JPH03124586A - Pressurized dispensing container for fluid substances - Google Patents

Abstract

PURPOSE:To obtain a pressurized discharge container of fluid substance safely storable the substance or effectively useable discharge pressure by providing receiving parts, for separately receiving a plurality of substances intended to be mixed together to produce a gas, and a means for sealing the receiving parts. CONSTITUTION:When a rotary stopper 20 is moved upwardly by rotating a crosspiece 26, the upper end of an airtight stopper body 9 is released to mix together a first substance 15 in a first receiving part 13 and a second substance 16 in a second receiving part 14. By a chemical reaction between these substances 15 and 16, carbon dioxide evolves and accumulates in a space 27 surrounding the outer periphery of a receiving bag body 6 in a pressure resisting container 1 to raise its inner pressure, which is exerted on the outer wall of the receiving bag body 6 having a fluid substance 7 filled therein to fill the fluid substance 7 even in a cavity 4e of a spray mechanism 4. When a push button 4a on the top of the pressure resisting container 1 is depressed, the fluid substance 7 is discharged from a nozzle orifice 4f to the outside.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention stores fluid substances such as gases and liquids in a pressure-tight container under pressure, and releases the sealing of the pressure-tight container when necessary. This invention relates to a pressurized discharge container that discharges a fluid substance to the outside.

(Prior Art) Conventionally, various types of spray containers using fluorocarbon gas as a pressure medium have been widely used as containers of this type. However, it has become known that fluorocarbon gas destroys the ozone layer in the atmosphere, and there is a sudden movement to completely abolish fluorocarbon gas in order to protect the global environment, and there is a strong desire to develop a pressurizing means to replace fluorocarbon gas in spray containers. There is.

As an example of this pressurizing means, a structure recently adopted for cosmetic spray containers is that a balloon-like inflatable plastic container is suspended inside a pressure-resistant container, and a pipe-shaped inflatable container is placed around the plastic container. A rubber container as thick as possible is provided, liquid or cream cosmetics are filled from the outside of the pressure container under high pressure into the plastic container, and as the plastic container expands, the rubber container is expanded. The pressure container is sealed while maintaining the expansion of the container.
When necessary, for example, by pressing a nozzle stopper at the upper end of the pressure-resistant container, the cosmetic is discharged from the plastic container to the outside.

(Problem to be Solved by the Invention) However, in such conventional dispensing containers, the rubber container must be shaped like an extremely thick pipe, and therefore, when filled with fluid substances such as cosmetics, extremely high pressure is applied. This requires new expensive equipment in addition to the conventional filling equipment for fluid substances. In addition, since the rubber container is thick, the internal volume is small, and the amount of fluid substance filled is significantly reduced compared to conventional containers. Furthermore, there is a drawback that the discharge pressure decreases during repeated use.

The present invention has been made in view of the above-mentioned drawbacks, and its purpose is to form a pressurizing means without using fluorocarbon gas, and to increase the internal volume of the fluid substance as the content.

It is possible to maintain a relatively large internal pressure, and the internal pressure can be changed as appropriate depending on the contents, and the discharge pressure can be maintained at a high level until the end of discharging the contents. It is an object of the present invention to provide a pressurized discharge container for a fluid substance that can be safely stored or effectively use the discharge pressure without generating discharge pressure for the contents.

(Means for Solving the Problems) In order to achieve the above object, in the pressurized discharge container for fluid substances according to the present invention, the fluid materials are sealed and stored in a pressure-resistant container in a pressurized state, and when necessary, In a pressurized discharge container that discharges a fluid substance to the outside by releasing the seal of the pressure-resistant container, a storage section is provided inside the pressure-resistant container to isolate and store a plurality of substances that generate gas when mixed, A means for sealing the storage part is provided, a shrinkable storage bag filled with a fluid substance is provided above the storage part, and an opening of the storage bag is connected to a discharge path of the fluid substance,
In addition, means for mixing a plurality of substances in the storage section from outside the pressure-resistant container is provided, and the outer wall of the storage bag body is pressurized by the pressure of the gas generated by mixing the plurality of substances.

