WO2001092131A1

WO2001092131A1 - Aerosol container

Info

Publication number: WO2001092131A1
Application number: PCT/JP2001/004395
Authority: WO
Inventors: Fuminori Kimura
Original assignee: Taisho Pharmaceutical Co., Ltd.
Priority date: 2000-05-30
Filing date: 2001-05-25
Publication date: 2001-12-06
Also published as: JPWO2001092131A1; TW533172B; AU2001260620A1

Abstract

An aerosol container comprising a first storage vessel for storing a first liquid containing an aerosol, a second storage vessel for storing a second liquid, a weighing device connected to the second storage vessel for weighing out a predetermined amount of the second liquid, a mixing chamber connected to the first storage vessel and weighing device for mixing the first liquid fed from the first vessel with the second liquid fed from the weighing device, and a spray mechanism connected to the mixing chamber for spraying to the outside the first and second liquids mixed in the mixing chamber.

Description

Specification

Aerosol container technical field

The present invention relates to an aerosol container, and more particularly, to an aerosol container capable of supplying a predetermined amount of a predetermined component.

Background art

For example, various aerosol containers have been used to eject active ingredients such as hair growth agents, hair restorers, athlete's foot drugs, and asthma drugs.

In the aerosol container, for example, a mixture of a propellant such as a liquefied gas and an active ingredient having a desired effect is contained in the container, and the mixture is ejected through an ejection mechanism having a nozzle.

Many of the drugs used in pharmaceuticals have a very narrow effective range, and in order to obtain the desired efficacy, the amount of the ejected component must be precisely administered in a prescribed amount according to the formulation design. For example, if the amount of squirt is small, the desired effect cannot be obtained, and if the amount of squirt is large, problems such as side effects may occur. Thus, an aerosol container using a metering valve has been devised (US Pat. No. 5,421,492).

In addition, depending on the active ingredient, the affected area to be administered may be limited.In the aerosol container with the metering valve as described above, the active ingredient may be administered to other than the affected area due to dripping or diffusion of the ejected liquid. There was sex.

Therefore, the present inventors have proposed an aerosol injection method that can weigh a fixed amount of the contents in an aerosol container, and dispense the measured contents in a fixed amount several times over a certain range and evenly. (Japanese Unexamined Patent Publication 1-2 4 5 9 7 8).

In the aerosol container using the proposed aerosol injection method, it was necessary to make the mixing ratio of the propellant and the active ingredient accurate. However, in many cases, in the process of filling propellant and active ingredient in the production equipment of the factory, the mixing ratio of each product has a slight individual difference, so an aerosol product that accurately dispenses a predetermined amount of the active ingredient is required. It was difficult to produce. Therefore, when the aerosol injection method described above is industrialized, it is necessary to improve the production equipment to increase the filling accuracy.

Disclosure of the invention

Therefore, as a result of earnest research, the present inventors have been able to accurately administer a predetermined amount of an active ingredient to obtain a desired effect without improving production equipment in the filling step, and to effectively administer other parts than the affected part. The inventor has invented an aerosol container in which components are less likely to be administered.

The aerosol container of the present invention,

A first container for storing a first liquid comprising a propellant or a propellant and a component which is uniformly dissolved in the propellant; and

A second storage container for storing a second liquid containing the active ingredient;

A measuring device connected to the second container for measuring a predetermined amount of the second liquid,

A mixing chamber connected to the first container and the measuring device, for mixing the first liquid supplied from the first container and the second liquid supplied from the measuring device;

An ejection mechanism connected to the mixing chamber for ejecting the first liquid and the second liquid mixed in the mixing chamber to the outside; An aerosol container characterized by comprising:

In a preferred aspect, the measuring device includes a storage chamber that stores the second liquid supplied from the second storage container, and communication between the storage chamber, the second storage container, and the mixing chamber. A valve device that opens and closes the valve, a first state expanded according to the pressure of the second liquid supplied from the second storage container, and a contracted first state after supplying the second liquid to the mixing chamber. It has an elastic device that deforms to

In a preferred embodiment, the elastic device is a resilient rubber bag installed in the housing.

In a preferred aspect, the elastic device includes a frame, a sliding plate slidably installed in the frame, and an elastic member, wherein the frame and the sliding plate are An inner space communicating with the inner space of the housing is formed, and the volume in the inner space formed by the frame and the sliding plate changes according to the position of the sliding plate; The elastic member is forcing the sliding plate in a direction in which the volume in the internal space formed by the frame and the sliding plate is reduced.

In a preferred embodiment, the elastic member is a panel.

In a preferred embodiment, the elastic member is an air panel.

In a preferred aspect, the weighing device includes a weighing chamber for storing the second liquid supplied from the second storage container, and the weighing chamber has an opening / closing lever for controlling communication with the mixing chamber. It has.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a partial cross-sectional front view of an aerosol container according to a first embodiment of the present invention.

FIG. 2 is a partial sectional view of a main part of the aerosol container of FIG.

FIG. 3 is a partial sectional view of a main part of the aerosol container of FIG. FIG. 4 is a partial cross-sectional view of a main part of the aerosol container of FIG.

Fig. 5 is a drawing explaining the operation of the aerosol container of Fig. 1.

