JPH08268471A - Bag in box - Google Patents

Abstract

PURPOSE: To provide a square-shaped inner bag made of flexible materials, which is contained in an assembly type corrugated board box, and allow the inner bag to be easily taken out of the outer box after use by sticking the inner bag to the corrugated board box at the four corners of upper and lower openings of the inner face thereof. CONSTITUTION: In making a bag in a box, which contains high viscous foodstuffs such as bean paste and curry paste, a corrugated board box (outer box) has side pieces 11a..., bottom pieces 11b, 11b... and cover pieces 11c... provided connectively to one another and, on the other hand, an inner bag is made of heat-sealable and flexible materials of various kinds. A member 11' of the outer box in a developed state is placed on a sheet 12' to be spot-stuck thereon at predetermined points (a) of the member 11'. Then, the member 11' is folded to stick a tongue piece 11a' on a rear face of the side piece 11a, and the inner bag is formed by heat-sealing edges of the sheet 12'. When the member is formed into a square shape by a box assembling machine, side ends of the inner bag stand at its bottom edges to cover the bottom faces of the peripheral walls because the four corners of the lower face of the peripheral walls of the outer box and the central parts of the top ends of the bottom pieces 11b'... are stuck thereon.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to miso, curry roux,
It relates to a bag-in-box that stores highly viscous materials such as liquid chocolate, paste-like adhesive, printing ink, etc. When using, it is easy to take out the contents with a spatula or spoon, and after use the bag (inner bag) It relates to the ones that are easy to remove.

[0002]

BACKGROUND OF THE INVENTION As shown in FIGS. 25 to 27, a bag-in-box B is a cardboard outer box (carton) 1.
It is a well-known product in which an inner bag 2 made of a flexible material capable of sheet sealing is built-in, and exhibits a product function with a protective function of a flexible package, a disposal process of a paper container, and a recycling surface.

As a device (invention) of this bag-in-box B, Japanese Utility Model Publication No. 4-7407 and Japanese Utility Model Publication No. 5-2 are used.
There is one described in Japanese Patent No. 4347 and the like. These are square-shaped ones in which the inner bag 2 is formed by bending a rectangular sheet and sealing the overlapping open line, and the member in the expanded state of the outer box 1 is vertically and horizontally required on the rectangular sheet. The above-mentioned sheet is projected and placed on the sheet, and the sheet is attached and the outer box 1 is attached to each side piece 1a ..., Bottom piece 1b ...
Are assembled together by bending with the sheet through folding curves (see Examples).

In this bag-in-box B,
To close the bottom face, as shown in FIGS. 25 to 27, first, one bottom piece 1b of the inner bag 2 is bent inward (FIGS. 25 to 26), and then, as shown in FIG.
B'is bent inward and the adhesive tape T is applied. That is, the bottom side 2 of the inner bag 2 is between the bottom pieces 1b and 1b '.
b is sandwiched.

[0005]

By the way, in the case of highly viscous products such as miso paste-like adhesives, the lid piece 1 is used.
c is opened to open the inner bag 2 (see FIG. 16), or the upper corner of the box B is cut off and opened (see FIG. 13, symbol C).
(See) and scoop out from the opening with a spatula. Finally, the spatula is inserted into the four corners of the bottom surface of the inner bag 2 to scrape the product out, the inner bag 2 is separated from the outer box 1 and removed, and the inner bag 2 is squeezed to take out the product.

When the inner bag 2 is removed, if the bottom of the inner bag 2 is sandwiched by the bottom pieces 1b and 1b 'of the outer box 1 as in the conventional case, the sticking portion of the bottom piece 1b is destroyed. It has to be done and the work is very cumbersome. In addition, at this time, in many conventional ones, the entire surface of the inner bag 2 is attached to the inner surface of the outer box 1, so that the removal of the inner bag 2 becomes more troublesome. Therefore, the inner bag 2 is not removed from the outer box 1 and the rectangular parallelepiped in which the product remains is discarded, and there is a problem in disposal.

Under the above circumstances, the first object of the present invention is to make it easy to remove the inner bag from the outer box and to make it possible to fold the outer box from which the inner bag is removed in a compact manner. The second object is to facilitate the assembling operation of the bag-in-box that solves the object.

[0008]

[Means for Solving the Problems] What has been accomplished in order to solve the above-mentioned first problem is the one according to claims 1 to 3, and the invention according to claim 1 is characterized in that the side piece is provided with a bending curve. To form a square peripheral wall by sticking the edges together.
A prefabricated cardboard box in which a lid piece bent inward at a right angle is connected to each side of the peripheral wall top opening opening, and a bottom piece bent inward at a right angle is connected to each side of the peripheral wall lower surface opening peripheral edge. In the above-mentioned well-known bag-in-box consisting of a box-shaped inner bag made of a flexible sheet-sealable material housed in the cardboard box, the inner bag of the inner bag is provided inside the cardboard box. All can be stored (the inner bag can be stored without being sandwiched by the bottom piece 1c), and the inner bag has the upper and lower openings 4 on the inner surface of the cardboard box.
The structure is attached in the corner.

According to a second aspect of the present invention, in the structure according to the first aspect, the inner bag is a rectangular sheet in which a rectangular sheet is bent and its overlapping open edge is sheet-sealed. While the member in the expanded state of the cardboard box is placed vertically and horizontally so as to project the sheet to a required width, the sheet and the expanded state member face the bottom piece in addition to the four corners. It is attached at the center of the tip of each of the two, and the above cardboard box is
Each side piece and lid piece are bent together with the above-mentioned sheet through a folding curve, and the bottom piece is bent through a folding curve so that the bottom piece to which the inner bag is attached is located inside the other bottom pieces. The structure was folded along with the seat.

According to a third aspect of the present invention, in the structure according to the first aspect, the inner bag is a flat bottom type having a flat bottom of the bottom shape of the cardboard box, and the flat bottom is flat-folded along the center line. The bag is a bag, and the flat inner bag is attached to the member in the expanded state of the cardboard box at the four corners so that the side edges and the lower edges thereof follow the folding curves of the member. Of.

The invention according to claim 4 for solving the second problem is the bag-in-box according to claim 1 or 3, wherein the inner bag is the inner surface of the cardboard box in an assembled state. It is made larger than the shape and pressed from both sides to make a square flat shape, and the flat inner bag is formed into a square flat shape by pressing both sides of the flat inner bag into the flat shape by pressing the cardboard box from both sides. The flat inner bag is placed so as to project outward from the folding curve when it is formed, and the flat inner bag is used as an opening of the cardboard box.
Affixing the corner and the folding curve above and below the opening in the vicinity thereof, and then bending the outside portion of the folding curve of the member in the inside through the folding curve and pasting the end line thereof, The upper and lower two corners of the outer portion and the inner bag, which are the openings of the cardboard box, are attached.

[0012]

In each of the inventions relating to the bag-in-box configured as described above, since the inner bag is attached to the upper and lower four corners of the inner surface of the cardboard box, the square shape of the inner bag is maintained even when moved. . Also, since the inner bag of the bottom piece is attached to the inside of the other bottom pieces, etc., the inner bag is completely contained within the inner surface of the cardboard box, so the inner bag can be easily peeled from the cardboard box. You can take it out. The outer box without the inner bag can be easily folded because there is no inner bag.

Further, by making the inner bag larger than the inner surface shape of the cardboard box and considering the arrangement position and the sticking position of the inner bag in the cardboard box, the inner bag is small when the flat cardboard box is assembled. As a result, the bent part of the cardboard box is not obstructed and the square shape can be obtained without fail.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment is shown in FIGS. 1 to 13, FIG. 1 is a plan view of a developed state member 11 ′ of a cardboard box (outer box) 11, and FIG. 2 is a rectangular sheet 12 ′ for an inner bag 12. FIG. The outer box 11 includes side pieces 11a ..., bottom pieces 11b, 1
1b '..., lids 11c ... Are connected to each other via a folding curve r, and the tongue piece 11a' is attached to the edge of the side piece 11a to maintain the rectangular shape of the peripheral wall. The inner bag 12 is made of various heat-sealable flexible materials such as a paper laminated with a plastic film, a paper laminated with an aluminum foil, and a plastic film further laminated.

The unfolded member 11 'is placed on the seat 12'.
Is placed as shown in FIG. 3, and the required points a are attached by dots as shown by hatching in FIG. This is bent as shown in FIGS. 4 to 5, and the tongue piece 11a ′ is attached to the side piece 11a.
6 and the inner bag 12 is formed by heat-sealing the edge of the sheet 12 'as shown in the hatching in FIG. In the state of FIG. 6, the product is conveyed to the storage machine.

In the product storing machine (box assembling machine),
First, as indicated by the arrow in FIG. 6, the box B is pushed from the side to form the square shape shown in FIG. At this time, since the bottom edge portion of the inner bag 12 is attached to the four corners of the lower surface of the peripheral wall of the outer box 11 and the center of the tip of the bottom piece 11b ′, the side edge thereof rises to cover the bottom surface of the peripheral wall. From this state, the bottom piece 11b 'is bent inward as shown in FIG. 8, and then the bottom piece 11b is bent inward as shown in FIG.
Affix and close the bottom closure.

After assembling in the state shown in FIG. 9, the viscous products such as miso and paste adhesive are stored in the inner bag 12 in the state shown in FIG. After storage, as shown in FIG. 11, the triangular lid piece 11c is bent inward, the opening of the inner bag 12 is closed and heat sealed, and then the rectangular lid piece 11c is placed inside as shown in FIGS. 12 to 13. Bend and attach the adhesive tape T to the product.

