exhibit the buffer function of Patent Documents 1 and 2, it is necessary to match the size of the packaging box with the size of the contents to be packed. When the size of the contents is smaller than the size of the packaging box, a gap is generated between the contents and the contents are damaged due to an impact caused by movement inside the packaging box.
Therefore, it was necessary to reduce the gap between the contents according to the size of the box, but in this case, the contents are caught by the insertion opening part of the packaging box during the boxing operation or taking in / out operation. There was a risk of damaging the contents. In addition, the boxing operation cannot be performed smoothly, resulting in a disadvantage that the work efficiency is lowered.

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a packaging box that is provided with a buffer space that can provide sufficient buffering properties and that can be easily packed and put in and out of contents. There is to do.
Another object of the present invention is to provide a packaging box that can be manufactured from a single box-forming substrate and that can simplify the manufacturing process.

  According to the packaging box of claim 1, the object is formed at the upper part connected to the body part formed by bending a series of side plates at predetermined positions and connecting them in a substantially hollow rectangular shape. And a predetermined buffer formed on at least one of the side plates facing each other, a bottom part connected to the body part and formed at a lower part, a flap extending inward of the body part A packaging box formed by bending and assembling a single box-forming substrate provided with a portion, wherein the buffer portion includes a substantially rectangular buffer plate disposed inside the side plate, A first support plate foldably connected to the lid plate side of the buffer plate and the side plate; a second support plate foldably connected to the bottom side of the buffer plate and the side plate; And according to the folding operation of the flap, the buffer plate expands and contracts inward of the body portion, and the buffer plate and Serial side plates, and said first support plate and the second support plate disposed substantially parallel to each other with a predetermined gap, are solved by.

Thus, the packaging box of the present invention has a buffer portion on at least one of the side plates facing each other, and the buffer portion is a substantially rectangular buffer plate disposed inside the side plate, and the buffer plate. A first support plate that is foldably connected to the lid plate side and the side plate; a bottom side of the buffer plate; and a second support plate that is foldably connected to the side plate; Accordingly, the buffer plate expands and contracts inward, and the buffer plate and the side plate, and the first support plate and the second support plate are arranged substantially parallel to each other with a predetermined interval. Further, the packaging box is formed by folding and assembling one box forming substrate.
With such a configuration, in the present invention, the buffer plate provided on the side surface is expanded and contracted according to the folding operation of the flap, and a buffer space for protecting the internal article from impact is formed between the buffer plate and the side plate. Therefore, since the buffer space is configured only when the buffer plate is bulged, when the buffer plate is contracted, the take-out port is wide and the boxing operation is facilitated. A shock-absorbing effect is obtained with respect to impact, and damage to the article can be effectively prevented. Further, the packaging box can be three-dimensionally formed by folding and assembling one box forming substrate. Therefore, the packaging box can be provided by a simple manufacturing process.

  According to the packaging box of claim 2, a pair of first formed at a predetermined interval from a midway position of the connecting portion between the buffer plate and the first support plate toward the second support plate. 1 cut line and a second cut line formed between the first cut lines on the second support plate side, and the flap is formed between the first cut line and the second cut line. It is preferable that it is formed by a portion cut out surrounded by a cut line.

  As described above, the flap is formed by a portion cut out surrounded by the first cut line and the second cut line formed in the buffer plate. With such a configuration, since the flap can be formed integrally with the first support plate, assembly of the packaging box can be facilitated.

  According to the packaging box of claim 3, the sticking piece continuously stuck to the side plate side is formed on the side of the second support plate opposite to the buffer plate, and the sticking piece. More preferably, the second support plate is fixed to the side plate so as to be separated from the bottom portion.

  In this way, a sticking piece that is continuously stuck to the side plate side is formed on the second support plate, and the sticking piece is fixed to the side plate so that the second support plate is separated from the bottom, Assembling of the packaging box can be facilitated.

  The packaging box according to claim 4 is preferably used for housing an orally disintegrating tablet.

