JP2023079294A - Liquid storage bag, container insert, method for manufacturing container insert, assembly of container insert and container, and method for manufacturing assembly of container insert and container - Google Patents

Abstract

To provide a liquid storage bag which can be evenly inflated without breakage from a folded state where it is stored in an exterior container.SOLUTION: A liquid storage bag 30 of the invention includes: a spout 31 into which a liquid extraction tube 20 is removably inserted; and a bag body 32 having a storage space inside. The bag body 32 comprises: a first sheet portion 33 joined to the spout 31; a second sheet portion 34; and a seal portion 35 joining the peripheral edge portions of the first sheet portion 33 and the second sheet portion 34 together. In the folded state in which a bag 32 is folded so that the second sheet portion 34 covers the one end 20a side of the liquid extraction tube 20 along the one end 20a side of the liquid extraction tube 20, contained in the accommodation space, and the first sheet portion 33 is closer to the one end 20a side of the liquid extraction tube 20, the seal portion 35 is located between the first sheet portion 33 at the outermost circumference and the second sheet portion 34 at the portion covering the one end 20a side of the liquid extraction tube 20.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a liquid containing bag, a container insert, a method of manufacturing a container insert, a container insert and container assembly, and a method of manufacturing a container insert and container assembly.

2. Description of the Related Art Conventionally, in the fields of industrial chemicals, pharmaceuticals, cosmetics raw materials, etc., a liquid storage container is arranged inside an outer container, and a fluid content such as a liquid is filled in the liquid storage container. The liquid storage container is detachably attached to the outer container, and after the contents are used, the used liquid storage container is taken out from the outer container, and a new liquid storage container is attached inside the outer container. be. As a result, compared to the case where the fluid content is directly filled into the outer container without using the liquid storage container, it is possible to save the trouble of cleaning the outer container.

As such a liquid storage container, Japanese Patent No. 6323757 (Patent Document 1) describes a container in which a bag body provided with a spout is folded into a bellows shape via a vertical folding line extending along the vertical direction. disclosed.

In recent years, in the field of beverages such as soft drinks and beer, as disclosed in Japanese National Publication of International Patent Application No. 2011-501720 (Patent Document 2), an inner case arranged inside an outer case is filled with a beverage. It is done.

Japanese Patent No. 6323757 Japanese Patent Application Publication No. 2011-501720

However, in Patent Literature 1, when the bag main body folded in a bellows shape is housed in an exterior container and unfolded from the folded state by its own force, the heat-sealed portion of the bag body does not open. located on the perimeter. For this reason, when the bag is inflated, the heat-sealed part is likely to get caught on the exterior body, which prevents the bag from spreading properly, and there are concerns that the filling volume of the bag may become unstable and the bag may break. be done. Patent Document 2 also does not sufficiently consider such concerns.

The present disclosure has been made in view of the above problems, and an object of the present disclosure is to provide a liquid storage bag that can be evenly inflated from a folded state stored in an outer container while suppressing breakage, To provide a container insert equipped with the liquid containing bag, a method for manufacturing the container insert, an assembly of the container insert and the container, and a method for manufacturing the assembly of the container insert and the container. be.

A liquid storage bag based on the present disclosure includes a spout into which a liquid extraction tube is removably inserted, a bag body having a storage space capable of accommodating one end side of the liquid extraction tube therein, and joined to the spout, Prepare. The bag body includes a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion joined to each other. and a seal portion forming the accommodation space between the first seat portion and the second seat portion. The second sheet portion covers the one end side of the liquid take-out pipe accommodated in the accommodation space along the one end side of the liquid take-out pipe, and the first sheet portion approaches the one end side of the liquid take-out pipe. In the folded state in which the bag body is folded in, the seal portion is positioned between the first sheet portion positioned on the outermost periphery and the second sheet portion covering one end side of the liquid take-out pipe. To position.

In the liquid storage bag based on the present disclosure, in the folded state, the folded portion of the first sheet portion that is folded back from the outermost peripheral side to the inner side is positioned in the axial direction of the liquid take-out pipe at one end of the liquid take-out pipe. It is preferable that they are located at approximately the same position.

In the liquid storage bag based on the present disclosure, the spout is provided to penetrate the first sheet portion, and has a first end positioned outside the bag body and a first end positioned inside the bag body. a tubular body having a second end; a first flange provided at the first end; and a second flange portion protruding radially outward of the cylindrical body from the portion. In this case, the first seat portion may be joined to the second flange portion.

A container insertion tool based on the present disclosure has a liquid take-out tube detachably attached to an opening of a container, and an accommodation space, and the liquid is accommodated in the accommodation space at one end side of the liquid take-out tube. and a liquid containing bag attached to the take-out tube. The liquid containing bag includes a spout into which the liquid take-out tube is removably inserted, and a bag joined to the spout. The bag body includes a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion joined to each other. and a seal portion forming the accommodation space between the first seat portion and the second seat portion. The second sheet portion covers the one end side of the liquid take-out pipe housed in the accommodation space along the one end side of the liquid take-out pipe, and the first sheet portion covers the one end of the liquid take-out pipe. side of the bag so that the sealing portion is positioned between the first sheet portion located on the outermost periphery and the second sheet portion covering the one end side of the liquid take-out pipe. The liquid containing bag is attached to the liquid take-out pipe in a state where the body is folded.

A method of manufacturing a container insert to be inserted into a container according to the present disclosure includes: a spout; a first sheet portion joined to the spout; a second sheet portion superimposed on the first sheet portion; and a bag body having a sealing portion that joins peripheral edge portions of the first sheet portion and the second sheet portion to form a storage space between the first sheet portion and the second sheet portion. and attaching the liquid storage bag to a liquid take-out tube that is detachably attached to the opening of the container. The step of attaching the liquid containing bag to the liquid take-out pipe has one end and the other end in the axial direction, and the one end side is inserted into the containing space via the spout, and the gas in the containing space is released to the outside. a step of preparing a tubular first jig that is provided so as to be able to evacuate, a step of preparing a tubular second jig that is provided so that the one end side of the first jig can be inserted, and a step of preparing the first jig The first jig is positioned relative to the housing space via the spout so that the other end side is positioned outside the bag body and the one end side of the first jig is positioned within the housing space. a step of inserting; a step of covering the one end side of the first jig accommodated in the accommodation space with the second sheet portion along the one end side of the first jig; a step of relatively inserting the one end side of the separated first jig into the second jig; Meanwhile, the first sheet portion is brought closer to the one end side of the first jig along the second jig so that the seal portion is located inside the first sheet portion of the portion located on the outermost periphery. a step of folding the bag body, a step of relatively extracting the first jig from the bag body via the spout while maintaining the folded state in which the bag body is folded, and the folded state and relatively inserting the liquid take-out pipe via the spout into the accommodation space of the bag body in which the pressure is maintained.