Fig. 6 is a drawing explaining the operation of the aerosol container of Fig. 1.

Fig. 7 is a drawing explaining the operation of the aerosol container of Fig. 1.

Fig. 8 is a drawing explaining the operation of the aerosol container of Fig. 1.

Fig. 9 is a drawing explaining the operation of the aerosol container of Fig. 1.

FIG. 10 is a diagram illustrating the operation of the aerosol container of FIG.

FIG. 11 is a drawing illustrating the operation of the aerosol container of FIG.

FIG. 12 is a diagram illustrating the operation of the aerosol container of FIG.

FIG. 13 is a partial cross-sectional view of a main part of an aerosol container according to a second embodiment of the present invention.

FIG. 14 is a partial cross-sectional view of a main part of an aerosol container according to a second embodiment of the present invention.

FIG. 15 is a partial sectional view of a main part of an aerosol container according to a third embodiment of the present invention.

FIG. 16 is a partial cross-sectional view of a main part of an aerosol container according to a third embodiment of the present invention.

FIG. 17 is a partial cross-sectional view of a main part of an aerosol container according to a fourth embodiment of the present invention.

FIG. 18 is a drawing illustrating the operation of the aerosol container of FIG.

FIG. 19 is a diagram illustrating the operation of the aerosol container of FIG.

FIG. 20 is a diagram illustrating the operation of the aerosol container of FIG.

FIG. 21 is a diagram illustrating the operation of the aerosol container of FIG.

FIG. 22 is a diagram illustrating the operation of the aerosol container of FIG. FIG. 23 is a drawing illustrating the operation of the aerosol container of FIG.

FIG. 24 is a drawing illustrating the operation of the aerosol container of FIG.

FIG. 25 is a drawing illustrating the operation of the aerosol container of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

First embodiment

Next, an aerosol container 10 according to a first embodiment of the present invention will be described with reference to FIGS.

(Overview)

As shown in FIG. 1, the aerosol container 10 according to this embodiment includes a first container 12 for containing a first liquid containing a propellant, and a second container for containing a second liquid. A measuring device 16 connected to the second container 14 for measuring a predetermined amount of the second liquid; and a measuring device 16 connected to the first container 12 and the measuring device 16. A mixing chamber 18 for mixing the first liquid supplied from the first container 12 and the second liquid supplied from the measuring device 16, and a mixing chamber 18 connected to the mixing chamber 18. An ejection mechanism 20 for ejecting a mixed liquid of the first liquid and the second liquid mixed in the mixing chamber 18 to the outside is provided.

(First container)

The first storage container 12 stores a first liquid containing a general-purpose aerosol propellant and a component that does not require strict quantitative properties. The propellant is composed of CFC substitutes, dimethyl ether, LPG, etc. In general, propellants have a low boiling point and are liquid at room temperature. For this reason, propellants have the property that accurate metering is difficult. Ingredients that do not require strict quantification are, for example, fragrances, and when the aerosol container 10 is operated, for example, when the medicine is squirted into the diseased part, the amount supplied to the diseased part is small or large. Not a problem Minutes. The first storage container 12 is connected to the mixing chamber 18 via a left push button 24 having a hole 22.

The left push button 24 is normally located in the upper position as shown in FIG. 2 by a panel (not shown). The hole 22 communicates with the mixing chamber 18, whereby the interior of the first storage container 12 communicates with the mixing chamber 18.

(Second container)

The second storage container 14 stores a second liquid containing a component that requires strict measurement. An ingredient that requires strict measurement is, for example, minoxidil in a hair growth agent, and when the aerosol container 10 is operated, for example, when the medicine is ejected to the affected area, the amount supplied to the affected area is strictly determined. It is a desirable component that should be adjusted. The second liquid can contain other components necessary for a drug or the like. The second storage container 14 includes an outer rigid cylinder container 26 and an inner flexible bag 28, and is provided between the outer rigid cylinder container 26 and the flexible bag 28. The pressurized medium for compressing the flexible bag .28 from the outside and forcing the second liquid in the flexible bag 28 to the measuring device 16 is accommodated therein. The flexible bag 28 may be connected to the metering device 16 directly or via a tube.

(Measuring device)

The metering device 16 serves to send a certain amount of the second liquid to the mixing chamber 18 in one operation as described below.

As shown in FIG. 2, the weighing device 16 includes an outer housing 30, an inner housing 32 forming a storage chamber 31, and an elastic rubber bag 3 4 installed on a lower surface of the inner housing 32. And the valve stem that constitutes the valve device 3 6 And a panel 38 and a push button 40.

The inner surface of the outer housing 30 and the outer surface of the inner housing 32 form a communication passage 42, which is formed through a hole 44 provided in the outer housing 30. It always communicates with the inside of the flexible bag 28 (Fig. 2).

(Elastic rubber bag)

The elastic rubber bag 34 is installed on the lower surface of the lower wall 46 of the inner housing 32 as shown in FIGS. The elastic rubber bag 34 is hermetically connected to the lower wall 46 of the inner housing 32 at the periphery and is separable from the lower wall 46 of the inner housing 32 at the center. You. For this reason, when the pressure in the inner housing 32 increases and fluid is supplied through the holes 48 in the lower wall 46 of the inner housing 32, the elastic rubber bag 34 becomes as shown in FIG. Swell downward.

