JPH09202371A - Aerosol sprayer without misuse and its production method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To normally spray without leakage of a compressed gas to the outside even when the sprayer is used at a slant and easily remove gas from the pressure-resistant container after the raw liquid has been used. SOLUTION: This aerosol sprayer is provided with a mountain cap 23 fitted to the opening 22 of a pressure-resistant container, a valve device 25 piercing the cap, and a spray button 26 fitted to the upper part of the valve device. Either compressed gas 30 or liquefied gas or both and a raw liquid 31 are injected in the pressure-resistant container 21 to freely jet the raw liquid from the jetting hole by the pressurized gas force. An extensible balloon charged with at least one of the compressed gas and the liquefied gas is contained in the pressure-resistant container 21 and the raw liquid is infected into the pressure-resistant container of the outside of the balloon and the pressurized gas is forced to act on the raw liquid through the balloon.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an aerosol injector and a method for manufacturing the same.

[0002]

2. Description of the Related Art An aerosol injector is usually composed of a pressure-resistant container, a valve and an injection button. After the stock solution is injected into the pressure-resistant container and a valve is attached, a spray agent is filled and an injection button is attached. As a result, an aerosol injector is manufactured. Further, as the propellant filled in the pressure resistant container, various freons such as LPG and DME have been conventionally used. However, a large-scale ozone depletion was discovered due to a large amount of CFC emission, and in 1985
After the Montreal Declaration issued in the year, the use of CFCs began to be gradually restricted, and now mainly LP is used.
G, DME, and mixed gases thereof have been widely used. However, these gases are flammable due to their physicochemical properties, and require strict care and control in the production of products, and further, the storage and transportation of products, the process of distribution, and the hand of consumers. Up to consumption and disposal,
Safety management is screamed by the label of the product or by various means such as advertisement. Against this background, research and development have recently been conducted to switch the propellant from the flammable gas species to the non-combustible gas species.

Nitrogen gas, which is a nonflammable or highly safe gas species and can be used as an aerosol propellant,
Carbon dioxide, air, laughing gas, oxygen gas, helium gas,
Argon gas and the like are conceivable, most of them are called compressed gas, and some of them actually use these compressed gas. However, there is a technically serious problem in obtaining an aerosol product using the compressed gas. First, the solubility of the compressed gas in the stock solution is very low, and the proportion of the compressed gas dissolved in the stock solution (mainly liquid) is very small. For example, nitrogen gas dissolves in purified water at a temperature of 25 ° C. at only 0.01434 volume of nitrogen gas per volume of water. Therefore, when filling 160 ml of purified water into a normal 289 ml pressure vessel for aerosol, the internal pressure of the pressure vessel due to nitrogen gas is set to 2
When the pressure is 7.2 kg / cm ² at 5 ° C., the nitrogen gas filled in the pressure vessel is only 1.3 g in terms of weight, which is an extremely small amount for an aerosol injector.

When the amount of compressed gas dissolved is small,
There is a problem that so-called misuse is likely to occur, and this misuse will be described below. A cross-sectional structure of an example of a general aerosol injector is shown in FIG. 11 (A). The aerosol injector 1 of this example includes a metal pressure-resistant container 2, a mountain cup 4 that closes its mouth 3, and a mountain cup. 4, a valve device 5 provided vertically penetrating, an injection button 6 provided on the upper part of the valve device 5, and a dip tube 7 connected to the lower part of the valve device 5 and reaching the bottom part of the pressure vessel 2. It is configured as a main body, the stock solution 8 is injected into the bottom side of the pressure vessel 2, and the compressed gas 9 is injected into the space above it.
Are filled and configured. When the injection button 6 is pressed in a state where the aerosol injector 1 having such a configuration is upright as shown in FIG. 11 (A), the stock solution 8 containing the active ingredient in the injector is compressed by the compressed gas 9. In response to this, the dip tube 7 is pushed up from the lowermost end (the most distal end), rises in the dip tube, passes through the released valve device 5, and is injected into the atmosphere from the injection button 6.

However, when the stock solution 8 has decreased, the aerosol injector 1 is often used by inclining it as shown in FIG. 11B. In this case, the lower end of the dip tube 7 reaches the compressed gas part. If it happens, the compressed gas 9 will be injected to the outside through the dip tube 7. In this way, ejecting the compressed gas 9 without injecting the undiluted solution 8 is referred to as misuse.
It tends to occur when tilted as shown in (B), and also when the aerosol injector 1 is used upside down as shown in FIG. 12, even when the stock solution 8 is sufficiently left. It is easy to happen. When this misuse occurs, the amount of compressed gas in the pressure resistant container 2 is significantly reduced, and the pressure in the pressure resistant container 2 is drastically reduced.

The pattern of injection in the aerosol injector 1 is obtained by a combination of a carefully designed injection button 6 and the injection pressure required for it. Therefore, if it seems that the compressed gas is reduced due to the misuse, there is a problem that the injection pattern becomes poor due to the pressure reduction in the pressure resistant container 2. That is, the mist of the injected undiluted solution becomes coarse, or the injection pattern becomes a rod shape instead of a divergent shape, which not only lowers the product value but also may possibly make the injection impossible thereafter. At present, in order to prevent such misuse, a warning or caution is printed on the outer surface of the pressure resistant container 2 not to be used to cause misuse, or a mark indicating the injection direction is printed on the mouth of the pressure resistant container 2. However, it is practically difficult to prevent misuse with the aerosol injector 1 having the conventional structure, which is an obstacle to the widespread use of the aerosol injector having compressed gas as the propellant. It was

[0007]

By the way, in order to solve these problems, some structures have been proposed in the past. FIG. 13 shows an example of this type of aerosol injector. In the aerosol injector 1A of this example, the dip tube 7 is composed of a flexible flexible tube 10 having a small diameter, and the tip of the flexible tube 10 has a spindle type. Weight 11
It is configured by attaching. Even if the aerosol injector 1A of this example is used with a slight inclination, the weight 1
Since 1 is surely moved to the bottom side of the undiluted solution 8 by the action of gravity, the undiluted solution 8 is surely sucked up by the dip tube 7 and the undiluted solution can be properly ejected. However,
Even in the aerosol injector 1A having this structure, when the aerosol container 1A is tilted at various angles or used upside down, the tip side of the flexible tube 10 is curved at the bottom of the pressure container 2. Occasionally, a part or the like could not move freely due to being blocked from moving. For example, when the aerosol injector 1A is used upside down as shown in FIG.
1 could not be moved to the undiluted solution 8 side, which could lead to misuse.

