JPH09328143A - Bag container, box container and method for assembling bag container forming sheet and bag container into box form container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag container and a method for assembling a bag con tainer into a box form container which is made easy to take out and eat sweets, etc., contained therein without making a mess around. SOLUTION: The base sheet 1 of a bag container forming sheet S1 is connected with blocking pieces 2, 2a through folding lines 10, 11 and is connected with covering sheets 3, 3a through folding lines 12, 13. The covering sheets 3, 3a are provided with opening edge pieces 30a, 33a through fragile lines 303, 304. On the base sheet 1, side wall forming pieces 14, 15, 16, 17 are formed through a folding line 18. On the covering sheets 3, 3a and on the base sheet 1, side wall forming pieces 30, 31, 32, 33, 34, 35 are formed through folding lines 36, 37. The covering sheet 3 is provided with a fragile line 38 in parallel. Fragile lines 38a and 305 are provided close to the edge part of the longer side of the covering sheet 3 between the fragile lines 38. The covering sheet 3a is provided with a fragile line 39. The edge part of the covering sheet 3a is provided with a catch piece 306.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag container, a box container, a bag container forming sheet, and a method for assembling the bag container into a box-shaped container. More specifically, it is a bag container for packaging confectionery, etc., which can be assembled in a box shape after opening, a bag container forming sheet for forming the bag container, a method for assembling the bag container in a box shape, and opening. The present invention relates to a box container whose interior can be partitioned later.

[0002]

2. Description of the Related Art For example, in packaging of confectionery, fruits, pet foods, etc., envelope type bag containers are used. Previously, confectionery was stored in a bag container as it was, but with the enforcement of the so-called PL method, the confectionery etc. was once packed in a synthetic resin film inner bag and stored in a bag container. Has become commonplace. Therefore, when opening, the bag container is first opened and the inner bag is taken out, and this inner bag is opened, but when eating confectionery, etc., it is taken out from the opening mouth while keeping it inside the inner bag, or another container. To make it easier to take.

[0003]

The above-mentioned conventional packaging using the bag container and the inner bag has the following problems. That is, when eating sweets or the like, it is troublesome to take them out from the bag while keeping them in the inner bag, especially when a plurality of people eat. The inner bag can be torn to make it easier to take out, but it has the drawback of easily spilling sweets and the like and cluttering the surrounding area. In addition, it takes time and effort to prepare or put away another container to transfer it to another container and make it easy to take out. Furthermore, since the bag container is simply an envelope-shaped container, it has only been used as a waste container after opening.

The present invention solves the above-mentioned problems. By effectively utilizing a bag container that has been very limited in its use after opening, it is easy to take out the confectionery contained in the bag container, and It is an object of the present invention to provide a bag container and a method for assembling the bag container into a box-shaped container, which can be eaten without scattering.

[0005]

Means of the present invention taken to solve the above problems are as follows. According to the first aspect of the present invention, there is provided a bag container which can be assembled in a box shape, and has a surface sheet of a required shape and a shape substantially similar to that of the surface sheet, which is closed at the peripheral portion with the surface sheet. A back sheet, and the above-mentioned top sheet or /
Also, the bag sheet is provided with an opening forming means for forming an opening on the back sheet.

According to a second aspect of the present invention, there is provided a bag container which can be assembled in a box shape, wherein the surface sheet has a required shape, the surface sheet has substantially the same shape as the surface sheet, and the surface sheet and the peripheral portion have the same shape. And a closed back sheet, wherein the top sheet and / or the back sheet,
An opening forming means for forming an opening, and a side wall forming means for forming a side wall on the peripheral edge,
It is a bag container.

According to a third aspect of the present invention, there is provided a bag container which can be assembled in a box shape, and has a rectangular or square surface sheet and a shape similar to that of the surface sheet. A closed back sheet, wherein the front sheet and / or the back sheet has a fragile line that is laid out in a desired shape to form an opening, and the outside of the fragile line. Or a fold line for forming a side wall portion, the bag container being provided with or including the line of weakness.

According to a fourth aspect of the present invention, the top sheet and / or the back sheet is provided with a closing means for closing the opening formed by the opening forming means. It is a bag container according to the third invention.

In the fifth invention, the top sheet and / or the back sheet is provided with partition means for partitioning the inside of the container when the bag container is assembled in a box shape. It is a bag container according to the first, second or third invention.

According to a sixth aspect of the present invention, there is provided a box container provided with a top sheet, a back sheet and a side sheet, wherein the top sheet and / or the back sheet has partition means for partitioning the inside of the container. It is a box container equipped with.

According to a seventh aspect of the present invention, there is provided a bag container forming sheet for forming a bag container which can be assembled in a box shape, the base sheet having a required shape and the base sheet being continuously provided on a peripheral portion of the base sheet. And a cover sheet having substantially the same shape as the base sheet when forming the bag container, and a closing means for closing the peripheral portion of the base sheet and the cover sheet, and the base sheet or / And the above-mentioned covering sheet is a bag container forming sheet, which is provided with an opening forming means for forming an opening.

According to an eighth aspect of the present invention, there is provided a bag container forming sheet for forming a bag container which can be assembled in a box shape, the base sheet having a required shape and the base sheet being continuously provided on a peripheral portion of the base sheet. And a cover sheet having substantially the same shape as the base sheet when forming the bag container, and a closing means for closing the peripheral portion of the base sheet and the cover sheet, and the base sheet or / Further, the above-mentioned cover sheet is a bag container forming sheet provided with an opening forming means for forming an opening and a side wall forming means for forming a side wall on a peripheral edge.

According to a ninth aspect of the present invention, there is provided a bag container forming sheet for forming a bag container which can be assembled in a box shape, the base sheet having a required shape and the base sheet being continuously provided on a peripheral portion of the base sheet. And a cover sheet having substantially the same shape as the base sheet when forming the bag container, and a closing means for closing the peripheral portion of the base sheet and the cover sheet, and the base sheet or / And the cover sheet is provided with a fragile line that is separable so as to draw a required shape for forming an opening, and outside the fragile line or including the fragile line to form a side wall. And a folding curve for making the bag container forming sheet.

In the tenth invention, the top sheet and / or the back sheet is provided with a closing means for closing the opening formed by the opening forming means. It is a bag container formation sheet which concerns on 9th invention.

In the eleventh invention, the top sheet and / or the back sheet is provided with partition means for partitioning the interior of the container when the bag container is assembled into a box shape. It is a bag container forming sheet according to the seventh, eighth or ninth invention.

According to a twelfth aspect of the present invention, there is provided a topsheet having a required shape, and a backsheet which has substantially the same shape as the topsheet and which is sealed from the topsheet at its peripheral portion. A bag container having an opening forming means for forming an opening and a side wall forming means for forming a side wall on a peripheral edge is assembled on the top sheet and / or the back sheet in a box shape. A method of assembling a bag container into a box shape, including a step of forming an opening by the opening forming means and a step of forming a side wall by the side wall forming means.

According to a thirteenth aspect of the present invention, there is provided a topsheet having a required shape, and a backsheet which has substantially the same shape as the topsheet and which is closed at the peripheral edge with the topsheet. On the topsheet and / or the backsheet, an opening forming means for forming an opening, a side wall forming means for forming a side wall on the periphery, and when the bag container is assembled in a box shape. A method of assembling a bag container having a partitioning means for partitioning the inside of the container into a box shape, the step of forming an opening by the opening forming means, and forming the side wall by the side wall forming means. And a step of partitioning the inside of the container by the partitioning means, and assembling the bag container into a box shape.

The objects to be contained in the bag container are, for example, confectionery, nuts and fruits such as sweet chestnut or processed products thereof, and pet food such as dog food. The contained items are not limited to foods. The material of the bag container and the bag container forming sheet is, for example, paper, synthetic paper, synthetic resin or a combination thereof, but is not limited to these, and the shape of the box when assembled in a box shape is Other materials can be used as long as they can be kept.

As the opening forming means, in addition to the perforated line which is a weak line, for example, a cutting piece which is cut in one direction with a constant width, but is not limited thereto. It should be noted that a lid may be formed in the opening. The cover sheet may be provided at one location on the peripheral edge of the base sheet, or may be provided at a plurality of locations.

