JP2016060500A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box where a buffer is disposed within a box barrel part by folding a blank having a box barrel part formation part and a buffer formation part so as to be wound, buffering is performed by the buffer even in the longitudinal direction of the box barrel part and storing objects can be safety protected without using the buffer of separate components such as styrene foam, an air bag and the like.SOLUTION: End part buffer plates 21 are made by bending and raising respective facing end parts in the longitudinal direction of the box barrel part 2 at a buffer 5 to a direction orthogonal to the longitudinal direction of the box barrel part 2 and spaces 31 for buffering are formed between the end part buffer plates 21 and end part closing parts 3 facing the longitudinal direction of the box barrel part 2 at a box body 4.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a packaging box, in particular, a packaging box that can accommodate a horizontally long article represented by the shape of a toner cartridge and has a buffer function for protecting the article.

  Conventionally, toner cartridges for personal laser printers are stored and carried in cardboard packaging boxes. In order to protect and protect the inner cartridge from being shocked when an impact is applied by handling or carrying the storage work, it is boxed together with a buffer.

  In order to protect the items stored in the packaging box in this way, a bag containing air is used as a cushion to pack the gap between the stored items and the packaging box, or a sheet having a plurality of bulging portions filled with air. In this state, it is used instead of a shock absorber made of foamed polystyrene.

  In recent years, with regard to air bag type shock absorbers such as pneumatic bags and pneumatic sheets that enclose stored items, in the case where many products of the same shape such as the toner cartridge described above are individually placed in a packaging box and distributed, On the shipper side, it is necessary to prepare a large amount of the buffer body when the product is stored in the packaging box.

  In addition, the consumer who purchased the product also needs to separate and treat the packaging box made of cardboard and the cushioning body made of resin after taking out the stored items from the packaging box. It is becoming like.

  For the packaging form in which the stored items are stored in the packaging box with the separate cushioning body, the cushioning portion and the buffer constituting the box body are provided so that the corrugated packaging box is assembled to provide the cushioning body inside. Using a blank that is integrally provided with a part constituting the body, folding the blank from the part side constituting the buffer body into a folded shape and assembling the packaging box in which the buffer body folded inside the box body is located, There has been proposed a packaging form in which a product is inserted and disposed so as to be surrounded by a buffer body from an open insertion portion that is partially unsealed and then the insertion portion is closed.

  For example, in the techniques disclosed in Patent Documents 1 and 2, a box body forming part in which a plurality of face plates forming the box body part of the box body are continuous, and a buffer body positioned in the box body are formed. Using a blank integrally provided with a buffer body forming portion in which a plurality of face plates are continuous, a portion of the buffer body forming portion of the blank is folded into a folded shape, and a buffer body is assembled. The box body forming part is folded in a wrapping manner so as to surround the box body part of the box body.

  And about a buffer, it has a convex part which becomes convex toward the box body part from a bent part, and contact | abuts to the box body part. A buffering gap is formed between them.

Microfilm of actual application No.58-103663 Japanese Utility Model Publication No. 06-053425

  As described above, in the techniques disclosed in Patent Documents 1 and 2, a blank including a box body portion forming portion and a buffer body forming portion is folded into a winding shape from the end side of the buffer body forming portion, and the buffer body is first moved. After that, the box body is assembled so as to surround the buffer body, so that the buffer body can be obtained integrally inside the box body. For this reason, it is not necessary for the product producer to prepare a buffer separately, and the product purchaser can also eliminate the trouble of separating the box body and the buffer when disposing the storage box.

  However, in the packaging box shown in Patent Documents 1 and 2, the longitudinal direction of the box body (when the direction around the box body is horizontal, it is the top side and the bottom side, and the direction around the box body is vertical. In this case, there is no shock absorber on the left and right side surfaces), and there is only a portion where the flap of the box body is overlapped. There is a problem that the buffering action is poor.

  Therefore, in view of the above circumstances, the present invention is a packaging in which a blank provided with a box body portion forming portion and a buffer body forming portion is folded into a folded shape as described above, and a buffer body is provided inside the box body portion. Packaging that can protect the stored items safely without using a separate cushion such as foamed polystyrene or air bag, with the aim of enabling cushioning in the box in the longitudinal direction of the box body. The purpose is to provide a box.

(Invention of Claim 1)
The present invention includes a box body in which a top plate, a back plate, a bottom plate, and a front plate are continuous in a direction around the box body, and the box body is formed in a horizontally long rectangular tube, and a top buffer corresponding to the top plate. The back cushioning plate corresponding to the plate and the back plate and the bottom cushioning plate corresponding to the bottom plate are continuous in the direction around the box body, and are bent inside the box body in the direction around the box body. A convex portion that protrudes toward the box body at the bent portion and abuts against the box body, and the protrusion abuts against the box body to form a buffering gap with the box body. A cardboard box consisting of a cushioning body,
A blank provided with a box body forming portion in which the top plate, the back plate, the bottom plate, and the front plate are provided side by side, and a buffer body forming portion in which the top buffer plate, the back buffer plate, and the bottom buffer plate are provided side by side. In the packaging box in which the buffer body and the box body part surrounding the buffer body are formed by folding the buffer body part from the buffer body forming part to the box body part forming part.
An end buffer plate is provided by bending and raising each end of the buffer body, which is opposed to the longitudinal direction of the box body portion, in a direction perpendicular to the longitudinal direction of the box body portion, and the box in the end buffer plate and the box body The present invention provides a packaging box in which a buffering gap is formed between an end closing portion facing the longitudinal direction of the body portion and solves the above problems.

(Invention of Claim 2)
Further, in the present invention, the buffer body includes a front buffer plate that forms a buffer gap between the front plate and the front plate, and the upper plate and the upper plate. An extended buffer plate composed of an upper buffer plate that forms a buffer gap is provided by cutting and raising a part of the buffer itself,
It is preferable that the main body portion of the buffer body composed of the upper buffer plate, the rear buffer plate, and the bottom buffer plate and the extended buffer plate surround the stored item so as to go around the stored item.

(Invention of Claim 3)
Further, in the present invention, the upper surface shock absorber plate is provided with a center separation line formed of a perforation at the center of the folding portion between the front plate and the upper surface shock absorber plate, and the center separation line end. The upper surface plate, which is inclined to the rear buffer plate side from each of the portions and is formed with a perforated separation line extending from the end of the upper buffer plate, is overlapped with the upper buffer plate. Affixed to the part between the inclined separation lines in the longitudinal direction;
When the upper surface plate is raised, the sticking portion of the upper surface buffer plate to the upper surface plate is caused together with the upper surface plate, and the buffer body is separated from the box body at a position along the central separation line and the inclined separation line. Thus, it is preferable that the stored item can be taken out through an open portion formed in the box body portion by causing the top plate.

(Invention of Claim 4)
Further, in the present invention, the upper surface plate is provided with a locking portion by cutting a position intersecting the inclined separation line, and when the locking portion is pushed into the box body, the buffer body In the above-described division from the box body, the engagement portion is engaged with the upper surface buffer plate remaining piece formed with the dividing edge of the inclined separation line as one side, and the closed state of the upper surface plate is maintained. Is good.

(Effect of the invention of claim 1)
According to the first aspect of the present invention, the buffer body is provided in the box body portion so as to turn around the box body portion, and a part of the buffer body is provided on each end closing portion side in the box body portion. Since the folded end buffer plate is provided, it is possible to easily buffer the stored item even in the longitudinal direction of the box body, and the stored item can be stored safely.

(Effect of the invention of claim 2)
According to the invention of claim 2, since the buffer body is provided with the extended buffer plate composed of the front buffer plate and the upper buffer plate, the size of the buffer forming portion in the direction of winding is reduced. Even if the size is not increased, the stored items can be surrounded while using the front buffer plate and the upper buffer plate, and the cost of the material can be reduced by reducing the shape of the buffer forming portion.

(Effect of the invention of claim 3)
According to the invention of claim 3, by causing the upper surface plate in the box body portion, the buffer in the portion where the upper surface plate was located is divided, and the stored item is passed through the open portion that causes the upper surface plate. Since it is possible to take out, it is troublesome to pull out the stored item in the direction along the longitudinal direction of the box body after opening the flap constituting the end closing part in the box body as in the conventional case There is an excellent effect that the stored item can be easily taken out without needing to be used.

(Effect of the invention of claim 4)
According to the invention of claim 4, since the upper surface plate once opened is provided so as to be able to maintain the closed state, for example, the packaging box can be used as a storage box by storing used articles. Can be reused.

It is explanatory drawing shown in the state which looked at the example of implementation of the packaging box which concerns on this invention from diagonally upward. FIG. 2 is an explanatory view showing a cross section taken along the line AA in FIG. It is explanatory drawing which shows a blank of an example. It is explanatory drawing which shows the buffer body in a box main body. The buffer body in a box main body is similarly shown, and it is explanatory drawing shown in the state except the upper surface buffer board. It is explanatory drawing which shows the state bent to the winding shape of the buffer body. It is explanatory drawing which shows the state which pulled up the upper surface board and opened it. It is explanatory drawing which shows the state which resealed. It is explanatory drawing which shows the buffer body in the example of another Example in the state of a blank.

  Next, the present invention will be described in detail based on the embodiment shown in FIGS. In the figure, reference numeral 1 denotes a packaging box formed by assembling a single blank, and a buffer body 5 inside a box body 4 in which both ends of a box body portion 2 having a horizontally long rectangular tube shape are closed as end closing portions 3. Is disposed in the box body 4 so as to be surrounded by the buffer body 5, while the packaging material of the packaging box 1 is wound around the packaging material 6. It is obtained by folding it in a wound shape and raising it so as to form the end closing part 3 as well. See Figures 1 and 2.

(Box body forming part)
In the packaging box 1, a box body 4 and a buffer body 5 are integrated, and a blank 7 for assembling the packaging box 1 is shown in FIG. As shown in the drawing, the blank 7 includes a box body forming portion 8 and a buffer forming portion 9. The box body forming portion 8 has a box body forming portion 15 in which a top plate 10, a back plate 11, a bottom plate 12, and a front plate 13 are arranged side by side through a folding portion 14 in a direction around the box body portion. In addition, a face plate for constituting the end closing portion 3 is continuous with a portion of the side opposite to each other in a direction orthogonal to the continuous direction of each face plate 10, 11, 12, 13. An inner flap 16 is continuous with the bottom plate 12 via a folding portion 14, and an outer flap 17 is continued with the rear plate 11 and the front plate 13 via the folding portion 14.

(Buffer body forming part)
The shock absorber forming portion 9 is formed by arranging a top buffer plate 18, a back buffer plate 19, and a bottom buffer plate 20 side by side through a folding portion 14. And the said upper surface shock absorbing plate 18 is continuing through the folding part 14 on the opposite side to the bottom face plate 12 of the said front board 13, and it wraps from the bottom face shock absorbing board 20 side, and it folds and is made to be an upper surface shock absorbing. The plate 18, the back buffer plate 19, and the bottom buffer plate 20 are folded into a substantially U-shaped cross section to form a horizontally long buffer body 5. See FIG. 4 and FIG.

  Further, the buffer body 5 in a bent state is wound up so as to be wound around the box body portion forming portion 15, and the upper surface plate 10 and the upper surface buffer plate 18, which are the final portions of the box body portion forming portion 15, are wound. A rectangular cylinder-shaped box body portion 2 is formed by pasting together a part to be described later and surrounding the buffer body 5 and positioned inside. See Figure 2

  In each of the end closing portions 3, each of the inner flaps 16 of the box body portion forming portion 15 is folded, and then the continuous outer flap 17 is folded on the front plate 13 so as to overlap the inner flap 16. Further, the end closing portion 3 is formed by folding the continuous outer flap 17 on the back plate 11 so as to overlap the continuous outer flap 17 on the front plate 13, thereby forming the end oblong portion 3. A box body 4 having a prismatic shape is obtained.

  As shown in the state of the blank 7, both ends of the buffer body forming portion 9 in the longitudinal direction of the back buffer plate 19 (the longitudinal direction of the box body and the buffer body) are orthogonal to the longitudinal direction of the back buffer plate 19. An end buffer plate 21 configured to be able to fold up the end portion of the back buffer plate 19 is continuous through the folding portion 14. In addition, a triangular connecting plate 22 is connected to each of the end portions of the top buffer plate 18 and the bottom buffer plate 20, and this connecting plate 22 is located on both sides of the end buffer plate 21 (along the continuous direction of the buffer plates). It is continuous through the folding part on both sides in the direction. The end buffer plate 21 is bent while folding the buffer body forming portion 9 and with the folding of the connecting plate 22 on both sides, and at both ends of the substantially U-shaped buffer body 5. The end buffer plate 21 stands up with the back buffer plate 19 raised, and each of the connecting plates 22 is folded in a state opposite to the surface of the end buffer plate 21 facing the buffer body center side. The standing state of the end buffer plate 21 is maintained. See Figure 5

(Convex)
Reference numeral 23 denotes a buffer forming portion 9 developed as shown in the figure, from the upper buffer plate 18 to the rear buffer plate 19 side, from the rear buffer plate 19 to the upper buffer plate 18 side, and from the rear buffer plate 19. Is a convex portion formed by cutting from the bottom buffer plate 20 toward the bottom buffer plate 20 and from the bottom buffer plate 20 toward the back buffer plate 19, and the fold line 14 between the top buffer plate 18 and the back buffer plate 19. The position is a convex shape with the passing line position between the back buffer plate 19 and the bottom buffer plate 20 as the base end.

(Extended buffer plate)
Further, as shown in the blank 7, the bottom buffer plate 20 side is formed as a folded portion 14, and is substantially U-shaped from the end of the folded portion 14 through the position of the back buffer plate 19 to the central portion region of the top buffer plate 18. There is an extended buffer plate 24 that is cut into a mold and can be folded to the opposite side of the top buffer plate 18 in the form of the deployed buffer forming portion 9 with the folded portion 14 side on the bottom buffer plate 20 side as the base end. Is provided.

  The extended buffer plate 24 is in the form of the deployed buffer body forming portion 9 through the folding portion 14 in the order of the connecting plate 25, the front buffer plate 26, and the upper buffer plate 27 from the base end side. The extended buffer plate 24 is folded up and folded down to the side opposite to the box body portion forming portion 15 side with the bottom buffer plate 20 side as the center, and is folded at each of the folding portions 14. The front buffer plate 26 is opposed to the front plate 13 and the upper buffer plate 27 is opposed to the upper buffer plate 18 by folding the folded blank. See Figure 2

  Each of the small plates 26 and 27 of the extended buffer plate 24 also protrudes from the position of the folding portion 14 in the same manner as the buffer plate of the main body portion (the upper buffer plate, the rear buffer plate, and the bottom buffer plate) of the buffer body 5. In this way, a projection 23 is formed by cutting.

(Separation line)
The packaging box 1 in the present embodiment causes the upper surface plate 10 which is one surface of the box body 2 to divide the upper surface buffer plate 18 located in the buffer body 5 corresponding to the upper surface plate 10, so In order to facilitate the removal, a center separation line 28 and an inclined separation line 29 are formed in the upper buffer plate 18 as shown in the drawing. The center separation line 28 is formed by drilling a perforation at the center of the folded portion 14 between the front plate 13 and the upper buffer plate 18 of the box body 2. The inclined separation line 29 is formed by perforating from the respective end portions of the central separation line 28 to the rear buffer plate 19 side and extending to the end portion of the upper buffer plate 18.

(Raise)
By assembling the blank 7 having the above-described structure, the body portion of the buffer body 5 and the extended buffer plate 24 are arranged in a folded state inside the box body 2 having a rectangular tube shape. Thus, the packaging box 1 can be obtained which is housed so as to surround the storage 6 with the extended buffer plate 24. In obtaining this packaging box 1, the buffer body forming portion 9 in the blank 7 is bent from the bottom surface buffer plate 20 side in a folded manner, and the end portion located at the end portion of the back buffer plate 19 in the longitudinal direction. The buffer plate 21 is folded together with the connecting plates 22 on both sides thereof. See FIG.

  In addition, the extended buffer plate 24 is also folded from the bottom buffer plate 20, and the stored item 6 is arranged in a portion having a substantially U-shaped cross-section by folding the main body portion of the buffer body 5 into a folded shape. Then, the extension buffer plate 24 is folded so as to be hung on the storage article 6, and the storage article 6 is moved so that the main body portion of the buffer body 5 and the extension buffer body 24 rotate around the storage article 6. Further, the end cushioning plate 21 is in contact with the end portion of the stored item 6.

  The box body portion forming portion 15 is folded so that the stored item 6 and the buffer body 5 are wound together, and between the upper surface plate 10 and the upper surface buffer plate 18 on the end side of the winding (see FIG. A rectangular tube-shaped box body portion 2 is formed by adhering the adhering portion 30 formed in the longitudinal direction of the upper buffer plate. Further, in each of the end closing portions 3, the inner flap 16 is folded down, and the outer flap 17 on the front plate 13 side is folded so as to overlap both inner flaps 16, and the rear flap 11 side is put on the outer flap 17. By stacking and laminating the outer flaps 17, a horizontally long rectangular columnar packaging box 1 in which the stored items 6 are arranged is obtained.

  Since the shock absorber 5 is folded from the bottom shock absorber 20 side, the convex portions 23 of the shock absorbers 18, 19, 20 from the position of the folded portion 14 of the shock absorber 5 are outward. It will be overhanging. Further, even in the extended buffer plate 24, it is bent so as to surround the storage 6 with the main body portion of the buffer body 5, so that the connecting plate 25, the front surface from the position of the folded portion 14 of the extended buffer plate 24. The convex portion 23 of each of the buffer plate 26 and the upper buffer plate 27 is also projected outward. See Figure 2

  The box body 2 is formed in a state in which the cushioning body 5 around which the stored items 6 are wound is projected outward by forming the prismatic box body 2 by being folded into a folded shape. Placed inside. As shown in FIG. 2, the buffer body 5 and the extended buffer plate 24 have a cushioning gap between the convex portion 23 and the box body portion 2 by contacting the inner surface of the box body portion 2. The top buffer plate 18 forms a gap 31 with the corresponding top plate 10, the back buffer plate 19 forms a gap 31 with the corresponding back plate 11, and the bottom buffer plate 20. Forms a buffering gap 31 between the corresponding bottom plate 12. Similarly, the front buffer plate 26 forms a buffer gap 31 with the corresponding front plate 13, and the upper buffer plate 27 forms a buffer gap 31 with the corresponding upper plate 10. .

  In the buffer body 5, the connecting plate 22 that is continuous on both sides of the end buffer plate 21 is a projecting portion 23 that abuts the end closing portion 3 of the box body 4 from the inside of the box. A buffering gap 31 is also formed between the end closing portion 3 and the end closing portion 3 corresponding to the end buffering plate 21 corresponding to the end closing portion 3. Refer to FIGS.

  As described above, the stored items 6 stored in the packaging box 1 are held by the buffer body 5 including the extended buffer plate 24 that forms the buffer gap 31 around the box body portion 2 around the box body portion 2. At the same time, in the longitudinal direction of the box body portion 2, it is held by the end buffer plate 21 of the buffer body 5 in which a buffer gap 31 is formed between the end body closing portion 3 and the buffer body 5.

(Opened)
When the packaging box 1 is opened in order to take out the stored item 6, the packaging box 1 may be opened from the side of the final end when the upper surface plate 10 is wound. As described above, the upper buffer plate 18 is provided with the central separation line 28 at the central portion of the folded portion 14 between the upper plate and the upper buffer plate 18 at each end of the central separation line 28. An inclined separation line 29 is provided that reaches the central portion of the side side (side of the buffer body in the longitudinal direction). Further, the center position of the center separation line 28 is formed in an arc shape that is convex toward the front plate 13 side.

  At the time of opening, a fingertip or the like is pushed into the convex arc-shaped portion, and the perforation is first broken to raise the upper surface plate 10 upward. Since the upper surface plate 10 and the sticking portion 30 of the upper surface buffer plate 18 opposite to the upper surface plate 10 are bonded together, the central separation line 28 is cut by pulling up the upper surface plate 10, and the inclined separation line 29 is subsequently cut. Thus, the upper-surface buffer plate 18 has a triangular-shaped portion separated by the inclined separation line 29 and the upper edge position of the front plate 13 (folded position between the front plate and the upper-surface buffer plate). Separated as a piece 32 leaving the front plate 13 side. That is, the box body 4 and the buffer body 5 are separated.

  The inner flap 16 connected to the top plate 10 is not bonded to the outer flap 17 connected to the back plate 11 and the front plate 13 and the inner flap 16 connected to the bottom plate 12 in the end closing portion 3. As shown, the upper plate 10 is pulled up from the end closing portion 3 as the upper plate 10 is pulled up.

  Next, a hook-like locking piece 33 formed at a corner on the free single side of the upper buffer plate 27 of the extended buffer plate 24 is formed on the rear buffer plate 19 by cutting and raising the extended buffer plate 24. The holding edge 6 is released from the opening edge and the holding of the storage object 6 by the main body portion of the buffer body 5 and the extended buffer plate 24 is released. Thereafter, the stored item 6 is taken out through an open portion formed by pulling up the upper surface plate 10.

  The hook-shaped locking piece 33 engages the upper buffer plate 18 of the extended buffer plate 24 with the opening edge of the rear buffer plate 19 when the buffer body 5 is folded in a fold shape with the storage 6 as the center. Since the stored item 6 is held by the engagement between the upper cushioning plate 18 and the rear cushioning plate 19 via the locking piece 33, the folded fold can be properly performed. become. See Figure 4

(Re-sealing after opening)
As shown in FIG. 3, the upper surface plate 10 is provided with a pair of cuts 34 in the direction along the continuous direction of the face plate in the box body forming portion 15 from the free end side. Each of them is at a position intersecting the inclined separation line 29 of the upper buffer plate 18. A corner portion of a free edge which is cut by the pair of cuts 34 and becomes the center side of the upper surface plate 10 is formed as a locking portion 35.

  When the upper surface plate 10 of the packaging box 1 is opened and the stored item is taken out, the position of the center separation line 28 and the inclined separation line 29 is cut as described above, and the open portion formed by causing the upper surface plate 10 has an inclined portion. The triangular upper surface buffer plate remaining piece 32 having the side of the position of the separation line 29 as a side protrudes in a pair. See FIG.

  Then, for example, a used article is placed as a storage item so as to be accommodated in the buffer body 5 positioned inside the box body 4, and then the upper surface plate 10 is closed, and the locking portion 35 is directed toward the box body. If it is pushed into the box body 4 to enter the inside of the box body 4, the locking portion 35 is locked to the upper surface buffer plate remaining piece 32, and the closed state of the upper surface plate 10 is maintained. It becomes the packaging box 1 which put the storage thing in and resealed (refer FIG. 8).

  The inner flap 16 connected to the upper surface plate 10 is placed along the inner surface side of the outer flap 17 (front plate) so that it returns to the position of the end closing portion 3 with the movement of the upper surface plate 10 to be closed. Thus, since the inner flap 16 connected to the upper surface plate 10 follows the outer flap 17, the opening and closing operation of the upper surface plate 10 is stabilized.

  In the above embodiment, the locking piece 33 for engaging the upper buffer plate 27 of the extended buffer plate 24 with the back plate 11 side is provided in a hook shape, but the present invention is limited to this example. It is not something. FIG. 9 shows an example of a packaging box having a large storage capacity in the state of a developed blank 7.

  As shown in the blank 7 of this example, the locking piece 33 is placed in the side opposite to the longitudinal direction of the box body portion of the upper surface cushioning plate from the end on the free edge side of the upper surface cushioning plate 27. The area up to the position is formed in a protruding shape that extends in the longitudinal direction of the box body, and the corresponding portion of the front buffer plate 26 corresponding to the protruding locking piece 33 is cut out. It is easy to engage.

DESCRIPTION OF SYMBOLS 1 ... Packaging box 2 ... Box body part 3 ... End part closing part 4 ... Box main body 5 ... Buffer body 6 ... Storage thing 7 ... Blank 8 ... Box main body formation part 9 ... Buffer body formation part 10 ... Top plate 11 ... Back plate DESCRIPTION OF SYMBOLS 12 ... Bottom plate 13 ... Front plate 14 ... Folding part 15 ... Box trunk | drum formation part 18 ... Upper surface buffer plate 19 ... Back surface buffer plate 20 ... Bottom buffer plate 21 ... End buffer plate 23 ... Convex part 24 ... Extension buffer plate 26: Front buffer plate 27 ... Upper buffer plate 28 ... Center separation line 29 ... Inclined separation line 30 ... Adhering portion 31 ... Gap 32 ... Upper buffer plate remaining piece 33 ... Locking piece 34 ... Notch 35 ... Locking portion

Claims (4)

A box body in which the top plate, the back plate, the bottom plate, and the front plate are continuous in the direction around the box body, and the box body is in the shape of a horizontally long rectangular tube, and the top buffer plate and the back plate corresponding to the top plate The back buffer plate corresponding to the bottom plate and the bottom buffer plate corresponding to the bottom plate are continuous in the direction around the box body, and are arranged to be bent in the direction around the box body inside the box body. The bumper has a convex portion that protrudes toward the box body at the portion and abuts against the box body, and the convex portion abuts against the box body and forms a buffer gap with the box body A cardboard box consisting of
A blank provided with a box body forming portion in which the top plate, the back plate, the bottom plate, and the front plate are provided side by side, and a buffer body forming portion in which the top buffer plate, the back buffer plate, and the bottom buffer plate are provided side by side. In the packaging box in which the buffer body and the box body part surrounding the buffer body are formed by folding the buffer body part from the buffer body forming part to the box body part forming part.
An end buffer plate is provided by bending and raising each end of the buffer body, which is opposed to the longitudinal direction of the box body portion, in a direction perpendicular to the longitudinal direction of the box body portion, and the box in the end buffer plate and the box body A packaging box characterized in that a buffering gap is formed between an end closing portion facing the longitudinal direction of the body portion. The cushioning body includes a front cushioning plate that forms a cushioning gap between the front plate and the front plate, and a cushioning plate between the top plate and the top plate. An extended buffer plate composed of an upper buffer plate that forms a gap is provided by cutting and raising a part of the buffer itself,
The packaging bag according to claim 1, wherein a main body portion of a buffer body including an upper buffer plate, a rear buffer plate, and a bottom buffer plate and the extended buffer plate surround the stored item so as to surround the stored item. The upper cushioning plate has a center separation line made of a perforation at the center of the fold between the front plate and the upper cushioning plate, and the rear cushioning from each end of the center separation line. The upper surface plate, which is inclined to the plate side and is perforated across the end portion of the upper surface buffer plate, is perforated, and is superimposed on the upper surface buffer plate, so that the upper surface plate is inclined in the longitudinal direction of the upper surface buffer plate. Affixed to the part between the separation lines,
When the upper surface plate is raised, the sticking portion of the upper surface buffer plate to the upper surface plate is caused together with the upper surface plate, and the buffer body is separated from the box body at a position along the central separation line and the inclined separation line. The packaging box according to claim 1, wherein the stored item can be taken out through an open portion formed in the box body by causing the top plate.   The top plate is provided with a locking portion by cutting a position intersecting the inclined separation line, and when the locking portion is pushed into the box body, the buffer body from the box body is The packaging box according to claim 3, wherein the engaging portion is engaged with a remaining piece of the upper cushioning plate formed by dividing the inclined separation line as one side to maintain the closed state of the upper plate.

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