FIG. 15 shows another example of this type of aerosol injector. In the aerosol injector 1B of this example, a thin bellows member 12 is attached to the middle of the dip tube 7 and a weight 13 is attached to the tip side. It is installed and configured. Even if the aerosol injector 1B of this example is used in a slightly inclined state similarly to the configuration of FIG. 13, the weight 13 moves to the bottom side of the stock solution 8 so that the stock solution can be correctly injected. In the structure, as shown in FIG. 16, when the undiluted solution is tilted and used, the weight 13 rides on the curved bottom surface 2a of the pressure vessel 2 and the dip tube 7
In some cases, the stock solution 8 could not be sucked in, which could lead to misuse.

The present invention has been made in view of the above circumstances, and when the compressed gas is used and the injector is tilted in any direction, the compressed gas is externally supplied. It is possible to reliably obtain a normal undiluted solution injection state without leaking into the liquid, and to use a compressed gas or a liquid gas, and to provide a misuse-free aerosol injector that can easily degas the pressure vessel after using the undiluted solution. The purpose is to provide a manufacturing method thereof.

[0010]

In order to solve the above problems, the present invention provides a pressure resistant container having a mouth, a mountain cup attached to the mouth of the pressure resistant container with the mouth closed, and a mountain cup. Equipped with a valve device penetrating through the valve, and an injection button that has an injection port and is installed on the upper side of the valve device outside the mountain cup to open and close the valve device. An aerosol injector in which at least one of the gas and the undiluted solution is injected, and the undiluted solution is configured to be freely ejected from the injection port of the injection button via the valve device by the pressure of the gas. An expandable balloon filled with at least one of compressed gas and liquefied gas is stored, and the stock solution is injected into a pressure vessel outside the balloon, and the pressure of the gas is applied through the balloon. It is made by acting on. Further, in the present invention, a pressure container having a mouth, a mountain cup attached to the mouth of the pressure container with the mouth closed, a valve device penetrating the mountain cup, and an injection port are provided. It has an injection button attached to the upper side of the valve device outside the mountain cup to open and close the valve device, and at least one of the compressed gas and the liquefied gas and the stock solution are injected into the pressure resistant container, An aerosol injector in which a stock solution is sprayed from a spray port of a spray button through a valve device by a pressure force of gas, and stores a stretchable balloon in which the stock solution is injected into the pressure-resistant container. The pressure vessel outside the balloon is filled with at least one of compressed gas and liquefied gas, and the suction port inside the pressure vessel of the valve device is provided inside the balloon. Open to, those made by acting on the stock via a balloon pressure of the gas. In the present invention, the attachment portion of the balloon opening may be provided at any one of the mouth of the pressure resistant container, the outer peripheral portion of the valve device in the pressure resistant container, and the bottom of the pressure resistant container. Further, in the present invention, it is possible to form the balloon in a size that allows the balloon to bulge along the inner wall of the pressure-resistant container in a pressurized state of the balloon in which at least one of compressed gas and liquefied gas or the undiluted solution is filled inside the balloon. it can. Furthermore, it is possible to provide a structure in which a sharp member that contacts the balloon and destroys the balloon when the balloon is maximally expanded is provided inside the pressure resistant container. The balloon may be made of natural rubber, synthetic rubber, plastic, elastomer, or a composite material thereof.

Next, in the above structure, a dip tube can be connected to the valve device via a check valve device, and the dip tube can be extended to the bottom side of the pressure resistant container.
In addition, the check valve device is provided with a connection pipe that connects the valve device and the dip tube, a check valve provided in the connection pipe, and a storage space provided outside the connection pipe to the connection pipe. And a second orifice hole formed in the peripheral wall of the peripheral wall member, and each of the orifice holes has a high pressure inside the connection pipe or in the accommodating space. It is also possible to provide an elastic sealing member that releases the orifice hole. Further, it is preferable that the thickness of the balloon upper side located above the pressure resistant container is made thicker than the thickness of the balloon lower side.

Next, in the manufacturing method of the present invention, a pressure-resistant container having a mouth, a mountain cup attached to the mouth of the pressure-resistant container with the mouth closed, and a mountain cup penetrating the mountain cup are provided. A valve device and an injection button that has an injection port and is installed on the upper side of the valve device outside the mountain cup to open and close the valve device. At least one of compressed gas and liquefied gas is provided in the pressure vessel. And the undiluted solution are injected, and the undiluted solution is configured to be freely ejected from the ejection port of the ejection button through the valve device by the pressure of the gas, and a balloon for applying pressure to the undiluted solution is provided inside the pressure resistant container. A method of manufacturing an aerosol injector, which comprises injecting a stock solution into a pressure resistant container,
The process of attaching the mountain cup to the mouth of the pressure vessel,
A step of filling at least one of a compressed gas and a liquefied gas in the pressure vessel is provided, and in the step of attaching the mountain cup to the mouth of the pressure vessel, the mountain cup is formed by aligning the balloon opening with the edge of the mountain cup. Insert the balloon into the pressure resistant container with the mouth of the pressure vessel sandwiched between the mouths of the pressure resistant container, and then depressurize the inside of the pressure resistant container to bulge the balloon inside the pressure resistant container. The object is achieved by joining the edge portion of and the peripheral portion of the mouth portion of the pressure resistant container. Also,
In the step of attaching the mountain cup to the pressure-resistant container opening by the above-mentioned manufacturing method, instead of attaching the balloon to the pressure-resistant container opening, the balloon opening is attached to the outside of the valve device inside the pressure-resistant container, and the valve device and the balloon are attached to the pressure-resistant container. Insert the mountain cup into the inside of the pressure-resistant container and set it in the mouth of the pressure-resistant container, then depressurize the inside of the pressure-resistant container to make the balloon bulge inside the pressure-resistant container, and then the edge of the mountain cup and the pressure-resistant container. The object can also be achieved by joining the peripheral portion of the mouth.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 shows a first example of an aerosol injector according to the present invention. An aerosol injector 20 of this example is shown.
Is a vertically long pressure-resistant container 21 made of a metal can such as an aluminum can or a tin can, a lid-shaped mountain cup 23 integrated with a mouth 22 of the pressure-resistant container 21, and the mountain cup 23 and the pressure-resistant container 21. A balloon 24 inserted between the mouth 22 and the upper opening of the pressure vessel 21 and a valve device 25 vertically penetrating the mountain cup 23, and an upper portion of the valve device 25. Mainly includes the mounted injection button 26, a check valve device 27 attached to the lower part of the valve device 25 and located inside the balloon 24, and a dip tube 28 connected to the lower part of the check valve device 27. This dip tube 28 penetrates the lower portion of the balloon 24 and reaches the center of the bottom of the pressure resistant container 21. The balloon 24 is filled with the compressed gas 30, and the pressure-resistant container 21 below the balloon 24 is filled with the undiluted solution 31.

FIG. 2 shows the sectional structure of the valve device 25 and the injection button 26. The structures of these parts are basically the same as those of the conventional aerosol device. The valve device 25 includes a cylindrical stem 35 that penetrates the convex portion 23 a formed in the central portion of the mountain cup 23 through a seal member 32, and a stem 35 that is loosely inserted under the stem 35. It is mainly composed of a cylindrical housing 37 with a spring 36 interposed therebetween and a connection pipe 38 mounted on the lower side of the housing 37. A flow channel 39 is formed between the lower portion of the stem 35 and the upper portion of the housing 37, a flow channel 40 is formed between the lower end portion of the stem 35 and the central portion of the housing 37, and a sealing member is formed. An orifice hole 41 is formed in the contact portion of the stem 35 with respect to 32, and the orifice hole 41 communicates with the flow passages 39 and 40 by pushing down the stem 35 against the elastic force of the spring 36, so that the valve device. 25 are to be released. Injection button 26
Is provided with a button body 45, and an inverted L-shaped passage hole 46 that penetrates the button body 45 from the central bottom portion to the upper side surface side is formed inside the button body 45.
The button body 45 is attached to the stem 35 by inserting the upper portion of the stem 35 into the lower side of the passage hole 46, and the nozzle member 48 having the injection port 47 at the opening portion of the passage hole 46 on the side surface side of the button body 45. Is installed, and this injection port 47
The undiluted solution 31 is sprayed.

Next, a curved skirt portion 50 is formed on the peripheral portion of the mountain cup 23, a seal member 51 is fitted on the back side of the skirt portion 50, and the skirt portion 50 is attached to the pressure resistant container 21. Mouth 22
The mountain cup 23 is integrated with the mouth 22 of the pressure-resistant container 21 by fitting it into the peripheral portion of the pressure cup 21 via the seal member 51 and deforming the two. Here, in the structure of this example, the mountain cup 23 The balloon 24 is attached in a state of being sandwiched between the skirt portion 50 and the seal member 51 and the mouth portion 22 of the pressure resistant container 21. The balloon 24 is shaped so as to have openings in the upper and lower portions, and the upper opening is sandwiched between the mountain cup 23 and the seal member 50 and the mouth 22 of the pressure-resistant container 21, and the lower opening is formed. The part is dip tube 28
The lower part of the balloon 24 is attached by an annular fastener 53, and the other part of the balloon 24 is bulged along the inner peripheral wall of the upper part of the pressure vessel 21. Further, a needle-shaped sharp member 54 is attached to the tip end side of the dip tube 28. The sharpening member 54 ruptures the balloon 24 when the undiluted solution 31 is reduced and the balloon 24 bulges almost completely inside the pressure vessel 21 as described later.

The balloon 24 is made of acrylonitrile butadiene rubber (NBR), styrene butadiene rubber (SBR), butadiene rubber (BR), isobutylene isoprene rubber (IIR), chloroprene rubber (CR), isoprene rubber (IR), silicone rubber. , Fluorine rubber, chlorosulfonated polyethylene, urethane rubber, acrylic rubber, ethylene propylene copolymer (EPM, EPDM), or other synthetic rubber or natural rubber, which is thin and stretchable. The balloon 24 may be made of a thermoplastic elastomer (TPE), for example, styrene-based, olefin-based, vinyl chloride-based, urethane-based, ester-based, amide-based, or other TPE. Also, balloon 2
Various shapes such as a spherical shape, a cylindrical shape, and an accordion shape are applied to the shape of 4. Also, depending on how to take the shape,
In addition to rubber type and elastomer type, cellulose type resin, ethylene tetrafluoride ethylene copolymer, ethylene vinyl acetate copolymer, polyamide nylon resin, polycarbonate, polyethylene, polystyrene, polyurethane, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, vinylidene fluoride A suitable material may be selected from acrylonitrile styrene resin, styrene butadiene copolymer, silicone resin and the like. The balloon 24
In consideration of the shape and expansion rate, chemical stability to the stock solution, physical durability, etc., the rubber 24 and the plastic material are partially fused by a method such as fusion, melting, and laminating to form the balloon 24. Of course, it may be formed.

Next, inside the balloon 24, on the lower side of the valve device 25, a connecting pipe 55 continuous with the connecting pipe 38 and a tubular shape having a diameter larger than that of the connecting pipe 55 surrounding the connecting pipe 55. A check valve device 27 including a peripheral wall member 56, a ceiling wall 57 of the peripheral wall member 56 and a bottom wall 58 of the peripheral wall member 56, and a check valve 59 provided at a central portion of the bottom wall 58 is attached. A dip tube 28 is connected to the lower portion of the check valve device 27. A storage space 60 is formed between the connection pipe 55 and the peripheral wall member 56 of the check valve device 27, and a pair of first orifice holes 62 facing each other are formed on the bottom peripheral wall of the connection pipe 55. A pair of second orifice holes 63 facing each other are formed on the upper side of the member 56, and an annular seal member such as an O-ring that closes the first orifice holes 62, 62 is formed on the outer peripheral portion of the connection pipe 55. 65 is attached to the outer peripheral portion of the peripheral wall member 56.
An annular seal member 66 such as an O-ring that closes the orifice holes 63, 63 is attached. The sealing member 65,
Each of 66 is formed of an elastic member such as rubber, and when the internal pressure of the connection pipe 55 rises above a predetermined pressure, the sealing member 65 elastically deforms and expands, releasing the first orifice hole 62 and releasing the internal pressure of the storage space 60. When the pressure exceeds a predetermined pressure, the seal member 66 is elastically deformed to expand and release the second orifice hole 63. Further, the check valve 59 is configured by installing a ball valve on a valve seat formed in the central portion of the bottom wall 58, and blocks the flow of fluid from the connecting pipe 55 to the dip tube 28 side, and vice versa. It allows a directional flow.

Next, as the compressed gas 30 filled in the balloon 24, nitrogen gas, carbon dioxide gas, oxygen gas, laughing gas, air, helium gas, neon gas, argon gas, etc. are appropriately selected and used alone or in combination. Can be appropriately mixed and used. In addition, liquefied gas may be poured into the storage space 60 in the check valve device 27 as needed. This liquefied gas is used for ozone depletion (ODP: Ozone Depletio).
n Potential) is expected to be zero HFC-134a, HF
It is preferable to use C-143a and HFC-152a. In addition to the liquefied gas, LPG, DME, or a mixed gas thereof can be used depending on the purpose. Further, as the stock solution 31, the same stock solution as the conventional stock solution for various compressed gas aerosol containers can be used.

