KR102643322B1 - liquid storage container - Google Patents

Abstract

The liquid storage container (1) has a bag body (3) having a first base portion (2A) and a second base portion (2B), and a main outlet (40) provided on the edge (3a) of the bag body (3). do. In the vicinity of both ends of the main outlet installation portion 50 of the main outlet 40, a protection device 20 is provided to cover the joint portion of the first base material portion 2A and the second substrate portion 2B.

Description

liquid storage container

Embodiments of the present disclosure relate to liquid storage containers, and in particular, to liquid storage containers provided for storage or transportation of fluid contents in the fields of industrial chemicals, pharmaceuticals, cosmetic raw materials, etc.

Conventionally, in the fields of industrial chemicals, pharmaceuticals, cosmetics raw materials, etc., liquid storage containers (e.g. , JP2013-144561A) is being used.

Since these liquid storage containers can be reused simply by removing the used liquid storage container from the external container and setting a new liquid storage container inside the external container, for example, without using a liquid storage container, directly using plastic or Compared to the case of filling fluid contents in an external container such as steel, there are advantages such as reducing the effort of cleaning, and it is widely used as a container for raw materials for industrial chemicals, pharmaceuticals, and cosmetics.

Also known as a liquid storage container is a flat container having a bag body and a main outlet provided in the bag body. This liquid storage container is first compactly folded and inserted into the outer container from the opening of the outer container. Thereafter, the liquid storage container is inflated within the outer container, and is placed within the outer container so that the outer shape of the liquid storage container follows the inner surface of the outer container.

When a large-capacity external container is used to place the liquid storage container, for example, an external container with a capacity of about 1000 l is used, and the external container has a hexahedral box-like shape like the container. In this case, the use of a hexahedral box-shaped liquid storage container that can be inflated to match the inner shape of the box-shaped external container is being considered.

Meanwhile, the bag body has a first base portion and a second base portion bonded to each other, and the main outlet is bonded to one edge of the bag body. When such a liquid storage container is filled with a large amount of contents, a large load is applied to the joint portion of the first and second substrate portions near the main outlet, and the bag body may break at this portion.

The embodiment of the present disclosure has been made in consideration of these points, and when the contents are filled in the liquid storage container, even if a large load is applied to the joint between the first and second substrates near the main outlet, this joint is effectively protected. The purpose is to provide a liquid storage container that can

The first liquid storage container according to the present disclosure,

A bag body having a first base portion and a second base portion,

Equipped with a main outlet installed on an edge of the bag body,

The main outlet has a main outlet main body and a main outlet installation part joined to the bag main body,

In the rim of the bag body where the main outlet is installed, the main outlet installation portion is joined to the first base material and the second base material, and the main outlet is installed in the rim of the bag body where the main outlet is installed. The first base material and the second base material are joined in areas other than the portion, and a protection device is provided to cover the joint portion of the first base material and the second base material at least in the vicinity of both ends of the main outlet installation portion.

The second liquid storage container according to the present disclosure,

A bag body having a first base portion and a second base portion,

Equipped with a main outlet installed on an edge of the bag body,

The main outlet has a main outlet main body and a main outlet installation part joined to the bag main body,

In the rim of the bag body where the main outlet is installed, the main outlet installation portion is joined to the first base material and the second base material, and the main outlet is installed in the rim of the bag body where the main outlet is installed. The first substrate portion and the second substrate portion are bonded to each other in areas other than the portion,

At least a portion facing a boundary line between both ends of the main outlet installation portion in the first substrate portion and the second substrate portion, and a portion facing a boundary line between both ends of the main outlet installation portion in the second substrate portion and the first substrate portion. A protective device is provided to cover it.

The third liquid storage container according to the present disclosure,

A bag body having a first base portion and a second base portion,

a main outlet installed on an edge of the bag body;

Provided with a protective member that at least partially covers the bag body,

The main outlet has a main outlet main body and a main outlet installation part joined to the bag main body,

In the rim of the bag body where the main outlet is installed, the main outlet installation portion is joined to the first base material and the second base material, and the main outlet is installed in the rim of the bag body where the main outlet is installed. The first substrate portion and the second substrate portion are bonded to each other in areas other than the portion,

The protective device is,

The portion facing the boundary line between both ends of the main outlet installation portion of the first base portion and the second base portion is spaced apart from the main outlet body in a direction perpendicular to the edge of the bag body where the main outlet is installed. With the end, which is the side,

A portion of the second base portion facing the boundary line of the first base portion and both ends of the main outlet installation portion is spaced apart from the main outlet body in a direction perpendicular to the edge of the bag body where the main outlet is installed. It covers at least the ends, which are the sides.

The fourth liquid storage container according to the present disclosure is:

A bag body having a first base portion and a second base portion,

a main outlet installed on an edge of the bag body;

Provided with a protective member that at least partially covers the bag body,

The main outlet has a main outlet main body and a main outlet installation part joined to the bag main body,

In the rim of the bag body where the main outlet is installed, the main outlet installation portion is joined to the first base material and the second base material, and the main outlet is installed in the rim of the bag body where the main outlet is installed. The first base portion and the second base portion are bonded to each other in areas other than the portion,

The protection device is provided in at least a portion of the area along the edge of the bag body where the main outlet is installed, at a joint portion of the first base material portion and the second base material portion, and at the edge of the bag body where the main outlet is installed. It covers at least the edge portion on the side away from the main outlet body in a direction perpendicular to the .

The fifth liquid storage container according to the present disclosure is:

A bag body having a first base portion and a second base portion,

a main outlet installed on an edge of the bag body;

Provided with a protective member that at least partially covers the bag body,

The main outlet has a main outlet main body and a main outlet installation part joined to the bag main body,

In the rim of the bag body where the main outlet is installed, the main outlet installation portion is joined to the first base material and the second base material, and the main outlet is installed in the rim of the bag body where the main outlet is installed. The first substrate portion and the second substrate portion are bonded to each other in areas other than the portion,

The protection device is provided at least in a portion of an area along the edge of the bag body where the main outlet is installed, at a junction of the first base portion and the main outlet installation part, and at the edge of the bag body where the main outlet is installed. In the direction perpendicular to the edge of the bag body where the main outlet is installed, the edge portion is on the side away from the main outlet body in the vertical direction, and the joint portion of the second base material portion and the main outlet installation portion. Covers at least the edge portion on the side away from the main outlet body.

In a certain liquid storage container according to the present disclosure, the protection device includes a portion facing a boundary line between both ends of the main outlet installation portion of the first base portion and the second base portion of the bag body where the main outlet is installed. At least an area included along the edge, and an area included along the edge of the bag body where the main outlet is installed, and a portion facing the boundary line of the first base material and both ends of the main outlet installation part in the second base material. You may cover it.

In a certain liquid storage container according to the present disclosure, the protection device includes a portion of the first base portion facing the boundary line between both ends of the main outlet installation portion and the second base portion of the bag body where the main outlet is installed. The area included in the direction perpendicular to the edge, and the portion facing the boundary line between both ends of the main outlet installation portion of the second base material portion and the first base material portion are perpendicular to the edge of the bag body where the main outlet is installed. In terms of direction, it may cover at least the enclosed area.

In any liquid storage container according to the present disclosure,

The protective device is,

The portion facing the boundary line between both ends of the main outlet installation portion of the first base portion and the second base portion is spaced apart from the main outlet body in a direction perpendicular to the edge of the bag body where the main outlet is installed. With the end, which is the side,

A portion of the second base portion facing the boundary line of the first base portion and both ends of the main outlet installation portion is spaced apart from the main outlet body in a direction perpendicular to the edge of the bag body where the main outlet is installed. You may cover at least the end, which is the side.

In any of the liquid storage containers according to the present disclosure, the protection device may cover a joint portion of the first substrate portion and the second substrate portion near both ends of the main outlet installation portion.

In a certain liquid storage container according to the present disclosure, the protection device includes a joint portion of the first substrate portion and the second substrate portion in at least a portion of the area along the edge of the bag body where the main outlet is installed. It may cover at least the area contained in the direction perpendicular to the edge of the bag body where the main outlet is installed.

In any liquid storage container according to the present disclosure, the protection device includes: a joint portion of the first substrate portion and the second substrate portion in at least a portion of the area along the edge of the bag body where the main outlet is installed; It may be at least covered with an edge portion located on a side away from the main outlet body in a direction perpendicular to the edge of the bag body where the main outlet is installed.

In a certain liquid storage container according to the present disclosure, the protection device is configured to form a joint between the first base portion and the main outlet installation portion in at least a portion of the area along the edge of the bag body where the main outlet is installed. A region included in a direction perpendicular to the edge of the bag body where the outlet is installed, and a joint portion of the second base portion and the main outlet installation part is included in a direction perpendicular to the edge of the bag body where the main outlet is installed. You may try to cover at least the area covered.

In any liquid storage container according to the present disclosure, the protection device is located at a joint portion of the first base portion and the main outlet installation portion in at least a portion of the area along the edge of the bag body where the main outlet is installed. a rim portion on a side away from the main outlet body in a direction perpendicular to the rim of the bag body where the main outlet is installed; and a joint portion of the second base material portion and the main outlet installation portion. It may be made to cover at least the edge portion on the side away from the main outlet body in the direction perpendicular to the edge of the bag body.

In any of the liquid storage containers according to the present disclosure, the protection device may include a storage groove into which the edge of the bag body where the main outlet is installed enters.

In any liquid storage container according to the present disclosure,

The protective device has a pair of protective gear connectable to each other,

Each protective device may have a protective device body including a storage groove into which the rim of the bag body where the main outlet is installed is inserted.

In any liquid storage container according to the present disclosure,

Each protective device has a protective device main body covering a joint portion of the first base portion and the second base material portion, and a two-pronged portion branching into two from the protective device main body,

The tip of the two prongs of one protective device and the distal end of the two prongs of the other protective device may be connected to each other, and the pair of protective devices may surround the main outlet installation portion.

In a liquid storage container according to the present disclosure, each protective device includes a positioning portion that is connected to at least one of the protective device main body and the two branches and contacts the main outlet to position the protective device with respect to the main outlet. You can have more.

In any liquid storage container according to the present disclosure, the positioning portion may include a plate-shaped portion having a main surface in surface contact with the main outlet, and an end surface in contact with the main outlet and non-parallel to the main surface.

