JPH03124584A - Pressurized discharge container for fluid substance - Google Patents

Abstract

PURPOSE:To obtain a pressurized discharge container of fluid substance safely storable the substance or effectively usable discharge pressure by providing an airtight stopper body, which has receiving parts for separately receiving a plurality of substances intended to be mixed together to produce a gas, and a membrane for sealing the receiving parts. CONSTITUTION:When the handle 25 of a rotary stopper 22 is rotated through 90 deg., the opening parts at both ends of a through hole 23 formed in the rotary stopper 22 are brought into communication with communication holes 21a and 21b formed in a cavity 20. In this way a substance 16 in a first receiving part 14 and a substance 17 in a second receiving part 15 are mixed together to cause a chemical reaction to take place therebetween so as to produce carbon dioxide, which raises the inner pressure of these receiving parts 14 and 15 to separate a membrane 18 from an airtight stopper body 10. Furthermore, the carbon dioxide stays between an airtightness raising valve 5 and the airtight stopper body 10 to raise its inner pressure, whereby the airtightness raising valve 5 moves upwardly along the inner wall of a pressure resisting container 1 to pressurize a fluid substance 8. The fluid substance 8 is filled in a cavity 4e of a spray mechanism 4 and, when a push button 4a is depressed downwardly, the fluid substance 8 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 and closures 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 fluorocarbons and gases in order to protect the global environment, and there is a strong desire to develop pressurizing means to replace fluorocarbon gas in spray containers. has been done.

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 vibrator-like 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 was made in view of the above-mentioned drawbacks, and its purpose is to form a pressurizing means without using fluorocarbon gas, and to have a relatively large internal volume of a fluid substance as a content. , and adjust the internal pressure appropriately depending on the contents.
As it is changeable, the discharge pressure can be maintained at a high level until the end of discharging the contents, and furthermore, the discharge pressure of the contents is not generated during storage or when not in use, allowing safe storage or effective use of the discharge pressure. It is an object of the present invention to provide a pressurized discharge container for a fluid substance that can be used to discharge a fluid substance under pressure.

(Means for Solving the Problems) In order to achieve the above object, in the pressurized discharge container for a fluid substance according to the present invention, the fluid material is hermetically stored in a pressure-resistant container in a pressurized state. In a pressurized discharge container that releases the seal of the pressure container and discharges the fluid substance to the outside,
A pressure-resistant container is provided with an airtight stopper having an opening at the top and having a storage section for isolating and storing a plurality of substances that generate gas when mixed inside the pressure-resistant container, and covering the opening of the storage section with a membrane member. A means for releasing the isolation of multiple substances from the outside and mixing them was provided, and the membrane was ruptured or peeled by the gas pressure generated by mixing the multiple substances, making it possible to apply gas pressure to the fluid substance side. It is.

(Function) Multiple substances that generate gas when mixed are separated from the outside of the pressure container and mixed within the storage space of the airtight stopper. Then, gas is generated within the housing, which increases the internal pressure within the housing, causing the membrane to break or part or all of the membrane to peel off from the housing, and the gas flowing out increases the internal pressure within the pressure vessel.

In this state, when a part of the pressure container is opened 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 to 7 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. The lid member 3 has a push button 4a and a shaft 4 in the center.
A known spray mechanism 4 is provided, which includes a nozzle 4C, a spring 4d, a cavity 4e, and a nozzle hole 4f.

Further, an airtight rising valve 5 made of synthetic resin is installed in the lower part of the interior of the outer shell 2. This airtight rising valve 5 has a reverse circular cavity 6 at the bottom, and is in close contact with the inner wall surface of the pressure vessel 1 via an O-ring 7 provided on the outer periphery thereof, and extends along the inner wall of the pressure vessel 1. It is attached so that it can be slid upwards.

Further, the inside of the pressure-resistant container 1 above the airtight rising valve 5 is filled with a fluid substance 8 such as lotion.

Further, a female screw 9 is formed on the inner peripheral surface of the lower open end of the outer shell 2, and an airtight plug 10 having an upper opening is attached thereto. The airtight plug body 10 is made of synthetic resin, and as shown in FIG. 4, a male thread 11 that can be screwed into the female thread 9 of the outer shell 2 is formed on its outer periphery, and both screws 9 and 11 are screwed together. By doing so, the airtight plug 10 is fixed to the outer shell 2 and the opening bottom of the outer shell 2 is closed. Further, an O-ring 12 is provided on the upper outer periphery of the airtight stopper 10, and this O-ring 12 is brought into close contact with the inner wall surface of the pressure-resistant container 1.
Thereby, the space above the O-ring 12 inside the pressure vessel 1 is kept airtight from the outside.