The amount of expansion of the elastic rubber bag 34 is determined by the elastic properties of the elastic rubber bag 34 and the difference between the pressure inside the elastic rubber bag 34 and the pressure outside the elastic rubber bag 34. .

The elastic properties of the elastic rubber bag 34 are kept substantially constant during the use of the aerosol container 10.

In the state shown in FIG. 3, since the inside of the elastic rubber bag 34 communicates with the inside of the flexible bag 28, the pressure inside the elastic rubber bag 34 is Equal to the pressure inside 2 8 (Figure 2). The pressure inside the flexible bag 28 is equal to the pressure of the pressurized medium contained in the sealed space formed between the outer surface of the flexible bag 28 and the inner surface of the cylinder container 26. This pressure is maintained substantially constant during the life of the aerosol container 10. The pressure outside the elastic rubber bag 34 is determined by the pressure of gas contained in a sealed space formed by the inner wall of the outer housing 30, the outer wall of the flexible bag 28, and the like. This pressure is kept substantially constant during the life of the aerosol container 10.

As described above, as shown in FIG. 3, when the inside of the elastic rubber bag 34 communicates with the inside of the flexible bag 28, when the elastic rubber bag 34 inflates downward, The amount of inflation is kept substantially constant over the life of the aerosol container 10.

On the other hand, for example, when the pressure inside the flexible bag 28 is configured to be sufficiently high so that the elastic rubber bag 34 inflates, the outer surface of the elastic rubber bag 34 becomes the inner surface of the outer housing 30. By setting so that the aerosol container 10 is in close contact with the aerosol container 10, the amount of expansion can be kept substantially constant during the use period of the aerosol container 10.

(Valve stem)

As shown in FIGS. 3 and 4, the valve stem 36 has a hole 52 received in the upper wall 50 of the outer housing 30 and a hole 56 provided in the upper surface 54 of the inner housing 32. Extends through. Valve stem 36 is always under upward force by panel 38 and is normally in the upper position as shown in FIG. 3 and when push button 40 (FIG. 2) is depressed, The lube stem 36 moves downward against the spring 38 and moves to the lower position as shown in FIG.

A communication hole 58 is formed inside the valve stem 36, and an inlet 60 is provided below the communication hole 58.

The valve stem 36 includes a housing chamber 31 formed by the inner housing 32, A valve device for opening and closing the communication between the inside of the flexible bag 28 and the mixing chamber 18 is constituted.

(Right push button)

As shown in FIG. 2, the push button 40 is fixed to the upper part of the knob stem 36. Inside the push button 40, there is formed a communication hole 61 (FIG. 2) which is always in communication with a communication hole 58 (FIG. 3) of the valve stem 36.o

(Up position)

When the push button 40 and the valve stem 36 are in the upper positions shown in FIGS. 2 and 3, the outlet 6 2 of the communication hole 6 1 of the push button 40 (FIG. 2) and the inlet 6 4 of the mixing chamber 18 Are off-center and are blocked. When the valve stem 36 is in the upper position, as shown in FIG. 3, the lower inlet portion 60 of the communication hole 58 formed inside the valve stem 36 is connected to the upper wall of the outer housing 30. The hole 52 formed in 50 contacts the inner surface of the hole 52 and is closed. Thus, the communication hole 58 of the valve stem 36 is shut off from the inside of the outer housing 30 and the inside of the inner housing 32. Further, when the valve stem 36 is at the upper position as shown in FIG. 3, the accommodation chamber 31 inside the inner housing 32 is provided with a hole 56 provided on the upper surface 54 of the inner housing 32, and the outer space. The inside of the flexible bag 28 (FIG. 2) is formed through a communication path 42 formed by the inner surface of the housing 30 and the outer surface of the inner housing 32, and a hole 44 provided in the outer housing 30. Is in communication with

(Down position)

When the right push button 40 is pressed, the valve stem 36 will move as shown in FIG. From the upper position as shown, it is pushed down against the spring 38 and moves to the lower position as shown in FIG.

When the valve stem 36 moves to the lower position as shown in FIG. 4, the valve stem 36 elastically deforms the periphery of the hole 52 of the upper wall 50 formed of the elastic material of the outer housing 30. The inlet 60 below the communication hole 58 of the valve stem 36 is disengaged from the inner surface of the hole 52 of the upper wall 50 of the outer housing 30 and is opened. Further, as shown in FIG. 4, the periphery of the hole 52 of the upper wall 50 of the outer housing 30 is elastically deformed, and the periphery of the hole 56 of the upper wall 54 of the inner housing 32 is deformed. In contact with the portion, the hole 56 of the upper wall 54 of the inner housing 32 and the communication passage 42 are shut off, whereby the accommodation chamber 31 inside the inner housing 32 and the flexible back 2 are closed. 8 (Fig. 2) is shut off.

Further, when the valve stem 36 is in the lower position as shown in FIG. 4, as shown in FIG. 6, the outlet 6 2 of the communication hole 6 1 of the push button 40 is connected to the inlet 6 4 of the mixing chamber 18. , And the communication hole 61 of the push button 40 communicates with the mixing chamber 18.

Therefore, when the valve stem 36 is in the lower position as shown in FIG. 4, the accommodation chamber 31 inside the inner housing 32 is provided with the communication hole 58 of the valve stem 36 and the communication hole of the push button 40. It communicates with the mixing chamber 18 via the inlet 61 of the mixing chamber 18 (FIG. 2) and the mixing chamber 18.

(Mixing chamber and ejection mechanism)

As shown in FIG. 2, the mixing chamber 18 and the ejection mechanism 20 include an outer housing 70, an inner housing 72, a lid member 74 formed of an elastic material, and a knob stem 76. It is composed of springs 7 and 8. (Mixing room)

That is, the mixing chamber 18 is formed by the inner surface of the outer housing 70 and the bottom surface of the inner housing 72.

As described above, the mixing chamber 18 is connected to the first storage container 12 via the left push button 24, and when the push button 24 is pressed, the mixing chamber 18 opens the hole 22. The first liquid in the first storage container 12 is supplied to the mixing chamber 18 through the first storage container 12 via the first storage container 12. The supply of the first liquid to the mixing chamber 18 ends when the pressure inside the mixing chamber 18 and the pressure inside the first storage container 12 become equal.

The mixing chamber 18 is also connected to a metering device 16. When the right push button 40 is pressed, the second liquid stored in the storage chamber 31 of the inner housing 32 is supplied to the mixing chamber 18. The supply of the second liquid to the mixing chamber 18 starts when the elastic rubber bag 34 expands as shown in Figs. 2 and 3 and ends when the elastic rubber bag 34 becomes flat as shown in Fig. 4. I do.

As described above, the swelling amount of the swelling state shown in FIGS. 2 and 3 is kept substantially constant during the use period of the aerosol container 10. As described below, the supply of the second liquid to the mixing chamber 18 is performed before the first liquid is supplied to the mixing chamber 18 in a state where the mixing chamber 18 is equal to the atmospheric pressure. And, since the elastic rubber bag 34 has a sufficiently strong elastic force, at the end of the supply of the second liquid to the mixing chamber 18, the elastic rubber bag 34 becomes flat as shown in FIG. State. Therefore, the supply amount of the second liquid to the mixing chamber 18 is always constant c (ejection mechanism)

The ejection mechanism 20 includes an inner housing 72, a lid member 74 formed of an elastic material, a valve stem 76, an outer housing 70 and a valve stem. 7 and 6 are arranged between the panel and the panel. The measuring chamber 80 of the ejection mechanism 20 is formed by the inner surface of the inner housing 72 and the bottom surface of the lid member 74.

The valve stem 76 is normally forced to an upper position by a spring 78, as shown in FIG. 2; for example, when pressed against the panel 78 by a human finger, As shown in 11, the lid member 74 made of an elastic material is deformed and moved to the lower position.

The valve stem 76 has a first communication hole 82 and a second communication hole 84. When the valve stem 76 is in the upper position as shown in FIG. 2, the first communication hole 82 connects the mixing chamber 18 to the measuring chamber 80, and the second communication hole 84 Is closed by a lid member 74, and the measuring chamber 80 and the outside are shut off. When the valve stem 76 is in the lower position as shown in FIG. 11, the mixing chamber 18 and the measuring chamber 80 are shut off, and the second communication hole 84 is connected to the measuring chamber 80. It communicates with the outside.

The valve stem 76 is in the upper position, the first communication hole 82 connects the mixing chamber 18 to the measuring chamber 80, and the right side is in a state where the measuring chamber 80 and the outside are shut off. Is pressed, the second liquid is supplied from the weighing device 16 to the mixing chamber 18 and the weighing chamber 80, and then the left push button 24 is pressed to store the first liquid. The first liquid is supplied from the container 10 to the mixing chamber 18 and the measuring chamber 80. As a result, a liquid mixture of the first liquid and the second liquid at a constant pressure is held in the mixing chamber 18 and the measuring chamber 80. Then, when the knob 76 is pushed down to the lower position as shown in FIG. 11, the mixing chamber 18 and the measuring chamber 80 are shut off, and the second communication hole 84 is connected to the measuring chamber 80. The mixture in the measuring chamber 80 is ejected to the outside, and the total The pressure in the volume chamber 80 becomes equal to the atmospheric pressure, and the ejection ends. Thereafter, the valve stem 76 is returned to the upper position, and the first communication hole 82 allows the mixing chamber 18 to communicate with the measuring chamber 80, so that the measuring chamber 80 and the outside are shut off. The liquid mixture in the mixing chamber 18 is supplied to the measuring chamber 80, and the pressure in the mixing chamber 18 becomes equal to the pressure in the measuring chamber 80.

When the movement between the upper position and the lower position of the valve stem 76 is repeated, the mixed liquid is ejected to the outside from the second communication hole 84 of the valve stem 76, and the pressure in the mixing chamber 18 gradually decreases, When the pressure becomes equal to the atmospheric pressure, the jetting of the mixture stops. For example, it is designed to end the eruption when the above movement is performed 5 to 6 times. The number of times the above-mentioned movement is completed before the ejection ends depends on the pressure of the mixed liquid supplied into the mixing chamber 18 and the measuring chamber 80 and the volumes of the mixing chamber 18 and the measuring chamber 80 as appropriate. Can be determined.