(Function) By mixing multiple substances in the storage section and generating gas, this gas increases the internal pressure of the space inside the pressure container surrounding the storage bag filled with a fluid substance, and the storage bag is heated. Apply pressure directly or indirectly to the outer wall. In this state, when the pressure container is unsealed during use, the fluid substance inside is discharged to the outside due to the internal pressure.

(Embodiments) Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 show a pressurized discharge container for a fluid substance according to a first embodiment of the present invention, in which 1 shows a pressure-resistant container made of synthetic resin, and 2 shows its outer shell.

This outer shell 2 is a cylindrical body with an open bottom, and its upper surface is sealed with a lid member 3. A push button 4a, a shaft portion 4b, and a nozzle 4c are provided at the center of the lid member 3.

A known spray mechanism 4 consisting of a spring 4d, a cavity 4e, and a nozzle hole 4f is provided.

Further, the opening of the storage bag 6 is communicated with the pressure container side opening of the spray mechanism 4 via the connecting portion 5, and the storage bag 6 is housed in the pressure container 1 in a hanging manner. The storage bag body 6 is made of a material with excellent shrinkability such as thin plastic or rubber, and its inside is filled with a fluid substance 7 such as lotion.

Further, a female thread 8 is formed on the inner peripheral surface of the lower open end of the outer shell 2, and an airtight plug 9 is attached thereto. The airtight plug 9 is made of synthetic resin, and has a male screw 10 formed on its lower outer periphery that can be screwed into the female screw 8 of the outer shell 2. By screwing both screws 8 and 10, the airtight plug can be closed. 9 as outer shell 2
The opening bottom of the outer shell 2 is closed. Further, an O-ring 11 is provided on the upper outer periphery of the airtight plug body 9, and by bringing this O-ring 11 into close contact with the inner wall surface of the pressure-resistant container 1, the space above the O-ring 11 inside the pressure-resistant container 1 is opened to the outside. However, it is kept airtight.

Further, the inside of the upper surface of the airtight plug body 9 is divided into two parts, a first storage part 13 and a second storage part 14, by a partition wall 12 passing through the center of the airtight plug body 9. Two substances that generate gas when mixed are separately stored in the first storage part 13 and the second storage part 14. In this embodiment, the first storage part 13 contains two substances that generate a gas. Sodium hydrogen carbonate is contained as the substance 15 in the first part, and the second storage part 14 contains sodium hydrogen carbonate as the substance 15.
A citric acid solution is stored as the second substance 16, and when these are mixed, carbon dioxide gas is generated.

On the other hand, a recess 17 having a circular planar shape is formed in the center of the outer bottom surface of the airtight plug body 9 .

Further, the central portion of the partition wall 12 of the airtight plug body 9 is thick, and a through hole 18 is bored through the central portion in the vertical direction. A female thread 19 is provided at the lower inner circumference of the through hole 18.
is formed. The shaft portion 21 of the rotary plug 20 is inserted through the through hole 18 from above the airtight plug body 9 . The length of the shaft portion 21 of the rotary plug 20 is longer than the length of the through hole 18 in the vertical direction, and a male thread 22 is formed in the lower part of the shaft portion 21, and is screwed into the female thread 19 of the airtight plug body 9. It is now possible to do so. Moreover, the shaft portion 21 of this rotary stopper 20
An O-ring 23 is attached to the upper portion and is in airtight contact with the upper inner wall of the through hole 19. moreover,
A circular top plate 24 is integrally formed at the upper end of the shaft portion 21 of the rotary stopper 20. A packing material 25 is attached to the lower surface of this top plate 24, and the top plate 25 airtightly closes the upper surface openings of the first storage section 13 and the second storage section 14 of the airtight plug body 9 via the packing material 25. It is supposed to be done. Further, a crossbar 26 is integrally attached to the lower end of the shaft portion 21 of the rotary stopper 20. This crosspiece 26 is an airtight plug body 9
The rotary stopper 20 is housed in a recess 17 on the outer bottom surface of the rotary plug 20, and by rotating the crosspiece 26, the rotary stopper 20 is raised by a female screw 19 and a male screw 22.

That is, in this embodiment, the means for sealing each storage section with the packing material 25 of the rotary stopper 20 is located below the storage bag body 6, and the sealing is released when the rotary stopper 20 rises. , a means for mixing a plurality of substances is configured.

Next, to explain the use of the above-mentioned embodiment, after manufacturing the pressurized discharge container for a fluid substance according to the present invention and before using it for the first time, the rotary stopper 20 is placed at the maximum position as shown in FIG. At the lower position, the upper surface openings of the first storage part 13 and the second storage part 14 of the airtight plug body 9 are connected to the top plate 2 of the rotary plug 20.
It is sealed by a packing material 25 of No. 4.

In use, as shown in FIG. 2, when the rotary stopper 20 is raised by rotating the crosspiece 26, the upper end of the airtight stopper 9 is opened, and the first substance 15 in the first storage part 13 and the first substance 15 in the first storage part 13 are 2
The second substance 16 in the storage section 14 becomes in a state where it can be mixed. Therefore, when the pressure container 1 is turned upside down or tilted and shaken, the first substance 15 and the second substance 16 are mixed, and carbon dioxide gas is generated by a chemical reaction between the two substances.

This gas accumulates in the space 27 surrounding the outer periphery of the storage bag 6 in the pressure container 1, increasing its internal pressure. Then, this pressure acts as a force that pressurizes and compresses the outer wall of the storage bag 6 filled with the fluid substance 7, and the fluid substance 7 inside is compressed.
also fills the space 4e of the spray mechanism 4.

In this state, the push button 4 at the top of the pressure container 1 is pressed.
When a is pressed downward, the spring 4d is compressed and the shaft portion 4b
descends, and the fluid substance 7 is discharged to the outside from the nozzle hole 4f through the nozzle 4c.

The pressure inside the pressure vessel 1 is reduced by this discharge of the fluid substance 7 to the outside, but the gas generated and accumulated below the storage bag body 6 as described above compresses the storage bag body 6 and the fluid substance 7 is maintained under pressure. Note that the amount of gas generated is almost proportional to the amount of the first substance 15 and the second substance 16, so the amounts of the two substances 15 and 16 are set in relation to the volume of the pressure vessel 1. , it is necessary to create a pressure such that the fluid substance 7 inside is completely discharged.

3 and 4 show a pressurized discharge container for a fluid substance according to a second embodiment of the present invention. In this embodiment, the airtight plug 2
An airtight valve 29 made of synthetic resin is installed above the valve 8.

The airtight valve 29 has a reverse circular cavity 30 at the bottom, the lower end of which abuts the upper surface of the airtight plug 28, and an O-ring 31 is provided on the outer periphery of the airtight valve 29. It is in close contact with the inside of the pressure container 1. Further, a through hole 32 is bored vertically between the earthen walls of the airtight valve 29. Further, a double bag body 33 is held in the cavity 30 of the airtight valve 29. This bag body 33 is a bag body with both ends sealed, and is made of metal foil such as aluminum foil or resin, and two substances that generate gas when mixed are separately stored inside each bag body 33. has been done. In this embodiment, the inner bag 33a is filled with a citric acid solution as the second substance 16, and the outer bag 33b is filled with sodium hydrogen carbonate as the first substance 15, and when these are mixed, carbon dioxide gas is generated. It looks like this.

Further, a cavity 34 having a circular plane and a concave longitudinal section is provided on the upper surface of the airtight plug body 28, and a recess 35 having a circular plane shape is formed in the center of the outer bottom surface of the airtight plug body 28. ing. A through hole 36 is formed vertically in the center of the bottom wall between the cavity 34 and the recess 35, and a pin 37 is inserted into the through hole 36 from the soil surface of the bottom wall of the cavity 34. It is inserted.

The pin 37 has a conical head 37a and a shaft portion 37b. The height of the head 37a of this pin 37 is the height of the airtight plug 2.
A groove 37 cm 37c is formed at an opposing position on the outer periphery of the head. Further, the shaft portion 37b of the pin 37 is in airtight contact with an O-ring 38 attached to the upper inner wall of the through hole 36 of the airtight plug body 28, so that the pin 37 is brought into contact with the through hole 36.
The pin 37 is slidable upward while the airtight stopper 28 is tightly fitted within the pin 6.

That is, in this embodiment, a means for separating and sealing each storage section is provided inside the airtight valve 29, and is located below the storage bag body 6. Means is configured to release the seal and allow a plurality of substances to be mixed.

Next, to explain the use of the above embodiment, after manufacturing the pressurized discharge container for a fluid substance according to the present invention and before using it for the first time, as shown in FIG. 3, the head of the pin 37 is The tip of the pin 37a is located slightly lower than the height of the cavity 34 of the airtight plug body 28, and the lower end of the shaft portion 37b of the pin 37 is located within the recess 35 in the outer bottom surface of the airtight plug body 28.

In use, as shown in FIG. 4, when the pin 37 is pushed inside, the outer bag 33b and the inner bag 33a are broken, and the second substance 16 in the inner bag 33a is transferred to the first substance in the outer bag 33b. It mixes with substance 15, and carbon dioxide gas is generated by a chemical reaction between the two substances. Note that when the pin 37 is inserted into the bag body 33, the groove 37c formed in the head 37a of the pin 37 prevents the pin 33 from tightly fitting into the bag body 33. . The generated gas then flows upward through the through hole 32 formed on the upper wall surface of the airtight valve 29 and accumulates in the space 27 surrounding the storage bag body 6, increasing the internal pressure and causing the outer wall of the storage bag body 6 to rise. Compress under pressure. Other configurations and operations are the same as in the first embodiment.

As mentioned above, in this example, the generated gas moves upward through the through hole 32 of the airtight valve 29, that is, the airtight valve 29
occupies a roughly fixed position and does not rise, but for example, through hole 3
2 may not be provided. In that case, the airtight valve 29 rises due to the generated gas, thereby increasing the pressure in the upper space, and pressurizes the storage bag body 6 by the airtight valve 29 so that it can be discharged.

5 and 6 show a pressurized discharge container for a fluid substance according to a third embodiment of the present invention. In this embodiment, the airtight plug 3
The upper interior of the partition wall 4 passes through the center of the airtight plug 39.
0 into a first storage section 13 and a second storage section 14. Two substances that generate gas when mixed are separately stored in the first storage part 13 and the second storage part 14, and in this embodiment, the first storage part 13 contains a first substance. Sodium hydrogen carbonate is stored as the substance 15, and a citric acid solution is stored in the second storage part 14 as the second substance 16, and when these are mixed, carbon dioxide gas is generated. Furthermore, a membrane 41 made of metal foil, plastic film, or the like is adhered to the upper end openings of the airtight plug body 39, that is, the outer peripheries of the upper end openings of the first storage section 13 and the second storage section 14. As a result, the first and second substances 15 and 16 stored in the first storage part 13 and the second storage part 14 are sealed upwardly. At this time, in order to ensure that the center part is peeled off first, it is preferable to attach the membrane 41 so that the adhesive force at the upper center of the airtight plug 39 is stronger than that at the outer periphery. . Also, the airtight plug 39
A recess 42 having a circular plan view is formed in the outer bottom surface of the recess 42 .

Further, the central part of the partition wall 40 of the airtight plug 39 is thick, and the inner surface of the partition wall 40 has a cylindrical shape extending upward from the center of the recess 42 on the outer bottom surface of the airtight plug 39. A blank space 43 is provided.

