JP2015202883A - bag-in-box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag-in-box in which an internal bag is not torn during packaging and an outer box after packaging is hardly deformed.SOLUTION: A bag-in-box comprises: an outer box 10; and an internal bag which is stored from an opened one surface of the outer box. The outer box comprises: a pair of front and rear first side surface plates 101, 102; a pair of left and right second side surface plates 103, 104; and inner flaps 105, 106 extending from surfaces of the pair of first side surface plates respectively. When the respective inner flaps are folded inward, gaps a, b are formed between the respective inner flaps and the other ones of the pair of the second side surface plates, by making width of the inner flaps narrow. The gaps are disposed on two positions positioned on diagonal positions. On two positions positioned on the other diagonals, the inner flaps contact the other ones of the pair of the side surface plates.

Description

  The present invention relates to a bag-in-box.

  A bag-in-box type with an internal bag made of resin film in an outer box such as a cardboard box or cardboard box is a container for filling beverages such as liquor, juice, wine, milk, and mineral water. It is widely used and recently attracts attention as a container filled with liquid detergent or powder.

  This is because a relatively large amount of liquid or powder can be filled even though the container is light, and the container itself can be stored and transported in a folded state. This is because the merit in terms of usability is great because it is not bulky compared to cans.

  In such a bag-in-box, storing and packing the inner bag in the outer box is performed by dropping the inner bag filled with the contents into the outer box that has been boxed in an open state. (For example, patent document 1).

  It is common to pack an inner flap and an outer flap on the opened upper end of the outer box, with the inner flap tilted inward and the outer flap tilted over the inner flap (for example, Patent Document 2).

  At the time of packing, there is a problem that the inner bag is bitten by the inner flap and the side plate, the inner bag is damaged, a pinhole is generated and the bag is broken. If the inner flap is eliminated in order to prevent the inner flap and the side plate from biting, the shape retention of the outer box after packing may be reduced, and the outer box may be deformed.

  Known documents are shown below.

JP 2012-86882 A JP-A-9-99976

  The present invention has been made in view of the circumstances as described above, and provides a bag-in-box that is less likely to deform an outer packaging box after packing without the risk of breaking an inner bag such as a pinhole during packing. This is the issue.

The present invention has been made in view of the related problems, and the invention of claim 1 is a bag-in-box comprising an exterior box and an interior bag accommodated from one open surface of the exterior box.
The outer box has a pair of first side plates on the front and rear sides and a pair of second side plates on the left and right sides, and an inner flap extends on the one side of the pair of side plates of the outer box, Two locations where the width of the inner flap is narrowed so that a gap is created between the inner flap and the other pair of side plates when the inner flap is tilted inward, and the gap is located diagonally The bag-in-box is characterized in that the inner flap is provided so as to be in contact with the other pair of the side plates at two locations located at other diagonal positions.

  According to a second aspect of the present invention, of the corners formed by the first side plate and the second side plate, a corner portion where the gap is located is chamfered to provide a chamfered side plate. The bag-in-box according to claim 1, wherein the bag-in-box is provided.

  When the bag-in-box of the present invention is packed, the inner bag is not broken by a pinhole or the like, and the outer box after packing is not easily deformed.

It is explanatory drawing which showed typically the state by which the upper part of the exterior | packing box of 1st Embodiment of the bag-in-box of this invention was open | released with the perspective view. It is explanatory drawing which showed typically the interior bag of 1st Embodiment of the bag-in-box of this invention on the side surface. It is an expanded view of the exterior box of 1st Embodiment of the bag-in-box of this invention. It is explanatory drawing which showed typically the state by which the upper part of the exterior | packing box of 2nd Embodiment of the bag-in-box of this invention was open | released with the perspective view. It is explanatory drawing which showed the interior bag of 2nd Embodiment of the bag in box of this invention typically on the side. It is an expanded view of the exterior box of 2nd Embodiment of the bag in box of this invention.

<First Embodiment>
Hereinafter, a first embodiment for carrying out the present invention will be described.
FIG. 1 is an explanatory view schematically showing a state in which the upper part of the first embodiment of the bag-in-box of the present invention is opened, and FIG. 2 is a first embodiment of the bag-in-box of the present invention. It is explanatory drawing which showed typically the interior bag of the side by the side.

  The bag-in-box 1 according to the first embodiment includes an exterior box 10 and an interior bag 20. FIG. 1 shows an exterior box 10 with an upper part opened. The exterior box 10 has a pair of first side plates 101 and 102 on the front and rear, and a pair of second side plates 103 and 104 on the left and right.

