JP2004188343A - Self expansion type bag and product of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a self expansion type bag convenient to carry and easily and sufficient expansive and a product comprising the bag. <P>SOLUTION: The self expansion type bag contains a gas generator in the inside and the gas generator comprises a first container containing a reaction solution in the inside and provided with a seal part openable for leading the reaction solution to the outside, a second container housing the first container in the inside and provided with a control hole for controlling the amount of the flowing reaction solution, and a third container housing at least the second container and a gas generating agent in the inside. The self expansion type bag is a floating bag or an air cushion. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a self-inflating bag and a product comprising the same, and more particularly to an automatic inflatable bag capable of efficiently inflating the bag automatically and a product comprising the same.
[0002]
[Prior art]
Conventionally, for example, when using a floating bladder, first carry the floating bladder to the sea or a pool without enclosing air in a tube-shaped floating bladder made of resin, etc. The air was sealed in a floating bag. As a method for enclosing air in the bladder, there is a method using an air pump, or a method in which a person directly blows air into the bladder.
[0003]
However, when an air pump is used, it is necessary to carry the air pump to the sea, a pool, or the like only to enclose air in the bladder.
[0004]
In addition, when a person directly blows into a swim bladder, the swim bladder does not easily expand, and when the swim bladder is finally inflated, the human may be exhausted.
[0005]
Therefore, Patent Literature 1 discloses that a bag is automatically filled with a generated gas obtained by enclosing sodium bicarbonate (sodium bicarbonate) and a solvent for dissolving the sodium bicarbonate in the inside of the bag and causing them to act upon use. Is disclosed.
[0006]
Patent Document 2 discloses a device that generates gas in response to intrusion of seawater and inflates a bladder with the generated gas.
[0007]
Further, Patent Literature 3 discloses a technique in which, in a waist bag in which a bladder is stored in a folded state, an operation switch is pressed to inflate air from the small cylinder into the bladder, thereby removing the inflated bladder from the waist bag. ing.
[0008]
[Patent Document 1]
JP-A-56-139787 [0009]
[Patent Document 2]
JP-A-1-153169
[Patent Document 3]
JP 2001-310795 A
[Problems to be solved by the invention]
However, in the method disclosed in Patent Document 1, since baking soda and its solvent act at once, they may not react sufficiently. Therefore, generated gas was hardly obtained, and the inflation of the bag body was sometimes insufficient.
[0012]
In addition, the device disclosed in Patent Document 2 needs to be carried together with the bladder, and thus has a problem that it is very inconvenient to carry.
[0013]
Furthermore, in the technique disclosed in Patent Document 3, since the bladder and the waist bag are connected by a piping path, there is a problem that the waist bag may hinder the use of the bladder. Further, when the waist bag is detached after the inflating of the bladder, there is a problem that air of the bladder escapes from the connecting portion and the bladder cannot be used.
[0014]
In view of the above circumstances, an object of the present invention is to provide a self-inflating bag body which is convenient to carry and can easily and sufficiently inflate the bag body, and a product comprising the same.
[0015]
[Means for Solving the Problems]
The present invention is an automatic inflatable bag body containing a gas generator therein, wherein the gas generator contains a reaction solution inside and has an openable seal portion for allowing the reaction solution to flow out. A first container provided with, a first container housed therein, a second container provided with a control hole for controlling the amount of the reaction solution that has flowed out, and at least a second container and a gas generating agent therein. It is an automatic inflatable bag including a third container accommodated therein.
[0016]
Here, in the self-inflating bag according to the present invention, the gas generator may include a fourth container accommodating the third container therein, and a hole may be formed in a surface of the fourth container.
[0017]
In the self-inflating bag according to the present invention, the gas generator may have an outlet for letting out the generated gas.
[0018]
Further, the present invention is a floating bag comprising the above-mentioned self-inflating bag.
Further, the present invention is an air cushion comprising the above-mentioned self-inflating bag.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
(Embodiment 1)
FIG. 1A shows a schematic perspective view of a floating bag before inflation, which is a preferred example of an automatic inflatable bag according to the present invention. In FIG. 1 (A), the bladder 1 includes a ring-shaped tube 2 made of resin and a gas generator 3 housed in the tube 2. In the drawings of the present application, the same reference numerals represent the same or corresponding parts.
[0020]
As shown in a schematic top perspective view of FIG. 1B, for example, the gas generator 3 contains a first container 4 containing a reaction liquid 7 and a weak seal portion 11 formed therein, and a first container 4. The second container 5 includes a second container 5, a third container 6 containing the oxygen generating agent 8 and the catalyst 9 and having a weak seal portion 11a formed therein. A hole 10 is formed.
[0021]
In the air bladder 1 according to the present invention having such a configuration, the reaction solution 7 that has flowed out when the gas generator 3 is grasped from the outside and the weak seal portion 11 of the first container 4 is opened is removed from the surface of the second container 5. The flow rate is controlled according to the size of the control hole 10 by the slit-shaped control hole 10 provided in the second container 5 and flows out of the second container 5.
[0022]
Therefore, in the present invention, the reaction liquid 7 flowing out of the second container 5 and the oxygen generating agent 8 and the catalyst 9 accommodated in the third container 6 are allowed to gradually act to react sufficiently. As a result, it is possible to generate a sufficient amount of oxygen to inflate the bladder 1.
[0023]
Then, the generated oxygen opens the weak seal portion 11a of the third container 6, and flows into the tube 2 to expand the bladder 1. Therefore, in the present invention, the gas generator 3 is merely grasped by hand from the outside. Thus, the bladder 1 can be easily inflated automatically.
[0024]
Here, the first container 4, the second container 5, and the third container 6 can be composed of a multilayer film or the like including a resin film layer. As the multilayer film used in these containers, for example, a multilayer film composed of a polypropylene film layer / aluminum-deposited layer / polyethylene film layer in order from the outside of the container is preferably used. In this case, water vapor can be effectively blocked by the intermediate aluminum vapor deposition layer.
[0025]
In the multilayer film, for example, a polyester film layer or the like may be used instead of the polypropylene film layer, or a silica-deposited layer or the like may be used instead of the aluminum-deposited layer.
[0026]
Each of these containers is sealed with an adhesive or a heat-sealing seal after accommodating the contents to be accommodated.
[0027]
Examples of the adhesive used for the seal include a solvent adhesive using a ketone-based solvent, an ester-based solvent, an ether-based solvent, a hydrocarbon-based solvent, a halogenated hydrocarbon-based solvent, or a resin such as a modified olefin or a hot melt. An adhesive or the like is used.
[0028]
As a method of heat sealing, for example, a method in which the inner walls of the container are brought into contact with each other, and then the inner wall of the container is heated and sealed from the outer wall of the container by heat sealing, impulse sealing, or ultrasonic bonding, A method of heating and sealing the inner wall of the container that is in contact with the container by bonding or the like is used.
[0029]
Here, the sealing strength of the weak seal portion 11 of the first container 4 is set weaker than that of the other seal portions to such an extent that the weak seal portion 11 can be opened. With such a configuration, the weak seal portion 11 is opened by the internal pressure generated in the first container 4 when the gas generator 3 is grasped from the outside, and the reaction contained in the first container 4 is performed. The liquid 7 can be easily discharged.
[0030]
Here, when the internal pressure of the first container 4 becomes 0.01 to 1.0 kgf / cm ² , the sealing strength of the weak seal portion 11 of the first container 4 is particularly 0.05 to 0.5 kgf / cm 2. It is desirable that the seal strength be such that it peels off when it becomes ² . When the sealing strength of the weak seal portion 11 is less than 0.01 kgf / cm ² , the weak seal portion 11 tends to be easily opened at the time of manufacture, transportation, storage, and the like other than when the bladder 1 is used. . If it exceeds 1.0 kgf / cm ² , the weak seal portion 11 tends to be difficult to open, and the reaction liquid 7 tends to be difficult to flow out.
[0031]
In addition, it is preferable that the weak seal portion 11a is also formed in the third container 6 as described above. In this case, the weak seal portion 11a is opened by the internal pressure generated in the third container 6 due to the generation of oxygen, and the oxygen generated from the third container 6 can be more easily discharged. .
[0032]
Here, when the internal pressure of the third container 6 becomes 0.01 to 1.0 kgf / cm ² , the sealing strength of the weak seal portion 11 a of the third container 6 is particularly 0.05 to 0.5 kgf / cm 2. It is preferable that the seal strength is such that it peels off when it becomes ² . If the pressure is less than 0.01 kgf / cm ² , the sealing strength of the weak seal portion 11a of the third container 6 is too weak to open before oxygen is generated, and the contents such as the oxygen generating agent 8 are stored in the third container 6. 6 may be spilled, and if it exceeds 1.0 kgf / cm ² , the weak seal portion 11a is hard to peel off, and the generated oxygen tends to hardly flow out of the third container 6.
[0033]
Further, as the gas generator 3, for example, as shown in a schematic top perspective view of FIG. 2, a gas generator in which a third container 6 is accommodated in a fourth container 13 having small holes 12 formed on the surface may be used. it can. In this case, the oxygen generated in the third container 6 can gradually flow out of the small holes 12 formed in the fourth container 13 into the tube 2 and inflate the bladder 1. Sometimes, the bladder 1 is less likely to burst.
[0034]
Here, the small holes 12 may be, for example, triangular, quadrangular or pentagonal in addition to the circular shape.
[0035]
The fourth container 13 may be made of the same material as the first container 4, the second container 5, or the third container 6.
[0036]
As the gas generator 3, for example, as shown in a schematic top perspective view of FIG. 3, a gas outlet having a discharge port 15 formed of a resin molding or the like having a lid 14 formed therein is used in the third container 6. You can also. In this case, the lid 14 is removed by the internal pressure generated in the third container 6 due to the oxygen generated in the third container 6, and the generated oxygen can be discharged from the outlet 15.
[0037]
Further, as the gas generator 3, for example, as shown in a schematic top perspective view of FIG. 4, an outlet 15 provided with a lid 14 can be formed in the fourth container 13. In this case, the lid 14 is removed by the internal pressure generated in the fourth container 13 due to the oxygen generated in the third container 6 flowing into the fourth container 13, and the generated oxygen is discharged to the outlet 15. Can be discharged from
[0038]
In the above embodiment, the bladder 1 has a ring shape, but the bladder 1 may have a triangular prism shape, a quadrangular prism shape, a cylindrical shape, or the like.
[0039]
In the above embodiment, the bladder 1 is expanded by generating oxygen, but the bladder 1 may be expanded by a gas other than oxygen.
[0040]
Further, for the first container 4, the second container 5, and the third container 6, for example, a molded container made of resin or the like may be used other than the multilayer film including the resin film layer.
[0041]
As the reaction solution 7, for example, distilled water or the like can be used, and the reaction solution 7 may contain manganese dioxide, catalase, alcohol, or the like as long as the oxygen generating agent 8 can be dissolved. When a solution containing manganese dioxide or catalase is used as the reaction solution 7, the catalyst 9 need not be contained in the third container 6. Further, the reaction solution 7 may contain an appropriate amount of a preservative such as benzoic acid or sodium benzoate.
[0042]
Further, as the oxygen generating agent 8, for example, sodium carbonate / hydrogen peroxide (sodium percarbonate) powder or the like can be used. Further, in order to protect the oxygen generating agent 8, a desiccant (stabilizing agent) or an adhesive (binder) can be added to the oxygen generating agent 8 as needed.
[0043]
As the catalyst 9, for example, an inorganic salt such as manganese dioxide, manganese sulfate, or manganese chloride, or a catalase that decomposes peroxide can be used.
[0044]
Further, the control hole 10 may be not only a U-shaped slit but also a small circular hole, a linear or U-shaped slit, or the like.
[0045]
In the above embodiment, it goes without saying that the lid 14 does not have to be provided at the outlet 15.
[0046]
(Embodiment 2)
FIG. 5A is a schematic perspective view of an air cushion before inflation, which is a preferred example of the self-inflating bag according to the present invention. In FIG. 5A, the air cushion 16 includes a resin mat 17 and the gas generator 3 housed in the mat 17.
[0047]
As shown in FIG. 5A, before the air cushion 16 is inflated, the sheet-like mat 17 containing the gas generator 3 is folded. When the air cushion 16 is used, the gas generator 3 is grasped from the outside by hand, and the reaction liquid reacts with the oxygen generating agent and the catalyst to generate oxygen, whereby the mat 17 expands. A rectangular pillar-shaped air cushion 16 as shown in FIG. 5 (B) is formed.
[0048]
In the above-described embodiment, the inflated air cushion 16 has a quadrangular prism shape, but may have a columnar shape, a triangular prism shape, a ring shape, or the like.
[0049]
The other description is the same as that of the first embodiment, and the description is omitted.
The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
[0050]
【The invention's effect】
As described above, according to the present invention, it is possible to provide an automatic inflatable bag body which is convenient to carry, can easily and sufficiently inflate the bag body, and a product comprising the same.
[Brief description of the drawings]
FIG. 1A is a schematic perspective view of a floating bag before inflation, which is a preferred example of the present invention, and FIG. 1B is a schematic top perspective view of a gas generator used in the present invention.
FIG. 2 is a schematic top perspective view of another example of the gas generator used in the present invention.
FIG. 3 is a schematic top perspective view of another example of the gas generator used in the present invention.
FIG. 4 is a schematic top perspective view of another example of the gas generator used in the present invention.
FIG. 5A is a schematic perspective view before use of an air cushion which is a preferred example of the present invention, and FIG. 5B is a schematic perspective view of the air cushion after inflation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Flying bag, 2 tubes, 3 gas generators, 4 first containers, 5 second containers, 6 third containers, 7 reaction liquids, 8 oxygen generators, 9 catalysts, 10 control holes, 11 weak seal parts, 12 small holes , 13 fourth container, 14 lid, 15 outlet, 16 air cushion, 17 mat.

Claims (5)

An automatic inflatable bag containing a gas generator therein,
The gas generator is
A first container containing a reaction liquid therein and having an openable seal portion for allowing the reaction liquid to flow out,
The first container is housed therein, and a second container provided with a control hole for controlling the amount of the reaction solution that has flowed out,
A third container containing at least the second container and the gas generating agent therein,
An automatic inflatable bag body comprising: 2. The self-inflating bag according to claim 1, wherein the gas generator includes a fourth container containing a third container therein, and a hole is formed in a surface of the fourth container. The self-inflating bag according to claim 1 or 2, wherein the gas generator has an outlet for letting out generated gas. A floating bag comprising the self-inflating bag according to claim 1. An air cushion comprising the self-inflating bag according to claim 1.

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