In the aerosol container 20 of this example,
The compressed gas 30 in the balloon 24 uniformly applies pressure to the entire surface of the balloon 24 according to the Pascal's principle, so that the balloon 24 is evenly distributed as shown by an arrow P in FIG.
Pressurize 1. Therefore, if the injection button 26 is manually pushed down to release the valve device 25, the pressurized stock solution 3
1 is sucked into the dip tube 28, passes through the check valve 59, and is jetted in a desired pattern from the jet port 47 of the jet button 26. Further, when a part of the stock solution 31 is sprayed, the space occupied by the stock solution 31 correspondingly decreases, but the space occupied by the stock solution 31 is filled up immediately by the balloon 24, so that the stock solution 31 is further filled by the balloon 24. Even pressure can be applied. In this way, by pressing down the injection button 26 as necessary, a good injection state can be maintained.
Further, since the compressed gas that generates the pressure for injection is inside the balloon 24 and is partitioned from the stock solution 31 by the balloon 24, there is no possibility of being dissolved and mixed in the stock solution 31, which has been a conventional problem. So-called misuse cannot occur.

Next, since the gas is not dissolved in the undiluted solution, there is no possibility of odor and deterioration of the undiluted solution due to the gas. Furthermore, in the case of aerosol products using ordinary compressed gas, a warning sentence is printed on the outer surface of the container so that the product is not vibrated as much as possible, and caution is required to prevent the compressed gas from mixing into the stock solution. However, in the aerosol injector according to the present invention, since the compressed gas and the undiluted solution are partitioned by the balloon, there is no possibility of mixing the two, and there is no need to worry about such precautions. Further, the pressure resistant container 21 should be in any posture and the stock solution 31
, I.e., upright, inverted, tilted,
In any of the overturned states, the lower end of the dip tube 28 in this example is always located at the center of the bottom surface of the pressure vessel 21, and the stock solution 31 is also around the lower end of the dip tube 28. Even in such a posture, the stock solution 31 can be reliably sucked into the dip tube 28, and the stock solution 31 can be reliably sprayed.

Next, as described above, it is possible to ensure a state of injection of the undiluted solution without misuse. In the case of the compressed gas 30, the balloon 24 is inflated as the temperature changes or as the undiluted solution is injected. The pressure to be discharged gradually decreases, but misuse due to this pressure decrease is prevented by filling the balloon 24 with a high-pressure compressed gas within the range prescribed by law in anticipation of this decrease. it can. In addition, if a liquefied gas of a type that does not cause a problem of ozone layer destruction or the like is further injected into the storage unit 60 as necessary, the liquefied gas vaporizes as the pressure of the compressed gas 30 in the balloon 24 decreases. The pressure drop exerted by the balloon 24 on the stock solution 31 can always be made constant because the pressure drop is compensated for by flowing out from the second orifice hole 63 into the balloon 24. Here, the storage unit 60
In order to ensure that the liquefied gas injected into the inside of the balloon 24 can be opened from the second orifice hole 63 by opening the sealing member 65, the sealing member 65 can be closed.
It can be easily dealt with if it is prepared to open at an internal pressure of about 1 kg / cm ² or more. When the undiluted solution 31 decreases and the balloon 24 bulges almost to the inside of the pressure-resistant container 21, the balloon 24 starts to contact the sharp member 54, and the balloon 24 further expands to the inside of the pressure-resistant container 21. Since the sharp member 54 breaks the balloon 24, the aerosol injector 20 can be completely used up at this stage. Further, when the balloon 24 is torn, the compressed gas 30 filled in the balloon 24 can be released to the outside through the dip tube 28 and the valve device 25 by pushing the injection button 26.
It is also possible to easily degas the inside of the. In the above structure, the sharp member 54 is provided at the tip of the dip tube 28, but it is needless to say that the sharp member 54 may be provided at the bottom of the pressure vessel 21.

The aerosol injector 20 having the above structure is widely used for various purposes for spraying lotion, tonic, cologne, hair spray, hair colon, mousse, shaving cream, antiperspirant, repellent, insecticide and the like. It goes without saying that it can be used, and of course, it can be used for spraying products having relatively high viscosity, such as emulsion, gel, foam gel, hair dye, and the like.

FIG. 3 shows a main part of a second example of the aerosol injector according to the present invention. In the aerosol injector of this example, the check valve device 70 is the check valve of the previous example. Device 27
The configuration is slightly different from. The check valve device 70 of this example has a connecting pipe 55, a peripheral wall member 56, a ceiling wall 57, a bottom wall 58 and a check valve 59, and is provided with orifice holes 62, 63 and seal members 65, 66. Check valve device 2
7, but in this example the valve device 25
It is characterized in that a peripheral step portion 38B for attaching a balloon is formed in the middle of a connection pipe 38A that connects the check valve device 70 with the check valve device 70. The distal end of the balloon 24A having a tapered shape is attached to the circumferential step portion 38B, and the attached portion is fixed by an annular ring or the like so that the balloon 24A can be attached to the check valve device portion. Also in the configuration of FIG. 3, it is possible to obtain the same effect as that of the previous example.

FIG. 4 shows a main part of a third example of the aerosol injector according to the present invention. In the aerosol injector of this example, the check valve device 71 is the check valve of the previous example. Device 70
The configuration is slightly different from. The check valve device 71 of this example has only the connecting pipe 55 and the check valve 59 inside thereof, and has a configuration in which the peripheral wall member 56, the ceiling wall 57, and the bottom wall 58 are omitted. Also, the point that the first orifice hole 62 and the seal member 66 are provided is the same as the check valve device 70 of the previous example, but the second orifice hole 63 and the seal member 65 are omitted, and the valve device 25 and the check valve are omitted. It is characterized in that a peripheral step portion 38D for attaching a balloon is formed in the middle of a connecting pipe 38C connecting to the device 71. The distal end of the tapered balloon 24A is attached to the circumferential step portion 38D, and the attached portion is fixed by an annular ring or the like so that the balloon 24A can be attached to the check valve device portion. Also in the configuration of FIG. 4, the same effect as that of the previous example can be obtained.