  Inner flaps 105 and 106 are extended from the upper ends of the first side plates 101 and 102 on the opened upper surface side, respectively. When the inner flaps 105 and 106 are tilted inward, gaps a and b are formed between the inner flap 105 and the second side plate 103 and between the inner flap 106 and the second side plate 104, respectively. In addition, the widths of the inner flaps 105 and 106 are narrower than the width of the first side plates 101 and 102.

  In this state, the inner flap 105 and the second side plate 104 are provided so as to be substantially in contact with each other, and the inner flap 106 and the second side plate 103 are provided so as to be in substantially contact with each other. In this way, the gaps a and b are provided so as to be located diagonally on the upper surface, and in the other diagonals, the inner flap 105 and the second side plate 104 and the inner flap 106 and the second side plate are provided. 103 is provided so as to be substantially in contact with each other.

  Further, outer flaps 107 and 108 are provided at the upper ends of the second side plates 103 and 104. After the inner flaps 105 and 106 are tilted inward, the outer flaps 107 and 108 are tilted so as to overlap with each other and sealed with an adhesive or tape to pack the bag-in-box. The first side face plate 101 is provided with a planned opening X for taking out the cap of the interior bag 20 by a broken line.

  The interior bag 20 is made by superposing a front film 201 and a back film 202 made of a soft packaging material, sealing a peripheral edge portion, and providing a peripheral seal portion 203. Further, the front side film 201 is provided with a plug 204 so as to penetrate the inside of the contents storage portion, and the contents can be taken out from the plug 204.

  The front film 201 and the back film 202 are overlapped with each other without bonding a plurality of films. If they are overlapped without being bonded in this way, a flexible bag is formed and it is difficult to break the bag against an impact.

  FIG. 3 is a developed view of the outer box of the first embodiment of the bag-in-box of the present invention.

  The material of the outer box 10 is made of corrugated paper or cardboard. A resin layer or the like may be provided on the front surface or the back surface. Further, it may be made of a rigid material other than paper. Then, the blank 11 as shown in the development view of FIG. 3 can be folded along a crease indicated by an alternate long and short dash line, and can be assembled with an adhesive such as hot melt as necessary.

  In the blank 11, a second side plate 104, a first side plate 101, a second side plate 103, and a first side plate 102 are connected from the left in the upper and lower center, and an adhesive piece 113 is provided at the right end. .

  The first side plate 101 is provided with a planned opening portion X with a broken line so that the portion of the cap 204 of the package bag 20 accommodated can be pulled out without disassembling the outer packaging 10. Yes.

  Inner flaps 105 and 106 are provided at the upper ends of the first side plates 101 and 102, respectively. The width of the inner flaps 105 and 106 is narrower than the width of the first side plates 101 and 102, and When the box is made, the gaps a and b can be formed between the inner flap 105 and the second side plate 103 and between the inner flap 106 and the second side plate 104, respectively. ing. Outer flaps 107 and 108 are provided at the upper ends of the second side plates 103 and 104, respectively.

  Bottom inner flaps 109 and 110 are provided at the lower ends of the first side plates 101 and 102, respectively. Further, bottom outer flaps 111 and 112 are provided at the upper ends of the second side plates 103 and 104, respectively.

  In order to form the outer box 10 from the blank 11, the second side plate 104, the first side plate 101, the second side plate 103, and the first side plate 102 are folded into a rectangular tube shape, The front surface is adhered to the back surface of the second side plate 104 using an adhesive or the like.

  Next, the bottom inner flaps 109 and 110 are folded inward, and the bottom outer flaps 111 and 112 are folded inward. At this time, the overlapping portion of the bottom-side outer flap 111 and the bottom-side outer flap 112 is attached using an adhesive or the like.

  As a result, the outer box 10 with the upper part opened as shown in FIG. 1 is boxed. In the exterior box 10, the interior bag 20 filled with the contents is put and stored so as to be dropped from the opened upper part by a packing device.

  Then, the inner flaps 105 and 106 are folded inward. At this time, the portion of the interior bag 20 that protrudes above the side plate is pushed down by the inner flaps 105 and 106, and the gaps a and b where the inner flaps 105 and 106 do not exist are placed on the interior bag 20. The part that comes out comes. For this reason, the inner bag 20 is not easily sandwiched between the inner flap 105 and the second side plate 104, and between the inner flap 106 and the second side plate 103, and the inner bag 20 may be pinched by a pinhole or the like. There is no.