In any liquid storage container according to the present disclosure, the positioning portion may be connected to a first arm portion and a second arm portion forming the bifurcated portion.

In any liquid storage container according to the present disclosure, the pair of protective devices may have the same configuration.

In any liquid storage container according to the present disclosure, the protection device may be connected to the main outlet.

In any liquid storage container according to the present disclosure, the protection device may be such that the area covering the edge of the bag body where the main outlet is installed does not extend to both ends of the edge of the bag body.

The combination of a liquid storage container and an external container according to the present disclosure,

A liquid storage container according to the present disclosure,

An external container is provided that accommodates the liquid storage container and has an opening into which the main outlet is mounted.

In the combination of a liquid storage container and an external container according to the present disclosure, the liquid contents may be stored in the bag body of the liquid storage container.

The combination of the liquid storage container and the holder according to the present disclosure,

A liquid storage container according to the present disclosure,

Provided with a retainer mounted on the main outlet body,

The protection device is connected to the holder.

The first protective device according to the present disclosure is:

A bag body having a first base portion and a second base portion, wherein the first base portion and the second base portion are joined at an edge;

disposed between a main outlet body protruding from the edge of the bag body and the first base member and the second base member in a region other than the area where the first base member and the second base member are joined; A protection device installed in a liquid storage container having a main outlet having a main outlet installation part joined to the first base part and the second base part,

At least in the vicinity of both ends of the main outlet installation portion, the joint portion of the first substrate portion and the second substrate portion is covered.

The second protective device according to the present disclosure is:

A bag body having a first base portion and a second base portion, wherein the first base portion and the second base portion are joined at an edge;

disposed between a main outlet body protruding from the edge of the bag body and the first base member and the second base member in a region other than the area where the first base member and the second base member are joined; A protection device installed in a liquid storage container having a main outlet having a main outlet installation part joined to the first base member and the second base member,

At least a portion facing a boundary line between both ends of the main outlet installation portion in the first substrate portion and the second substrate portion, and a portion facing a boundary line between both ends of the main outlet installation portion in the second substrate portion and the first substrate portion. Cover.

The third protective device according to the present disclosure is:

A bag body having a first base portion and a second base portion, wherein the first base portion and the second base portion are joined at an edge;

disposed between a main outlet body protruding from the edge of the bag body and the first base member and the second base member in a region other than the area where the first base member and the second base member are joined; A protection device installed in a liquid storage container having a main outlet having a main outlet installation part joined to the first base part and the second base part,

The portion facing the boundary line between both ends of the main outlet installation portion of the first base portion and the second base portion is spaced apart from the main outlet body in a direction perpendicular to the edge of the bag body where the main outlet is installed. With the end, which is the side,

A portion of the second base portion facing the boundary line of the first base portion and both ends of the main outlet installation portion is spaced apart from the main outlet body in a direction perpendicular to the edge of the bag body where the main outlet is installed. It covers at least the ends, which are the sides.

The fourth protective device according to the present disclosure is:

A bag body having a first base portion and a second base portion, wherein the first base portion and the second base portion are joined at an edge;

disposed between a main outlet body protruding from the edge of the bag body and the first base member and the second base member in a region other than the area where the first base member and the second base member are joined; A protection device installed in a liquid storage container having a main outlet having a main outlet installation part joined to the first base part and the second base part,

In at least a portion of the area along the edge of the bag body where the main outlet is installed, a joint portion of the first base material portion and the second base material portion is located in a direction perpendicular to the edge of the bag body where the main outlet is installed. It covers at least the edge portion on the side away from the main outlet body.

The fifth protective device according to the present disclosure is:

A bag body having a first base portion and a second base portion, wherein the first base portion and the second base portion are joined at an edge;

disposed between a main outlet body protruding from the edge of the bag body and the first base member and the second base member in a region other than the area where the first base member and the second base member are joined; A main outlet installation portion joined to the first substrate portion and the second substrate portion. It is a protective device installed in a liquid storage container having a main outlet,

In at least a portion of the area along the edge of the bag body where the main outlet is installed, the joint portion of the first base portion and the main outlet installation portion is in a direction perpendicular to the edge of the bag body where the main outlet is installed. a border portion on a side away from the main outlet body, and a joint portion of the second base material portion and the main outlet installation portion in a direction perpendicular to the edge of the bag body where the main outlet is installed. It covers at least the edge portion on the side away from.

As described above, according to the present disclosure, when the contents are filled in the liquid storage container, even if a large load is applied to the joint between the first and second substrates near both ends of the main outlet, a liquid can effectively protect the joint. A storage container may be provided.

1 is a perspective view showing a liquid storage container according to an embodiment of the present disclosure.
Fig. 2 is a diagram showing a protective device equipped with a liquid storage container.
Fig. 3 is a side view showing the upper edge portion of the liquid storage container and the protection device.
Fig. 4 is a side view showing the upper edge portion of the liquid storage container.
Fig. 5A is a perspective view showing the front side of the protection device.
Fig. 5B is a perspective view showing the back side of the protection device.
Fig. 5C is a perspective view showing the front side of another example of a protection device.
Fig. 5D is a perspective view showing the back side of another example of the protection device.
Fig. 6A is a side view showing a modification of the present embodiment.
Fig. 6B is a side view showing another modification of the present embodiment.
Fig. 6C is a front view showing another modification of the present embodiment.
Fig. 6d is a perspective view showing the protection device shown in Fig. 6c in an open state.
Fig. 7A is a side view showing another modification of the present embodiment.
Fig. 7B is a side view showing a modification of the blade of this embodiment.
Fig. 8 is a diagram showing a liquid storage container according to an embodiment of the present disclosure.
Fig. 9 is a diagram showing a state of manufacturing a liquid storage container.
Fig. 10 is a diagram showing the folding action of the liquid storage container.
Fig. 11 is a diagram showing the folding action of the liquid storage container.
Fig. 12 is a diagram showing the folding action of the liquid storage container.
Fig. 13 is a diagram showing the folding action of the liquid storage container.
Fig. 14 is a diagram showing the folding action of the liquid storage container.
Fig. 15 is a diagram showing the folding action of the liquid storage container.
Fig. 16 is a diagram showing the folding action of the liquid storage container.
Fig. 17 is a diagram showing the folding action of the liquid storage container.
Fig. 18 is a diagram showing the folding action of the liquid storage container.
Fig. 19 is a diagram showing the folding action of the liquid storage container.
Fig. 20 is a perspective view showing the main exit.
Fig. 21 is a plan view showing a combination of a main outlet and a holder.
Fig. 22 is a side view showing the combination of the main outlet and the holder.
Fig. 23 is a diagram showing a state in which the liquid storage container is inserted into the external container.
Figure 24 is a diagram showing the results of a fracture test.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Here, Figures 1 to 24 are diagrams showing an embodiment of the present invention.

<This embodiment>

As shown in FIGS. 1 to 6A and 6B, the liquid storage container 1 is a hexahedral box-shaped bag body having at least a first base portion 2A and a second base portion 2B joined to each other. (3) and a main outlet (40) installed in the bag body (3). Here, Figures 2 to 4 are diagrams showing the state before the bag body is inflated.

Among these, in the bag main body 3, the upper edge 3a and the lower edge 3b of the first base portion 2A and the second base portion 2B are joined to each other. In the example shown, the main outlet 40 is installed on the upper edge 3a of the bag body 3. In this case, the main outlet 40 is connected to the main outlet main body 41 having the main outlet flange 42, and below the main outlet main body 41, and is joined to the upper edge 3a of the bag main body 3. It has a main outlet installation portion 50 (see FIG. 4). However, it is not limited to the example shown, and the shape of the bag body 3 in plan view can be of various shapes. Additionally, the bag body 40 may be installed on an edge other than the upper edge 3a of the bag body 3.

In addition, the details of the structure of the box-shaped bag body 3 described above will be described later.

In addition, in this specification, “top,” “upper edge,” “bottom,” and “bottom edge” refer to “top,” “upper edge,” and “top” in the case where the liquid storage container 1 is placed with the main outlet 40 facing upward. It refers to “bottom” and “bottom border.” Additionally, “both sides” refers to both sides in the width direction perpendicular to the straight line passing through the main outlet 40 connecting the top and bottom of the bag body 3.

And in the upper edge 3a of the bag body 3, the main outlet installation portion 50 of the main outlet 40 is joined to the first base portion 2A and the second base portion 2B, and In the area of the upper edge 3a other than the main outlet installation portion 50, the first substrate portion 2A and the second substrate portion 2B are directly joined. By joining the upper edge 3a of the bag body 3 in this way, the upper edge joint portion 10a, which will be described later, is formed.

In the upper edge 3a of the bag body 3, the portion where the first base portion 2A and the second base portion 2B are directly joined in the area other than the main outlet installation portion 50 is the portion of the bag main body 3. (3) This is the part where load is applied when the contents are filled. In particular, a larger load is applied to the portion 90 (see FIG. 4) where the first substrate portion 2A and the second substrate portion 2B are joined near both ends of the main outlet installation portion 50.

More strictly speaking, when the bag body 3 is filled with contents, a large load is added to the portion adjacent to both ends of the main outlet installation portion 50 of the bag body 3. That is, the contents in the bag body 3 are placed at both ends of the main outlet installation portion 50 of the first base portion 2A and the portion facing the boundary line 91A (see Fig. 4) of the second base portion 2B. A large load is added when this is charged. Similarly, the contents in the bag body 3 are placed at both ends of the main outlet installation portion 50 of the second base portion 2B and the portion facing the boundary line 91B (see Fig. 3) of the first base portion 2A. A large load is added when this is charged.

Here, both ends of the main outlet installation portion 50 refer to both ends of the main outlet installation portion 50 along the upper edge 3a. In other words, both ends of the main outlet installation portion 50 refer to both ends of the main outlet installation portion 50 in the width direction of the liquid storage container 1 in the horizontal direction on the paper of FIGS. 3 and 4. says

In addition, in the main outlet installation part 50, heating is performed between the main outlet installation part 50 and the first base material part 2A and the second base material part 2B to a temperature higher than the melting point of the main outlet installation part 50. It is joined. For this reason, the first base portion 2A and the second base portion 2B are partially liquefied by heating and migrate to the inner side of the bag body 3 to form protrusions 92 of synthetic resin.

And when the contents in the bag body 3 are filled, as described above, a large load is applied near both ends of the main outlet installation portion 50, and starting from this projection 92, the first base portion 2A ) Alternatively, it is conceivable that the second base material 2B may be damaged.

