JP4917338B2 - Dual aerosol product residual gas discharge mechanism, double aerosol product equipped with the residual gas discharge mechanism, and filling method of the dual aerosol product - Google Patents

Description

  The present invention relates to a residual gas discharge mechanism for breaking a partition wall in a double aerosol product and discharging a pressurizing agent sealed by the partition wall to the outside.

Japanese Patent Laid-Open No. 9-267876 JP-A-11-171268

The double aerosol product includes a container body, an aerosol valve (hereinafter referred to as a valve) attached to the opening of the container body, and a stock solution and a pressurizing agent filled in the container body, and the container body is filled with the stock solution. The undiluted solution chamber, a gas chamber filled with a pressurizing agent that pressurizes the undiluted solution chamber, and a partition wall that partitions the undiluted solution chamber and the gas chamber and reduces the volume of the undiluted solution chamber as the undiluted solution decreases.
Since it is configured in this way, by opening the valve communicating with the stock solution chamber of the double aerosol product, the stock solution chamber communicates with the atmosphere via the valve, and the stock solution chamber is communicated with the pressurizing agent via the partition wall. The pressure is reduced and the stock solution is pushed out.

  In such a double aerosol product, since the stock solution is sealed by the partition wall, the stock solution is discharged no matter what direction the double aerosol product is used (for example, the double aerosol product is inverted). can do. Further, even a stock solution having a high viscosity such as gel or paste and a fine foaming stock solution containing a foaming agent such as isopentane can be reliably discharged. Therefore, double aerosol products are used in many cosmetics such as packs and shaving foams.

  However, since the gas chamber filled with the pressurizing agent of the double aerosol product is blocked from the atmosphere by the partition wall, the user can discharge the pressurizing agent even if the valve is kept open by pushing down the injection member. Can not. In other words, even when the entire amount of the stock solution of the double aerosol product is discharged, the pressurizing agent remains in the container, and it is not necessarily safe to dispose the pressurizing agent in a state where it remains in the container. .

  In view of such a problem, the present applicant, as shown in Patent Document 1, in the double aerosol product provided with the inner bag, when the stock solution in the inner bag is discharged and the inner bag is contracted, A degassing jig that breaks the bag from the inside is proposed. This degassing jig is attached to the lower outer peripheral portion of the valve, and includes a sharp protrusion that is inclined toward the inner wall of the inner bag. Because of this construction, the double aerosol product equipped with this degassing jig can break the inner bag just by opening the valve by operating the injection member etc. and discharging almost all of the stock solution. The pressurizing agent in the gap (gas chamber) between the inner bag and the container body can be discharged to the outside.

Furthermore, as shown in Patent Document 2, the present applicant is a degassing tool that breaks the inner bag of a double aerosol product, and is disposed so as to surround a main body having a sharp tip and a tip of the main body. A gas venting tool comprising a protector is disclosed. This degassing tool has such flexibility that the protector is deformed by contraction of the inner bag.
This degassing tool can break the inner bag just by performing the discharge operation as described above, and since the sharp tip is not exposed during assembly work, it protects the operator and the sharp tip Can do.
However, the sharp protrusions of Patent Documents 1 and 2 protrude to the same extent as the outer diameter of the rising wall of the mounting cup. And in the double aerosol container with the inner bag, since the opening of the inner bag and the rising wall of the mounting cup are almost the same size, the sharp protrusion will get caught in the opening of the inner bag when the position is slightly shifted. , Hurt the inner bag. For this reason, when placing the valve on the opening of the inner bag, it is necessary to lower the valve straight from directly above, which is troublesome.

  The present invention can be manufactured without damaging an operator and a partition wall (inner bag), and is produced from a viewpoint different from Patent Document 1 and Patent Document 2. The residual gas discharge mechanism capable of exposing the housed penetrating member by operating from the outside through the aerosol valve after being crimped to the double aerosol product, and the double aerosol product including the residual gas discharge mechanism It aims to provide a method for filling aerosol products.

The residual gas discharge mechanism for a double aerosol product according to the present invention includes a container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, and the stock solution in the container body. Provided in a double aerosol product that is divided into a stock solution chamber to be filled and a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber and includes a partition wall that reduces the volume of the stock solution chamber as the stock solution decreases. A residual gas discharge mechanism that allows the stock solution chamber and the gas chamber to communicate with each other through the partition when the volume of the stock solution chamber reaches a predetermined size, and a penetrating member having a perforated portion that breaks the partition, and the perforation thereof And a penetrating member having a pressure receiving portion, and being accommodated in the protective member so as to be movable and / or deformable. The protective member accommodates the perforated portion. Having a receiving part, Perforations in the bottom of the volume portion is provided with a bottom plate to slide, it has a first state in which the drilling unit is housed in a protective member, and a second state in which the perforated portion is exposed from the protective member, wherein is inserted into the container body in a first state, after attaching the aerosol valve in the container body, it is characterized in that it is possible to the second state by applying pressure to the pressure receiving portion of the aerosol valve by operation.

A second aspect of the residual gas discharge mechanism for a double aerosol product of the present invention includes a container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, and the container A double aerosol comprising a main body that is divided into a stock solution chamber filled with a stock solution and a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and a partition that reduces the volume of the stock solution chamber as the stock solution decreases. A residual gas discharge mechanism provided in a product that allows the stock solution chamber and the gas chamber to communicate with each other through the partition when the volume of the stock solution chamber reaches a predetermined size, and has a perforated portion that breaks the partition A member and a protective member capable of covering the perforated portion, the protective member having a pressure receiving portion, and being attached to the penetrating member or the housing of the valve in a detachable state. Is housed in a protective member The first state and the second state in which the perforated part is exposed from the protective member are inserted into the container body in the first state, and the aerosol valve is attached to the container body. The second state can be achieved by operating and applying pressure to the pressure receiving portion.
A third aspect of the residual gas discharge mechanism for a double aerosol product according to the present invention includes a container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, and the container. A double aerosol comprising a main body that is divided into a stock solution chamber filled with a stock solution and a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and a partition that reduces the volume of the stock solution chamber as the stock solution decreases. A residual gas discharge mechanism provided in a product that allows the stock solution chamber and the gas chamber to communicate with each other through the partition when the volume of the stock solution chamber reaches a predetermined size, and has a perforated portion that breaks the partition A member and a protective member that can cover the perforated part, and have a first state in which the perforated part is housed in the protective member and a second state in which the perforated part is exposed from the protective member. The penetrating member has a pressure receiving portion. Movably and / or deformably housed in the protective member, inserted into the container body in the first state, and after the aerosol valve is attached to the container body, pressure is applied to the pressure receiving part via the aerosol valve. By adding, it can be set to the 2nd state, The pressure to the said penetration member is the filling pressure of a stock solution, It is characterized by the above-mentioned.
A fourth aspect of the residual gas discharge mechanism for a double aerosol product of the present invention includes a container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, and the container A double aerosol comprising a main body that is divided into a stock solution chamber filled with a stock solution and a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and a partition that reduces the volume of the stock solution chamber as the stock solution decreases. A residual gas discharge mechanism provided in a product that allows the stock solution chamber and the gas chamber to communicate with each other through the partition when the volume of the stock solution chamber reaches a predetermined size, and has a perforated portion that breaks the partition And a protective member that can cover the perforated part. The penetrating member has a pressure receiving part provided at the upper part and a perforated part provided at the lower part, and is movable to the protective member. Accommodated and penetrating part Is constantly biased upward, and has a first state in which the perforated part is housed in a protective member and a second state in which the perforated part is exposed from the protective member, and the container body in the first state. After being inserted into the container body and attaching the aerosol valve to the container main body, the aerosol valve can be operated to apply the pressure to the pressure receiving portion so that the second state can be obtained.
A fifth aspect of the residual gas discharge mechanism for a double aerosol product according to the present invention includes a container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, and the container A double aerosol comprising a main body that is divided into a stock solution chamber filled with a stock solution and a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and a partition that reduces the volume of the stock solution chamber as the stock solution decreases. A residual gas discharge mechanism provided in a product that allows the stock solution chamber and the gas chamber to communicate with each other through the partition when the volume of the stock solution chamber reaches a predetermined size, and has a perforated portion that breaks the partition And a cylindrical protective member that can cover the perforated portion, and the penetrating member has a pressure receiving portion provided in the upper portion and a perforated portion provided in the lower portion, and is movable. It is accommodated in the protective member, the receiving Parts are provided with a flange-like outer periphery provided with a projection that the protective member protrudes inwardly on an inner surface thereof, the aerosol valve, a normal ejection operation depressing the stem, the outer peripheral edge of the pressure receiving portion There is possible an operation which applies pressure to the pressure receiving portion to be press down deeply scan Temu than its normal discharge operation beyond the projections, a first state in which the drilling unit is housed in a protective member, The perforated part has a second state exposed from the protective member, and is inserted into the container body in the first state, and after the aerosol valve is attached to the container body, the aerosol valve is operated to the pressure receiving part. It is characterized by being able to be in the second state by applying pressure.

The double aerosol product of the present invention comprises a container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber in which the stock solution is filled in the container body, and its The raw material chamber is divided into a gas chamber filled with a pressurizing agent for pressurizing, and a partition for reducing the volume of the raw solution chamber as the amount of the raw solution decreases, and the residual gas discharge mechanism of the present invention are provided .

The double aerosol product filling method of the present invention includes a container body provided with a gas filling valve at the bottom, an aerosol valve attached to the opening, a stock solution and a pressurizing agent filled in the container body, The container body is partitioned into a stock solution chamber filled with a stock solution and a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and a partition that reduces the volume of the stock solution chamber as the stock solution decreases, and the remaining of the present invention A double aerosol product filling method comprising the first, second, third or fourth aspect of the gas discharge mechanism , wherein an aerosol valve is fixed to the opening of the container body, and the gas is supplied to the gas chamber. Fill the pressurizing agent through the filling valve, discharge the air in the stock solution chamber to reduce the volume of the stock solution chamber, fill the stock solution chamber with the stock solution through the aerosol valve, and operate the aerosol valve to receive the pressure Apply pressure to the part It is characterized in that the residual gas discharge mechanism from a first state to a second state.
A second aspect of the double aerosol product filling method of the present invention is a container body having a gas filling valve at the bottom, an aerosol valve attached to the opening thereof, a stock solution filled in the container body, and an additive. A partition that divides the container body into a stock chamber filled with a stock solution and a gas chamber filled with a pressurizing agent that pressurizes the stock solution, and reduces a volume of the stock chamber as the stock solution decreases A dual aerosol product filling method comprising the third aspect of the residual gas discharge mechanism of the present invention, wherein an aerosol valve is fixed to the opening of the container body, and a gas filling valve is provided in the gas chamber. The pressure agent is filled in, the air in the stock solution chamber is discharged to reduce the volume of the stock solution chamber, and the stock solution chamber is filled with the stock solution through the aerosol valve. Plus It is characterized in that the gas discharge mechanism from a first state to a second state.

The third aspect of the double aerosol product filling method of the present invention includes a bottomed cylindrical container body, an aerosol valve attached to the opening, a stock solution and a pressurizing agent filled in the container body, Partitioning the container body into a stock chamber filled with a stock solution and a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and a partition wall for reducing the volume of the stock solution chamber as the stock solution decreases , A dual aerosol product filling method comprising the residual gas discharge mechanism of the first, second, third or fourth aspect of the residual gas discharge mechanism, wherein the gas chamber is filled with a pressurizing agent and the aerosol. The valve is fixed to the opening of the container body, the air in the stock solution chamber is discharged to reduce the volume of the stock solution chamber, the stock solution chamber is filled with the stock solution via the aerosol valve , and the aerosol valve is operated to the pressure receiving portion. residual gas discharger by applying a pressure It is characterized in that the second state from the first state.
The fourth aspect of the double aerosol product filling method of the present invention includes a bottomed cylindrical container body, an aerosol valve attached to the opening, a stock solution and a pressurizing agent filled in the container body, Partitioning the container body into a stock chamber filled with a stock solution and a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and a partition wall for reducing the volume of the stock solution chamber as the stock solution decreases, A dual aerosol product filling method comprising the third aspect of the residual gas discharge mechanism, wherein the gas chamber is filled with a pressurizing agent and an aerosol valve is fixed to the opening of the container body, Air is discharged to reduce the volume of the stock solution chamber, and the stock solution chamber is filled with the stock solution via the aerosol valve. At the same time, the pressure is applied to the pressure receiving portion by the filling pressure of the stock solution, and the residual gas discharge mechanism is moved from the first state. Set to the second state It is characterized by a door.

  The residual gas discharge mechanism of the present invention has a first state in which the perforated portion of the penetrating member is housed in the protective member, and a second state in which the perforated portion is exposed from the protective member. After the aerosol valve is attached to the container body and operated through the aerosol valve, it can be brought into the second state, so that workers do not come into contact with the perforated part when assembling the aerosol product. At the same time, the sharpness of the perforated part can be protected. Further, the partition wall is not damaged when the aerosol valve is placed in the opening of the container body, and the manufacturing is not time-consuming.

  In such a residual gas discharge mechanism, the penetrating member has a pressure receiving portion and includes a protective member that accommodates the penetrating member so as to be movable and / or deformable therein, or the protective member receives the pressure. And is attached to the penetrating member or the valve housing in a detachable state. By applying pressure to the pressure receiving part via the aerosol valve, the residual gas discharge mechanism is changed from the first state to the second state. In this case, the above-described operation can be obtained simply by providing a conventional aerosol valve with a residual gas discharge mechanism.

  In this way, when the pressure applied to the penetrating member or the protective member is the stock solution filling pressure, or when the pressure is a force that directly pushes down the penetrating member by pushing down the stem of the aerosol valve, the transition to the second state is externally performed. Easy to do. In particular, when the penetrating member is pushed down using the stem, after the stock solution is exhausted or when the user thinks that the double aerosol product is unnecessary, the user can surely enter the second state, The partition wall is not penetrated unexpectedly, and the aerosol product can be used efficiently.

Since the double aerosol product of the present invention is provided with the residual gas discharge mechanism of the present invention, a double aerosol product having the above-described action can be obtained.
The double aerosol product filling method of the present invention allows the stock solution to be filled after almost all of the air in the stock solution chamber is discharged and the oxygen concentration in the stock solution chamber is lowered. This is the most suitable method for filling a double aerosol product equipped with the residual gas discharge mechanism of the present invention.

The present invention will be described with reference to the drawings. FIG. 1 is a sectional side view showing an embodiment of the double aerosol product of the present invention, FIG. 2a is a sectional side view showing a first state of a residual gas discharge mechanism of the double aerosol product of FIG. 1, and FIG. 3a and 3b are cross-sectional side views and perspective views showing a protective member of the double aerosol product of FIG. 1, and FIGS. 4a to 4d are methods for filling the double aerosol product of FIG. 4e is a sectional side view showing a discharged state, FIG. 5 is a sectional side view showing another embodiment of the dual aerosol product of the present invention, and FIGS. 6a and 6b are double views of FIG. FIG. 6c is a sectional side view showing the second state of the residual gas discharge mechanism of the aerosol product, FIGS. 7a to 7b are process diagrams showing the method of filling the double aerosol product of FIG. 7c is a sectional side view showing a normal discharge state, and FIG. Sectional side view showing a state output, FIG. 7e process diagrams showing another method of filling a double aerosol product of Fig. 5, FIG. 8 is a sectional side view showing a range of the present invention, FIG. 9a in FIG. 8 9B is a cross-sectional side view showing the second state of the residual gas discharge mechanism outside the scope of the present invention , FIG. 9B is a cross-sectional side view showing the second state, and FIGS. 9C to 9E are used for the residual gas discharge mechanism of FIG. FIG. 10a to FIG. 10d are process diagrams showing a method of filling a double aerosol product outside the scope of the present invention of FIG. 8, FIG. 10e is a sectional side view showing a discharge state, and FIG. FIG. 12a is a sectional side view showing a first state of the residual gas discharge mechanism of the double aerosol product of FIG. 11, and FIG. 12b is its second state. FIG. 13 is a double aerosol of the present invention. 14a is a sectional side view showing the residual gas discharge mechanism, FIG. 14b is a side view showing the penetrating member, and FIG. 14c is a top view showing a perforated portion of the penetrating member. 14d is a sectional side view showing the protective member, FIGS. 14e and 14f are top views showing the first state and the second state of the residual gas discharge mechanism, respectively, and FIG. 14g is used for the residual gas discharge mechanism. 14h is a top view showing a first state of a residual gas discharge mechanism using the pressure receiving member, and FIGS. 15a to 15d are process diagrams showing a method for filling the double aerosol product of FIG. 15e is a cross-sectional side view showing a discharge state, FIGS. 16a and 16b are cross-sectional side views showing still another embodiment of the residual gas discharge mechanism of the present invention, and FIGS. 16c and 16d are residual gas discharge mechanisms of the present invention. Yet another embodiment of 17a and 17b are cross-sectional side views showing still another embodiment of the residual gas discharge mechanism of the present invention, and FIGS. 18a and 18b are views of the residual gas discharge mechanism of the dual aerosol product of the present invention. 1 state

  A double aerosol product 10 shown in FIG. 1 includes a container main body 11, an inner bag 12 inserted into the container main body, a valve 13 attached to the opening of the container main body with the inner bag interposed therebetween, and a lower end of the valve. The residual gas discharge mechanism 14 that breaks through the inner bag when the volume of the inner bag attached to the container reaches a predetermined size, the stock solution A filled in the inner space (stock solution chamber) of the inner bag, the container body and the inner body It consists of the pressurizing agent B with which the clearance space (gas chamber) between bags is filled.

  The container body 11 includes a barrel portion 16 in which a metal plate such as tinplate or tin-nickel steel plate (TNS) is formed into a cylindrical shape, an eyepiece portion 17 secured to the upper end thereof by double winding, and a lower end of the barrel portion. A three-piece can having a bottom portion 18 fixed by double winding, and a bead portion 19 is formed in an upper end opening of the eyepiece portion. Further, the bottom portion 16 is formed in a mountain shape that rises in a tapered shape toward the center, and a gas filling valve 20 is provided at the center thereof.

  The inner bag 12 is an integrally molded product made of a thin synthetic resin that is molded into a bottomed cylindrical shape by blow molding or the like, and is formed so that the diameter is reduced from the cylindrical barrel portion 21 and the upper end of the barrel portion. The shoulder portion 22 extends, the cylindrical neck portion 23 extends upward from the shoulder portion, the flange portion 24 formed at the upper end of the neck portion, and the bottom portion 25 formed at the lower end of the trunk portion. Moreover, the bottom part 25 is provided with the pinch-off part 26 which seals the lower end (bottom part) of the trunk | drum at the time of blow molding.

  The valve 13 includes a mounting cup 28 fixed to the bead portion 19 of the container body with the flange portion 24 and the gasket 27 sandwiched therebetween, a cylindrical housing 29 held in the center of the mounting cup, and an upper and lower portions in the housing. A stem 31 having a stem hole 30 that is movably accommodated and communicates between the atmosphere and the internal space (stock solution chamber) of the inner bag 12, a spring 32 that constantly biases the stem upward, and the stem is located above. And a stem rubber 33 for closing the stem hole 30. A cylindrical engaging portion 34 that engages with the residual gas discharge mechanism 14 is formed at the lower end of the housing 29. The material of these members is not particularly limited, and is appropriately selected from metals, synthetic resins, rubbers, and the like.

  As shown in FIG. 2 a, the residual gas discharge mechanism 14 includes a protection member 35 having a cylindrical mounting portion 37 that engages with the outer peripheral surface 34 a of the engaging portion 34 of the housing 29, and the engaging portion 34 of the housing 29. The penetrating member 36 is inserted into the internal passage 34b and accommodated in the protective member so as to be movable up and down.

As shown in FIGS. 3A and 3B, the protection member 35 includes a cylindrical mounting portion 37, an inverted T-shaped storage portion 38, and a partition plate 39 that partitions the mounting portion 37 and the storage portion 38.
The mounting portion 37 is a cylindrical portion that is engaged so as to cover the engaging portion 34 of the housing and the outer peripheral surface 34a, and a communication hole 40 that communicates the inside of the mounting portion and the stock solution chamber at a position above the partition plate 39. Is formed. An insertion hole 39a for inserting the pressure receiving portion 48 of the penetrating member is formed at the center of the partition plate 39.
The accommodating portion 38 includes a hollow and flat disc-shaped accommodating portion main body 42 and a cylindrical connecting portion 43 that extends upward from the center of the upper surface and is connected to the lower end of the mounting portion as separate members. is there. However, it may be formed integrally. A central hole 44 is formed in the bottom surface 38a of the housing portion 38, and a window 45 through which a leg 47 of a penetrating member 36 described later is pushed out is formed in a cylindrical outer peripheral wall 38b. Further, the housing portion 38 is provided with notches 46 formed in the axial direction from the connecting portion 43 to the housing portion main body 42 in four directions. The accommodating portion main body 42 may be a hollow and flat rectangular parallelepiped.

  Returning to FIG. 2, the penetrating member 36 includes a columnar pressure receiving portion 48 and four legs 47 extending from the lower end thereof, and the tip 49 of the leg 47 is sharply cut, and the tip 49 is the present invention. It becomes a perforated part (sharp protrusion). Further, the legs 47 are formed to be openable and closable in four directions. The penetrating member can be obtained by molding or processing using a synthetic resin harder than the partition wall or a metal such as stainless steel.

  The residual gas discharge mechanism 14 thus formed engages the pressure receiving portion 48 with the leg 47 of the penetrating member closed, from the central hole 44 of the protective member accommodating portion 38 through the insertion hole 39a of the partition plate 39. After inserting into the internal passage 34b of the joint portion, the leg 47 of the penetrating member is slightly opened and accommodated in the notch 46, and is assembled by being supported on the bottom surface 38a of the accommodating portion main body. The state of the residual gas discharge mechanism 14 is a first state in which the tip 49 (perforated portion) of the penetrating member is accommodated (see FIG. 2a).

In addition, in this embodiment, since the accommodating part main body 42 and the connection part 43 are used as separate members, the connecting part 43 may be mounted after the penetrating member 36 is accommodated in the accommodating part main body 42.
The number of legs 47 is not particularly limited, but it is preferable to provide 2 to 10, particularly 3 to 8, so that the inner bag can be surely penetrated regardless of the shape of the inner bag. Further, it is preferable that the distance between the legs is equiangular in consideration of easiness of spreading when subjected to pressure.
Further, the window is preferably formed according to the number of legs, but may be an annular window.

In this state, when the stem hole 30 of the valve is opened and a fluid such as a stock solution (preferably a viscous fluid) is pressure-filled toward the inner bag, the stock solution passes through the lower hole 34c of the housing to The inner passage 34b is reached, the pressure receiving portion 48 of the penetrating member 36 is pushed downward, and the inner bag is filled from the communication hole 40 of the mounting portion 37. When the penetrating member receives pressure downward in this way, the leg 47 of the penetrating member slides on the bottom surface 38a of the housing portion main body, and its tip 49 protrudes from the window 45 of the housing portion, and the residual gas discharge mechanism 14 Enters the second state (see FIG. 2b). Further, after the valve 13 of the double aerosol product 10 is once opened, the stock solution A is always filled in the engaging portion 34. Therefore, there is little risk that the penetrating member 36 will rise and return to the first state.
Here, pressure filling means filling a fluid such as a stock solution from a valve with a pressure equal to or higher than the pressure (0.2 to 1.0 MPa) of the pressurizing agent filled in the gas chamber.

  Next, the filling method of this double aerosol product 10 is demonstrated. First, the inner bag 12 is inserted into the container body 11, and the valve 13 with the residual gas discharge mechanism 14 in the first state attached to the lower end is crimped and fixed to the opening of the container body 11 (see FIG. 4a). Subsequently, the pressurizing agent B is filled into the space (gas chamber) between the container body and the inner bag from the gas filling valve 20 on the bottom 18 of the container body. At this time, the inner bag 12 is slightly contracted by the pressure of the pressurizing agent (see FIG. 4b). As the pressurizing agent, a compressed gas such as nitrogen gas, carbon dioxide gas, nitrous oxide gas, or compressed air, or a liquefied gas such as liquefied petroleum gas, dimethyl ether, or chlorofluorocarbon can be used.

  Thereafter, the stem 31 is pushed down to open the stem hole 30 and the air in the inner space (stock solution chamber) of the inner bag 12 is discharged to the outside. At this time, since the inner bag is under pressure by the pressurizing agent, almost all of the air in the inner space is discharged, and the volume of the inner space becomes 10% or less, preferably 5% or less, of the full injection amount. However, since the residual gas discharge mechanism 14 is in the first state and the tip 49 (perforated portion) of the leg of the penetrating member 36 is housed in the protective member 35, the inner bag 12 is not torn (see FIG. 4c). Finally, the stock solution A is pressure-filled from the stem 31 into the inner bag 12 (stock solution chamber) with the stem 31 pushed down. As a result, as described above, the stock solution A pushes the distal end 49 (perforated portion) of the leg of the penetrating member from the window 45 of the protective member 35, and the residual gas discharge mechanism 14 is brought into the second state, and at the same time, the aerosol product 10 is completed ( See FIG. 4d).

  By attaching the injection member 41 to the double aerosol product 10 configured as described above, the stock solution can be discharged from the aerosol product in an arbitrary direction. Further, the volume of the stock solution chamber of the double aerosol product 10 is reduced in proportion to the discharge amount of the stock solution. Therefore, when the volume of the inner bag 12 decreases to a predetermined size, the inner bag 12 is broken by the residual gas discharge mechanism 14 in the second state. As a result, the pressurizing agent B sealed and filled in the gap space (gas chamber) between the container body 11 and the inner bag 12 flows into the inner bag 12 and is discharged from the injection member 41 through the valve 13. In this way, the double aerosol product 10 is also subjected to a discharge process almost simultaneously with the disappearance of the stock solution A while performing a normal injection operation (see FIG. 4e).

Further, the dual aerosol product 10 can be assembled with the residual gas discharge mechanism 14 in the first state in which the tip 49 (perforated portion) of the leg of the penetrating member is housed in the protective member 35. And the front-end | tip 49 (perforated part) which pierces an inner bag can be protected. Furthermore, the inner bag or the like is not damaged in the manufacturing process, for example, when the valve is attached to the opening of the inner bag.
Further, as described above, when the air in the stock solution chamber is discharged to the outside and the stock solution is filled from the valve, in the double aerosol product using the gas discharge tool of Patent Document 1 or 2, the air in the stock solution chamber is discharged to the outside. At that time, the inner bag will be torn. Thus, the residual gas discharge mechanism of the present invention can be used as a common discharge mechanism without being limited to the double aerosol product filling method.

  In the double aerosol product 50 shown in FIG. 5, the penetrating member of the residual gas discharge mechanism is pushed down by the lower end of the stem. This double aerosol product 50 includes a container body 51 integrally formed into a bottomed cylindrical shape by impact processing, squeezing and ironing processing, an inner bag 52 to be inserted therein, and an inner bag at the opening of the container body. A valve 53 that is sandwiched and attached, a residual gas discharge mechanism 54 that breaks through the inner bag when the volume of the inner bag attached to the lower end of the valve reaches a predetermined size, and an inner space of the inner bag are filled. It consists of undiluted solution A and pressurizing agent B filled in the space between the container body and the inner bag.

  The container body 51 is formed into a bottomed cylindrical shape having a bottom portion 56 and a cylindrical body portion 57 by squeezing or impacting a metal plate (disk) such as aluminum or tinplate, and then, at the upper end of the body portion. A shoulder portion 58 is formed by necking, and a bead portion 59 is formed by curling on the upper end of the shoulder portion. Further, the bottom portion 56 has a mountain shape that tapers toward the center, and is not provided with a gas filling valve. The container body 51 may be made of another material having pressure resistance such as synthetic resin or pressure glass.

  The inner bag 52 is substantially the same as the inner bag 12 of the double aerosol product 10 of FIG. 1, and is an integrally molded product made of a thin synthetic resin.

  As with the double aerosol product valve 13 of FIG. 1, the valve 53 includes a mounting cup 61, a housing 62 held by the mounting cup, a stem 63 accommodated in the housing so as to be vertically movable, and the stem. A first spring 64 that always urges upward, a second spring 65 that urges the stem upward when the stem is pushed down to a certain depth, and a stem rubber 66 that closes the stem hole are provided.

As shown in FIG. 6 a, the housing 62 is formed on a cylindrical housing body 68 having a bottom surface, a cylindrical engaging portion 69 formed at the lower end thereof, and a side surface of the housing body, and communicates with the inner bag 52. The communication hole 70 is provided. The outer peripheral surface 69a of the engaging portion 69 is engaged with the residual gas discharge mechanism 54, and a pressure receiving portion 84 of the penetrating member and a pressing portion 75 at the lower end of the stem which will be described later are inserted into the internal passage 67 on the inner peripheral surface. Further, a stepped portion 71 that supports the second spring 65 is formed at the upper part of the inner peripheral surface of the engaging portion.
The stem 63 is formed at a lower end of a cylindrical stem main body 72, two step portions (first step portion 73 and second step portion 74) projecting downward inward in the radial direction. The column-shaped push part 75 is provided.

  The first spring 64 is supported between the bottom surface of the housing main body 68 and the first step portion 73 of the stem, and the second spring 65 is a step portion 71 on the inner peripheral surface of the engaging portion and the second step portion 74 of the stem. Supported between. However, the length of the second spring 65 is designed so as not to contact the second step portion 74 of the stem when the first spring 64 is extended (when the stem is not pushed down) (see FIG. 6a).

  The stem 63 of the valve 53 configured as described above can move up and down in a state where the pressing portion 75 at the lower end of the stem is inserted into the internal passage 67 of the engaging portion of the housing. However, the stem pressing portion may be inserted into the internal passage 67 when the stem 63 is pushed down. When the stem is pushed down, the elastic force of the first spring 64 is first received until the second step portion 74 of the stem contacts the second spring 65. In this state, the stem hole is opened from the stem rubber 66, and the stock solution in the inner bag can be discharged (normal discharge operation, see FIG. 6b). Next, when the stem is further pushed down, the stem 63 receives the elastic force of the first spring 64 and the second spring 65, and therefore requires a larger operating force than the above-described normal discharge operation, and the user intentionally applies the force. It cannot be pushed down without adding. That is, when the user pushes down the stem 63 to the depth shown in FIG. 6b, the user can recognize that the stem 63 is pushed down to a certain depth by the resistance applied to the two springs.

  As shown in FIG. 6 b, the residual gas discharge mechanism 54 includes a protection member 76 and a penetrating member 77. The protective member 76 includes a hollow, flat columnar accommodating portion 78 and a cylindrical mounting portion 79 that extends upward from the center of the upper surface thereof and is mounted on the outer peripheral surface 69a of the engaging portion 69 of the housing. It is. Engagement holes 80 are formed in the bottom surface 78a of the housing portion, and windows 81 are formed in four directions on the outer peripheral wall 78b of the housing portion. Further, the protective member 76 is formed with notches 82 in the axial direction from the mounting portion 79 to the accommodating portion 78 in four directions in the same direction as the window 81.

  The penetrating member 77 includes a columnar pressure receiving portion 84, four legs 85 extending from the lower end thereof, and a fastener 86 formed between the four legs, and includes a tip 83 (perforated portion) of the leg 85. ) Is sharply cut to form needle-like protrusions (sharp protrusions). Further, the legs 85 are formed to be openable and closable in four directions.

Thus, the residual gas discharge mechanism 54 is assembled by inserting the penetrating member 77 with the legs 85 closed from the upper end opening of the mounting portion 79 of the protective member 76. At this time, the legs 85 are still supported by the bottom surface 78a of the housing portion, and the tip 83 is not exposed from the housing portion 78 (first state). In this state, the protection member 76 is coupled to the engaging portion 69 of the housing (see FIG. 6a).
Next, the stem 63 is pushed down to the depth shown in FIG. 6b described above (normal discharge operation). Thereby, the valve rubber 66 is bent and the stem hole is opened. That is, the inner bag 52 and the atmosphere communicate with each other through the valve communication hole 70 and the stem hole of the stem 63 (see FIG. 6b).

  Further, the stem 63 is pushed down deeply with an operation force larger than that of a normal discharge operation. Thereby, the pressing portion 75 at the lower end of the stem comes into contact with the upper end surface of the pressure receiving portion of the penetrating member 77 and pushes down the penetrating member 77. Thereby, the tip 83 of the leg 85 of the penetrating member slides on the bottom surface 78a of the housing portion and protrudes from the window 81, and the residual gas discharge mechanism 54 is in the second state (see FIG. 6c). At this time, the fastener 86 of the penetrating member is maintained in a state of being engaged with the engaging hole 80 of the protective member, and the penetrating member 77 does not rise upward even if the pressing of the stem 63 is stopped.

  Next, in FIG. 7, the filling method of this double aerosol product 50 is demonstrated. In this double aerosol product, first, the inner bag 52 is inserted into the container body 51, and the inner space (stock solution chamber) of the inner bag 52 is filled with the stock solution A. Next, a valve with a first state residual gas discharge mechanism 54 attached is inserted into the opening of the inner bag to make the stock solution chamber airtight and pressurize the gap space (gas chamber) between the inner bag 52 and the container body 51. The agent B is filled by the undercup filling method, and the valve 53 is crimped and fixed to the container body 51 (see FIG. 7a). Then, the residual gas discharge mechanism is changed from the first state to the second state by pushing down the stem 63 of the valve to a predetermined depth or more (see FIG. 7b).

  The double aerosol product 50 manufactured in this way can discharge the stock solution A in an arbitrary direction by attaching the injection member 41 and the like to the valve as in the double aerosol product 10 of FIG. 7c). Then, after the residual gas discharge mechanism 54 is set to the second state, the pressure agent discharge process is performed almost simultaneously with the disappearance of the stock solution A while performing a normal discharge operation (see FIG. 7d). This double aerosol product 50 is safe for the operator in the manufacturing stage, and can protect the tip 83 (perforated portion) of the penetrating member, similarly to the double aerosol product 10 of FIG.

  Further, as shown in FIG. 7e, the pressure agent B is filled in the gap space (gas chamber) between the inner bag 52 and the container main body 51 by the under cup filling method without filling the inner bag 52 with the stock solution. The container body may be crimped (step I), the air in the inner space of the inner bag 52 may be discharged (step II), and the stock solution A may be filled from the stem 63 (step III). This filling method can discharge almost the entire amount of air in the inner space of the inner bag 52, and is therefore preferable when using a stock solution having high reactivity with oxygen, such as being easily oxidized and easily decomposed. In this case, after the residual gas discharge mechanism 54 is filled with the stock solution A, that is, after step III, the stem 63 of the valve 53 is pushed down to be in the second state.

  As long as this double aerosol product 50 is manufactured, the residual gas discharge mechanism 54 may be changed from the first state to the second state at any stage. In other words, the manufacturer ships the double aerosol product in the state of the first state, and after the user has used up the product (stock solution), he / she wants to use the stock solution in the second state, so that the stock solution can be used more efficiently. Is possible.

  Also, the inner bag type double aerosol product, when the stock solution is discharged to some extent and the inner bag shrinks, the bottom of the inner bag rises somewhat, and the inner bag is suspended by the crimp near the upper end of the inner bag It is held in the state. For this reason, if the user accidentally drops the product so that it is turned sideways during use, the inner bag is broken, and the inner bag may be penetrated by the penetrating member. However, when the residual gas discharge mechanism 54 is brought into the second state at the user's intention, there is no such fear.

A double aerosol product 90 shown in FIG. 8 is a double aerosol product in which the partition wall is a piston, and includes a piston 92 disposed in the container body 91 so as to be movable up and down, and a penetrating member 93 pushed down by the lower end of the stem. And a residual gas discharge mechanism 94. In this embodiment, the valve housing 99 of the double aerosol container also serves as a protective member for the residual gas discharge mechanism 94.
The container main body 91 is substantially the same as the container main body 11 of the aerosol product 10 of FIG. 1, and is a three-piece can provided with a gas filling valve 95 at the bottom. A piston 92 is disposed in the container body 91 so as to be movable up and down. A space above the piston 92 is a stock solution chamber, and a space below the piston 92 is a gas chamber. That is, when the stock solution A in the stock solution chamber is discharged, the piston 92 is pushed by the pressurizing agent B and moves upward (valve side).

  The piston 92 has a mountain shape formed from a synthetic resin or the like, and the skirt 97 slides while maintaining airtightness with the inner surface of the container main body 91. A recess 98 is formed in the center of the top surface. The concave portion 98 is a portion that finally comes into contact with the outer bottom portion of the valve housing 99 and is penetrated by a penetrating member 93 of a residual gas discharge mechanism 94 described later when the stock solution is discharged and the piston 92 rises. . The concave portion 98 may be thinner than other portions in order to facilitate penetration.

As shown in FIG. 9A, the housing 99 of the valve 96 communicates with a window 100 for projecting a penetrating member 93 formed at the center of the inner bottom surface 96a and a stock solution chamber filled with a stock solution A formed at the lower side. A communication hole 101 and an engagement protrusion 102 that engages with a protrusion 106 of a stem, which will be described later, formed on the inner side of the side surface are provided. Furthermore, a stepped portion 103 is formed in the window 100.
The stem 104 of the valve 96 includes a cylindrical stem main body 105, a protrusion 106 formed on the outer periphery of the middle portion of the side surface, and a columnar pressing portion 107 formed on the lower end. The other configuration of the valve is substantially the same as the valve 13 of the aerosol product of FIG.

  The residual gas discharge mechanism 94 includes a rod-like penetrating member 93 (see FIG. 9c) in which one end 108 (perforated portion) is sharply cut, and a pressure receiving portion 109 that expands radially outward is provided on the upper portion of the penetrating member. Is formed. In this embodiment, the housing serves as a protective member for the residual gas discharge mechanism.

This penetrating member 93 is inserted into the housing, and is arranged so that its tip 108 is located in the window 100 of the housing. The penetrating member 93 is designed such that the tip 108 of the penetrating member protrudes from the window 100 when the pressure receiving portion 109 of the penetrating member is fitted into the stepped portion 103 of the housing 99.
Further, when the penetrating member 93 is inserted, as shown in FIG. 9a, there is no gap between the distal end 108 of the penetrating member and the diameter of the window, it is stopped at the stepped portion 103, and no pressure is applied to the pushing portion of the stem. It does not protrude from 100. However, a gap may be provided in the diameter of the tip and the window so that the tip 108 of the penetrating member protrudes from the window 100 without applying pressure by the pressing portion of the stem. Even in this case, even if an object hits the tip of the penetrating member, it is accommodated in the housing without resistance, so there is no major problem. However, it is preferable to design as shown in FIG.

  Further, when the stem 104 is inserted into the housing, the protrusion 106 is disposed above the engaging protrusion 102 formed at the center of the side surface of the housing. And when performing normal discharge, the stem 104 is pushed down to such an extent that the protrusion 106 gets over the engaging protrusion 102 and does not engage. Then, the stem 104 is pushed down downward, and when the projection 106 gets over the engagement projection 102 and engages, the stem pressing portion 107 comes into contact with the upper end surface of the pressure receiving portion of the penetrating member and is pushed down. . That is, the stem 104 can move up and down before the stem projection 106 and the housing engagement projection 102 are engaged with each other, and after the engagement, the stem 104 is fixed at the depressed position.

  Therefore, before engaging the protrusion 106 of the stem and the engaging protrusion 102 of the housing, even if the piston rises, the recess cannot be broken through (first state). And after engaging, when the pressing portion 107 at the lower end of the stem is pressed down the pressure receiving portion 109 of the penetrating member, that is, in a state where the tip 108 protrudes from the window 100, and when the piston moves upward, Break through the recess of the piston (second state).

  Next, a method for filling the double aerosol product 90 will be described. First, as in the double aerosol product of FIG. 1, the valve 96 is fixed to the bead portion of the container main body 91 without filling the stock solution and the pressurizing agent (see FIG. 10a). In addition, when manufacturing a container main body, specifically, a piston is inserted before fixing a bottom part or a metal eye part to a trunk | drum by double winding. Next, the pressurizing agent B is filled from the gas filling valve 95 (see FIG. 10b). At this time, the piston moves somewhat upward. Next, the stem 104 is normally pushed down to discharge the air in the stock solution chamber (see FIG. 10c). At this time, the piston 92 moves upward until it comes into contact with the outer bottom of the housing 99, but the piston 92 is not broken because the residual gas discharge mechanism 94 is in the first state. Thereafter, when the stem 104 is normally pushed down and the stock solution A is pressure-filled from the stem 104, the piston moves downward against the pressure of the pressurizing agent (see FIG. 10d).

  The double aerosol product 90 is manufactured by attaching the injection member 41 as in the other embodiments. In this double aerosol product 90, when the stem 104 is pushed down strongly and the residual gas discharge mechanism 94 is in the second state, not only the penetrating means protrudes from the housing but also the stem is fixed, and the valve is always open (see FIG. 10e). Therefore, the residual gas discharge mechanism 94 is set to the second state after completely using the stock solution or when the user discards the product.

The penetrating member 93a shown in FIG. 9d is a cylindrical member having a tubular gas discharge passage 87 therein and a gas discharge hole 88 formed in a side surface of the pressure receiving portion and communicating with the discharge passage. The other configuration is substantially the same as the penetrating member 93 of FIG. 9c. Because of this structure, when the piston is broken by the penetrating member 93, the gas enters the valve through the penetrating member discharge passage 87 and the gas discharge hole 88, and is released from the stem to the atmosphere to discharge the pressurizing agent. Becomes easier.
The penetrating member 93b shown in FIG. 9e has a cutter blade attached as the tip 89, and the other configuration is substantially the same as the penetrating member 93 of FIG. 9c. As described above, the present invention is not limited to the rod shape (needle shape) as the perforated portion at the tip, and may be any as long as it can break the piston.

A double aerosol product 110 shown in FIG. 11 includes a container body 111 made of synthetic resin such as polyethylene terephthalate, an inner bag 112 made of aluminum foil, and a cover cap 113c for fixing the housing 113a to the mouth of the container body. A valve 113 provided, and a residual gas discharge mechanism 114 capable of changing from the first state to the second state by pressure filling the stock solution from the stem 113b are provided.
The container body 111 is an integrally molded product by blow molding inflated by blowing hot air from a parison. The container body has a bottle shape, and is fixed to the outer periphery of the mouth by clinching the outer periphery of the lower end of the cup-shaped cover cap 113c, and is provided with a gas filling valve 111a at the bottom.
The inner bag 112 includes a cylindrical engagement member 115 and a foldable aluminum foil pouch 116 bonded to the outer peripheral surface of the engagement member.

  As shown in FIG. 12A, the residual gas discharge mechanism 114 includes a bottomed cylindrical protective member 117 having a flange portion 119 at the upper end opening, and a penetrating member 118 accommodated in the protective member. In the protection member 117, a window 120 is formed in all directions at the lower part of a cylindrical body portion, and a communication hole 125 communicating with the inside of the pouch is provided above the window. In addition, a protrusion 121 protruding inward is formed on the inner surface near the lower end of the communication hole 125. The penetrating member 118 includes a cylindrical main body 122 and four legs 123 that can be bent from the lower end of the main body. The upper end surface of the main body 122 is formed in a flange shape, and the outer peripheral edge is a protective member. The pressure receiving portion 124 slides on the inner surface of the body portion.

  In this residual gas discharge mechanism 114, the upper inner peripheral surface of the trunk portion and the outer peripheral surface of the engaging portion of the housing are fitted, and the upper outer peripheral surface of the trunk portion is the inner peripheral surface of the engagement member 115 of the inner bag. Is fitted. Alternatively, the engaging member 115 may be eliminated, and the pouch may be directly attached to the outer peripheral surface of the trunk portion.

  Since the residual gas discharge mechanism 114 is configured in this way, the penetrating member 118 is housed inside the trunk of the protective member 117 (first state). Then, by filling the stock solution from the stem with pressure, the leg 123 of the penetrating member 118 is bent, and the tip of the bent portion is pushed out from the window 120 of the protective member (second state). At this time, the outer peripheral edge of the pressure receiving portion 124 of the penetrating member 118 exceeds the protrusion 121 of the protective member 117, and the residual gas discharge mechanism 114 shifts to the second state, thereby preventing the penetrating member 118 from returning.

  In the filling method of the double aerosol product 110, the pouch 116 is inserted into the container body in a folded state, the valve is fixed to the container body, and the pressurizing agent is filled from the gas filling valve 111a at the bottom. Next, the entire amount of air in the pouch (stock solution chamber) is discharged, the stock solution is pressure-filled from the stem, and the residual gas discharge mechanism is shifted to the second state (FIG. 12b). Further, similarly to the double aerosol product 50 in FIG. 5, the pressure filling agent B is filled by under cup filling without the gas filling valve, the valve 113 is fixed, and the stock solution A is filled from the valve 113 into the inner bag 112. Further, the stock solution A may be filled in the inner bag 112 before the valve 113 is fixed, and then the pressurizing agent B may be filled by filling the undercup, and the valve may be fixed.

  A double aerosol product 130 shown in FIG. 13 covers a container main body 131, an inner bag 132 inserted into the container main body, a valve 133 for closing the container main body and the opening of the inner bag, and an upper surface of the valve. And a cover cap 134 fixed to the container main body, and a residual gas discharge device 135 attached to the lower end of the valve.

  The container main body 131 is formed into a low-cylinder shape from a metal such as aluminum or tinplate, and is formed at a cylindrical body portion 136, a bottom portion 137 formed at the lower end of the body portion, and an upper end of the body portion. It comprises a tapered shoulder 138 and a neck 139 formed at the upper end of the shoulder, and an annular recess 140 is formed on the outer peripheral surface of the neck. A gas filling valve 137a is provided at the bottom of the container body. Furthermore, the upper end (neck upper end) of the container body 131 is not formed with a curled portion, and has a cylindrical shape facing straight upward.

  The valve 133 includes a cylindrical housing holding portion 142 having a top bottom for holding the housing, and a ring-shaped peripheral wall that is fitted into the neck portion of the container body. The mounting cup 141 is molded using a synthetic resin such as polyacetal or nylon. It consists of the part 143 and the connection bottom part 144 which connects a housing holding part and a surrounding wall part by a lower end. A central opening 145 through which the stem passes is formed at the upper bottom of the housing holding portion, a flange 146 protruding outward is formed at the upper end of the peripheral wall portion 143, and the lower end of the peripheral wall portion 143 is further formed. Is formed with a stepped portion 147 that engages with the annular recess 140 of the container body via the inner bag. An annular groove 148 is formed by the outer surface of the housing holding portion and the inner surface of the peripheral wall portion. Other configurations such as a housing and a stem are substantially the same as those of the valve 13 of FIG.

  The cover cap 134 is formed by molding a thin metal plate such as aluminum or tinplate into a bottomed cylindrical shape, and an opening 149 through which the stem is passed is formed at the center of the upper surface. And the outer periphery of this lower end 134a is crimped and fixed to the annular recess 140 of the container body.

  Since the valve 133 is formed in this way, the flange 146 of the mounting cup is held by the upper end of the container body via the seal material 150, and the lower end 134a of the cover cap 134 is crimped to the container body from above. Assembled.

  The inner bag 132 is formed with a bellows 151 at the neck, is formed in a cylindrical shape without a flange at the opening, and the other configuration is substantially the same as the inner bag 12 of FIG.

As shown in FIG. 14A, the residual gas discharge device 135 includes a penetrating member 152 and a protective member 153 that accommodates the penetrating member so as to be movable up and down.
As shown in FIG. 14b, the penetrating member 152 includes a cylindrical pressure receiving member 156 having a reduced diameter of the lower portion 156a and a perforated member 157 connected to the lower end thereof. As shown in FIG. 14c, the piercing member 157 includes a cylindrical connecting portion 159 and four legs 160 extending from the lower end thereof, and the tips of the legs are sharply cut. In addition, a hinge portion 161 is formed on the upper portion of each leg 160 of the perforated member, thereby facilitating opening and closing of the leg 160.
Because of this configuration, the penetrating member 152 is connected by fitting the lower portion 156a of the pressure receiving member into the connecting portion 159 of the perforating member.

  As shown in FIG. 14d, the protection member 153 includes a cylindrical mounting member 162 and a cylindrical housing member 164 provided with a tapered portion 163 that expands downward. The accommodation member 164 has a communication hole 165 formed at the bottom thereof for communicating the inner bag and the valve, and windows 166 for exposing the legs of the penetrating member are formed in four directions on the outer peripheral wall 166a.

The residual gas discharge mechanism 135 formed in this way is inserted into the protection member 153 in a state where the leg 160 of the penetrating member is folded (a state where the leg is not spread). Next, the leg 160 of the penetrating member is slightly opened and supported on the bottom surface of the housing main body so that the tip is not exposed from the window of the housing. Further, the penetrating member is turned so that the tip of the penetrating member is located at the window 116 and is put into a predetermined position. This residual gas discharge mechanism 135 is in the first state and is mounted on the engaging portion of the housing (see FIGS. 14a and 14e).
In this state, by pressure-filling a fluid such as a stock solution from the valve, the pressure receiving member 156 of the penetrating member receives pressure downward, and the tip of the leg 160 of the piercing member is pushed out from the window 166 (see FIG. 14f).

  FIG. 15 shows a method for manufacturing the double aerosol product 130. First, the inner bag 132 is inserted into the container body 131, the valve 133 with the residual gas discharge mechanism 135 in the first state attached to the lower end is inserted into the opening of the container body, and the lower end 134a of the cover cap is crimped and fixed. (See FIG. 15a). Next, the pressurizing agent B is filled from the gas filling valve 137a at the bottom 137 of the container body (see FIG. 15b). Thereafter, the stem 31 is pushed down to discharge the air in the inner bag 132 to the outside (see FIG. 15c). At this time, since the penetrating member 152 of the residual gas discharge mechanism is accommodated in the protective member 153, the inner bag 132 is not torn. Finally, the stock solution A is pressure-filled from the stem with the stem 31 depressed (see FIG. 15d). Thereby, the tip of the leg 160 of the penetrating member is pushed out from the window 166 of the protective member, and the residual gas discharge mechanism 135 is brought into the second state, and the double aerosol product 130 is completed.

  The double aerosol product 130 thus manufactured is used with the injection member 41 attached thereto. When the double aerosol product 130 is used and the volume of the inner bag 132 is reduced to a predetermined size, the inner bag 132 is broken by the residual gas discharge mechanism 135 in the second state. That is, at the moment when the product life as the double aerosol product 130 ends, the inner bag is broken and the pressure agent B flows into the inner bag 132 and is discharged from the injection member 41 through the valve.

Further, as the penetrating member of the double aerosol product 130, a pressure receiving member 168 as shown in FIG. 14g may be used. This has a spiral groove 167 formed on the upper surface so as to flow downward.
Such a pressure receiving member 168 is inserted so that the tip of the leg 160 of the penetrating member abuts the outer peripheral wall 166a of the protective member when assembling the residual gas discharge mechanism 135 (see FIG. 15h). When the stock solution is pressure-filled, the penetrating member is pushed downward while rotating in the direction of the spiral groove 167 (left direction in the figure). Therefore, the leg 160 of the penetrating member is pushed out so as to engage with the window. By doing in this way, the assembly of the residual gas discharge mechanism 153 becomes easy.

  Further, this residual gas discharge mechanism 135 may be used in the double aerosol product 50 of FIG. 5 so that the pressure receiving member receives pressure by the stem. Further, in this case, an engagement groove may be formed at the upper end of the pressure receiving member so as to engage with the stem. Thereby, by rotating the stem, the penetrating member inserted so that the tip of the leg of the penetrating member abuts on the outer peripheral wall 166a can be rotated and protruded from the window.

  FIG. 16a shows a valve 170 that also serves as a penetrating member. This valve 170 is used for a piston type double aerosol product as shown in FIG. The valve 170 includes a housing having a cylindrical perforated portion 171 protruding downward at the lower end, and an internal passage 172 communicates the valve 170 with the stock solution chamber.

  By fitting the perforated portion 171 of the valve 170 so as to be covered with a bottomed cylindrical protective member 173, the first state of the residual gas discharge mechanism is obtained. At this time, the protective member 173 includes an opening (gas communication hole) 173b smaller than the cross-sectional area of the internal passage 172 of the perforated part in the bottom 173a. Therefore, it does not prevent the air in the stock solution chamber from being discharged outside through the valve.

  Thus, the double aerosol product including the valve 170 is filled with the pressure agent by fixing the valve 170 to the bead portion of the container body in the same manner as in FIG. Open and discharge the stock chamber air from the stem. When the stock solution is pressure-filled from the stem, the bottom portion 173a having an opening 173b smaller than the internal passage 172 of the perforated portion 171 serves as a pressure receiving portion and is pushed downward by receiving the stock solution filling pressure, so that the protective member 173 is pushed into the stock solution chamber. fall into. Thereby, as shown in FIG. 16B, the perforated part 171 is exposed (second state).

  Further, as shown in FIG. 16c, a tubular penetrating member 175 having a sharp tip is inserted into the internal passage 172 of the engaging portion 174 of the housing, and a bottomed cylindrical protective member 173 is inserted into the outer peripheral surface 174a of the engaging portion. The opening may be mounted so as to be removable. An opening 173b smaller than the cross-sectional area of the internal passage 172 (in this case, the discharge passage 87 of the penetrating member) is also provided in the bottom portion 173a of the protective member, and the bottom portion 173a becomes a pressure receiving portion and receives the filling pressure of the stock solution from the housing. It falls off and falls into the stock solution chamber. Thereby, as shown in FIG. 16d, the perforated part 171 is exposed (second state).

  FIG. 17a shows a valve 180 equipped with a residual gas discharge mechanism that houses a protective member mounted on a penetrating member. The valve 180 is used for a double aerosol product using an inner bag or a pouch as a partition wall. This valve 180 has a penetrating member 181 mounted on the outer peripheral surface 183a of the engaging portion 183 of the housing. The penetrating member 181 includes a cylindrical mounting portion 184 and four sharp protrusions 185 extending obliquely downward from the lower end of the mounting portion. The protective member 182 has a bottomed cylindrical shape, and the inner peripheral wall 187 of the cylindrical portion 186 engages with the sharp protrusion 185 and is mounted in a state where it can be detached from the penetrating member. An opening 189 smaller than the cross-sectional area of the internal passage 183b is also provided in the bottom portion 188 of the protection member. When the bottom portion 188 serves as a pressure receiving portion and receives the filling pressure of the stock solution, the protective member 182 is detached from the penetrating member 181 and falls into the stock solution chamber. As a result, the sharp protrusion 185 is exposed as shown in FIG. 17b (second state).

  The valve 190 in FIG. 18a is provided with a residual gas discharge mechanism that houses the protective member 191 mounted on the penetrating member 192, and drops the protective member 191 into the stock solution chamber by operating the stem 193 of the valve. It is. The valve 190 is substantially the same as the valve 53 shown in FIG. 6a, and the stem push-down resistance differs between the normal discharge operation and the operation of changing the residual gas discharge mechanism from the first state to the second state. .

  The penetrating member 192 includes a cylindrical mounting portion 194 and four sharp protrusions 195 extending obliquely downward from the lower end of the mounting portion. The protective member 191 has a bottomed cylindrical shape, and a central column inserted into the inner peripheral wall 197 of the cylindrical portion 196 that engages the sharp protrusion 195 of the penetrating member and the internal passage 199 of the engaging portion 198 of the valve housing. 200, and the upper end of the central column 200 is a pressure receiving portion.

  Since the valve 190 is configured in this manner, the lower end of the stem presses the upper end of the central column 200 of the protective member by pushing down the stem 193 from the state of the normal discharge operation (see FIG. 18b) (see FIG. 18c). Then, the protective member 191 is pushed down, and the protective member 191 is dropped into the stock solution chamber. As a result, the sharp protrusion 195 of the penetrating member is exposed, and the inner bag reduced to a specific volume can be broken.

  As shown in FIG. 16 to FIG. 18, the residual gas discharge mechanism of the present invention includes a mechanism that moves the protective member by operating to change from the first state to the second state.

It is a sectional side view showing one embodiment of the double aerosol product of the present invention. 2a is a sectional side view showing a first state of the residual gas discharge mechanism of the double aerosol product of FIG. 1, and FIG. 2b is a sectional side view showing the second state. 3a and 3b are a sectional side view and a perspective view, respectively, showing a protective member of the double aerosol product of FIG. 4a to 4d are process diagrams showing a method for filling the double aerosol product of FIG. 1, and FIG. 4e is a cross-sectional side view showing the discharged state. It is a cross-sectional side view which shows other embodiment of the double aerosol product of this invention. 6a and 6b are cross-sectional side views showing a first state of the residual gas discharge mechanism of the double aerosol product of FIG. 5, and FIG. 6c is a cross-sectional side view showing the second state. 7a and 7b are process diagrams showing a method for filling the double aerosol product of FIG. 5, FIG. 7c is a sectional side view showing a normal discharge state, and FIG. 7d is a sectional side view showing a discharge state. FIG. 7e is a process diagram illustrating another method of filling the dual aerosol product of FIG. The form status of the dual aerosol products outside the scope of the present invention is a cross-sectional side view of. 9a is a cross-sectional side view showing a first state of the residual gas discharge mechanism of the dual aerosol product outside the scope of the present invention of FIG. 8, and FIG. 9b is a cross-sectional side view showing the second state thereof. 9e is a perspective view showing a penetrating member that can be used in the residual gas discharge mechanism of FIG. 9a. FIGS. 10a to 10d are process diagrams showing a method of filling a double aerosol product outside the scope of the present invention in FIG. 8, and FIG. 10e is a sectional side view showing a discharged state. It is a cross-sectional side view which shows other embodiment of the double aerosol product of this invention. 12a is a sectional side view showing a first state of the residual gas discharge mechanism of the double aerosol product of FIG. 11, and FIG. 12b is a sectional side view showing the second state. It is a cross-sectional side view which shows other embodiment of the double aerosol product of this invention. 14a is a sectional side view showing the residual gas discharge mechanism, FIG. 14b is a side view showing the penetrating member, FIG. 14c is a top view showing a perforating member of the penetrating member, and FIG. FIG. 14e and FIG. 14f are top views showing a first state and a second state of the residual gas discharge mechanism, respectively, and FIG. 14g shows a pressure receiving member used for the residual gas discharge mechanism. FIG. 14h is a top view showing a first state of the residual gas discharge mechanism using the pressure receiving member. 15a to 15d are process diagrams showing a method of filling the double aerosol product of FIG. 13, and FIG. 15e is a sectional side view showing a discharged state. 16a and 16b are sectional side views showing still another embodiment of the residual gas discharge mechanism of the present invention, and FIGS. 16c and 16d are sectional side views of still another embodiment of the residual gas discharge mechanism of the present invention. FIG. 17a and 17b are cross-sectional side views showing still another embodiment of the residual gas discharge mechanism of the present invention. 18a and 18b are cross-sectional side views showing the first state of the residual gas discharge mechanism of the double aerosol product of the present invention, and FIG. 18c is a cross-sectional side view showing the second state.

Explanation of symbols

A Stock Solution B Pressurizing Agent 10 Double Aerosol Product 11 Container Body 12 Inner Bag 13 Aerosol Valve 14 Residual Gas Discharge Mechanism 16 Body 17 Eyepiece 18 Bottom 19 Beads 20 Gas Filling Valve 21 Body 22 Shoulder 23 Neck 24 flange portion 25 bottom portion 26 pinch-off portion 27 gasket 28 mounting cup 29 housing 30 stem hole 31 stem 32 spring 33 stem rubber 34 engaging portion 34a outer peripheral surface 34b internal passage 35 protective member 36 penetrating member 37 mounting portion 38 accommodating portion 38a bottom surface 38b Side 39 Partition plate 39a Insertion hole 40 Communication hole 41 Injection member 42 Storage part main body 43 Connection part 44 Center hole 45 Window 46 Notch 47 Leg 48 Pressure receiving part 49 Tip (perforation part)
50 Double Aerosol Product 51 Container Body 52 Inner Bag 53 Valve 54 Residual Gas Discharge Mechanism 56 Bottom 57 Body 58 Shoulder 59 Bead Part 61 Mounting Cup 62 Housing 63 Stem 64 First Spring 65 Second Spring 66 Stem Rubber 67 Internal Passage 68 Housing body 69 Engaging portion 69a Outer peripheral surface 70 Communication hole 71 Step portion 72 Stem body 73 First step portion 74 Second step portion 75 Push portion 76 Protection member 77 Penetration member 78 Housing portion 78a Bottom surface of housing portion 78b Outer peripheral wall 79 Mounting portion 80 Engagement hole 81 Window 82 Notch 83 Tip 84 Pressure receiving portion 85 Leg 86 Fastener 87 Discharge passage 88 Gas discharge hole 89 Tip 90 Double aerosol product 91 Container body 92 Piston 93 Penetration member 93a Penetration member 93b Penetration member 94 Residual gas discharger 95 Gas filling valve 96 Valve 96a Inner bottom surface 97 Bottom portion 98 Recessed portion 99 Housing 100 Window 101 Communication hole 102 Engagement projection 103 Step portion 104 Stem 105 Stem body 106 Protrusion 107 Push portion 108 End of penetrating member 109 Pressure receiving portion 110 Two Heavy aerosol product 111 Container body 111a Gas filling valve 112 Inner bag 113 Valve 113a Housing 113b Stem 113c Cover cap 114 Residual gas discharge mechanism 115 Engaging member 116 Pouch 117 Protection member 118 Penetration member 119 Flange part 120 Window 121 Projection 122 Main body 123 Leg 124 Pressure receiving portion 125 Communication hole 130 Double aerosol product 131 Container body 132 Inner bag 133 Valve 134 Cover cap 134a Lower end of cover cap 135 Gas exhaust mechanism 136 Body 137 Bottom 137a Gas filling valve 138 Shoulder 139 Neck 140 Annular recess 141 Mounting cup 142 Housing holding part 143 Peripheral wall 144 Connection bottom 145 Central opening 146 Flange 147 Step part 148 Annular groove 150 149 Sealing material 151 Bellows 152 Penetrating member 153 Protection member 156 Pressure receiving member 156a Lower portion of pressure receiving member 157 Punching member 159 Connection portion 160 Leg 161 Hinge portion 162 Mounting member 163 Taper portion 164 Housing member 165 Communication hole 166 Window 166a Outer wall groove 16 Pressure receiving member 170 Valve 171 Perforated portion 172 Internal passage 173 Protective member 173a Bottom portion 173b Opening 174 Engaging portion 174a Outer peripheral surface 175 Penetration member
180 valves
181 penetrating member 182 protective member 183 engaging portion 183a outer peripheral surface 183b internal passage 184 mounting portion 185 sharp projection 186 cylinder portion 187 inner peripheral wall 188 bottom portion 189 opening 190 valve 191 protective member 192 penetrating member 193 stem 194 sharp projection portion 19 Part 197 Inner peripheral wall 198 Engagement part of housing 199 Internal passage 200 Central pillar

Claims (17)

A container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber filled with the stock solution in the container body, and a pressurizing agent pressurizing the stock solution chamber When the volume of the stock solution chamber reaches a predetermined size, provided in a double aerosol product that is partitioned into a gas chamber filled with gas and has a partition wall that reduces the volume of the stock solution chamber as the stock solution decreases A residual gas discharge mechanism that communicates the stock solution chamber and the gas chamber through the partition wall,
A penetrating member having a perforated part that breaks the partition wall, and a protective member that can cover the perforated part,
The penetrating member has a pressure receiving portion and is accommodated in the protective member so as to be movable and / or deformable.
The protective member has a housing portion for housing the perforated portion, and includes a bottom plate on which the perforated portion slides at the bottom of the housing portion,
A first state in which the perforated part is housed in a protective member; and a second state in which the perforated part is exposed from the protective member;
Is inserted into the container body in the first state, after attaching the aerosol valve in the container body can be a second state by applying pressure to the pressure receiving portion of the aerosol valve and operation, dual aerosol Residual gas discharge mechanism for products. A container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber filled with the stock solution in the container body, and a pressurizing agent pressurizing the stock solution chamber When the volume of the stock solution chamber reaches a predetermined size, provided in a double aerosol product that is partitioned into a gas chamber filled with gas and has a partition wall that reduces the volume of the stock solution chamber as the stock solution decreases A residual gas discharge mechanism that communicates the stock solution chamber and the gas chamber through the partition wall,
A penetrating member having a perforated part that breaks the partition wall, and a protective member that can cover the perforated part,
The protective member has a pressure receiving portion and is attached to the penetrating member or the valve housing in a detachable state,
A first state in which the perforated part is housed in a protective member; and a second state in which the perforated part is exposed from the protective member;
Wherein is inserted into the container body in a first state, after attaching the aerosol valve in the container body can be a second state by applying pressure to the pressure receiving portion of the aerosol valve by operation,
Residual gas discharge mechanism for double aerosol products. The residual gas discharge mechanism according to claim 2 , wherein the protective member has a bottomed cylindrical shape and includes a gas communication hole in a bottom portion. A container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber filled with the stock solution in the container body, and a pressurizing agent pressurizing the stock solution chamber When the volume of the stock solution chamber reaches a predetermined size, provided in a double aerosol product that is partitioned into a gas chamber filled with gas and has a partition wall that reduces the volume of the stock solution chamber as the stock solution decreases A residual gas discharge mechanism that communicates the stock solution chamber and the gas chamber through the partition wall,
A penetrating member having a perforated part that breaks the partition wall, and a protective member that can cover the perforated part,
The penetrating member has a pressure receiving portion and is accommodated in the protective member so as to be movable and / or deformable.
A first state in which the perforated part is housed in a protective member; and a second state in which the perforated part is exposed from the protective member;
After being inserted into the container main body in the first state and attaching the aerosol valve to the container main body, the second state can be obtained by applying pressure to the pressure receiving part via the aerosol valve,
The residual gas discharge mechanism for a double aerosol product, wherein the pressure on the penetrating member is a filling pressure of the stock solution . The residual gas discharge mechanism according to claim 4 , wherein the penetrating member includes a pressure receiving portion provided in an upper portion and a perforated portion provided in a lower portion. The residual gas discharge mechanism according to claim 5, wherein the perforated part includes a plurality of sharp protrusions, and when the pressure is applied to the pressure receiving part, the sharp protrusions are pushed out so as to expand in an annular shape. The residual gas discharge mechanism according to claim 5 , wherein the perforated part is a sharp protrusion extending downward. The residual gas discharge mechanism according to claim 4 , wherein the protective member has a housing portion that houses the perforated portion, and includes a bottom plate on which the perforated portion slides on a bottom portion of the housing portion. The protective member is residual gas discharge mechanism according to claim 4, wherein Ru housing der aerosol valve. A container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber filled with the stock solution in the container body, and a pressurizing agent pressurizing the stock solution chamber When the volume of the stock solution chamber reaches a predetermined size, provided in a double aerosol product that is partitioned into a gas chamber filled with gas and has a partition wall that reduces the volume of the stock solution chamber as the stock solution decreases A residual gas discharge mechanism that communicates the stock solution chamber and the gas chamber through the partition wall,
It comprises a penetrating member having a perforated part that breaks the partition, and a cylindrical protective member that houses the penetrating member ,
The penetrating member consists of a cylindrical main body and a leg that can be bent and extended from the lower end of the main body, and the upper end of the main body serves as a pressure receiving portion that slides with the inner surface of the protective member,
The protective member has a window formed on a side surface and a communication hole formed above the window;
A first state in which the perforated portion is housed in a protective member; and a second state in which the leg portion is bent and a tip of the bent portion is exposed from a window of the protective member;
Is inserted into the container body in the first state, after attaching the aerosol valve in the container body can be a result the second state to the applying pressure to the pressure receiving portion of the aerosol valve and operation, dual aerosol Residual gas discharge mechanism for products. A protrusion engaging with the pressure receiving portion is provided on an inner surface between the communication hole of the protection member and the window;
The residual gas discharge mechanism according to claim 10. A container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber filled with the stock solution in the container body, and a pressurizing agent pressurizing the stock solution chamber When the volume of the stock solution chamber reaches a predetermined size, provided in a double aerosol product that is partitioned into a gas chamber filled with gas and has a partition wall that reduces the volume of the stock solution chamber as the stock solution decreases A residual gas discharge mechanism that communicates the stock solution chamber and the gas chamber through the partition wall,
A penetrating member having a perforated part that breaks the partition wall, and a cylindrical protective member that can cover the perforated part,
The penetrating member has a pressure receiving portion provided in the upper portion and a perforated portion provided in the lower portion, and is movably accommodated in the protective member,
The pressure receiving portion includes a flange-shaped outer periphery;
The protective member has a protrusion projecting inwardly on its inner surface;
The aerosol valve can perform a normal discharge operation to push down the stem, and an operation to apply pressure to the pressure receiving portion so that the outer peripheral edge of the pressure receiving portion exceeds the protrusion and the stem can be pushed deeper than the normal discharge operation. Yes,
A first state in which the perforated part is housed in a protective member; and a second state in which the perforated part is exposed from the protective member;
After being inserted into the container main body in the first state and attaching the aerosol valve to the container main body, the aerosol valve can be operated to apply the pressure to the pressure receiving portion to be in the second state.
Residual gas discharge mechanism for double aerosol products.
A container body, an aerosol valve attached to the opening of the container body, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber filled with the stock solution and a pressurizing agent pressurizing the stock solution chamber. is divided into a gas chamber to be filled, the partition wall to reduce the volume of the stock solution chamber according stock is reduced, and a residual gas discharge mechanism according to claim 1 to 13 wherein the double aerosol product. A container body provided with a gas filling valve at the bottom; an aerosol valve attached to the opening; a stock solution and a pressurizing agent filled in the container body; a stock solution chamber filled with the stock solution; A partition that partitions the stock solution chamber into a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and reduces the volume of the stock solution chamber as the stock solution decreases, and a residual gas discharge mechanism according to claim 1, 2, 10, or 12. A method for filling a double aerosol product comprising:
An aerosol valve is fixed to the opening of the container body, the gas chamber is filled with a pressure agent through a gas filling valve, the air in the stock solution chamber is discharged, the volume of the stock solution chamber is reduced, and the stock solution chamber is filled. A method for filling a double aerosol product, in which a stock solution is filled through an aerosol valve, and the residual pressure exhausting mechanism is changed from a first state to a second state by operating the aerosol valve to apply pressure to the pressure receiving part . A container body provided with a gas filling valve at the bottom; an aerosol valve attached to the opening; a stock solution and a pressurizing agent filled in the container body; a stock solution chamber filled with the stock solution; A double aerosol comprising: a partition wall that is divided into a gas chamber filled with a pressurizing agent that pressurizes the stock solution chamber, and that reduces the volume of the stock solution chamber as the stock solution decreases; and a residual gas discharge mechanism according to claim 4 A product filling method comprising:
An aerosol valve is fixed to the opening of the container body, the gas chamber is filled with a pressure agent through a gas filling valve, the air in the stock solution chamber is discharged, the volume of the stock solution chamber is reduced, and the stock solution chamber is filled. A method for filling a double aerosol product, in which a stock solution is filled via an aerosol valve, and at the same time, pressure is applied to the pressure receiving portion by the filling pressure of the stock solution to change the residual gas discharge mechanism from the first state to the second state. A bottomed cylindrical container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber in which the stock solution is filled, and a stock solution chamber are added. A partition comprising a gas chamber filled with a pressurizing agent to be compressed, a partition wall for reducing the volume of the stock solution chamber as the stock solution decreases, and a residual gas discharge mechanism according to claim 1, 2, 10 or 12. A method for filling heavy aerosol products,
The gas chamber is filled with a pressurizing agent and an aerosol valve is fixed to the opening of the container body, the air in the stock solution chamber is discharged to reduce the volume of the stock solution chamber, and the stock solution chamber is filled with the stock solution via the aerosol valve. Then, a method for filling a double aerosol product, in which the aerosol valve is operated to apply pressure to the pressure receiving portion to change the residual gas discharge mechanism from the first state to the second state. A bottomed cylindrical container body, an aerosol valve attached to the opening thereof, a stock solution and a pressurizing agent filled in the container body, a stock solution chamber in which the stock solution is filled, and a stock solution chamber are added. A method for filling a double aerosol product, comprising: a partition wall which is divided into a gas chamber filled with a pressurizing agent to be compressed, and which reduces the volume of the stock solution chamber as the stock solution decreases; and a residual gas discharge mechanism according to claim 4 Because
The gas chamber is filled with a pressurizing agent and an aerosol valve is fixed to the opening of the container body, the air in the stock solution chamber is discharged to reduce the volume of the stock solution chamber, and the stock solution chamber is filled with the stock solution via the aerosol valve. At the same time, a method for filling a double aerosol product, in which the residual gas discharge mechanism is changed from the first state to the second state by applying pressure to the pressure receiving portion by the filling pressure of the stock solution .

Images