JP4144688B2 - Injection button with metering valve - Google Patents

Injection button with metering valve Download PDF

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Publication number
JP4144688B2
JP4144688B2 JP2002106280A JP2002106280A JP4144688B2 JP 4144688 B2 JP4144688 B2 JP 4144688B2 JP 2002106280 A JP2002106280 A JP 2002106280A JP 2002106280 A JP2002106280 A JP 2002106280A JP 4144688 B2 JP4144688 B2 JP 4144688B2
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Japan
Prior art keywords
valve
injection button
metering valve
injection
metering
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JP2002106280A
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JP2003299991A (en
Inventor
保夫 大島
博史 菅野
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Mitani Valve Co Ltd
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Mitani Valve Co Ltd
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Priority to JP2002106280A priority Critical patent/JP4144688B2/en
Publication of JP2003299991A publication Critical patent/JP2003299991A/en
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Description

【0001】
【発明の属する技術分野】
本発明は、エアゾール容器の頂部に突設されたバルブステムに装着された状態で押し下げ操作されることにより、エアゾール容器内の内容物を定量噴射させる定量弁付噴射ボタンに関するものである。
【0002】
【従来の技術】
エアゾール容器用定量バルブとしては、エアゾール容器の頂部に設けられるバルブステム付きの噴射バルブのハウジングを定量用弁室として構成し、ステムが押下げ操作されると、ハウジングへの流入路を閉鎖することにより予め定量弁室に充填されていた内容物を噴射させるのが通常である。
【0003】
【発明が解決しようとする課題】
したがって、通常のエアゾール容器を定量噴射式に使用する場合、内部の噴射バルブ自体が定量噴射専用に構成されているものを購入する必要があり、噴射バルブを共通にして出荷又は使用段階で定量噴射式に切換えるのは不可能であった。
【0004】
本発明は、このような点に鑑みて、エアゾール容器の頂部に突設されたバルブステムに装着される噴射ボタンに、定量噴射機能を持たせた定量弁付噴射ボタンを提供することを目的とする。
【0005】
【課題を解決するための手段】
本発明は、この目的を達成するために、請求項1により、エアゾール容器の頂部に突設されたバルブステムに装着された状態で押し下げ操作されることにより、エアゾール容器内の内容物を定量噴射させる定量弁付噴射ボタンであって、噴射口(26a)に連通するノズル部(25)が形成されている噴射ボタン本体(20)に、円筒状の定量用弁室(23)を形成する筒部(29)がノズル部(25)を一体に包囲して形成され、バルブステム(3)に基部(11)で嵌着し、かつ前記ノズル部(25)の基端部に形成された環状弁体(27)を閉鎖する弁座(17)を先端部に形成する棒状の弁座部(10)が、筒部(29)の基端側の開口部(23a)から挿入されると共に、基部(11)の外周面に筒部(29)の内周面がシール状態で上下にスライド可能にガイドされ、環状弁体(27)を弁座(17)から離反させて定量用弁室(23)からノズル部(25)への弁口(16)を形成するように、噴射ボタン本体(20)及び弁座部(10)間に弾性体(15)が装着され、またバルブステム先端を定量用弁室(23)に連通させる連通路(14)が基部(11)に形成され、噴射ボタン本体(20)を押し下げ操作すると、弾性体(15)が圧縮されて弁口(16)が閉鎖され、次いでバルブステム(3)が下動して開口されることにより、内容物が連通路(14)を通して定量用弁室(23)に充填され、続いて噴射ボタン本体(20)の押し下げ操作を解除すると、バルブステム(3)が閉鎖されると共に弾性体(15)の弾性復元力で弁口(16)が開口されて定量用弁室(23)に充填された内容物が噴射口(26a)から噴射されることを特徴とする。
【0006】
噴射ボタン本体(20)を弾性体(15)の弾力に抗して押下げ操作すると、先ず弁口(16)が閉鎖して弁座部(10)が下動し、次いでバルブステム(3)の下動でその先端から内容物が定量用弁室(23)へ連通路(14)を通して充填される。押下げ操作を解除すると、バルブステム(3)がその上動により閉鎖され、次いで弾性体(15)の弾性復帰力により弁口(16)が開放されることにより、定量用弁室(23)に充填されている加圧状態の内容物が噴射される。