(Actuation)

Next, the operation of the aerosol container 10 according to the first embodiment of the present invention will be described with reference to FIGS.

First, as shown in FIG. 5, the valve stem 76 of the ejection mechanism 20 is located at the upper position, and the mixing chamber 18 and the measuring chamber 80 of the ejection mechanism 20 communicate with each other through the first communication hole 82. And is shut off from the outside. The pressure in the mixing chamber 18 and the measuring chamber 80 of the ejection mechanism 20 is equal to the atmospheric pressure. The weighing device 16 is in the state shown in FIG. 2, and the accommodation chamber 31 of the inner housing 32 of the weighing device 16 communicates with the inside of the flexible bag 28, and the elastic rubber bag 3 4 is in a swollen state. The storage chamber 31 of the inner housing 32 of the weighing device 16 and the mixing chamber 18 are shut off. As shown in FIG. 6, when the right push button 40 is depressed, the housing 31 of the inner housing 32 of the weighing device 16 is shut off from the interior of the flexible bag 28 (FIG. 2), and the weighing is performed. The storage chamber 31 of the inner housing 32 of the device 16 communicates with the mixing chamber 18 via the communication hole 58 of the valve stem 32 and the communication hole 61 of the push button 40, and a predetermined amount of the The two liquids are supplied to the mixing chamber _{18.c As} shown in Fig. 7, when the push button 40 is released, the spring 38 shown in Fig. 2 raises the valve stem 36 and the push button 40. Returning to the position, the storage chamber 31 of the inner housing 32 of the weighing device 16 and the mixing chamber 18 are shut off.

Next, as shown in FIG. 8, when the left push button 24 is depressed, the first container 12 and the mixing chamber 18 communicate with each other through the hole 22 of the push button 24, The liquid is supplied to the mixing chamber 18.

As shown in FIG. 9, when the depression of the push button 24 is released, the push button 24 returns to the position by a panel not shown, and the first storage container 12 and the mixing chamber 18 are shut off. Since the first liquid contains a propellant, when the first liquid is transferred to the relatively large mixing chamber 18 and the measuring chamber 80, the propellant becomes uniform between the first liquid and the second liquid. Is mixed.

Then, as shown in FIG. 10, the mixing chamber 18 and the measuring chamber 80 are in a jettable state containing the first liquid and the second liquid.

Next, as shown in FIG. 11, when the valve stem 76 is pressed down against the spring 78, the mixing chamber 18 and the measuring chamber 80 are shut off, and the measuring chamber 80 is connected to the outside with the valve stem. The liquid mixture of the first liquid and the second liquid in the measuring chamber 80 is ejected to the outside through the second communication holes 84 of the liquid crystal 76.

As shown in Fig. 12, when the valve stem 76 is released, The panel 78 returns the valve stem 76 to the upper position, shuts off the measuring chamber 80 and the outside, and connects the measuring chamber 80 and the mixing chamber 18 through the first communication hole of the valve stem 76. Communicate. Then, the mixture of the first liquid and the second liquid in the mixing chamber 18 moves into the measuring chamber 80 until the pressure in the measuring chamber 80 becomes equal to the pressure in the mixing chamber 18.

Again, as shown in FIG. 11, when the valve stem 76 is pushed down against the spring 78, the mixing chamber 18 and the measuring chamber 80 are shut off, and the measuring chamber 80 is connected to the outside with the valve stem 7. 6, and the mixed liquid of the first liquid and the second liquid in the measuring chamber 80 is ejected to the outside.

By repeating the states of FIGS. 11 and 12, the first liquid supplied to the mixing chamber 18 and the measuring chamber 80 by the single operation of the push button 40 and the push button 24 respectively, The mixed liquid of the second liquid can be ejected a plurality of times. With one operation of the right push button 40, the amount of the second liquid supplied into the mixing chamber 18 and the measuring chamber 80 is measured by the measuring device 16 as described above, so that it is substantially Is always constant. For this reason, the amount of the components that require strict measurement in the second liquid is also substantially always constant.c By repeating the states in FIGS. 11 and 12, the mixing chamber 18 and the The mixed liquid of the first liquid and the second liquid supplied to the measuring chamber 80 is jetted out.When the pressure in the mixing chamber 18 and the measuring chamber 80 becomes equal to the atmospheric pressure, the jetting is finished, Return to the state shown in FIG.

Second embodiment

Next, an aerosol container according to a second embodiment of the present invention will be described with reference to FIGS.

The aerosol container according to the second embodiment is an aerosol container according to the first embodiment. Only the measuring device is different from the air container, and the rest is configured similarly to the air container according to the first embodiment.

The aerosol container metering device 1 16 according to the second embodiment is shown in FIGS.

As shown in 14, the outer housing 13 0, the inner housing 13 2 that forms the accommodating chamber 13 1, and the frame 1 8 6 formed by the lower part of the inner housing 13 2 The sliding plate 188 that is slidably arranged inside, the panel 190 that forces the sliding plate 188 upward, the valve stem 1336, and the valve stem 1336 upward Spring 1 3 8 and push button 4

0 (FIG. 2).