  Then, the outer flaps 107 and 108 are folded so as to be tilted inward. At this time, the overlapping portion of the outer flap 107 and the outer flap 108 is attached and packaged using an adhesive or the like. In this way, the inner flap 105 comes into contact with the second side plate 104, and the angle between the first side plate 101 and the second side plate 104 is not crushed. Further, the inner flap 106 comes into contact with the second side plate 103 so that the angle between the first side plate 102 and the second side plate 103 does not collapse.

  Thus, since the diagonals of the upper surface are not crushed, the outer box 10 is not easily crushed. Moreover, since the bottom part of the exterior box has the same shape and does not collapse even at the bottom part, the upper end part and the bottom part of the exterior box 10 are not easily collapsed. For this reason, the outer packaging box 10 after packing is hard to deform | transform.

<Second Embodiment>
The second embodiment for carrying out the present invention will be described below.
FIG. 4 is an explanatory view schematically showing a perspective view of a state in which the upper part of the second embodiment of the bag-in-box of the present invention is opened, and FIG. 2 is a second embodiment of the bag-in-box of the present invention. FIG.

  The bag-in-box 2 according to the second embodiment includes an exterior box 30 and an interior bag 40. FIG. 4 shows the exterior box 30 with its upper part opened. The exterior box 30 has a pair of first side plates 301 and 302 on the front and rear and a pair of second side plates 303 and 304 on the left and right.

  Further, the corner formed by the first side plate 301 and the second side plate 303 is chamfered to provide a chamfered side plate 305, and is formed by the first side plate 302 and the second side plate 304. The corners are also chamfered and chamfered side plates 306 are provided.

  Inner flaps 307 and 308 extend from the upper ends of the first side plates 301 and 302 on the opened upper surface side, respectively. The widths of the inner flaps 307 and 308 are substantially the same as the widths of the first side plates 301 and 302. When the inner flaps 307 and 308 are tilted inward, the chamfered side plates 305 and 306 are provided. , Gaps c and d are formed between the inner flap 307 and the second side plate 303 and between the inner flap 308 and the second side plate 304, respectively.

  In this state, the inner flap 307 and the second side plate 304 are provided so as to substantially contact each other, and the inner flap 308 and the second side plate 303 are provided so as to substantially contact each other. As described above, the gaps c and d are provided so as to be located on the diagonal upper surfaces of the chamfered side plates 305 and 306, and in the other diagonals, the inner flap 307 and the second side plate 304 are Further, the inner flap 308 and the second side plate 303 are provided so as to be substantially in contact with each other.

  Further, outer flaps 309 and 310 are provided at the upper ends of the second side plates 303 and 304. After the inner flaps 307 and 308 are tilted inward, the outer flaps 309 and 310 are tilted so as to overlap with each other and sealed with an adhesive or tape to pack the bag-in-box 2. The first side plate 301 is provided with a planned opening Y for taking out the cap of the interior bag 40 by a broken line.

  The inner bag 40 is made by overlapping a front film 401 and a back film 402 made of a soft packaging material, sealing a peripheral edge portion, and providing a peripheral seal portion 403. Further, the front film 401 is provided with a plug 404 so as to penetrate the inside of the contents storage portion, and the contents can be taken out from the plug 404. Note that the stopper 404 is a stopper with a cock.

  Each of the front film 401 and the back film 402 is overlapped without bonding a plurality of films. If they are overlapped without being bonded in this way, a flexible bag is formed and it is difficult to break the bag against an impact.

  FIG. 6 is a development view of the outer box of the second embodiment of the bag-in-box of the present invention.

  The material of the outer box 30 is made of corrugated paper or cardboard. A resin layer may be provided on the front surface or the back surface. Further, it may be made of a rigid material other than paper. Then, the blank 31 as shown in the developed view of FIG. 6 can be folded along a crease indicated by a one-dot chain line, and can be bonded and assembled with an adhesive such as hot melt as necessary.

  In the blank 31, a second side plate 304, a first side plate 301, a chamfered side plate 305, a second side plate 303, a first side plate 302, and a chamfered side plate 306 are connected in series at the top and bottom. An adhesive strip 315 is provided at the right end. The first side plate 301 is provided with a predetermined opening Y with a broken line so that the portion of the cap 404 of the package bag 40 accommodated can be pulled out without disassembling the outer packaging 30. Yes.

  Inner flaps 307 and 309 are provided at the upper ends of the first side plates 301 and 302, respectively. The widths of the inner flaps 307 and 309 are substantially the same as the widths of the first side plates 301 and 302. .

  When the box is made, gaps are provided between the inner flap 307 and the second side plate 303 and between the inner flap 308 and the second side plate 304 by the amount of the chamfered side plates 305 and 306, respectively. c and d can be performed. Outer flaps 309 and 310 are provided at the upper ends of the second side plates 303 and 304, respectively.

  Bottom side inner flaps 311 and 312 are provided at the lower ends of the first side plates 301 and 302, respectively. Further, bottom outer flaps 313 and 314 are provided at the lower ends of the second side plates 303 and 304, respectively.

  In order to box the exterior box 30 from the blank 31, the second side plate 304, the first side plate 301, the chamfered side plate 305, the second side plate 303, the first side plate 302, and the chamfered side plate 306 are provided. The second side plate 304 and the first side plate 301 are folded at right angles, and the second side plate 303 and the first side plate 302 are folded at right angles so as to form a rectangular tube. The surface is stuck to the back surface of the second side plate 304 using an adhesive or the like.

  Next, the bottom inner flaps 311 and 312 are folded inward, and the bottom outer flaps 313 and 314 are folded inward. At this time, the overlapping portion of the bottom side outer flap 313 and the bottom side outer flap 314 is attached using an adhesive or the like.

  As a result, the outer box 30 with the upper part opened as shown in FIG. 4 is boxed. The interior bag 40 filled with the contents is put into the outer box 30 by a packing device so as to be dropped from the opened upper portion and stored.

  Then, the inner flaps 307 and 308 are folded so as to be tilted inward. At this time, the portion of the interior bag 40 that protrudes above the side plate is pushed down by the inner flaps 307 and 308, and in the gaps c and d where the inner flaps 307 and 308 are not present, The part that comes out comes. For this reason, the inner bag 40 is not easily sandwiched between the inner flap 307 and the second side plate 314, and between the inner flap 308 and the second side plate 303, and the inner bag 40 may be pinched by a pinhole or the like. There is no.

  Then, the outer flaps 309 and 310 are folded so as to be tilted inward. At this time, the overlapping portion of the outer flap 309 and the outer flap 310 is attached and packaged using an adhesive or the like. In this way, the inner flap 307 comes into contact with the second side plate 304, and the angle between the first side plate 301 and the second side plate 304 is not crushed. Further, the inner flap 308 comes into contact with the second side plate 303 so that the angle between the first side plate 302 and the second side plate 303 does not collapse.

  Thus, since the diagonals of the upper surface are not crushed, the outer box 30 is less likely to be crushed. Moreover, since the bottom part of the exterior box has the same shape and does not collapse even at the bottom part, the upper end part and the bottom part of the exterior box 30 are not easily collapsed. For this reason, the outer packaging box 30 after packing is hard to deform | transform.

  In addition to the first side plates 301 and 302 and the second side plates 303 and 304, chamfered side plates 305 and 306 are provided so that the cross section is a hexagon. When a display such as printing is provided on the display, the display changes from various angles, so that the advertising function can be improved and differentiated.

  As described above, the back-in-box of the present invention, when storing and packing an interior bag filled with contents, sandwiches the interior bag between the inner flap and the side plate and breaks the interior bag by a pinhole or the like. There is nothing to do. Moreover, the outer packaging box after packing is not easily deformed. This prevents the packed back-in box from buckling and being destroyed.

1, 2 ... Bag-in-box 10, 30 ... Exterior box 11, 31 ... Blank 101, 102, 301, 302 ... First side plate 103, 104, 303, 304 ... Second Side plates 105, 106, 307, 308 ... inner flaps 107, 108, 309, 310 ... outer flaps 109, 110, 311, 312 ... bottom inner flaps 111, 112, 313, 314 ... Bottom side outer flaps 305, 306 ... chamfered side plates a, b, c, d ... gaps X, Y ... opening planned portions 20, 40 ... inner bag 201, 401 ... front side film 202, 402 ... back side films 203, 403 ... peripheral seals 204, 404 ... plugs

Claims (2)

In a bag-in-box consisting of an exterior box and an interior bag stored from one open surface of the exterior box,
The outer box has a pair of first side plates on the front and rear sides and a pair of second side plates on the left and right sides, and an inner flap extends on the one side of the pair of side plates of the outer box, Two locations where the width of the inner flap is narrowed so that a gap is created between the inner flap and the other pair of side plates when the inner flap is tilted inward, and the gap is located diagonally The bag-in-box is characterized in that the inner flap is provided so as to be in contact with the other pair of side plates at the two other diagonal positions.   2. The chamfered side plate is provided by chamfering a corner portion where the gap is located among corner portions formed by the first side plate and the second side plate. The bag-in-box as described.

Images