Communication holes 44a and 4'4b, which penetrate toward the first storage section 13 and the second storage section 14, respectively, are bored in the horizontal direction at opposing positions of the upper edge portions of the peripheral wall of this cavity 43. . A rotary stopper 45 is rotatably inserted into this space 43 from below to above.

The rotary stopper 45 has a short shaft shape whose height is approximately equal to the depth of the cavity 43 of the partition wall 40, and its outer diameter is formed approximately equal to the inner diameter of the cavity 43. A hole 46 is horizontally bored in the upper part of the rotary stopper 45. Also, this rotary stopper 4
An O-ring 47 is disposed approximately at the center of the cavity 43 through which the O-ring 47 is inserted, so that the space above the O-ring 47 within the cavity 43 is kept airtight from the outside. moreover,
A cross-shaped handle 48 is integrally attached to the lower end of the rotary stopper 45. This handle 48 is an airtight plug 39
The rotary plug 45 is housed in a recess 42 on the outer bottom surface of the rotary stopper 45, and is rotated by rotating a handle 48.

Next, to explain the use of the above embodiment, after manufacturing the pressurized discharge container for a fluid substance according to the present embodiment and before using it, the handle 48 of the rotary stopper 45 is fixed as shown in FIG. The rotary plug 45 is located in a recess 42 formed on the outer bottom surface of the airtight plug body 39, the upper end of the rotary plug 45 is in contact with the inner wall of the upper surface of the cavity 43, and the hole 46 is connected to the communication holes 44a, 44 formed in the cavity 43.
Although they are located at the same height as the communication holes 44a and 44b, they intersect in the vertical direction and close the openings of the communication holes 44a and 44b.

In use, as shown in FIG.
When the handle 48 is rotated 90' from the state shown in Fig. 5,
Openings at both ends of the hole 46 formed in the rotary stopper 45 are spaces 43
A communication hole 44a formed in.

It communicates with 44b. As a result, the first
The isolation between the substance 15 and the second substance 16 in the second storage part 14 is released and they can be mixed, and the citric acid solution, which is the first substance 13, is mixed with the sodium hydrogen carbonate, which is the second substance 14. The chemical reaction between the two substances generates carbon dioxide gas, which accumulates in the first housing part 13 and increases its internal pressure, causing the outer peripheral part of the membrane 41 to peel off or break. Furthermore, this gas accumulates in the space 27 surrounding the storage bag body 6,
The outer wall of the storage bag body 6 is compressed under pressure. Other configurations and operations are the same as in the first embodiment.

It should be noted that various modifications of the present invention are possible in addition to the above embodiments. For example, as a modification of the second embodiment, in the second embodiment, the shaft portion 37b of the pin 37 is inserted into the through hole 32 of the airtight plug body 28. Although they are tightly fitted, the pin 37 is used as a rotary stopper, and a diaphragm is formed on its lower outer periphery, and a crossbar is provided at its lower end. On the other hand, a female screw is provided on the lower inner circumference of the through hole 32, and both screws are screwed together, and by rotating the crosspiece, this rotary plug is raised via the male screw and the female screw, and the tip of the rotary plug is raised. Alternatively, the bag body 33 may be broken. Further, the shape of the head 37a of the pin 37 may be, for example, a shape in which the tip is notched diagonally so that the bag body 33 can be torn apart.

In addition, as another modification of the second embodiment, the double bag body 33 clamped in the cavity of the airtight valve 29 is made into two separate bags, which are sandwiched in a vertically stacked state. It's okay. At this time, if the upper bag contains a citric acid solution as the second substance and the lower bag contains sodium bicarbonate as the first substance, the reaction can be carried out reliably and quickly.