The inner surface of the outer housing 130 and the outer surface of the inner housing 1 32 form a communication passage 1 42, and the communication passage 1 42 is formed by the outer housing 1 3

It is always in communication with the inside of the flexible bag 28 (FIG. 2) through the hole 144 provided in the hole 0. Or they are connected via a pipe.

The sliding plate 188 is arranged so as to be slidable in a vertical direction in a frame body 186 constituted by a lower portion of the inner housing 132. The sliding plate 1 8 8 separates the inside of the frame 1 8 6 of the inner housing 1 3 into an upper space and a lower space, and while the sliding plate 1 8 8 is sliding vertically, the frame 1 8 6 The interior blocks the upper and lower spaces.

A panel 190 is disposed between the sliding plate 188 and the lower wall 192 of the outer housing 130, forcing the sliding plate 188 upward. As a result, the pressure inside the inner housing 13 2 increases, and when fluid is supplied through the holes 1 4 8 of the lower wall 1 4 6 of the inner housing 1 3 2, the sliding plate 1 8 8 Move down against 0.

The amount of movement below the sliding plate 188 depends on the elasticity of the panel 190 and the sliding It is determined by the difference between the upper and lower pressures of the moving plate 188. The elastic properties of the panel 190 and the difference between the upper and lower pressures of the slide plate 188 are kept substantially constant during the use of the aerosol container 10. Alternatively, the sliding plate 1888 is configured to move to the maximum compression state of the panel 190 by the pressure of the first liquid supplied to the storage chamber 1331. The aerosol container according to the second embodiment of the present invention is provided with the weighing device 1 16 as described above. Therefore, by pressing down the push button 40 (FIG. 2) once, the mixing chamber is opened from the weighing device 1 16. A constant amount of the second liquid can be supplied to the second liquid.

Third embodiment

Next, an aerosol container according to a third embodiment of the present invention will be described with reference to FIGS.

The aerosol container according to the third embodiment differs from the aerosol container according to the first embodiment only in the weighing device, and is otherwise configured in the same manner as the aerosol container according to the first embodiment.

The aerosol container metering device 2 16 according to the third embodiment comprises an outer housing 230 and an inner housing 2 32 forming a storage chamber 2 31, as shown in FIGS. 15 and 16. A sliding plate 288 slidably disposed in a frame body 286 formed by a lower portion of the inner housing 232, a valve stem 236, and a valve stem 236. It has a panel 238 forcing upwards and a push button 40 (FIG. 2).

The outer housing 230 has an upper compartment 292 that houses the inner housing 230, and a lower compartment 2294.

Upper section 2 92 and lower section 2 94 of outer housing 230 are through holes 2. 96 are communicating. As shown in FIGS. 15 and 16, the frame 2 286 of the inner housing 2 32 has no lower wall, so the sliding plate 288 is in the upper position as shown in FIG. , The internal space 202 formed by the sliding plate 28 8, the side wall of the frame 28 8 of the inner housing 23 2, and the intermediate wall 29 8 of the outer housing 2 30 It communicates with the inner space 204 formed by the lower section 294 of the outer housing 230 and the intermediate wall 298. These internal spaces 202 and 204 contain gas having a pressure lower than the internal pressure of the flexible bag 28 (FIG. 2) and higher than the atmospheric pressure.

For this reason, the second liquid is supplied from the flexible bag 28 (FIG. 2), the pressure inside the inner housing 2 32 increases, and the hole 2 48 in the lower wall 2 4 6 of the inner housing 2 32 is increased. When the fluid is supplied through the sliding plate 288, the sliding plate 288 moves downward against the pressure of the gas in the internal spaces 202 and 204, and as shown in FIG. Touch the top surface of 298.

When the valve stem 2 36 is pushed down and the accommodation chamber 2 31 and the mixing chamber 18 (FIG. 2) are communicated, the sliding plate 2 88 8 is formed by the gas in the internal spaces 202 and 204. It is forced upward and contacts the underside of the lower wall 2 46 of the inner housing 2 32, as shown in FIG. In this way, the gas and the like in the internal spaces 202 and 204 constitute an air spring for forcing the sliding plate 2888 in one direction.

The amount of downward movement of the sliding plate 188 is determined by the volume of the internal spaces 202 and 204, and the difference between the upper pressure and the lower pressure of the sliding plate 288. These are kept substantially constant during the life of the aerosol container 10 o The aerosol container according to the third embodiment of the present invention is provided with the weighing device 2 16 as described above, so that the push button 40 (FIG. 2) is depressed once, so that the The amount of the second liquid supplied to is constant.

Fourth embodiment

Next, an aerosol container 310 according to a fourth embodiment of the present invention will be described with reference to FIGS.