For this reason, in this embodiment, as shown in FIG. 3, a protection device 20 is provided to cover the bag body 3. The area covered by the protection device 20 of the bag body 3 is given rigidity by the protection device 20, making it difficult to deform. As a result, the bag body 3 is deformed, and in particular, the bag body 3 repeatedly moves relative to the main outlet installation portion 50 at a certain position, causing the bag body 3 to deform. It effectively prevents damage such as breakage.

In this embodiment, the protection device 20 covers at least the portion of the bag body 3 adjacent to both ends of the main outlet installation portion 50. In other words, the protection device 20 includes a portion facing both ends of the main outlet installation portion 50 in the first substrate portion 2A and the boundary line 91A of the second substrate portion 2B, and a portion of the second substrate portion 2A. At least both ends of the main outlet installation portion 50 in (2B) and the portion facing the boundary line 91B of the first substrate portion 2A are covered. The illustrated protection device 20 also covers the portion 90 where the first substrate portion 2A and the second substrate portion 2B are joined near both ends of the main outlet installation portion 50. .

A first base portion 2A in a portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3, and further in the vicinity of both ends of the main outlet installation portion 50 in the bag body 3; At the portion 90 where the second base portion 2B is joined, the bag body 3 can easily move relative to the main outlet installation portion 50. For example, the bag body 3 tends to swing relative to the main outlet mounting portion 50 around the axis formed by both ends of the main outlet mounting portion 50. Due to this movement of the bag body 3 relative to the main outlet installation portion 50, the bag body 3 becomes prone to breaking at this portion. In particular, when the bag body 3 repeatedly moves with respect to the main outlet installation portion 50 at a predetermined position, the bag body 3 becomes significantly susceptible to damage at or near that position.

In order to deal with this problem, in the present embodiment, a portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3, and further near both ends of the main outlet installation portion 50 in the bag body 3, is provided. The portion 90 where the first substrate portion 2A and the second substrate portion 2B are joined is covered by the protection device 20 . By covering the bag body 3 with the protective device 20, it is possible to effectively prevent the portion that is easy to move with respect to the main outlet installation part 50 of the bag body 3 from moving with respect to the main outlet installation part 50. You can. Therefore, according to this protection device 20, damage such as breakage of the bag body 3 can be effectively prevented.

That is, by means of this protection device 20, the portion adjacent to both ends of the main outlet installation portion 50 in the above-mentioned bag body 3, and further near both ends of the main outlet installation portion 50 in the bag body 3. Even if a large load is applied to the portion 90 that becomes the bag body 3, this portion of the bag body 3 can be effectively protected, and the bag body 3 can be effectively prevented from being broken from this portion 90.

In particular, in the example shown in FIG. 3, the protection device 20 attaches the portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3 to the upper edge 3a of the bag body 3. It covers the area it contains. That is, the protection device 20 is formed between both ends of the main outlet installation portion 50 of the first base portion 2A and the portion facing the boundary line 91A of the second base portion 2B of the bag body 3. It covers the area nested along the upper border 3a. Likewise, the protection device 20 is formed at both ends of the main outlet installation portion 50 of the second base portion 2B and the portion facing the boundary line 91B of the first base portion 2A of the bag body 3. It covers the area nested along the upper border 3a. In other words, the area covered by the protection device 20 includes both ends of the main outlet installation portion 50 in the first substrate portion 2A and the portion facing the boundary line 91A of the second substrate portion 2B, It is nested along the upper edge (3a) of the bag body (3). In addition, the area covered by the protection device 20 includes both ends of the main outlet installation portion 50 in the second base portion 2B and the portion facing the boundary line 91B of the first base portion 2A. It is contained along the upper border (3a) of (3).

Here, the area encompassing the portion of the base portions 2A, 2B facing the border lines 91A, 91B along the upper edge 3a of the bag body 3 is the upper edge 3a of the bag body 3. It is an area having a length along the upper edge 3a of the bag body 3 and indicates an area including the border line 91A or border line 91B inside other than the end portion. In other words, the protection device 20 does not only cover the portion of the base portion 2A, 2B facing the border line 91A, 91B, but also covers both sides of this portion along the upper edge 3a of the bag body 3. It also covers the part where it is located.

According to this protection device 20, it is possible to effectively prevent parts of the bag body 3 that are prone to breakage from moving against the main outlet installation portion 50, thereby preventing damage to the bag body 3. can be prevented more effectively.

In addition, the protection device 20 shown in FIG. 3 has the portions of the bag body 3 adjacent to both ends of the main outlet installation portion 50 in a direction perpendicular to the upper edge 3a of the bag body 3. It covers the enclosed area. Here, the direction perpendicular to the upper edge 3a of the bag body 3 refers to the direction through the main outlet 40 connecting the liquid storage container 1 with the upper and lower parts of the bag body 3, that is, up and down. direction. That is, the protection device 20 includes both ends of the main outlet installation portion 50 in the first substrate portion 2A and a portion facing the boundary line 91A of the second substrate portion 2B in the vertical direction. covering the area. Similarly, the protection device 20 includes both ends of the main outlet installation portion 50 in the second base portion 2B and a portion facing the boundary line 91B of the first base portion 2A in the vertical direction. covering the area. In other words, the area covered by the protection device 20 includes both ends of the main outlet installation portion 50 in the first substrate portion 2A and the portion facing the boundary line 91A of the second substrate portion 2B, Contained in the up and down directions. In addition, the area covered by the protection device 20 includes both ends of the main outlet installation portion 50 in the second base portion 2B and the portion facing the boundary line 91B of the first base portion 2A in the vertical direction. It is contained in .

Here, the area that includes the portion of the base portions 2A, 2B facing the boundary lines 91A, 91B in the vertical direction is an area that has a length in the vertical direction, and the boundary line ( 91A) or an area containing the boundary line 91B. That is, the protection device 20 covers the portion of the base portions 2A and 2B facing the boundary lines 91A and 91B over its entire length, and also covers portions located on both sides of this portion in the vertical direction. It can be covered.

According to this protection device 20, it is possible to effectively prevent parts of the bag body 3 that are prone to breakage from moving against the main outlet installation portion 50, thereby preventing damage to the bag body 3. can be prevented more effectively.

In addition, the protection device 20 is configured to form a joint between the first base portion 2A and the second base portion 2B in at least a portion of the area along the upper edge 3a of the bag main body 3. The area included in the direction perpendicular to the upper edge 3a of 3) may be covered. As described above, the protection device 20 covers the portion 90 where the first substrate portion 2A and the second substrate portion 2B are joined near both ends of the main outlet installation portion. It is preferable that this protection device 20 covers the area encompassing the portion 90 near both ends in the vertical direction. That is, the protection device 20 preferably covers the portions near both ends of the main outlet installation portion over the entire length of the portion 90 near both ends in the vertical direction. According to this protection device 20, it is possible to effectively prevent parts of the bag body 3 that are prone to breakage from moving against the main outlet installation portion 50, thereby preventing damage to the bag body 3. can be prevented more effectively.

In addition, the positions in the bag body 3 where deformation is most likely to occur in the vertical direction are the lower edge in the vertical direction of the joint between the first base portion 2A and the second base portion 2B, and the It serves as a lower edge in the vertical direction of the joint between the first base portion 2A or the second base portion 2B and the main outlet installation portion 50. With this lower edge as the axis, the bag body 3 becomes prone to swinging relative to the main outlet installation portion 50, and damage such as breakage easily occurs along this lower edge.

In this regard, the protection device 20 is a bag body ( The side away from the main outlet body 41 in the direction perpendicular to the upper edge 3a of 3) (the inner side of the bag body 3, the side of the portion of the bag body 3 containing the liquid) It is effective to cover at least the end portion 91Ae. Similarly, the protection device 20 is provided on the bag body 3 at both ends of the main outlet installation portion 50 in the second substrate portion 2B and the portion facing the boundary line 91B of the first substrate portion 2A. The side away from the main outlet body 41 in the direction perpendicular to the upper edge 3a (the inner side of the bag body 3, the side of the portion containing the liquid of the bag body 3) , it is effective to cover at least the end portion 91Be. In addition, the protection device 20 is located at the junction of the first base portion 2A and the second base portion 2B in at least a portion of the area along the upper edge 3a of the bag body 3. The side away from the main outlet body 41 in the direction perpendicular to the upper edge 3a of (3) (the inner side of the bag body 3, the side of the portion of the bag body 3 containing the liquid) ), it is desirable to cover at least the edge portion 90e. Additionally, the protection device 20 is provided at the junction between the base portions 2A and 2B and the main outlet installation portion 50 in at least a portion of the area along the upper edge 3a of the bag body 3. The side away from the main outlet body 41 in the direction perpendicular to the upper edge 3a of (3) (the inner side of the bag body 3, the side of the portion of the bag body 3 containing the liquid) ), it is desirable to cover at least the edge portion 93. In addition, the protection device 20 extends along the first base portion 2A, and extends between both ends of the main outlet installation portion 50 in the first base portion 2A and the second base portion 2B. It is preferable to also cover a planar area adjacent to the portion facing the boundary line 91A and joining the second base portion 2B. In addition, the protection device 20 extends along the second base portion 2B, and extends between both ends of the main outlet installation portion 50 in the second base portion 2B and the first substrate portion 2A. It is preferable to also cover a planar area adjacent to the portion facing the boundary line 91B and joining the first base portion 2A. In addition, the protection device 20 extends along the first base portion 2A, and extends between both ends of the main outlet installation portion 50 in the first base portion 2A and the second base portion 2B. It is desirable to also cover the area adjacent to the portion facing the boundary line 91A and joining the main outlet installation portion 50. In addition, the protection device 20 extends along the second base portion 2B, and extends between both ends of the main outlet installation portion 50 in the second base portion 2B and the first substrate portion 2A. It is desirable to also cover the area adjacent to the portion facing the boundary line 91B and joining the main outlet installation portion 50. Additionally, the protection device 20 extends along the first base portion 2A, and forms a boundary line between both ends of the main outlet installation portion 50 in the first base portion 2A and the second base portion 2B. It is desirable to have a corner portion protruding toward the portion facing (91A). In addition, the protection device 20 extends along the second base portion 2B, and forms a boundary line between both ends of the main outlet installation portion 50 in the second base portion 2B and the first base portion 2A. It is desirable to have a corner portion protruding toward the portion facing (91B). It extends along the first base portion 2A, and faces both ends of the main outlet installation portion 50 in the first base portion 2A and the boundary line 91A of the second base portion 2B. A first plate-shaped element disposed adjacent to the portion facing the planar region joined to the second base portion 2B, and extending along the second base portion 2B, and further comprising a second base material. a planar region adjacent to both ends of the main outlet installation portion 50 in the portion 2B and a portion facing the boundary line 91B of the first substrate portion 2A and joined to the first substrate portion 2A; It is preferred to have a second plate-like element arranged facing each other. It extends along the first base portion 2A, and faces both ends of the main outlet installation portion 50 in the first base portion 2A and the boundary line 91A of the second base portion 2B. A third plate-shaped element disposed adjacent to the portion facing the area joining the main outlet installation portion 50, and extending along the second base portion 2B, and further comprising the second base portion 2B. A fourth plate-shaped element disposed adjacent to both ends of the main outlet installation portion 50 and the portion facing the boundary line 91B of the first base portion 2A and facing the area joining the main outlet installation portion 50. It is desirable to have more. In addition, it is preferable that the first plate element and the third plate element are connected in a curved manner, and the second plate element and the fourth plate element are connected in a curved manner. In addition, it is preferable that the first plate-shaped element has a flat shape and the second plate-shaped element has a flat shape.

