JP5566724B2 - Aerosol content injection device - Google Patents

Aerosol content injection device Download PDF

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JP5566724B2
JP5566724B2 JP2010045166A JP2010045166A JP5566724B2 JP 5566724 B2 JP5566724 B2 JP 5566724B2 JP 2010045166 A JP2010045166 A JP 2010045166A JP 2010045166 A JP2010045166 A JP 2010045166A JP 5566724 B2 JP5566724 B2 JP 5566724B2
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stem
aerosol
push button
volume
aerosol content
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JP2011178440A (en
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信行 花井
謙 尾形
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Toyo Aerosol Industry Co Ltd
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本発明は、エアゾール容器に充填した頭髪用品、化粧品、制汗剤、消臭剤、医薬品、その他のエアゾール内容物を噴射するためのエアゾール内容物噴射装置に関するもので、特に、アフタードローの抑制に関するものである。 The present invention relates to an aerosol content injection device for injecting hair products, cosmetics, antiperspirants, deodorants, pharmaceuticals, and other aerosol contents filled in an aerosol container, and particularly relates to suppression of after-draw. Is.

エアゾール製品、特に、フォーム剤、後発泡剤等を内容物とするエアゾール製品に於いては、エアゾール内容物の噴射完了後に、噴射流路内に残留したエアゾール内容物が徐々に発泡し、噴射流路のノズルから液だれを生じる「アフタードロー」が、見栄えや衛生上の観点から問題となっている。このアフタードローを解消するためのものとして、特許文献1の図5に示すようなエアゾール内容物噴射装置が知られている。 In aerosol products, especially aerosol products containing foaming agent, post-foaming agent, etc., after the injection of the aerosol content is completed, the aerosol content remaining in the injection flow path gradually foams and the injection flow “After-draw” that causes dripping from the nozzle of the road is a problem from the viewpoint of appearance and hygiene. As a means for solving this after-draw, an aerosol content injection device as shown in FIG. 5 of Patent Document 1 is known.

この特許文献1の図5に示す従来技術に於いては、エアゾール容器のステムと接続し先端をノズルとする噴射流路を押釦に形成している。また、この噴射流路の上部の押釦内にドーム型のダイヤフラムを固定することにより前記噴射流路とは別個に容積可変空間を形成し、この容積可変空間と噴射流路を、噴射流路に対して直角に形成した吸引通路で接続している。そして、エアゾール内容物の噴射時に於いては、ダイヤフラムの上方に配置した押釦の可動部材によりダイヤフラムを扁平状に押圧変形させることにより、容積可変空間の容積を最小とし、エアゾール内容物の噴射完了後には、ダイヤフラムをその弾性復元力によりドーム型に復元して、容積可変空間の容積を最大とする。そして、この容積の増大に伴って容積可変空間内を負圧化させることにより、噴射流路内に残留したエアゾール内容物を、吸引通路を介して容積可変空間内に吸引収納し、噴射流路のノズルからのアフタードローを防止しようとするものである。   In the prior art shown in FIG. 5 of Patent Document 1, an injection flow path having a nozzle connected to a stem of an aerosol container and having a nozzle at the tip is formed in the push button. Further, by fixing a dome-shaped diaphragm in the push button at the top of the injection flow path, a variable volume space is formed separately from the injection flow path, and the variable volume space and the injection flow path are used as the injection flow path. They are connected by a suction passage formed at a right angle. When injecting the aerosol contents, the volume of the variable volume space is minimized by pressing and deforming the diaphragm in a flat shape by the movable member of the push button disposed above the diaphragm, and after the injection of the aerosol contents is completed. Restores the diaphragm to a dome shape by its elastic restoring force, and maximizes the volume of the variable volume space. As the volume increases, the inside of the variable volume space is made negative pressure so that the aerosol content remaining in the injection flow path is sucked and stored in the variable volume space via the suction passage. It is intended to prevent after-draw from the nozzle.

特開2004−329985号公報JP 2004-329985 A

しかしながら、特許文献1の図5に示す従来技術に於いては、噴射流路内に残留したエアゾール内容物を、噴射流路に対して直角に形成した吸引通路を介して、噴射流路とは別個に配置した容積可変空間内に吸引しなければならないため、吸引効率が悪いものとなっていた。そのため、噴射流路のノズル側にエアゾール内容物が残留しやすいものとなり、このようにエアゾール内容物の噴射流路のノズル側にエアゾール内容物が残留した場合には、この残留したエアゾール内容物がノズル周縁部から外部に漏れ出し、アフタードローの原因となるおそれがあった。 However, in the prior art shown in FIG. 5 of Patent Document 1, the injection flow path is defined by the aerosol passage remaining in the injection flow path at a right angle to the injection flow path. Since suction has to be performed in a variable volume space arranged separately, suction efficiency is poor. Therefore, the aerosol content tends to remain on the nozzle side of the injection flow path, and when the aerosol content remains on the nozzle side of the injection flow path of the aerosol content, the residual aerosol content is There was a risk of leaking outside from the peripheral edge of the nozzle and causing after-draw.