【0007】
【発明の実施の形態】
図1及び図2を基に本発明の実施の形態の一例による定量弁付噴射ボタンを説明する。定量弁付噴射ボタンは、図1に示すように、エアゾール容器1の頂部に装着されるマウンティングカップ2に突設されたバルブステム3に装着される。この定量弁付噴射ボタンは、ノズル部25及び円筒状の定量用弁室23を形成する円筒状の筒部29が一体に形成された噴射ボタン本体20に、定量用弁室23の基端側の開口部23aから棒状の弁座部10が挿入されて構成される。
【0008】
噴射ボタン本体20の上面部24は操作部として形成されると共に、段差状の周面部21には、横向きの噴射口26aを有する噴口部材26が嵌入される凹部21aが形成されている。この凹部は、噴口部材26の環状基部26bを係入させ、かつノズル部25の縦方向流路部25aに連通する横方向流路部25bに連通している。円筒状の筒部29は、周面部21の内側に、バルブステム3と同軸状のノズル部25を同心状に包囲するように形成されている。
【0009】
弁座部10は、バルブステム3に嵌着する凹状のステム嵌着部11aを有する基部11に、弁座棒12を先方へ突設して形成されている。この弁座棒の先端部には、ノズル部25の基端部に形成された環状の弁体27を閉鎖するテーパ状弁座17が先端部に形成されている。弁体27は、対応して基端側へ向けて内径が広くなる逆テーパ状に形成されている。噴射ボタン本体20は、上下にスライド可能に弁座部10に係合するように、基部11の外周面及び筒部29の内周面に凹凸部23b、11bが形成されている。凹部23bの縦幅は、上下方向のスライドを許容するように、その範囲に対応して凸部11bよりも広く設定されている。さらに、このスライドがシール状態で行われるように、基部11の先端外周部に、先方へ向けて環状のリップとして斜めに広がるシール部19が形成されている。
【0010】
弁体27を弁座17から離反させて定量用弁室23からノズル部25への環状の弁口16を形成するように、ノズル部25の外周の噴射ボタン本体20の底面及び弁座棒12の外周基部11の上面のばね座間に、ノズル部25及び弁座部10を包囲してコイルばね15が装着されている。コイルばね15のばね力は、マウンティングカップ2内に構成されたバルブ内でバルブステム3を上方へ付勢しているばねのばね力よりも弱く設定されている。さらに、バルブステム3を定量用弁室23に連通させるように、基部11には、バルブステム3の先方に位置する内面から領域から定量用弁室23に斜めに貫通する連通路14が形成されている。
【0011】
このように、定量用弁室23、この弁室に収納された弁座部10、噴射ボタン本体20のノズル部25の基端部に形成された弁体27及びコイルばね15により、噴射ボタン内に定量弁が構成されている。また、噴射ボタン本体20に、別体のコイルばね15を組み込み、さらに弁座部10を凹凸部23b、11bで係合させて定量弁付噴射ボタンとして組付けられる。
【0012】
このように構成された定量弁付噴射ボタンの動作は次の通りである。噴射ボタン本体20の上面部24をコイルばね15のばね力に抗して押下げ操作すると、先ず弁体27が弁座17に当接して弁口16を閉鎖した状態で、弁座部10が下動する。次いで、バルブステム3が下方へ駆動されてマウンティングカップ2内でステムガスケットでシールされていたステム孔が開口する。これにより、内容物が定量用弁室23へ連通路14を通して充填される。図2は、噴射ボタン本体20が押下げ操作されて、定量用弁室23に内容物が充填された状態を示す。
【0013】
噴射ボタン本体20の押下げ操作を解除すると、バルブステム3の上動によりそのステム孔が閉鎖されると共にコイルばね15の弾性復帰力により噴射ボタン本体20が弁座部10よりも相対的に上方へ上昇する。これにより、弁口16が開放されることにより、定量用弁室23の容積に対応した定量の加圧状態の内容物が、ノズル部25を通して噴射口26aから定量噴射される。
【0014】
尚、前述の実施の形態において、噴射ボタン本体の定量用弁室を形成する筒部は、外側の同心状周面部を廃止して、円筒状筒部の外周面自体を噴射ボタン本体の外周面とする構造も考えられる。また、横向き噴射でなく、上向きのパイプ状ノズルの周囲に操作部を形成したスパウト型の噴射ボタンとして構成することもできる。
【0015】
【発明の効果】
請求項1の発明によれば、押下げ操作により内容物を連続的に吐出する通常動作の噴射ボタンに代えて、押下げ操作ごとに定量噴射を行わせる定量弁付きの噴射ボタンが選択的にバルブステムに装着可能となる。請求項2の発明によれば、噴射ボタン本体に、別体の弁座部を組付け状態に係合させて定量弁付噴射ボタンが構成される。
【図面の簡単な説明】
【図1】本発明の実施の形態による定量弁付噴射ボタンの通常状態での断面図である。
【図2】同定量弁付噴射ボタンの動作を説明する断面図である。
【符号の説明】
3 バルブステム
10 弁座部
11 基部
14 連通路
16 弁口
17 弁座
20 噴射ボタン本体
23 定量用弁室
25 ノズル部
26a 噴射口
27 弁体
29 筒部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an injection button with a metering valve that performs quantitative injection of the contents in an aerosol container by being pushed down while attached to a valve stem protruding from the top of the aerosol container.