This protection device 20 is made of, for example, polyacetal or polyethylene.

Next, the protection device 20 will be described in detail with reference to an example of the protection device 20 shown in FIGS. 3, 5A, and 5B. The protective device 20 shown in FIGS. 3, 5A, and 5B has a pair of protective devices 21A and 21B that can be connected to each other, and the pair of protective devices 21A and 21B have the same structure.

In addition, each of the protective devices 21A and 21B includes a protective device main body 22 that covers the portion near both ends of the main outlet installation portion 50 described above, and a two-pronged portion 23 that branches into two from the protective device main body 22. has The bifurcated portion 23 includes a first arm portion 23A and a second arm portion 23B that extend from the protective gear main body 22. The first arm portion 23A and the second arm portion 23B begin to extend from the end of the protective gear main body 22. The first arm portion 23A and the second arm portion 23B are spaced apart from each other as they are spaced apart from the protective gear main body 22.

And the tip of the two prongs 23 of the protective gear 21A and the distal ends of the two prongs 23 of the protective gear 21B are connected to each other, so that the two prongs 23 of the protective gear 21A and the protective gear 21B are connected to each other. The main outlet installation portion 50 is covered from the outside by the two forked portions 23. In other words, the main outlet installation portion 50 is surrounded by the two prongs 23 of the protective device 21A and the two prongs 23 of the protective device 21B.

Additionally, a locking projection 23a and a locking groove 23b are provided at the distal end of the bifurcated portion 23 of one protector 21A, respectively, along the vertical direction.

Additionally, a locking projection 23a and a locking groove 23b are provided at the tip of the bifurcated portion 23 of the other protector 21B, respectively, along the vertical direction.

In addition, the protective equipment main body 22 of each protective equipment 21A and 21B has a storage groove 25 into which the upper edge 3a of the bag main body 3 is inserted.

As described above, the bag body 3 has a hexahedral box-like shape, and the upper edge 3a of the bag body 3 extends through the central portion of the upper surface 35 of the bag body 3.

When attaching the protection device 20 to the upper edge 3a of the bag body 3, each protective device 21A, 21B is mounted from above the bag body 3 toward the upper edge 3a. In this case, the upper edge 3a of the bag main body 3 is inserted into the storage groove 25 of each protector 21A, 21B, and then the two prongs 23 of each protector 21A, 21B are connected to each other. By approaching, the engaging protrusion 23a provided on the two prongs 23 of one protector 21A is engaged with the engaging groove 23b provided on the two prongs 23 of the other protector 21B. I order it.

In this way, the protective device 20 can be obtained by connecting the protective device 21A on one side and the protective device 21B on the other side.

As shown in FIG. 3, the protective device 20, which is constructed by connecting a pair of protective devices 21A and 21B, is mounted on the upper edge 3a of the bag body 3, especially the main outlet installation portion 50. Even if a large load is applied to the portion 90 near both ends of ), this portion 90 can be effectively protected by the protection device 20.

In addition, as will be described later, in order for the liquid storage container 1 to be inserted into the external container 5 through the opening 5a (see FIG. 23), the protection device 20 is installed at both ends 3e of the upper edge 3a. If it reaches this point, it becomes difficult to insert it into the external container 5. For this reason, it is preferable that the protection device 20 does not extend to both ends 3e of the upper edge 3a, and in this form, the protection device 20 is mounted on the upper edge 3a of the bag body 3. After doing so, it becomes easy to insert into the external container (5). In addition, each protector 21A, 21B is secured from the upper edge of the bag main body 3 to the upper edge ( Since it can be mounted facing 3a), it is also possible to attach the protection device 20 through the opening 5a of the outer container 5 after inserting the liquid storage container 1 into the outer container 5. .

However, as shown in FIGS. 5A and 5B, the protective gear 21A, 21B further has a positioning portion 24 connected to at least one of the protective gear main body 22 and the bifurcated portion 23. . By contacting the main outlet 40, the positioning unit 24 positions the protection devices 21A and 21B at a predetermined position with respect to the main outlet 40. In the example shown, the positioning portion 24 is formed as a plate-shaped portion 24a extending from the protective gear main body 22.

3 and 4, the lower end of the main outlet main body 41 of the main outlet 40, in other words, the connection portion of the main outlet main body 41 to the main outlet installation portion 50, has a reduced diameter. A narrow portion 41a is formed. As shown in FIG. 4 , when the plate-shaped portion 24a is inserted into the narrow portion 41a of the main outlet 40, one protective device 21A is positioned with respect to the main outlet 40. Similarly, by inserting the plate-shaped portion 24a into the narrow portion 41a of the main outlet 40, the other protective device 21B is positioned with respect to the main outlet 40. By positioning the pair of protectors 21A, 21B with respect to the main outlet 40, the pair of protectors 21A, 21B are also positioned with respect to each other.

In the illustrated example, the plate-shaped portion 24a includes a main surface 24b in surface contact with the main outlet 40 and an end surface 24c in contact with the main outlet 40. The end surface 24c is a surface that is non-parallel to the main surface 24b. In particular, in the illustrated example, the end surface 24c is a surface perpendicular to the main surface 24b. The main surface 24b is formed as the upper surface of the plate-shaped portion 24a. The main surface 24b is in surface contact with the lower surface of the bottom part 43 of the main outlet main body 41, which will be described later, from below in the vertical direction. The end surface 24c contacts the narrow portion 41a from the horizontal direction. By contacting the main outlet body 41 with the end surface 24c, the relative position in the width direction (direction along the upper edge 3a) of the protectors 21A, 21B with respect to the main outlet 40 can be determined. You can.

On the other hand, when the main surface 24b contacts the main outlet body 41, the relative positions of the protective devices 21A and 21B with respect to the main outlet 40 in the vertical direction can be determined. When the inside of the bag body 3 swells or the pair of base parts 2A, 2B are separated from each other, the lower edge of the connection part of the pair of base parts 2A, 2B is stored in the vertical direction. A force is applied to the protective gear 21A, 21B stored in the groove 25 to lift it upward from the bag body 3. However, by the main surface 24b contacting the main outlet body 41 from below, the upward relative movement of the protective devices 21A and 21B with respect to the bag body 3 can be regulated. Thereby, the relative position of the protection device 20 with respect to the bag body 3 is maintained, making it possible to appropriately protect the bag body 3 with the protection device 20.

In the illustrated example, the plate-shaped portion 24a of the positioning portion 24 is connected to the first arm portion 23A and the second arm portion 23B of the bifurcated portion 23, respectively. That is, the first arm portion 23A and the second arm portion 23B are connected by the plate-shaped portion 24a. As a result, the first arm portion 23A and the second arm portion 23B of the bifurcated portion 23, which are easily deformed into an elongated shape, are reinforced by the plate-shaped portion 24a, and deformation is suppressed. By suppressing deformation of the first arm 23A and the second arm 23B of the bifurcated portion 23, the protectors 21A and 21B are maintained at a predetermined position with respect to the bag main body 3. This makes it possible to appropriately protect the bag main body 3 by the protection device 20. That is, the plate-shaped portion 24a of the positioning portion 24 not only exerts a positioning function for the protective devices 21A and 21B, but also functions as a reinforcement portion for the protective devices 21A and 21B.

Additionally, in the illustrated example, the plate-shaped portion 24a of the positioning portion 24 is attached to not only the first arm portion 23A and the second arm portion 23B of the bifurcated portion 23 but also the protective gear main body 22. You are connected. This positioning portion 24 can more effectively prevent deformation of the bifurcated portion 23.

In addition, the illustrated protectors 21A and 21B, as well shown in FIGS. 5A and 5B, have a portion that becomes the lower edge of the protector main body 22 and the bifurcated portion 23 in the vertical direction, It has a flange portion 23e that protrudes in a direction non-parallel to the vertical direction, typically perpendicular to the vertical direction. When the inside of the bag main body 3 swells, the pair of base portions 2A, 2B operates so as to be spaced apart from each other. At this time, the base portions 2A and 2B contact the upper and lower edges of the protective gear main body 22 and the bifurcated portion 23, and apply a force to the lower edges. The flange portion 23e reinforces the lower edge of the protective gear main body 22 and the bifurcated portion 23, where forces from the base portions 2A and 2B tend to be applied. By this flange portion 23e, deformation of the protectors 21A, 21B can be effectively suppressed, and the protectors 21A, 21B are stably fixed to the bag body 3, and the protectors 21A, 21B The bag body (3) can be stably protected.

Likewise, the illustrated protectors 21A and 21B, as well shown in FIGS. 5A and 5B, are provided at the ends in the width direction of the protector body 22 in a direction non-parallel to the width direction, typically in a widthwise direction. It has a flange portion 23f protruding in a direction perpendicular to the direction. When the inside of the bag main body 3 swells, the base portions 2A and 2B contact the ends of the protective gear main body 22 in the width direction and apply a force to these ends. The flange portion 23f reinforces the end portion of the protective gear main body 22 where force from the base portions 2A and 2B tends to be applied. By this flange portion 23f, deformation of the protectors 21A, 21B can be effectively suppressed, and the protectors 21A, 21B are stably fixed to the bag body 3, and the protectors 21A, 21B The bag body (3) can be stably protected.

In addition, the protective gear 21A, 21B described above is only an example, and various modifications are possible. As an example of a variation, another example of the protection device 20 is shown in FIGS. 5C and 5D.

In the example shown in FIGS. 5C and 5D, a chamfer 23g is formed on the lower edge of the protective gear main body 22 and the bifurcated portion 23 in the vertical direction. Similarly, a chamfer 23h is formed at an end in the width direction of the protective gear main body 22. As already explained, when the base portions 2A, 2B are spaced apart from each other due to the inside of the bag body 3 swelling, etc., the base portions 2A, 2B are formed by these chamfer portions 23g and the chamfer portions. (23h) is in contact with the prepared position. Therefore, by providing these chamfered portions 23g and 23h, it becomes possible to effectively prevent damage to the bag body 3.

Moreover, in the example shown in FIGS. 5C and 5D, the protection device 20 has one protection device 21A and the other protection device 21B. Each protective device 21A, 21B has a protective device main body 22 and a two-pronged portion 23 including a first arm portion 23A and a second arm portion 23B extending and protruding from the protective device main body 22. . The first arm portion 23A has a locking groove 23b, a locking projection 23a, and a regulating recess (regulating notch) 23d along the vertical direction at its distal end. The second arm portion 23B has a regulating projection 23c, an engaging groove 23b, and an engaging projection 23a along the vertical direction at its distal end. That is, unlike the protectors 21A and 21B shown in FIGS. 5A and 5B, the two prongs 23 of the protectors 21A and 21B shown in FIGS. 5A and 5B have a regulating protrusion 23c and a regulating concave. He has more wealth (23d).

In the protective device 20 shown in FIGS. 5C and 5D, the tip of the two prongs 23 of one protective device 21A and the distal end of the two prongs 23 of the other protective device 21B are connected. At this time, the engaging projection 23a and the engaging groove 23b are engaged, and the regulating projection 23c of the second arm portion 23B is positioned within the regulating concave portion 23d of the first arm portion 23A. . And, the regulating protrusion 23c of the second arm portion 23B located in the regulating concave portion 23d overlaps the first arm portion 23A in the vertical direction, thereby forming a first arm portion ( Movement of the second arm portion 23B of 23A) to one side in the vertical direction can be regulated. In addition, since each of the protective devices 21A and 21B has a first arm portion 23A and a second arm portion 23B, movement of the pair of protective devices 21A and 21B in both vertical directions is regulated. It will happen.

In the protection device 20 shown in FIGS. 5A and 5B, a pair of protection devices 21A and 21B are connected by a locking projection 23a and a locking groove 23b, thereby forming a pair of protective devices 21A and 21B. 21B) relative movement in the direction perpendicular to the vertical direction can be regulated. In the protection device 20 shown in FIGS. 5C and 5D, the relative movement of the pair of protection devices 21A and 21B in the vertical direction is regulated by further using the regulation protrusion 23c and the regulation recess 23d. It is also possible to do so. According to the protection device 20 shown in FIGS. 5C and 5D, relative movement of the protection device 20 with respect to the bag body 3 can be more effectively prevented, and the protection device 20 can be used to provide more stability. The bag body (3) can be protected.

<Structure of the bag body (3)>

Next, the structure of the bag body 3 of the liquid storage container 1 will be explained in detail with reference to FIGS. 8 and 9. As shown in FIGS. 8 and 9, a first base portion 2A, a second base portion 2B, and a gadget portion 2C are prepared, of which, first, the first base portion 2A and The second substrate portion 2B is overlapped. Next, a pair of gadget parts 2C having a two-stage folded cut part 2C1 are inserted from both sides between the first base part 2A and the second base part 2B, and are joined to form a joint part 10. ) to obtain the pouch body (3). And the liquid storage container 1 is disposed on the bag body 3 and the upper edge 3a of the bag body 3 and is heat-sealed between the first base portion 2A and the second base portion 2B. It is equipped with a main outlet (40).

Here, the “first base portion 2A” and the “second base portion 2B” may be made of separate films and may be overlapped to produce the bag body 3, or may be made by folding one film. A bag body having one base portion (2A) and a second base portion (2B) may be manufactured.

In addition, the first base material 2A and the second base material 2B are both made of the same material and have a three-layer structure of outer layer/middle layer/inner layer arranged in this order from the outside to the inside, for example. Among these, the outer layer has a layer structure of stretched nylon (thickness 15㎛)/polyethylene (thickness 25㎛)/polyethylene (thickness 70㎛).

Additionally, the middle layer is made of polyethylene (thickness 60㎛), and the inner layer is made of polyethylene (thickness 60㎛).

As described above, the liquid storage container 1 is disposed on the bag body 3 and the upper edge 3a of the bag body 3, between the first base portion 2A and the second base portion 2B. It is provided with a main outlet 40 that is heat-sealed to the main outlet 40, but in this case, the first base member 2A and the second base member 2B overlap, and the upper edge excluding the installation area of the main outlet 40 The periphery including (3a) is joined at a heating temperature of about 175° C., for example.

Next, the main outlet 40 is disposed within the installation area of the main outlet 40 among the upper edge 3a of the bag body 3, the main outlet installation portion 50 of the main outlet 40, and the first substrate. The portion 2A and the second base portion 2B are bonded at a heating temperature of about 150° C. (first stage bonding). In this first end bonding, the main outlet mounting portion 50 and the first base portion 2A and the second substrate portion 2B are bonded, as well as portions near both ends of the main outlet mounting portion 50 ( In 90), the first base portion 2A and the second base portion 2B are bonded.

Next, the main outlet installation portion 50 of the main outlet 40, the first substrate portion 2A, and the second substrate portion 2B are bonded at a heating temperature of about 160° C. (second stage bonding).

In this way, the main outlet installation portion 50 of the main outlet 40, the first substrate portion 2A, and the second substrate portion 2B are bonded at low temperature (heated to about 150°C) and high temperature bonded (heated to about 160°C). By bonding through a two-step bonding process consisting of heating, it is possible to reduce the occurrence of excessive heating of the portion 90 near both ends of the main outlet installation portion 50, resulting in softening or a decrease in strength.

In this case, the bag body 3 has an upper edge 3a, a bottom edge 3b, and a side edge 3c, and has a rectangular shape when viewed from the side of the first base portion 2A (Figure 8).

In addition, the joint portion 10 is an upper edge joint portion 10a formed by joining the open upper portion 3A of the bag body 3 and a bottom edge joint portion formed by joining the open bottom portion 3B of the bag body 3. We have (10b). Additionally, the first base portion 2A and the pair of gadget portions 2C are joined to form a side edge joint portion 10C, and between the second base portion 2B and the pair of gadget portions 2C are also joined. They are joined to form a side edge joint portion 10C. In addition, in the embodiment shown in FIGS. 8 and 9, in order to explain the embodiment in which the first base portion 2A and the second base portion 2B are each made of separate films, the bottom portion of the bag main body 3 ( 3B) is open, but when the bag body 3 having the first base portion 2A and the second base portion 2B is manufactured by folding one film, the bottom portion of the bag body 3 ( 3B) may be left unopened and the folded portion may be joined to form the bottom edge joint portion 10b.

Among these, the upper edge joint portion 10a is an upper edge body joint portion 10a1 formed by joining the first substrate portion 2A and the second substrate portion 2B, and the first substrate portion 2A and the gadget portion 2C. and an upper edge gadget joint portion 10a2 formed by joining the second base portion 2B and the gadget portion 2C.

In addition, the bottom edge joint 10b includes a bottom edge body joint 10b1 formed by joining the first base portion 2A and the second base portion 2B, the first base portion 2A and the gadget portion 2C, and It has a bottom edge gadget joint portion 10b2 formed by joining the second base portion 2B and the gadget portion 2C.

In this way, a gadget-shaped liquid storage container 1 is formed by the bag body 3 and the main outlet 40 provided on the upper edge 3a of the bag body 3.

The gadget-like liquid storage container 1 with such a structure is folded compactly as follows and inserted through the opening 5a into the external container 5 having a large hexahedral box-like shape described later (see Fig. 23). ).

Next, the folded form of the liquid storage container 1 will be described with reference to FIGS. 10 to 19.

First, as shown in Fig. 10, a gadget-shaped liquid storage container 1 is prepared.

Next, as shown in FIG. 11, a rectangular bottom surface 30 is formed at the bottom 3B of the bag body 3.

In this case, first lift the bottom portion 3B of the bag body 3, and bend the first base portion 2A side of the bottom portion 3B of the bag body 3 inward through the bend line 2A1, Similarly, the side of the second base portion 2B is bent by folding the bending line 2B1 inward. In this way, a rectangular bottom surface 30 is formed on the bottom 3B of the bag body 3, and this bottom surface 30 includes the bottom edge joint portion 10b described above.

Next, on this side of the rectangular bottom 30, the gadget portion 2C is folded into a triangular shape, thereby forming a triangular triangular portion 2C3.

In Figure 11, the bottom surface 30 includes a first base portion 2A and a second base portion 2B, and the first base portion 2A is a bottom edge joint portion 10b of the rectangular bottom surface 30. ), and the second base portion 2B is located below the bottom edge joint 10b of the rectangular bottom surface 30.

Additionally, on the back side of the first base portion 2A and the second base portion 2B constituting the bottom surface 30 of the bag main body, a folded folded body is formed between the first base portion 2A and the second base portion 2B. The border 2C2 of the gadget portion 2C is shown (see Fig. 11).

Next, as shown in FIG. 12, along the bottom edge joint portion 10b on the bottom surface 30, at least among the bottom edge joint portions 10b, between the first base portion 2A and the gadget portion 2C and the second A first fixing tape 31 is provided to secure the bottom edge gadget joint portions 10b2 between the base portion 2B and the gadget portion 2C. However, this first fixing tape 31 may extend along the bottom edge joint portion 10b from one end of the bottom edge joint portion 10b to the other end of the bottom surface 30.

By fixing the bottom edge gadget joint portion 10b2 with the first fixing tape 31 in this way, the rectangular shape of the rectangular bottom surface 30 can be reliably maintained.