According to the packaging box of the present invention, the following effects are produced.
Since the buffer space is configured for the first time in a state where the buffer plate is bulged, the outlet is widely formed when the buffer plate is contracted. Further, the buffer plate can be expanded and contracted inward according to the folding operation of the flap. Therefore, it is difficult to be caught when the article is taken in and out, and the packaging work and the work in and out of the article become easy. Therefore, yield and work efficiency can be increased, and packaging costs can be reduced.
Further, since the flap is formed integrally with the first support plate, the packaging box can be easily assembled. Thereby, the intensity | strength of a buffer board can be adjusted with the shape which cuts out a flap, and the optimal buffer effect can be acquired. Since the buffer plate expands and contracts in parallel with the side plate, the article can be stably held.

Furthermore, in the state where the buffer plate is bulged, a buffering effect is obtained against an external impact, and the article can be effectively prevented from being damaged.
In addition, by folding and assembling one box-forming substrate, a packaging box having a buffer structure inside the side plate can be raised in three dimensions. Therefore, a packaging box that can provide a sufficient buffering effect against external impact can be provided at a low cost and with a simple manufacturing process.

  Although there is no restriction | limiting in particular in the soft tablet accommodated in the packaging box of this invention, An orally disintegrating tablet is mentioned as a typical thing. The orally disintegrating tablet is a tablet that is disintegrated by saliva in the oral cavity and can be taken without water, and examples thereof include tablets disclosed in International Publications WO95 / 20380, WO03 / 009831 and the like. Such an orally disintegrating tablet is a very fragile tablet, and the packaging box of the present invention can be effectively handled by holding the tablet without breaking it.

It is a perspective view which shows the external appearance before opening of the packaging box which concerns on one Embodiment of this invention. It is a perspective view of the state where goods were stored in the packaging box concerning one embodiment of the present invention. It is a perspective view of the contraction state of the buffer board of the packaging box concerning one embodiment of the present invention. It is a perspective view of the swelling state of the buffer plate of the packaging box which concerns on one Embodiment of this invention. It is sectional drawing ((a) is II sectional drawing of FIG. 3, (b) is II-II sectional drawing of FIG. 4) of the packaging box which concerns on one Embodiment of this invention. It is an expanded view of the box formation board | substrate of the packaging box which concerns on one Embodiment of this invention. It is an isometric view explanatory drawing of the box formation board | substrate of the state which assembled the buffer part. It is explanatory drawing of the maximum impact acceleration G which articles receive by a drop test.

Explanation of symbols

S Packaging Boxes a to d Connection (Perforated Lines)
f Broken line 1 Box forming substrate 2 Pillow 3 PTP packaging sheet 4 Tablet 10 Lid plate 10a Insertion flaps 12, 14, 16, 18 Side plates 13, 24a, 26a, 40, 41 Adhering pieces 13a, 25a, 27a, 40a, 40b, 41a, 41b Adhering portion 17 Flap 22 Bottom portion 24, 25, 26, 27 Bottom flap 30a, 30b Buffer portion 32, 33 Buffer plate 34, 35 First support plate 36, 37 Second support plate 38, 39 Side flap 38a, 39a First cut line 38b, 39b Second cut line 45 Punch hole 50 Cut line 52 Sheet

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.
1 to 8 relate to one embodiment of the present invention, FIG. 1 is a perspective view showing an appearance before opening of a packaging box, FIG. 2 is a perspective view of a state in which an article is stored in the packaging box, 3 is a perspective view of the cushioning plate of the packaging box in a contracted state, FIG. 4 is a perspective view of the cushioning plate of the packaging box in a bulging state, and FIG. 5 is a cross-sectional view of the packaging box. II sectional drawing, (b) is the II-II sectional drawing of FIG. 6 is a development view of the box-forming substrate of the packaging box, FIG. 7 is an explanatory perspective view of the box-forming substrate in a state where the buffer portion is assembled, and FIG. 8 is an explanatory diagram of the maximum impact acceleration G that the article receives by the drop test. It is.