The inside of the airtight plug 10 is divided into a first storage part 14 and a second storage part 15 by a partition wall 13 passing through the center of the airtight plug 10.
It is divided into two parts. Two substances that generate gas when mixed are separately stored in the first storage part 14 and the second storage part 15, and in this embodiment, the first storage part 14 contains a first substance. A citric acid solution is stored as the substance 16, and sodium hydrogen carbonate is stored in the second storage part 15 as the second substance 17, and when these are mixed, carbon dioxide gas is generated.

Further, a membrane 18 made of metal foil or plastic film as shown in FIG. 3 is attached to the upper end of the airtight plug 10 so as to cover the opening. The first and second substances 16 and 17 stored in the storage section 14 and the second storage section 15 are sealed upward (toward the fluid substance 8 side). Specifically, the membrane 18 is bonded to the upper outer periphery of the airtight plug 10 and the upper surface of the partition wall 13-, and preferably the adhesive force at the outer periphery is relatively weak.

Furthermore, the central portion of the partition wall 13 of the airtight plug 10 is thick. Further, a recess 19 having a circular plan view is formed in the outer bottom surface of the airtight plug body 10. A cylindrical cavity 20 is provided on the inner surface of the partition wall 13 upward from the center of the recess 19. At opposing positions of the upper edge portions of the peripheral wall of this cavity 20, there are communicating holes 21 that penetrate toward the first storage portion 14 and the second storage portion 15, respectively.
a and 21b are bored in the horizontal direction. A rotary frame 22 is rotatably inserted through this space 20 from below to above.

The rotating frame 22 has a short shaft shape whose height is approximately equal to the depth of the cavity 20, and its outer diameter is approximately equal to the inner diameter of the cavity 20. A through hole 23 is provided in the upper part of this rotating frame 22.
are drilled horizontally. Further, an O-ring 24 is disposed approximately at the center of the cavity 20 through which the rotating frame 22 is inserted, so that the space above the O-ring 24 in the cavity 20 is kept airtight from the outside. . Furthermore, a cross-shaped handle 25 as shown in FIG. 5 is integrally attached to the lower end of the rotating frame 22. This handle 25
is housed in a recess 19 on the outer bottom surface of the airtight plug body 10, and the rotating frame 22 is rotated by rotating the handle 25.

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 until it is used, the handle 25 of the rotating frame 22 is fixed as shown in FIG. It is located in a recess 19 formed on the outer bottom surface of the airtight plug body 10, the upper end of the rotating frame 22 is in contact with the inner wall of the upper surface of the cavity 20, and the through hole 23 is connected to the communication holes 21a, 21 formed in the cavity 20.
b, and intersect with each other in the vertical direction to close the openings of the communicating holes 21a and 12b.

In use, as shown in FIG.
When the handle 25 is rotated 90'' from the state shown in Fig. 1,
Openings at both ends of the through hole 23 formed in the rotating frame 22 are the empty spaces 2.
It communicates with communication holes 21a and 21b formed at 0. As a result, the separation between the first substance 16 in the first storage part 14 and the second substance 17 in the second storage part 15 is released and they can be mixed, and the first substance 16, which is mostly liquid, is mixed with the second substance 17 in the second storage part 15. 2 storage section 1
5 side, carbon dioxide gas is generated due to a chemical reaction between the two substances, and is accumulated in both storage sections 14 and 15 (particularly in the second storage section 15). Then, this gas is
The membrane 18 is peeled off from the airtight plug 10 by increasing the internal pressure inside.
If the adhesive is strong, it will break). Further, this gas accumulates between the airtight raising valve 5 and the airtight stopper 10, increasing the internal pressure thereof. Then, the airtight rising valve 5 is urged upward by this pressure, and the airtight rising valve 5 moves upward while sliding along the inner wall of the pressure container 1, compressing the fluid substance 8 under pressure.

The compressed fluid substance 8 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 8 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 8 to the outside, but as mentioned above, the gas generated and accumulated below the airtight rising valve 5 causes the airtight rising valve 5 to rise, and the fluid substance is 8 is maintained under pressure. Note that since the amount of gas generated is almost proportional to the amount of the first substance 16 and second substance 17, the amounts of the two substances 16 and 17 are set in relation to the volume of the pressure vessel 1. , it is necessary to create a pressure such that the fluid substance 8 inside is completely discharged.

Note that the rotary stopper 22 in the first embodiment is not limited to this shape, and may have a shape such as that shown in FIG. 6, for example. In this modification, the cavity 20a of the airtight plug 10a
A female thread 26 is formed on the upper inner circumference of the holder. On the other hand, a male thread 27 is formed on the upper outer circumference of the rotary stopper 22a. When the container is unused, the rotary stopper 22
There is a gap between the upper end of the space 20a and the inner wall of the upper surface of the cavity 20a, and the through hole 23a is located slightly below the communicating holes 21a and 21b.

In use, the handle 28 is rotated. Then, the male screw 27 of the rotary plug 22a is raised by the screw engagement with the female screw 26, and the openings at both ends of the through hole 23a formed in the rotary plug 22a are connected to the openings of the communicating holes 21a and 21b formed in the cavity 20a. Communicate with the department.

As a result, as in the first embodiment, both storage portions 14° and 15°
The isolation of both substances 16 and 17 is released and they can be mixed.

Other configurations and operations are the same as in the first embodiment.

Further, in another modification of the first embodiment as shown in FIG. 7, the cylindrical cavity 20b of the airtight plug 10b is approximately spaced apart! ! It is formed deeply to the upper end of 13. A plug body 29 is inserted from below this cavity 20b.

This plug body 29 has a cylindrical shape whose outer diameter is approximately equal to the inner diameter of the cavity 20b, and is capable of sliding upward. Further, an annular groove 30 is formed on the outer periphery of the center portion of the plug body 29 .

When the pressurized discharge container for a fluid substance according to this other modification is not in use, there is a gap between the upper end of the stopper 29 and the inner wall of the upper surface of the cavity 20b, and the annular groove 30 is empty. The lower end of the plug body 29 is located below the communication holes 21a and 21b formed in the airtight plug body 10b, and the lower end of the plug body 29 is located in the recess 1 on the outer bottom surface of the airtight plug body 10b.
It is located within 9b.

In use, when the plug 29 is pushed inside (upwards), the annular groove 30 of the plug 29 communicates with the openings of the communication holes 21a and 21b formed in the cavity 2°b, and both storage compartments are connected to each other. 1
4.15 is released, and the first substance 16 and second substance 17 can be mixed through the outer periphery of the annular groove 30. Other configurations and operations are the same as in the first embodiment.

8 to 13 show a second embodiment of the present invention. In this embodiment, as shown in FIG. 11, the inside of the airtight plug 31 is divided into two parts, a first storage part 14 and a second storage part 15, by a partition wall 32 passing through the center of the airtight plug 31. There is. The central part of the partition wall 32 of this airtight plug body 31 is thick, and a through hole 33 is bored vertically through the central part. A female thread 34 is formed at the lower inner circumference of the through hole 33 . And this through hole 33
The shaft portion 35a of the rotating plug 35 shown in FIG. 12 is inserted through the airtight plug body 31 from above, and the male screw 36 formed at the lower part of the shaft portion 35a is screwed into the female screw 34. ing. Further, an O-ring 37 is attached to the upper part of the shaft portion 35a of the rotary plug 35, and an O-ring 37 is attached to the through hole 3 of the airtight plug body 31.
It is in airtight contact with the upper inner wall of No. 3. Furthermore, a film 38 such as a metal foil such as aluminum or a plastic film is pasted to the outer circumferential portion of the upper end of the airtight plug 31, as shown in FIG. The upper opening of the holder is hermetically closed to seal the first substance 16 and the second substance 17. At this time, the outer circumference of the airtight plug 31 is bonded so that it is stronger than the center.

Further, a crossbar 39 is integrally attached to the lower end of the shaft portion 25a of the rotary stopper 35. This crosspiece 39 is the airtight plug body 3
The rotary stopper 35 is housed in a planar circular recess 40 formed on the outer bottom surface of the rotary plug 35, and by rotating this crosspiece 39, the rotary stopper 35 is raised via the female screw 34 and the male screw 36.

In an unused state of the pressurized discharge container for a fluid substance according to the second embodiment, the crosspiece 39 is in a lower position within the recess 40 formed in the outer bottom of the airtight plug body 31, and the rotary plug body 39 is in a lower position. The tip of the membrane 35 is located slightly below the lower surface of the membrane 38.

In use, as shown in Figure 9, the airtight plug 3
When the crossbar 39 of the rotary stopper 35 at the bottom of the rotary stopper 1 is rotated to raise the turnable stopper 35, the tip of the recessed turn stopper 35 pushes up the center of the membrane 38, and the first storage part 14 and the second storage part 15 are separated. The airtight plug 31 is peeled off from the upper end opening of the partition wall.
Since the upper end opening is opened, the separation between the first substance 16 in the first storage part 14 and the second substance 17 in the second storage part 15 is released, allowing them to mix. Therefore, the pressure container 4
When the film 1 is turned upside down or tilted and shaken, the first substance 16 and the second substance 17 are mixed, and a chemical reaction between the two substances generates carbon dioxide gas, causing the film 38 to peel off or break. Other configurations and operations are the same as in the first embodiment.

Note that the rotary stopper 35 in the second embodiment is not limited to such a shape, and may be, for example, as shown in FIG. 13. In this example, the inner diameter of the inner wall of the upper part of the through hole 33a is larger than that of the lower part. Then, the plug 42 is inserted from above the airtight plug 31a through the through hole 33a.
is inserted. The upper part of the shaft part 42a of this plug body 42 is formed to have a larger outer diameter than the lower part, and an O-ring 43 is attached to the upper part, so that the plug body 42 is inserted into the through hole 33a. While the airtight plug body 31a is tightly fitted, the plug body 42 can be slid upward.

In use, the plug 4 at the bottom of the airtight plug 31a
When the crossbar 44 of No. 2 is pushed inside, the plug body 42 fits into the through hole 33.
The tip of the stopper 42 rises while sliding on the inner wall of the membrane 38.
Push up the center of the. As a result, the upper end opening of the airtight plug 31a is opened, so that the separation between the first substance 16 in the first storage part 14 and the second substance 17 in the second storage part 15 is released, and they can be mixed. Become. Other configurations and operations are the same as in the second embodiment.

Further, in each of the above-described embodiments, the fluid substance 8 can be discharged by raising the airtight rising valve with the generated gas, but the present invention is not limited to this, and for example, the fluid substance 8 can be discharged from a tube ( (It is not necessary to install an airtight rising valve) and pressurize the tube with the gas pressure generated, or if it is okay for the fluid substance to mix with the gas, use an airtight rising valve. Of course, any configuration may be used, such as not providing the above-mentioned tube or the like and allowing the gas to be directly added to the fluid substance. In short, the structure of the gas generation part is to provide an airtight stopper with an opening at the top, which has a storage part for isolating and storing multiple substances that generate gas when mixed, inside a pressure-resistant container, and to open the opening of the storage part. It is sufficient if it is covered with a membrane member.

(Effects) As described above, according to the pressurized discharge container for a fluid material of the present invention, a plurality of fluid materials that generate gas by mixing are placed inside the pressure container that seals and stores the fluid material as the content. An airtight stopper is provided that has a storage area to isolate and store the substance, and a membrane is provided to seal the storage area, so when filling a fluid substance such as a liquid or cream into a pressure-resistant container, 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.

Further, a means is provided for releasing the isolation of the plurality of substances from the outside of the pressure vessel and mixing them, and the membrane is ruptured by the pressure of the gas generated by mixing the plurality of substances, and the internal pressure within the pressure vessel is increased. The pressure was used to discharge the fluid substance to the outside.

Therefore, since the amount of gas generated can be adjusted according to the amount of multiple substances, the internal pressure can be changed as appropriate depending on the contents, and the discharge pressure can be increased until the end of the discharge of the contents. can be maintained.

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.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a pressurized discharge container for a fluid substance according to the first embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing the state in use, and FIG. 3 is an enlarged perspective view showing the membrane. Fig. 4 is an enlarged perspective view showing the airtight plug body, Fig. 5 is an enlarged perspective view showing the rotary stopper, and Figs. 6 and 7 are modifications of the pressurized discharge container of the fluid substance of the first embodiment. A longitudinal sectional view showing an example, FIG. 8 is a second embodiment of the present invention.
A vertical cross-sectional view showing a pressurized discharge container for a fluid substance according to an example, FIG. 9 is a vertical cross-sectional view showing the state in use, FIG. 10 is an enlarged perspective view showing the membrane, and FIG. 11 is an airtight stopper. An enlarged perspective view showing the body, FIG. 12 is an enlarged perspective view showing the rotary stopper and crosspiece,
FIG. 13 is a longitudinal cross-sectional view showing a modification of the pressurized discharge container for a fluid substance according to the second embodiment. 18.38...Membrane 21a, 21b-...Communication hole 22.22a, 35...Rotary stopper 23.23a...Through 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 , an airtight stopper with an opening at the top having a storage section for isolating and storing a plurality of substances that generate gas when mixed is provided, and the opening of the storage section is covered with a membrane member, and the outside of the pressure container is A means for releasing the isolation of the plurality of substances and mixing them is provided, and the membrane is ruptured or peeled by the pressure of the gas generated by mixing the plurality of substances, and the pressure of the gas is applied to the fluid substance side. A pressurized discharge container for a fluid substance, characterized in that: