JPH10316151A - Double container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the housing of a container after usage or when not being used by a method wherein the container is equipped with an external bag comprising at least two sheets, and an internal bag comprising at least two sheets, and an independent opening is respectively provided on a filling part which is formed by the external bag and the internal bag, and the hollow part in the internal bag. SOLUTION: At the top of a bag-shaped external container 2 of this double container 1, a port 4 which works as a charging port and a discharging port for a content, is provided, and for the port 4, a detachable sealing plug 5 is provided. Also, the lower end 7 of the external container 2 is opened, and an internal container 3 which is welded at the opening, is provided in such a manner that the opening 7 may face downward, and the internal container 3 may have a depth unded an upside-down state to the top of the external container 2. By fixing the bottom corners 9 of the internal container 3 by welding in the vicinity of the upper end of the external container 2, a filling part which is formed by the external container 2 is isolated by the internal container 3, and a hollow part is formed in the external container 2. Then, a cooling material 8, etc., are placed in the internal container 3, and the internal container 3 is sealed by a sealing means 6, e.g. a line fastener, etc., provided at the opening (the lower end of the external container) 7 of the internal container 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple double container for cooling and keeping the contents cool, or for heating and keeping the contents warm.

[0002]

2. Description of the Related Art Conventionally, as containers for containing liquids (including viscous liquids), rigid containers such as water bottles, thermos bottles, cans, and PET bottles, as well as flexible bag-shaped containers have been used.
In the case of cooling / cooling or heating / heating, these are put together in a refrigerator or heated, and for example, when they are transported, they are put in a cool box or a warm box.

[0003] In particular, drinks are often prepared for excursions and the like, but in recent years, as large-capacity PET bottles of 1.5 liters or more have become widespread, there are other stored (refrigerated) items in general household refrigerators. Regardless, it was very difficult to store such a large container in the refrigerator.

[0004] If the cooling is insufficient, the temperature will rise before the vehicle reaches the destination.

Further, taking a PET bottle as an example, the container after drinking becomes garbage and is confused for disposal. In general, rigid containers always have a constant shape, so they take up considerable space in storage when not in use. The greater the capacity, the greater the storage problem.

[0006] For this reason, recently, a reusable cooling material has become widespread, and only the refrigerating material is frozen in a freezer in advance and put in a cooler box or the like together with a plastic bottle or the like to achieve cooling or raise the temperature. Preventing.

[0007]

However, when a cold insulator is used, the adhesiveness to a PET bottle or the like is poor, so that heat conduction is poor and the material cannot be cooled more than expected. When a cool box such as a cooler box is used, the more the dead space in the cool box, the lower the cooling performance. This is because cooling is performed through the air in the dead space.

[0008] Further, the temperature is increasing only after being taken out of the cool box. In other words, taking drinks as an example, if it takes a long time to finish drinking even if it is cold at the beginning,
The last one gets slimy. Similarly, in the case of heating and keeping warm, it is hot immediately after it is taken out of the warm storage, but becomes warm with time.

Further, regarding the problem of treating the container after drinking, the above-mentioned means have not solved the problem at all.

The double container of the present invention is intended to solve the above-mentioned drawbacks of the prior art, and is provided with cooling / cooling or heating / heating.
An object of the present invention is to provide a double container that is easily kept warm and easily stored after use or when not in use.

[0011]

That is, the double container of the present invention comprises an outer bag comprising at least two sheets and an inner bag comprising at least two sheets, and is formed by the outer bag and the inner bag. The filling portion and the hollow portion inside the inner bag are provided, and the filling portion and the hollow portion each have an independent opening.

[0012] The double container of the present invention comprises an outer bag made of at least two sheets and an inner bag made of at least two sheets, and a filling portion formed by the outer bag and the inner bag and the inside of the inner bag. In a double container having a hollow portion and an independent opening in each of the filling portion and the hollow portion, a valve is provided in the opening of the filling portion.

[0013] The double container is characterized in that the valve provided at the opening of the filling section is an automatic closing valve.

Further, the double container of the present invention comprises an outer container and an inner container, and has a filling portion formed by the outer container and the inner container and a hollow portion inside the inner container, and the filling portion and the hollow portion are respectively provided. It is also characterized by having an independent opening.

Further, the double container of the present invention is characterized in that a protective tube is arranged inside or outside the hollow portion.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the double container of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing a first embodiment of a double container according to the present invention. The double container 1 has a bag-shaped outer container 2 provided with an opening 4 also serving as an inlet or an outlet for the contents at the top, and a detachable sealing stopper 5. In the figure, a screw-type cap is used. The lower end 7 of the outer container 2 is an opening, and the inner container 3 welded at the opening is provided so as to have a depth upside down with the opening 7 turned upside down. I have. The bottom corner 9 of the inner container 3 is welded and fixed near the upper end of the outer container 2, and when the contents are put in the outer container 2, the inner container 3 is opened through the opening 7 at the lower end.
Is not pushed out.

The lower end opening 7 of the outer container 2 is
Therefore, the opening 7 is securely welded and sealed, so that the filling portion 10 of the outer container 2 is formed so that the contents thereof do not leak. That is, the filling part 10 formed by the outer container 2 is isolated by the inner container 3, and the hollow part 11 is formed by the inner container 3 inside the outer container 2. The opening (lower end of the outer container) 7 of the inner container 3 is provided with a sealing means 6 such as a line fastener so that the contents in the inner container 3 do not come out. If the sealing means 6 is of a waterproof type, it is possible to put a melting substance such as ice inside. In the figure, reference numeral 8 denotes a cold insulator or a coolant. In the following, the cold insulator 8 includes a coolant. When heating and keeping the temperature, this may be replaced with a heat storage material.

As a material forming the double container 1 of the present invention, for example, a plastic material or a material composed of a composite sheet of these materials and aluminum foil is used for general purpose, workability, and after dusting. It has been confirmed that the present invention is extremely suitable for solving the above-mentioned problems in terms of processability and the like.

FIG. 2 is a vertical sectional view of the double container 1. As shown in FIG.
When using this double container, the cold insulator 8 previously frozen in the freezer is inserted into the hollow portion 11 of the inner container 3, and the line fastener 6 is fastened. Then, the contents (for example, soft drink) 12 is injected from the pouring inlet 4. Contents 12 first
Of course, the coolant 8 may be inserted after the filling, but when the contents 12 enter the filling portion 10 of the outer container 2, the inner container 3 comes into close contact with the internal pressure, making it difficult to insert. . The cold insulator 8 is of a type that freezes the refrigerant in a freezer, or a type that instantly drops below freezing by a chemical reaction when two liquids are mixed by applying an impact (for example, Hyalon (trade name) manufactured by Lotte Corporation). Etc. are preferably used.

FIG. 3 is a cross-sectional view of the double container 1 of the present invention. Cooling material 8 inserted into inner container 3 surrounds outer container 2.
The content 12 is in close contact with the cold insulator 8 due to the internal pressure. Therefore, while the content 12 itself of the outer container 2 is directly cooled by the cooling material 8, the cooling material 8 is prevented from directly contacting the outside air, so that the temperature does not rise rapidly.

For reference, according to the test by the applicant, the cooling performance of the double container 1 is as shown in Table 1 below. (Below)

[0023]

[Table 1] According to this result, it can be seen that the cooling material 8 continues to cool even after 3 hours, and still maintains a high cooling state even after 10 hours.

Therefore, what can be said from this result is:
For example, when carrying 1 liter of water for excursions, etc., if the entire 1 liter of water is moved for 1 hour without being cooled in a refrigerator or the like, the room temperature water is added to the filling section 10 of the double container 1 of the present invention. If the heat insulating material 8 is put in the hollow portion 11, it can be cooled to a required temperature before reaching the destination. In this case, it is not necessary to put water in the limited refrigerator space and cool it down, so it is possible to put other things in the refrigerator's water space and cool it, and use the limited space efficiently. You can do it.

After use, it may be folded in a bag shape.
Further, the inside can be cleaned and used again.

FIG. 4 shows a second embodiment of the double container 1 of the present invention, in which the opening 7 of the inner container 3 is provided above the pouring port 4 of the outer container 2. In the figure, 14 is the hollow portion 1
It is ice put in 1. In the figure, (a) shows that the sealing means 6 of the inner container opening 7 is formed by a line fastener,
(B) shows a case where an opening 15 having a screw cap 5 similar to the injection opening 4 of the outer container 2 is provided as the sealing means 6.

The following variations are possible in the double container 1 of the present invention.

FIG. 5 shows a double container according to a third embodiment of the present invention, in which the filling portion 10 of the outer container 1 is further divided into a plurality of spaces. 2A, the filling portion 10 of the outer container 2 is divided into right and left parts 16 and 17 so that a plurality of different contents can be put therein. An exclusive pouring port 4 is provided at the upper end of each of the storage spaces 16 and 17, and a sealing plug 5 (a screw cap in the figure) is provided in each. When using, for example, the right room 1
7 can be filled with orange juice and the left room 16 with apple juice. Furthermore, if the ice 14 is put in the hollow portion 11 of the inner container 3, when the whole is cooled and the ice is melted, drinking as cold water becomes possible.

FIG. 3B shows a case where the inner container 3 is sandwiched between two outer containers 2 and 2 ′.

FIG. 6 shows a fourth embodiment of the double container according to the present invention, in which an automatic closing valve 111 is provided at the pouring port 4 of the outer container 2. (A) is a front view and (b) is a longitudinal sectional view thereof. A fixed knob 18 is provided above the pouring opening 4, and a tubular member 20 is slidably mounted inside the knob 18 by a knob 19. Further, a drinking spout 21 is provided thereon. Although the function of the automatic closing valve 111 will be described later, when the tubular member 20 is pushed into the automatic closing valve 111 which is normally closed, the automatic closing valve 111 is opened and the contents can be poured out. Then, by pulling out the tubular member 20, the automatic closing valve 111 is closed again.

FIG. 7 shows a fifth embodiment of the double container according to the present invention, which is applicable to a rigid container such as a PET bottle. That is, an inner container 3 protruding from the bottom is provided in the outer container 2, and a cooling material 8 adapted to the hollow portion 11 in the inner container 3 is enclosed. 22 is a bottom cap. Since the cold insulator 8 is sufficiently smaller than the size of the entire container, even if a plurality of cold insulators are used, the space occupied by these in the freezer can be reduced. Cleaning and re-use compared to bag-shaped flexible containers
Easy drying is also an advantage of the rigid container.

FIG. 8 shows a further example of this application in the case where the inner bag 3 is brought into close contact with the inner portion 3 of the flexible outer bag 2 due to the internal pressure of the contents when the filling portion is first filled with the contents. Inner bag 3
Is provided with a protective cylinder 23 for preventing the close contact.
The protective cylinder 23 is preferably made of a hard material. Further, it is not always necessary to be provided inside the inner bag 3, and it is a matter of course that it may be provided outside the inner bag.

The details of the automatic closing valve 111 used in the example shown in FIG. 6 will be described below.

FIG. 9 shows an automatic closing valve 111.
1 shows an openable / closable passage body made of a soft sheet. The passage body 31 can be formed by laminating two soft sheets, and the passage portion 32 can be opened in a cylindrical shape. Further, on both sides of the passage portion 32, slip stoppers 33 which hold the passage body 31 by being sandwiched between a support and an elastic body described below are formed. 34 stopper piece 3
3 is a guide portion of the passage body 31 protruding from the position 3.

As the passage body 31, a soft sheet to be used is desirably selected from a rubber sheet, a plastic sheet, a waterproof paper, a waterproof cloth, an aluminum foil or a composite sheet thereof.

FIG. 9A shows a case where the passage portion 32 of the passage body 31 is closed, and FIG. 9B shows a case where the passage portion 32 of the passage body 31 is open. This shows a passing state.

FIG. 10 shows the passage portion 32 of the passage body 31 as 2
This shows a case where two soft sheets are bonded together and heated and welded. In the figure, (a) shows a tapered passage portion 32 which is narrowed toward the opposite side of the guide portion 34. (B) shows the passage portion 32 which is narrowed toward the opposite side of the guide portion 34 and further has a cylindrical shape. (C) shows a passage portion 32 which has a predetermined width toward the opposite side of the guide portion 34 and then narrows down, and further has a cylindrical portion. (D) is the guide portion 34
3 shows a passage portion 32 formed in a cylindrical shape having the same diameter as that of FIG.

It is desirable that the width of the passage portion 32 of the passage body 31 be such that the passage of gas, liquid, viscous material, etc. is reasonable and that the entire automatic closing valve 111 does not become large. Of course, when the filling operation is performed with a rod-shaped body such as a straw, it is desirable that the size be in accordance with the diameter of the rod-shaped body to be inserted.

The means for forming the passage portion 32 in the passage body 31 is preferably a means for bonding two soft sheets and heat-welding at the portion of the slip stopper 33, but it is a matter of course that other forming means may be used. It is. Slip stopper 33
It is sufficient to weld only the boundary with the passage portion 32 at the time of welding.

FIGS. 10 (a) to 10 (c) show the above-mentioned passage body 3.
FIG. 1 shows an example of a support and an elastic body for opening and closing, particularly automatically closing, by sandwiching 1. The support 35 is formed separately from a sheet-like elastic body 36 (not shown). A lid 38 is formed at the end of the support 35 via a plastic hinge 37 so as to extend in the left-right direction. It is desirable that the support 35, the plastic hinge 37, and the lid 38 be formed into a predetermined shape by injection molding a plastic material made of polyethylene, polypropylene, polyester, polycarbonate, or the like. Of course, the molding method is not limited to this injection molding.

In FIG. 10 (a), holding guides 39 are provided on both upper and lower sides of the support 35, respectively. At the center of the upper end of the support 35, an insertion guide 40 is provided at a position where the rod is inserted.

In the example of FIG. 10 (a), the lid 38 has a guide groove 42 having an arc-shaped cross section for accommodating the passage 31 passing through a rod-like body at substantially the center of a flat plate. The rib 43 for holding down the elastic body 36 is
A pair is formed along the length direction. This rib 43
The length, shape, position and number of the elastic body 36 can be appropriately determined according to the thickness and size of the elastic body 36 and the like. However, it is desirable that the elastic body 36 has a sufficient length, shape, position, and number that does not impair the opening / closing reaction.

Reference numeral 44 denotes a hook for coupling with the support 35 provided at the end of the lid 38. This hook 4
4 is fitted into a receiving hole 45 provided at an end portion of the support 35 so as to penetrate in the thickness direction, and is prevented from falling off. By fixing the support 35 and the elastic body 36 together with the lid 38 in a state of being bent at a predetermined curvature in this way, it is possible to obtain the automatic shut-off valve 111 having extremely excellent durability.

In the example of FIG. 10B, the lid 38 is provided with ribs 4 for holding the elastic body 36 on both sides of the guide groove 42.
3 are formed in a direction perpendicular to the length direction of the passage body 31.

In the example shown in FIG. 10 (c), the lid 38 is connected to a guide groove 42 having a central arc-shaped cross section in a state in which the lid 38 is inclined inward along both ends of the support 35 from the both ends. No ribs 43 are formed for holding down.

In the above, the hook 44 and the receptacle 45
Although the connecting means consisting of is exemplified, not only such connecting means but also other shapes and structures, or means such as heat welding can be used.

The support 35 and the lid 38 may have the same thickness, or may have different thicknesses. Speaking of the relationship with the passage body 31, the support body 35 and the lid body 38 need to have a thickness that does not deform, and the passage body 31 needs to be thin because it requires flexibility. In addition, it needs to have a predetermined thickness. Of course, it is desirable that the elastic body 36 be thicker than the passage body 31.

The material of the passage body 31 and the elastic body 36 can be selected from a plastic sheet, a metal sheet, or a composite sheet using these as a constituent material. Examples of plastic sheets include polyethylene,
Examples include polypropylene, polyester, and polycarbonate. In this case, it is desirable that the passage body 31 be made of the same material.

The thickness of the elastic body 36 is desirably about 0.1 to 0.5 mm when a plastic sheet such as polyethylene is used.
If the dimensions of the support 35 and the elastic body 36 are rectangular, for example, the ratio of the horizontal axis to the vertical axis is preferably about 2 to 1.5: 1. For example, the horizontal axis: the actual size of the vertical axis is 40 mm: 25 m
m, 35 mm: 20 mm, 30 mm: 11 mm, etc.

The radius of curvature when the support 35 and the elastic body 36 are curved is preferably 11 mm to 40 mm. At a small curvature, the force between the support body 35 and the elastic body 36 sandwiching the passage body 31 is strong, and the reaction to the insertion and removal of the tubular body 41 is good. Conversely, by increasing the radius of curvature, the support 3
It is possible to adjust the force for sandwiching the passage body 31 of the elastic member 36 and the elastic body 36, and the force for transferring when pressurized and for inserting and removing the rod-shaped body.

In terms of material, the bag, the passage 31 and the support 35 and the elastic body 36 and the lid 38 which constitute the double container 1 are used.
It is desirable to use a single material for any of the plastic materials and sheets constituting the above. For example, plastic
Alternatively, it has been confirmed that a material formed of a composite sheet of these and an aluminum foil or the like is extremely suitable for solving the above-described problems of the present invention in terms of versatility, workability, and disposability after being turned into a material. ing.

11 to 16, the passage body 31 is sandwiched between the support body 35 and the elastic body 36 so that the automatic closing valve 111 is closed.
Is shown. That is, FIG.
FIG. 12 shows a state in which a long sheet forming the passage body 31 and the elastic body 36 is stored along the holding guide 39 of the support 35, and FIG.
The hook 44 of the lid 38 is fitted into the receptacle 45 of the support 35, and the both sides of the passage 31 are sandwiched. In FIG. 13 showing this completed state, the passage body 31 is
The elastic body 36 is pressed against the support 35 by the rib 43 of the lid 38.

The automatic shut-off valve 111 assembled as described above is held in an arc shape with the passage body 31 curved along with the curvature of the support 35 and the elastic body 36 as shown in FIGS. , And the lid 38 is at the position of the string. By doing so, the shape of the elastic body 36 can be held along the support body 35 by the lid body 38, and the curvature can be surely maintained by the ribs 43, and the passage body 31 is firmly pressed. be able to.

FIG. 17 shows a state in which a straw or other tubular body 41 is inserted into the passage body 31. The self-closing valve 111 is provided with the support body 35 and the elastic body 3 by inserting the tubular body 41 into the passage portion 32 of the passage body 31.
6 to release the close contact of the passage portion 32, which has been closely contacted, to secure the passage. In this embodiment, a straw is used as such a tubular body 41 to secure a more reliable passage.

In FIG. 18, which explains the above operation in more detail, the distal end of a tubular body 41 made of a straw is
Is inserted from the upper end of the guide portion 34. Actually, by attaching an insertion guide to this portion, the tubular body 41 is formed in a shape that allows easy insertion. Then, from FIG.
When the tubular body 41 is gradually pushed down as in the above, the passage portion 32 of the passage body 31 is pushed out together with the elastic body 36.

When the tubular body 41 is further pushed down,
The elastic body 36 pressed against the support body 35 by the lid body 38 is spread over the entire length along the tubular body 41, and the gas, liquid, viscous material, etc. freely flow as shown in FIG. Will be able to Therefore, the filling operation using the tubular body 41 made of the straw can be easily performed.

Conversely, when trying to close the passage portion 32 of the passage body 31, the tubular body 41 may be simply pulled out. That is, the elastic body 36 gradually returns to the original position and closely adheres to the support 35, and the passage portion 32 of the passage body 31 reverses from FIG. It will adhere. At this time, when a pressure is applied to the automatic closing valve 111 to push back the object from the opposite direction, the support 35
The pressure is transmitted to the passage body 31 via the elastic body 36 and the passage body 32 of the passage body 31 is further sealed.