When using the product, one corner is cut off as shown by the broken line in FIG. 13, and the product is poured out from the cutout C. At this time, when returning too much, scoop it back with a spatula etc. If the quantity of goods decreases,
After the adhesive tape T is peeled off and the lid piece 1c is raised or cut off, the upper surface of the inner bag 12 is opened, and the spatula is inserted into the four corners of the bottom surface to dredge. When the amount becomes smaller, the inner bag 12 is removed from the outer box 11 and squeezed out. Inner bag 12 is discarded and outer box 11
After opening the bottom piece 11b by peeling off the tape T, the bottom piece 11b is flatly folded and, if usable, a recycled product.

In the above embodiment, the inner bag 12 is formed and the outer box 11 is formed.
However, as shown in FIG. 14, the inner bag 12 is formed in advance and the inner bag 12 is formed.
It can be attached to 1 '. The order of assembling this is also the same as that described above, and for example, the bottom piece 11b 'is also bent inward before the bottom piece 11b. The seal shape of the open end of the inner bag 12 is not limited to the two-sided seal shape as shown in the figure, but is well-known such as a side-seal type, a three-sided seal type, an envelope shape, a central joint seal type, and a pleated shape. You can adopt one.

As described above, if the inner bag 12 is formed in advance, a general-purpose product can be used for the inner bag 12, and this bag-in can be used with a slight modification to the general-purpose box making machine for the cardboard box 11.・ A box can be manufactured. Moreover, since only the inner bag 12 is attached a, the outer box 1
1. Compared with the simultaneous formation of the inner bag 12 and the inner bag 12, workability is good.

Further, in the above embodiment, the upper portion of the inner bag 12 is valley-folded by the triangular lid piece 1c to form a fold, but as shown in FIG. 15, the lid piece 1c is also quadrangular. Good. In the case of this, as shown in FIG. 16, the upper portion of the inner bag 12 is not valley-folded.

The embodiment shown in FIGS. 18 to 20 has an inner bag 1
2 is a flat-bottom type whose bottom has a flat-bottomed bottom of the outer box 11. This inner bag 12 is a well-known flat bottom type,
Although it may be a square bottom with folds, as shown in FIG. 17, from the flat bag 12 of FIG. A, it is made into a square tube shape and both edges of the lower edge are folded inward (b to c in the same figure). , It is assumed to be folded flat again as shown in FIGS.

As shown in FIG. 18, the inner bag 12 is placed on the unfolded member 11 ', and a suitable portion is attached to it.
Stick the tongue piece 11a 'like a stick. When this box B is assembled, the bottom surface 12a of the inner bag 12 as shown in FIG.
Is flat.

In each of the embodiments in which the inner bag 12 is placed and adhered on the unfolded member 11 ', the cardboard is difficult to be bent at a required crease line due to its structure, and its assembling accuracy is not so good. is there. Therefore, if the size of the inner bag 12 is exactly the same as the inner surface shape of the cardboard box 11, as shown in FIG. 23, the inner bag 12 is stretched as shown by the broken line in FIG. Box 1
In some cases, the opening of 1 further (in the direction of the arrow in the figure) is blocked, and a sufficient quadrangle cannot be obtained.

For this reason, as shown in FIG. 21, the width D of the inner bag 12 is made slightly wider than that described above, and the cardboard box 11 is
The bent edge 12a of the flat fold curve r'is projected by a required length E. In this way, when the cardboard box 11 is assembled as shown in FIG. 23, one side of the inner bag 12 is pulled up like a chain line as shown in FIGS. 24 (a) to (b), It does not prevent the opening of the cardboard box 11 by absorbing the deviation of the folding curve r '. At this time, the position of the sticking a is appropriately set so that the opening of the inner bag 12 is not hindered and the inner bag 12 is surely opened.

The bottom pieces 11b, 11b 'and the lid piece 11c.
As shown in FIG. 21, a step e is provided at both end portions of the side piece 11a connected to each other so that one piece is high and the other piece is low. In this way, each piece 11b, 11b ', 11a
When the folds are folded inward, the step causes the fold line to be stepped between adjacent pieces, and the folds are stacked without bulging.

[0027]

Since the present invention is constructed as described above,
The inner bag can be easily removed from the outer box, and the viscous product can be taken out without waste. Moreover, if the inner bag is made larger than the inner surface shape of the outer box, a square shape can be surely obtained,
Easy to assemble.

[Brief description of drawings]

[Figure 1] Development view of a cardboard box

[Figure 2] Development view of inner bag

[Fig. 3] A state diagram in which a deployment cardboard box is dot-attached to a deployment inner bag

FIG. 4 is a production explanatory view of one embodiment.