Next, an example of a method of manufacturing an aerosol injector will be described. FIGS. 5A to 5D show an example of a method for manufacturing an aerosol injector having the check valve device 71 shown in FIG. 4. When manufacturing the aerosol injector, a pressure-resistant container is used in the previous step. The compressed gas 30 and the stock solution 31 are not stored in the inside of the valve 21, and the valve device 25, the mountain cup 50, and the check valve device 71.
The one in which is set and integrated is not fixed to the pressure resistant container 21. Here, the pressure vessel 21 is shown in FIG.
If prepared as shown in (A), a predetermined amount of the stock solution 31 is injected into the inside of the mountain cup 2 and then the mountain cup 2
FIG. 5 (A) shows a combination of the valve 3, the valve device 25, the check valve device 71, the dip tube 28, and the balloon 24A.
As shown in FIG. 5, the skirt portion 50 of the mountain cup 23 is lightly aligned with the mouth portion 22 of the pressure vessel 21 from above.

After that, a vacuum crimping step is performed. The apparatus used for the vacuum crimping process is shown in FIG. In this decompression crimp process, as shown in FIG. 17, a set of the mountain cup 23, the valve device 38 and the dip tube is inserted into the pressure resistant container 21, and the mountain cup 23 is inserted into the mouth portion 23 of the pressure resistant container 21. Hollow cup 1 that can be covered and then cover the upper part of the pressure vessel 21
Using the crimping device 16 equipped with
5, the seal member 17 provided in the lower opening of the pressure vessel 2
The hollow cup 15 is attached to the pressure-resistant container 21 by pressing it against the shoulder portion of the hollow cup 1, and after degassing as shown by the arrow S ', the hollow cup 1
The crimp claws 18 that are vertically movable inside 5 are lowered to caulk and fix the mountain cup 23 and the mouth portion 23 of the pressure resistant container 21 to integrate them. Also,
In this decompression crimp process, the inside of the pressure resistant container 21 is normally deaerated to about 1/2 atmospheric pressure and then the skirt is machined. By degassing as shown by arrow S in (B), it is possible to inflate the balloon 24A by utilizing the atmospheric pressure inside the balloon 24A and to expand the balloon 24A along the inner upper portion of the pressure resistant container 21. . From this state
As shown in (C), the skirt portion 50 and the mouth portion 22 are pressure-deformed by the crimp claws 18 so that they are hermetically integrated. Next, when a compressed gas is fed into the connecting pipe 55 through the valve device 25 as shown by an arrow P in FIG. 5D, the seal member 66 is deformed when the gas pressure exceeds a certain value. Since it spreads and the first orifice hole 62 is released,
Compressed gas can be injected into the balloon 24A. If the pressure of the compressed gas inside the balloon 24A reaches a constant value, the injection work is stopped, as shown in FIG.
As shown in (D), it is possible to obtain the aerosol injector 73 having a structure in which the pressure indicated by the pressure P ′ is uniformly applied from the inside of the balloon to the stock solution 31 via the balloon 24A.

When the aerosol injector is manufactured as described above, the balloon 24A is skillfully utilized in the decompression crimp process which has been performed in the conventional aerosol injector manufacturing process.
Can be easily expanded and positioned. The gas pressure of the compressed gas injected into the balloon 24A is preferably set as high as possible within the range stipulated by law in the pressure container of this type of aerosol injector. This is because as the stock solution 31 is used, the balloon 24A gradually expands due to the gas pressure inside the balloon 24A, and the pressure applied to the stock solution 31 is relatively reduced. For example, even if most of the stock solution 31 is used,
A necessary pressure can be uniformly applied to the undiluted solution 31 by the balloon 24A, whereby a desired injection form can be obtained. Here, for example, according to the regulations required for aerosol injectors, the maximum value is 8 kg / cm at 35 ° C.
^Since it is ² , it is preferable to set it to about 7.2 kg / cm ^{2 at} room temperature.

FIGS. 6A to 6D show an example of a method of manufacturing an aerosol injector equipped with the check valve device 70 shown in FIG. 3. When manufacturing this aerosol injector, first, The pressure-resistant container 21, the valve device 25, the mountain cup 50, and the check valve device 70 are not integrated, and the compressed gas 30 and the stock solution 31 are not stored in the pressure-resistant container 21. The pressure resistant container 21 is shown in FIG.
If it is prepared as shown in FIG. 3, a predetermined amount of the stock solution 31 is injected into the inside of the mountain cup 23, the valve device 25, the check valve device 70, and the dip tube 28.
The integrated balloon and balloon 24A is inserted as shown in FIG. 6A, and the skirt portion 50 of the mountain cup 23 is inserted.
Is lightly aligned with the mouth 22 of the pressure vessel 21 from above.

After that, the above-described pressure reduction crimping step is performed. In this decompression crimp process, the inside of the pressure vessel 21 is usually
This is a process of degassing to about / 2 atm and then machining the skirt part. When the configuration of this example is adopted, a decompression crimp process is performed to remove the skirt part as shown by arrow S'in FIG. 6 (B). It is possible to inflate the balloon 24A by utilizing the fact that the inside of the balloon 24A is at atmospheric pressure, and to expand the balloon 24A in a shape along the inner upper portion of the pressure resistant container 21. From this state, as shown in FIG. 6C, the skirt portion 50 and the mouth portion 22 are deformed under pressure to airtightly integrate them.

Next, when a compressed gas is fed into the connecting pipe 55 through the valve device 25 as shown by an arrow P in FIG. 6 (D), when the gas pressure exceeds a certain value, the sealing member 6
Since the first and second orifice holes 62 and 63 are released, the balloons 24A and 6B are deformed and expanded.
A compressed gas can be injected into the interior of the. If the pressure of the compressed gas inside the balloon 24A reaches a constant value, the injection work is stopped, and then the liquefied gas 75 is placed in the storage space 60 in the check valve device 70 via the valve device 25. Quantification, for example, as shown in FIG. Even when the liquefied gas 75 is injected, when the injection pressure exceeds a certain value, the seal member 66 deforms and expands, and the first orifice hole 62 is released, so that the liquefied gas is injected into the storage space 60. can do. From the above, FIG.
As shown in (D), it is possible to obtain the aerosol injector 76 configured such that the pressure indicated by the pressure P ′ is uniformly applied to the stock solution 31 from the inside of the balloon via the balloon 24A.

When the aerosol injector is manufactured as described above, the balloon 24A is skillfully utilized in the decompression crimping process which has been performed in the conventional aerosol injector manufacturing process.
Can be easily expanded and positioned. The gas pressure of the compressed gas and the liquefied gas injected into the balloon 24A is preferably set as high as possible within the range stipulated by law in the pressure container of this type of aerosol injector. Also, in the configuration of this example,
When the undiluted solution 31 is used, the balloon 24A gradually expands due to the gas pressure inside the balloon 24A, and the gas pressure of the compressed gas inside the balloon 24A lowers. Since the gas 75 is vaporized, the pressure in the balloon 24A does not relatively decrease, and the pressure applied to the stock solution 31 does not decrease. Therefore, with the configuration of the aerosol injector 76 of this example, a constant gas pressure can be reliably applied to the stock solution 31 from the beginning of use until the stock solution 31 decreases and disappears.

Next, various forms of the balloon used in the present invention will be described. The balloon accommodated in the pressure resistant container according to the present invention may have various forms.
As shown in FIG. 3, the whole is made of synthetic rubber and has an opening 81 at the upper end and an opening 82 at the lower end, and an upper portion 83
It may be a bag-shaped balloon 80 having a small inner diameter and a large inner diameter of the lower portion 84. Also, the balloon 80
The balloon attachment portion, that is, the mouth portion 22 of the pressure resistant container 21 of the first example shown in FIG.
It is possible to use the check valve devices 70 and 71 of the above-described second example shown in (1) and (2) described above, each of which is provided with a port 85 that can be attached. In addition, in the balloon 80, it is preferable that the upper portion 83 has a thick wall, the lower portion 84 has a thin wall, and the central portion 86 has a wall thickness intermediate between the upper portion and the lower portion. FIG. 8 shows a state where the balloon 80 having the above configuration is provided in the pressure resistant container 21.
As shown in (A), in the balloon 80 of this example, when the compressed gas is filled, expansion is surely started from the lower side of the balloon 80, and the expansion then spreads to the central part 86 and the upper part 83. Moreover, the air in the pressure resistant container 21 can be moved to the upper side, and thus the air in the pressure resistant container can be prevented from being mixed with the stock solution.

Next, FIG. 7 (B) shows another example of the balloon. In this example, the balloon 90 is made of a material such as plastic, and openings 91 and 92 are formed at the upper end and the lower end. It is characterized in that the tubular portion 93 is formed in the upper portion and the bellows portion 94 with a downward constriction is formed in the other portions. FIG. 8B shows a state in which the balloon 90 of this example is provided inside the pressure-resistant container 21. When the balloon 90 is filled with compressed gas, the balloon 90 having a downward constriction swells and thus the pressure-resistant container is expanded. The air in 21 is surely moved to the upper side. Next, FIG.
(C) shows still another example of the balloon. The balloon 100 of this example is formed according to the liquefied gas, and is formed at the opening 101 formed at the upper end and the lower end. It has an opening 102, an upper portion 103 and a lower portion 104 are formed thin, and a central portion 105 is formed slightly thicker than them. FIG. 8C shows a state in which the balloon 100 of this example is provided in the pressure-resistant container 21. When the balloon 100 is filled with the compressed gas, the balloon 100 in the downward constriction shape bulges out, so that the pressure-resistant container is formed. The air in 21 is surely moved to the upper side.

FIG. 9 (A) shows an example in which a mechanism for filling a balloon with a compressed gas and a mechanism for injecting a stock solution are separately formed. Aerosol injector 1 of this example
In 05, the stock solution 31 is stored on the inner bottom side of the pressure resistant container 21, and the balloon 106 is attached to the bottom side of the valve device 25 penetrating the mountain cup 23.
The dip tube 108 is attached to the side wall of the valve 5 via the check valve device 107. FIG. 9 (B)
An example of a balloon mounting structure is shown, and the upper opening 11 of the balloon 110 of the aerosol injector 109 of this example is shown.
1C is arranged below the peripheral edge of the mountain cup 23, and FIG. 9C shows a gas filling valve 115 provided at the bottom of the pressure resistant container 114 of the aerosol injector 113, and a bag-shaped balloon 116 of this type. The lower opening 117 is attached, and the stock solution 31 is filled in the pressure resistant container on the upper side of the balloon 116.
The inside of the balloon 116 is filled with the compressed gas 30, and the dip tube is omitted in FIG. 9D, and the upper opening 119 of the balloon 118 is directly provided below the valve device 25 penetrating the mountain cup 23. A compressed gas 30 inside the pressure vessel below the balloon 118.
Is a structure of the aerosol injector 120 filled with the gas. In this example, a gas filling valve 122 is provided at the bottom of the pressure resistant container 121. As in the example described above, there are various forms of the balloon, and the inside of the balloon can be filled with one of compressed gas and undiluted solution,
Either the stock solution or the compressed gas can be filled in a pressure resistant container outside the balloon.

Next, FIG. 10 shows another example of the mounting mode of the balloon. For example, a balloon having a check valve 126 at the bottom of a bellows-shaped balloon body 125 shown in FIG. 10 (A). The balloon 127 is filled with the compressed gas 30 in advance at a pressure equal to or slightly higher than that of the final product, and the compressed gas 30 is inserted into the pressure-resistant container 21 and then the balloon 127 shown in FIG.
9 (C), the mountain cup 23 and the valve device 25 are attached, and the stock solution 31 is filled through the valve device 25 as shown in FIG. 9 (C).
Aerosol injector 12 having a structure similar to that shown in FIG.
9 can be obtained.

[0036]

As described above, according to the present invention, an expandable balloon filled with at least one of compressed gas and liquefied gas or undiluted solution is provided inside the pressure vessel, and the balloon is mediated by the pressure force from the gas. Since the undiluted solution can be discharged to the outside of the pressure resistant container through the valve device while the pressure is uniformly applied to the undiluted solution, the undiluted solution can always be uniformly pressurized with gas through the balloon, and the undiluted solution and the gas can be discharged by the balloon. Since it is possible to surely partition, the gas is not apologized to be released when the undiluted solution is injected, and the gas is not dissolved in the undiluted solution, so that the so-called misuse-free injection state can be reliably obtained. . Next, since the gas is not dissolved in the undiluted solution, there is no possibility of odor and deterioration of the undiluted solution due to the gas.
Furthermore, in the case of aerosol products that use ordinary compressed gas, a warning sentence is printed on the outer surface of the container so that the product is not shaken as much as possible, and caution is required to prevent the compressed gas from dissolving in the stock solution. However, in the aerosol injector according to the present invention, since the compressed gas and the undiluted solution are partitioned by the balloon, there is no possibility of mixing the two, and there is no need to worry about such precautions.

In the case of a structure in which the inside of the balloon is filled with gas and the pressure resistant container outside the balloon is filled with the stock solution, the balloon gradually expands as the stock solution decreases, and the stock solution is filled into the balloon. In the case of a structure in which an external pressure-resistant container is filled with gas, the balloon gradually shrinks as the stock solution decreases, so in any case, even if the stock solution decreases, gas pressure is reliably applied to the stock solution via the balloon. Even if the pressure vessel is tilted in any direction, the balloon surely contacts the stock solution and applies pressure to the stock solution. Even when it is used in any direction, it is possible to obtain a jetting state without misuse, in which jetting unevenness does not occur. Further, in the structure in which the pressure is applied to the stock solution inside the pressure resistant container by the expandable balloon as described above, 95% of the stock solution is obtained in the conventional aerosol injector using the compressed gas.
%, It is possible to use up to about 98%, and beyond that, what could not be sucked up by the dip tube can be used up to about 98%.

Next, the balloon may be attached either at the mouth of the pressure resistant container, at the outer peripheral portion of the valve device, or at the bottom of the pressure resistant container. However, it is possible to adopt a mechanism capable of reliably applying the gas pressure to the stock solution via the balloon, and it is possible to obtain a jetting state without misuse. Further, when the undiluted solution is reduced and the balloon expands to fill the inside of the pressure-resistant container, the sharp member breaks the balloon, so that the aerosol injector can be completely used at this stage. In addition, if the balloon is torn, the gas filled inside the balloon or inside the pressure resistant container can be released to the outside through the dip tube and valve device by pushing the injection button, so the gas inside the pressure resistant container is released. Can also be done easily.

Next, by making the thickness of the balloon upper side thicker than the thickness of the balloon lower side, the balloon can be swollen in order from the lower side when the balloon is swollen. Since the air on the upper side can be reliably moved to the upper side of the pressure vessel, it is possible to prevent the air remaining in the pressure vessel from coming into contact with the stock solution as much as possible, and mix the air into the stock solution when filling the stock solution. The risk can be reduced.

In the manufacturing method of the present invention, when the mountain cup is attached to the mouth of the pressure-resistant container, the opening of the balloon is also sandwiched at the same time to depressurize the inside of the pressure-resistant container to bulge the balloon inside the pressure-resistant container, and then the mountain By performing the crimping step of joining the cup to the mouth of the pressure resistant container, the balloon in the expanded state can be easily provided inside the pressure resistant container. Also, by attaching the opening of this balloon to the lower side of the valve device that penetrates the mountain cup, when attaching the mountain cup to the mouth of the pressure resistant container, the balloon is also inserted into the pressure resistant container at the same time to reduce the pressure inside the pressure resistant container. As a result, the balloon inflated inside the pressure resistant container, and then the crimping step of joining the mountain cup to the mouth of the pressure resistant container is performed, whereby the balloon in the expanded state can be easily provided inside the pressure resistant container. Therefore, according to the manufacturing method of the present invention, the decompression crimp process conventionally performed when mounting the mountain cup in the pressure resistant container is cleverly used, and the balloon is mounted inside the pressure resistant container without adding a new process. There is an effect that can be easily.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first example of an aerosol injector according to the present invention.

FIG. 2 is an enlarged cross-sectional view of a portion around an injection button of the aerosol injector shown in FIG.

FIG. 3 is an enlarged cross-sectional view of a second example of the check valve device for an aerosol injector according to the present invention.

FIG. 4 is an enlarged sectional view of a third example of the check valve device for an aerosol injector according to the present invention.

FIG. 5 (A) is a sectional view showing a state in which a balloon and a valve device are housed inside a pressure resistant container and a mountain cup is put on the pressure resistant container opening, and FIG. 5 (B) is from the pressure resistant container opening. A cross-sectional view showing a state of being degassed, FIG. 5 (C) is a cross-sectional view showing a state in which a compressed gas is filled in a balloon in a pressure vessel equipped with a mountain cup, and FIG. It is sectional drawing which shows the state which is applying.

FIG. 6 (A) is a sectional view showing a state in which a balloon and a valve device are housed inside a pressure resistant container and a mountain cup is put on the pressure resistant container opening, and FIG. 6 (B) is from the pressure resistant container opening. FIG. 6C is a cross-sectional view showing a state of being degassed, FIG. 6C is a cross-sectional view showing a state in which a balloon in a pressure resistant container equipped with a mountain cup is filled with compressed gas, and FIG. It is sectional drawing which shows the state which is applying the pressure to the undiluted | stock solution via the balloon with the liquefied gas and the compressed gas.

7A is a sectional view showing a second example of the balloon, FIG. 7B is a sectional view showing a third example of the balloon, and FIG. 7C is a fourth example of the balloon. FIG.

8 (A) is a cross-sectional view showing a state in which the balloon shown in FIG. 7 (A) is housed in a pressure resistant container, and FIG. 8 (B) is shown in FIG.
FIG. 8B is a sectional view showing a state in which the balloon shown in FIG. 7B is housed in a pressure resistant container, and FIG. 8C is a sectional view showing a state in which the balloon shown in FIG. 7C is housed in a pressure resistant container.

FIG. 9 shows another example of an aerosol injector, FIG. 9 (A) is a sectional view of an example in which a balloon and a dip tube are separately provided, and FIG. 9 (B) is an upper opening portion of the balloon. 9 is a cross-sectional view of the pressure vessel attached to the mouth of the pressure vessel, FIG.
FIG. 9C is a sectional view when the balloon is attached to the bottom of the pressure resistant container, and FIG. 9D is a sectional view when the inside of the balloon is filled with the stock solution.

FIG. 10 shows another example of the structure of the balloon. FIG. 10 (A) is a cross-sectional view showing a balloon provided with a check valve and a pressure resistant container, and FIG. 10 (B) shows the balloon in the pressure resistant container. FIG. 10C is a sectional view showing a state in which the mountain cup and the valve device are inserted and attached, and FIG. 10C is a sectional view showing a state where the pressure resistant container is filled with the stock solution.

FIG. 11 shows a configuration of a first example of a conventional aerosol injection device, FIG. 11 (A) is a cross-sectional view showing a state in which an undiluted solution is being ejected in an upright state, and FIG. It is sectional drawing which shows the state which is made to inject the undiluted | stock solution.

FIG. 12 is a cross-sectional view showing a state in which a first example of a conventional aerosol injector is inverted to inject a stock solution.

FIG. 13 is a sectional view showing a second example of a conventional aerosol injector.

FIG. 14 is a cross-sectional view showing a state in which the undiluted solution is being jetted in a state where the aerosol injector shown in FIG. 13 is inverted.