In the manufacturing method of the container inserter based on the present disclosure, the step of relatively inserting the liquid take-out tube is performed by the second sheet portion of the portion covering the one end side of the first jig. One end side of the liquid extraction pipe is relatively inserted through the spout into the storage space defined and accommodated inside the second jig, and the liquid storage bag is inserted into the liquid extraction pipe. You may have the process of attaching.

The method of manufacturing the container inserter according to the present disclosure may further include the step of removing the liquid take-out tube to which the liquid containing bag is attached from the second jig.

The method of manufacturing the container inserter according to the present disclosure further includes, prior to the step of relatively extracting the first jig, pressing the bag body against the second jig so as to maintain the folded state. may be

In the method for manufacturing a container inserter based on the present disclosure, the spout is provided so as to penetrate the first sheet portion, and has a first end positioned outside the bag body and the bag body. a tubular body having a second end positioned inside; a first flange portion provided at the first end; and a second flange portion projecting radially outward of the cylindrical body from the first flange portion, and the first seat portion may be joined to the second flange portion. In this case, the step of relatively inserting the first jig includes inserting a gripping tool between the first flange portion and the second flange portion before relatively inserting the first jig. and gripping the liquid containing bag.

A container and container insert assembly according to the present disclosure includes a container having an interior space and an opening communicating with the interior space, and a container insert assembled to the container. The container inserter has one end and is detachably attached to the opening such that the one end is located in the internal space, and has a storage space, wherein the liquid extraction tube has a storage space. a liquid containing bag attached to the liquid take-out pipe so as to contain the one end side in the containing space. The liquid containing bag includes a spout into which the liquid take-out tube is removably inserted, and a bag joined to the spout. The bag body includes a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion joined to each other. and a seal portion forming the accommodation space between the first seat portion and the second seat portion. The liquid containing bag is arranged in the internal space of the container. The second sheet portion covers the one end side of the liquid take-out pipe housed in the accommodation space along the one end side of the liquid take-out pipe, and the first sheet portion covers the one end side of the liquid take-out pipe. Closer to one end side, the bag is positioned so that the seal portion is positioned between the first sheet portion located on the outermost periphery and the second sheet portion covering the one end side of the liquid take-out pipe. An assembly of a container and a container insert, wherein the liquid containing bag is attached to the liquid extraction tube in a state where the body is folded.

A method of manufacturing a container and container insert assembly according to the present disclosure includes the steps of providing a container having an interior space and an opening communicating with the interior space; and assembling the container insert to the container. The container insertion tool has one end and is detachably attached to the opening, and has an accommodation space, wherein the one end side of the liquid extraction tube is accommodated in the accommodation space. and a liquid storage bag attached to the liquid take-out pipe. The liquid containing bag includes a spout into which the liquid take-out tube is removably inserted, and a bag joined to the spout. The bag body includes a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion joined to each other. and a seal portion forming the accommodation space between the first seat portion and the second seat portion. The second sheet portion covers the one end side of the liquid take-out pipe housed in the accommodation space along the one end side of the liquid take-out pipe, and the first sheet portion covers the one end side of the liquid take-out pipe. and the bag body is positioned so that the seal portion is positioned between the first sheet portion located on the outermost periphery and the second sheet portion covering the one end side of the liquid take-out pipe. In the folded state, the liquid containing bag is attached to the liquid take-out pipe. In the step of assembling the container insert to the opening, the liquid extraction is performed such that the one end of the liquid extraction tube is positioned in the internal space and the liquid containing bag is arranged in the internal space of the container. A tube is attached to the opening.

According to the present disclosure, manufacturing of a liquid storage bag that can be evenly inflated while suppressing breakage from a folded state stored in an external container, a container insertion tool provided with the liquid storage bag, and a container insertion tool Methods, container insert and container assemblies, and methods of manufacturing container insert and container assemblies can be provided.

1 is a schematic cross-sectional view showing an assembly of a container insertion tool and an outer container according to an embodiment; FIG. FIG. 4 is a schematic cross-sectional view showing a state in which a liquid containing bag is filled with liquid in the assembly according to the embodiment; FIG. 4 is a developed view of the liquid containing bag showing a state before the liquid containing bag according to the embodiment is folded. 4 is a perspective view showing a spout provided in the liquid containing bag according to the embodiment; FIG. 4 is an enlarged cross-sectional view showing an enlarged cross-section of the liquid containing bag along the line VV shown in FIG. 3; FIG. 4 is a manufacturing flow showing a manufacturing process of the container insert according to the embodiment. FIG. 10 is a diagram showing a step of relatively inserting the first jig into the housing space of the bag in the manufacturing process of the container insertion tool according to the embodiment; FIG. 7 is a diagram showing a process of covering one end side of the first jig with the second sheet portion of the bag in the manufacturing process of the container insert according to the embodiment; FIG. 10 is a diagram showing a step of relatively inserting one end side of the first jig covered with the second sheet portion into the second jig in the manufacturing process of the container insertion tool according to the embodiment; FIG. 5 is a diagram showing a step of folding a bag in the manufacturing process of the container insert according to the embodiment; FIG. 11 shows the state after the step of folding the bag shown in FIG. 10; FIG. 10 is a diagram showing a step of relatively extracting the first jig from the bag while maintaining the folded state of the bag in the manufacturing process of the container insert according to the embodiment. FIG. 10 is a diagram showing a step of relatively inserting the liquid take-out tube into the bag body maintained in the folded state in the manufacturing process of the container inserting device according to the embodiment; 14 is a diagram showing a state after the step of relatively inserting the liquid take-out pipes shown in FIG. 13; FIG. FIG. 10 is a diagram showing a process of removing the liquid take-out tube to which the liquid containing bag is attached from the second jig in the manufacturing process of the container inserting device according to the embodiment; FIG. 4 is a manufacturing flow diagram showing a manufacturing process of the assembly according to the embodiment; FIG. 7 is a diagram showing a step of assembling the container insert manufactured through the manufacturing process of the container insert into the exterior container in the manufacturing process of the assembly according to the embodiment. FIG. 5 is a manufacturing flow chart showing a manufacturing process of a container insert according to a modification; FIG. 10 is a diagram showing a step of pressing the folded bag body against the second jig in the manufacturing process of the container insert according to the modification.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the embodiments shown below, the same or common parts are denoted by the same reference numerals in the drawings, and the description thereof will not be repeated.

(Embodiment)
FIG. 1 is a schematic cross-sectional view showing an assembly of a container insert and an outer container according to an embodiment. An assembly 100 according to an embodiment will be described with reference to FIG.

As shown in FIG. 1 , an assembly 100 is obtained by assembling a container insertion tool 10 to an outer container 1 as a container, and includes the outer container 1 and the container insertion tool 10 .

The exterior container 1 is used for filling beverages such as alcoholic beverages such as beer, low-malt beer, wine, Japanese sake, or distilled spirits, or non-alcoholic beverages such as non-alcoholic beer, soft drinks, and carbonated beverages. It is. Note that the exterior container 1 is not limited to beverages as long as it has a space that can be filled with liquid.

The outer container 1 includes a body portion 2 , an upper protective portion 7 and a lower protective portion 8 . The body portion 2 has a top wall portion 3 , a bottom wall portion 4 and a peripheral wall portion 5 . A base portion 6 as an opening is provided in a substantially central portion of the upper wall portion 3 . The base portion 6 is provided so as to communicate with the internal space of the main body portion 2 . The base portion 6 is formed in a tubular shape, and is provided so as to be engageable with the first tubular portion 21 of the container insert 10 . The peripheral wall portion 5 is provided so as to connect the peripheral edges of the top wall portion 3 and the bottom wall portion 4 . The main body 2 is made of, for example, a metal member such as aluminum, steel, or stainless steel. Note that the body portion 2 may be made of a resin member.

The upper protection portion 7 protects the upper portion of the body portion 2 and the base portion 6 . The upper protection portion 7 is annularly provided along the peripheral edge of the upper wall portion 3 . The upper protection portion 7 is provided so as to surround the base portion 6 . The lower protection portion 8 protects the bottom portion of the main body portion 2 . The lower protection portion 8 is annularly provided along the periphery of the bottom wall portion 4 .

The upper protective portion 7 and the lower protective portion 8 are connected to the main body portion 2 by, for example, welding. In addition, the upper protective portion 7 and the lower protective portion 8 may be molded integrally with the main body portion 2 . Moreover, the upper protection part 7 and the lower protection part 8 may be omitted.

The container inserter 10 includes a liquid take-out tube 20 and a liquid containing bag 30 . The liquid extraction pipe 20 is detachably attached to the mouthpiece 6 . The liquid take-out pipe 20 is used to fill a liquid containing bag 30 inserted into the interior (internal space) of the main body 2 with liquid, or to take out liquid from the liquid containing bag 30 . The liquid extraction tube 20 has one end 20a and the other end 20b. The liquid take-out tube 20 is attached to the external container 1 with one end 20a inserted into the main body 2 through the mouthpiece 6 .

The liquid extraction pipe 20 has a first tubular portion 21 and a second tubular portion 22 . The first tubular portion 21 includes a first portion 211 and a second portion 212 .

The first portion 211 and the second portion 212 have a tubular shape. The first portion 211 is positioned above the second portion 212 . The inner and outer diameters of the first portion 211 are larger than the inner and outer diameters of the second portion 212, respectively.

An engaging portion (not shown) is provided on the outer surface of the first portion 211 so as to be engageable with the inner peripheral surface of the base portion 6 . The first portion 211 is accommodated in the mouthpiece portion 6 in the attached state in which the container insert 10 is attached to the exterior container 1 .

The second portion 212 is provided so as to be continuous with the first portion 211 . The inside of the second portion 212 communicates with the inside of the first portion 211 . The second portion 212 is housed inside the body portion 2 in the attached state. A through hole (not shown) is provided in the second portion 212 . The through-hole communicates with the inside of the body portion 2 in the attached state.

The second tubular portion 22 is provided so as to pass through the first tubular portion 21 . One end of the second tubular portion 22 constitutes one end 20 a of the liquid take-out pipe 20 . One end of the second tubular portion 22 is located outside the first tubular portion 21 . The other end of the second tubular portion 22 is positioned inside the first tubular portion 21 .

On the other end side of the second tubular portion 22, a first switching mechanism (not shown) for switching between a gas-passable state and a liquid-impermeable state and a liquid-passable state and a liquid-impermeable state are provided. A second switching mechanism (not shown) is provided.

The first switching mechanism is in an open state in which gas can be supplied into the body portion 2 or gas can be exhausted from the body portion 2 through the through hole of the second portion 212 and the inside of the first cylindrical portion 21. It is provided so as to be switchable between a closed state in which gas cannot be supplied into the body portion 2 or gas cannot be exhausted from the body portion 2 . The first switching mechanism is configured by a valve or the like, for example.

The second switching mechanism allows the liquid to be supplied to the accommodation space S of the liquid accommodation bag 30 through the second cylindrical portion 22 or allows the liquid to be discharged from the liquid accommodation bag 30 in an open state. It is provided so as to be switchable between a closed state in which supply is disabled or liquid cannot be discharged. The second switching mechanism is configured by a valve or the like, for example.

The second tubular portion 22 has a large diameter portion 221 and a small diameter portion 222 . The large diameter portion 221 constitutes the upper portion of the second tubular portion 22 . The upper side of the large diameter portion 221 is located inside the first tubular portion 21 . The lower side of the large diameter portion 221 is located outside the first tubular portion 21 . The outer diameter of the large diameter portion 221 is smaller than the inner diameter of the second portion 212 . The outer peripheral surface of the portion of the large-diameter portion 221 exposed from the second tubular portion 22 is in close contact with a sealing portion 313 (see FIG. 5) of the spout 31, which will be described later.

The small diameter portion 222 constitutes the lower portion of the second tubular portion 22 . The small diameter portion 222 is provided so as to be continuous with the large diameter portion 221 . The lower side of the large diameter portion 221 and the small diameter portion 222 are accommodated in the accommodation space S described above.

The liquid containing bag 30 is replaceably attached to the liquid take-out pipe 20 . The liquid containing bag 30 has a containing space S in which one end 20a of the liquid take-out pipe 20 is contained.

The liquid containing bag 30 has a spout 31 and a bag body 32 . A liquid extraction pipe 20 is removably inserted into the spout 31 . In addition, in the inserted state in which the liquid containing bag 30 is inserted, the outer peripheral surface of the large-diameter portion 221 is in close contact with the sealing portion 313 as described above. As a result, the space between the outer peripheral surface and the sealing portion 313 is hermetically or liquid-tightly sealed. The spout 31 is joined to the bag body 32 . The bag body 32 is accommodated in the body portion 2 in a folded state. A detailed configuration of the liquid containing bag 30 will be described later with reference to FIGS. 3 to 5 as well.

FIG. 2 is a schematic cross-sectional view showing a state in which a liquid containing bag is filled with liquid in the assembly according to the embodiment.

As shown in FIG. 2, with the above-described first switching mechanism and second switching mechanism in the open state, the air inside the main body 2 is exhausted, and the liquid storage bag 30 (more supplies a liquid such as a beverage into the bag 32). As a result, the bag 32 is inflated along the inner peripheral surface of the main body 2 and filled with the liquid.

Further, after the bag body 32 is filled with the liquid, the first switching mechanism and the second switching mechanism are opened, and gas is supplied into the exterior container 1 to increase the internal pressure of the exterior container 1. The liquid filled in the liquid storage bag 30 is taken out through the liquid take-out pipe 20 . At this time, since the gas supplied into the external container 1 and the liquid filled in the liquid containing bag 30 do not come into direct contact with each other, the liquid can be prevented from being altered.

After the liquid has been taken out, the container insert 10 is removed from the outer container 1 . In the removed container insertion tool 10 , the liquid containing bag 30 is removed from the liquid taking-out pipe 20 and a new liquid containing bag 30 is attached to the liquid taking-out pipe 20 . As a result, compared to the case where the outer container 1 is directly filled with the liquid, the trouble of cleaning the outer container 1 can be saved.

FIG. 3 is an exploded view of the liquid containing bag according to the embodiment, showing a state before the liquid containing bag is folded. FIG. 4 is a perspective view showing a spout provided in the liquid containing bag according to the embodiment. 5 is an enlarged cross-sectional view showing a cross section of the liquid containing bag along line VV shown in FIG. 3. FIG.

As shown in FIGS. 1 and 3 , the bag body 32 of the liquid containing bag 30 has a first sheet portion 33 , a second sheet portion 34 and a sealing portion 35 .

The first seat portion 33 and the second seat portion 34 have a polygonal shape in the unfolded state. In the present embodiment, first sheet portion 33 and second sheet portion 34 have, for example, an octagonal shape.

The first sheet portion 33 and the second sheet portion 34 are made of synthetic resin such as polyethylene and polypropylene. The first sheet portion 33 and the second sheet portion 34 may be composed of any one of a high-density polyethylene layer, a low-density polyethylene layer, a polyethylene terephthalate layer, and a nylon layer, or at least two layers among these layers. It may be composed of a laminate containing.

Furthermore, the first sheet portion 33 and the second sheet portion 34 may be configured by a laminated film in which a light shielding layer such as aluminum foil or an aluminum deposition layer or an oxygen barrier layer is disposed between a plurality of synthetic resin layers. .

Peripheral edges of the first sheet portion 33 and the second sheet portion 34 are sealed by a sealing portion 35 . Thereby, a housing space S is formed between the first seat portion 33 and the second seat portion 34 . The seal portion 35 is formed, for example, by welding the first sheet portion 33 and the second sheet portion 34 together.

As shown in FIGS. 4 and 5, the spout 31 has a tubular body 310 having a first end 31a and a second end 31b, a first flange portion 311, a second flange portion 312, and a sealing portion 313. As shown in FIGS.

The spout 31 is joined to the first sheet portion 33 , and the cylindrical body 310 passes through the first sheet portion 33 . The first end 31 a is located outside the bag 32 and the second end 31 b is located inside the bag 32 .

The first flange portion 311 is provided at the first end 31a. The second flange portion 312 protrudes radially outward of the tubular body 310 more than the first flange portion 311 . The second flange portion 312 is provided on the cylindrical body 310 apart from the first flange portion 311 toward the second end 31b. As a result, the gripper 50 (see FIG. 7) is inserted between the first flange portion 311 and the second flange portion 312 when performing the step of attaching the bag body 32 to the liquid take-out pipe 20 as will be described later. The liquid containing bag 32 can be gripped by the hands.

The first seat portion 33 is joined to the second flange portion 312 that protrudes from the first flange portion 311 when viewed from the axial direction of the tubular body 310 . The first seat portion 33 is welded to the main surface of the second flange portion 312 located on the first end 31a side. Specifically, the first sheet portion 33 is provided with an opening through which the first flange portion 311 can pass, and the peripheral edge of the opening is welded to the main surface of the second flange portion 312 . As a result, the first sheet portion 33 can be easily welded using heat sealing or the like.

The sealing portion 313 is provided on the inner peripheral surface 310 a of the cylindrical body 310 . The sealing portion 313 is in close contact with the outer peripheral surface of the second cylindrical portion 22 of the liquid extraction pipe 20 inserted into the spout 31, thereby airtightly or liquid-tightly sealing the space between the sealing portion 313 and the outer peripheral surface. stop.

As shown in FIG. 1 again, the liquid storage bag 30 is attached to the liquid extraction pipe 20 with the bag body 32 folded. The second sheet portion 34 covers the one end 20a side of the liquid take-out pipe 20 housed in the accommodation space S along the one end 20a side of the liquid take-out pipe 20, and the first sheet portion 33 covers the liquid take-out pipe 20. In the folded state in which the bag body 32 is folded so as to approach the one end 20a side, the sealing portion 35 consists of the first sheet portion 33 located at the outermost periphery and the portion covering the one end 20a side of the liquid take-out pipe 20. It is positioned between the second seat portion 34 and the second seat portion 34 .

By folding the bag body 32 in this manner, the liquid containing bag 30 can be inserted into the main body 2 through the mouthpiece 6 . Further, in the folded state, the sealing portion 35 is positioned between the first sheet portion 33 positioned on the outermost periphery and the second sheet portion 34 covering the one end 20a side of the liquid take-out pipe 20. As shown in FIG. 2, it is possible to prevent the seal portion 35 from being caught on the inner peripheral surface of the main body portion 2 when the bag body 32 is inflated. As a result, the bag 32 can be evenly inflated while suppressing breakage of the bag 32 .

In the folded state, the folded portion 33c of the first sheet portion 33 that is folded back inward from the outermost peripheral side is located at substantially the same position as the one end 20a of the liquid take-out pipe 20 in the axial direction of the liquid take-out pipe 20.

Thereby, it is possible to prevent the folded portion 33c from being caught on the bottom portion of the main body portion 2 in the process of inflating the bag body 32 . As a result, damage to the bag body 32 can be suppressed more effectively, and the bag body 32 can be evenly inflated.

FIG. 6 is a manufacturing flow showing a manufacturing process of the container insert according to the embodiment. 7 to 15 are diagrams showing predetermined steps in the manufacturing process of the container insert or states after predetermined steps. A method of manufacturing the container insert 10 will be described with reference to FIGS. 6 to 15 .

As shown in FIG. 6, the method for manufacturing the container insert 10 includes a step of preparing the liquid containing bag 30 (S10), a step of attaching the liquid containing bag 30 to the liquid take-out pipe 20 (S20), and a step of A step (S30) of removing the liquid take-out pipe 20 to which 30 is attached from the second jig is provided.

When manufacturing the container insert 10, first, in step (S10), the spout 31, the first sheet portion 33 joined to the spout 31, and the second sheet portion 33 superimposed on the first sheet portion 33 are formed as described above. A bag having a sealing portion 35 that joins peripheral edge portions of the sheet portion 34, the first sheet portion 33, and the second sheet portion 34 to form an accommodation space S between the first sheet portion 33 and the second sheet portion 34. A liquid containing bag 30 including a body 32 is provided.

Subsequently, step (S20) is performed. In carrying out the step (S20), a tubular first jig 40 (see FIG. 7) is prepared in the step (S21). The first jig 40 has one end 40a (see FIG. 7) and the other end 40b (see FIG. 7) in the axial direction. It is provided so that the internal gas can be exhausted to the outside.

Further, in step (S22), a cylindrical second jig 60 (see FIG. 9) is prepared. The second jig 60 is provided so that the one end 40a side of the first jig 40 can be inserted. Note that the step (S22) of preparing the second jig described above may be performed before the step (S25), which will be described later, is performed.

FIG. 7 is a diagram showing a step of relatively inserting the first jig into the accommodation space of the bag in the manufacturing process of the container insert according to the embodiment.

Subsequently, as shown in FIGS. 6 and 7, in step (S23), one end 40a of the first jig 40 is relatively inserted into the housing space S of the bag body 32. Then, as shown in FIGS. More specifically, the first jig 40 is inserted into the housing space S through the spout 31 so that the other end 40b of the first jig 40 is positioned outside the bag body 32 . do.

Note that the first jig 40 may be moved as shown by the arrow in FIG. Thus, the first jig 40 may be inserted into the accommodation space S.

The first jig 40 has substantially the same shape as the liquid take-out pipe 20 . The first jig 40 has a first tubular portion 41 and a second tubular portion 42 . The first tubular portion 41 has a bottom portion 411 . A through hole is provided in the center of the bottom portion 411 .

The second cylindrical portion 42 is connected to the bottom portion 411 so that the interior of the second cylindrical portion 42 communicates with the interior of the first cylindrical portion 41 through the through hole. The length of the second tubular portion 42 along the axial direction is substantially the same as the length of the second tubular portion 22 of the liquid extraction pipe 20 .

The second tubular portion 42 has a large diameter portion 421 and a small diameter portion 422 . The large diameter portion 421 constitutes the upper portion of the second tubular portion 42 . The large diameter portion 421 has substantially the same shape as the large diameter portion 221 described above. The outer diameter of the large diameter portion 421 is smaller than the inner diameter of the first tubular portion 41 . A through hole 423 is provided in the peripheral wall portion of the large diameter portion 421 . The through hole 423 is provided on the lower side of the peripheral wall. The small diameter portion 422 constitutes the lower portion of the second tubular portion 42 . The small diameter portion 422 is provided so as to be continuous with the large diameter portion 421 .

Before the first jig 40 is relatively inserted into the accommodation space S, the gripping tool 50 is inserted between the first flange portion 311 and the second flange portion 312 to grip the liquid storage bag 30. You may Specifically, the gripper 50 is provided with a hook portion 51 on the tip side, and the hook portion 51 is inserted between the first flange portion 311 and the second flange portion 312 . By hooking the spout 31 on the hook portion 51 in this manner, the liquid containing bag 30 is gripped. By gripping the liquid containing bag 30 with the gripper 50, the first jig 40 can be easily inserted.

A bottom portion 411 of the first tubular portion 41 is provided so as to be able to abut against the first flange portion 311 , and the above-described large diameter portion 421 is provided so as to be insertable into the spout 31 . Accordingly, when the first jig 40 is inserted into the accommodation space S, the first cylindrical portion 41 is positioned outside the accommodation space S. As shown in FIG. Also, when the first jig 40 is inserted into the housing space S, the outer peripheral surface of the large diameter portion 421 is in close contact with the aforementioned sealing portion 313 provided on the inner peripheral surface of the spout 31 . Also, the lower side of the large-diameter portion 421 and the small-diameter portion 422 are positioned within the housing space S. As shown in FIG. In this state, the through hole 423 provided in the large diameter portion 421 communicates with the housing space S. As shown in FIG.

The first jig 40 may be inserted with the bag body 32 inflated, or may be inserted while expanding the bag body 32 on the one end 40a side of the first jig 40 .

FIG. 8 is a diagram showing a process of covering one end side of the first jig with the second sheet portion of the bag in the manufacturing process of the container insert according to the embodiment.

Subsequently, as shown in FIGS. 6 and 8, in a step (S24), the one end 40a side of the first jig 40 is covered with the second sheet portion . More specifically, the one end 40a side of the first jig 40 housed in the housing space S is covered with the second sheet portion 34 along the one end 40a side of the first jig 40 . As a result, the lower side of the small diameter portion 422 and the circumference around the axis are covered with the second sheet portion 34 . In addition, the first seat portion 33 is curved in a substantially C shape with one end away from the second flange portion 312 to the outside in the radial direction of the first jig 40 , and the seal portion 35 is bent below the second flange portion 312 . toward one end 40 a of the first jig 40 .

FIG. 9 is a diagram showing a process of relatively inserting one end side of the first jig covered with the second sheet portion into the second jig in the manufacturing process of the container insertion tool according to the embodiment.

6 and 9, in step (S25), the one end 40a side of the first jig 40 covered with the second sheet portion 34 is relatively inserted into the second jig 60. As shown in FIGS. Specifically, as indicated by an arrow AR1 in FIG. The second jig 60 may be moved closer to the first jig 40 and the one end 40 a side of the first jig 40 may be inserted into the second jig 60 .

The second jig 60 has a tubular portion 61 and a base portion 62 . The tubular portion 61 extends along the axial direction. The base portion 62 protrudes radially outward from the lower end of the tubular portion 61 . The base portion 62 is provided with an opening communicating with the tubular portion 61 . As a result, the cleaning of the second jig 60 is facilitated, and the sanitary condition of the second jig can be kept clean. One end 40 a of the first jig 40 is inserted inside the tubular portion 61 .

FIG. 10 is a diagram showing a step of folding the bag in the manufacturing process of the container insert according to the embodiment. 11 is a diagram showing a state after the step of folding the bag body shown in FIG. 10. FIG.

Subsequently, as shown in FIGS. 6 and 10, the bag body 32 is folded in step (S26). Specifically, as shown in FIGS. 10 and 11, the gas inside the bag body 32 in the portion exposed from the second jig 60 is passed through the through hole 423 and the inside of the cylindrical first jig 40. While evacuating to the outside, the first sheet portion 33 is moved along the second jig 60 (cylindrical portion 61) toward the one end 40a side of the first jig 40 as indicated by an arrow AR2 in the figure, and the sealing portion 35 is is positioned between the first sheet portion 33 positioned on the outermost periphery and the second sheet portion 34 covering the one end 40 a side of the first jig 40 .

At this time, the folded portion 33 c of the first sheet portion 33 that is folded back inward from the outermost peripheral side is located at substantially the same position as the one end 40 a of the first jig 40 in the axial direction of the first jig 40 .

FIG. 12 is a diagram showing a process of relatively extracting the first jig from the bag while maintaining the folded state of the bag in the manufacturing process of the container insert according to the embodiment.

6 and 12, in step (S27), the first jig 40 is removed from the bag 32 via the spout 31 while maintaining the folded state in which the bag 32 is folded. pull out to Specifically, for example, the first jig 40 is moved as indicated by an arrow AR3 in FIG. 12 while the folded bag 32 and the second jig 60 are fixed by a fixing device (not shown). . With the first jig 40 fixed, the bag body 32 is held by the second jig 60 so that the folded state is maintained, and the second jig 60 is moved away from the first jig 40. good too.

FIG. 13 is a diagram showing a step of relatively inserting the liquid take-out tube into the bag that is maintained in the folded state in the manufacturing process of the container insert according to the embodiment. 14 is a diagram showing a state after the step of relatively inserting the liquid take-out pipes shown in FIG. 13. FIG.

Subsequently, as shown in FIGS. 6 and 13, in step (S28), the liquid take-out tube 20 is relatively inserted into the bag 32 maintained in the folded state. Specifically, as shown in FIGS. 13 and 14, the folded bag body 32 and the second jig 60 are fixed by a fixing device (not shown), and the arrow AR4 in FIG. , the liquid take-out tube 20 is moved to insert the one end 20 a side of the liquid take-out tube 20 into the accommodation space S through the spout 31 .

More specifically, the spout 31 is inserted into the accommodation space defined by the second sheet portion 34 covering the one end 40 a side of the first jig 40 and accommodated inside the second jig 60 . The liquid containing bag 30 is attached to the liquid take-out tube 20 by inserting the one end 20a side of the liquid take-out tube 20 through.

The one end 20a side of the liquid take-out tube 20 may be inserted into the accommodation space S by moving the second jig 60 holding the folded bag 32 while the liquid take-out tube 20 is fixed.

As shown in FIG. 14, in the state where the liquid take-out tube 20 is inserted, the one end 20a of the liquid take-out tube 20 accommodated in the accommodation space S is extended along the one end 20a of the liquid take-out tube 20 to the second position. The bag body 32 is folded so that the sheet portion 34 covers the bag body 32 and the first sheet portion 33 approaches the one end 20a side of the liquid take-out pipe 20. It is positioned between the sheet portion 33 and the second sheet portion 34 that covers the one end 20 a side of the liquid take-out pipe 20 . In addition, the folded portion 33c of the first sheet portion 33 that is folded back inward from the outermost peripheral side is located at substantially the same position as the one end 20a of the liquid take-out pipe 20 in the axial direction of the liquid take-out pipe 20 .

FIG. 15 is a diagram showing a process of removing the liquid take-out tube to which the liquid containing bag is attached from the second jig in the manufacturing process of the container insert according to the embodiment.

Subsequently, as shown in FIGS. 6 and 15 , in step ( S<b>30 ), the liquid take-out pipe 20 to which the liquid containing bag 30 is attached is removed from the second jig 60 . The liquid take-out pipe 20 to which the liquid containing bag 30 is attached is relatively extracted from the second jig 60 . Specifically, while the second jig 60 is fixed by a fixing device (not shown), the liquid extraction pipe 20 to which the liquid containing bag 30 is attached is moved as indicated by an arrow AR5 in FIG. The second jig 60 may be moved while the liquid extraction pipe 20 is fixed.

Through the steps described above, the container insert 10 according to the embodiment can be manufactured.

FIG. 16 is a manufacturing flow chart showing the manufacturing process of the assembly according to the embodiment. 17A and 17B are diagrams showing predetermined steps in the manufacturing process of the assembly according to the embodiment. A method of manufacturing the assembly 100 according to the embodiment will be described with reference to FIGS. 16 and 17. FIG.

As shown in FIG. 16, the steps of manufacturing the assembly 100 include a step of preparing the outer container 1 (S50), a step of preparing the container insert 10 to be attached to the outer container 1 (S60), and a step of preparing the outer container 1 (S60). 1 includes a step of assembling the container insert 10 (S70).

In the step of preparing the outer container 1 (S50), the above-described outer container 1 having the mouthpiece 6 (opening) communicating with the internal space is prepared. Further, in the step of preparing the container insertion tool 10 (S60), the above-described container insertion tool 10 in which the liquid storage bag 30 in the folded state is attached to the liquid extraction tube 20 is prepared.

FIG. 17 is a diagram showing a process of assembling the container insert manufactured through the manufacturing process of the container insert into the exterior container in the manufacturing process of the assembly according to the embodiment. Subsequently, as shown in FIG. 17, the liquid take-out tube 20 is opened so that one end 20a of the liquid take-out tube 20 is positioned inside (internal space) of the main body 2 and the liquid containing bag 30 is arranged in the above-mentioned internal space. is attached to the base portion 6. Specifically, one end side of the container insertion tool 10 (one end 20a side of the liquid take-out tube 20 to which the liquid storage bag 30 in the folded state is attached) is inserted into the exterior container 1 via the mouthpiece 6. do. The outer diameter of the bag body 32 in the folded state is smaller than the inner diameter of the mouthpiece 6, and when the one end 20a of the liquid take-out tube 20 is inserted into the outer container 1, the bag body 32 is in the folded state. passes through the mouthpiece portion 6 while maintaining the Subsequently, the other end side of the container insertion tool 10 (the other end 20b side of the liquid extraction tube 20) is engaged with the mouthpiece 6, and the container insertion tool 10 is attached to the exterior container 1. As shown in FIG. Thus, the assembly 100 is manufactured. In the assembly 100, as described above, while the air inside the main body 2 of the outer container 1 is being discharged, the liquid such as beverage is introduced into the liquid containing bag 30 through the second tubular portion 22 of the liquid take-out tube 20. supply. As a result, the bag 32 is inflated along the inner peripheral surface of the main body 2 and filled with the liquid.

FIG. 18 is a manufacturing flow chart showing a modification of the manufacturing process of the container insert. A modification of the method for manufacturing the container insert 10 will be described with reference to FIG. 18 .

As shown in FIG. 18, in this modified example, in the step of attaching the liquid containing bag 30 to the liquid take-out tube 20 (S20A), the first jig is The difference is that the step (S26A) of pressing the bag body 32 against the second jig 60 so as to maintain the folded state is performed before the step (S27) of extracting the bag 40 . Other steps are performed according to the manufacturing method of the container insert 10 according to the embodiment.

FIG. 19 is a diagram showing a step of pressing the bag against the second jig so as to maintain the folded state in the manufacturing process of the container insert according to the modification.

As shown in FIGS. 18 and 19, in the step (S26A), specifically, for example, a stretchable annular elastic member 90 is used to press the bag body 32 against the second jig 60. As shown in FIG. More specifically, the second jig 60 and the part of the bag body 32 exposed from the second jig 60 are placed inside the elongated elastic member 90, and the elastic member 90 is contracted. The contractile force of the elastic member 90 presses the bag body 32 against the second jig 60 . By pressing the bag 32 against the second jig 60 so as to maintain the folded state, the first jig 40 can be easily removed from the bag 32 in a subsequent step.

As described above, in the manufacturing process of the container inserter and its modified example, the container inserter 10 having the folded state as described above is manufactured. In addition, the container insert 10 is used in the direction of assembly and manufacture of the assembly. Therefore, as described above, it is possible to prevent the seal portion 35 from being caught on the inner peripheral surface of the main body portion 2 when the liquid is supplied to inflate the bag body 32 . As a result, the bag 32 can be evenly inflated while suppressing breakage of the bag 32 .

As described above, the embodiments disclosed this time are illustrative in all respects and are not restrictive. The scope of the present invention is indicated by the scope of claims, and includes all modifications within the meaning and scope of equivalence to the scope of claims.

1 outer container, 2 main body, 3 upper wall, 4 bottom wall, 5 peripheral wall, 6 mouthpiece, 7 upper protective part, 8 lower protective part, 10 container insertion tool, 20 liquid extraction pipe, 20a one end, 20b other end, 21 first tubular portion, 22 second tubular portion, 30 liquid containing bag, 31 spout, 31a first end, 31b second end, 32 bag body, 33 first sheet portion, 33c folded portion, 34 second seat portion 35 seal portion 40 first jig 40a one end 40b other end 41 first tubular portion 42 second tubular portion 50 gripper 51 hook portion 60 second jig 61 Cylindrical Part 62 Base Part 90 Elastic Member 100 Assembly 211 First Part 212 Second Part 221 Large Diameter Part 222 Small Diameter Part 310 Cylindrical Body 310a Inner Peripheral Surface 311 First Flange Part , 312 second flange portion, 313 sealing portion, 411 bottom portion, 421 large diameter portion, 422 small diameter portion, 423 through hole.

Claims (11)

a spout into which the liquid extraction pipe is removably inserted;
a bag body having an accommodation space inside which can accommodate one end side of the liquid take-out pipe and joined to the spout;
The bag body includes a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion joined to each other. , a sealing portion that forms the accommodation space between the first seat portion and the second seat portion;
The second sheet portion covers the one end side of the liquid take-out pipe housed in the accommodation space along the one end side of the liquid take-out pipe, and the first sheet portion is arranged so as to approach the one end side of the liquid take-out pipe. In the folded state in which the bag body is folded in, the sealing portion is positioned between the first sheet portion located on the outermost periphery and the second sheet portion covering one end side of the liquid take-out pipe. Located, liquid containment bag. 2. The method according to claim 1, wherein in the folded state, the folded portion of the first sheet portion that is folded back inward from the outermost peripheral side is positioned at substantially the same position as one end of the liquid take-out pipe in the axial direction of the liquid take-out pipe. Liquid storage bag. The spout is provided to pass through the first sheet portion and has a tubular body having a first end located outside the bag body and a second end located inside the bag body; a first flange portion provided at an end; and a first flange portion provided on the tubular body away from the first flange portion toward the second end side, and protruding radially outward of the tubular body from the first flange portion. and a second flange portion that
3. The liquid containing bag according to claim 1, wherein said first sheet portion is joined to said second flange portion. a liquid extraction tube detachably attached to the opening of the container;
a liquid storage bag having an accommodation space and attached to the liquid extraction pipe so as to accommodate one end of the liquid extraction pipe in the accommodation space;
The liquid containing bag includes a spout into which the liquid extraction tube is removably inserted, and a bag joined to the spout,
The bag body includes a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion joined to each other. , and a sealing portion that forms the accommodation space between the first seat portion and the second seat portion,
The second sheet portion covers the one end side of the liquid take-out pipe housed in the accommodation space along the one end side of the liquid take-out pipe, and the first sheet portion covers the one end side of the liquid take-out pipe. Approaching one end side, the bag is positioned so that the seal portion is positioned between the first sheet portion located on the outermost periphery and the second sheet portion covering the one end side of the liquid take-out pipe. The container insertion tool, wherein the liquid containing bag is attached to the liquid take-out tube in a state where the body is folded. A method for manufacturing a container insert to be inserted into a container, comprising:
A spout, a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion are joined to each other, and the first preparing a liquid containing bag including a bag body having a sealing portion that forms a containing space between the sheet portion and the second sheet portion;
attaching the liquid storage bag to a liquid take-out tube that is detachably attached to the opening of the container;
The step of attaching the liquid storage bag to the liquid take-out pipe includes:
a tubular first jig having one end and the other end in the axial direction, the one end being inserted into the accommodation space via the spout so as to be able to exhaust the gas in the accommodation space to the outside; the process of preparing,
a step of preparing a tubular second jig in which the one end side of the first jig can be inserted;
The first jig is inserted into the housing space via the spout such that the other end of the first jig is positioned outside the bag body and the one end of the first jig is positioned within the housing space. a step of relatively inserting the jig;
a step of covering the one end side of the first jig housed in the housing space with the second sheet portion along the one end side of the first jig;
a step of relatively inserting the one end side of the first jig covered with the second sheet portion into the second jig;
While the gas in the bag body exposed from the second jig is exhausted to the outside through the first jig, the first sheet portion is moved along the second jig to the one end side of the first jig. so that the seal portion is located between the first sheet portion located on the outermost periphery and the second sheet portion of the portion covering the one end side of the first jig. the process of folding the body;
a step of relatively extracting the first jig from the bag body through the spout while maintaining the folded state in which the bag body is folded;
A method of manufacturing a container inserter, comprising: relatively inserting the liquid take-out tube through the spout into the accommodation space of the bag body maintained in the folded state. The step of relatively inserting the liquid take-out pipe is defined by the second sheet portion of the portion covering the one end side of the first jig and accommodated inside the second jig. 6. The container insertion according to claim 5, comprising a step of relatively inserting one end side of the liquid take-out tube into the accommodation space via the spout to attach the liquid containing bag to the liquid take-out tube. method of making tools. 7. The method for manufacturing a container insert according to claim 6, further comprising the step of removing said liquid take-out pipe to which said liquid containing bag is attached from said second jig. 8. The method according to any one of claims 5 to 7, further comprising a step of pressing the bag body against the second jig so as to maintain the folded state before the step of relatively extracting the first jig. method for manufacturing the container insert of The spout is provided to pass through the first sheet portion and has a tubular body having a first end located outside the bag body and a second end located inside the bag body; a first flange portion provided at an end; and a first flange portion provided on the tubular body away from the first flange portion toward the second end side, and protruding radially outward of the tubular body from the first flange portion. and a second flange portion that
The first seat portion is joined to the second flange portion,
The step of relatively inserting the first jig includes inserting a gripping tool between the first flange portion and the second flange portion before relatively inserting the first jig to remove the liquid. 9. The method for manufacturing the container insert according to any one of claims 5 to 8, comprising a step of gripping the containing bag. a container having an opening communicating with the internal space;
a container insert assembled in the opening,
The container insertion tool has one end and is detachably attached to the opening such that the one end is located in the internal space, and has a storage space, wherein the liquid extraction tube is a liquid containing bag attached to the liquid take-out pipe so as to contain the one end side in the containing space;
The liquid containing bag includes a spout into which the liquid extraction tube is removably inserted, and a bag joined to the spout,
The bag body includes a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion joined to each other. , and a sealing portion that forms the accommodation space between the first seat portion and the second seat portion,
The liquid containing bag is arranged in the internal space of the container,
The second sheet portion covers the one end side of the liquid take-out pipe housed in the accommodation space along the one end side of the liquid take-out pipe, and the first sheet portion covers the one end side of the liquid take-out pipe. Approaching one end side, the bag is positioned so that the seal portion is positioned between the first sheet portion located on the outermost periphery and the second sheet portion covering the one end side of the liquid take-out pipe. An assembly of a container and a container insert, wherein the liquid containing bag is attached to the liquid extraction tube in a state where the body is folded. providing a container having an opening communicating with the interior space;
providing a container insert for assembly into the opening;
assembling the container insert into the opening;
The container insertion tool has one end and is detachably attached to the opening, and has a storage space, wherein the one end side of the liquid extraction pipe is stored in the storage space. and a liquid storage bag attached to the liquid take-out pipe,
The liquid containing bag includes a spout into which the liquid extraction tube is removably inserted, and a bag joined to the spout,
The bag body includes a first sheet portion joined to the spout, a second sheet portion superimposed on the first sheet portion, and peripheral edge portions of the first sheet portion and the second sheet portion joined to each other. , and a sealing portion that forms the accommodation space between the first seat portion and the second seat portion,
The second sheet portion covers the one end side of the liquid take-out pipe housed in the accommodation space along the one end side of the liquid take-out pipe, and the first sheet portion covers the one end side of the liquid take-out pipe. Approaching one end side, the bag is positioned so that the seal portion is positioned between the first sheet portion located on the outermost periphery and the second sheet portion covering the one end side of the liquid take-out pipe. The liquid containing bag is attached to the liquid take-out pipe in a state where the body is folded,
In the step of assembling the container insertion tool into the opening, the liquid extraction is performed such that the one end of the liquid extraction tube is positioned in the internal space and the liquid containing bag is arranged in the internal space of the container. A method of manufacturing a container and container insert assembly, wherein a tube is fitted into said opening.

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