そこで、本願発明は上述の如き課題を解決しようとするものであって、容積可変空間をノズルとステムの間のエアゾール内容物の噴射流路中に配置することにより、噴射完了後に噴射流路に残留したエアゾール内容物を、ノズル側からステム側へ確実に吸引可能とするものである。 Accordingly, the present invention seeks to solve the above-described problems, and by disposing the variable volume space in the injection flow path of the aerosol contents between the nozzle and the stem, the injection flow path is provided after completion of the injection. The remaining aerosol content can be reliably sucked from the nozzle side to the stem side.

本願発明は、上述の如き課題を解決するため、エアゾール容器のステムと、このステムと接続しエアゾール内容物の噴射を可能とするノズルと、このノズルとステムとの間の押釦内でエアゾール内容物の噴射流路中に形成した容積可変空間と、を備えている。また、この容積可変空間を、エアゾール内容物の非噴射時に最大容積とし、ステムの押圧によるエアゾール内容物の噴射時に最小容積とするよう弾性変形可能に被覆するとともに最大容積方向に付勢力を保持し、押釦の押圧時にのみステムと当接してステムを押圧可能な押圧駒に内周縁を固定するとともに外周縁を押釦の内周面に固定したダイヤフラムと、このダイヤフラムを付勢力に抗して押圧し容積可変空間の容積を最小容積方向に弾性変形可能とするとともに、このダイヤフラムの最小容積方向への弾性変形にともなってステムを押圧しエアゾール内容物の噴射を可能とした押釦とを備えている。 In order to solve the above-described problems, the present invention provides an aerosol container stem, a nozzle connected to the stem and capable of injecting the aerosol content, and an aerosol content in a push button between the nozzle and the stem. And a variable volume space formed in the injection flow path. In addition, this volume-variable space is elastically deformed so as to have a maximum volume when the aerosol contents are not ejected and a minimum volume when the aerosol contents are ejected by pressing the stem, and the urging force is maintained in the maximum volume direction. A diaphragm that abuts the stem only when the push button is pressed and fixes the inner peripheral edge to a pressing piece that can press the stem, and has an outer peripheral edge fixed to the inner peripheral surface of the push button, and presses the diaphragm against the urging force. There is provided a push button that enables the volume of the variable volume space to be elastically deformed in the minimum volume direction and that allows the aerosol to be ejected by pressing the stem in accordance with the elastic deformation of the diaphragm in the minimum volume direction.

本発明は上述の如く構成したものであり、ノズルとステムとの間のエアゾール内容物の噴射流路中に容積可変空間を形成したものであるから、エアゾール内容物の噴射完了後に噴射流路中に残留したエアゾール内容物を、噴射流路の軸方向に沿ってノズル側からステム側に確実に吸引することが可能となり、噴射流路のノズルからのアフタードローを確実に防止することが可能となる。 The present invention is configured as described above, and a volume-variable space is formed in the injection flow path of the aerosol contents between the nozzle and the stem. It is possible to reliably suck the aerosol content remaining in the nozzle from the nozzle side to the stem side along the axial direction of the injection flow path, and to reliably prevent after-draw from the nozzle of the injection flow path Become.

また、ダイヤフラムは押釦の押圧時にのみステムと当接してステムを押圧可能な押圧駒に内周縁を固定するとともに外周縁を押釦の内周面に固定したものであるから、押釦をエアゾール容器に接続する際に、エアゾール容器のステムを押圧することなく接続することができるものである。そのため、エアゾール容器に押釦を接続する際に、エアゾール容器内に収納したエアゾール内容物が不用意に吐出することなく、エアゾール内容物が無駄に消耗したり、押釦の接続時にエアゾール内容物が周囲に飛散したりするなどの事態を確実に防ぐことができる。  In addition, the diaphragm abuts the stem only when the push button is pressed, and the inner periphery is fixed to a pressing piece that can press the stem, and the outer periphery is fixed to the inner peripheral surface of the push button, so the push button is connected to the aerosol container. When doing so, the connection can be made without pressing the stem of the aerosol container. For this reason, when the push button is connected to the aerosol container, the aerosol contents stored in the aerosol container are not inadvertently discharged, and the aerosol contents are wasted, or when the push button is connected, It is possible to reliably prevent the situation such as scattering.

押釦の非押圧状態を示す断面図。Sectional drawing which shows the non-pressing state of a pushbutton. 押釦の押圧状態を示す断面図。Sectional drawing which shows the press state of a pushbutton.

以下、本発明の実施例を図面において説明する。尚、本明細書中に於いて、左、右、上、下とは図1を基準としている。(1)は押釦で、図面に示す如く、下端部に設けた環状溝(20)をマウンテンカップ(21)の外周に固定接続している。また、一側に突出したノズル体(2)の軸方向に噴出路(4)を形成し、この噴出路(4)の一端部をノズル(3)とするとともに噴出路(4)の他端側を、押釦(1)の内周面(6)と接続している。上記押釦(1)の内周面(6)の上端には、蛇腹状のダイヤフラム(8)を配置しており、このダイヤフラム(8)とステム(9)との間に容積可変空間(10)を形成している。また、押釦(1)の内部の容積可変空間(10)を介してステム(9)と接続するとともに、この容積可変空間(10)の上部に、底面に流通溝(17)を設けた押圧駒(18)を上下動可能に配置し、この押圧駒(18)の下端にダイヤフラム(8)の内周を固定するとともにダイヤフラム(8)の外周縁を押釦(1)の内周面(6)に固定することにより、ダイヤフラム(8)により容積可変空間(10)の上方を被覆し、この容積可変空間(10)をノズル(3)及びステム(9)とのみ接続している。また、押釦(1)内には容積可変空間(10)の下端を閉止する閉止部材(22)を配置し、この閉止部材(22)の上端外周に環状段部(23)を形成するとともに、閉止部材(22)内にエアゾール容器(13)のステム(9)を挿通している。   Embodiments of the present invention will be described below with reference to the drawings. In this specification, left, right, upper, and lower are based on FIG. (1) is a push button, and as shown in the drawing, an annular groove (20) provided at the lower end is fixedly connected to the outer periphery of the mountain cup (21). Further, an ejection path (4) is formed in the axial direction of the nozzle body (2) protruding to one side, and one end of the ejection path (4) is used as a nozzle (3) and the other end of the ejection path (4). The side is connected to the inner peripheral surface (6) of the push button (1). A bellows-like diaphragm (8) is arranged at the upper end of the inner peripheral surface (6) of the push button (1), and the volume variable space (10) is provided between the diaphragm (8) and the stem (9). Is forming. Further, the pressure piece is connected to the stem (9) through the variable volume space (10) inside the push button (1), and the flow groove (17) is provided on the bottom surface of the variable volume space (10). (18) is arranged to be movable up and down, the inner periphery of the diaphragm (8) is fixed to the lower end of the pressing piece (18), and the outer peripheral edge of the diaphragm (8) is connected to the inner peripheral surface (6) of the push button (1). The volume (10) is covered with the diaphragm (8), and the volume variable space (10) is connected only to the nozzle (3) and the stem (9). Further, a closing member (22) for closing the lower end of the variable volume space (10) is disposed in the push button (1), and an annular step (23) is formed on the outer periphery of the upper end of the closing member (22). The stem (9) of the aerosol container (13) is inserted through the closing member (22).

上述の如く構成したものに於いて、上記押圧駒(18)を押圧すると、図2に示す如く押圧駒(18)が下降し、ダイヤフラム(8)を下方に弾性変形しながら押圧駒(18)の下端が押釦(1)のステム(9)を押圧してエアゾール容器(13)のバルブ機構(16)を開放し、エアゾール容器(13)内のエアゾール内容物が、ステム(9)、押圧駒(18)の流通溝(17)、容積可変空間(10)、噴出路(4)を介してノズル(3)から外部に噴射される。   In the above-described configuration, when the pressing piece (18) is pressed, the pressing piece (18) is lowered as shown in FIG. 2, and the pressing piece (18) is elastically deformed downward. The lower end of the push button presses the stem (9) of the push button (1) to open the valve mechanism (16) of the aerosol container (13), and the aerosol content in the aerosol container (13) It is sprayed from the nozzle (3) to the outside through the flow groove (17), the variable volume space (10), and the ejection path (4).

また、エアゾール内容物の噴射完了後、上記押釦(1)への押圧を解除すると、ステム(9)がステムスプリング(19)の復元力で復元上昇して元位置に復帰し、エアゾール容器(13)のバルブ機構(16)が閉止するとともに、押圧駒(18)もダイヤフラム(8)の復元力で元位置に復帰し、押釦(1)の押圧時に最小となっていた容積可変空間(10)の容積が、図1に示す如く最大まで復元される。これにより、容積可変空間(10)内が負圧化し、この負圧化に伴う吸引力で、噴射流路(14)の噴出路(4)内に残留しているエアゾール内容物が、容積可変空間(10)方向に吸引される。   When the pressure on the push button (1) is released after the injection of the aerosol contents is completed, the stem (9) is restored and raised by the restoring force of the stem spring (19) to return to the original position, and the aerosol container (13 ) Valve mechanism (16) is closed, and the pressure piece (18) is also returned to its original position by the restoring force of the diaphragm (8), and the volume variable space (10) which is minimized when the push button (1) is pressed. Is restored to the maximum as shown in FIG. Thereby, the inside of the volume variable space (10) becomes negative pressure, and the aerosol content remaining in the ejection path (4) of the ejection flow path (14) is variable in volume by the suction force accompanying this negative pressure. It is sucked in the direction of the space (10).

本実施例のエアゾール内容物噴射装置は上記の如き構成であるため、押釦(1)をエアゾール容器(13)に接続する際に、エアゾール容器(13)のステムを押圧することなく接続することができるものである。そのため、エアゾール容器(13)に押釦(1)を接続する際に、エアゾール容器(13)内に収納したエアゾール内容物が不用意に吐出することなく、
エアゾール内容物が無駄に消耗したり、押釦(1)の接続時にエアゾール内容物が周囲に飛散したりするなどの事態を確実に防ぐことができる。
Since the aerosol content injection device of the present embodiment is configured as described above, when the push button (1) is connected to the aerosol container (13), it can be connected without pressing the stem of the aerosol container (13). It can be done. Therefore, when the push button (1) is connected to the aerosol container (13), the aerosol contents stored in the aerosol container (13) are not accidentally discharged,
It is possible to reliably prevent the situation where the aerosol contents are wasted and the aerosol contents are scattered around when the push button (1) is connected.

1 押釦
3 ノズル
6 内周面
8 ダイヤフラム
9 ステム
10 容積可変空間
13 エアゾール容器
14 噴射流路
18 押圧駒
DESCRIPTION OF SYMBOLS 1 Push button 3 Nozzle 6 Inner peripheral surface 8 Diaphragm 9 Stem 10 Volume variable space 13 Aerosol container 14 Injection flow path 18 Pressing piece

Claims (1)

エアゾール容器のステムと、このステムと接続しエアゾール内容物の噴射を可能とするノズルと、このノズルとステムとの間の押釦内でエアゾール内容物の噴射流路中に形成した容積可変空間と、この容積可変空間を、エアゾール内容物の非噴射時に最大容積とし、ステムの押圧によるエアゾール内容物の噴射時に最小容積とするよう弾性変形可能に被覆するとともに最大容積方向に付勢力を保持し、押釦の押圧時にのみステムと当接してステムを押圧可能な押圧駒に内周縁を固定するとともに外周縁を押釦の内周面に固定したダイヤフラムと、このダイヤフラムを付勢力に抗して押圧し容積可変空間の容積を最小容積方向に弾性変形可能とするとともに、このダイヤフラムの最小容積方向への弾性変形にともなってステムを押圧しエアゾール内容物の噴射を可能とした押釦とからなることを特徴とするエアゾール内容物噴射装置。 An aerosol container stem, a nozzle connected to the stem to enable injection of the aerosol content, and a variable volume space formed in the injection flow path of the aerosol content in a push button between the nozzle and the stem; the variable volume space, and the maximum volume at the time of non-ejection of aerosol content, maintains a biasing force to the maximum volume direction with elastically deformable covering to a minimum volume at the time of injection of the aerosol content by pressing of the stem, a push button A diaphragm whose inner peripheral edge is fixed to a pressing piece that can abut the stem and press the stem only when pressing is pressed, and whose outer peripheral edge is fixed to the inner peripheral surface of the push button, and this diaphragm is pressed against the urging force to change the volume. The volume of the space can be elastically deformed in the minimum volume direction, and the stem is pressed by the elastic deformation of the diaphragm in the minimum volume direction. Aerosol content-jet apparatus characterized by comprising allowing an injection of the contents of the a push button.
JP2010045166A 2010-03-02 2010-03-02 Aerosol content injection device Active JP5566724B2 (en)

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US2894660A (en) * 1958-05-13 1959-07-14 Edward L Gordon Dispenser cap
FR2639259B1 (en) * 1988-11-21 1991-03-29 Oreal NOZZLE FOR DISPENSING A PRODUCT, ESPECIALLY A FOAMING PRODUCT
JPH0995375A (en) * 1995-09-28 1997-04-08 Yoshino Kogyosho Co Ltd Aerosol container
FR2792913B1 (en) * 1999-04-29 2001-06-01 Oreal DEVICE FOR ACTUATING A DISPENSING MEMBER IN PARTICULAR A VALVE, AND ASSEMBLY EQUIPPED WITH THE OPERATING DEVICE ACCORDING TO THE INVENTION
US7104424B2 (en) * 2003-12-17 2006-09-12 Precision Valve Corporation Aerosol valve actuator
US20090045223A1 (en) * 2004-08-03 2009-02-19 Incro Limited Dispenser for aerosol foams and the like, having a post-expansion chamber

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