JP3120064U - Packaging box - Google Patents

Abstract

Provided is a packaging box that can be easily broken into a flat state during post-processing even when a break line is formed between a lid plate and a side plate.
One of cover plates formed continuously from side plates 11 to 14 constituting a body portion 10 is formed of an inner cover plate 30 and an outer cover plate 40, and a breaking line for press-cuts formed on the side plate 12. 45 and the breaking line 43 for incision formed so as to reach each side edge 40a of the outer lid plate 40 are formed continuously, and the inner lid plate 30 is incised in a state of being superimposed on the outer lid plate 40. An easy fold curve 33 was formed at a portion almost overlapping with the breaking line 43 for use. Even if the both sides of the front end side of the inner lid plate 30 come into contact with the remaining portion 42 of the outer lid plate 30 left on the side plate 12 after the outer lid plate 40 is separated from the side plate 12, Since the formed easy folding piece 32 is bent along the easy folding curve 33, the inner lid plate 30 smoothly opens the outer lid plate 40 and the inner lid plate 30 without resisting the opening operation of the outer lid plate 40. can do.
[Selection] Figure 3

Description

  The present invention relates to a packaging box formed from a sheet material such as paperboard or cardboard, and more particularly to a packaging box that can be easily crushed and folded into a flat state when discarded after use. .

  Conventionally, when forming a packaging box that accommodates various articles, a break line such as a perforation has been formed on a side plate that constitutes the body portion or a lid portion that is connected to the body portion so as to facilitate post-processing. Various packaging boxes that can be broken along the breaking line when discarded have been developed and put to practical use.

  And as a conventional packaging box in which a break line such as a perforation is formed on the side plate so as to facilitate post-processing, Patent Document 1 includes a body portion composed of four side plates arranged in a rectangular tube shape, The lid portion is provided at the periphery of the upper end opening of the body portion, and the bottom portion is formed by combining the bottom flaps provided at the lower portions of the side plates, and is connected to the lower portions of the pair of side plates facing each other. The bottom flaps that stick out are bonded together and connected, and the bottom flaps that continue to each lower part of the other side plate are folded inward without sticking to the other bottom flaps, and both ends of the lower edge of the other side plate Whereas no breakable line is provided between the parts, a pair of side plates is provided with a breakable line connecting both ends only at both ends of the lower edge of at least one side plate. At least part of the middle part protrudes upward Intruded into the plate packaging box is disclosed in which forms the 押破 portion between the frangible line and the side plate lower edge.

  In addition, as a conventional packaging box in which a break line such as a perforation is formed so as to be continuous with the side plate and the lid portion so as to facilitate post-processing, Patent Document 2 is connected to each side surface and folded inside. End face flaps that have end face flaps, on the outside of these end face flaps, the bottom face side end pieces that are connected to the bottom face and do not reach the top face, and the upper face side end face pieces that are connected to the top face and do not reach the bottom face Are attached to the bottom side end face piece and the top side end face piece, and the two starting points are on the connecting edge between the bottom side end face piece and the bottom face or on the connecting edge between the top side end face piece and the top face. Formed indentation perforations in the form of bulging lines that connect two points to the bottom or top surface, and formed perforations for incision reaching each side of the bottom side end face piece or top side end face piece from each of the starting points A foldable tissue carton is disclosed.

Furthermore, as a conventional packaging box in which break lines such as perforations are formed continuously from the side plate and the lid so as to facilitate post-processing, Patent Document 3 discloses a paper-like body with cuts as a polyhedron. The initial opening surface adjacent to the opening surface through one ridge line has an opening surface that breaks when a predetermined stress is applied and the cut breaks, and has a large opening area. A substantially arc-shaped cut-off cut that connects two end points arranged on the boundary ridge line with an interval of about the width of the finger, and the cut-off for push-cut by pressing the initial opening around the cut-off cut with a finger The initial opening is made by breaking, and the opening surface has a guide cut that extends slightly perpendicularly to the boundary ridge line, continuous to the cut edge for the initial opening surface, and a boundary that continues to the guide cut. To the vicinity of the side of the opening adjacent to the ridgeline Disclosed is an easy-open packaging box that is provided with an incision cut and that opens the opening by opening the guide cut and the incision cut around the guide cut and the incision cut. Yes.
Utility Model Registration No. 2606789 Japanese Patent No. 36553301 JP 2003-231518 A

In order to form a packaging box that is easy to dispose of after use, the packaging box of Patent Document 1 is provided with an easy-breaking line that connects both ends only at both ends of the lower edge of at least one side plate. A part of the middle part of the break line protrudes upward and enters the side plate, and a break portion is formed between the easy break line and the lower edge of the side plate. The line is broken and the bottom part is separated from the side plate, but the easy break line is formed across the entire width of the side plate so as to connect both ends of the lower edge of the side plate, When this force is applied, the force concentrates on the portion of the easily breakable line, and the strength of the packaging box may not be sufficiently maintained.
In particular, when a part of the easily breakable line is damaged during the use of the packaging box, the force concentrates on the damaged part of the easily breakable line, and the strength of the packaging box cannot be sufficiently maintained.

In addition, as a packaging box that further improves folding processing in consideration of disposal processing after use, Patent Document 2 discloses a tissue carton formed by folding a perforation between a side plate and a lid plate. Has been.
However, in the foldable tissue carton of Patent Document 2, the perforations are formed on the bottom side end face piece and the bottom face, that is, over the inner lid plate and the side surface of the packaging box, and the bottom side end face piece (the inner lid plate) It is not considered to form a perforation across the upper surface side end surface piece (outer cover plate) and the bottom surface (side plate) that are stacked and attached to each other), and there is room for further improvement.

  Further, as in the tissue carton of Patent Document 2, it is disclosed in Patent Document 3 that a cut is formed across the side plate and the cover plate. However, the easy-open packaging box of Patent Document 3 is similar to the foldable tissue carton of Patent Document 2, and the cut for incision and the incision for incision are formed on the opening side plane piece for the small side surface and the opening side plane, that is, It is formed across the inner lid plate and the side of the packaging box, and the small side opening side plane side piece (inner lid plate) is laminated and adhered to the small side exhibition side plane side piece (outer lid plate) and display. It is not considered to form the cut for incision and the cut for incision over the side plane (side surface), and there is room for improvement.

  The present invention has been made in view of the above-described conventional circumstances. Even when a break line is formed across the cover plate and the side plate of the packaging box, it is easy to perform the post-treatment after use. An object of the present invention is to provide a packaging box that can be broken to a flat state and that can reliably maintain strength during use.

  In order to achieve the above object, the device according to the first aspect of the present invention includes a trunk portion 10 formed in a rectangular tube shape from four side plates 11 to 14 and a one-side opening portion of the trunk portion 10. It is composed of a pair of lid plates 30 and 40 formed so as to be connected to the side plates 11 and 12 so as to be closed, and is continuous to the side plate 12 and the lid plate 40 from the side plate 12 to the lid plate 40. In the packaging box in which the breaking line is formed, the pair of cover plates overlaps the inner cover plate 30 formed by connecting the side plates 11 via the inner cover plate fold line 31 and the inner cover plate 30. The outer cover plate 40 is formed by being attached to the side plate 12 through the outer cover plate fold line 41, and the breaking line is bent along the outer cover plate fold line 41. 44, and the outer cover plate 45, the breaking line 45 for press cutting formed so as to project to the side plate 12 side so as to partition 44. And an incision break line 43 formed so as to reach each side edge 40a of the outer lid plate 40 continuously from both ends of the push-off break line 45, and the inner lid plate 30 is characterized in that an easy-folding curve 33 is formed at a portion that substantially overlaps the incision breaking line 43 in a state of being laminated and adhered to the outer lid plate 40.

  In order to achieve the above object, the device according to claim 2 is the device according to claim 1, wherein the inner cover plate 30 and the outer cover plate 40 are respectively formed of the body portion 10. It is characterized in that it is formed in a size that closes almost the entire surface of the opening.

  Furthermore, in order to achieve the above object, the device according to claim 3 is characterized in that, in the device according to claim 1 or 2, the easy fold curve 33 is formed to be breakable. To do.

  Furthermore, in order to achieve the said subject, the device which concerns on the packaging box of Claim 4 is the device in any one of Claims 1-3. WHEREIN: The said breaking line 43 for an incision is the said outer cover board 40. And the inner lid plate 30 is formed at a site that does not interfere with the pasted portion.

  In order to achieve the above-mentioned object, the device according to the fifth aspect of the present invention includes a trunk portion 10 formed in a rectangular tube shape from four side plates 11 to 14 and both side opening portions of the trunk portion 10. In a packaging box comprising a lid plate formed continuously with the side plates 11 and / or 12 so as to be closed, one of the lid plates is folded on the side plate 11 with the inner lid plate folded. An inner lid plate 30 formed continuously through the eyes 31 and an outer lid formed by being overlapped and adhered to the inner lid plate 30 and continuously formed on the side plate 12 through an outer lid plate fold 41. The side plate 12 is formed with a cut line 45 for pressing so as to protrude toward the side plate 12 so as to define a pressing portion 44 that is bent along the outer cover plate fold line 41. The outer cover plate 40 is continuously connected to both ends of the breaking line 45 for pressing, respectively. An incision break line 43 is formed so as to reach each side edge 40a of 0, and the incision break line 43 is attached to the inner lid plate 30 so as to overlap the outer lid plate 40. An easy-folding curve 33 is formed in a portion that substantially overlaps the cover plate. On the other hand, among the cover plates, the other cover plate has a cover portion 21 that can be re-covered, a plug portion 22, a zipper portion 23, and a sticking portion. 24 is formed by sequentially connecting 24.

  In order to achieve the above object, the invention according to claim 6 is the invention according to claim 5, in which the inner lid plate 30 and the outer lid plate 40 are respectively connected to the body portion 10. It is characterized in that it is formed in a size that closes almost the entire surface of the opening.

  Furthermore, in order to achieve the above object, the device according to claim 7 is characterized in that, in the device according to claim 5 or 6, the easy folding curve 33 is formed to be breakable. To do.

  Furthermore, in order to achieve the said subject, the device which concerns on the packaging box of Claim 8 is the device in any one of Claims 5-7. WHEREIN: The said breaking line 43 for an incision is the said outer cover board 40. And the inner lid plate 30 is formed at a site that does not interfere with the pasted portion.

The present invention is basically characterized by the above matters. However, the size of the outer cover plate of the pair of cover plates that close the one-side opening of the body portion of the packaging box is determined in the folding direction. You may form in the magnitude | size which closes substantially half or more of the opening part of a part.
In addition, the outer lid plate may be stuck only to the inner lid plate, but the inner lid plate may be stuck to the left and right side plate folding pieces so that they can be easily peeled off when opened.
Furthermore, among the cover plates that close the opening portions on both sides of the body portion of the packaging box, the other cover plate that is not a pair of cover plates composed of the inner cover plate and the outer cover plate is only a zipper portion and a sticking portion. It may be configured. In that case, it is not necessary to form the finger notch on the side plate.
In addition, although this invention is targeting the packaging box provided with the trunk | drum formed in the square cylinder shape, it is good also considering the packaging box provided with the other polygonal cylindrical trunk | drum. Further, as a material for forming the packaging box, not only a sheet material such as cardboard or paperboard but also a breakable plastic sheet material may be used.

According to the device related to the packaging box according to claim 1, a pair of lid plates forming the packaging box is formed from the inner lid plate and the outer lid plate, and a breaking line is formed across the outer lid plate and the side plate. Even in the case of post-processing of the packaging box after use, the packaging box can be easily broken by continuously breaking the breaking line for pressing formed on the side plate and the breaking line for cutting formed on the outer cover plate. It can be broken into a flat state.
In this case, since the inner lid plate is formed with an easy-folding curve at a portion that substantially overlaps the incision break line of the outer lid plate in a state where it is stuck on the outer lid plate, the outer lid plate is removed from the side plate. Even if the outer cover plate remaining portion left on the side plate during the operation of breaking and separating comes into contact with both side portions on the front end side of the inner cover plate, the easy folding pieces formed on both side portions on the front end side of the inner cover plate are easy. Since it is bent along the folding line, the outer lid plate can be smoothly opened together with the inner lid plate without resisting the opening operation of the outer lid plate.

  Further, according to the device related to the packaging box according to claim 2, in addition to the effect of claim 1, the inner lid plate and the outer lid plate are formed to have a size that closes substantially the entire opening of the trunk portion. As a result, the gap between the outer lid plate and the opening is closed by easy-bending pieces formed on both sides of the tip of the inner lid plate, and foreign matter is removed from the gap between the outer lid plate and the opening. Intrusion can be prevented.

  Furthermore, according to the device related to the packaging box according to claim 3, in addition to the effect of claim 1 or 2, even when the outer lid plate is firmly attached to the inner lid plate, Since the easy folding curve of the inner lid plate is broken, the outer lid plate can be smoothly opened together with the inner lid plate.

  Furthermore, according to the device related to the packaging box according to claim 4, in addition to the effect of any one of claims 1 to 3, in the case of trying to break the bonded portion between the outer lid plate and the inner lid plate As described above, it is possible to avoid a situation in which the force required for breakage becomes large and separation becomes difficult.

According to the device related to the packaging box according to claim 5, even if one lid plate is formed from an inner lid plate and an outer lid plate, and a break line is formed across the outer lid plate and the side plate, During post-processing of the packaging box after use, the packaging box can be easily broken and flattened by continuously breaking the breaking line for pressing formed on the side plate and the breaking line for cutting formed on the outer lid plate. It can be.
In this case, since the inner lid plate is formed with an easy-folding curve at a portion that substantially overlaps the incision break line of the outer lid plate in a state where it is stuck on the outer lid plate, the outer lid plate is removed from the side plate. Even if the outer cover plate remaining portion left on the side plate during the operation of breaking and separating comes into contact with both side portions on the front end side of the inner cover plate, the easy folding pieces formed on both side portions on the front end side of the inner cover plate are easy. Since it is bent along the folding line, the outer lid plate can be smoothly opened together with the inner lid plate without resisting the opening operation of the outer lid plate.
In addition, since the other lid plate is formed by sequentially connecting a lid portion that can be re-covered, a plug-in portion, a zipper portion, and a sticking portion, and after the packaging box is opened, The packaging box can be reused by using the plug-in part.

  Moreover, according to the device concerning the packaging box of Claim 6, in addition to the effect of Claim 5, an inner cover board and an outer cover board are formed in the magnitude | size which closes the substantially whole surface of the opening part of a trunk | drum. As a result, the gap between the outer lid plate and the opening is closed by easy-bending pieces formed on both sides of the tip of the inner lid plate, and foreign matter is removed from the gap between the outer lid plate and the opening. Intrusion can be prevented.

  Further, according to the device of the packaging box according to claim 7, in addition to the effect of claim 5 or 6, even when the outer lid plate is firmly adhered to the inner lid plate, Since the easy folding curve of the inner lid plate is broken, the outer lid plate can be smoothly opened together with the inner lid plate.

  Furthermore, according to the device related to the packaging box according to claim 8, in addition to the effect of any one of claims 5 to 7, in the case of trying to break the bonded portion between the outer lid plate and the inner lid plate As described above, it is possible to avoid a situation in which the force required for the breakage becomes large and the separation becomes difficult.

Hereinafter, the packaging box which concerns on 1st embodiment of this invention is demonstrated based on FIGS. 1-4.
The packaging box according to the first embodiment of the present invention is a sheet material such as cardboard or paperboard developed as shown in FIG. 1, and each fold 16, 16, 26, 31, as shown in FIG. The inner lid plate 30 and the outer lid plate 40, which are formed to have a size that closes the entire surface of the opening portion of the barrel portion 10 after the elongated barrel portion 10 is formed along the inner lid plate, 30, the outer lid plate 40 is overlapped, and the portion of the outer lid plate 40 excluding the portion where the incision break line 43 is formed, that is, the distal end side of the portion of the outer lid plate 40 where the incision break line 43 is formed. The parts are attached to the corresponding parts of the inner lid plate 30 and assembled for use.
In this case, the inner lid plate 30 may be attached to the left and right side plate folding pieces 13a and 14a or may not be attached. It is possible to store even a certain article. Moreover, when not sticking, it can be opened with a small force.

When the packaging box according to the first embodiment of the present invention is opened from the assembled state as shown in FIG. 2, first, the zipper portion 23 is broken along the breaking line 25 for opening. It separates and the lid | cover part 21 and the insertion part 22 are open | released from the trunk | drum 10. FIG. Next, when reusing the packaging box, after taking out the article stored in the packaging box, the insertion part 22 is inserted into the opening part of the body part 10 and the opening part of the packaging box is opened by the lid part 21. It can be re-covered and used repeatedly.
Further, when the packaging box is discarded after the articles stored in the packaging box are taken out, as shown in FIG. 3, the pressing part 44 is pressed with a finger (usually a thumb), and the breaking line 45 for the pressing part. When the pressing part 44 is pushed into the body part 10 along the cutting line 44, the pressing part 44 is bent along the pressing part fold 46. Thereafter, the outer cover plate 40 is pulled along the incision breaking line 43 by pulling the outer cover plate 40 toward the outer side in the longitudinal direction of the trunk portion 10 while the thumb is hooked on the press-cut portion 44 and the press-cut portion fold 46. The outer lid plate 40 is released from the body portion 10 together with the inner lid plate 30 that is broken and cut off and adhered to the outer lid plate 40. Thereafter, as shown in FIG. 4, the body 10 can be folded flat and discarded.

Furthermore, the packaging box according to the first embodiment of the present invention has the incision breakage of the outer lid plate 40 in the inner lid plate 30 when the outer lid plate 40 is broken along the incision breaking line 43. Since the easy folding curve 33 is formed at a portion that substantially overlaps the line 43, the easy folding pieces 32 formed on both sides of the front end side of the inner lid plate 30 abut against the uncut portion 42 of the outer lid plate 40. At this time, the easy-folding piece 32 is bent along the easy-folding curve 33 so that it can be smoothly opened without resisting the opening operation of the outer lid plate 40.
Further, when the outer lid plate 40 is laminated on the inner lid plate 30 and adhered, the inner lid plate 30 and the outer lid plate 40 are formed to have a size that closes almost the entire surface of the opening portion of the body portion 10. Since the gap between the opening 40 of the body 10 and the opening of the body 10 is closed by the easily bent pieces 32 formed on both sides of the front end of the inner cover 30, the outer cover 40 and the opening of the body 10 Foreign matter does not enter through the gap between the two.
Hereinafter, the packaging box which concerns on 1st embodiment of this invention is demonstrated in detail using the code | symbol attached | subjected to FIGS. 1-4 attached.

FIG. 1 is a view showing a developed state of a sheet material forming a packaging box according to a first embodiment of the present invention. This sheet material is a paper material such as paperboard or cardboard, or a plastic sheet. It is composed of materials.
The unfolded sheet material includes a front plate (side plate) 11, a right side plate (side plate) 13, a rear side plate (side plate) 12 and a left side plate (side plate) 14 that form the body 10 of the packaging box in this order. It is formed by connecting. Further, the front plate 11 is formed with an adhering plate 15 continuously, and the front plate 11, the right plate 13, the rear plate 12, the left plate 14 and the adhering plate 15 are each a body fold 16. 2, and the sticking plate 15 is bonded to the left side plate 14, thereby forming a rectangular tube-like elongated body 10 as shown in FIG. 2.

In addition, an inner lid plate 30 is formed on one end side of the front side plate 11 so as to be connected via an inner lid plate fold line 31, and a lid portion 21 is a lid on the other end side of the front side plate 11. They are formed in a connected manner through partial folds 26.
The inner lid plate 30 is formed to have a size so as to close almost the entire opening of the body portion 10, and the inner lid plate 30 is provided with easy-folding pieces 32 at both ends on the distal end side thereof. It is formed by being connected through a curve 33. Each easy folding curve 33 is formed so as to substantially overlap the incision break line 43 in the same shape as an incision break line 43 formed in the outer lid plate 40 described later. Each foldable piece 32 is formed so as to be bent in conjunction with the opening operation of the outer lid plate 40 when it is broken and separated. The easy fold curve 33 can be formed by a continuous broken line or a fold curve having a groove shape in which non-hole portions are continuously formed.
Moreover, the insertion part 22, the zipper part 23, and the sticking part 24 are connected and formed in this order at the cover part 21 connected with the front side board 11 via the cover part fold 26. FIG. The lid portion 21 and the insertion portion 22 are formed so as to be connected via an insertion portion fold line 27, and the insertion portion 22 and the attachment portion 24 are formed between the insertion portion 22 and the attachment portion 24. The zipper part 23 disposed between them is connected to each other through a continuous tearing breaking line 25 that is formed in a continuous manner.

The rear plate 12 is formed with an outer cover plate 40 connected to one end of the rear plate 12 via an outer cover plate fold 41, and a finger-hanging cutout 50 is provided on the other end of the rear plate 12. A recess is formed so as to enter the rear plate 12. When the packaging box is to be reused after the packaging box is opened, the finger-hanging notch 50 hangs the tip of a finger such as a thumb on the insertion portion 22 when the lid 21 is re-covered. It is formed in such a size that 21 can be opened.
Further, the rear plate 12 enters the rear plate 12 in order to form an outer cover plate fold 41, that is, a pressing part 44 that is bent along the pressing part fold 46 that is continuous with the outer cover plate fold 41. In this way, a continuous cut-off breaking line 45 having a substantially arc shape is formed. The push-cut breaking line 45 is formed to have a width larger than that at which the tip of a finger (usually a thumb) can be pushed into the push-cut breaking line 45 and the push-cut portion 44 can be pushed into the body portion 10.

Further, the outer lid plate 40 is formed to have a size that closes the substantially entire surface of the opening of the body portion 10, and the outer lid plate 40 is continuously outside from both ends of the breaking line 45 for pressing. A continuous cut incision line 43 for cutting is formed so as to extend toward the end so as to reach each side edge 40a of the plate 40. The incision breaking line 43 is a portion where the outer lid plate 40 and the inner lid plate 30 are adhered when the outer lid plate 40 is attached to the inner lid plate 30, that is, the incision fracture of the outer lid plate 40. It is formed so as not to interfere with the portion on the tip side of the portion where the line 43 is formed and the corresponding portion of the inner lid plate 30. In addition, a pair of substantially triangular outer lid uncut portions 42 are formed in the outer lid plate 40 between the outer lid plate fold line 41 excluding the press cut part fold line 46 and the incision breaking line 43. . By forming the pair of outer lid cut remaining portions 42, the break lines 43, 45 formed from the push break line 45 and the cut break line 43 are formed in a substantially mountain shape. The work becomes easy, and the packaging box can be easily folded into a flat shape as shown in FIG.
The right side plate 13 is connected to the right side plate folding pieces 13a on both sides thereof, and the left side plate 14 is connected to the left side plate folding pieces 14a on both sides thereof via side plate folding piece folds 17, respectively. Is formed.

Next, a method for assembling the packaging box according to the first embodiment of the present invention will be described.
The packaging box according to the first embodiment of the present invention is assembled by the following procedure.
(1) First, the sheet material formed in the unfolded state as shown in FIG. 1 is bent along each body fold line 16, and the sticking plate 15 is attached to the left side plate 14. A square cylindrical body 10 is formed from ˜14.
(2) Next, each right side plate folding piece 13a of the right side plate 13 and each left side plate folding piece 14a of the left side plate 14 are arranged along each side plate folding piece fold 17 so as to cover each opening of the trunk portion 10. Bend it.
(3) Next, the inner lid plate 30 is bent along the inner lid plate fold line 31 so as to cover the opening of the body portion 10, and the inner lid plate 30 is folded into the right side plate folding piece 13a and the left side plate folding. It sticks to the piece 14a. The procedure for attaching the inner lid plate 30 to the right side plate folding piece 13a and the left side plate folding piece 14a may be omitted.
(4) Next, the outer lid plate 40 is bent along the outer lid plate fold line 41 so as to cover the opening of the body portion 10, and the distal end side of the outer lid plate 40, that is, the incision breaking line 43. The portion of the outer lid plate 40 that is on the front end side of the portion where the is formed is attached to the inner lid plate 30.
(5) Finally, the lid portion 21 is folded along the lid portion fold line 26 so as to cover the opening of the body portion 10, and the insertion portion 22 is folded along the insertion portion fold line 27 to be pasted. The attaching portion 24 is attached to the rear side plate 12. As a result, a packaging box as shown in FIG. 2 is assembled.
Before the inner lid plate 30 and the outer lid plate 40 are attached, or before the attaching portion 24 is attached, the article is stored in the body portion 10.

Next, the usage of the packaging box according to the first embodiment of the present invention will be described.
First, when opening the packaging box, from the state shown in FIG. 2, the end of the zipper part 23 is grasped with a finger, and the zipper part 23 is broken and removed along the breaking line 25 for opening.
Then, as shown in FIG. 3, the insertion part 22 is cut off from the sticking part 24, the cover part 21 is opened and it becomes a free state, and the articles stored in the trunk part 10 of the packaging box can be taken out. .
Thereafter, when the article stored in the packaging box is taken out and then the taken-out article is stored in the packaging box again, the insertion portion 22 is inserted into the body portion 10 and the lid portion 21 opens the opening portion of the packaging box. By re-applying the lid, the packaging box can be used repeatedly.
When the lid portion 21 of the packaging box that has been re-covered is opened again, the tip of the thumb is hung on the insertion portion 22 at the position of the notch portion 50 for finger hooking, and the insertion portion 22 is moved in the longitudinal direction of the trunk portion 10. The lid 21 can be opened by pushing it outward.

Next, a method for folding the packaging box according to the first embodiment of the present invention will be described.
The packaging box which concerns on 1st embodiment of this invention can be made into the state which can be folded and discarded in the following procedures.
(1) First, as shown in FIG. 3, the tip of the thumb is hung on the insertion part 22 at the position of the notch part 50 for the finger hook formed on the other end of the rear plate 12, and the insertion part 22 is connected to the body part. 10 is pushed outward toward the longitudinal direction, and the lid 21 is opened.
(2) Next, a thumb is applied to the pressing part 44 formed at one end of the rear side plate 12, and the tip of the thumb is pressed along the breaking line 45 for pressing, and the pressing part 44 is pushed into the body part 10.
(3) From this state, when the outer lid plate 40 is pushed out toward the outside in the longitudinal direction of the trunk portion 10 with the thumb in a state where the pressing part 44 is pushed into the trunk portion 10, the outer lid plate 40 is formed. The outer lid plate 40 is separated from the rear plate 12 in a state in which the incision breaking line 43 is broken and separated and the pair of outer lid cut portions 42 remains on the rear plate 12.
(4) Thereafter, by further spreading the outer lid plate 40 toward the outside in the longitudinal direction of the body portion 10, the adhered portion between the inner lid plate 30 and the left and right side plate folding pieces 13a, 14a is peeled off. As shown in FIG. 3, the outer lid plate 40 is completely separated from the rear side plate 12 while being adhered to the inner lid plate 30. When the inner lid plate 30 and the left and right side plate folding pieces 13a, 14a are not attached, they can be easily opened with less force.
(5) When the outer cover plate 40 is separated from the rear plate 12, the pair of remaining outer cover portions 42 remain on the rear plate 12, so that the tip of the inner cover plate 30 adhered to the outer cover plate 40. Although both sides of the inner part abut against the pair of remaining outer lid parts 42 and try to resist the force that separates the outer lid plate 40 from the rear side plate 12, along the easy crease line 33 on both sides of the front end portion of the inner lid plate 30. Since the easily bent piece 32 is formed, the easily bent piece 32 of the inner cover plate 30 is also bent along with the movement of the outer cover plate 40 to the outside in the longitudinal direction. The outer lid plate 40 can be smoothly separated from the rear side plate 12 without resisting the opening operation of the outer lid plate 40.
(6) Finally, as shown in FIG. 4, the body 10 can be folded into a flat state so that the packaging box can be discarded.

Next, the packaging box which concerns on 2nd embodiment of this invention is demonstrated based on FIGS.
The packaging box according to the second embodiment of the present invention is basically composed of the same members as the packaging box according to the first embodiment shown in FIGS. The rear side plate (side plate) 12 is formed in a substantially square shape, and the shapes of the inner lid plate 30, the outer lid plate 40, and the open / close lid plates (21, 22, 23, 24) are set accordingly.
Then, the packaging box according to the second embodiment of the present invention is a sheet material such as cardboard or paperboard developed as shown in FIG. The inner lid plate 30 and the outer lid plate 40 formed so as to close the entire surface of the opening portion of the trunk portion 10 after being bent along the lines 27, 31, and 41 are formed by attaching the outer lid plate 40 to the inner lid plate 30. The portion of the outer lid plate 40 excluding the portion where the incision break line 43 is formed, that is, the portion of the outer lid plate 40 on the tip side of the portion where the break line 43 for incision is formed is overlapped. It is assembled by sticking to the corresponding part.
Moreover, similarly to the packaging box according to the first embodiment, the inner lid plate 30 may or may not be attached to the left and right side plate folding pieces 13a and 14a. However, the strength of the packaging box is further improved, so that even heavy items can be stored. Moreover, when not sticking, it can be opened with a small force.

When the packaging box according to the second embodiment is also used after being assembled as shown in FIG. 6, the zipper part 23 is broken along the breaking line 25 for opening, and the lid part 21 is cut off. After opening the insertion part 22 from the body part 10 and taking out the article stored in the packaging box, the insertion part 22 is inserted into the body part 10 as necessary, and the lid part 21 The opening can be re-covered and used repeatedly.
Further, when the packaging box is discarded after the articles stored in the packaging box are taken out, as shown in FIG. 7, the pressing part 44 is pressed with the thumb, and the pressing part along the breaking line 45 for pressing. 44 is pushed into the inside of the body portion 10, and the outer cover plate 40 is incised by pulling the outer cover plate 40 toward the outside in the longitudinal direction of the body portion 10 while hooking the thumb on the cut-off portion fold 46. The outer lid plate 40 is released from the opening of the body portion 10 together with the inner lid plate 30 that is broken and cut along the fracture line 43 and adhered to the outer lid plate 40, and further shown in FIG. In this way, the body 10 can be folded flat and discarded.
In the packaging box according to the second embodiment of the present invention, when the outer lid plate 40 is broken along the breaking line 43 for incision, the inner lid plate 30 has the breaking for breaking the outer lid plate 40. Since the easy folding curve 33 is formed at a portion that substantially overlaps the line 43, when the outer lid plate 40 is separated from the rear side plate 12, the easy folding piece of the inner lid plate 30 is formed on the remaining portion 42 of the outer lid plate 40. Even if 32 touches, it is constituted so that the easy folding piece 32 bends along the easy folding curve 33 and can be opened smoothly without resistance.
Further, similarly to the packaging box according to the first embodiment, when the outer lid plate 40 is stacked on the inner lid plate 30 and attached, the inner lid plate 30 and the outer lid plate 40 are provided at the opening of the trunk portion 10. The gap between the outer lid plate 40 and the opening of the body portion 10 is closed by easy-folding pieces 32 formed on both sides of the distal end portion of the inner lid plate 30. Therefore, it is configured so that foreign matter does not enter from the gap between the outer lid plate 40 and the opening of the trunk portion 10.
Since the assembly method, usage method, and disposal method of the packaging box according to the second embodiment of the present invention are the same as those of the packaging box according to the first embodiment, description thereof is omitted.

It is an expanded view of the sheet | seat material which forms the packaging box which concerns on 1st embodiment. It is a perspective view of the packaging box of the state which bent the sheet | seat material shown in FIG. 1, and was assembled. FIG. 3 is a perspective view showing a state before the pair of lid plates are opened and folded flat after using the packaging box shown in FIG. 2. It is a perspective view which shows the state which folded the packaging box of the state which opened the pair of cover plate shown in FIG. 3 in flat shape so that it can be discarded. It is an expanded view of the sheet | seat material which forms the packaging box which concerns on 2nd embodiment. It is a perspective view of the packaging box of the state which bent the sheet | seat material shown in FIG. 5, and was assembled. FIG. 7 is a perspective view showing a state before the pair of lid plates are opened and folded flat after using the packaging box shown in FIG. 6. It is a perspective view which shows the state which folded the packaging box of the state which open | released the pair of cover plate shown in FIG. 7 so that it could be discarded.

Explanation of symbols

10 trunk 11 front side plate (side plate)
12 Rear side plate (side plate)
13 Right side plate (side plate)
13a Right side plate folding piece 14 Left side plate (side plate)
14a Left side plate folding piece 15 Adhering plate 16 Trunk part fold 17 Side plate folding piece fold 21 Lid part 22 Insertion part 23 Zipper part 24 Adhesion part 25 Breaking line for opening 26 Lid part fold 27 Folding part fold 30 Inner cover plate 31 Inner cover plate fold 32 Easy folding piece 33 Easy folding curve 40 Outer cover plate 40a Side edge 41 Outer cover plate fold 42 Outer cover breakage part 43 Cutting break line 44 Pressing part 45 Pushing part breaking Line 46 Cut-off part fold 50 Finger notch

Claims (8)

A pair of lid plates formed to be connected to the side plates 11 and 12 so as to close a barrel portion 10 formed from four side plates 11 to 14 into a rectangular tube shape and one side opening of the barrel portion 10. 30, 40, in the packaging box in which the side plate 12 and the lid plate 40 are formed with a breaking line continuous from the side plate 12 to the lid plate 40,
The pair of lid plates are attached to the side plate 12 by overlapping the inner lid plate 30 formed continuously with the side plate 11 via an inner lid plate fold line 31, and the inner lid plate 30. It consists of an outer lid plate 40 formed continuously by way of a plate fold 41,
The breaking line is formed on the outer cover plate 40 and the breaking line 45 for pressing and formed to protrude toward the side plate 12 so as to define the pressing portion 44 that is bent along the outer cover plate fold line 41. And the incision break line 43 formed so as to reach each side edge 40a of the outer lid plate 40 continuously from both ends of the push cut break line 45,
In addition, the inner lid plate 30 is formed with an easy-folding curve 33 at a portion that substantially overlaps the incision breaking line 43 in a state where the inner lid plate 30 is overlapped with the outer lid plate 40. .   The packaging box according to claim 1, wherein the inner lid plate (30) and the outer lid plate (40) are each sized to close substantially the entire surface of the opening of the body (10).   The packaging box according to claim 1, wherein the easy folding curve 33 is formed so as to be ruptureable.   The packaging box according to any one of claims 1 to 3, wherein the breaking line 43 for incision is formed at a portion that does not interfere with a sticking portion between the outer lid plate 40 and the inner lid plate 30. A body 10 formed in a square cylinder shape from the four side plates 11 to 14 and a lid formed continuously with the side plates 11 and / or 12 so as to close both side openings of the body 10. In a packaging box consisting of plates,
Of the lid plates, one of the lid plates is attached to the side plate 11 in an overlapping manner with the inner lid plate 30 formed by being connected to the side plate 11 via an inner lid plate fold line 31, An outer cover plate 40 formed continuously with the side plate 12 via an outer cover plate fold line 41;
The side plate 12 is formed with a cut-off line 45 for pressing so as to protrude toward the side plate 12 so as to define a pressing portion 44 that is bent along the outer cover plate fold line 41, and the outer cover plate 40. Is formed with a breaking line 43 for incision so as to reach each side edge 40a of the outer cover plate 40 continuously from both ends of the breaking line 45 for pressing.
Further, the inner lid plate 30 is formed with an easy folding curve 33 at a portion substantially overlapping with the incision breaking line 43 in a state where the inner lid plate 30 is stuck on the outer lid plate 40.
On the other hand, among the lid plates, the other lid plate is formed by sequentially connecting a lid portion 21, a plug-in portion 22, a zipper portion 23, and a sticking portion 24 that can be re-covered. Packaging box to do.   The packaging box according to claim 5, wherein the inner lid plate 30 and the outer lid plate 40 are each sized to close substantially the entire surface of the opening of the trunk portion 10.   The packaging box according to claim 5 or 6, wherein the easy folding curve 33 is formed so as to be ruptureable. The packaging box according to any one of claims 5 to 7, wherein the incision breaking line 43 is formed in a portion that does not interfere with a sticking portion between the outer lid plate 40 and the inner lid plate 30.

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