FIG. 15 is a cross-sectional view showing a third example of a conventional aerosol injector.

FIG. 16 is a cross-sectional view showing a state in which the stock solution is sprayed with the aerosol injector shown in FIG. 15 being tilted.

FIG. 17 is a diagram showing a crimping step performed when manufacturing an aerosol injector.

[Explanation of symbols]

20 ... Aerosol injector, 21 ... Pressure resistant container, 22 ...
Mouth, 23 ... Mountain cup, 24 ... Balloon, 2
5 ... Valve device, 26 ... Injection button, 27 ... Check valve device, 28 ... Dip tube, 30 ... Compressed gas, 3
1 ... undiluted solution, 32 ... sealing member, 38 ... connection pipe,
47 ... Injection port, 50 ... Skirt part, 51 ... Seal member, 53 ... Fastener, 56 ... Peripheral wall member, 57 ... Ceiling wall, 58 ... Bottom wall, 59 ... Check valve, 60 ... Storage space, 62 ... First orifice hole, 63 ... Second orifice hole, 65, 66 ... Seal member, 70 ... Check valve device, Three
8A, 38C ... Connection pipe, 38B, 38D ... Peripheral step portion, 24A ... Balloon, 80, 90, 100 ... Balloon, 105 ... Aerosol injector, 106 ... Balloon,
108 ... Dip tube, 109, 113, 120
..Aerosol injectors

Claims (11)

[Claims] 1. A pressure-resistant container having a mouth, a mountain cup attached to the mouth of the pressure-resistant container with the mouth closed, a valve device penetrating the mountain cup, and an injection port. Then, it is equipped with an injection button which is attached to the upper side of the valve device outside the mountain cup and opens and closes the valve device, and at least one of the compressed gas and the liquefied gas and the stock solution are injected into the pressure resistant container, and the gas is supplied. Is an aerosol injector in which the stock solution is freely jetted from a jet port of a jet button through a valve device by a pressing force of a The balloon is stored, the stock solution is injected into a pressure-resistant container outside the balloon, and the pressure of gas is applied to the stock solution via the balloon. Aerosol injector no youth. 2. A pressure resistant container having a mouth, a mountain cup attached to the mouth of the pressure resistant container with the mouth closed, a valve device penetrating the mountain cup, and an injection port. Then, it is equipped with an injection button which is attached to the upper side of the valve device outside the mountain cup and opens and closes the valve device, and at least one of the compressed gas and the liquefied gas and the stock solution are injected into the pressure resistant container, and the gas Is an aerosol injector in which a stock solution is freely jetted from a jet port of a jet button by a pressing force of a valve device, and a retractable balloon in which the stock solution is injected is housed in the pressure resistant container. An external pressure vessel is filled with at least one of compressed gas and liquefied gas, and the suction port inside the pressure vessel of the valve device is inside the balloon. Is the mouth, an aerosol injector without misuse, characterized in that the pressure of the gas is formed by the action in the stock solution through a balloon. 3. The mounting portion for the opening of the balloon is provided at any one of the mouth of the pressure resistant container, the outer peripheral portion of the valve device in the pressure resistant container, and the bottom of the pressure resistant container. The aerosol injector according to 1 or 2. 4. The balloon is formed in such a size that it can be expanded along the inner wall of the pressure-resistant container when the balloon is filled with at least one of compressed gas and liquefied gas or a stock solution. The aerosol injector according to any one of claims 1 to 3, which is characterized. 5. The aerosol injector according to claim 1, wherein the pressure-resistant container is provided with a sharp member that contacts the balloon and destroys the balloon when the balloon is maximally expanded. . 6. The balloon comprises natural rubber, synthetic rubber,
The aerosol injector according to any one of claims 1 to 5, which is made of a plastic, an elastomer, or a composite material thereof. 7. The dip tube is connected to the valve device via a check valve device, and the dip tube is extended to the bottom side of the pressure resistant container.
6. The aerosol injector according to any one of 6 above. 8. A check valve device between a connecting pipe communicating the valve device and a dip tube, a check valve provided in the connecting pipe, and a connecting pipe provided outside the connecting pipe. And a peripheral wall member forming a storage space, wherein the peripheral wall of the connecting pipe has a first orifice hole, and the peripheral wall of the peripheral wall member has a second orifice hole.
8. The aerosol injector according to claim 7, wherein each orifice hole is formed, and each orifice hole is provided with an elastic seal member that releases the orifice hole when the pressure inside the connection pipe or the storage space is high. 9. The aerosol according to claim 1, wherein the thickness of the balloon upper side located above the pressure resistant container is formed to be thicker than the thickness of the balloon lower side. Injector. 10. A pressure-resistant container having a mouth, a mountain cup attached to the mouth of the pressure-resistant container with the mouth closed, a valve device penetrating the mountain cup, and an injection port. Then, it is equipped with an injection button which is attached to the upper side of the valve device outside the mountain cup and opens and closes the valve device, and at least one of the compressed gas and the liquefied gas and the stock solution are injected into the pressure resistant container, and the gas is supplied. The undiluted solution is made to be able to be ejected from the ejection port of the ejection button through the valve device by the pressing force of, and the expandable balloon for accommodating the undiluted solution inside the pressure vessel is manufactured. The method is to inject the stock solution into the pressure-resistant container, attach a mountain cup to the mouth of the pressure-resistant container, and compress gas and liquefied gas inside the pressure-resistant container. Comprising a step of filling at least one, in the step of attaching the mountain cup to the pressure-resistant container mouth, the mouth of the balloon in the mountain cup and pressure-resistant container mouth along the opening of the balloon along the edge of the mountain cup Insert the balloon inside the pressure-resistant container in a sandwiched state, depressurize the inside of the pressure-resistant container after this to make the balloon inflated inside the pressure-resistant container, and then the edge of the mountain cup and the periphery of the mouth of the pressure-resistant container. A method for manufacturing an aerosol injector, comprising: 11. In the step of attaching the mountain cup to the mouth of the pressure resistant container according to claim 10, instead of attaching the balloon to the mouth of the pressure resistant container, an opening of the balloon is attached to the outside of the valve device inside the pressure resistant container to form a valve. Insert the device and balloon into the pressure-resistant container, install the mountain cup at the mouth of the pressure-resistant container, and then depressurize the inside of the pressure-resistant container to make the balloon bulge inside the pressure-resistant container. A method of manufacturing an aerosol injector, comprising joining an edge portion and a peripheral portion of a mouth portion of a pressure resistant container.