(Overview)

As shown in FIG. 17, the aerosol container 310 according to this embodiment includes a first storage container 312 for storing a first liquid including a propellant, and a component that requires strict measurement. A second storage container 314 for storing a second liquid containing: a measuring device 316 connected to the second storage container 314 for measuring a predetermined amount of the second liquid; (1) Mixing the first liquid supplied from the first container 312 and the second liquid supplied from the measuring device 316, which is connected to the container 312 and the measuring device 316 Mixing chamber 318 for mixing the first liquid and the second liquid mixed in the mixing chamber 318 connected to the mixing chamber 318 and ejecting the mixed liquid to the outside. Ejection mechanism 320.

(First and second container)

The first storage container 310 stores a first liquid containing a general-purpose aerosol propellant and a component that does not require strict quantitative properties. The first storage container 3 10 is connected to the mixing chamber 3 18 via a push button 3 24 having a hole 3 22.

The second storage container 314 stores a second liquid containing a component that requires strict measurement. The second storage container 3 1 4 is composed of the outer rigid cylinder container and the inner Between the outer rigid cylinder container and the inner flexible bag, the flexible bag is compressed from the outside, and the second bag in the flexible bag is compressed. A pressurized medium is contained which forces the liquid into the metering device 3 16. These are the same as the configuration of the first embodiment.

(Measuring device)

As shown in FIG. 17, the weighing device 316 has a weighing chamber 373 that forms a first weighing space 370 and a second weighing space 372 that are always in communication with each other.

The first measuring space 370 is formed by a hole formed in the outer housing 350.

The second weighing space 3 7 2 has a cylindrical inner lateral surface 3 7 1 of the outer housing 3 50, an inner lower surface 3 7 6 of the outer nosing 3 50, and a bottom surface 3 7 8 of the inner housing 3 5 2. And a wall member 381 provided on the inner lower surface 376 of the outer housing 350, and an opening / closing lever 382 fixed to the valve stem 356.

The second weighing space 372 is formed by an arc of the cylindrical inner side surface 371 of the outer housing 350 and a chord formed by a wall member 380 and a straight line of the opening / closing lever 382. It has a horizontal cross-sectional shape.

The valve stem 3556 is rotatable about a central axis. By rotating the valve stem 356, the open / close lever 382 fixed thereto is moved between the closed position shown in FIG. 17 and the open position shown in FIG.

As shown in Fig. 17, when the opening / closing lever 3 82 is closed and the first weighing space 370 and the right push button 340 are blocked from the hole 370, the weighing chamber 370 is opened. 3 forms a sealed space having a certain volume that is shielded from the outside. As shown in FIG. 22, when the opening / closing lever 382 is opened, the measuring chamber 373 and the mixing chamber 318 communicate with each other.

(Mixing room)

The mixing chamber 318 is formed by the inner surface of the outer housing 350 and the lower surface 378 of the inner housing 352.

As described above, the mixing chamber 3 1 8 is connected to the first container 3 1 2 via the left push button 3 2 4. When the push button 3 2 4 is pressed, the mixing chamber 3 1 8 Is communicated with the inside of the first storage container 3 12 through the hole 3 22, and the first liquid in the first storage container 3 12 is supplied to the mixing chamber 3 18 c (spout Mechanism)

The ejection mechanism 320 is disposed between the inner housing 352, the lid member 354 formed of an elastic material, the valve stem 356, and the outer housing 350 and the valve stem 356. The measuring chamber 380 of the ejection mechanism 320 constituted by the spring 358 formed by the spring 358 is formed by the inner surface of the inner housing 352 and the bottom surface of the lid member 354.

The valve stem 356 extends through an inner hole of the inner housing 352 and an inner hole of the lid member 354. The valve stem 356 has a constriction 383 having a smaller diameter than the inner hole of the inner housing 352 located above the inner hole of the inner housing 352 in the upper position shown in FIG.

The valve stem 3556 is normally forced to an upper position by a panel 3558 as shown in Figure 17 and the lower part of the neck 383 of the valve stem 3556 and the inner housing 3552 Are in close contact with each other, and the mixing chamber 318 and the measuring chamber 380 are shut off. When the valve stem 356 is pushed down against the spring 358, the first fluid is passed through the gap between the hole of the inner housing 352 and the constriction 383 of the valve stem 356. The liquid mixture of the second liquid and the second liquid flows from the mixing chamber 318 into the measuring chamber 380.

When the valve stem 356 is pushed further down, the upper part of the constricted part 383 of the valve stem 356 and the bottom of the inner housing 352 are brought into close contact, and the mixing chamber 318 and the weighing chamber 380 is shut off. Then, as shown in FIG. 24, the valve stem 3556 deforms the lid member 354 formed of an elastic material, and the communication hole 3664 of the valve stem 3556 becomes the measuring chamber 38. Make 0 and the outside communicate with each other, and eject the mixture to the outside.

Releasing the depression causes the valve stem 356 to move to the upper position by the panel 358. When moving to the upper position, the mixed liquid of the first liquid and the second liquid flows into the mixing chamber 3 1 8 through the gap between the inner hole of the inner housing 3 52 and the constricted section 3 8 3 of the valve stem 3 56. From the weighing chamber 380.

When the valve stem 356 reaches the upper position, the measuring chamber 380 and the outside are shut off, and the lower part of the constricted part 383 of the valve stem 356 and the bottom of the inner housing 352 are brought into close contact with each other. The mixing chamber 318 and the measuring chamber 380 are shut off.

(Actuation)

Next, an operation of the aerosol container 310 according to the fourth embodiment of the present invention will be described with reference to FIGS.

First, as shown in FIG. 17, the valve stem 356 of the ejection mechanism 320 is in the upper position, and the opening / closing lever 382 is in the closed position. The first measuring space 370 and the second measuring space 372 are sealed from the outside, and the pressure inside is equal to the atmospheric pressure. As shown in FIG. 18, when the right push button 340 is depressed, the second liquid is supplied from the second storage container 314 to the first weighing space 370 and the second weighing space 372. . The weighing chamber 373 consisting of the first weighing space 370 and the second weighing space 372 has a constant total volume, and the pressure of the second liquid supplied from the second container 314 is constant. Therefore, the volume of the second liquid supplied to the measuring chamber 373 is substantially always constant.

As shown in Fig. 19, when the push button 340 is released from being pressed down, the push button 340 returns to the upper position by an unillustrated panel, and the second storage container 3 1 4 and the weighing chamber 3 7 3 Is shut off.

As shown in Fig. 20, when the left push button 3 2 4 is pushed down, the first container 3 1 2 and the mixing chamber 3 1 8 communicate with each other through the hole 3 2 2 of the push button 3 2 4 The first liquid is supplied to the mixing chamber 318.

As shown in Fig. 21, when the push button 3 2 4 is released from being pressed down, the push button 3 2 4 returns to the position by the spring (not shown), and the first storage container 3 1 2 and the mixing chamber 3 18 Is shut off.

Then, as shown in Fig. 22, when the valve stem 3556 is rotated around the central axis and the opening / closing lever 382 is moved to the open position, the valve stem 3556 is mixed with the second liquid in the measuring chamber 3737. The first liquid in the chamber 318 is mixed.

Next, as shown in FIG. 23, when the valve stem 356 is pressed down against the spring 358, the liquid mixture in the mixing chamber 318 flows into the inner hole of the inner housing 352 and the valve. From the gap between the constricted portion 383 of the stem 3556 flows into the measuring chamber 380.

As shown in Fig. 24, when the valve stem 3556 is pressed downward against the spring 3558, the upper part of the neck 383 of the valve stem 3556 The bottom of the inner housing 352 is in close contact with the bottom of the inner housing 352, shutting off the mixing chamber 318 from the weighing chamber 380, and the valve stem 356 deforms the lid member 354 formed of an elastic material. At least, the communication hole 364 allows the measuring chamber 380 to communicate with the outside, and the mixed solution is ejected to the outside.

As shown in Fig. 25, when the release is released, the valve stem 3556 moves to the upper position, and the gap between the inner hole of the inner housing 352 and the constriction 383 of the valve stem 3556. Thus, the mixed liquid of the first liquid and the second liquid flows from the mixing chamber 318 into the measuring chamber 380. When the valve stem 356 reaches the upper position, the measuring chamber 380 and the outside are shut off.

Again, as shown in FIG. 23, when the valve stem 356 is pressed down against the spring 358, the measuring chamber 380 is connected to the outside through the communication hole 364 of the valve stem 356. The mixed liquid of the first liquid and the second liquid in the measuring chamber 380 is ejected to the outside.

By repeating the state shown in Fig. 2 3-25, the first operation of the push button 340 and the push button 324 of the first time, the first The mixed liquid of the liquid and the second liquid can be ejected a plurality of times. The amount of the second liquid supplied into the measuring chamber 373 by one operation of the push button 340 is substantially constant at all times. For this reason, the amount of the component requiring strict measurement in the second liquid is also substantially always constant.

Claims

The scope of the claims

1. a first storage container for storing a first liquid comprising a propellant or a propellant and a component which is uniformly dissolved in the propellant;

An ejection mechanism connected to the mixing chamber for ejecting the first liquid and the second liquid mixed in the mixing chamber to the outside;

An aerosol container comprising:

2. The weighing device is

A storage chamber for storing the second liquid supplied from the second storage container, and a valve device for opening and closing communication between the storage chamber, the second storage container, and the mixing chamber;

An elastic device that deforms into a first state expanded according to the pressure of the second liquid supplied from the second storage container and a contracted first state after supplying the second liquid to the mixing chamber. The aerosol container according to claim 1, comprising:

3. The aerosol container according to claim 2, wherein said elastic device is an elastic rubber bag installed in said housing.

4. The elastic device has a frame, a sliding plate slidably installed in the frame, and an elastic member;

An inner space in which the frame and the sliding plate communicate with an inner space of the housing; Forming

The volume in the internal space formed by the frame and the sliding plate changes according to the position of the sliding plate,

3. The aerosol according to claim 2, wherein the elastic member is forcing the sliding plate in a direction in which a volume in an internal space formed by the frame and the sliding plate is reduced.

5. The aerosol container according to claim 4, wherein the elastic member is a panel.

6. The aerosol container according to claim 4, wherein the elastic member is an air panel.

7. The weighing device includes a weighing chamber that stores the second liquid supplied from the second storage container, and the weighing chamber includes an opening / closing lever that controls communication with the mixing chamber. The aerosol container according to claim 1, wherein