In the above, the passage portion 32 of the passage body 31
Is opened and closed by a tubular body 41 such as a straw, but one end of the passage body 31 is opened, and the object is forcibly moved through the passage portion 32 while being pressed against the elastic force of the elastic body 36. By passing through, press-fitting can also be performed.

In this way, the contents 12 in the filling portion 10 of the outer container 2 are prevented from flowing back and leaking by the automatic closing valve.

As the elastic body 36, a rod-shaped body or an elastic tube having elasticity can be used in place of the sheets, and a silicon tube can be suitably used as the elastic tube.

[0061]

According to the double container of the present invention, it is not necessary to put the bulky container into a cooling or heating means such as a refrigerator when the contents in the container are cooled / cooled or heated / heated. Therefore, space-efficient cooling / cooling and heating / heating can be performed. In addition, since a cold insulator and a heat storage material are included, a constant temperature can be maintained until the contents are exhausted.

Further, by making the container itself a highly flexible bag, the size of the container is reduced as the content is reduced, and the container can be folded when it is empty. However, it was possible to provide a double container that is very easy to store when not in use.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a double container according to the present invention.

FIG. 2 is a longitudinal sectional view thereof. (A) shows a state in which a cooling material is inserted into an inner container, and (b) shows a state in which a cooling material is inserted into an inner container and contents are poured into an outer container.

FIG. 3 is a cross-sectional view thereof.

FIG. 4 is a front view showing a second embodiment of the double container of the present invention. (A) shows the case where a line fastener is used in the mouth of the inner container, and (b) shows the case where a screw cap is used.

FIG. 5 is a front view showing a third embodiment of the double container of the present invention. (A) shows a case where the outer container is separated to the left and right,
(B) shows the case where the inner container is sandwiched by the outer container.

FIG. 6 shows a fourth embodiment of the double container of the present invention.
(A) is a front view, (b) is a longitudinal sectional view.

FIG. 7 shows a fifth embodiment of the double container of the present invention.

9A and 9B show an openable and closable passage body made of a soft sheet, which constitutes the expansion body of the present invention. FIG. 9A shows a case where the passage portion of the passage body is closed, and FIG. 9B shows a passage of the passage body. It is the perspective view and AA sectional view which show the state in which the part was open and the transfer object, such as gas, liquid, viscous material, powder, and granular material, is passing.

FIGS. 10A to 10D are schematic perspective views showing a case in which a passage body is bonded by heating two soft sheets together.

FIGS. 11A to 11C are perspective views each showing an example in which a support and a lid are integrally formed.

FIG. 12 is a perspective view showing an example in which a support and a lid are opened.

FIG. 13 is a perspective view showing a state where a passage body is assembled between the support and the lid.

FIG. 14 is a perspective view showing a state where the support and the lid are combined.

FIG. 15 is an enlarged plan view showing a state where the support and the lid are combined.

FIG. 16 is an enlarged cross-sectional view showing a state where the support and the lid are combined.

FIG. 17 is an enlarged cross-sectional view showing a state where a rod is inserted into a passage body.

FIGS. 18A to 18D are cross-sectional views showing a state in which a rod is inserted into a passage body in a stepwise manner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Double container 2 Outer container 3 Inner container 4 Injection port 5 Screw cap 6 Sealing means 7 Bottom (opening) 8 Cooling material 9 Bottom corner 10 Filling part 11 Hollow part 12 Contents 13 Inner container opening 14 Ice 15 port 16 First filling portion 17 Second filling portion 18, 19 Knob 20 Tubular member 21 Suction port 22 Bottom cap 23 Protective cylinder 31 Passage body 32 Passage portion 33 Slip-stop piece 34 Guide portion 35 Support body 36 Elastic body 37 Hinge 38 Lid 39 Holding guide 40 Insertion guide 41 Rod 42 Guide groove 43 Rib 44 Hook 45 Receptacle 111 Automatic shut-off valve

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[Procedure amendment]

[Submission date] September 5, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a double container according to the present invention.

FIG. 2 is a longitudinal sectional view thereof. (A) shows a state in which a cooling material is inserted into an inner container, and (b) shows a state in which a cooling material is inserted into an inner container and contents are poured into an outer container.

FIG. 3 is a cross-sectional view thereof.

FIG. 4 is a front view showing a second embodiment of the double container of the present invention. (A) shows the case where a line fastener is used in the mouth of the inner container, and (b) shows the case where a screw cap is used.

FIG. 5 is a front view showing a third embodiment of the double container of the present invention. (A) shows a case where the outer container is separated to the left and right,
(B) shows the case where the inner container is sandwiched by the outer container.

FIG. 6 shows a fourth embodiment of the double container of the present invention.
(A) is a front view, (b) is a longitudinal sectional view.

FIG. 7 shows a fifth embodiment of the double container of the present invention.

FIG. 8 shows a sixth embodiment of the double container of the present invention.

9A and 9B show an openable and closable passage body made of a soft sheet, which constitutes the expansion body of the present invention. FIG. 9A shows a case where the passage portion of the passage body is closed, and FIG. 9B shows a passage of the passage body. It is the perspective view and AA sectional view which show the state in which the part was open and the transfer object, such as gas, liquid, viscous material, powder, and granular material, is passing.

FIGS. 10A to 10D are schematic perspective views showing a case in which a passage body is bonded by heating two soft sheets together.

FIGS. 11A to 11C are perspective views each showing an example in which a support and a lid are integrally formed.

FIG. 12 is a perspective view showing an example in which a support and a lid are opened.

FIG. 13 is a perspective view showing a state where a passage body is assembled between the support and the lid.

FIG. 14 is a perspective view showing a state where the support and the lid are combined.

FIG. 15 is an enlarged plan view showing a state where the support and the lid are combined.

FIG. 16 is an enlarged cross-sectional view showing a state where the support and the lid are combined.

FIG. 17 is an enlarged cross-sectional view showing a state where a rod is inserted into a passage body.

FIGS. 18A to 18D are cross-sectional views showing a state in which a rod is inserted into a passage body in a stepwise manner.

[Description of Signs] 1 Double container 2 Outer container 3 Inner container 4 Injection port 5 Screw cap 6 Sealing means 7 Bottom (opening) 8 Cold insulator 9 Bottom corner 10 Filling part 11 Hollow part 12 Contents 13 Inner container opening Part 14 ice 15 mouth 16 first filling part 17 second filling part 18, 19 knob 20 tubular member 21 suction port 22 bottom cap 23 protective cylinder 31 passage body 32 passage part 33 slip stopper 34 guide part 35 support 36 Elastic body 37 Hinge 38 Lid 39 Holding guide 40 Insertion guide 41 Rod 42 Guide groove 43 Rib 44 Hook 45 Receptacle 111 Automatic shut-off valve

Claims (5)

[Claims] 1. An outer bag comprising at least two sheets and an inner bag comprising at least two sheets, comprising a filling portion formed by the outer bag and the inner bag, and a hollow portion inside the inner bag, and A double container comprising a filling part and a hollow part each having an independent opening. 2. An outer bag comprising at least two sheets and an inner bag comprising at least two sheets, comprising a filling portion formed by the outer bag and the inner bag, and a hollow portion inside the inner bag, and A double container characterized in that the filling portion and the hollow portion each have an independent opening, wherein a valve is provided in the opening of the filling portion. 3. The double container according to claim 2, wherein the valve provided at the opening of the filling section is an automatic closing valve. 4. A container comprising an outer container and an inner container, comprising a filling portion formed by the outer container and the inner container and a hollow portion inside the inner container, and further comprising an independent opening in each of the filling portion and the hollow portion. Characterized by a double container. 5. The double container according to claim 1, wherein a protective tube is disposed inside or outside the hollow portion.