WO2025205426A1

WO2025205426A1 - Fixed amount discharge mechanism and product provided with said fixed amount discharge mechanism

Info

Publication number: WO2025205426A1
Application number: PCT/JP2025/011022
Authority: WO
Inventors: 博史菅野
Original assignee: Mitani Valve Co Ltd
Current assignee: Mitani Valve Co Ltd
Priority date: 2024-03-25
Filing date: 2025-03-21
Publication date: 2025-10-02
Anticipated expiration: 2026-09-25

Abstract

In a fixed amount discharge mechanism which is for a liquid content and in which a measurement mode and a discharge mode are switched by an operation, prevention of content leakage, enhancement of design flexibility, and reduction in manufacturing costs are facilitated.　A fixed amount chamber A is demarcated by: an upstream-side cylindrical inner circumferential surface 13d which is provided to a movable plug 13, and a downstream-side cylindrical inner circumferential surface 13f which is continuous to the upstream-side cylindrical inner circumferential surface; and an upstream-side piston 12d which is provided to a shoulder cover 12, slides along the upstream-side cylindrical inner circumferential surface 13d, and has a downstream-side surface with a bulging center, and a downstream-side skirt part 12h which slides along the downstream-side cylindrical inner circumferential surface 13f. An upstream-side skirt part 13e, which is provided to an edge part of the upstream-side cylindrical inner circumferential surface 13d, and the upstream-side piston 12d constitute an upstream valve of the fixed amount chamber A. A groove part 13g, which is provided in the downstream-side cylindrical inner circumferential surface 13f, and the downstream-side skirt part 12h constitute a downstream valve of the fixed amount chamber. The need for a configuration which enables relative movement from the fixed amount chamber A to the periphery of a discharge port 13b is eliminated.

Description

Fixed-volume dispensing mechanism and product equipped with this fixed-volume dispensing mechanism

　本発明は、容器の上部に設けられて液状の内容物を操作ごとに一定量計量して吐出できる計量吐出機構に関する。 The present invention relates to a measuring and dispensing mechanism that is installed at the top of a container and can measure and dispense a fixed amount of liquid contents with each operation.

　特に利用者が計量吐出機構を計量モードに切り換えてから容器を含め全体を倒立状態にして内容物を定量室に流入させ、その後吐出モードに切り換えて定量室の内容部を吐出可能な状態にする計量吐出機構に関する。 In particular, this relates to a measuring and dispensing mechanism in which the user switches the measuring and dispensing mechanism to measuring mode, then turns the entire mechanism, including the container, upside down to allow the contents to flow into the metering chamber, and then switches it to dispensing mode to make the contents of the metering chamber ready for dispensing.

　本明細書では単なる説明の便宜上、瓶状の容器本体の底が下側になった状態を「正立」といい、容器本体の底が上側になった状態を「倒立」という。すなわち図１は正立状態の計量吐出容器を示し、図３は倒立状態の計量吐出容器を示している、また各図の説明においては図の上方向を「上」、下方向を「下」という。 For the sake of convenience, in this specification, the state in which the bottom of the bottle-shaped container body is facing downwards is referred to as "upright," and the state in which the bottom of the container body is facing upwards is referred to as "inverted." That is, Figure 1 shows a metered dispensing container in an upright state, and Figure 3 shows a metered dispensing container in an inverted state. In addition, in the explanations of each figure, the upward direction of the figure is referred to as "up" and the downward direction is referred to as "down."

　従来、頭や足などの皮膚にあらかじめ設定した量の薬液を塗布するための容器製品が各種利用されている。 Traditionally, various container products have been used to apply a preset amount of medicinal liquid to the skin on the head, feet, etc.

　このような製品は、利用者が容器から吐出部を保護するキャップを取り外すことで吐出部を引き出し計量モードにしてから、底部が上側となる倒立状態にしたのち塗布対象面に吐出部を押し当てることで吐出モードとなって吐出部の吐出口から薬液が設定された所定量のみ吐出される（特許文献２参照）。 In such products, the user removes the cap protecting the discharge part from the container, pulls out the discharge part, and switches to metering mode. Then, by turning the container upside down with the bottom facing up and pressing the discharge part against the surface to be treated, the device enters discharge mode, and a predetermined amount of liquid medicine is dispensed from the discharge port of the discharge part (see Patent Document 2).

　キャップを取り外す操作と吐出部を塗布対象面に押し当てる操作とによって内容物を計量する定量室の弁を動作させるため、利用者は計量のための特別な操作を意識せずに利用することができる。 The valve in the metering chamber that measures the contents is activated by removing the cap and pressing the discharge part against the surface to be coated, so users can use the product without having to worry about any special operations to measure the contents.

特開２０２２－０１８０８６号公報Japanese Patent Application Laid-Open No. 2022-018086

　しかしながら、キャップを取り外したあとの計量モードでは吐出部周囲の筒状部が内容物の存在する内部機構から引き出されて外部に露出した状態になり、利用者が吐出部を塗布対象面に押し当てるときに、その筒状部に付着した内容物が意図しない部分に移行したり、毛髪や手指に触れて汚染された付着内容物が吐出モードへの移行にともない内部機構に引き込まれて容器内部の内容物を汚染したりする問題があった。 However, when the cap is removed and the device is in metering mode, the cylindrical part around the discharge part is pulled out from the internal mechanism where the contents are located and exposed to the outside. This causes problems when the user presses the discharge part against the surface to be coated, with the contents adhering to the cylindrical part transferring to unintended areas, or when contaminated contents come into contact with hair or fingers being drawn into the internal mechanism as the device switches to discharge mode, contaminating the contents inside the container.

　また、吐出部が定量室のピストン弁を駆動するため、収容されるハウジングやシリンダーの断面よりピストン弁を駆動する吐出部を細くする必要があり、塗布対象面に押し当てる当接部を拡大する場合には吐出部に別の部材を取り付けるためコスト面で問題があった。 Furthermore, because the discharge part drives the piston valve in the metering chamber, the discharge part that drives the piston valve needs to be thinner than the cross-section of the housing or cylinder in which it is housed. Enlarging the contact area that presses against the surface to be coated poses a cost problem, as a separate component must be attached to the discharge part.

　また、定量室の弁とは独立して吐出部の先端に設けられた吐出弁は利用者が塗布対象面に押し当てない限り閉状態を維持するため、その上流側の動作によって吐出弁とその上流側の弁の間の空間域の容積が変動し、各部の隙間から内容物が漏出して周囲を汚染しやすい問題があった。 Furthermore, the discharge valve, which is installed at the tip of the discharge part independently of the valve in the metering chamber, remains closed unless the user presses it against the surface to be coated. Therefore, upstream movement causes the volume of the space between the discharge valve and the valve upstream of it to fluctuate, creating the problem of the contents leaking from gaps in various parts and easily contaminating the surrounding area.

　そこで本発明では、定量室の下流弁を吐出部側の可動する筒状内周面とこれに内包され容器本体側に固定されたピストンとで構成としてそれぞれが離間・密接することで開閉状態を切り換えることで、下流弁から吐出口までの間の内容物漏出防止を図ることを目的とする。 The present invention aims to prevent leakage of contents from the downstream valve to the discharge port by configuring the downstream valve of the metering chamber with a movable cylindrical inner surface on the discharge portion side and a piston contained within this and fixed to the container body side, and by switching between opening and closing states by moving them apart or in close contact.

　また、可動する吐出部側が筒状内周面すなわちシリンダー側となるので、その外周部形状の制限をなくし、設計自由度の向上と製造時のコストの低減を図ることを目的とする。 Furthermore, since the movable discharge part is the cylindrical inner surface, i.e., the cylinder side, there are no restrictions on the outer peripheral shape, which aims to increase design freedom and reduce manufacturing costs.

　また、吐出弁を設けたものでは、計量モードへの移行で吐出弁を開状態とすることで、吐出弁と下流弁との間の空間域と外部空間域との圧力差を低減するようにして内容物の逆流を防止し、内容物汚染の低減を図ることを目的とする。 Furthermore, in units equipped with a discharge valve, the discharge valve is opened when switching to metering mode, thereby reducing the pressure difference between the space between the discharge valve and downstream valve and the external space, thereby preventing backflow of the contents and reducing contamination of the contents.

　本発明は、以上の課題を次のようにして解決する。 The present invention solves the above problems as follows:

（１）液状の内容物が収容される容器本体（例えば後述の容器本体１１）と、前記容器本体の口部に設けられた固定栓（例えば後述の肩カバー１２）と、前記内容物の吐出口（例えば後述の吐出口１３ｂ）を有し前記固定栓に液密でかつ直動可能に設けられて、前記固定栓との間に前記内容物を計量する定量室（例えば後述の定量室Ａ），前記容器本体の内部と前記定量室との連通を制御する上流弁（例えば後述の筒状外周面１２ｆ，上流側スカート部１３ｅ）および前記定量室と前記吐出口への通路との連通を制御する下流弁（例えば後述の下流側スカート部１２ｈ，下流側筒状内周面１３ｆ，溝部１３ｇ）を設定し、利用者の操作による前記固定栓との相対位置によって前記上流弁が開状態かつ前記下流弁が閉状態となる計量モードと前記上流弁が閉状態かつ前記下流弁が開状態となる吐出モードとの間を切り換え可能な可動栓（例えば後述の可動栓１３）と、を備えた計量吐出機構において、
　前記定量室は、
前記可動栓に設けられた上流側筒状内周面（例えば後述の上流側筒状内周面１３ｄ）およびこれに続く下流側筒状内周面（例えば後述の下流側筒状内周面１３ｆ）と、前記固定栓に設けられ前記上流側筒状内周面を摺動し下流側の面中央が膨出した上流側ピストン（例えば後述の上流側ピストン１２ｄ）および前記下流側筒状内周面を摺動する下流側ピストン（例えば後述の下流側スカート部１２ｈ）とで区画され、
　前記上流弁は、
お互いが液密に密接することで閉状態となり一部または全部が離間することで開状態となる前記上流側筒状内周面と前記上流側ピストンとから構成され、
　前記下流弁は、
お互いが液密に密接することで閉状態となり一部または全部が離間することで開状態となる前記下流側筒状内周面と前記下流側ピストンとから構成され、
　前記吐出口は、
　その周囲に利用者が塗布対象面（例えば後述の塗布対象面Ｂ）に押し当てて操作する当接部（例えば後述の当接部１３ａ）を有し、
　前記吐出モードから前記計量モードに移行するときに、前記下流弁が閉状態となってから前記上流弁が開状態となり、
　前記計量モードから前記吐出モードに移行するときに、前記上流弁が閉状態となってから前記下流弁が開状態となる、
構成態様のものを用いる。
（２）上記（１）において、
　前記上流側ピストンは、
下流側に膨らむかたちの椀状部（例えば後述の椀状部１２ｅ）とその周囲から上流側に続く筒状外周面（例えば後述の筒状外周面１２ｆ）からなり、
　前記上流側筒状内周面は、
前記吐出モードのときに前記筒状外周面に接触可能な環状シール部（例えば後述の上流側スカート部１３ｅ）を上流側端部に有し、
　前記下流側筒状内周面は、
前記吐出モードのときに前記下流側ピストンから一部を離間して内容物を通過させるための溝部（例えば後述の溝部１３ｇ）を有する、
構成態様のものを用いる。
（３）上記（１），（２）において、
　前記下流側ピストンは、
前記上流側ピストンの下流側中央に一体となるかたちで接続されている
構成態様のものを用いる。
（４）上記（１）～（３）において、
　前記上流側ピストンの断面積と前記下流側ピストンの断面積が同じである、
構成態様のものを用いる。
（５）上記（１）～（３）において、
　前記上流側ピストンの断面積より前記下流側ピストンの断面積が小さい、
構成態様のものを用いる。
（６）上記（１）～（５）において、
　前記可動栓と着脱可能に係合する引上げ係合部（例えば後述の引上げ係合部１４ｂ）を有した前記可動栓を覆うキャップ（例えば後述のキャップ１４）を備え、
　前記キャップを前記容器本体または前記固定栓に装着するときに、前記引上げ係合部が前記可動栓に係合し、
　前記キャップを前記容器本体または前記固定栓から取り外すときに、前記引上げ係合部は前記可動栓を前記計量モードに移行してから前記可動栓との係合が外れる、
構成態様のものを用いる。
（７）上記（６）において、
　前記キャップと前記容器本体または前記固定栓とはそれぞれお互いと結合する螺合部（例えば後述の外向き螺合部１１ｂ，内向き螺合部１４ａ）を有し、
　前記螺合部の結合を解除するときに、前記引上げ係合部は前記可動栓を前記計量モードに移行してから前記可動栓との係合が外れる、
構成態様のものを用いる。
（８）上記（６）において、
　前記引上げ係合部は、
前記吐出口の内面に係合する、
構成態様のものを用いる。
（９）上記（１）～（８）において、
　前記上流側ピストンと前記下流側ピストンとが一体に成形されている、
構成態様のものを用いる。
（１０）上記（１）～（９）において、
　前記下流側筒状内周面の下流側端部に前記吐出口へ続く吐出弁座（例えば後述の吐出弁座１３ｍ）および前記下流側ピストンに弾性部（例えば後述の弾性部１２ｎ）を介して接続された吐出弁体（例えば後述の吐出弁体１２ｍ）からなる吐出弁を設け、
　前記計量モードでは前記吐出弁体と前記吐出弁座は離間して前記吐出弁が開状態となり、
前記吐出モードに移行することで前記吐出弁体が前記吐出弁座に当接し前記吐出弁が閉状態となり、
　利用者が前記吐出口を塗布対象面に押し付けることで、前記吐出口から露出した前記吐出弁体が前記弾性部の付勢に抗して移動し前記吐出弁が開状態となる、
構成態様のものを用いる。
（１１）上記（１）～（１０）において、
　前記可動栓は、
上流側筒状内周面の外周側に環状空間を挟んで円筒部（例えば後述の外側円筒部１３ｊ）を有し、
　前記固定栓は、
前記上流側ピストンの外側に前記円筒部の内周面に液密に摺動する外向きのスカート部（例えば後述の外側スカート部１２ｋ）を有する、
構成態様のものを用いる。 (1) A container body (for example, the container body 11 described later) in which liquid contents are accommodated, a fixed stopper (for example, the shoulder cover 12 described later) provided at the opening of the container body, a metering chamber (for example, the metering chamber A described later) having a discharge port (for example, the discharge port 13b described later) for the contents and provided in a liquid-tight and linearly movable manner on the fixed stopper, for measuring the contents between the fixed stopper and the fixed stopper, an upstream valve (for example, the cylindrical outer peripheral surface 12f, the upstream skirt 12b described later) for controlling communication between the inside of the container body and the metering chamber, a downstream valve (e.g., a downstream skirt portion 12h, a downstream cylindrical inner peripheral surface 13f, and a groove portion 13g, which will be described later) that controls communication between the metering chamber and a passage to the discharge port, and a movable stopper (e.g., a movable stopper 13, which will be described later) that can be switched between a metering mode in which the upstream valve is open and the downstream valve is closed and a discharge mode in which the upstream valve is closed and the downstream valve is open, depending on the relative position of the movable stopper operated by a user with respect to the fixed stopper,
The metering chamber is
the movable plug is provided with an upstream cylindrical inner peripheral surface (for example, an upstream cylindrical inner peripheral surface 13d described below) and a downstream cylindrical inner peripheral surface (for example, a downstream cylindrical inner peripheral surface 13f described below) that is continuous therewith; an upstream piston (for example, an upstream piston 12d described below) that is provided in the fixed plug and slides on the upstream cylindrical inner peripheral surface and has a bulged center on the downstream side; and a downstream piston (for example, a downstream skirt portion 12h described below) that slides on the downstream cylindrical inner peripheral surface,
The upstream valve
the upstream-side cylindrical inner circumferential surface and the upstream-side piston are in a closed state when they are in liquid-tight contact with each other and in an open state when they are partially or completely separated from each other,
The downstream valve
the downstream-side cylindrical inner circumferential surface and the downstream-side piston are in a closed state when they are in liquid-tight contact with each other and in an open state when they are partially or completely separated from each other,
The discharge port is
The device has a contact portion (for example, a contact portion 13a described later) around it that the user presses against a surface to be coated (for example, a surface B to be coated described later) to operate it,
When the mode is shifted from the discharge mode to the metering mode, the downstream valve is closed and then the upstream valve is opened,
When the mode is shifted from the metering mode to the discharge mode, the upstream valve is closed and then the downstream valve is opened.
A configuration of the above is used.
(2) In (1) above,
The upstream piston is
The nozzle comprises a bowl-shaped portion (for example, bowl-shaped portion 12e described later) that bulges out toward the downstream side and a cylindrical outer peripheral surface (for example, cylindrical outer peripheral surface 12f described later) that extends from the periphery of the bowl-shaped portion toward the upstream side.
The upstream cylindrical inner peripheral surface is
an annular seal portion (e.g., an upstream skirt portion 13e described later) that can come into contact with the cylindrical outer peripheral surface in the discharge mode is provided at the upstream end portion;
The downstream cylindrical inner peripheral surface is
A groove portion (for example, a groove portion 13g described later) is provided to separate a part of the downstream piston from the downstream piston in the discharge mode to allow the contents to pass through.
A configuration of the above is used.
(3) In the above (1) and (2),
The downstream piston is
The piston is connected to the center of the downstream side of the upstream side piston in an integrated manner.
(4) In the above (1) to (3),
The cross-sectional area of the upstream piston is the same as the cross-sectional area of the downstream piston.
A configuration of the above is used.
(5) In the above (1) to (3),
The cross-sectional area of the downstream piston is smaller than the cross-sectional area of the upstream piston.
A configuration of the above is used.
(6) In the above (1) to (5),
a cap (e.g., cap 14 described later) for covering the movable stopper, the cap having a pull-up engaging portion (e.g., pull-up engaging portion 14b described later) that detachably engages with the movable stopper;
When the cap is attached to the container body or the fixed stopper, the lifting engagement portion engages with the movable stopper,
When the cap is removed from the container body or the fixed stopper, the lifting engagement portion shifts the movable stopper to the measuring mode and then disengages from the movable stopper.
A configuration of the above is used.
(7) In the above (6),
The cap and the container body or the fixed plug each have a threaded portion (for example, an outward threaded portion 11b and an inward threaded portion 14a described below) that are coupled to each other,
When the coupling of the screw portion is released, the pull-up engagement portion shifts the movable stopper to the measurement mode and then disengages from the movable stopper.
A configuration of the above is used.
(8) In the above (6),
The lifting engagement portion is
engages with the inner surface of the discharge port;
A configuration of the above is used.
(9) In the above (1) to (8),
The upstream piston and the downstream piston are integrally molded.
A configuration of the above is used.
(10) In the above (1) to (9),
a discharge valve including a discharge valve seat (e.g., a discharge valve seat 13m described later) continuing to the discharge port at a downstream end of the downstream cylindrical inner peripheral surface and a discharge valve body (e.g., a discharge valve body 12m described later) connected to the downstream piston via an elastic portion (e.g., an elastic portion 12n described later);
In the metering mode, the discharge valve body and the discharge valve seat are separated from each other, and the discharge valve is in an open state.
By shifting to the discharge mode, the discharge valve body abuts against the discharge valve seat, and the discharge valve is closed.
When a user presses the discharge port against a surface to be coated, the discharge valve body exposed from the discharge port moves against the biasing force of the elastic portion, and the discharge valve is brought into an open state.
A configuration of the above is used.
(11) In the above (1) to (10),
The movable plug is
a cylindrical portion (for example, an outer cylindrical portion 13j described later) on the outer peripheral side of the upstream cylindrical inner peripheral surface, with an annular space interposed therebetween;
The fixed plug is
The upstream piston has an outward skirt portion (for example, an outer skirt portion 12k described later) that slides liquid-tightly against the inner circumferential surface of the cylindrical portion on the outer side of the upstream piston.
A configuration of the above is used.

　このような構成からなる定量放出機構およびこれを用いた製品を本発明の対象としている。 The subject of this invention is a metered dose release mechanism configured in this way and products that use it.

　本発明は、以上の構成をとることにより、
内容物漏出の防止、および設計自由度の向上と製造時のコストの低減、
を図ることができる。 By adopting the above-mentioned configuration, the present invention
Preventing leakage of contents, improving design freedom and reducing manufacturing costs,
This can be achieved.

本発明の計量吐出機構の不使用モードを示す説明図である。10 is an explanatory diagram showing a non-use mode of the metered dispensing mechanism of the present invention. FIG. 図１の計量吐出機構のキャップを外す操作の過程で計量モードに移行した状態を示す説明図である。1. FIG. 5 is an explanatory diagram showing a state in which the metering and dispensing mechanism of FIG. 1 has shifted to a metering mode during the process of removing a cap. 図２の計量吐出機構のキャップを外し、上下を反転した倒立状態を示す説明図である。3 is an explanatory diagram showing the metering and dispensing mechanism of FIG. 2 in an inverted state with the cap removed and the mechanism turned upside down. FIG. 図３の計量吐出機構の吐出口周辺を塗布対象面に押し当てて内容物の計量が完了した状態を示す説明図である。4 is an explanatory diagram showing a state in which the periphery of the discharge port of the metering and dispensing mechanism of FIG. 3 is pressed against the surface to be coated and the metering of the contents is completed. FIG. 図４の計量吐出機構の吐出口周辺を塗布対象面にさらに押し当てて吐出口から内容物が流出可能となった吐出モードを示す説明図である。5 is an explanatory diagram showing a dispensing mode in which the periphery of the dispensing opening of the metering and dispensing mechanism of FIG. 4 is further pressed against the surface to be coated, allowing the contents to flow out from the dispensing opening. FIG. 本件発明のノズルチップを備えた計量吐出機構の不使用モードを示す説明図である。1 is an explanatory diagram showing a non-use mode of a metering and dispensing mechanism equipped with a nozzle tip of the present invention. FIG. 本件発明の吐出弁を備えた計量吐出機構の不使用モードを示す説明図である。1 is an explanatory diagram showing a non-use mode of the metering and dispensing mechanism provided with the dispensing valve of the present invention. FIG. 図７の計量吐出機構のキャップを外し計量モードに移行した状態を示す説明図である。8 is an explanatory diagram showing a state in which the cap of the metering and dispensing mechanism of FIG. 7 has been removed and the mode has shifted to a metering mode. FIG. 本件発明の固定栓を一体成型した計量吐出機構の不使用モードを示す説明図である。1 is an explanatory diagram showing the unused mode of the metering and dispensing mechanism integrally molded with the fixed plug of the present invention. FIG. 本件発明の細身化した計量吐出機構の不使用モードを示す説明図である。1 is an explanatory diagram showing the non-use mode of the slim metering and dispensing mechanism of the present invention. FIG. 本件発明の細身化しかつ固定栓を一体成型した計量吐出機構の不使用モードを示す説明図である。1 is an explanatory diagram showing the unused mode of the slender metering and dispensing mechanism of the present invention, which is integrally molded with a fixed plug. FIG.

　図１乃至図１１を用いて、本発明を実施するための形態を説明する。 An embodiment of the present invention will be explained using Figures 1 to 11.

　なお、以下のアルファベット付き参照符号の構成要素（例えば環状凸部１１ａ）は原則として、当該参照符号の数字部分の構成要素（例えば容器本体１１）の一部であることを示している。 In addition, the components with alphabetical reference symbols below (e.g., annular protrusion 11a) generally indicate that they are part of the component indicated by the numerical portion of the reference symbol (e.g., container body 11).

　ここで、図１～図１１において、
１１は液状の内容物を収容する瓶状の容器本体，
１１ａは容器本体１１の開口部の外周面に設けられた環状凸部，
１１ｂは容器本体１１の開口部の外周面に設けられた外向き螺合部，
１２は容器本体１１の開口部に液密に係合して吐出される内容物の通路となる肩カバー，
１２ａは容器本体１１の環状凸部１１ａと係合して後述のキャップ１４の取り外しにともなう外力に抗する環状凹部，
１２ｂは容器本体１１の開口部の内周面に液密に係合する垂下筒状部，
１２ｃは上流側と下流側との仕切り部に設けられて容器本体１１内部と上流弁との間を連通する連通口，
１２ｄは仕切り部の中央に設けられて容器本体１１側から下流側に向かって膨出する態様の上流側ピストン，
１２ｅは上流側ピストン１２ｄの下流側部分であって膨出態様の椀状部，
１２ｆは上流側ピストン１２ｄの椀状部１２ｅから上流側に続く外周面であって上流弁を構成する筒状外周面，
１２ｇは椀状部１２ｅの頂点部より下流側に起立する態様の中棒，
１２ｈは中棒１２ｇの先端周囲に設けられ下流弁を構成する下流側スカート部，
１２ｉは肩カバー１２の外周壁内側に間欠的に設けられた内向き係止部，
１２ｊは仕切り部から起立し後述の可動栓１３との間を液密にシールする外側円筒部（図１～図９），
１２ｋは仕切り部から起立した円筒部の端部に設けられて可動栓１３との間を液密にシールする外側スカート部（図１０，図１１），
１２ｍは中棒１２ｇの先端に設けられ後述の吐出弁座１３ｍと吐出弁を構成する吐出弁体（図７），
１２ｎは中棒１２ｇと吐出弁体１２ｍとの間に設けられて吐出弁体１２ｍを吐出弁座１３ｍに付勢する弾性部（図７），
１３は肩カバー１２に対し上下方向に摺動する可動栓，
１３ａは吐出モードに移行するための操作部であって、利用者が塗布対象に押し当てる当接部，
１３ｂは内容物の吐出口，
１３ｃは外周の段部が後述の引上げ係合部１４ｂと係合するフランジ部，
１３ｄは上流側筒状内周面１３ｄの上流側端部に設けられた上流側筒状内周面，
１３ｅは上流弁を構成する上流側スカート部，
１３ｆは上流側筒状内周面１３ｄに連続するかたちで設けられ下流弁を構成する下流側筒状内周面，
１３ｇは下流弁を構成する溝部，
１３ｈは内向き係止部１２ｉに当接して可動栓１３が抜けるのを防止する外向き係止部（図１～図５，図９～図１１），
１３ｉは肩カバー１２と可動栓１３との間を液密にシールする外側スカート部（図１～図９），
１３ｊは肩カバー１２と可動栓１３との間を液密にシールする外側円筒部（図１０，１１），
１３ｋは底部が円錐状のカップ形状であって底部中央に吐出口１３ｂを有しその外側周囲が当接部１３ａとなるノズルチップ（図６～図８），
１３ｍはノズルチップ１３ｋの吐出口１３ｂの上流側に設けられ吐出弁を構成する吐出弁座（図７，図８），
１３ｎはノズルチップ１３ｋの円筒部外周に設けられた引上げ環状凸部（図７，図８），
１４は容器本体１１に螺合する鞘状のキャップ，
１４ａはキャップ１４の内周面下端側に設けられて容器本体１１の外向き螺合部１１ｂと螺合する内向き螺合部，
１４ｂはキャップ１４の天井面に設けられてキャップ１４を容器本体１１から取り外すときに可動栓１３を一緒に移動させて計量モードに移行する引上げ係合部，
Ａは可動栓１３に設けられた上流側筒状内周面１３ｄおよびこれに続く下流側筒状内周面１３ｆと、固定栓に設けられ上流側筒状内周面１３ｄを摺動し下流側の面中央が膨出した上流側ピストン１２ｄおよび下流側筒状内周面１３ｆを摺動する下流側スカート部１２ｈとで区画された定量室，
Ｂは当接部１３ａを押し当てる塗布対象面，
をそれぞれ示している。 Here, in FIGS. 1 to 11,
11 is a bottle-shaped container body for containing liquid contents,
11a is an annular convex portion provided on the outer peripheral surface of the opening of the container body 11;
11b is an outwardly threaded portion provided on the outer peripheral surface of the opening of the container body 11;
A shoulder cover 12 is fitted to the opening of the container body 11 in a liquid-tight manner to form a passage for the contents to be discharged.
12a is an annular recessed portion that engages with the annular protruding portion 11a of the container body 11 and resists external forces that accompany removal of the cap 14, which will be described later;
12b is a hanging cylindrical portion that is liquid-tightly engaged with the inner circumferential surface of the opening of the container body 11;
12c is a communication port provided in the partition between the upstream side and the downstream side, which communicates between the inside of the container body 11 and the upstream valve;
12d is an upstream piston provided in the center of the partition portion and bulging from the container body 11 side toward the downstream side;
12e is a downstream portion of the upstream piston 12d, which is a bulging bowl-shaped portion;
12f is a cylindrical outer peripheral surface continuing from the bowl-shaped portion 12e of the upstream piston 12d to the upstream side and constituting an upstream valve;
12g is a center rod that stands upright downstream from the apex of the bowl-shaped portion 12e;
12h is a downstream skirt portion provided around the tip of the center rod 12g and constituting a downstream valve;
12i denotes inward locking portions intermittently provided on the inside of the outer peripheral wall of the shoulder cover 12;
12j is an outer cylindrical portion (FIGS. 1 to 9) that rises from the partition portion and provides a liquid-tight seal between it and the movable plug 13 described below.
12k is an outer skirt portion (FIGS. 10 and 11) provided at the end of the cylindrical portion rising from the partition portion and providing a liquid-tight seal between the movable plug 13 and the outer skirt portion.
12m is a discharge valve body (FIG. 7) that is provided at the tip of the center rod 12g and constitutes a discharge valve together with a discharge valve seat 13m (described later).
12n is an elastic portion (FIG. 7) provided between the center rod 12g and the discharge valve body 12m to bias the discharge valve body 12m against the discharge valve seat 13m.
13 is a movable plug that slides up and down relative to the shoulder cover 12;
13a is an operation part for shifting to the discharge mode, and is a contact part that the user presses against the object to be coated;
13b is a discharge port for the contents,
13c is a flange portion whose outer circumferential step engages with a lifting engagement portion 14b described later;
13d is an upstream cylindrical inner peripheral surface provided at the upstream end of the upstream cylindrical inner peripheral surface 13d;
13e is an upstream skirt portion constituting the upstream valve;
13f is a downstream cylindrical inner peripheral surface that is provided in a manner that is continuous with the upstream cylindrical inner peripheral surface 13d and that constitutes a downstream valve;
13g is a groove portion constituting the downstream valve;
13h is an outward locking portion that abuts against the inward locking portion 12i to prevent the movable plug 13 from coming off (FIGS. 1 to 5, 9 to 11).
13i is an outer skirt portion (FIGS. 1 to 9) that provides a liquid-tight seal between the shoulder cover 12 and the movable plug 13;
13j is an outer cylindrical portion that provides a liquid-tight seal between the shoulder cover 12 and the movable plug 13 (FIGS. 10 and 11);
13k is a nozzle tip (FIGS. 6 to 8) having a conical cup-shaped bottom, a discharge port 13b at the center of the bottom, and a contact portion 13a around the outer periphery of the discharge port 13b;
13m is a discharge valve seat (FIGS. 7 and 8) that is provided upstream of the discharge port 13b of the nozzle tip 13k and constitutes a discharge valve;
13n is a raised annular protrusion provided on the outer periphery of the cylindrical part of the nozzle tip 13k (FIGS. 7 and 8).
14 is a sheath-shaped cap that is screwed onto the container body 11;
14a is an inward threaded portion provided on the lower end side of the inner circumferential surface of the cap 14 and threadedly engaged with the outward threaded portion 11b of the container body 11;
14b is a lifting engagement portion provided on the ceiling surface of the cap 14, which moves the movable plug 13 together when the cap 14 is removed from the container body 11, thereby shifting to a measurement mode;
A is a metering chamber defined by an upstream cylindrical inner peripheral surface 13d provided on the movable plug 13 and a downstream cylindrical inner peripheral surface 13f connected thereto, an upstream piston 12d provided on the fixed plug, which slides on the upstream cylindrical inner peripheral surface 13d and has a bulged center on the downstream side, and a downstream skirt portion 12h which slides on the downstream cylindrical inner peripheral surface 13f.
B is the surface to be coated against which the contact portion 13a is pressed,
are shown respectively.

　ここで、肩カバー１２，可動栓１３，中棒１２ｇ，吐出弁体１２ｍおよびキャップ１４は例えばポリプロピレン，ポリエチレン，ポリアセタール，ナイロン，ポリブチレンテレフタレートなどからなるプラスチック製のものである。 Here, the shoulder cover 12, movable stopper 13, center rod 12g, discharge valve body 12m, and cap 14 are made of plastic, such as polypropylene, polyethylene, polyacetal, nylon, or polybutylene terephthalate.

　また、容器本体１１は例えばプラスチック製，金属製，ガラスのものであり、弾性部１２ｎは例えばプラスチック製，金属製のものであある。 Furthermore, the container body 11 is made of, for example, plastic, metal, or glass, and the elastic portion 12n is made of, for example, plastic or metal.

　図１は、計量吐出機構の不使用モードを示している。 Figure 1 shows the non-use mode of the metered dispensing mechanism.

　キャップ１４が容器本体１１に螺合して、可動栓１３を肩カバー１２の側に押し付けている。容器本体１１と定量室Ａとの間の上流弁を構成する上流側ピストン１２ｄの筒状外周面１２ｆと上流側筒状内周面１３ｄの上流側スカート部１３ｅとは液密に当接して上流弁は閉状態となっている。また、定量室Ａと吐出口１３ｂとの間の下流弁を構成する下流側スカート部１２ｈは溝部１３ｇのある下流側筒状内周面１３に当接しているので溝部１３ｇが下流側スカート部１２ｈの上下を迂回するかたちで連通して下流弁は開状態となっている。キャップ１４の引上げ係合部１４ｂはフランジ部１３ｃの下側に係合している。 The cap 14 is threaded onto the container body 11, pressing the movable stopper 13 against the shoulder cover 12. The upstream valve between the container body 11 and the metering chamber A is formed by the cylindrical outer surface 12f of the upstream piston 12d and the upstream skirt portion 13e of the upstream cylindrical inner surface 13d, which are in liquid-tight contact, leaving the upstream valve closed. The downstream skirt portion 12h, which forms the downstream valve between the metering chamber A and the discharge port 13b, is in contact with the downstream cylindrical inner surface 13, which has the groove 13g. Therefore, the groove 13g bypasses the top and bottom of the downstream skirt portion 12h, providing communication, leaving the downstream valve open. The lifting engagement portion 14b of the cap 14 engages the underside of the flange portion 13c.

　この肩カバー１２と可動栓１３との位置関係は図５に示す吐出モードと同じである。 The positional relationship between the shoulder cover 12 and the movable stopper 13 is the same as in the discharge mode shown in Figure 5.

　この状態では容器本体１１に収容された内容物は定量室Ａに流入しない。また下流弁が開状態であっても吐出口１３ｂはキャップ１４が当接部１３ａに当接して閉鎖されているので、吐出口１３ｂの内部や定量室Ａに残留内容物は吐出口１３ｂから流出しキャップ１４と容器本体１１の隙間から漏れ出して外部を汚染することはない。 In this state, the contents contained in the container body 11 do not flow into the metering chamber A. Furthermore, even if the downstream valve is open, the discharge port 13b is closed by the cap 14 abutting against the abutment portion 13a, so any contents remaining inside the discharge port 13b or in the metering chamber A will not flow out from the discharge port 13b or leak through the gap between the cap 14 and the container body 11 and contaminate the outside.

　この状態からキャップ１４を容器本体１１に対し図示矢印のように回動すると、螺合している外向き螺合部１１ｂと内向き螺合部１４ａの作用でキャップ１４が容器本体１１から上方に外れていく。
　このときフランジ部１３ｃに係合する引上げ係合部１４ｂの作用によって可動栓１３もキャップ１４と一体となって上動していく。 When the cap 14 is rotated from this state relative to the container body 11 as shown by the arrow in the figure, the cap 14 comes off upward from the container body 11 due to the action of the engaged outward threaded portion 11b and inward threaded portion 14a.
At this time, the movable plug 13 also moves upward together with the cap 14 due to the action of the lifting engagement portion 14b which engages with the flange portion 13c.

　図１の計量吐出機構の各部の寸法・容積は、例えば、
下流側筒状内周面１３ｆの直径は１０．６ミリメートル、
筒状外周面１２ｆの直径は下流側筒状内周面１３ｆと同等、
肩カバー１２と可動栓１３との移動可能距離は６ミリメートル、
肩カバー１２と可動栓１３とが計量モードとなって最も離れた状態から定量室Ａの上流弁が閉状態となる距離は３ミリメートル、
定量室Ａの下流弁が開状態となってから肩カバー１２と可動栓１３とが上下方向に当接した状態となる距離は３ミリメートル、
定量室Ａの容積は最大約１ミリリットルとなっている。 The dimensions and volumes of the components of the metering and dispensing mechanism shown in FIG. 1 are as follows:
The diameter of the downstream cylindrical inner peripheral surface 13f is 10.6 mm.
The diameter of the cylindrical outer peripheral surface 12f is equal to the diameter of the downstream cylindrical inner peripheral surface 13f.
The movable distance between the shoulder cover 12 and the movable stopper 13 is 6 mm.
The distance from the farthest state between the shoulder cover 12 and the movable plug 13 in the metering mode until the upstream valve of the metering chamber A is closed is 3 mm.
The distance at which the shoulder cover 12 and the movable stopper 13 come into contact with each other in the vertical direction after the downstream valve of the metering chamber A is opened is 3 mm.
The maximum volume of the metering chamber A is approximately 1 milliliter.

　図２は、図１の計量吐出機構のキャップ１４を利用者が容器本体１１に対して回動し、キャップ１４が可動栓１３とともに上動した計量モードを示している。 Figure 2 shows the metering mode in which the user rotates the cap 14 of the metering and dispensing mechanism in Figure 1 relative to the container body 11, causing the cap 14 to move upward together with the movable stopper 13.

　この状態から、さらにキャップ１４を図示矢印のように回動すると上動して容器本体１１との螺合は完全に外れるが、可動栓１３は内向き係止部１２ｉと外向き係止部１３ｈとが当接して上動できなくなり、フランジ部１３ｃと引上げ係合部１４ｂの係合が外れる。 From this state, if the cap 14 is further rotated as shown by the arrow in the figure, it will move upward and completely disengage from the container body 11, but the movable stopper 13 will no longer be able to move upward as the inward locking portion 12i and outward locking portion 13h come into contact, and the flange portion 13c will disengage from the lift-up engagement portion 14b.

　そのため、環状凸部１１ａと環状凹部１２ａの係合はフランジ部１３ｃと引上げ係合部１４ｂの係合より外れにくく設定されている。 As a result, the engagement between the annular protrusion 11a and the annular recess 12a is designed to be less likely to come off than the engagement between the flange portion 13c and the lift-up engagement portion 14b.

　図３は、図２の計量吐出機構のキャップを外し、上下を反転した倒立状態を示す説明図である。 Figure 3 is an explanatory diagram showing the metering and dispensing mechanism of Figure 2 in an inverted state with the cap removed.

　容器本体１１の内容物は連通口１２ｃと上流弁である筒状外周面１２ｆと上流側スカート部１３ｅの間を介して実線矢印のように定量室Ａに流入し、定量室Ａの空気は破線矢印のように内容物とは逆方向で容器本体１１へ流出していく。 The contents of the container body 11 flow into the metering chamber A as shown by the solid arrow through the communication port 12c and the space between the upstream valve, the cylindrical outer surface 12f, and the upstream skirt portion 13e, while the air in the metering chamber A flows out into the container body 11 in the opposite direction to the contents, as shown by the dashed arrow.

　上流側ピストン１２ｄの下面は下向きに膨出した態様の椀状部１２ｅとなっており、また定量室Ａを区画する最上部の上流側筒状内周面１３ｄの上端部が解放されているので、空気は浮上する際に椀状部１２ｅで周囲に追いやられこの上端部へ自然と案内されて定量室Ａから排出する。 The underside of the upstream piston 12d forms a downwardly bulging bowl-shaped portion 12e, and the upper end of the uppermost upstream cylindrical inner surface 13d that defines the metering chamber A is open. As the air rises, it is pushed to the periphery by the bowl-shaped portion 12e and is naturally guided to the upper end, where it is expelled from the metering chamber A.

　また、中棒１２ｇも椀状部１２ｅの最も膨出した下面中央に設けられているので、空気の浮上を妨げることがない。 Furthermore, the center rod 12g is located at the center of the most bulging underside of the bowl-shaped portion 12e, so it does not interfere with the air floating up.

　このように、倒立状態にしたときに定量室Ａの空気と容器本体１１の内容物が確実に置換するので、定量室Ａで内容物のみが貯留され、計量ごとの吐出内容物の定量性が担保される。 In this way, when the container is inverted, the air in metering chamber A is reliably replaced with the contents of the container body 11, so only the contents are stored in metering chamber A, ensuring the quantity of contents dispensed with each measurement.

　図４は図３の計量吐出機構の当接部１３ａを塗布対象面Ｂに押し当てて内容物の計量が完了した状態を示す説明図である。 Figure 4 is an explanatory diagram showing the state in which the contact portion 13a of the metering and dispensing mechanism in Figure 3 has been pressed against the application target surface B and the metering of the contents has been completed.

　この状態では、上流弁・下流弁ともに閉状態となり、定量室Ａは容器本体１１の内部や吐出口１３ｂから独立した空間域となって内容物を確実に計量する。 In this state, both the upstream and downstream valves are closed, and metering chamber A becomes a spatial area independent of the interior of container body 11 and discharge port 13b, ensuring reliable metering of the contents.

　また、上流弁、下流弁が同時に開状態とならないので内容物が容器本体１１から定量室Ａを通じて吐出口１３ｂに直接流出することもない。 Furthermore, since the upstream valve and downstream valve are not open at the same time, the contents do not flow directly from the container body 11 through the metering chamber A to the discharge port 13b.

　また、下流側筒状内周面１３ｆの断面積と筒状外周面１２ｆの断面積とがほぼ同じなので上流弁、下流弁ともに閉状態のまま上流側ピストン１２ｄや下流側スカート部１２ｈが移動しても定量室Ａの容積が変化しない。このため可動栓１３の肩カバー１２に対する移動可能な距離のうち、上流弁・下流弁ともに閉状態の距離を長く設定できるので、弁の劣化に対する耐久性を向上することができる。 Furthermore, because the cross-sectional area of the downstream cylindrical inner surface 13f and the cross-sectional area of the cylindrical outer surface 12f are approximately the same, the volume of the metering chamber A does not change even if the upstream piston 12d or downstream skirt portion 12h moves while both the upstream valve and downstream valve are closed. Therefore, the movable distance of the movable plug 13 relative to the shoulder cover 12 can be set long when both the upstream valve and downstream valve are closed, thereby improving the durability of the valve against deterioration.

　図５は図４の計量吐出機構の当接部１３ａを塗布対象面Ｂにさらに押し当てて吐出口から内容物が流出可能となった吐出モードを示す説明図である Figure 5 is an explanatory diagram showing the dispensing mode in which the contact portion 13a of the metered dispensing mechanism in Figure 4 is further pressed against the application target surface B, allowing the contents to flow out of the dispensing port.

　この状態では、下流弁が開状態となり、定量室Ａの内容物は図中の実線矢印のように溝部１３ｇを通じて吐出口１３ｂに流出できる。利用者が計量機構を上下に振ったり、当接部１３ａを塗布対象面Ｂに当てたりすることで定量室Ａの内容物を吐出しながら塗布する。 In this state, the downstream valve is open, allowing the contents of metering chamber A to flow out of discharge port 13b through groove 13g as shown by the solid arrow in the figure. The user can apply the contents of metering chamber A by shaking the metering mechanism up and down or by pressing contact part 13a against the surface to be coated B, thereby discharging and applying the contents of metering chamber A.

　下流側筒状内周面１３ｆが設けられた円筒部の内部に下流弁が収まっているのでこの円筒部の外周側に内容物が直接的に触れたり漏洩したりすることがない。また、この円筒部の外周側はシール面の機能を担っていないので自由な形状をとることができる。 The downstream valve is housed inside the cylindrical portion provided with the downstream cylindrical inner surface 13f, so the contents do not come into direct contact with the outer periphery of this cylindrical portion and do not leak. Furthermore, because the outer periphery of this cylindrical portion does not function as a sealing surface, it can take any shape.

　この後、計量吐出機構を正立状態に戻してからキャップ１４を容器本体１１に螺合させることにより図１の不使用モードに復帰する。 After this, the metering and dispensing mechanism is returned to its upright position, and the cap 14 is screwed onto the container body 11 to return to the non-use mode shown in Figure 1.

図６は、本件発明のノズルチップを備えた計量吐出機構の不使用モードを示す説明図である。 Figure 6 is an explanatory diagram showing the unused mode of the metering and dispensing mechanism equipped with the nozzle tip of the present invention.

　図１のフランジ部１３ｃの代わりにノズルチップ１３ｋを設けて、ノズルチップ１３ｋに当接部１３ａや吐出口１３ｂを設けている。 Instead of the flange portion 13c in Figure 1, a nozzle tip 13k is provided, and the nozzle tip 13k is provided with a contact portion 13a and a discharge port 13b.

　吐出口１３ｂの内周側を引上げ係合部１４ｂと係合させているので、挿入される引上げ係合部１４ｂの径を適切に設定することで、キャップ１４からの押し付けによらず吐出口１３ｂを安定して閉鎖できる。 The inner periphery of the discharge port 13b engages with the lifting engagement portion 14b, so by appropriately setting the diameter of the inserted lifting engagement portion 14b, the discharge port 13b can be stably closed without being pressed down by the cap 14.

　図７は、本件発明の吐出弁を備えた計量吐出機構の不使用モードを示す説明図である。 Figure 7 is an explanatory diagram showing the non-use mode of the metering and dispensing mechanism equipped with the dispensing valve of the present invention.

　図６の計量吐出機構の態様に加え、ノズルチップ１３ｋに引上げ環状凸部１３ｎ設け、下流側スカート部１２ｈの上に弾性部１２ｎと吐出弁体１２ｍを設けてノズルチップ１３ｋの吐出弁座１３ｍとともに吐出口１３ｂに吐出弁を構成している。 In addition to the configuration of the metered discharge mechanism shown in Figure 6, a raised annular convex portion 13n is provided on the nozzle tip 13k, and an elastic portion 12n and a discharge valve body 12m are provided on the downstream skirt portion 12h, which, together with the discharge valve seat 13m of the nozzle tip 13k, form a discharge valve at the discharge port 13b.

　この不使用モードや、肩カバー１２と可動栓１３の相対位置が同じ状態の吐出モードにおいては、吐出弁体１２ｍが弾性部１２ｎの付勢力で吐出弁座１３ｍに当接し吐出弁は閉状態となる。 In this unused mode, or in the discharge mode in which the shoulder cover 12 and movable plug 13 remain in the same relative positions, the discharge valve body 12m abuts against the discharge valve seat 13m due to the biasing force of the elastic portion 12n, and the discharge valve is in a closed state.

　この状態では利用者が当接部１３ａを塗布対象面Ｂに押し付けることで吐出口１３ｂから突出し吐出弁体１２ｍが押し込まれ、吐出弁座１３ｍから離間し吐出弁が開状態となって内容物が吐出可能になる。 In this state, when the user presses the contact portion 13a against the surface B to be coated, it protrudes from the discharge outlet 13b, pushing in the discharge valve body 12m and separating it from the discharge valve seat 13m, opening the discharge valve and allowing the contents to be dispensed.

　図８は、図７の計量吐出機構のキャップを外し計量モードに移行した状態を示す説明図である。 Figure 8 is an explanatory diagram showing the state in which the cap of the metering and dispensing mechanism in Figure 7 has been removed and the device has switched to metering mode.

　図７の状態からわずかに可動栓１３が上動すると弾性部１２ｎはそれ以上伸びることはなく吐出弁体１２ｍが吐出弁座１３ｍより離間し吐出弁は開状態となる When the movable plug 13 moves slightly upward from the position shown in Figure 7, the elastic portion 12n does not stretch any further, and the discharge valve body 12m separates from the discharge valve seat 13m, opening the discharge valve.

　この計量モードの状態で利用者が使用を中断し、キャップ１４を容器本体１１に取り付けて可動栓１３を下動させても吐出絵弁は開状態のままを維持するので下流弁と吐出弁との間の空間が圧縮されない。そのため可動栓１３の移動が妨げられたり、下流弁が開状態となったときに残留内容物の急激な逆流が生じたりしない。 If the user discontinues use in this metering mode, attaches the cap 14 to the container body 11, and moves the movable stopper 13 downward, the discharge valve remains open, so the space between the downstream valve and the discharge valve is not compressed. This prevents the movement of the movable stopper 13 from being impeded, and prevents the remaining contents from suddenly flowing back when the downstream valve opens.

図９は、本件発明の固定栓を一体成型した計量吐出機構の不使用モードを示す説明図であり、図１の中棒１２ｇが上流側ピストン１２ｄに一体成型されている。 Figure 9 is an explanatory diagram showing the unused mode of the metering and dispensing mechanism of the present invention, in which the fixed stopper is integrally molded, in which the center rod 12g of Figure 1 is integrally molded with the upstream piston 12d.

　中棒１２ｇが上流側ピストン１２ｄに一体成型されているため製造コストを低減できる。 The center rod 12g is integrally molded with the upstream piston 12d, reducing manufacturing costs.

　また、筒状外周面１２ｆの断面積より下流側筒状内周面１３ｆの断面積が小さいため、当接部１３ａを塗布対象面Ｂに押し付けたときに下流弁が開いたあとの可動栓１３の移動で定量室Ａの容積が小さくなり、利用者が振り出さなくても一定量が塗布対象面Ｂに吐出される。 Furthermore, because the cross-sectional area of the downstream cylindrical inner peripheral surface 13f is smaller than the cross-sectional area of the cylindrical outer peripheral surface 12f, when the contact portion 13a is pressed against the application surface B, the downstream valve opens and the movable stopper 13 moves, reducing the volume of the metered chamber A, so that a fixed amount is dispensed onto the application surface B without the user having to shake it.

　下流側筒状内周面１３ｆの断面積を小さくすることで肩カバー１２を製造するときに中棒１２ｇや下流側スカート部１２ｈの一体成型が容易になる。 By reducing the cross-sectional area of the downstream cylindrical inner surface 13f, it becomes easier to integrally mold the center rod 12g and downstream skirt portion 12h when manufacturing the shoulder cover 12.

　図９の計量吐出機構の各部の寸法・容積は、例えば、
下流側筒状内周面１３ｆの直径は５．２ミリメートル、
筒状外周面１２ｆの直径は１０．７ミリメートル、
肩カバー１２と可動栓１３との移動可能距離は６ミリメートル、
肩カバー１２と可動栓１３とが計量モードとなって最も離れた状態から定量室Ａの上流弁が閉状態となる距離は３ミリメートル、
定量室Ａの下流弁が開状態となってから肩カバー１２と可動栓１３とが上下方向に当接した状態となる距離は３ミリメートル、
定量室Ａの容積は最大約１ミリリットルとなっている。 The dimensions and volumes of the components of the metering and dispensing mechanism shown in FIG. 9 are as follows:
The diameter of the downstream cylindrical inner peripheral surface 13f is 5.2 mm.
The diameter of the cylindrical outer surface 12f is 10.7 mm.
The movable distance between the shoulder cover 12 and the movable stopper 13 is 6 mm.
The distance from the farthest state between the shoulder cover 12 and the movable plug 13 in the metering mode until the upstream valve of the metering chamber A is closed is 3 mm.
The distance at which the shoulder cover 12 and the movable stopper 13 come into contact with each other in the vertical direction after the downstream valve of the metering chamber A is opened is 3 mm.
The maximum volume of the metering chamber A is approximately 1 milliliter.

　これによって定量室Ａに１ミリリットルの内容物が計量され、塗布対象面Ｂなどによって当接部１３ａが押されて肩カバー１２と可動栓１３とが上下方向に当接した状態となるまでに全体の１／５量である０．２ミリリットルが定量室Ａの容積変化で吐出される。その後、計量機構を上下に振ることなどで定量室Ａから残りの０．８ミリリットルが吐出される。 This measures 1 milliliter of contents into metering chamber A, and by the time the contact portion 13a is pressed by the application target surface B or the like and the shoulder cover 12 and the movable stopper 13 come into contact in the vertical direction, 0.2 milliliters, or 1/5 of the total amount, is dispensed due to the change in volume of metering chamber A. The remaining 0.8 milliliters are then dispensed from metering chamber A by shaking the metering mechanism up and down, etc.

図１０は、本件発明の細身化した計量吐出機構の不使用モードを示す説明図であり、図１の外側円筒部１２ｊと外側スカート部１３ｉの代わりに外側スカート部１２ｋと外側円筒部１３ｊが設けられている。 Figure 10 is an explanatory diagram showing the unused mode of the slim metering and dispensing mechanism of the present invention, in which outer skirt portion 12k and outer cylindrical portion 13j are provided instead of outer cylindrical portion 12j and outer skirt portion 13i of Figure 1.

　図１では上流側スカート部１３ｅと外側スカート部１３ｉとの２つのシール用のスカート部が内周・外周のかたちで隣接して可動栓１３に設けられているため、潤滑剤塗布工程の共通化のメリットがある反面、機能を保持したままこれ以上狭くすることは難しい。 In Figure 1, two sealing skirt portions, the upstream skirt portion 13e and the outer skirt portion 13i, are provided adjacent to each other on the inner and outer periphery of the movable plug 13. While this has the advantage of allowing for a common lubricant application process, it is difficult to make them any narrower while maintaining functionality.

　しかし、図１０のように外側スカート部１３ｉを外側スカート部１２ｋとして肩カバー１２に設けることで、上流側スカート部１３ｅと外側スカート部１２ｋとの間隔を狭くすることに併せて可動栓１３の外周部と外側円筒部１３ｊとを兼ねることも可能となり、計量吐出機構を細身化することができる。 However, by providing the outer skirt portion 13i as the outer skirt portion 12k on the shoulder cover 12 as shown in Figure 10, the gap between the upstream skirt portion 13e and the outer skirt portion 12k can be narrowed, and the outer periphery of the movable plug 13 can also serve as the outer cylindrical portion 13j, making it possible to slim down the metered dispensing mechanism.

図１１は、本件発明の細身化しかつ固定栓を一体成型した計量吐出機構の不使用モードを示す説明図である。 Figure 11 is an explanatory diagram showing the unused mode of the slim metering and dispensing mechanism of the present invention, which has an integrally molded fixed stopper.

　図９と同様に中棒１２ｇが上流側ピストン１２ｄに一体成型され、図１０と同様に外側スカート部１２ｋと外側円筒部１３ｊが設けられていて、部品点数の低減化と計量吐出機構の細身化の両方の特徴を備えている。 As in Figure 9, the center rod 12g is integrally molded with the upstream piston 12d, and as in Figure 10, an outer skirt portion 12k and an outer cylindrical portion 13j are provided, providing the features of both a reduced number of parts and a slimmer metering and dispensing mechanism.

　本発明が以上の実施形態に限定されないことは勿論であり、
(11)外向き螺合部１１ｂを容器本体１１ではなく肩カバー１２の外周面に設ける、
(12)下流側筒状内周面１３ｆの周方向における溝部１３ｇの幅や数を増やして溝部１３ｇ同士の間の下流側筒状内周面１３ｆをリブ状にする、
(13)瓶状の容器本体１１の代わりにチューブ状容器やパウチ容器などの可とう性容器を用いる、
(14)キャップ１４の天面を底部とするまたは容器本体１１を吊下げるなどして常に容器本体１１が肩カバー１２に対し上側の倒立状態で使用する、
ようにしてもよい。 It goes without saying that the present invention is not limited to the above embodiments.
(11) The outward threaded portion 11b is provided on the outer peripheral surface of the shoulder cover 12, not on the container body 11.
(12) The width and number of the grooves 13g in the circumferential direction of the downstream-side cylindrical inner peripheral surface 13f are increased to form ribs on the downstream-side cylindrical inner peripheral surface 13f between the grooves 13g.
(13) A flexible container such as a tube-shaped container or a pouch container is used instead of the bottle-shaped container body 11.
(14) The container body 11 is always used in an inverted state with the top surface of the cap 14 as the bottom or the container body 11 is hung upside down relative to the shoulder cover 12.
This may be done.

　本発明が適用される製品としては、洗浄剤，清掃剤，制汗剤，冷却剤，筋肉消炎剤，ヘアスタイリング剤，ヘアトリートメント剤，染毛剤，育毛剤，化粧品，シェービングフォーム，食品，医薬品，医薬部外品，塗料，園芸用剤，忌避剤（殺虫剤），クリーナー，消臭剤，洗濯のり，ウレタンフォーム，消火器，接着剤，潤滑剤などの各種用途のものがある。 Products to which this invention can be applied include detergents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyes, hair growth agents, cosmetics, shaving foam, food, pharmaceuticals, quasi-drugs, paints, gardening agents, repellents (insecticides), cleaners, deodorizers, laundry starch, urethane foam, fire extinguishers, adhesives, and lubricants.

　容器本体１１に収容される内容物としては液状形態のものを用いる。内容物に配合される成分は例えば、粉状物，油成分，アルコール類，界面活性剤，高分子化合物，各用途に応じた有効成分，水などである。 The contents contained in the container body 11 are in liquid form. The ingredients contained in the contents include, for example, powders, oils, alcohols, surfactants, polymeric compounds, active ingredients for each application, and water.

　粉状物としては、金属塩類粉末，無機物粉末や樹脂粉末などを用いる。例えば、タルク，カオリン，アルミニウムヒドロキシクロライド（アルミ塩），アルギン酸カルシウム，金粉，銀粉，雲母，炭酸塩，硫酸バリウム，セルロース，これらの混合物などを用いる。 Powdered materials include metal salt powders, inorganic powders, and resin powders. Examples include talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonates, barium sulfate, cellulose, and mixtures of these.

　油成分としては、シリコーン油，パーム油，ユーカリ油，ツバキ油，オリーブ油，ホホバ油，パラフィン油，ミリスチン酸，パルミチン酸，ステアリン酸，リノール酸，リノレン酸などを用いる。 Oil ingredients include silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, and linolenic acid.

　アルコール類としては、エタノールなどの１価の低級アルコール，ラウリルアルコールなどの１価の高級アルコール，エチレングリコール，グリセリン，1,3－ブチレングリコールなどの多価アルコールなどを用いる。 Alcohols used include monohydric lower alcohols such as ethanol, monohydric higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

　界面活性剤としては、ラウリル硫酸ナトリウムなどのアニオン性界面活性剤、ポリオキシエチレンオレイルエーテルなどの非イオン性界面活性剤、ラウリルジメチルアミノ酢酸ベタインなどの両性界面活性剤、塩化アルキルトリメチルアンモニウムなどのカチオン性界面活性剤などを用いる。 Surfactants used include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryl dimethylaminoacetate betaine, and cationic surfactants such as alkyltrimethylammonium chloride.

　高分子化合物としては、メチルセルロース，ゼラチン，デンプン，カゼイン，ヒドロキシエチルセルロース，キサンタンガム，カルボキシビニルポリマーなどを用いる。 Examples of polymeric compounds used include methylcellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, and carboxyvinyl polymer.

　各用途に応じた有効成分としては、サリチル酸メチル，インドメタシンなどの消炎鎮痛剤、安息香酸ナトリウム，クレゾールなどの除菌剤、ピレスロイド，ジエチルトルアミドなどの害虫忌避剤、パラフェノールスルホン酸亜鉛などの制汗剤、カンフル，メントールなどの清涼剤、エフェドリン，アドレナリンなどの抗喘息薬、スクラロース，アスパルテームなどの甘味料、エポキシ樹脂，ウレタンなどの接着剤や塗料、パラフェニレンジアミン，アミノフェノールなどの染料，過酸化水素水などの酸化剤、リン酸二水素アンモニウム，炭酸水素ナトリウム・カリウムなどの消火剤などを用いる。 Active ingredients for each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as pyrethroids and diethyltoluamide, antiperspirants such as zinc paraphenolsulfonate, cooling agents such as camphor and menthol, anti-asthma medications such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, oxidizers such as hydrogen peroxide, and fire extinguishers such as ammonium dihydrogen phosphate and sodium/potassium bicarbonate.

　さらに、上記内容物以外の、懸濁剤，紫外線吸収剤，乳化剤，保湿剤，酸化防止剤、金属イオン封鎖剤なども用いることができる。 In addition to the above ingredients, suspending agents, UV absorbers, emulsifiers, moisturizers, antioxidants, and sequestering agents may also be used.

１１：容器本体
１１ａ：環状凸部
１１ｂ：外向き螺合部
１２：肩カバー
１２ａ：環状凹部
１２ｂ：垂下筒状部
１２ｃ：連通口
１２ｄ：上流側ピストン
１２ｅ：椀状部
１２ｆ：筒状外周面
１２ｇ：中棒
１２ｈ：下流側スカート部
１２ｉ：内向き係止部
１２ｊ：外側円筒部
１２ｋ：外側スカート部
１２ｍ：吐出弁体
１２ｎ：弾性部
１３：可動栓
１３ａ：当接部
１３ｂ：吐出口
１３ｃ：フランジ部
１３ｄ：上流側筒状内周面
１３ｅ：上流側スカート部
１３ｆ：下流側筒状内周面
１３ｇ：溝部
１３ｈ：外向き係止部
１３ｉ：外側スカート部
１３ｊ：外側円筒部
１３ｋ：ノズルチップ
１３ｍ：吐出弁座
１３ｎ：引上げ環状凸部
１４：キャップ
１４ａ：内向き螺合部
１４ｂ：引上げ係合部
Ａ：定量室
Ｂ：塗布対象面 11: Container body 11a: Annular convex portion 11b: Outward screw portion 12: Shoulder cover 12a: Annular concave portion 12b: Hanging cylindrical portion 12c: Communication port 12d: Upstream piston 12e: Bowl-shaped portion 12f: Cylindrical outer peripheral surface 12g: Center rod 12h: Downstream skirt portion 12i: Inward locking portion 12j: Outer cylindrical portion 12k: Outer skirt portion 12m: Discharge valve body 12n: Elastic portion 13: Movable stopper 13a: Contact portion 13b: Discharge port 13c: Flange portion 13d: Upstream cylindrical inner peripheral surface 13e: Upstream skirt portion 13f: Downstream cylindrical inner peripheral surface 13g: Groove portion 13h: Outward locking portion 13i: Outer skirt portion 13j: Outer cylindrical portion 13k: Nozzle tip 13m: Discharge valve seat 13n: Pull-up annular convex portion 14: Cap 14a: Inward screw portion 14b: Pull-up engagement portion A: Metering chamber B: Surface to be coated

Claims

a movable stopper that is operable by a user to switch between a measurement mode in which the upstream valve is open and the downstream valve is closed and a discharge mode in which the upstream valve is closed and the downstream valve is open, depending on the relative position of the movable stopper operated by a user;
The metering chamber is
the movable plug is partitioned by an upstream-side cylindrical inner peripheral surface and a downstream-side cylindrical inner peripheral surface connected thereto, an upstream-side piston provided in the fixed plug and sliding on the upstream-side cylindrical inner peripheral surface with a bulged center on the downstream side, and a downstream-side piston sliding on the downstream-side cylindrical inner peripheral surface,
The upstream valve
the upstream-side cylindrical inner circumferential surface and the upstream-side piston are in a closed state when they are in liquid-tight contact with each other and in an open state when they are partially or completely separated from each other,
The downstream valve
the downstream-side cylindrical inner circumferential surface and the downstream-side piston are in a closed state when they are in liquid-tight contact with each other and in an open state when they are partially or completely separated from each other,
The discharge port is
It has a contact part around it that the user presses against the surface to be coated,
When the mode is shifted from the discharge mode to the metering mode, the downstream valve is closed and then the upstream valve is opened,
When the mode is shifted from the metering mode to the discharge mode, the upstream valve is closed and then the downstream valve is opened.
A metered dispensing container characterized by:

The upstream piston is
It consists of a bowl-shaped portion that bulges out toward the downstream side and a cylindrical outer surface that extends from its periphery toward the upstream side.
The upstream cylindrical inner peripheral surface is
an annular seal portion at an upstream end portion thereof that is capable of contacting the cylindrical outer peripheral surface in the discharge mode;
The downstream cylindrical inner peripheral surface is
a groove portion that is separated from the downstream piston in the discharge mode to allow the contents to pass through;
2. The metering and dispensing mechanism according to claim 1.

The downstream piston is
2. The metering and dispensing mechanism according to claim 1, wherein the upstream piston is integrally connected to the downstream center of the upstream piston.

The cross-sectional area of the upstream piston is the same as the cross-sectional area of the downstream piston.
2. The metering and dispensing mechanism according to claim 1.

The cross-sectional area of the downstream piston is smaller than the cross-sectional area of the upstream piston.
2. The metering and dispensing mechanism according to claim 1.

a cap for covering the movable plug, the cap having a lift-up engagement portion that detachably engages with the movable plug;
When the cap is attached to the container body or the fixed stopper, the lifting engagement portion engages with the movable stopper,
When the cap is removed from the container body or the fixed stopper, the lifting engagement portion shifts the movable stopper to the measuring mode and then disengages from the movable stopper.
2. The metering and dispensing mechanism according to claim 1.

the cap and the container body or the fixed plug each have a threaded portion for coupling with each other,
When the coupling of the screw portion is released, the pull-up engagement portion shifts the movable stopper to the measurement mode and then disengages from the movable stopper.
7. The metering and dispensing mechanism according to claim 6.

The lifting engagement portion is
engages with the inner surface of the discharge port;
7. The metering and dispensing mechanism according to claim 6,

The upstream piston and the downstream piston are integrally molded.
2. The metering and dispensing mechanism according to claim 1.

a discharge valve including a discharge valve seat continuing to the discharge port and a discharge valve body connected to the downstream piston via an elastic portion, provided at a downstream end of the downstream cylindrical inner peripheral surface;
In the metering mode, the discharge valve body and the discharge valve seat are separated from each other, and the discharge valve is in an open state.
By shifting to the discharge mode, the discharge valve body abuts against the discharge valve seat, and the discharge valve is closed.
When a user presses the discharge port against a surface to be coated, the discharge valve body exposed from the discharge port moves against the biasing force of the elastic portion, and the discharge valve is brought into an open state.
2. The metering and dispensing mechanism according to claim 1.

The movable plug is
a cylindrical portion on the outer peripheral side of the upstream cylindrical inner peripheral surface, with an annular space interposed therebetween;
The fixed plug is
an outward skirt portion that is disposed on the outer side of the upstream piston and slides liquid-tightly against the inner circumferential surface of the cylindrical portion;
2. The metering and dispensing mechanism according to claim 1.

A container comprising the metering and dispensing mechanism according to any one of claims 1 to 11, and containing a liquid content in a container body.
A product characterized by: