JP6108672B2 - Valve assembly and discharge container using the same - Google Patents

Description

  The present invention relates to a valve assembly and a discharge container using the same. Specifically, the present invention relates to a valve assembly and a discharge container for a discharge product capable of discharging a plurality of contents simultaneously.

As a container for discharging a plurality of contents at the same time, a container in which two aerosol containers are connected is known. There is also known an aerosol container provided with a valve assembly having a valve mechanism in which two storage portions are provided in an external container and each content is discharged into an opening of the external container.
For example, Patent Document 1 discloses a valve assembly including two sets of valve mechanisms, a valve holder that accommodates the valve mechanisms, and a mountain cover that fixes the valve holder to an external container.

WO2011 / 67868

However, in the valve assembly of Patent Document 1, the metal mountain cover directly presses the stem rubber of the valve mechanism that is biased upward by the spring through the stem to fix the valve mechanism in the valve holder. Therefore, by operating the stem of the valve mechanism to move the stem rubber, the contents may leak from the stem rubber and come into contact with the metal mountain cover, and the mountain cover may be corroded. In particular, when the contents are acidic or alkaline, such as a two-component hair dye, there is a problem that the corrosiveness is increased and the safety of the entire aerosol container is lowered.
An object of the present invention is to provide a valve assembly in which corrosion of metal parts due to the contents does not easily occur and a discharge container using the same.

A valve assembly of the present invention is a valve assembly that is fixed to an opening of an external container and communicates a plurality of internal containers inserted into the external container and the outside air, and has a stem hole that communicates the internal container and the outside air. Provided with a stem, a stem rubber for sealing the stem hole, a spring for biasing the stem upward, a plurality of valve mechanisms for operating the stem hole to open and close by opening the stem, and an opening of the external container A synthetic resin valve holder that includes a plurality of valve housing portions that are inserted into the valve housing and house the valve mechanisms, covers the top surfaces of the plurality of stem rubbers of the plurality of valve mechanisms , and includes a plurality of valve housing portions. be connected to the synthetic resin cover one closing, a metal Mountain cover for fixing said valve holder to the outside container and the inner container wherein the valve housing section It has a cylindrical connecting member, and wherein the mountain cover is provided with a recess for pressing the cover to its top surface downwards.
In such a valve assembly, it is preferable that the cover includes a cover portion that holds the upper surface of the stem rubber from above, and the concave portion presses the cover portion of the cover downward.
It is preferable that the valve holder and the cover are integrally formed.
What provided the housing which accommodates a valve mechanism and is accommodated in the said valve accommodating part is preferable.
It is preferable that the valve housing portion and the connecting member, or the housing and the connecting member are integrally formed.
A thing provided with two valve mechanisms each connected with two internal containers is preferred.
In the passage communicating the internal container and the outside air, it is preferable that a flow rate adjusting member for controlling the passage diameter is provided.
The discharge container of the present invention is characterized by including an outer container, a plurality of inner containers inserted into the outer container, and the valve assembly of the present invention.

  A valve assembly of the present invention is fixed to an opening of an external container and communicates a plurality of internal containers inserted into the external container with the outside air, and includes a stem hole that communicates the internal container with the outside air. A plurality of valve mechanisms for operating the stem to open and close by opening the stem, and an opening of the external container, and a stem rubber that seals the stem hole and a spring that biases the stem upward A synthetic resin valve holder having a plurality of valve accommodating portions that are inserted into the valve mechanism and accommodating the valve mechanism, a synthetic resin cover that covers an upper surface of the stem rubber and closes the valve accommodating portion, and the valve Since it has a metal mountain cover for fixing the holder to the outer container and a cylindrical connecting member for connecting the valve housing part and the inner container, a synthetic resin tree Cover are fixed directly at pressing to the valve housing portion a stem rubber valve mechanism, corrosion mountain cover is difficult to occur.

Such a valve assembly in which the valve holder and the resin cover are integrally formed can be assembled simply by inserting the valve mechanism from below the valve holder. In addition, the cost can be reduced by reducing the number of parts.
In the case where a housing that accommodates the valve mechanism and is accommodated in the valve accommodating portion is provided, the valve mechanism is accommodated in the housing and then inserted into the valve accommodating portion to facilitate the mounting.
When the valve accommodating portion and the connecting member, or the housing and the connecting member are integrally formed, the number of parts can be reduced, the seal between each part does not need to be considered, and the assembling work is facilitated.
When two valve mechanisms respectively connected to the two inner containers are provided, for example, it is preferably used for a two-component hair dye or the like.
When a flow rate adjusting member that controls the passage diameter is provided in the passage that communicates the internal container and the outside air, the discharge amount of the contents can be adjusted during use by changing the passage diameter during normal use and during manufacturing. Instead, the contents can be filled from the stem into the inner container in a short time during manufacture.
Since the discharge container of the present invention includes the outer container, a plurality of inner containers inserted into the outer container, and the valve assembly of the present invention, there is little corrosion as a whole and high safety.

It is a partial front sectional view showing an example of a discharge container relevant to the present invention. It is a partially expanded view of the discharge container of FIG. 3a and 3b are front sectional views showing an example of a valve assembly related to the present invention. 4A and 4B are a front sectional view and a partially enlarged view showing an example of a valve assembly related to the present invention, respectively, and FIG. 4C is a perspective view of a flow rate adjusting member. 5a and 5b are front sectional views showing an example of a valve assembly related to the present invention, and FIG. 5c is a sectional view showing a part of still another example of the resin cover. FIG . 6A is a front sectional view showing an example of a valve assembly related to the present invention , and FIG . 6B is a front sectional view showing an embodiment of the valve assembly of the present invention . It is front sectional drawing which shows an example of the valve assembly relevant to this invention.

  The discharge container 10 of FIG. 1 includes an external container 11, two internal containers 12 inserted therein, and two valve mechanisms that are fixed to the external container 11 and communicate between the two internal containers and the outside air. And a valve assembly 15. A discharge member 16 is attached to the valve assembly 15 of the discharge container 10 to allow the two inner containers 12 to communicate with the outside air at the same time. The discharge member may be a member that can be operated independently so that the inner container communicates with the outside air separately.

The external container 11 is a pressure-resistant container provided with a cylindrical body 11a, a tapered shoulder 11b, a cylindrical neck 11c, and a thick flange 11d at its upper end opening. The neck portion 11 c and the flange portion 11 d of the outer container 11 have the same inner surface, and the inner surface 11 e constitutes the opening of the outer container 11.
This outer container 11 is formed from a synthetic resin such as polyethylene terephthalate, nylon, polypropylene, etc., for example, by biaxial stretch blow molding in which air is blown into the interior while a bottomed cylindrical parison is stretched in the axial direction to expand in the radial direction. Is done. In particular, it is preferable to use a synthetic resin material having translucency in order to visually recognize the shape of the inner container and the remaining amount of contents. In order to prevent gas permeation, it is preferable to provide a vapor deposition film with carbon, aluminum oxide, silica or the like in the form of gas on the inner surface and / or outer surface of the outer container. However, you may shape | mold from metal plates, such as aluminum. In that case, it is preferable to roll-process the upper end of the opening to form a bead instead of the thick flange 11d.

  The inner container 12 is a pouch type formed by bonding the periphery of a sheet. The inner container 12 is bonded and connected to a connecting portion at a lower end of a housing of a valve assembly described later. As the sheet of the inner container 12, a sheet that does not allow permeation or erosion of the contents to be filled is appropriately selected. For example, synthetic resin sheets such as polyethylene, polypropylene, polyethylene terephthalate, nylon and eval, vapor-deposited resin sheets obtained by vapor-depositing inorganic substances such as silica and alumina on synthetic resin sheets, metal foil sheets such as aluminum, or synthetic resin sheets, vapor-deposited resin sheets, A laminated sheet in which at least two sheets selected from metal foil sheets are laminated can be mentioned.

  As shown in FIG. 2, the valve assembly 15 is inserted into two valve mechanisms 21, an opening of the outer container 11, a valve holder 22 that holds the valve mechanism 21, and the valve holder 22 is fixed to the outer container 11. And a housing 24 that is accommodated in the valve holder 22 and accommodates the valve mechanism 21.

The valve mechanism 21 allows a cylindrical stem 27 to be inserted into the housing 24 so as to be able to move up and down so as to protrude from the upper opening of the housing 24, and allows the stem 27 to be inserted. It has a ring-shaped stem rubber 28 that closes and a spring 29 that constantly biases the stem 27 upward. In this valve mechanism 21, the stem 27 and the stem rubber 28 urged upward are suppressed by a resin cover portion 37 of the valve holder 22 described later.
The stem 27 includes an opening 27a at the upper end, a stem passage 27b extending from the opening to the middle, and a stem hole 27c communicating with the lower portion of the stem passage 27b on the outer periphery. The stem 27 includes a cylindrical stem upper portion 30a in which the stem inner passage 27b extends vertically, and a stem lower portion 30b whose outer diameter is larger than that of the stem upper portion 30a and whose lower portion is in contact with the upper end of the spring. The stem rubber 28 is arranged so that the center hole thereof is a step (position of the stem hole 27c) between the stem upper part 30a and the stem lower part 30b. In the stem 27, the outer peripheral edge of the upper end of the stem lower portion 30 b urged upward by the spring 29 contacts the lower surface of the stem rubber, the stem hole 27 c is closed, and the inside of the housing 24 and the outside air are shut off. The stem 27, the stem rubber 28, and the spring 29 have the same structure as a conventionally known aerosol valve.
The stem 27 of the valve mechanism 21 is formed from a synthetic resin such as polyacetal, nylon, or polybutylene terephthalate.

The valve holder 22 includes a plug portion 31 that is inserted along the inner surface 11e of the opening of the outer container 11, an engagement flange portion 32 that is formed on the upper end and protrudes radially outward, and the engagement flange portion 32. And a lid 33 protruding upward. An annular recess 31 a that holds the O-ring 35 is formed on the outer periphery of the stopper portion 31. The engagement flange portion 32 is disposed on the upper surface of the flange portion 11 d of the outer container 11, and the lid portion 33 is disposed above the outer container 11. In the discharge container 10, the outer container 11 and the valve assembly 15 are sealed with an O-ring 35.
The valve holder 22 is formed with two cylindrical valve accommodating portions 36 that penetrate vertically from the plug portion 31 to the lid portion 33 and accommodate and hold the housing 24. On the inner surface of the valve accommodating portion 36, an engagement protrusion 36a that engages with a step portion 24a of the housing of the valve mechanism, which will be described later, is formed annularly or radially. The upper end of the valve housing part 36 is a ring-shaped resin cover part 37 formed so as to close the valve housing part 36. The center hole of the resin cover portion 37 is configured to pass through the stem 27 and not through the housing 24 and the stem rubber 28.
Such a valve holder 22 is formed from a synthetic resin such as polyacetal, nylon, or polybutylene terephthalate.

  The mountain cover 23 fixes the cylindrical cover portion 23a that covers the lid portion 33 of the valve holder 22, the engagement flange portion 32 of the valve holder 22, and the flange portion 11d of the external container 11, and has a diameter larger than that of the cover portion 23a. And a cylindrical fixing portion 23b. Further, the cover portion 23a is formed with an insertion hole 23c through which the stem 27 is passed. Such a mountain cover 23 is formed from a metal plate such as aluminum or stainless steel, and the valve assembly 15 is fixed to the outer container 11 by bending the lower end of the fixing portion 23b with respect to the lower surface of the flange portion 11d of the outer container 11. can do.

The housing 24 is formed with a step portion 24a whose diameter is reduced downward in order to engage with the above-described valve holder 22 on the outer periphery of the side surface. At the lower end of the housing 24, a cylindrical connecting portion 24b that connects to the inner container 12 protrudes downward. A rubber holding portion 24 c that holds the stem rubber 28 is formed on the inner surface of the upper end of the housing 24.
The housing 24 is molded from a synthetic resin such as polyacetal, nylon, or polybutylene terephthalate.

The discharge container 10 configured in this way can be made into a discharge product by filling different contents in each inner container 12 and filling the propellant between the outer container 11 and the inner container 12. it can.
Examples of the contents include a two-component hair dye composed of an alkaline first agent containing an oxidative dye and an acidic second agent containing an oxidizer. Although it does not specifically limit as a form of a 1st agent and a 2nd agent, Since it can discharge by the pressure of a propellant only by operating a discharge member, what has viscosity, such as cream and a gel, can be used.
Examples of the propellant include compressed gases such as nitrogen, carbon dioxide, and compressed air, and liquefied gases such as liquefied petroleum gas, dimethyl ether, and hydrofluoroolefin. The inside of the aerosol container is 0.2 to 1.0 MPa. Pressurize.
Then, both valve mechanisms 21 are opened by pressing the discharge member 16 downward. That is, the contents filled in the inner container 12 are supplied to the discharge member 16 via the housing 24 (from the connecting portion 24b to the inside of the housing 24) of the valve mechanism 21 and the stem 27 (from the stem hole 27c to the opening portion 27a). It is discharged from the discharge hole 16a of the discharge member 16.

  The discharge container 10 prevents the resin cover portion 37 from contacting the mountain cover 23 even if the contents penetrate the stem rubber 28 in the discharge path from the inner container 12 to the discharge member 16 (or the stem 27). Corrosion of the mountain cover 23 due to the contents can be prevented. Further, since the stem 27 and the stem rubber 28 of the valve mechanism 21 are suppressed by the resin cover portion 37 of the valve holder 22, the force of the stem 27 and the stem rubber 28 biased by the spring 29 causes the mountain cover 23 to The vicinity of the insertion hole 23c of the cover portion 23a is not deformed, and the sealing performance of the valve mechanism 21 is not weakened.

  This discharge container 10 is provided with a housing that accommodates a valve mechanism in a valve housing portion of a valve holder having a configuration according to the present invention, and is formed by integrally molding a valve holder and a resin cover having a configuration according to the present invention. The housing and the connecting member of the configuration of the present invention are integrally formed.

In the discharge container 40a of FIG. 3a, the height of the valve assembly 15 protruding from the outer container 11 is low. Specifically, the height of the cover portion 33 of the valve holder 22 and the cover portion 23a of the mountain cover 23 is lower than that of the discharge container 10 of FIG. Other configurations are substantially the same as those of the discharge container 10 of FIG.
By reducing the height of the lid portion 33 of the valve assembly 15, the connecting portion 24b of the housing can be shortened. Since the connecting portion 24b made of a synthetic resin is a thin portion at the housing portion, the connecting portion 24b may permeate into the other passage depending on the contents, depending on the contents. However, by shortening the connecting portion 24b as shown in FIG. 3a, the opening of the inner container 12 can be adhered so as to cover the entire connecting portion 24b, and the contents can be prevented from penetrating. Can be prevented. Moreover, although the contents easily remain in the connecting portion 24b, the remaining amount can be reduced by shortening the contents.

The discharge container 40b of FIG. 3b is formed by molding the housing and the connecting member of the configuration of the present invention as separate members. That is, the valve assembly 15 includes the connecting member 42 that connects the inner container 12 and the housing 41. Further, the outer container 11 includes a groove 11f constituting a propellant filling passage extending in the vertical direction on the inner surface of the flange portion 11d. Other configurations are substantially the same as those of the discharge container 10 of FIG.
Specifically, the lower end of the housing 41 has a cylindrical engaging portion 41 a that protrudes downward. The connecting member 42 has a cylindrical upper member 42a that covers the outer periphery of the engaging portion 41a, a cylindrical lower member 42b that welds the opening of the inner container 12, and a base portion 42c that connects them. The upper member 42a has a larger diameter than the lower member 42b. The base portion 42c is formed with an inner cylinder portion 42d to be inserted into the engaging portion 41a inside the upper member 42a. By making the housing 41 and the connecting member 42 separate members, it is possible to select materials according to their roles. For example, the housing 41 can be selected from a material having elasticity and strength that can be easily attached to the valve holder, such as polyacetal or polybutylene terephthalate, and the connecting member 42 is welded according to the material of the innermost layer of the inner container. For example, a polyolefin such as polypropylene can be selected.
Here, the propellant filling passage may be configured by providing a groove on the outer periphery of the valve holder.

The discharge container 50 of FIG. 4a is a thing without the cover part 23a of the valve holder 22 and the mountain cover 23 in the discharge container 10 of FIG. Further, a flow rate adjusting member 51 is provided between the engaging portion 41 a of the housing 41 and the connecting member 42. The other structure is substantially the same as the discharge container 40b of FIG. 3b.
The flow rate adjusting member 51 can change the flow rate of the content flowing from the upstream (outside air side) and the flow rate of the content flowing from the downstream (internal container side). Specifically, it includes a cylindrical main body 51a, leg portions 51b extending downward from the lower end thereof, and a cylindrical reduced diameter portion 51c extending upward from the top surface of the main body 51a. A plurality of leg portions 51b are arranged in a ring shape, and are configured to expand by a pressing force from above.
The flow rate adjusting member 51 is sealed by the top surface of the main body 51 a being pressed against the housing by the pressure of the propellant through the contents between the main body 51 a and the housing 41, and the content supplied from the inner container 12. The flow rate of the object can be controlled by a passage in the reduced diameter portion 51c. On the other hand, when the contents are filled from the stem 27 after the discharge container 50 is assembled, the legs 51b of the flow rate adjusting member 51 can be deformed by the pressure for filling the contents, and the flow rate adjusting member 51 is Since it can be reduced in the direction, the diameter of the filling path can be increased. As described above, the flow rate adjusting member 51 can increase the flow rate from the upstream side and decrease the flow rate from the downstream side, so that the contents can be filled in the production in a short period of time and the discharge amount can be controlled.

The discharge container 60a of FIG. 5a is a container in which the valve mechanism is directly accommodated in the valve housing portion of the valve holder having the structure of the present invention, and the valve holder and the resin cover having the structure of the present invention are molded as separate members. The valve holder and the connecting member of the configuration of the present invention are molded as separate members.
The valve assembly 15 includes two valve mechanisms 61, a valve holder 62 that is inserted into the opening of the outer container 11 and holds the valve mechanism 61, and two resin covers 63 made of synthetic resin that fix the valve mechanism to the valve holder. And a mountain cover 64 for fixing the valve holder 62 to the outer container 11.
The valve mechanism 61 is substantially the same as the valve mechanism 21 of FIG. 1 except that the housing is formed integrally with the valve holder 62.

The valve holder 62 includes a plug portion 31, an engagement flange portion 32, and a lid portion 33, similar to the valve holder 22 of FIG. 2, and holds an O-ring 35 on the outer periphery of the plug portion 31. An annular recess 31a is formed. The valve holder 62 is formed with two cylindrical valve accommodating portions 62b penetrating vertically from the plug portion 31 to the lid portion 33. The stem 27, stem rubber 28, and spring 29 of the valve mechanism 61 are inserted into the valve housing portion 62b. Moreover, the cylindrical engaging part 41a engaged with the connection member 42 similar to FIG. 3b is formed in the lower end of the valve accommodating part 62b. A circular groove 62a is formed on the upper surface of the lid portion 33 so as to surround the valve housing portion 62b. A resin cover 63, which will be described later, is locked in the groove 62a.
The resin cover 63 includes a ring-shaped cover portion 63a and an engaging portion 63b extending downward from the edge portion. The engaging portion 63b is engaged with the groove 62a, and the upper surface of the stem rubber is suppressed by the lower surface of the cover portion 63a. The central hole of the cover portion 63a is configured to allow only the stem 27 to pass therethrough as in the case of the resin cover portion 37 described above.
The mountain cover 64 is substantially the same as the mountain cover 23 of FIG.

The discharge container 60b of FIG. 5b is a container without the cover 33a of the valve holder 62 and the cover part 23a of the mountain cover 64 in the discharge container 60a of FIG. 5a. The other configuration is substantially the same as the discharge container 60a of FIG. 5a.
When the resin cover 63 is a separate member from the valve holder 62 as shown in FIGS. 5a and 5b, an engaging means is provided between the resin cover and the valve holder so that the resin cover and the valve holder are strongly connected. Also good. For example, as shown in FIG. 5c, an engagement protrusion 63c that protrudes inward is provided at the tip of the engagement portion 63b of the resin cover 63, and a recess 62c that engages with the engagement protrusion 63c is provided on the inner surface of the groove 62a of the valve holder. May be. Thus, by providing the engagement means between the resin cover and the valve holder, the valve mechanism is held more firmly, and deformation of the mountain cover 23 near the insertion hole 23c is prevented. Further, the diameter of the engaging portion 63b may be designed to be slightly smaller than the diameter of the groove 62a, and the resin cover 63 and the groove 62a may be strongly fitted.

The discharge container 70a of FIG. 6a is a container in which the valve mechanism is directly accommodated in the valve housing portion of the valve holder having the structure of the present invention, and the valve holder and the resin cover having the structure of the present invention are molded as separate members. The valve holder and the connecting member of the configuration of the present invention are molded as separate members. Moreover, the resin cover 71 which integrally formed two resin covers 63 which close each valve | bulb accommodating part in FIG. 5a is used. The other configuration is substantially the same as the discharge container 60a of FIG. 5a, and includes a valve mechanism 61, a valve holder 62, and a mountain cover 64. Since the outer diameter of the resin cover 71 is the same as the outer diameter of the lid portion of the valve holder, the resin cover 71 is pressed evenly by the mountain cover when the valve holder is fixed to the outer container, and the two valve mechanisms are It can be surely sealed.
The discharge container 70b of FIG. 6b is a thing without the cover part 33a of the valve holder 62 and the cover part 23a of the mountain cover 64 in the discharge container 70a of FIG. 6a. The recess 73 is pressed against the resin cover 71 downwardly on the top surface of the mountain cover 64 is formed. The other configuration is substantially the same as the discharge container 60a of FIG. 5a. The resin cover 71 can be strongly pressed by the recess 73, and the valve mechanism can be reliably sealed.

  The discharge container 80 in FIG. 7 directly accommodates the valve mechanism in the valve housing portion of the valve holder having the structure of the present invention, and molding the valve holder and the resin cover having the structure of the present invention as separate members. A holder and a connecting member are integrally formed. With this configuration, the number of parts of the valve assembly 81 can be reduced. The other configuration is substantially the same as the discharge container 70a of FIG. 6B, and includes a valve mechanism 61, a valve holder 62, a mountain cover 64, and a resin cover 71.

  In the embodiment of the present invention, a container having two inner containers and a valve mechanism is disclosed, but a discharge container having three or more inner containers and a valve mechanism may be used. Moreover, although the aerosol valve was mentioned as a valve mechanism, the pump-type valve provided with the stem which moves up and down may be sufficient.

DESCRIPTION OF SYMBOLS 10 Discharge container 11 Outer container 11a Cylindrical trunk | drum 11b Tapered shoulder part 11c Cylindrical neck part 11d Flange part 11e Inner surface 11f Groove 12 Inner container 15 Valve assembly 16 Discharge member 21 Valve mechanism 22 Valve holder 23 Mountain cover 23a Cylinder -Shaped cover part 23b Fixed part 23c Insertion hole 24 Housing 24a Step part 24b Connection part 24c Rubber holding part 27 Cylindrical stem 27a Upper end opening 27b Stem passage 27c Stem hole 28 Ring-shaped stem rubber 29 Spring 30a Stem upper part 30b Stem lower part 31 Plug part 31a Annular recessed part 32 Engagement flange part 33 Lid part 35 O-ring 36 Valve accommodating part 36a Engagement protrusion 37 Resin cover part 40a, 40b Discharge container 41 Housing 41a Engagement part 42 Connecting member 42a upper member 42b lower member 42c base 42d inner cylinder 50 discharge container 51 flow rate adjusting member 51a main body 51b leg 51c reduced diameter part 60a, 60b discharge container 61 valve mechanism 62 valve holder 62a groove 62b valve accommodating part 62c concave part 63 resin cover 63a Cover part 63b Engagement part 63c Engagement protrusion 64 Mountain cover 70a, 70b Discharge container 71 Resin cover 73 Recess 80 Discharge container 81 Valve assembly

Claims (8)

A valve assembly that is fixed to the opening of the outer container and communicates a plurality of inner containers inserted into the outer container with the outside air,
A stem with a stem hole that communicates the internal container with the outside air, a stem rubber that seals the stem hole, and a spring that biases the stem upward, and opens and closes the stem hole by operating the stem A plurality of valve mechanisms to
A valve holder made of a synthetic resin, which is inserted into the opening of the external container and includes a plurality of valve accommodating portions for accommodating the valve mechanism;
One synthetic resin cover that covers the top surfaces of the plurality of stem rubbers of the plurality of valve mechanisms and closes the plurality of valve accommodating portions;
A metal mountain cover for fixing the valve holder to an external container;
It has a cylindrical connecting member that connects the valve housing part and the inner container,
The mountain cover includes a recess that presses the cover downward on its top surface.
Valve assembly. The cover includes a cover portion that holds the upper surface of the stem rubber from above,
The concave portion presses the cover portion of the cover downward,
The valve assembly according to claim 1. The valve holder and the cover are integrally molded,
The valve assembly according to claim 1 or 2 . A housing that accommodates the valve mechanism and is accommodated in the valve accommodating portion,
The valve assembly according to claim 1 or 2 . 5. The valve assembly according to claim 1 , wherein the valve housing portion and the connecting member, or the housing and the connecting member are integrally formed. With two valve mechanisms each communicating with two inner containers,
The valve assembly according to claim 1 or 2 . In the passage that communicates the inner container and the outside air,
A flow rate adjusting member for controlling the passage diameter is provided,
The valve assembly according to claim 1 or 2 . And an outer container, a plurality of inner container to be inserted therein, the discharge vessel having a valve assembly according to claim 1 or 2 wherein.

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