(Configuration of packaging box)
The packaging box S of this example is a rectangular parallelepiped box for storing articles. As shown in FIG. 1, the packaging box S is a substantially hollow rectangular shape composed of a lid plate 10 and four side plates 12, 14, 16, 18. A shape body portion and a bottom portion 22 are provided.
The packaging box S is configured such that an article can be taken in and out from the upper surface by opening the cover plate 10.
In addition, buffer portions 30a and 30b in which buffer spaces for reducing the impact on the articles stored in the packaging box S are formed inside a pair of side surfaces facing the packaging box S.

The body portion is constituted by connecting four substantially rectangular side plates 12, 14, 16, and 18, and the side plate 12 and the side plate 16, and the side plate 14 and the side plate 18 are arranged substantially in parallel. Yes.
The cover plate 10 is formed in a substantially rectangular shape, and is connected to the upper side of the side plate 12 so as to be bent. As shown in FIGS. 2 and 3, an insertion flap 10 a is connected to the end side opposite to the side connected to the side plate 12 so as to be bent. In the closed box state, the cover plate 10 is fixed to the state shown in FIG. 1 by inserting the insertion flap 10a inside the side plate 16 (flap 17).
The bottom 22 is formed by combining the bottom flaps 24, 25, 26, and 27 connected to the lower side of the side plates 12, 14, 16, and 18 constituting the body.

Here, the connection between the above-described four side plates 12, 14, 16, 18 and other components will be described.
The side plate 12 is connected to the side plate 14 and the side plate 18 on both the left and right sides. The lid plate 10 is connected to the upper side and the bottom flap 24 is connected to the lower side so as to be bent.
The side plate 16 is disposed substantially parallel to the side plate 12 with a predetermined interval, and is connected to the side plate 14 and the side plate 18 on both the left and right sides. A flap 17 is connected to the upper side of the side plate 16 and a bottom flap 26 is connected to the lower side so as to be able to bend. The flap 17 is connected to the upper portion of the side plate 16 facing the side plate 16 to which the lid plate is connected in order to facilitate the insertion of the insertion flap 10a when the lid is opened and closed.
The side plate 14 and the side plate 18 are disposed substantially in parallel with a predetermined interval, and are connected to the side plate 12 and the side plate 16 on the left and right sides, respectively. First support plates 34 and 35 constituting buffer portions 30a and 30b are connected to the upper side of the side plate 14 and the side plate 18, and bottom flaps 25 and 27 are connected to the lower side so as to be bendable. Buffer portions 30 a and 30 b are formed inside the side plate 14 and the side plate 18.

Next, a characteristic configuration of the buffer units 30a and 30b of this example will be described.
Since the buffer portions 30a and 30b formed at two places are the same as each other, for convenience, one buffer portion 30a side formed inside the side plate 14 will be described as a representative.
As shown in FIG. 4, the buffer 30 includes a side plate 14, a buffer plate 32 arranged in parallel with the side plate 14 at a predetermined interval, a lid-side end of the buffer plate 32, and a lid of the side plate 14. From the first support plate 34, the first support plate 34 that connects the end portion on the side, the second support plate 36 that connects the bottom end portion of the buffer plate 32 and the inner surface of the side plate 14, and It is comprised from the side flap 38 extended in the inner side direction of the packaging box S. FIG.
In addition, a sticking piece 40 that is stuck to the inner side surface of the side plate 14 is connected to the side plate 14 side of the second support plate 36.

As shown in FIG. 6, the side flap 38 as a flap formed integrally with the first support plate 34 is formed by cutting out the central portion of the buffer plate 32. Specifically, a pair of first cut lines 38a, 38a formed from the lid side to the bottom side with a predetermined interval at a substantially central portion of the buffer plate 32, and a first cut line 38a A second cut line 38b connecting the bottom end portions is formed, and the first cut lines 38a and 38a and the portion cut out by being surrounded by the second cut line 38b in three directions are the cut lines. A side flap 38 is integrally connected to the first support plate 34 on the lid side that is not present.
Further, the connection portions b and c between the buffer plate 32, the first support plate 34, and the second support plate 36 are rough perforations and are formed to be bendable. Similarly, the connecting portion d between the first support plate 34 and the side plate 14 and the connecting portion a between the second support plate 36 and the sticking piece 40 are also formed with perforated perforations. Further, the sticking piece 40 connected to the second support plate 36 is stuck inside the side plate 14. The place where the sticking piece 40 is stuck is in the middle of the side plate 14 located slightly on the lid side from the end on the bottom side of the side plate 14, and is stuck together with the side plate 14 in the longitudinal direction. .

The movement of the buffer unit 30 will be described. 5A is a cross-sectional view taken along the line II in FIG. 3, and FIG. 5B is a cross-sectional view taken along the line II-II in FIG.
In the buffer portion 30, the side plate 14 and the buffer plate 32, and the first support plate 34 and the second support plate 36 are arranged in parallel, and these can be bent connection portions a, b, c. , D, the buffer space surrounded by the buffer plate 32, the side plate 14, the first support plate 34, and the second support plate 36 forms a parallelogram. By changing the angle of the first support plate 34 and the second support plate 36, it can be deformed inwardly of the trunk.
Here, since the side flap 38 is formed integrally with the first support plate 34, the buffer plate 32 can be expanded and contracted inward of the trunk portion according to the bending operation of the side flap 38. This is because the angle of the first support plate 34 changes in accordance with the change in the angle of the side flap 38, and the buffer plate 32 moves inward and outward of the body portion.

In this embodiment, a pillow packaged product (pillow) 2 in which a tablet 4 is enclosed will be described as an example of an article stored in the packaging box S. As shown in FIG. 2 and FIG. 5, four pillows 2 encapsulated in a state where a plurality of PTP packaging sheets 3 supporting tablets 4 are stacked are arranged side by side in parallel and stored. At this time, the PTP packaging sheet 3 is arranged so as to be parallel to the buffer plate 32. Moreover, the tablet 4 enclosed in the pillow 2 is an orally disintegrating tablet having a fragile property.
Since the buffer space is formed only when the side flaps 38 are bent, the take-out port is wide and the pillow 2 can be easily packed in the state where the side flaps 38 are upright.

When the side flaps 38 are bent inward, the buffer plate 32 bulges inward and comes into contact with the pillow 2 so that the gap between the pillow 2 and the inner surface of the packaging box S can be eliminated. Further, when the lid 10 is folded to close the packaging box S, the side flaps 38 are fixed in a folded state, so that the pillow 2 and the inner surface of the packaging box S are closed when the packaging box S is closed. It is possible to maintain a state in which there is no void.
Since the side flap 38 is folded inward so as to cover the pillow 2 from the lid side, as shown in FIG. 2, a sheet 52 such as a cautionary note or an advertisement is placed on the pillow 2 and the side flap 38 is folded down from above. By arranging so as to hold down, it is possible to maintain a state in which cautionary notes, advertisements, and the like are arranged in an easy-to-see manner even when the lid plate 10 is opened.

In the present invention, by providing such a buffer structure, the following effects can be obtained.
The buffer plates 32 and 33 provided on the side surfaces are expanded and contracted according to the folding operation of the side flaps 38 and 39 to form buffer spaces between the side plates 14 and 18 for protecting internal articles from impact, respectively. The buffer space is configured only when the buffer plates 32 and 33 are bulged. When the buffer plates 32 and 33 are contracted, the take-out port is wide and the boxing operation is facilitated. When the buffer plates 32 and 33 are bulged, a buffering effect can be obtained against external impacts. Specifically, the impact energy can be absorbed by the elastic deformation and plastic deformation of the buffer plates 32 and 33 and the side plates 14 and 18, and the article can be effectively prevented from being damaged.

Further, the side flaps 38, 39 are formed by portions cut out surrounded by the first cut lines 38a, 38a, 39a, 39a and the second cut lines 38b, 39b formed in the buffer plates 32, 33. Therefore, the side flaps 38 and 39 can be formed integrally with the first support plates 34 and 35, and the assembly of the packaging box S can be facilitated. Moreover, the optimal buffering effect can be obtained by adjusting the strength of the buffer plates 32 and 33 according to the shape of the side flaps 38 and 39 cut out. At this time, since the buffer plates 32 and 33 expand and contract in parallel with the side plates 14 and 18, the buffer plates 32 and 33 can be stably held from the side surface direction of the article.
Furthermore, the sticking pieces 40 and 41 sticking to the side plate side are continuously formed on the second support plates 36 and 37, and the sticking pieces 40 and 41 are separated from the bottom portions of the second support plates 36 and 37. Thus, since it is affixed on the side plates 14 and 18, assembly of a packaging box can be made easy.
Since the expansion and contraction of the buffer plates 32 and 33 can be made to follow the folding operation of the side flaps 38 and 39, it is difficult to be caught when the article is put in and out, and the packaging work and the work in and out of the article become easy. Therefore, the yield and work efficiency are increased, and the packaging cost can be reduced. It is also suitable for packaging on machines.

Next, the structure of the board | substrate for assembling the packaging box S of this example is demonstrated. FIG. 6 shows a development view of the box forming substrate 1 for assembling the packaging box S. As shown in FIG. The packaging box S shown in the present example is formed by folding and assembling a box forming substrate 1 made of a single sheet formed by punching blank paper (blank sheet).
The box forming substrate 1 has a configuration in which four side plates 12, 14, 16, and 18 constituting the body portion are connected in series in the waist direction, and other lid plates, bottom portions, and buffer portions are formed on the side portions of the side plates. The pieces are connected.
Here, the connection between the four side plates 12, 14, 16, 18 and other components in the state of the box forming substrate 1 will be described.
The side plate 12 is connected to the side plate 14 on one end side in the longitudinal direction and to the sticking piece 13 on the other end side. Further, the lid plate 10 is connected to one end side in the height direction, and the bottom flap 24 is connected to the other end side. An insertion flap 10 a is connected to the lid plate 10, and an adhesive piece 24 a is connected to the bottom flap 24.

The side plate 14 connected to one end side of the side plate 12 has the side plate 16 connected to the other end side, and a series of structural pieces forming the buffer portion 30a connected to one end side in the height direction. A bottom flap 25 is connected to the other end side of.
The side plate 16 connected to one end side of the side plate 14 has a side plate 18 connected to the other end side, a flap 17 connected to one end side in the height direction, and a bottom flap on the other end side in the height direction. 26 is connected. In the flap 17, a tear line 50 is formed by fine perforations at an opening portion that is fixed to the insertion flap 10 a when the cover plate 10 of the packaging box S is closed. Further, an adhesive piece 26 a is connected to the bottom flap 26.
The other end of the side plate 18 connected to one end of the side plate 16 is a free end. A series of structural pieces forming the buffer portion 30b is connected to one end side in the height direction, and a bottom flap 27 is connected to the other end side in the height direction. Each component piece is connected via a broken line f.

Since the buffer portions 30a and 30b are similar to each other, the buffer portion 30a connected to the side plate 14 will be described for convenience.
A series of constituent pieces forming the buffer portion 30a are connected to the first support plate 34, the buffer plate 32, the second support plate 36, and the sticking piece 40 from the side plate 14 side. Each of the perforated lines a, b, c, d is formed to be easily bent.
Further, the buffer plate 32 has a cut line 38a, 38a formed near the center as a first cut line, and a second of the ends of the first cut lines 38a, 38a as a second cut line. A second cut line 38b that connects the end portions on the support plate 36 side is formed. A region cut in three directions by these three cut lines 38a, 38a, and 38b is configured as a side flap 38 that is integrally connected to the first support plate 34 on the connected side. Thus, the amount of material used can be reduced by forming a cut in the buffer plate 34 and utilizing it as the side flap 38.

A hole 45 is formed between the second cut line 38b and the perforated line b. By forming the cutout hole 45, it is possible to smoothly cut out the constituent pieces that form the side flap 38 along the second cut line 38b when assembling the buffer portion 30a. It can also be adjusted. The width of the side flap 38 can be arbitrarily adjusted. By changing the size of the side flap 38, the buffer surface strength and the buffer effect can be adjusted.
The bottom portion 22 is configured by assembling bottom flaps 24, 25, 26, and 27.

Then, the assembly method of the box formation board | substrate 1 is demonstrated.
The box forming substrate 1 cut out from the blank paper (blank sheet) by the blade mold is first assembled with the buffer portions 30a and 30b.
The perforated line a is bent, and then the perforated line a is bent so that the adhering portion 40a of the adhering piece 40 is adhered (glued) to the adhering portion 40b of the side plate 14. At this time, the sticking piece 40 is disposed between the buffer plate 32 (first support plate 34) and the side plate 14. FIG. 7 shows the box forming substrate 1 in a state where the buffer portions 30a and 30b are assembled.
According to the present embodiment shown in FIG. 7, the sticking piece 40 is bent inward (lid side) and attached to the buffer portion 30a side of the side plate 14, but is bent outward (bottom side). You may stick to the bottom 22 side of the side plate 14. In order to smoothly bulge the buffer plate 32 by the folding operation of the side flap 38, it is preferable to fold the sticking piece 40 inward and stick it to the buffer portion 30a side of the side plate 14.
The same applies to the buffer portion 30b side.

Next, the sticking piece 13 connected to the side plate 12 is stuck to the sticking portion 13 a of the side plate 18. On the other hand, the bottom 22 is formed by sticking the sticking pieces 24a, 26a of the bottom flaps 24, 26 to the sticking portions 25a, 27a of the bottom flaps 25, 27 while being folded inward, and the state before the box making is obtained. . In addition, sticking of the sticking piece 13 and sticking of a bottom part are performed substantially simultaneously. Moreover, the process mentioned above can be performed with an assembly machine.
The packaging box S before boxing assembled in this way can be made into a box-making state very easily by pushing the bottom part 22 stuck and folded inside to the outside.

By folding and assembling one box forming substrate 1, the packaging box S having a buffer structure inside the side plates 14 and 18 can be raised in three dimensions. Therefore, the packaging box S that can reduce the sticking part and improve the workability and reduce the manufacturing cost, and can obtain a sufficient buffering effect against an external impact, at a low cost, and It can be provided by a simple manufacturing process.
In addition, the assembly process is composed of a folding process and a sticking process along the broken line f, and since the configuration and the number of times of folding and sticking are simple, it is suitable for assembly by a machine. Further, even in the state before the box making, it becomes a flat state without a raised portion, so that space saving at the time of storage can be achieved.
Furthermore, by sticking the sticking pieces 40, 41 to a position away from the bottom part 22 of the side plates 14, 18, it is possible to prevent the bottom flaps 24, 25, 26, 27 from being caught when the bottom part 22 is formed. . For this reason, the assembly workability can be improved, and the assembly property (machine compatibility) in the machine is also good, so that the production efficiency and the yield can be prevented from being lowered.

In order to assemble the packaging box S as in this example, it is possible even if the box forming substrate 1 does not have the same configuration as described above.
For example, the four bottom flaps 24, 25, 26, 27 in the box forming substrate 1 may be formed as substantially rectangular bottom flaps having insertion flaps like the cover plate 10.
For example, the buffer units 30a and 30b may be divided into a plurality of parts. In this case, for example, if the buffer portion 30a formed on the inner side of the side plate 14 is divided into two buffer portions having different heights, the gap is eliminated even when an article having a stepped shape is stored. Can do. Specifically, since the height of the buffer portion is determined by the length of the first support plate 34 and the second support plate 36 (the height of the support plate), the two heights of the support plates are different. The buffer portion may be formed on the side plate 14.

(Confirmation test)
The applicant of the present application confirms the buffering effect using the packaging box S of the present invention according to the configuration of the above-described embodiment (the present invention product) and the packaging box without a buffer mechanism as a comparative example (comparative product). A test was conducted to confirm the damage status of the contents. The test contents and test results are shown below.