Next, the bottom surface 30 and a pair of gadget parts 2C disposed on both sides of the bottom surface 30 are fixed with the third fixing tape 32, and the bottom surface 30 and the bottom surface 30 are fixed together. Firmly fix between a pair of gadget parts (2C) arranged on both sides. As described above, the gadget portion 2C is folded onto the rear surface of the first base portion 2A and the second substrate portion 2B constituting the bottom surface 30 to form a triangular portion 2C3. 3 The bag body 3 of the liquid storage container 1 is inflated by fixing between the bottom surface 30 and the pair of gadget parts 2C arranged on both sides of the bottom surface 30 with the fixing tape 32. Later, when the inside of the bag body 3 is filled with liquid, the liquid is prevented from entering the triangular shaped portion 2C3 formed by folding the gadget portion 2C.

Next, the liquid storage container 1 is turned over and the bottom surface 30 is brought to the back (see Fig. 13).

Next, as shown in FIG. 14, a rectangular upper surface 35 is formed on the upper part 3A of the bag body 3.

In this case, first, the upper part 3A of the bag main body 3 is lifted and the first base portion 2A side of the upper part 3A of the bag main body 3 is bent inward through the bend line 2A2, and similarly. The second base portion 2B side is bent by folding the bending line 2B2 inward. In this way, a rectangular upper surface 35 is formed on the upper part 3A of the bag body 3, and this upper surface 35 includes the upper edge joint portion 10a described above.

Next, on this side of the rectangular upper surface 35, the gadget portion 2C is folded into a triangular shape, thereby forming a triangular triangular portion 2C3.

In FIG. 14, the upper surface 35 includes a first base portion 2A and a second substrate portion 2B, and the first base portion 2A is an upper edge joint portion 10a of the rectangular upper surface 35. is located on the upper side of the paper, and the second base portion 2B is located on the lower side of the upper edge joint portion 10a of the rectangular upper surface 35.

Additionally, on the back side of the first base portion 2A and the second base portion 2B constituting the upper surface 35 of the bag body, a gadget is folded between the first base portion 2A and the second base portion 2B. The border 2C2 of portion 2C is shown (see Fig. 14).

Next, as shown in FIG. 15, along the upper edge joint portion 10a on the upper surface 35, at least among the upper edge joint portion 10a, between the first base portion 2A and the gadget portion 2C and the second A second fixing tape 36 is provided to secure the upper edge gadget joint portions 10a2 between the base portion 2B and the gadget portion 2C. However, this second fixing tape 36 may extend along the upper edge joint portion 10a from one end of the upper edge joint portion 10a to the other end of the upper surface 35.

In this way, by fixing the upper edge gadget joint portion 10a2 with the second fixing tape 36, the rectangular shape of the rectangular upper surface 35 can be reliably maintained.

Next, the upper surface 35 and a pair of gadget parts 2C disposed on both sides of the upper surface 35 are fixed with the fourth fixing tape 37, and the upper surface 35 and the pair of gadget parts 2C are fixed to each other. Firmly fix between a pair of gadget parts (2C) arranged on both sides. As described above, between the first base portion 2A and the second base portion 2B constituting the upper surface 35, the gadget portion 2C is folded to form a triangular portion 2C3, but the fourth After inflating the bag body 3 of the liquid storage container 1 by fixing between the upper surface 35 and the pair of gadget parts 2C arranged on both sides of the upper surface 35 with the fixing tape 37. When filling the inside of the bag body 3 with liquid, the liquid is prevented from entering the triangular shaped portion 2C3 formed by folding the gadget portion 2C.

In this way, by fixing the rectangular bottom 30 of the bag body 3 with the first fixing tape 31 and the third fixing tape 32, the bottom 30 can reliably maintain its rectangular shape. . Additionally, by fixing the rectangular upper surface 35 with the second fixing tape 36 and the fourth fixing tape 37, the upper surface 35 can reliably maintain its rectangular shape. In addition, the first fixing tape 31, the second fixing tape 36, the third fixing tape 32, and the fourth fixing tape 37 are not limited to these, and adhesive or adhesive may be used instead of the tape. do.

For this reason, as will be described later, when the liquid storage container 1 is compactly folded and inserted into the external container 5 through the opening 5a of the hexahedral box-shaped external container 5, the liquid storage container 1 is inflated. , the outer shape of the liquid storage container 1 can be inflated to match the inner shape of the hexahedral box-shaped external container 5. In addition, the external container 5 is not limited to a hexahedral box-shaped external container, and a cylindrical or polyhedral box-shaped external container other than a hexahedron may be used.

Next, as shown in FIG. 16, the liquid storage container 1 overlaps the upper edge joint portion 10a and the bottom edge joint portion 10b, and folds the upper edge joint portion 10a and the bottom edge joint portion 10b. Fold it in two steps along a line.

Thereafter, the two-stage folded liquid storage container 1 is folded into a corrugated box shape along a plurality of longitudinal bending lines 15 (see FIGS. 17 and 18). The liquid storage container 1 does not necessarily need to be folded into a corrugated box, but when the liquid storage container 1 is inserted into the outer container 5 by folding the liquid storage container 1 into a corrugated box, this outer container It can be easily unfolded within (5). At this time, when the liquid storage container 1 is folded along the center line in the width direction perpendicular to the straight line passing through the main outlet 40 connecting the upper and lower parts of the bag body 3, there are vertical bend lines on both left and right sides, respectively. According to (15), it is more preferable that the liquid storage container is folded into a left-right symmetric corrugated box. That is, as shown in FIG. 18, longitudinal bending lines formed on both sides of the center line in the width direction perpendicular to the straight line passing through the main outlet 40 connecting the upper and lower parts of the bag body 3. By folding the liquid storage container (1) so that the folding directions of the peak and valley folds of (15) are symmetrical to the same direction, when the liquid storage container (1) is inserted into the outer container (5), it is much easier to fit within the outer container (5). It can be unfolded easily.

Folding in the vertical direction is not limited to folding at the center line, and if the liquid storage container 1 is shaped to allow insertion into the outer container 5 from the opening 5a of the outer container 5, folding on the corrugated box is possible. It doesn't have to be.

Next, as shown in FIG. 19, the liquid storage container 1 folded into a corrugated box shape along the longitudinal bending line 15 has a plurality of devices provided at the top and bottom to maintain this folded shape, for example 2. It is fixed by two shape prosthesis parts 17 and 18 and its shape is maintained.

The shape retaining portions 17 and 18 maintain the folded shape of the liquid storage container 1, and as will be described later, gas is supplied into the liquid storage container 1 from the main outlet 40 to form the liquid storage container 1. ) is inflated, the shape retainers 17 and 18 are broken and separated from the liquid storage container 1. In this case, when gas is supplied into the liquid storage container 1 from the main outlet 40, the upper portion of the liquid storage container 1 swells first and the upper shape retaining portion 17 is fractured, causing the liquid storage container 1 to swell. The gas is then sent to the lower part of the liquid storage container 1, causing this lower part to swell, and the lower shape retaining portion 18 is broken and separated from the liquid storage container 1. These shape-retaining parts 17 and 18 may be tape-shaped, but may be made of a rubber-like strip-shaped tape or may be made of an adhesive. Additionally, tapes can be detachable or breakable. Additionally, the number of shape-retaining parts 17 and 18 may be one or two or more. In this way, the box-shaped bag body 3 can be obtained within the box-shaped external container 5.

<Structure of the main exit>

Next, the main outlet 40 of the liquid storage container 1 will be described in detail. As shown in FIG. 20, the main outlet 40 is connected to the main outlet installation part 50 heat-sealed to the upper edge 3a of the bag body 3 and the main outlet installation part 50 to form a bag. It has a main outlet body 41 protruding outward from the main body 3, and a main outlet flange 42 is provided at the upper end of the main outlet body 41. Additionally, the main outlet 40 is heat-sealed between the first base member 2A and the second base member 2B at the main outlet installation portion 50.

The main outlet installation portion 50 of the main outlet 40 is formed in a cylindrical shape and has a through hole 45. For example, as shown in FIG. 2, the main outlet installation portion 50 is formed in a cylindrical shape having an external shape formed by chamfering an obtuse angle of a diamond. That is, the dimensions of the main outlet installation portion 50 along the direction perpendicular to both the width direction and the vertical direction of the bag main body 3 are the center of the main outlet 40 along the width direction of the bag main body 3. As it moves away from and approaches both ends, it gradually becomes smaller. In other words, the main outlet installation portion 50 has a central portion 51 having a cylindrical outer shape, and a thin portion 52 located on both sides of the central portion 51 along the width direction of the bag body 3. there is. 50, which has this external shape, is surrounded by the two prongs 23 of the pair of protectors 21A and 21B shown in FIGS. 5A to 5D, leaving a small gap. In addition, when the main outlet installation portion 50 formed in a simple cylindrical shape is heat-sealed between the base portions 2A and 2B, two pieces surrounded by the base portions 2A and 2B and the ends of the main outlet installation portion 50 Gaps may form in the area, which can easily result in poor sealing. By providing the thin portion 52, it is possible to cope with this problem and effectively prevent a gap from being formed in the two areas surrounded by the base portions 2A and 2B and the ends of the main outlet installation portion 50.

Additionally, the main outlet body 41 of the main outlet 40 is made of a cylindrical body whose cross-sectional shape is approximately U-shaped, and a main outlet flange 42 is provided at the upper periphery thereof. An opening 44 is formed in the bottom 43 of the main outlet body 41. Through this opening 44, ventilation can be ensured between the liquid storage container 1 and the external container 5, which will be described later, and when the liquid contents are pumped out during use, the liquid storage container passes through this opening 44. By enclosing a gas between (1) and the external container (5), the liquid content inside the liquid storage container (1) can be smoothly pumped out by applying pressure from the outside of the liquid storage container (1).

Additionally, the constriction portion 41a described above is formed below the bottom portion 43. The main surface 24b of the positioning portion 24 of the protection device 20 comes into contact with the back surface of the bottom portion 43.

The main outlet flange 42 of the main outlet 40 is mounted on the opening 5a formed in the external container 5 via a holder 80 described later, and the liquid storage container 1 is connected to the external container 5. supported within. Additionally, if it is possible to mount the main outlet 40 directly to the opening 5a, the holder 80 does not necessarily need to be provided.

The main outlet 40 is preferably manufactured by injection molding. The resin used for this is not particularly limited as long as it is an injection moldable resin, but is bonded to the resin constituting the inner surfaces of the first base portion 2A and the second base portion 2B of the bag body 3 by heat fusion. Therefore, it is necessary to appropriately select the resin constituting the inner surfaces of the first substrate portion 2A and the second substrate portion 2B, but it is usually made of high-density polyethylene that is rigid even at high temperatures and is difficult to embrittle at low temperatures. This is suitable.

<Structure of maintenance area>

However, as described above, the main outlet flange 42 of the main outlet 40 is mounted on the opening 5a of the external container 5 via the holder 80. This holder 80 is interposed between the opening 5a and the main outlet 40, so that even if the shape of the opening 5a of the external container 5 is somewhat larger than the outer shape of the main outlet flange 42, the opening 5a ) functions to securely install the main outlet (40).

This holder 80 is explained in more detail in FIGS. 21 and 22.

The holder 80 has an outer flange 81 that engages the opening 5a of the outer container 5, and is connected to the outer flange 81 via a connection step 83 to provide a main outlet 40. It has an inner flange 82 that engages with the main outlet flange 42, and is formed as a whole in a ring shape with an opening.

The main outlet 40 of the liquid storage container 1 is mounted on the holder 80 configured as described above.

<How to attach the liquid storage container>

The liquid storage container 1 is inserted into the external container 5 from the opening 5a of the external container 5. In this case, the external container 5 is made of a large container made of metal or synthetic resin, has a hexahedral box shape, and has a large inner capacity of, for example, about 1000 l.

Next, the protection device 20 is mounted on the upper edge 3a of the bag body 3 with the main outlet 40 of the liquid storage container 1 protruding from the outside of the opening 5a.

In this case, as described above, first, the protective device main body 22 of the pair of protective devices 21A, 21B of the protective device touches the upper rim 3a from above with respect to the upper rim 3a of the bag main body 3. Approaching towards it, the upper edge 3a enters the storage groove 25 of the protective gear main body 22. Next, the two prongs 23 and 23 of the pair of protectors 21A and 21B are connected to each other, and the main outlet installation portion 50 is surrounded by these two prongs 23 and 23. In this way, the protective device 20 consisting of a pair of protective devices 21A and 21B can be mounted on the upper edge 3a of the bag main body 3. In addition, before inserting the liquid storage container 1 into the external container 5, the protection device 20 is attached to the upper edge 3a of the bag body 3, and after installation, the liquid storage container 1 is placed on the external container 5. It may be inserted into the container (5).

Next, with the main outlet 40 of the liquid storage container 1 protruding from the outside of the opening 5a, the holder 80 is attached to the main outlet 40.

In addition, in the above embodiment, an example has been shown in which the holder 80 is installed at the main outlet 40 after the liquid storage container 1 is inserted into the external container 5, but the main outlet 40 is not limited to this. After installing the holder 80 at the outlet 40, the liquid storage container 1 may be inserted into the external container 5. Additionally, the holder 80 does not necessarily need to be used.

Next, a combination 80A of the main outlet and the holder having the main outlet 40 and the holder 80 is mounted on the opening 5a of the external container 5. In this case, the outer flange 81 of the holder 80 is engaged with the opening 5a of the external container 5.

<Modified example of protection device 20>

Next, a modified example of the protection device 20 will be described with reference to FIG. 6A.

In the above embodiment, the protection device 20 is shown as an example having a pair of protection devices 21A and 21B that can be connected to each other, but it is not limited to this and, as shown in FIG. 6A, a pair of protection devices 21A and 21B are separated from each other. Devices 20 and 20 may be provided.

Each protection device 20, 20 includes a storage groove 25 into which the upper edge 3a of the bag body 3 enters, and each protection device 20, 20 is not connected to each other but is separated. Additionally, each protection device 20, 20 is connected to the main outlet 40 via a connector 25A. Additionally, each protection device 20, 20 covers the portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3. In addition, each protection device 20, 20 covers a portion 90 near both ends of the main outlet installation portion 50 where the first substrate portion 2A and the second substrate portion 2B are joined. .

As described above, the portion adjacent to both ends of the main outlet mounting portion 50 in the bag body 3 and the portion 90 near both ends of the main outlet mounting portion 50 are subject to a large load when filling the contents. Although this is the part that is applied, this part (90) can be effectively protected by covering this part (90) with each of the protection devices (20, 20). In addition, since each protection device 20, 20 is connected to the main outlet 40 via a connector 25A, the liquid storage container 1 is inserted into the external container 5 to insert the liquid storage container 1 into the external container 5. ) Even when it is provided for transport in a state filled with liquid, each protection device 20, 20 is suppressed from being separated from the upper edge 3a of the bag main body 3 due to vibration during transport, and the bag main body 3 (3) A portion adjacent to both ends of the main outlet installation portion 50 or a portion near both ends of the main outlet installation portion 50 where the first substrate portion 2A and the second substrate portion 2B are joined. (90) can be effectively protected. In addition, in the above embodiment, each of the protection devices 20, 20 has shown an example in which each is connected to the main outlet 40 via a connector 25A, but the present invention is not limited to this, and each of the protection devices 20, Each 20 may be connected to the main outlet 40 by being formed integrally with the main outlet 40 without intervening the connector 25A.

In addition, in Figure 6a, each protection device 20, 20 mounted on the upper edge 3a of the bag main body 3 is located in the central part of the upper edge 3a, and both ends 3e of the upper edge 3a. ) has not been reached.

Additionally, as shown in FIG. 6B, a pair of protection devices 20 and 20 that are separated from each other may be provided. Each protection device 20, 20 includes a storage groove 25 into which the upper edge 3a of the bag body 3 enters, and each protection device 20, 20 is not connected to each other but is separated. Additionally, each protection device 20, 20 is not connected to the main outlet 40. For this reason, each protection device (20, 20) can be easily mounted on the upper edge (3a) of the bag body (3), and the main outlet of the bag body (3) is installed by these protection devices (20, 20). Effectively protects the portion adjacent to both ends of the portion 50 and the portion 90 where the first substrate portion 2A and the second substrate portion 2B are joined near both ends of the main outlet installation portion 50. can do. Furthermore, according to this aspect, each of the protection devices 20, 20 can be mounted on the upper edge 3a of the bag main body 3 simply by approaching it from above toward the upper edge 3a, so that the exterior After inserting the liquid storage container 1 into the container 5, it is easy to attach the respective protection devices 20 and 20 through the opening 5a of the outer container 5.

In addition, as another form of the aspect shown in FIG. 6B, as shown in FIGS. 6C and 6D, a pair of protection devices 20 and 20 that are separated from each other are made of cellophane or silicone coated with adhesive or adhesive 95. By using flexible resin such as rubber or rubber, the first base material is formed in the portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3 or in the vicinity of both ends of the main outlet installation portion 50. The portion 90 where the portion 2A and the second base portion 2B are joined may be covered. Each protection device 20, 20 is fitted with the upper edge 3a of the bag body 3 with the side coated with the adhesive or adhesive 95 facing the liquid storage container 1, and the first base portion ( By crossing from 2A) to the second substrate portion 2B, the portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3 or the first substrate portion 2A and the second substrate portion 2B covers the joined portion (90). By this protection device 20, 20, the first base portion 2A is removed from the portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3 or near both ends of the main outlet installation portion 50. ) and the second base portion 2B can be effectively protected (90).

In addition, as shown in FIG. 7A, when the holder 80 is used in the box-shaped outer container 5, the holder 80 includes two protection devices 20 and 20 that are separated from each other. You may install . According to this aspect, each protection device 20, 20 is connected to the holder 80 via a connector 85, and when the holder 80 is mounted on the main outlet 40, each The protection device 20, 20 can be mounted on the upper border 3a of the bag body 3. According to the embodiment shown in FIG. 7A, the protection devices 20, 20 are used in the portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3 or in the vicinity of both ends of the main outlet installation portion 50. The portion 90 where the first base portion 2A and the second base portion 2B are joined can be effectively protected, and the liquid storage container 1 is inserted into the external container 5 to create a liquid storage container. (1) Even when the bag is transported with liquid inside, the protection devices (20, 20) are prevented from being separated from the upper edge (3a) of the bag body (3) due to vibration during transport, The portion 90 near both ends of the main outlet installation portion 50 can be effectively protected. In addition, in the above embodiment, each of the protection devices 20 and 20 has been shown as an example in which it is connected to the holder 80 via a connector 85. However, this is not limited to this, and each of the protection devices 20 and 20 ) may be connected to the holder 80 by being molded integrally with the holder 80 without the connector 85 interposed therebetween.

Furthermore, in the above embodiment, an example has been shown in which the liquid storage container 1 has a gadget-shaped bag body 3, but this is not limited to this, and as shown in FIG. 7B, the liquid storage container 1 has a gadget portion ( A bag body in which the first base portion (2A) and the second base portion (2B) are overlapped and the upper edge (3a), bottom edge (3b), and side edge (3c) are joined without providing 2C). 3) You may have it. The upper edge 3a of the first base portion 2A and the second substrate portion 2B are joined to form an upper edge joint portion 10a, and the upper edge joint portion 10a is formed, and the upper edge 3a of the first base portion 2A and the second substrate portion 2B are joined. The bottom edge 3b is joined to form the bottom edge joint portion 10b, and the side edges 3c of the first base portion 2A and the second base portion 2B are bonded to form the side edge joint portion 10c. It is done. Additionally, the main outlet 40 is installed on the upper edge 3a of the bag body 3, and the protection device 20 is installed on the upper edge 3a of the bag body 3. The protection device 20 includes a first base portion 2A and a second portion adjacent to both ends of the main outlet installation portion 50 in the bag body 3 or near both ends of the main outlet installation portion 50. The base portion 2B covers the joined portion 90.

<Example showing the effect of the protection device 20>

Next, the effect of the protection device 20 will be explained using specific examples.

In this example, a liquid storage container 1 having a main outlet 40 and a bag body 3 with a width of 400 mm x a height of 200 mm x a length of 300 mm was prepared as shown in Figs. 1 to 5b.

In this case, two liquid storage containers (1) were prepared, in which a protection device (20) was also mounted on the upper edge (3a) of the bag body (3).

Next, water was filled into the bag body 3 from the main outlet 40, and the main outlet 40 was sealed with a cover (not shown).

After that, a break test was conducted in which the main outlet 40 was sequentially rotated to the right and left with respect to the bag body 3, and rotation was stopped at the point where the bag body 3 broke.

