JP2003026235A - Bag-in-box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag-in-box capable of simply setting a pouring port of a liquid-containing bag to be in a usable state. SOLUTION: In the bag-in-box, flaps 4 and 5 of an outer box 1 storing a liquid-containing bag 12 are superposed on one another to be sealed together, and a fitting part 8 is provided at edge side portions of the paired flaps 4, and cutting part 10 is provided at one of the other flaps 5, respectively. When the liquid is used, the cutting part 10 is cut off to pull out a pouring port 13 of the liquid-containing bag 12 from the outer box 1, and the pouring port 13 thus pulled out is fitted into the fitting part 8 to be held thereat. Diagonal fold lines 9 extending from the side edge on the side of the fitting part 8 of the flaps 4 to the edges thereof are formed in the paired flaps 4 having the fitting part 8. The outer box 1 can be sealed under the condition that the pouring port 13 is fitted into the fitting part 8 in advance, and only by cutting off the cutting part 10, the pouring port 13 can be set in a usable state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for drawing out a spout of a bag-in-box in which a liquid bag is housed in an outer box.

[0002]

2. Description of the Related Art Conventionally, commercial liquid seasonings, detergents, etc. are packed in a liquid-filled bag having a spout, the liquid-filled bag is stored in an outer box, and flaps of the outer box are overlapped and sealed. Bag-in-box is used.

The flap of the outer box is provided with a cut-out portion surrounded by perforations and a fitting portion cut in advance,
When using the liquid in stores, cut off the cutout part,
Pull out the spout of the liquid bag from the outer box and fit it into the fitting part to fix it.

[0004]

However, in such a bag-in-box, when the spout is set to a use state, it has to be pulled out by hand from a small opening, and there is a problem that the work is troublesome.

Therefore, it is an object of the present invention to provide a bag-in-box in which the spout of a liquid-filled bag can be easily set in use.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is designed so that flaps of an outer box for containing a liquid-filled bag are superposed and sealed, and a fitting portion is provided at an end side of a pair of flaps. A cut-in portion is provided on each of the other flaps, and when the liquid is used, the cut-out portion is cut off to draw out the spout of the liquid-filled bag from the outer box, and the bag-in-box which is fitted and held in the fitting portion has the fitting portion. The pair of flaps is formed with a diagonal line extending from the side edge on the fitting portion side to the end edge.

In such a bag-in-box, when a pair of flaps is bent along a diagonal fold line and is overlapped with the inside of the other pair of flaps, the spout can be sealed while the fitting part is fitted into the fitting part in advance. At times, it is possible to pull out the spout and set it in use by simply cutting off the cutout portion.

Further, when a cut line extending from the edge to the base is provided in the middle part of the pair of flaps and the flap is overlapped with the outer side of the other pair of flaps, the outer flap is cut along the cut line and the flap is cut. It is possible to easily fit the spout into the fitting portion while bending the part along the oblique line.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, in the blank of the outer box 1, a pair of side plates 2 and end plates 3 are alternately arranged in series, and flaps 4 and 5 are provided on the upper and lower edges of the side plates 2 and end plates 3, respectively. It is lined up. A passage 6 is continuously provided on the outer edge of one end plate 3, and a handle hole 7 is provided in each side plate 2.

Above the blank, a pair of flaps 4 are provided with semi-circular fitting portions 8 by cutting the side portions of the tip edges, and the diagonal folding lines extend from the side edges on the fitting portion 8 side to the tip edges. 9 is formed.

Further, the flap 5 located between the flaps 4 is provided with a circular cutout portion 10 surrounded by perforations, and the outer peripheral portion of the cutout portion 10 has a pushing portion 1 for inserting a finger.
1 is provided.

To assemble the outer box 1 from such a blank, the pair of side plates 2 and end plates 3 are bent into a rectangular tube shape, and the passage 6 is attached to the opposite side plate 2 to form a peripheral wall.
The pair of lower flaps 4 and the other pair of flaps 5 are attached to each other, and the bottom surface is closed.

Then, as shown in FIG. 2, the liquid-filled bag 12 is housed in the outer box 1, and the liquid-filled bag 12 is placed on the top side of the outer box 1.
When the spout 13 is fitted into the fitting portion 8 of the pair of flaps 4 and the peripheral edge of the fitting portion 8 is pressed by the flange 14 of the spout 13, the pair of flaps 4 are mountain-folded along the fold line 9.

Therefore, in the above bag-in-box,
As shown in FIG. 3, while the spout 13 is fitted in the fitting portion 8 in advance, the flap 5 of the other pair can be closed and sealed without lowering the packaging strength, and the adhesive tape 15 for sealing is used. The cutout portion 10 is not covered with.

On the outer side of the oblique line 9, the inner flap 4 and the outer flap 5 may be bonded together with a hot melt adhesive for sealing.

When the liquid in the liquid bag 12 is used, a finger is put into the pushing portion 11 and the cut-out portion 10 is cut off. As shown in FIG. It can be pulled out and set for use.

At this time, if the outer case 1 is used while lying down sideways, the spout 13 which has been slightly retracted is pushed out by the hydraulic pressure and comes out, so that even if the spout 13 is not fixed, it is particularly useful in use. There is no problem.

Next, a second embodiment of the present invention will be described based on FIGS. 5 to 8 focusing on the differences from the first embodiment.

In the blank of the outer case 1, as shown in FIG. 5, a zipper-shaped cut line 16 extending from the leading edge to the base end is formed in the middle portion of the pair of upper flaps 4, and the fitting portion 8 is formed.
The side of is straight.

When the liquid-filled bag 12 is housed and sealed in the outer box 1 assembled from this blank, as shown in FIG.
Put a pair of flaps 4 on the outside of the other pair of flaps 5,
Stick with hot melt adhesive.

When using the liquid in the liquid bag 12, as shown in FIG.
Cut along 6 and peel off the fitting portion 8 side from the inner flap 5 to open it, and the cutout portion 1 of the exposed inner flap 5
Cut off 0.

Next, as shown in FIG. 8, the spout 13 is pulled out from the cutout 10, and the outer flap 4 opened earlier is folded along the diagonal fold line 9 while the spout 13 is fitted.
Then, when the flap 4 is closed, the flange 14 engages with the peripheral edge of the fitting portion 8 and the spout 13 is fixed.

At this time, since the side of the fitting portion 8 is linear, the spout 13 can be slid into the fitting portion 8 for easy fitting.

[0025]

As described above, in the bag-in-box according to the present invention, the flap having the fitting portion is formed with the oblique folding line. Therefore, when the flap is placed inside, the spout is fitted into the fitting portion in advance. It can be sealed in the state, and when using a liquid, it is possible to pull out the spout and set it in the used state by simply cutting off the cutout portion.

Even when the flap having the fitting portion is provided outside, the spout can be easily fitted into the fitting portion while bending the flap along the oblique line.

[Brief description of drawings]

FIG. 1 is a diagram showing a blank of an outer box of the first embodiment.

FIG. 2 is a perspective view showing a packing process of the above liquid-filled bag.

FIG. 3 is a perspective view showing a packed state of the same.

FIG. 4 is a perspective view showing a usage state of the same as above.

FIG. 5 is a view showing a blank of an outer box of the second embodiment.

FIG. 6 is a perspective view showing a packed state of the liquid-filled bag of the same.

FIG. 7 is a perspective view showing the unpacking process of the same.

FIG. 8 is a perspective view showing a usage state of the above.

[Explanation of symbols]

1 outer box 2 side plates 3 end plates 4,5 flaps 8 Fitting part 9 diagonal line 10 Cutout 12 liquid bag 13 outlet 14 Flange 15 Adhesive tape 16 score lines

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3E060 AA03 AB05 BA03 BB07 CE04                       CE07 CE14 CE22 CF05 DA17                       EA06 EA13 EA14                 3E067 AA03 AB28 AB81 BA06C                       BA11B BB02C BB14B EA05                       EA24 EB03 EB29 EE41 FA04                       FB15 FC01

Claims (3)

[Claims] 1. A flap 4, 5 of an outer box 1 for accommodating a liquid-filled bag 12 is superposed and sealed, a fitting portion 8 is provided at an end side of a pair of flaps 4, and a cutout portion 10 is provided at another flap 5. When the liquid is used, the cutout portion 10 is cut off and the spout 13 of the liquid bag 12 is pulled out from the outer box 1, and the fitting portion 8 is provided.
In the bag-in-box which is fitted and held in the bag-in box, a pair of flaps 4 having the fitting portion 8 is formed with a diagonal fold line 9 extending from a side edge on the fitting portion 8 side to an end edge. box. 2. The spout 13 is fitted into the fitting portion 8 in advance,
The bag-in-box according to claim 1, wherein the pair of flaps 4 is bent along a diagonal fold line 9 and is overlapped and sealed inside the other pair of flaps 5. 3. A cut line 16 extending from an edge to a base portion is provided at an intermediate portion of the pair of flaps 4, and the flap 4 is overlapped and sealed on the outside of the other pair of flaps 5. Bag-in-box as described in.