Furthermore, as a modification of the third embodiment, a female thread is formed in the upper inner circumference of the cavity 43 of the airtight stopper 39 of the pressure-resistant container according to the third embodiment, and on the other hand, a female thread is formed in the upper inner circumference of the rotary stopper 45. A male screw is formed and both screws are screwed together with a gap between the upper end of the rotary stopper 45 and the inner wall of the upper surface of the cavity 43. Then, rotate the handle to raise the rotary stopper 45, and
The openings at both ends of the hole 46 formed in the space 43 may communicate with the openings of communication holes 44a and 44b formed in the inner wall of the cavity 43.

Furthermore, as another modification of the third embodiment, the cylindrical cavity 43 of the airtight plug 39 is formed deep almost to the upper end of the partition wall 40, and a plug replacing the rotary plug 45 is inserted from below this cavity. It is inserted through and tightly fitted into the cavity 43. This plug body has a cylindrical outer shape that is approximately equal to the inner diameter of the cavity, and has an annular groove formed on the outer periphery of its center portion. The annular groove portion may be made to communicate with the openings of the communicating holes 44a and 44b formed in the cavity 43 by forcibly pushing the plug body inside.

(Effects) As described above, according to the pressurized dispensing container for fluid substances of the present invention, the inside of the pressure resistant container in which the shrinkable storage bag body for sealingly storing the internal material, the fluid material, is suspended and stored. The system is equipped with a storage section that isolates and stores multiple substances that generate gas when mixed, and is also equipped with a means to seal the storage section, making it possible to store fluid substances such as liquids or creams in a pressure-resistant container. When filling, a general-purpose filling machine may be used, and no special pressurizing device is required. Furthermore, during storage or when not in use, the contents can be safely stored or transported without generating discharge pressure.

Furthermore, a means for mixing the plurality of substances from outside the pressure container is provided, and the internal pressure of the space around the outer periphery of the storage bag is increased by the pressure of the gas generated by mixing the plurality of substances, so that the outer wall of the storage bag is heated. It was compressed under pressure, and the fluid material was discharged to the outside by the pressure. Therefore, since the amount of gas generated can be adjusted depending on the amount of multiple substances, the magnitude of the internal pressure can be changed as appropriate depending on the contents,
The discharge pressure can be maintained at a high level until the end of discharging the contents.

Furthermore, since the amount of the substance that generates gas when mixed is relatively small, the internal volume of the fluid substance can be increased.

Furthermore, according to the pressurized discharge container for fluid substances of the present invention,
Since the fluid substance is stored in the storage bag, it is suitable for storing contents that should not come into direct contact with the inner wall of the pressure container or with generated gases such as carbon dioxide gas.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of a pressurized discharge container for a fluid substance according to a first embodiment of the present invention, FIG. 2 is a vertical cross-sectional view showing the state in use, and FIG. FIG. 4 is a vertical cross-sectional view showing a pressurized discharge container for a fluid substance according to an embodiment, FIG. 4 is a vertical cross-sectional view showing the state in use, and FIG. FIG. 6 is a vertical cross-sectional view showing the pressurized discharge container, and FIG. 6 is a vertical cross-sectional view showing the state in use. 7...Fluid substance 9.28.39...Airtight plug 13...First storage section 14...Second storage section 15 ...First substance 16...
...Second substance 20.45 ...Rotary stopper 2
4...Top plate 25...Patzkin
33...Bag body 37...Bin
41...Membrane 44a, 44b...Communication hole

Claims (1)

[Claims] In a pressurized discharge container that seals and stores a fluid substance under pressure in a pressure-resistant container and releases the seal of the pressure-resistant container to discharge the fluid substance to the outside when necessary, the inside of the pressure-resistant container is , a storage part for separating and storing a plurality of substances that generate gas when mixed is provided, and a means for sealing the storage part is provided, and above the storage part there is a shrinkable material filled with the fluid substance. A storage bag is provided, and an opening of the storage bag is connected to a discharge path for the fluid substance,
and a means for mixing the plurality of substances in the storage part from outside the pressure-resistant container, and pressurizing the outer wall of the storage bag body by the pressure of the gas generated by mixing the plurality of substances. Pressurized discharge container for sexual substances.