In this case, a total of 17 L of water was filled in the bag body 3.

The results of the fracture test are shown in Figure 24. As shown in Fig. 24, in the two liquid storage containers 1 equipped with the protection device 20, the bag body 3 was not broken until the main outlet 40 was rotated 500 times ( OK).

Additionally, in this embodiment, in each of the liquid storage containers 1, a protrusion 92 made of synthetic resin, which serves as the starting point of fracture, was formed on the bag body 3.

Meanwhile, three liquid storage containers 1 as comparative examples were prepared without the protection device 20 attached to the upper edge 3a of the bag body 3, and a break test was performed on each liquid storage container 1. It was carried out.

In this case, a total of 17 L of water was filled into the bag body 3.

The results of the fracture test are shown in Figure 24. As shown in Fig. 24, in the case of the bag body 3 without the protrusion 92 made of synthetic resin, the bag body 3 did not break until the main outlet 40 was rotated 200 times (OK). . However, in the case of the bag body 3 having the projections 92 made of synthetic resin, the bag body 3 was broken by rotating the main outlet 40 100 or 150 times (NG).

Claims (22)

A bag body having a first base portion and a second base portion,
Equipped with a main outlet installed on an edge of the bag body,
The main outlet has a main outlet main body and a main outlet installation part joined to the bag main body,
In the rim of the bag body where the main outlet is installed, the main outlet installation portion is joined to the first base material and the second base material, and the main outlet is installed in the rim of the bag body where the main outlet is installed. The first substrate portion and the second substrate portion are bonded to each other in areas other than the portion,
At least a portion facing a boundary line between both ends of the main outlet installation portion in the first substrate portion and the second substrate portion, and a portion facing a boundary line between both ends of the main outlet installation portion in the second substrate portion and the first substrate portion. A protective device is provided to cover the
The protective device has a pair of separable protective devices in a direction along the edge,
The protection device extends along the first base portion, and is adjacent to a portion facing a boundary line between both ends of the main outlet installation portion in the first base portion and the second base portion, and is adjacent to the second base portion. It also covers the surface-shaped area to be joined,
The protection device extends along the second base portion, and is adjacent to a portion of the second base portion facing a boundary line between both ends of the main outlet installation portion and the first base portion, and is adjacent to the first base portion. It also covers the surface-shaped area to be joined,
The protection device extends along the first base portion, and is adjacent to a portion of the first base portion facing a boundary line between both ends of the main outlet installation portion and the second substrate portion, and includes the main outlet installation portion and the second base portion. It also covers the joining area,
The protection device extends along the second base portion, and is adjacent to a portion of the second base portion that faces a boundary line between both ends of the main outlet installation portion and the first substrate portion, and includes the main outlet installation portion and the main outlet installation portion. A liquid storage container that also covers the joining area. The method of claim 1, wherein the protection device extends along the first base portion, and has edges protruding toward a portion facing a boundary line between both ends of the main outlet installation portion of the first base portion and a boundary line of the second substrate portion. With wealth,
The protection device extends along the second base portion and has corner portions protruding toward a portion facing a boundary line of the first base portion and both ends of the main outlet installation portion in the second base portion. . A bag body having a first base portion and a second base portion,
Equipped with a main outlet installed on an edge of the bag body,
The main outlet has a main outlet main body and a main outlet installation part joined to the bag main body,
In the rim of the bag body where the main outlet is installed, the main outlet installation portion is joined to the first base material and the second base material, and the main outlet is installed in the rim of the bag body where the main outlet is installed. The first substrate portion and the second substrate portion are bonded to each other in areas other than the portion,
At least a portion facing a boundary line between both ends of the main outlet installation portion in the first substrate portion and the second substrate portion, and a portion facing a boundary line between both ends of the main outlet installation portion in the second substrate portion and the first substrate portion. A protective device is provided to cover the
The protective device has a pair of separable protective devices in a direction along the edge,
The protection device extends along the first base portion, and is adjacent to a portion facing a boundary line between both ends of the main outlet installation portion in the first base portion and the second base portion, and is adjacent to the second base portion. It also covers the surface-shaped area to be joined,
The protection device extends along the second base portion, and is adjacent to a portion of the second base portion facing a boundary line between both ends of the main outlet installation portion and the first base portion, and is adjacent to the first base portion. It also covers the surface-shaped area to be joined,
The protective device is,
The shape of the surface extending along the first base portion and joining the second base portion adjacent to a portion facing a boundary line between both ends of the main outlet installation portion in the first substrate portion and the second substrate portion. A first plate-shaped element disposed facing the area of,
The shape of the surface extending along the second base portion and joining the first base portion adjacent to a portion facing the boundary line of the first substrate portion and both ends of the main outlet installation portion in the second substrate portion. A liquid storage container having a second plate-like element disposed facing the area of . The method of claim 3, wherein the protective device,
It extends along the first base portion, and is adjacent to a portion of the first base portion that faces a boundary line between both ends of the main outlet installation portion and the second substrate portion, and faces a region that joins the main outlet installation portion. A third plate element arranged, and
It extends along the second base portion, and is adjacent to a portion of the second base portion that faces a boundary line between both ends of the main outlet installation portion and the first substrate portion, and faces a region that joins the main outlet installation portion. A liquid storage container further comprising a fourth plate-shaped element disposed. The method of claim 4, wherein the first plate-shaped element and the third plate-shaped element are connected so as to be bent,
A liquid storage container, wherein the second plate element and the fourth plate element are bent and connected. The liquid storage container according to claim 3, wherein the first plate-shaped element is flat and the second plate-shaped element is flat. The liquid storage container according to claim 1 or 3, wherein the protection device includes a storage groove into which the edge of the bag body where the main outlet is installed enters. The method of claim 1 or 3, wherein the pair of protective devices can be connected to each other,
Each protective device has a protective device main body including a storage groove into which the edge of the bag main body provided with the main outlet is inserted. The method according to claim 8, wherein each protective device has a protective device main body covering a joint portion of the first base portion and the second base portion, and a two-pronged portion branching into two from the protective device main body,
A liquid storage container wherein the tip of the two prongs of one protective device and the distal end of the two prongs of the other protective device are connected to each other, and the pair of protective devices surrounds the main outlet installation portion. The liquid storage device according to claim 9, wherein each protective device further has a positioning portion that is connected to at least one of the protective device main body and the two branches and contacts the main outlet to position the protective device with respect to the main outlet. courage. The liquid storage container according to claim 10, wherein the positioning portion includes a main surface in contact with the main outlet, and a plate-shaped part that contacts the main outlet and has an end surface that is non-parallel to the main outlet. The liquid storage container according to claim 10, wherein the positioning portion is connected to a first arm portion and a second arm portion forming the bifurcated portion. The liquid storage container according to claim 9, wherein the pair of protective devices have the same structure. 4. A liquid storage container according to claim 1 or 3, wherein the protection device is connected to the main outlet. The liquid storage container according to claim 1, wherein, in the protection device, an area covering the edge of the bag body where the main outlet is installed does not extend to both ends of the edge of the bag body. The liquid storage container according to claim 1 or 3,
A combination of a liquid storage container and an external container, comprising an external container that houses the liquid storage container and has an opening on which the main outlet is mounted. The combination of a liquid storage container and an external container according to claim 16, wherein the liquid content is stored in the bag body of the liquid storage container. The liquid storage container according to claim 1 or 3,
Provided with a retainer mounted on the main outlet body,
A combination of a liquid storage container and a holder, wherein the protection device is connected to the holder. A bag body having a first base portion and a second base portion, wherein the first base portion and the second substrate portion are joined at an edge;
disposed between a main outlet body protruding from the edge of the bag body and the first base member and the second base member in a region other than the area where the first base member and the second base member are joined; A protection device installed in a liquid storage container having a main outlet having a main outlet installation part joined to the first base member and the second base member,
The protective device has a pair of separable protective devices in a direction along the edge,
A portion facing a boundary line between both ends of the main outlet installation portion of the first substrate portion and the second substrate portion,
A portion of the second base portion facing a boundary line between both ends of the main outlet installation portion and the first base portion;
It extends along the first substrate, and is adjacent to a portion facing the boundary line of the second substrate and both ends of the main outlet installation portion in the first substrate, and has a surface shape that joins the second substrate. area,
It extends along the second base portion, and is adjacent to a portion facing the boundary line of the first base portion and both ends of the main outlet installation portion in the second substrate portion, and has a surface shape that joins the first base portion. covering the area,
The protection device extends along the first base portion, and is adjacent to a portion of the first base portion facing a boundary line between both ends of the main outlet installation portion and the second substrate portion, and includes the main outlet installation portion and the second base portion. It also covers the joining area,
The protection device extends along the second base portion, and is adjacent to a portion of the second base portion that faces a boundary line between both ends of the main outlet installation portion and the first substrate portion, and includes the main outlet installation portion and the main outlet installation portion. A protective device that also covers the joining area. A bag body having a first base portion and a second base portion, wherein the first base portion and the second substrate portion are joined at an edge;
disposed between a main outlet body protruding from the edge of the bag body and the first base member and the second base member in a region other than the area where the first base member and the second base member are joined; A protection device installed in a liquid storage container having a main outlet having a main outlet installation part joined to the first base member and the second base member,
The protective device has a pair of separable protective devices in a direction along the edge,
A portion facing a boundary line between both ends of the main outlet installation portion of the first substrate portion and the second substrate portion,
A portion of the second base portion facing a boundary line between both ends of the main outlet installation portion and the first base portion;
It extends along the first substrate, and is adjacent to a portion facing the boundary line of the second substrate and both ends of the main outlet installation portion in the first substrate, and has a surface shape that joins the second substrate. area,
It extends along the second base portion, and is adjacent to a portion facing the boundary line of the first base portion and both ends of the main outlet installation portion in the second substrate portion, and has a surface shape that joins the first base portion. covering the area,
The protective device is,
The shape of the surface extending along the first base portion and joining the second base portion adjacent to a portion facing a boundary line between both ends of the main outlet installation portion in the first substrate portion and the second substrate portion. A first plate-shaped element disposed facing the area of,
The shape of the surface extending along the second base portion and joining the first base portion adjacent to a portion facing the boundary line of the first substrate portion and both ends of the main outlet installation portion in the second substrate portion. A protective device having a second plate-like element disposed facing the area of . delete delete

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