[0002]
[Prior art]
As the metering valve for the aerosol container, the housing of the injection valve with a valve stem provided at the top of the aerosol container is configured as a metering valve chamber, and when the stem is pushed down, the inflow path to the housing is closed. It is usual to inject the contents previously filled in the metering valve chamber.
[0003]
[Problems to be solved by the invention]
Therefore, when a regular aerosol container is used for a fixed-quantity injection type, it is necessary to purchase an internal injection valve that is specially configured for fixed-quantity injection. It was impossible to switch to a formula.
[0004]
In view of such a point, the present invention has an object to provide an injection button with a metering valve in which a metering function is provided on an injection button attached to a valve stem protruding from the top of an aerosol container. To do.
[0005]
[Means for Solving the Problems]
In order to achieve this object, according to the present invention, the content in the aerosol container is quantitatively injected by being pushed down while attached to a valve stem protruding from the top of the aerosol container. A cylinder that forms a cylindrical metering valve chamber (23) in a spray button body (20) in which a nozzle portion (25) communicating with the spray port (26a) is formed. A portion (29) is formed so as to integrally surround the nozzle portion (25), is fitted to the valve stem (3) at the base portion (11), and is formed at the base end portion of the nozzle portion (25). A rod-shaped valve seat portion (10) that forms a valve seat (17) for closing the valve body (27) at the distal end is inserted from the opening (23a) on the proximal end side of the tubular portion (29), and The inner peripheral surface of the cylindrical portion (29) is sealed to the outer peripheral surface of the base portion (11). So that the annular valve body (27) is separated from the valve seat (17) to form the valve port (16) from the metering valve chamber (23) to the nozzle portion (25). The elastic body (15) is mounted between the injection button main body (20) and the valve seat portion (10), and the communication passage (14) for communicating the tip of the valve stem with the metering valve chamber (23) is the base portion (11). When the injection button body (20) is pushed down, the elastic body (15) is compressed and the valve port (16) is closed, and then the valve stem (3) is moved downward and opened, When the content is filled into the metering valve chamber (23) through the communication passage (14), and then the push-down operation of the injection button body (20) is released, the valve stem (3) is closed and the elastic body (15). The valve mouth (16) is opened by the elastic restoring force of Wherein the content filled in the amount valve chamber (23) is injected from the injection port (26a).
[0006]
When the injection button body (20) is pushed down against the elasticity of the elastic body (15), the valve opening (16) is first closed and the valve seat (10) is moved downward, and then the valve stem (3). With the downward movement, the content is filled from the tip thereof into the metering valve chamber (23) through the communication passage (14). When the push-down operation is released, the valve stem (3) is closed by its upward movement, and then the valve port (16) is opened by the elastic restoring force of the elastic body (15), whereby the metering valve chamber (23). The contents in a pressurized state filled in are injected.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Based on FIG.1 and FIG.2, the injection button with a metering valve by an example of embodiment of this invention is demonstrated. As shown in FIG. 1, the injection valve with a metering valve is attached to a valve stem 3 protruding from a mounting cup 2 attached to the top of the aerosol container 1. This injection button with a metering valve is provided on the base side of the metering valve chamber 23 on the jet button body 20 in which a cylindrical tube portion 29 forming a nozzle portion 25 and a cylindrical metering valve chamber 23 is integrally formed. The rod-shaped valve seat 10 is inserted through the opening 23a.
[0008]
The upper surface portion 24 of the injection button main body 20 is formed as an operation portion, and the stepped peripheral surface portion 21 is formed with a recess 21a into which the injection hole member 26 having a horizontal injection port 26a is fitted. This recess communicates with the lateral flow path portion 25 b that engages the annular base portion 26 b of the nozzle member 26 and communicates with the vertical flow path portion 25 a of the nozzle portion 25. The cylindrical tube portion 29 is formed inside the peripheral surface portion 21 so as to concentrically surround the nozzle portion 25 coaxial with the valve stem 3.
[0009]
The valve seat portion 10 is formed by projecting a valve seat rod 12 forward from a base portion 11 having a concave stem fitting portion 11a fitted to the valve stem 3. A tapered valve seat 17 that closes an annular valve body 27 formed at the proximal end portion of the nozzle portion 25 is formed at the distal end portion of the valve seat rod. Correspondingly, the valve body 27 is formed in a reverse taper shape whose inner diameter becomes wider toward the proximal end side. As for the injection button main body 20, the uneven | corrugated | grooved parts 23b and 11b are formed in the outer peripheral surface of the base 11, and the inner peripheral surface of the cylinder part 29 so that the valve seat part 10 may be engaged slidably up and down. The vertical width of the concave portion 23b is set wider than the convex portion 11b corresponding to the range so as to allow vertical sliding. Further, a seal portion 19 that is obliquely extended toward the tip as an annular lip is formed on the outer peripheral portion of the tip of the base portion 11 so that the slide is performed in a sealed state.
[0010]
The bottom surface of the injection button body 20 on the outer periphery of the nozzle portion 25 and the valve seat rod 12 are formed so that the valve body 27 is separated from the valve seat 17 to form an annular valve port 16 from the metering valve chamber 23 to the nozzle portion 25. A coil spring 15 is mounted between the spring seats on the upper surface of the outer peripheral base portion 11 so as to surround the nozzle portion 25 and the valve seat portion 10. The spring force of the coil spring 15 is set to be weaker than the spring force of the spring that urges the valve stem 3 upward in the valve formed in the mounting cup 2. Further, the base 11 is formed with a communication passage 14 that obliquely penetrates from the inner surface located in front of the valve stem 3 to the metering valve chamber 23 so that the valve stem 3 communicates with the metering valve chamber 23. ing.
[0011]
Thus, the metering valve chamber 23, the valve seat portion 10 accommodated in the valve chamber, the valve body 27 formed at the base end portion of the nozzle portion 25 of the injection button body 20, and the coil spring 15, The metering valve is configured in the above. Further, a separate coil spring 15 is incorporated into the injection button body 20, and the valve seat portion 10 is engaged with the concave and convex portions 23b and 11b to be assembled as an injection button with a metering valve.
[0012]
The operation of the injection valve with a metering valve configured as described above is as follows. When the upper surface portion 24 of the injection button main body 20 is pushed down against the spring force of the coil spring 15, first, the valve seat 27 is brought into contact with the valve seat 17 and the valve opening 16 is closed. Move down. Next, the valve stem 3 is driven downward to open the stem hole sealed in the mounting cup 2 with the stem gasket. As a result, the content is filled into the metering valve chamber 23 through the communication passage 14. FIG. 2 shows a state where the injection button body 20 is pushed down and the metering valve chamber 23 is filled with the contents.
[0013]
When the push-down operation of the injection button main body 20 is released, the stem hole is closed by the upward movement of the valve stem 3 and the injection button main body 20 is relatively above the valve seat portion 10 by the elastic return force of the coil spring 15. Rise to. Thus, when the valve port 16 is opened, a fixed amount of pressurized content corresponding to the volume of the metering valve chamber 23 is quantitatively injected from the injection port 26 a through the nozzle portion 25.
[0014]
In the above-described embodiment, the cylindrical portion forming the metering valve chamber of the injection button main body eliminates the outer concentric peripheral surface portion, and the outer peripheral surface of the cylindrical cylindrical portion itself is the outer peripheral surface of the injection button main body. A structure is also conceivable. Moreover, it can also be comprised as a spout type injection button which formed the operation part around the upward pipe-shaped nozzle instead of sideways injection.
[0015]
【The invention's effect】
According to the first aspect of the present invention, instead of a normal operation injection button that continuously discharges contents by a pressing operation, an injection button with a metering valve that selectively performs a constant injection for each pressing operation is selectively used. It can be attached to the valve stem. According to the invention of claim 2, the injection button body is configured by engaging a separate valve seat portion with the injection button body in the assembled state.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view in a normal state of an injection button with a metering valve according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating the operation of an injection button with an identification amount valve.
[Explanation of symbols]
3 Valve stem 10 Valve seat portion 11 Base portion 14 Communication passage 16 Valve port 17 Valve seat 20 Injection button main body 23 Metering valve chamber 25 Nozzle portion 26a Injection port 27 Valve body 29 Tube portion

Claims (2)

エアゾール容器の頂部に突設されたバルブステムに装着された状態で押し下げ操作されることにより、エアゾール容器内の内容物を定量噴射させる定量弁付噴射ボタンであって、
噴射口に連通するノズル部が形成されている噴射ボタン本体に、円筒状の定量用弁室を形成する筒部が前記ノズル部を包囲して一体に形成され、
前記バルブステムに基部で嵌着し、かつ前記ノズル部の基端部に形成された環状弁体を閉鎖する弁座を先端部に形成する棒状の弁座部が、前記筒部の基端側の開口部から挿入されると共に、前記基部の外周面に前記筒部の内周面がシール状態で上下にスライド可能にガイドされ、
前記環状弁体を前記弁座から離反させて前記定量用弁室から前記ノズル部への弁口を形成するように、前記噴射ボタン本体及び前記弁座部間に弾性体が装着され、また前記バルブステム先端を前記定量用弁室に連通させる連通路が前記基部に形成され、
前記噴射ボタン本体を押し下げ操作すると、前記弾性体が圧縮されて前記弁口が閉鎖され、次いで前記バルブステムが下動して開口されることにより、内容物が前記連通路を通して前記定量用弁室に充填され、続いて前記噴射ボタン本体の押し下げ操作を解除すると、前記バルブステムが閉鎖されると共に前記弾性体の弾性復元力で前記弁口が開口されて前記定量用弁室に充填された内容物が噴射口から噴射されることを特徴とする定量弁付噴射ボタン。
An injection button with a metering valve for quantitatively injecting the contents in the aerosol container by being pushed down while attached to a valve stem protruding from the top of the aerosol container,
In the injection button body in which the nozzle portion communicating with the injection port is formed, a cylindrical portion forming a cylindrical metering valve chamber is integrally formed surrounding the nozzle portion,
A rod-shaped valve seat portion, which is fitted to the valve stem at the base portion and forms a valve seat at the distal end portion for closing the annular valve body formed at the proximal end portion of the nozzle portion, is on the proximal end side of the cylindrical portion. And the inner peripheral surface of the cylindrical portion is guided to slide up and down in a sealed state on the outer peripheral surface of the base portion ,
An elastic body is mounted between the injection button main body and the valve seat portion so that the annular valve body is separated from the valve seat to form a valve opening from the metering valve chamber to the nozzle portion. A communication passage for communicating the valve stem tip with the metering valve chamber is formed in the base,
When the injection button main body is pushed down, the elastic body is compressed and the valve port is closed, and then the valve stem is moved downward to be opened, so that the content can be passed through the communication passage and the metering valve chamber. And then the release operation of the injection button body is released, the valve stem is closed and the valve opening is opened by the elastic restoring force of the elastic body to fill the metering valve chamber An injection button with a metering valve, wherein an object is injected from an injection port.
噴射ボタン本体に弁座部に保持されるように、この弁座部の基部の外周面及び筒部の内周面にスライド可能に係合する凹凸部が形成され、この凹部の上下方向の幅が前記凸部の幅よりもスライド範囲に応じて広いことを特徴とする請求項1記載の定量弁付噴射ボタン。  The injection button body is formed with an uneven portion that slidably engages with the outer peripheral surface of the base portion of the valve seat portion and the inner peripheral surface of the tube portion so as to be held by the valve seat portion. 2. The injection button with a metering valve according to claim 1, wherein is wider than the width of the convex portion according to the slide range.
JP2002106280A 2002-04-09 2002-04-09 Injection button with metering valve Expired - Lifetime JP4144688B2 (en)

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WO2019202882A1 (en) 2018-04-18 2019-10-24 株式会社三谷バルブ Fixed quantity injection unit

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JP4492865B2 (en) * 2004-10-29 2010-06-30 株式会社吉野工業所 Fixed-amount aerosol container
JP4747325B2 (en) * 2006-02-06 2011-08-17 株式会社三谷バルブ Aerosol container quantitative injection mechanism and aerosol type product equipped with this quantitative injection mechanism
JP4935276B2 (en) * 2006-09-27 2012-05-23 株式会社三谷バルブ Aerosol container continuous injection mechanism and aerosol type product equipped with this continuous injection mechanism
CN103097261B (en) * 2010-09-09 2014-11-19 三谷阀门有限公司 Actuator inverted constant-volume injection mechanism, and aerosol type product provided with actuator inverted constant-volume injection mechanism
JP7308399B2 (en) * 2019-04-04 2023-07-14 株式会社丸一 Aerosol dispensing actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019202882A1 (en) 2018-04-18 2019-10-24 株式会社三谷バルブ Fixed quantity injection unit
US11208255B2 (en) 2018-04-18 2021-12-28 Mitani Valve Co., Ltd. Fixed quantity injection unit

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