FIG. 5 is a production explanatory view of one embodiment.

FIG. 6 is a production explanatory view of one embodiment.

FIG. 7 is a production explanatory view of one embodiment.

FIG. 8 is a production explanatory view of an example.

FIG. 9 is a production explanatory view of one embodiment

FIG. 10 is an explanatory diagram of product storage according to an embodiment.

FIG. 11 is an explanatory diagram of product storage according to an embodiment.

FIG. 12 is an explanatory diagram of product storage according to an embodiment.

FIG. 13 is an explanatory diagram of product storage according to an embodiment.

FIG. 14 is a development view of another embodiment.

FIG. 15 is a development view of another embodiment.

FIG. 16 is an explanatory diagram of product storage of the embodiment.

FIG. 17 is an explanatory view of manufacturing the inner bag.

FIG. 18 is a development view of another embodiment.

FIG. 19 is a production explanatory view of the same embodiment.

FIG. 20 is a production explanatory view of the same embodiment.

FIG. 21 is a development view of another embodiment.

FIG. 22 is a side view of the same example in a flat state.

FIG. 23 is an assembly explanatory diagram of the embodiment.

FIG. 24 is a sectional view of an essential part for explaining the assembly.

FIG. 25 is an explanatory view of manufacturing a conventional example.

FIG. 26 is a manufacturing explanatory view of a conventional example.

FIG. 27 is a manufacturing explanatory view of a conventional example.

[Explanation of symbols]

 1, 11 Cardboard box (outer box) 11 'Outer box unfolded state member 1a, 11a Outer box side piece 1b, 1b', 11b, 11b 'Outer box bottom piece 1c, 11c Outer box lid piece 12 Inner bag 12a Inside Bag bottom 12b Inner bag fold 12 'Rectangular sheet a Adhesive part b Heat seal part r, r'Bent part (crease line)

Claims (4)

[Claims] 1. A side piece 11a is continuously provided via a bending curve r,
The edges are attached to form a square peripheral wall, and the lid pieces 11c bent at right angles to the inside are connected to each side of the peripheral wall upper surface opening peripheral edge, and at the same time, to the peripheral wall lower surface opening peripheral edge side. A square-shaped corrugated cardboard box 11 in which bottom pieces 11b and 11b ′ each bent at a right angle inside are connected in series, and a flexible material capable of sheet sealing that is entirely housed inside the cardboard box 11. A bag characterized by comprising an inner bag 12 and the inner bag 12 being attached at the four corners of the upper and lower openings on the inner surface of the cardboard box 11.
In-box. 2. The bag-in-box according to claim 1, wherein the inner bag 12 is a rectangular sheet in which a rectangular sheet 12 'is bent and its overlapping open edge is sheet-sealed. The member 12 'in the expanded state of the cardboard box 11 is placed on the upper and lower sides and the left and right sides of the sheet 12' so as to project to a required width, and the sheet 12 'and the expanded state member 11' are In addition to the four corners, the bottom piece 11b 'is attached at the center of the tip of each of the two facing pieces. The cardboard box 11 has the side pieces 11a and the lid piece 1 attached thereto.
1c is bent together with the sheet 12 'through the folding curve r, and the bottom pieces 11b and 11b' are
The bottom piece 11b 'to which the inner bag 12 is attached is the other bottom piece 11b.
Seat 1 via folding line r so that it is located more inside
Bag-in characterized by being bent with 2 '
box. 3. The bag-in-box according to claim 1, wherein the inner bag 12 is a flat bottom type having a flat bottom in the shape of the bottom of the cardboard box 11, and the flat bottom is valley-folded at the center line. In addition, the flat inner bag 12 is attached to the member 11 ′ in the expanded state of the cardboard box 11 at the four corners so that the side edges and the lower edges of the flat inner bag 12 are along the folding lines r of the member 11 ′. Bag-in-box characterized by being a. 4. The bag-in bag according to claim 1 or 3.
In the box, the inner bag 12 is made larger than the inner surface shape of the corrugated cardboard box 11 in an assembled state, and pressed from both side surfaces to form a rectangular flat shape, and the member 11 ′ in the expanded state of the cardboard box 11 has the flat shape. Inner bag 12
Is placed so that both bent edges 12b thereof protrude outward from a folding curve r'when the cardboard box 11 is pressed from both sides to form a rectangular flat shape, and the flat inner bag 12 thereof is placed.
A is affixed to the upper and lower two corners of the cardboard box 11 and above and below the opening of the folding curve r ′, and the outer side of the folding curve r ′ of the unfolded member 11 ′ is folded inside. A bag in characterized in that it is bent along a curve r'and its end line is attached, and the outer part and the upper and lower two corners of the inner bag 12 which become the openings of the cardboard box 11 are attached. ·box.