The (working) bag container usually contains a middle bag in which confectionery or the like is packed. When eating a confectionery or the like, first, the edge of the bag container is cut open, or an opening is formed by an opening forming means provided on the front sheet or the back sheet, and the middle bag is taken out from the cut opening or the opening.

Next, the side wall portion is formed on the peripheral portion of the bag container by the side wall portion forming means. If the opening is not formed when the inner bag is taken out, the opening is formed by the opening forming means. As a result, the box-shaped container having the opening is assembled. Then, by opening the inner bag and transferring the stored confectionery or the like to the box-shaped container, it is possible to appropriately take out and eat.

On the top sheet and / or the back sheet, a fragile line which can be separated and which is arranged so as to draw a required shape for forming an opening, and a line which is provided on the outside of the fragile line or including the fragile line, and the side wall With a folding curve for forming a portion, the opening can be formed by manually cutting off the weakened line without using a device, and the side wall can be formed by bending the folding line. Parts can be formed.

In the case where the top sheet and / or the back sheet is provided with a closing means for closing the opening formed by the opening forming means, for example, dust or debris is stored inside the container. In this case, since the opening can be closed by the closing means, even when the container is thrown away as it is, it is hard to spill and clutter the surroundings.

In the case where the top sheet and / or the back sheet is provided with a partitioning means for partitioning the inside of the bag container when the bag container is assembled in a box shape, for example, a middle bag is When there are multiple items and different types of items are packed in them, they can be stored separately. Further, a box container provided with partitioning means for partitioning the inside of the container has substantially the same operation.

A bag container forming sheet for forming a bag container that can be assembled in a box shape is formed by bending a cover sheet to align the base sheet with the peripheral portion, and the portion of the peripheral portion that is not closed except for a folding curve. The bag container can be formed by closing the container with a closing means.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 is an explanatory view showing a first embodiment of a bag container forming sheet according to the present invention, and FIG. 2 is a perspective view showing a state in which a side portion and a lower portion are closed using the bag container forming sheet shown in FIG. 3 is a perspective view showing a state in which the side portion, the lower portion and the upper portion are closed using the bag container forming sheet shown in FIG. 1 to form a bag container. FIG. 4 is a perspective view showing a state where a side wall portion is formed on a side portion of the bag container shown in FIG. 3, and FIG. 5 is a perspective view showing a state where a box-shaped container is formed with an opening portion formed therein.

Reference numeral S1 is a bag container forming sheet, which is formed of cardboard. The bag container forming sheet S1 includes a rectangular base sheet 1 which serves as a back sheet when forming the bag container. Trapezoidal blocking pieces 2, 2a are continuously provided on both short sides of the base sheet 1 over the entire length. Boundary portions between the base sheet 1 and the blocking pieces 2 and 2a are folding curves 10 and 11. On both long sides of the base sheet 1, substantially rectangular covering sheets 3 and 3a which are surface sheets when forming a bag container are continuously provided over the entire length. Base sheet 1 and covering sheets 3, 3a
Boundary portions between and are curved curves 12 and 13.

On one short side of the covering sheets 3, 3a, opening edge pieces 30a, 33a are provided adjacent to the blocking piece 2 via weak lines 303, 304. Lines of weakness 303, 3
04 is formed in a perforated shape and can be easily separated by hand. The cover sheet 3a is formed to be slightly wider than the cover sheet 3, and the edge portions are overlapped so that the cover sheet 3a can be bonded to the cover sheet 3.

Side wall forming pieces 14, 15, 16, 17 having a constant width are formed on the four sides of the base sheet 1. A fold curve 18 is formed at the boundary between the side wall forming pieces 14, 15, 16, 17 and the inside of the base 1. Cover sheets 3, 3
Side wall forming pieces 30, 31, 32, 33, 34, 35 are formed on both short side portions of a and the long side portion on the side of the base sheet 1. A folding curve 36 is formed at the boundary between the side wall forming pieces 30, 31, 32 and the inside of the covering sheet 3. A folding curve 37 is formed at the boundary between the side wall forming pieces 33, 34 and 35 and the inside of the covering sheet 3a. The side wall forming pieces 32, 35 are formed in a trapezoidal shape.

The cover sheet 3 is provided with two weak lines 38 parallel to each other inside a folding line 36 parallel to the edge on the short side. Between the lines of weakness 38, lines of weakness 38a that are parallel to the edges are provided near the edges on the long side of the covering sheet 3. A line of weakness 30 that forms an engagement notch inside the line of weakness 38a
5 is provided.

Further, in the cover sheet 3a, two weak lines 39 are provided in parallel inside the folding line 37 parallel to the edge portion on the short side. At the center of the edge of the covering sheet 3a, a trapezoidal engagement piece 306 having a widened front side that constitutes a closing means is provided at a position facing the weak line 305. In addition,
In FIG. 1, all the portions shown by the solid lines are folding curves except the edge line showing the outer shape of the bag container forming sheet S1.

Here, the procedure for forming the bag container P1 from the bag container forming sheet S1 will be described. The covering sheet 3a is bent from the folding curve 13. The cover sheet 3 is bent from the folding curve 12, and the leading edge portion of the cover sheet 3 is overlapped and adhered to the cover sheet 3a. At this time, the weak lines 38 and 39 are made to overlap.

The blocking piece 2a is bent from the folding curve 11 and is overlapped and adhered to the side wall forming pieces 32 and 35. Then, the double-sided adhesive tape T is attached to the side wall forming pieces 30, 33
(With release paper) is attached, and this shape is the state at the time of shipping the container (see FIG. 2). The container shown in FIG. 2 accommodates an inner bag (not shown) in which confectionery or the like is packed through the upper opening 307. Next, the opening edge pieces 30a and 33a are separated along the weak lines 303 and 304, the closing piece 2 is bent from the folding line 10, and the side wall forming pieces 30 and 33 are bonded by the double-sided adhesive tape T. Thereby, the bag container P1 is formed (see FIG. 3).

Next, the procedure for assembling the box-shaped container B1 from the bag container P1 will be described, and the operation of the bag container P1 will be described. The bag container P1 contains a middle bag in which confectionery or the like is packed. Bending curves 18, 36 and 37 are bent to form corners, and both ends of the blocking piece 2 and the side wall forming piece 14 and the blocking piece 2a and the side wall forming piece 16 have side wall forming pieces 15 and 31 and side wall forming. The pieces 17 and 34 are made to project triangularly from the surface (see FIG. 4).

When eating confectionery or the like, as shown in FIG. 4, weak lines 38 and 3 provided on the covering sheets 3 and 3a.
8a and 39 are separated by hand, the lid pieces 301 and 302 are opened, and the opening 300 is formed. By this, the box-shaped container B
1 is formed. Then, the inner bag is taken out from the opening 300. The above procedure may be performed after the opening 300 is provided and the inner bag is taken out.

By opening the inner bag and transferring the stored confectionery or the like to the box-shaped container B1, it is possible to appropriately take out and eat. As described above, by assembling the bag container P1 into a box shape by assembling the bag container P1 which has conventionally been very limited in use after opening, to form the box container B1. It can be effectively used as a container.
In addition, the box-shaped container B1 having the side wall portion is unlikely to spill contents such as confectionery stored in bulk, and can prevent scattering of the surroundings.

Further, when the eating is stopped halfway, the lid pieces 301 and 302 can be closed by engaging the engaging piece 306 with the engaging notch 305a (formed by separating the weakened line 305). You can prevent it from spilling. Further, when the box-shaped container B1 is used as a waste container, the waste is unlikely to spill when the container is discarded together with the waste container, and the waste can be processed without scattering the surroundings.

FIG. 6 is an explanatory view showing a second embodiment of the bag container forming sheet according to the present invention, and FIG. 7 is a perspective view of a bag container formed using the bag container forming sheet shown in FIG. .
FIG. 8 is a perspective view showing a state where a side wall portion is formed on a side portion of the bag container shown in FIG. 7, and FIG. 9 is a perspective view showing a state where a box-shaped container is assembled by forming an opening and a partition member. In the drawings, the same or equivalent parts as those in the first embodiment are designated by the same reference numerals.

On both long sides of the base sheet 1 of the bag container forming sheet S2, substantially rectangular covering sheets 3b and 3c are continuously provided over the entire length. Of the covering sheets 3b and 3c,
Weak lines 36a and 37a are provided at the portions of the covering sheets 3 and 3a corresponding to the folding curves 36 and 37. Also,
Partition pieces 360, 370 having a constant width parallel to the short side of the base sheet 1 are formed by folding lines 361, 371 inside the weakened lines 36a, 37a of the covering sheets 3b, 3c. Folding lines 362 and 372 are provided in parallel with each other at a required distance from the folding lines 361 and 371. The procedure for forming the bag container P2 from the bag container forming sheet S2 is substantially the same as the procedure for forming the bag container P1 from the bag container forming sheet S1, and therefore description thereof will be omitted.

Next, the procedure for assembling the box-shaped container B2 from the bag container P2 will be described, and the operation of the bag container P2 will be described. The bag container P2 contains an inner bag (not shown) in which confectionery or the like is usually packed. Folding curve 18 and line of weakness 36
a and 37a are bent to form a corner portion, and both ends of the blocking piece 2 and the side wall forming piece 14 and the blocking piece 2a and the side wall forming piece 16 have side wall forming pieces 15 and 31 and side wall forming pieces 17 and 3, respectively.
4 is made to project in a triangular shape from the surface (see FIG. 7).

When eating a confectionery or the like, as shown in FIG. 8, a weak line 36 provided on the covering sheets 3b and 3c.
a and 37a are separated by hand, and the inner bag is taken out from the opening 300. Then, from the folding lines 361 and 371 that are the edge lines of the partition upper pieces 360 and 370, bend at a right angle to the inside of the container,
The inside of the container is divided into two by bending along folding lines 362 and 372.

By opening the inner bag and transferring the stored confectionery or the like to the box-shaped container B2, it can be appropriately taken out and eaten. In addition, since the inside of the container is partitioned, for example, when there are a plurality of inner bags and different kinds of confectionery or the like are packed in each, they can be separately stored, which is convenient.

FIG. 10 is a perspective view showing an embodiment of a box container according to the present invention. The box container B3 is a box container having a general structure, and includes a top sheet 41 and a back sheet (not visible in the figure).
And a side sheet 42. Similar to the covering sheets 3b and 3c of the bag container P2, the top sheet 41 has a partition upper piece 45 having a constant width inside the weakened lines 43 and 44 and the folding curve 4.
It is formed by 51 and 452. In addition, folding curves 46 and 47 are formed in parallel on the outer side thereof.

The usage and operation of the box container B3 are as follows. The box container B3 accommodates an inner bag (not shown) in which confectionery or the like is packed. When eating sweets,
The lines of weakness 43 and 44 provided on the surface sheet 41 are cut off by hand, and the inner bag is taken out from the opening. The fold lines 451 and 452, which are the edge lines of the partition upper piece 45, are bent at a right angle to the inside of the container, and the fold lines 46 and 47 are bent to divide the inside of the container into two parts.

Then, by opening the inner bag and transferring the stored confectionery or the like to the box container B3, it is possible to take it out and eat it appropriately. In addition, since the inside of the container is partitioned, when there are a plurality of inner bags and different kinds of confectionery or the like are packed in each, they can be separately stored, which is convenient. The present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims.

[0046]

The present invention having the above-mentioned structure has the following effects. (A) When eating a confectionery or the like contained in a bag container, first, the edge of the bag container is cut open, or an opening is formed by an opening forming means provided on the front sheet or the back sheet, and the cut opening is formed. Or take out the inner bag from the opening. Next, the side wall portion is formed on the peripheral portion of the bag container by the side wall portion forming means. If the opening is not formed when the inner bag is taken out, the opening is formed by the opening forming means. As a result, the box-shaped container having the opening is assembled. Then, by opening the inner bag and transferring the stored confectionery or the like to the box-shaped container, it is possible to appropriately take out and eat. As described above, by forming a box-shaped container by assembling a bag-shaped container, which has conventionally been very limited in use after opening, into a box-shaped container, the box-shaped container is used as a container when eating a confectionery or the like. It can be used effectively. In addition, the box-shaped container having the side wall portion is unlikely to spill contents such as confectionery stored in pieces, and can prevent the surroundings from being scattered.

(B) The top sheet and / or the back sheet is provided with a fragile line which can be separated and which is arranged in a required shape for forming an opening, and on the outside of the fragile line or including the fragile line. A fold curve for forming the side wall,
In the device provided with (1), the line of weakness can be cut off by hand to form the opening without using any instrument, and the side wall can be formed by bending the line of bending.

(C) In the case where the top sheet and / or the back sheet is provided with a closing means for closing the opening formed by the opening forming means, for example, dust or debris is stored inside the container. In this case, since the opening can be closed by the closing means, even when the container is thrown away as it is, it is hard to spill and the surroundings are not easily scattered.

(D) A bag provided with a partitioning means for partitioning the inside of the container when the container is assembled into a box shape has, for example, a plurality of inner bags of different types. When the contents are packed, they can be stored separately, which is convenient and convenient.
In addition, even a box container provided with a partitioning means for partitioning the inside of the container has substantially the same effect.

(E) A bag-container forming sheet for forming a bag container that can be assembled in a box shape is made by bending the covering sheet to align the base sheet with the peripheral edge and removing the folding curve and the like from the peripheral edge. The bag container can be formed by sealing the unsealed portion with a sealing means. That is, according to the bag container forming sheet, the material capable of forming the bag container can be managed in a thin sheet state, so that it is not bulky during storage and transportation and is efficient.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a first embodiment of a bag container forming sheet according to the present invention.

FIG. 2 is a perspective view showing a state in which the side portion and the lower portion are closed using the bag container forming sheet shown in FIG.

FIG. 3 is a perspective view showing a state in which a side portion, a lower portion and an upper portion are closed using the bag container forming sheet shown in FIG. 1 to form a bag container.

FIG. 4 is a perspective view showing a state where a side wall portion is formed on a side portion of the bag container shown in FIG.

FIG. 5 is a perspective view showing a state in which an opening is formed and a box-shaped container is assembled.

FIG. 6 is an explanatory view showing a second embodiment of the bag container forming sheet according to the present invention.

7 is a perspective view of a bag container formed by using the bag container forming sheet shown in FIG.

8 is a perspective view showing a state where a side wall portion is formed on a side portion of the bag container shown in FIG.

FIG. 9 is a perspective view showing a state in which a box-shaped container is assembled by forming an opening and a partition member.

FIG. 10 is a perspective view showing an embodiment of a box container according to the present invention.

[Explanation of symbols]

 S1 Bag container forming sheet 1 Base sheet 2, 2a Sealing piece 10, 11 Folding curve 3, 3a Covering sheet 12, 13 Folding curve 14, 15, 16, 17 Side wall forming piece 18 Folding curve 30, 31, 32, 33, 34, 35 Side wall forming piece 30a, 33a Opening edge piece 36, 37 Folding curve 38, 38a, 39 Weak line P1 Bag container B1 Box-shaped container 300 Opening 301, 302 Lid piece 303, 304 Weak line 305 Weak line 305a Joint cut 306 Engagement piece 307 Opening S2 Bag container forming sheet 3b, 3c Covering sheet 36a, 37a Weak line 360, 370 Partition top piece 361, 371, 362, 372 Folding curve P2 Bag container B2 Box container 372 Fold B3 box Container 41 Top sheet 42 Side sheet 43,44 Weak line 45 Partition top piece 451,452 Folding curve 46,47 Curve

Claims (13)

[Claims] 1. A bag container which can be assembled in a box shape, and a surface sheet having a required shape, and a back sheet which is substantially the same in shape as the surface sheet and which is sealed at the peripheral portion with the surface sheet. The bag container, wherein the top sheet and / or the back sheet is provided with opening forming means for forming an opening. 2. A bag container which can be assembled in a box shape, and a surface sheet having a required shape, and a back sheet which is substantially the same in shape as the surface sheet and which is sealed at the peripheral portion with the surface sheet. The top sheet and / or the back sheet is provided with an opening forming means for forming an opening, and a side wall forming means for forming a side wall on the peripheral edge. A bag container. 3. A bag container that can be assembled in a box shape, and has a rectangular or square top sheet, and a back sheet that has the same shape as the top sheet and is closed at the peripheral edge with the top sheet. The front surface sheet and / or the back sheet is provided with a fragile line that is laid out in a required shape to form an opening, and a fragile line that is separable or outside the fragile line. And a fold curve for forming a side wall portion, the bag container. 4. The closing means for closing the opening formed by the opening forming means is provided in the topsheet and / or the backsheet, wherein the closing sheet is provided. Bag container. 5. The front sheet and / or the back sheet is provided with partition means for partitioning the inside of the bag container when the bag container is assembled in a box shape. 2. The bag container according to 2 or 3. 6. A box container provided with a top sheet, a back sheet, and a side sheet, wherein the top sheet and / or the back sheet is provided with partitioning means for partitioning the interior of the container. And, the box container. 7. A bag container forming sheet for forming a bag container that can be assembled in a box shape, the base sheet having a required shape and the base sheet being continuously provided to the peripheral portion of the base sheet, the bag container being substantially formed when the bag container is formed. A cover sheet having a shape similar to that of the base sheet, and a blocking means for blocking the peripheral portion of the base sheet and the cover sheet, and the base sheet or / and the cover sheet, A bag container forming sheet, comprising an opening forming means for forming an opening. 8. A bag container forming sheet for forming a bag container that can be assembled in a box shape, the base sheet having a required shape and the base sheet being continuously connected to a peripheral portion of the base sheet, the bag container being substantially formed at the time of forming the bag container. A cover sheet having a shape similar to that of the base sheet, and a blocking means for blocking the peripheral portion of the base sheet and the cover sheet, and the base sheet or / and the cover sheet, A bag container forming sheet, comprising: an opening forming means for forming an opening; and a side wall forming means for forming a side wall on a peripheral edge. 9. A bag container forming sheet for forming a bag container which can be assembled into a box shape, the base sheet having a required shape and a peripheral portion of the base sheet, the bag being substantially continuous when the bag container is formed. A cover sheet having a shape similar to that of the base sheet, and a blocking means for blocking the peripheral portion of the base sheet and the cover sheet, and the base sheet or / and the cover sheet, A severable fragile line which is arranged so as to draw a required shape for forming the opening, and a fold line which is provided outside of the fragile line or including the fragile line and which forms a side wall part; A bag container forming sheet, comprising: 10. The top sheet and / or the back sheet is provided with a closing means for closing the opening formed by the opening forming means. Bag container forming sheet. 11. The top sheet and / or the back sheet is provided with partitioning means for partitioning the inside of the bag container when the bag container is assembled in a box shape. 8. The bag container forming sheet according to 8 or 9. 12. A surface sheet having a required shape, and a back sheet which has substantially the same shape as the top sheet and is closed at the peripheral portion of the top sheet, and / or the top sheet and / or the back surface. A method for assembling a bag container in a box shape, comprising: an opening forming means for forming an opening on a sheet; and a side wall forming means for forming a side wall on a peripheral edge, the method comprising: A method of assembling a bag container into a box shape, comprising: a step of forming an opening by means of a part forming means; and a step of forming a side wall part by the side wall part forming means. 13. A surface sheet having a required shape, and a back sheet which has substantially the same shape as the top sheet and is closed at the peripheral edge portion of the top sheet, and the top sheet and / or the back surface. The sheet has an opening forming means for forming an opening, a side wall forming means for forming a side wall at the periphery, and a partition for defining the inside of the container when the bag container is assembled in a box shape. A method of assembling a bag container having a partition means into a box shape, the method comprising: forming an opening by the opening forming means; forming a side wall by the side wall forming means; A method for assembling a bag container into a box, comprising the step of partitioning the inside of the container.