(1) Specimen Two types of specimens A and B shown below were used. As an article for storing the pillow 2 in which the tablets 4 held in the PTP packaging sheet 3 are encapsulated, an acceleration sensor is attached to the article inside each test specimen in a state where the pillow 2 is packed in four specimens. .
-Specimen A: Buffer structure (product of the present invention)
-Specimen B: No buffer structure (comparative product)
The test body B of the comparative example has a structure in which the buffer portions 30a and 30b are not formed inside the side plates 14 and 18, and has the same internal dimensions as the buffer portions 30a and 30b of the present invention when bulging. ing. Other structures and dimensions are the same packaging box as the present invention.
Further, in order to confirm the actual effect, the test was also performed in a state where only the tablet 4 (orally disintegrating tablet) was stored with the acceleration sensor removed. That is, the test was performed in a state in which four pillows 2 each enclosing the tablets 4 held in the PTP packaging sheet 3 were boxed. The box packing was stored so that the PTP packaging sheet 3 enclosed in the pillow 2 was placed in a state of being piled up so as to be parallel to the buffer plates 32 and 33 (side plates 14 and 18 in the test body B).

(2) Test method Applying JIS standards (JISZ0200 (packaging cargo-evaluation test method general rules), JISZ0202 (packaging cargo-drop test method)) for drop tests on packaged cargo as a drop test method, storing the above-mentioned articles Each was dropped in a state, and the maximum impact acceleration G at the time of dropping was measured with an acceleration watch.
Moreover, in the test bodies A and B which accommodated the tablet 4, the presence or absence of the damage of the tablet 4 enclosed with the pillow 2 was confirmed. The drop height was 200 cm.

(3) Results FIG. 8 shows the maximum impact acceleration G in the drop test for the specimens A and B. As shown in this figure, in the test body A corresponding to the product of the present invention, the value of the maximum impact acceleration G is reduced to about ½ compared with the test body B.
Moreover, in the test body B, the tablet 4 damaged by the drop test was observed, but in the test body A, the tablet 4 was not damaged.

(4) Discussion According to the above results, the product of the present invention has an effect of reducing the maximum impact acceleration G as compared with the comparative example. Therefore, it has been confirmed that there is an effect that it is possible to more reliably prevent the stored article from being damaged by an external impact as compared with the configuration of the comparative example.

Claims (4)

A body part formed by bending a series of side plates at predetermined positions and connected to a substantially hollow rectangular shape, a cover plate formed on the upper part connected to the body part, and formed on the lower part connected to the body part The bottom made,
A flap extending toward the inside of the trunk,
A predetermined buffer portion formed on at least one of the side plates facing each other;
A packaging box formed by folding and assembling a single box-forming substrate comprising:
The buffer portion includes a substantially rectangular buffer plate disposed on the inner side than the side plate, a first support plate that is foldably connected to the lid plate side of the buffer plate and the side plate, A second support plate foldably connected to the bottom side of the buffer plate and the side plate;
According to the folding operation of the flap, the buffer plate expands and contracts inward of the body portion, and the buffer plate and the side plate, and the first support plate and the second support plate are spaced apart from each other by a predetermined distance. And a packaging box having a buffering function, wherein the packaging box has a cushioning function. A pair of first cut lines formed at a predetermined interval from the midway position of the connecting portion between the buffer plate and the first support plate toward the second support plate;
The second cut line formed between the first cut lines on the second support plate side, and
2. The packaging box having a buffer function according to claim 1, wherein the flap is formed by a portion cut out by being surrounded by the first cut line and the second cut line.   On the opposite side of the second support plate from the buffer plate, an adhesive piece continuously attached to the side plate is formed, and the adhesive piece is separated from the bottom portion of the second support plate. The packaging box having a buffer function according to claim 1 or 2, wherein the packaging box is fixed to the side plate as described above.   The packaging box according to claim 1 or 2, wherein the packaging box is for housing an orally disintegrating tablet.

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