JP2024079531A

JP2024079531A - Inverted unit

Info

Publication number: JP2024079531A
Application number: JP2023047074A
Authority: JP
Inventors: 宏太郎藤原; 信也前田
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 2022-11-30
Filing date: 2023-03-23
Publication date: 2024-06-11

Abstract

【課題】容器本体内の内容液をシリンダ部内に円滑に導入させる。【解決手段】正立時導入口６３ａと、倒立時導入口６５ａと、中継口６４ｃと、第１の切替弁６１と、第２の切替弁６２と、吐出器１０の正立時に、内容液が正立時導入口から中継口に向かう第１経路に対して、第２の切替弁が進入するのを抑止する抑止部７５、および吐出器の倒立時に、内容液が倒立時導入口から中継口に向かう第２経路に対して、第１の切替弁が進入するのを抑止する抑止部のうちの少なくとも一方の抑止部と、を備えている。【選択図】図１[Problem] To smoothly introduce the liquid content in the container body into the cylinder. [Solution] The device includes an upright inlet 63a, an inlet 65a when inverted, a relay port 64c, a first switching valve 61, a second switching valve 62, and at least one of a stopper 75 that stops the second switching valve from entering a first path along which the liquid content travels from the upright inlet to the relay port when the dispenser 10 is upright, and a stopper that stops the first switching valve from entering a second path along which the liquid content travels from the inlet when inverted to the relay port when the dispenser is inverted. [Selected Figure] Figure 1

Description

本発明は、正倒立用ユニットに関する。 The present invention relates to a unit for inverted standing.

吐出器のシリンダ部に取付けられる正倒立用ユニットとして、吐出器の正立時に、容器本体内の内容液をシリンダ部の内容液導入口に導入可能な正立時導入口と、吐出器の倒立時に、容器本体内の内容液を内容液導入口に導入可能な倒立時導入口と、内容液導入口、正立時導入口、および倒立時導入口に連通可能な中継口と、吐出器の正立時に、正立時弁座に当接して、倒立時導入口と中継口との連通を遮断する第１の切替弁と、吐出器の倒立時に、倒立時弁座に当接して、正立時導入口と中継口との連通を遮断する第２の切替弁と、を備える構成が知られている。
この正倒立用ユニットでは、吐出器の正立時に、容器本体内とシリンダ部の内容液導入口とが、正立時導入口および中継口を通して連通し、吐出器の倒立時に、容器本体内と内容液導入口とが、倒立時導入口および中継口を通して連通する。 A configuration is known for a normal/inverted unit that is attached to the cylinder portion of the dispenser, which includes an upright inlet that can introduce the content liquid in the container body into the content liquid inlet of the cylinder portion when the dispenser is upright, an inverted inlet that can introduce the content liquid in the container body into the content liquid inlet when the dispenser is inverted, an intermediate port that can communicate with the content liquid inlet, the upright inlet, and the inverted inlet, a first switching valve that abuts against the upright valve seat when the dispenser is upright to block communication between the inlet and the intermediate port, and a second switching valve that abuts against the inverted valve seat when the dispenser is inverted to block communication between the upright inlet and the intermediate port.
In this inverted unit, when the dispenser is in the upright position, the inside of the container body and the content liquid inlet of the cylinder section are connected through the upright inlet and the relay port, and when the dispenser is inverted, the inside of the container body and the content liquid inlet are connected through the inverted inlet and the relay port.

特開２０１７－４７３５５号公報JP 2017-47355 A

上記の正倒立用ユニットでは、吐出器の正立時に、容器本体内の内容液が、シリンダ部の内容液導入口に導入される際、第２の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近し、かつシリンダ部内の減圧が中継口を通して第２の切替弁に及ぼされることで、第２の切替弁が、倒立時弁座に押し当てられるおそれがある。
一方、吐出器の倒立時には、容器本体内の内容液が、内容液導入口に導入される際、第１の切替弁が、内容液の液流に乗って正立時弁座に向けて接近し、かつシリンダ部内の減圧が中継口を通して第１の切替弁に及ぼされることで、第１の切替弁が、正立時弁座に押し当てられるおそれがある。
以上より、容器本体内の内容液をシリンダ部内に円滑に導入することができないおそれがある。 In the above-mentioned inverted and normal unit, when the dispenser is in the upright position and the liquid contents within the container body are introduced into the liquid contents inlet of the cylinder section, the second switching valve is carried by the liquid flow of the liquid contents and moves closer to the inverted valve seat, and the reduced pressure within the cylinder section is applied to the second switching valve through the relay port, which may cause the second switching valve to be pressed against the inverted valve seat.
On the other hand, when the dispenser is inverted, as the liquid contents in the container body are introduced into the liquid contents inlet, the first switching valve is carried by the flow of the liquid contents and moves closer to the upright valve seat, and the reduced pressure in the cylinder portion is applied to the first switching valve through the relay port, which may cause the first switching valve to be pressed against the upright valve seat.
For the above reasons, there is a risk that the liquid content within the container body cannot be smoothly introduced into the cylinder portion.

本発明は、容器本体内の内容液をシリンダ部内に円滑に導入することができる正倒立用ユニットを提供することを目的とする。 The present invention aims to provide an inverted container unit that can smoothly introduce the liquid contents in the container body into the cylinder section.

本発明の一態様に係る正倒立用ユニットは、吐出器のシリンダ部に取付けられる正倒立用ユニットであって、前記吐出器の正立時に、容器本体内の内容液を前記シリンダ部の内容液導入口に導入可能な正立時導入口と、前記吐出器の倒立時に、容器本体内の内容液を前記内容液導入口に導入可能な倒立時導入口と、前記内容液導入口、前記正立時導入口、および前記倒立時導入口に連通可能な中継口と、前記吐出器の正立時に、正立時弁座に当接して、前記倒立時導入口と前記中継口との連通を遮断する第１の切替弁と、前記吐出器の倒立時に、倒立時弁座に当接して、前記正立時導入口と前記中継口との連通を遮断する第２の切替弁と、前記吐出器の正立時に、内容液が前記正立時導入口から前記中継口に向かう第１経路に対して、前記第２の切替弁が進入するのを抑止する抑止部、および前記吐出器の倒立時に、内容液が前記倒立時導入口から前記中継口に向かう第２経路に対して、前記第１の切替弁が進入するのを抑止する抑止部のうちの少なくとも一方の抑止部と、を備えている。 The upright inversion unit according to one aspect of the present invention is a upright inversion unit attached to the cylinder part of a dispenser, and includes an upright inlet port capable of introducing the content liquid in the container body into the content liquid inlet port of the cylinder part when the dispenser is upright, an inverted inlet port capable of introducing the content liquid in the container body into the content liquid inlet port when the dispenser is inverted, an intermediate port capable of communicating with the content liquid inlet port, the upright inlet port, and the inverted inlet port, and a valve seat when the dispenser is upright, which abuts against the upright valve seat to block communication between the inverted inlet port and the intermediate port when the dispenser is upright. The device is provided with at least one of a first switching valve that cuts off communication between the inlet when the discharger is inverted and the relay port by contacting an inverted valve seat when the discharger is inverted, a stopper that prevents the second switching valve from entering a first path along which the content liquid travels from the inlet when the discharger is inverted to the relay port when the discharger is inverted, and a stopper that prevents the first switching valve from entering a second path along which the content liquid travels from the inlet when the discharger is inverted to the relay port when the discharger is inverted.

吐出器の正立時に、内容液が正立時導入口から中継口に向かう第１経路に対して、第２の切替弁が進入するのを抑止する抑止部、および吐出器の倒立時に、内容液が倒立時導入口から中継口に向かう第２経路に対して、第１の切替弁が進入するのを抑止する抑止部のうちの少なくとも一方の抑止部を備えているので、容器本体内の内容液が、シリンダ部の内容液導入口に導入される際、吐出器の正立時に、第１経路を流れる内容液が第２の切替弁に接触して、第２の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近すること、および吐出器の倒立時に、第２経路を流れる内容液が第１の切替弁に接触して、第１の切替弁が、内容液の液流に乗って正立時弁座に向けて接近すること、の少なくとも一方を防ぐことができる。
これにより、内容液が、シリンダ部の内容液導入口に導入される際、吐出器の正立時に、第２の切替弁が、中継口を通して及ぼされるシリンダ部内の減圧によって倒立時弁座に押し当てられること、および吐出器の倒立時に、第１の切替弁が、中継口を通して及ぼされるシリンダ部内の減圧によって正立時弁座に押し当てられること、の少なくとも一方を防ぐことが可能になり、容器本体内の内容液をシリンダ部内に円滑に導入することができる。 Since the container body is provided with at least one of a stopper section which stops the second switching valve from entering the first path along which the content liquid flows from the inlet when the dispenser is in the upright position to the relay port when the dispenser is in the upright position, and a stopper section which stops the first switching valve from entering the second path along which the content liquid flows from the inlet when the dispenser is inverted to the relay port when the dispenser is inverted, when the content liquid in the container body is introduced into the content liquid inlet of the cylinder section, it is possible to prevent at least one of the following: when the dispenser is in the upright position, the content liquid flowing through the first path comes into contact with the second switching valve, and the second switching valve moves along with the flow of the content liquid toward the inverted valve seat; and when the dispenser is inverted, the content liquid flowing through the second path comes into contact with the first switching valve, and the first switching valve moves along with the flow of the content liquid toward the upright valve seat.
This makes it possible to prevent at least one of the following when the content liquid is introduced into the content liquid inlet of the cylinder portion: when the dispenser is upright, the second switching valve being pressed against the inverted valve seat due to the reduced pressure in the cylinder portion exerted through the relay port; and when the dispenser is inverted, the first switching valve being pressed against the upright valve seat due to the reduced pressure in the cylinder portion exerted through the relay port, thereby enabling the content liquid in the container body to be smoothly introduced into the cylinder portion.

前記シリンダ部に外装されるとともに、下端開口が前記正立時導入口とされた外筒部材を備え、前記外筒部材の内面における前記正立時導入口の開口周縁部に、上方に向けて突出し、前記正立時導入口を上方から覆う有頂筒状の被覆部が形成され、前記被覆部の周壁には、径方向に開口し、前記正立時導入口と前記外筒部材内とを連通する側方開口が形成され、前記吐出器の正立時に、前記第１経路に対して前記第２の切替弁が進入するのを抑止する前記抑止部が、前記被覆部の頂壁から上方に向けて突出してもよい。 The cylinder section is fitted with an outer tube member having a lower end opening that serves as the upright inlet, and a topped cylindrical covering section is formed on the inner surface of the outer tube member at the periphery of the upright inlet, protruding upward and covering the upright inlet from above, and a side opening is formed in the peripheral wall of the covering section, opening in the radial direction and communicating between the upright inlet and the inside of the outer tube member, and the preventing section, which prevents the second switching valve from entering the first path when the dispenser is upright, may protrude upward from the top wall of the covering section.

被覆部の周壁に、正立時導入口と外筒部材内とを連通する側方開口が形成され、抑止部が、被覆部の頂壁から上方に向けて突出しているので、吐出器の正立時に、第２の切替弁を、抑止部と、被覆部の頂壁の上面と、外筒部材の内周面と、で囲まれた空間に位置させることで、第２の切替弁が前記第１経路に進入するのを確実に抑止することができる。 A side opening is formed in the peripheral wall of the covering portion that connects the inlet and the inside of the outer tube member when the nozzle is in the upright position, and the preventing portion protrudes upward from the top wall of the covering portion. Therefore, when the dispenser is in the upright position, the second switching valve is positioned in the space surrounded by the preventing portion, the upper surface of the top wall of the covering portion, and the inner peripheral surface of the outer tube member, thereby reliably preventing the second switching valve from entering the first path.

前記抑止部は、上下方向から見て、表面が、径方向のうち、前記側方開口が開口している側を向く板状に形成され、前記外筒部材の内周面のうち、前記側方開口および前記抑止部の表面と径方向で対向する部分と、前記側方開口および前記抑止部の表面と、の間が、前記第１経路の入口部分とされ、前記外筒部材の内側には、前記吐出器の正立時に、前記入口部分に進入しようとした前記第２の切替弁を、前記抑止部の裏面側に導く案内部が設けられてもよい。 When viewed from above and below, the surface of the suppression portion is formed in a plate shape that faces the radial side of the side opening, and the portion of the inner peripheral surface of the outer tube member that faces the side opening and the surface of the suppression portion in the radial direction and the portion between the side opening and the surface of the suppression portion are regarded as an inlet portion of the first path, and a guide portion may be provided on the inside of the outer tube member to guide the second switching valve, which is attempting to enter the inlet portion when the dispenser is upright, to the back side of the suppression portion.

外筒部材の内側に、吐出器の正立時に、前記第１経路の入口部分に進入しようとした第２の切替弁を、抑止部の裏面側に導く案内部が設けられているので、第２の切替弁が前記第１経路に進入するのを確実に抑止することができる。 A guide portion is provided on the inside of the outer cylinder member to guide the second switching valve, which is about to enter the inlet portion of the first path when the dispenser is upright, to the rear side of the prevention portion, so that the second switching valve can be reliably prevented from entering the first path.

前記吐出器の正立時に、前記第２の切替弁を進入させて、前記第１経路に対して、前記倒立時弁座の反対側で、かつ前記正立時導入口の開口方向に交差する方向に、前記第２の切替弁を離す退避凹部、および前記吐出器の倒立時に、前記第１の切替弁を進入させて、前記第２経路に対して、前記正立時弁座の反対側で、かつ前記倒立時導入口の開口方向に交差する方向に、前記第１の切替弁を離す退避凹部のうちの少なくとも一方の退避凹部を備えてもよい。 The device may be provided with at least one of a retraction recess for inserting the second switching valve when the dispenser is in the upright position and releasing the second switching valve from the first path on the opposite side of the inverted valve seat and in a direction intersecting the opening direction of the inlet when the dispenser is in the upright position, and a retraction recess for inserting the first switching valve when the dispenser is inverted and releasing the first switching valve from the second path on the opposite side of the inverted valve seat and in a direction intersecting the opening direction of the inlet when the dispenser is inverted.

吐出器の正立時に、第２の切替弁を進入させて、第１経路に対して、倒立時弁座の反対側で、かつ正立時導入口の開口方向に交差する方向に、第２の切替弁を離す退避凹部、および吐出器の倒立時に、第１の切替弁を進入させて、第２経路に対して、正立時弁座の反対側で、かつ倒立時導入口の開口方向に交差する方向に、第１の切替弁を離す退避凹部のうちの少なくとも一方の退避凹部を備えているので、容器本体内の内容液が、内容液導入口に導入される際、吐出器の正立時に、第１経路を流れる内容液が第２の切替弁に接触して、第２の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近すること、および吐出器の倒立時に、第２経路を流れる内容液が第１の切替弁に接触して、第１の切替弁が、内容液の液流に乗って正立時弁座に向けて接近すること、の少なくとも一方を防ぐことができる。
これにより、内容液が、内容液導入口に導入される際、吐出器の正立時に、第２の切替弁が、中継口を通して及ぼされるシリンダ部内の減圧によって倒立時弁座に押し当てられること、および吐出器の倒立時に、第１の切替弁が、中継口を通して及ぼされるシリンダ部内の減圧によって正立時弁座に押し当てられること、の少なくとも一方を防ぐことが可能になり、容器本体内の内容液をシリンダ部内に円滑に導入することができる。 The container body is provided with at least one of the retraction recesses: a retraction recess which, when the dispenser is in the upright position, causes the second switching valve to enter and release the second switching valve from the first path, on the opposite side of the valve seat in the upright position and in a direction intersecting the opening direction of the inlet in the upright position, and a retraction recess which, when the dispenser is inverted, causes the first switching valve to enter and release the first switching valve from the second path, on the opposite side of the valve seat in the upright position and in a direction intersecting the opening direction of the inlet in the upright position. Therefore, when the content liquid in the container body is introduced into the content liquid inlet, when the dispenser is in the upright position, it is possible to prevent at least one of the following: the content liquid flowing through the first path contacts the second switching valve, and the second switching valve is carried by the flow of the content liquid and moves toward the valve seat in the upright position; and when the dispenser is inverted, the content liquid flowing through the second path contacts the first switching valve, and the first switching valve is carried by the flow of the content liquid and moves toward the valve seat in the upright position.
This makes it possible to prevent at least one of the following when the content liquid is introduced into the content liquid inlet: when the dispenser is upright, the second switching valve is pressed against the inverted valve seat due to the reduced pressure in the cylinder section exerted through the relay port; and when the dispenser is inverted, the first switching valve is pressed against the upright valve seat due to the reduced pressure in the cylinder section exerted through the relay port, so that the content liquid in the container body can be smoothly introduced into the cylinder section.

前記正立時弁座は上方を向き、前記倒立時弁座は下方を向き、前記抑止部は、上下方向に延びる筒状に形成されるとともに、前記正立時弁座および前記倒立時弁座のうちの少なくとも一方の弁座と上下方向で対向し、前記第１の切替弁および前記第２の切替弁のうちの少なくとも一方の切替弁は、前記弁座から上下方向に離反したときに前記抑止部の内側に進入して収容されてもよい。 The upright valve seat faces upward, and the inverted valve seat faces downward, the suppression part is formed in a cylindrical shape extending in the vertical direction and faces at least one of the upright valve seat and the inverted valve seat in the vertical direction, and at least one of the first switching valve and the second switching valve may enter and be accommodated inside the suppression part when it moves away from the valve seat in the vertical direction.

第１の切替弁および第２の切替弁のうちの少なくとも一方の切替弁が、弁座から上下方向に離反したときに抑止部の内側に進入して収容されるので、容器本体内の内容液が、シリンダ部の内容液導入口に導入される際、吐出器の正立時に、第１経路を流れる内容液が第２の切替弁に接触して、第２の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近すること、および吐出器の倒立時に、第２経路を流れる内容液が第１の切替弁に接触して、第１の切替弁が、内容液の液流に乗って正立時弁座に向けて接近すること、の少なくとも一方を確実に防ぐことができる。 When at least one of the first and second switching valves moves away from the valve seat in the vertical direction, it enters and is accommodated inside the prevention part, so that when the liquid contents in the container body are introduced into the liquid contents inlet of the cylinder part, when the dispenser is in the upright position, at least one of the following can be reliably prevented: when the liquid contents flowing through the first path comes into contact with the second switching valve, the second switching valve riding on the liquid contents flow and moving towards the valve seat when inverted; and when the dispenser is inverted, the liquid contents flowing through the second path comes into contact with the first switching valve, the first switching valve riding on the liquid contents flow and moving towards the valve seat when inverted.

前記抑止部は、前記正立時弁座と上下方向で対向し、かつ前記吐出器の倒立時に前記第１の切替弁が内側に進入して収容される位置と、前記倒立時弁座と上下方向で対向し、かつ前記吐出器の正立時に前記第２の切替弁が内側に進入して収容される位置と、に各別に設けられてもよい。 The suppression portion may be provided at a position that faces the valve seat in the upright position in the vertical direction and where the first switching valve enters and is accommodated when the dispenser is inverted, and at a position that faces the valve seat in the upright position in the vertical direction and where the second switching valve enters and is accommodated when the dispenser is in the upright position.

抑止部が、正立時弁座と上下方向で対向し、かつ吐出器の倒立時に第１の切替弁が内側に進入して収容される位置と、倒立時弁座と上下方向で対向し、かつ吐出器の正立時に第２の切替弁が内側に進入して収容される位置と、に各別に設けられているので、容器本体内の内容液が、シリンダ部の内容液導入口に導入される際、吐出器の正立時に、第１経路を流れる内容液が第２の切替弁に接触して、第２の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近すること、および吐出器の倒立時に、第２経路を流れる内容液が第１の切替弁に接触して、第１の切替弁が、内容液の液流に乗って正立時弁座に向けて接近すること、の双方を確実に防ぐことができる。
抑止部が、前述の各位置の双方に設けられていることから、前述の各位置に設けられ、かつ抑止部を備える２部品を容易に同一の形状で同一の大きさとすることができる。 The stopper portion is provided at a position that faces the valve seat in the upright position in the vertical direction and where the first switching valve advances inward and is accommodated when the dispenser is inverted, and at a position that faces the valve seat in the upright position in the vertical direction and where the second switching valve advances inward and is accommodated when the dispenser is in the upright position. Therefore, when the content liquid in the container body is introduced into the content liquid inlet of the cylinder portion, it is possible to reliably prevent both of the following from happening: when the dispenser is in the upright position, the content liquid flowing through the first path comes into contact with the second switching valve, and the second switching valve is carried by the flow of the content liquid and moves toward the inverted valve seat; and when the dispenser is inverted, the content liquid flowing through the second path comes into contact with the first switching valve, and the first switching valve is carried by the flow of the content liquid and moves toward the upright valve seat.
Since the restraining portion is provided at both of the aforementioned positions, the two parts provided at the aforementioned positions and equipped with the restraining portions can easily be made to be the same shape and size.

本発明の上記態様によれば、容器本体内の内容液をシリンダ部内に円滑に導入することができる。 According to the above aspect of the present invention, the liquid content in the container body can be smoothly introduced into the cylinder portion.

本発明に係る第１実施形態として示した正倒立用ユニットを有する吐出器の縦断面図である。1 is a vertical sectional view of a dispenser having a normal/inverted unit shown as a first embodiment according to the present invention. 図１の正倒立用ユニットの拡大図である。FIG. 2 is an enlarged view of the inverted stand unit of FIG. 1 . 図２のＩＩＩ－ＩＩＩ線矢視断面図である。3 is a cross-sectional view taken along line III-III in FIG. 2. 図２において吐出器の倒立時を示す図である。FIG. 3 is a diagram showing the dispenser in FIG. 2 when inverted. 本発明に係る第２実施形態として示した正倒立用ユニットを有する吐出器の縦断面図である。FIG. 11 is a vertical sectional view of a dispenser having an inverted normal unit shown as a second embodiment according to the present invention. 図５の正倒立用ユニットの拡大図である。FIG. 6 is an enlarged view of the inverted stand unit of FIG. 5 . 図６において吐出器の倒立時を示す図である。FIG. 7 is a diagram showing the dispenser in FIG. 6 when inverted.

以下、図面を参照し、本発明の第１実施形態に係る正倒立用ユニットを説明する。
図１に示されるように、正倒立用ユニット１は、ポンプ１１と、吐出ヘッド１２と、押下部材１３と、装着キャップ１４と、を備える吐出器１０の一部を構成する。
まず、ポンプ１１、吐出ヘッド１２、押下部材１３、および装着キャップ１４について説明する。 Hereinafter, an inverted stand unit according to a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1 , the normal/inverted unit 1 constitutes a part of a dispenser 10 including a pump 11 , a discharge head 12 , a push-down member 13 , and an attachment cap 14 .
First, the pump 11, the discharge head 12, the push-down member 13, and the mounting cap 14 will be described.

ポンプ１１は、シリンダ部２１と、ピストン部２２と、第１付勢部材２３と、下部弁体２４と、を備え、シリンダ部２１の内容積の増加による内圧減少により、容器本体Ｗ内の内容液が、内容液導入口２１ｆを通してシリンダ部２１内に導入されるとともに、シリンダ部２１の内容積の減少による内圧上昇により、シリンダ部２１内の内容液を吐出ヘッド１２に送り出す。 The pump 11 comprises a cylinder portion 21, a piston portion 22, a first biasing member 23, and a lower valve body 24. When the internal pressure decreases due to an increase in the internal volume of the cylinder portion 21, the liquid content in the container body W is introduced into the cylinder portion 21 through the liquid content inlet port 21f, and when the internal pressure increases due to a decrease in the internal volume of the cylinder portion 21, the liquid content in the cylinder portion 21 is sent to the discharge head 12.

シリンダ部２１、ピストン部２２、および第１付勢部材２３はそれぞれ、筒状に形成されるとともに、共通軸と同軸に配設されている。
以下、前記共通軸を軸線Ｏといい、軸線Ｏ方向に沿って吐出ヘッド１２側を上側といい、軸線Ｏ方向に沿って正倒立用ユニット１側を下側といい、軸線Ｏに沿う方向を上下方向という。上下方向から見て軸線Ｏに交差する方向を径方向といい、上下方向から見て軸線Ｏ回りに周回する方向を周方向という。 The cylinder portion 21, the piston portion 22, and the first biasing member 23 are each formed in a cylindrical shape, and are disposed coaxially with a common axis.
Hereinafter, the common axis is referred to as axis O, the ejection head 12 side along the axis O direction is referred to as the upper side, the inverted unit 1 side along the axis O direction is referred to as the lower side, and the direction along the axis O is referred to as the up-down direction. The direction intersecting the axis O when viewed from the up-down direction is referred to as the radial direction, and the direction going around the axis O when viewed from the up-down direction is referred to as the circumferential direction.

シリンダ部２１は、内容液が収容される容器本体Ｗの口部Ｗ１内に挿入される。シリンダ部２１に、径方向の外側に向けて突出したフランジ部２１ａが形成されている。フランジ部２１ａは、口部Ｗ１の上端開口縁にパッキンを介して載置される。フランジ部２１ａに上方に向けて突出した第１連結筒部２１ｂが形成されている。第１連結筒部２１ｂは、軸線Ｏと同軸に配設されている。 The cylinder portion 21 is inserted into the mouth portion W1 of the container body W in which the liquid content is contained. A flange portion 21a that protrudes radially outward is formed on the cylinder portion 21. The flange portion 21a is placed on the upper opening edge of the mouth portion W1 via a packing. A first connecting tube portion 21b that protrudes upward is formed on the flange portion 21a. The first connecting tube portion 21b is disposed coaxially with the axis O.

ピストン部２２は、環状の頂壁を有する有頂筒状の摺動部２２ａと、摺動部２２ａの頂壁の内周縁部から上方に向けて延びる筒部２２ｂと、を備えている。摺動部２２ａは、シリンダ部２１内に上下摺動可能に嵌合されている。筒部２２ｂは、第１連結筒部２１ｂに挿入され、筒部２２ｂの上端部は、第１連結筒部２１ｂから上方に突出している。 The piston portion 22 has a sliding portion 22a that is a cylindrical top wall with an annular top wall, and a tube portion 22b that extends upward from the inner peripheral edge of the top wall of the sliding portion 22a. The sliding portion 22a is fitted into the cylinder portion 21 so as to be able to slide up and down. The tube portion 22b is inserted into the first connecting tube portion 21b, and the upper end portion of the tube portion 22b protrudes upward from the first connecting tube portion 21b.

第１付勢部材２３の上端部は、摺動部２２ａ内に挿入され、摺動部２２ａの頂壁の下面に当接している。第１付勢部材２３の下端部は、シリンダ部２１の内周面に形成された上方を向く段部に当接している。第１付勢部材２３は、上下方向に延びるコイルばねとなっている。 The upper end of the first biasing member 23 is inserted into the sliding portion 22a and abuts against the lower surface of the top wall of the sliding portion 22a. The lower end of the first biasing member 23 abuts against an upwardly facing step formed on the inner circumferential surface of the cylinder portion 21. The first biasing member 23 is a coil spring that extends in the vertical direction.

下部弁体２４は、例えばボール弁とされ、シリンダ部２１の下端部内に設けられている。シリンダ部２１の下端部の内周面に、径方向の内側に向けて突出し、下方に向かうに従い縮径した弁座部２１ｅが形成されている。弁座部２１ｅの下端開口は、容器本体Ｗ内の内容液がシリンダ部２１内に導入される内容液導入口２１ｆとなっている。弁座部２１ｅの上面に、下部弁体２４が上方に向けて離反自在に載置されている。下部弁体２４は、シリンダ部２１内の加圧時に容器本体Ｗ内とシリンダ部２１内との連通を遮断する一方、シリンダ部２１内の減圧時に容器本体Ｗ内とシリンダ部２１内とを連通させる逆止弁である。 The lower valve body 24 is, for example, a ball valve, and is provided in the lower end of the cylinder section 21. A valve seat section 21e is formed on the inner peripheral surface of the lower end of the cylinder section 21, protruding radially inward and tapering in diameter as it extends downward. The lower end opening of the valve seat section 21e serves as a liquid content inlet 21f through which the liquid content in the container body W is introduced into the cylinder section 21. The lower valve body 24 is placed on the upper surface of the valve seat section 21e so that it can be freely separated upward. The lower valve body 24 is a check valve that blocks communication between the inside of the container body W and the inside of the cylinder section 21 when the inside of the cylinder section 21 is pressurized, but allows communication between the inside of the container body W and the inside of the cylinder section 21 when the inside of the cylinder section 21 is depressurized.

装着キャップ１４は、口部Ｗ１に装着される。装着キャップ１４は、環状の頂壁を有する有頂筒状に形成され、頂壁の内側に、第１連結筒部２１ｂが挿入されている。頂壁の下面と口部Ｗ１の上端開口縁とにより、フランジ部２１ａが上下方向に挟まれて固定されている。 The attachment cap 14 is attached to the mouth portion W1. The attachment cap 14 is formed in a topped cylinder shape with an annular top wall, and the first connecting cylinder portion 21b is inserted inside the top wall. The flange portion 21a is sandwiched and fixed in the vertical direction between the bottom surface of the top wall and the upper end opening edge of the mouth portion W1.

押下部材１３は、支持部２５と、レバー部２６と、を備えている。
支持部２５は、第１連結筒部２１ｂに外嵌された有頂筒状の第２連結筒部２５ａと、第２連結筒部２５ａから上方に向けて突出した突出部２５ｂと、を備えている。第２連結筒部２５ａの頂壁は、環状に形成され、内側にピストン部２２の筒部２２ｂが挿入され、筒部２２ｂの上端部は、第２連結筒部２５ａから上方に突出している。突出部２５ｂは、軸線Ｏから径方向に離れている。
以下、径方向のうち、突出部２５ｂが軸線Ｏから離れている側を後側といい、これとは逆側を前側という。
レバー部２６の後部は、突出部２５ｂの上端部から前方に向けて延び、軸線Ｏを前後方向に跨ぎ、レバー部２６の前部は、レバー部２６の後部の前端部から下方に向けて延びている。レバー部２６は、突出部２５ｂの上端部回りに上下方向に回転可能に設けられている。レバー部２６は、吐出ヘッド１２に係合する係合部２６ａを有する。レバー部２６が、突出部２５ｂの上端部回りに下方に向けて回転する際、係合部２６ａが吐出ヘッド１２を押下する。 The push-down member 13 includes a support portion 25 and a lever portion 26 .
The support portion 25 includes a topped cylindrical second connecting cylinder portion 25a fitted onto the first connecting cylinder portion 21b, and a protruding portion 25b protruding upward from the second connecting cylinder portion 25a. The top wall of the second connecting cylinder portion 25a is formed in an annular shape, and the cylinder portion 22b of the piston portion 22 is inserted inside, with the upper end of the cylinder portion 22b protruding upward from the second connecting cylinder portion 25a. The protruding portion 25b is spaced radially from the axis O.
Hereinafter, the radial side of the protruding portion 25b away from the axis O will be referred to as the rear side, and the opposite side will be referred to as the front side.
The rear portion of lever portion 26 extends forward from the upper end of protrusion 25b and straddles axis O in the front-to-rear direction, and the front portion of lever portion 26 extends downward from the front end of the rear portion of lever portion 26. Lever portion 26 is provided so as to be rotatable in the up-down direction around the upper end of protrusion 25b. Lever portion 26 has an engagement portion 26a that engages with ejection head 12. When lever portion 26 rotates downward around the upper end of protrusion 25b, engagement portion 26a presses down on ejection head 12.

支持部２５には、レバー部２６の下方に向けた回転を規制する規制位置と、レバー部２６の下方に向けた回転を許容する許容位置と、の間を移動可能に設けられた規制部材３１が取付けられている。 A restricting member 31 is attached to the support portion 25 and is movable between a restricting position that restricts downward rotation of the lever portion 26 and a permitting position that permits downward rotation of the lever portion 26.

吐出ヘッド１２は、本体部２７と、蓄圧弁２８と、第２付勢部材２９と、を備えている。
本体部２７は、径方向に延びる横筒１２ａと、横筒１２ａから下方に向けて延びる縦筒１２ｂと、を備えている。横筒１２ａは、前後方向に延び、レバー部２６の前部を前後方向に貫いている。横筒１２ａの前端部に、前方に向けて開口した吐出孔１２ｃが形成されている。縦筒１２ｂは、横筒１２ａの後部から下方に向けて延びている。縦筒１２ｂは、ピストン部２２の筒部２２ｂに外嵌されている。
蓄圧弁２８は、横筒１２ａ内に設けられ、縦筒１２ｂ内と吐出孔１２ｃとの連通を遮断する。蓄圧弁２８は、横筒１２ａの後部内に前後動可能に設けられ、第２付勢部材２９により前方に向けて付勢されている。横筒１２ａの後部の内圧が所定値を超えたときに、蓄圧弁２８が第２付勢部材２９の付勢力に抗して後方に向けて移動することで、縦筒１２ｂ内と吐出孔１２ｃとが連通し、内容液が吐出孔１２ｃから吐出される。 The ejection head 12 includes a main body portion 27 , a pressure accumulator valve 28 , and a second biasing member 29 .
The main body 27 includes a horizontal tube 12a extending in the radial direction and a vertical tube 12b extending downward from the horizontal tube 12a. The horizontal tube 12a extends in the front-rear direction and penetrates the front part of the lever part 26 in the front-rear direction. A discharge hole 12c opening forward is formed in the front end part of the horizontal tube 12a. The vertical tube 12b extends downward from the rear part of the horizontal tube 12a. The vertical tube 12b is fitted onto the outside of the tube part 22b of the piston part 22.
The accumulator valve 28 is provided in the horizontal cylinder 12a and blocks communication between the inside of the vertical cylinder 12b and the discharge hole 12c. The accumulator valve 28 is provided in the rear part of the horizontal cylinder 12a so as to be movable forward and backward, and is biased forward by a second biasing member 29. When the internal pressure in the rear part of the horizontal cylinder 12a exceeds a predetermined value, the accumulator valve 28 moves rearward against the biasing force of the second biasing member 29, thereby connecting the inside of the vertical cylinder 12b with the discharge hole 12c, and the content liquid is discharged from the discharge hole 12c.

次に、正倒立用ユニット１について説明する。 Next, we will explain the inverted stand unit 1.

正倒立用ユニット１は、シリンダ部２１に取付けられる。正倒立用ユニット１は、第１の切替弁６１と、第２の切替弁６２と、外筒部材６３と、内筒部材６４と、流路形成部材６５と、を備えている。外筒部材６３、および内筒部材６４は、軸線Ｏと同軸に配設されている。 The normal inversion unit 1 is attached to the cylinder section 21. The normal inversion unit 1 includes a first switching valve 61, a second switching valve 62, an outer cylinder member 63, an inner cylinder member 64, and a flow path forming member 65. The outer cylinder member 63 and the inner cylinder member 64 are arranged coaxially with the axis O.

流路形成部材６５は、吐出器１０の倒立時に容器本体Ｗ内の内容液をシリンダ部２１の内容液導入口２１ｆに導入可能な倒立時導入口６５ａを有する。流路形成部材６５は、有底筒状に形成され、シリンダ部２１の下端部に外嵌されている。流路形成部材６５の底壁部の外周縁部に、下方に向けて突出したシール筒部６５ｃが形成されている。 The flow path forming member 65 has an inverted inlet 65a that can introduce the liquid content in the container body W to the liquid content inlet 21f of the cylinder section 21 when the dispenser 10 is inverted. The flow path forming member 65 is formed in a bottomed cylindrical shape and is fitted onto the lower end of the cylinder section 21. A sealing cylinder section 65c that protrudes downward is formed on the outer periphery of the bottom wall section of the flow path forming member 65.

外筒部材６３は、流路形成部材６５を介してシリンダ部２１に外装されている。外筒部材６３は、吐出器１０の正立時に容器本体Ｗ内の内容液をシリンダ部２１の内容液導入口２１ｆに導入可能な正立時導入口６３ａと、吐出器１０の倒立時に容器本体Ｗ内の内容液を倒立時導入口６５ａに導入可能な取込孔６３ｃと、を有する。
正立時導入口６３ａ、および取込孔６３ｃは、容器本体Ｗ内に開口する。取込孔６３ｃおよび倒立時導入口６５ａは、吐出器１０の正立時に、正立時導入口６３ａよりも上方に位置している。 The outer cylinder member 63 is fitted to the cylinder portion 21 via a flow path forming member 65. The outer cylinder member 63 has an upright inlet 63a through which the content liquid in the container body W can be introduced into the content liquid inlet 21f of the cylinder portion 21 when the dispenser 10 is upright, and an intake hole 63c through which the content liquid in the container body W can be introduced into the inverted inlet 65a when the dispenser 10 is inverted.
The upright inlet 63a and the intake hole 63c open into the container body W. The intake hole 63c and the inverted inlet 65a are located higher than the upright inlet 63a when the dispenser 10 is in the upright position.

外筒部材６３は、下方に向かうに従って段階的に縮径する多段筒状に形成されている。外筒部材６３は、上方から下方に向けて、第１外筒部７１と、第２外筒部７２と、第３外筒部７３と、第４外筒部７４と、がこの順に連ねられて構成されている。 The outer tube member 63 is formed in a multi-stage tube shape that gradually reduces in diameter as it goes downward. The outer tube member 63 is composed of a first outer tube portion 71, a second outer tube portion 72, a third outer tube portion 73, and a fourth outer tube portion 74, which are connected in this order from top to bottom.

第１外筒部７１は、流路形成部材６５の外周面を、径方向の隙間をあけた状態で囲っている。流路形成部材６５の外周面と第１外筒部７１の内周面との間には、周方向に延びる環状の隙間が設けられている。この隙間に、倒立時導入口６５ａが開口している。第１外筒部７１の上端開口が、取込孔６３ｃとなっている。第１外筒部７１の下端部内に、流路形成部材６５のシール筒部６５ｃが密に嵌合されている。
なお、第１外筒部７１として、シール筒部６５ｃに外嵌された下端部のみを有し、下端部より上方に位置する部分、および取込孔６３ｃを有さず、倒立時導入口６５ａを容器本体Ｗ内に開口させた構成を採用してもよい。 The first outer cylinder portion 71 surrounds the outer peripheral surface of the flow path forming member 65 with a radial gap. An annular gap extending in the circumferential direction is provided between the outer peripheral surface of the flow path forming member 65 and the inner peripheral surface of the first outer cylinder portion 71. An inverted introduction port 65a opens in this gap. The upper end opening of the first outer cylinder portion 71 serves as an intake hole 63c. A seal cylinder portion 65c of the flow path forming member 65 is tightly fitted into the lower end portion of the first outer cylinder portion 71.
In addition, the first outer tube portion 71 may have only a lower end portion fitted onto the sealing tube portion 65c, no portion located above the lower end portion, and no intake hole 63c, and the inlet 65a when inverted may be opened into the container body W.

第２外筒部７２内に、後述する内筒部材６４の中継口６４ｃが開口している。
第３外筒部７３の上端部内に、内筒部材６４の下端部が密に嵌合されている。第３外筒部７３の下端開口が、上下方向に開口した正立時導入口６３ａとなっている。第３外筒部７３内に、第２の切替弁６２が移動自在に収容されている。第２の切替弁６２は、例えばボール弁となっている。
第４外筒部７４内に、吸引筒６７の上端部が嵌合されている。吸引筒６７の下端部は、容器本体Ｗの底部に位置している。吸引筒６７を通して正立時導入口６３ａが容器本体Ｗ内に連通している。なお、第４外筒部７４を設けず、吸引筒６７の上端部が、例えば第３外筒部７３に連結された構成を採用してもよい。 A relay port 64 c of the inner cylinder member 64 , which will be described later, opens into the second outer cylinder portion 72 .
The lower end of the inner cylinder member 64 is tightly fitted into the upper end of the third outer cylinder portion 73. The lower end opening of the third outer cylinder portion 73 serves as an upright position introduction port 63a that opens in the vertical direction. The second switching valve 62 is movably housed within the third outer cylinder portion 73. The second switching valve 62 is, for example, a ball valve.
The upper end of the suction cylinder 67 is fitted into the fourth outer cylinder portion 74. The lower end of the suction cylinder 67 is located at the bottom of the container body W. The upright inlet 63a communicates with the inside of the container body W through the suction cylinder 67. Note that a configuration may be adopted in which the upper end of the suction cylinder 67 is connected to, for example, the third outer cylinder portion 73 without providing the fourth outer cylinder portion 74.

図２に示されるように、内筒部材６４は、正立時導入口６３ａに連通する下端開口６４ａと、倒立時導入口６５ａに連通する上端開口６４ｂと、内容液導入口２１ｆ、正立時導入口６３ａ、および倒立時導入口６５ａに連通可能な中継口６４ｃと、を有する。中継口６４ｃは、内容液導入口２１ｆ、正立時導入口６３ａ、および倒立時導入口６５ａに、互いに異なる流路を通して各別に連通している。 2, the inner cylinder member 64 has a lower end opening 64a that communicates with the upright inlet 63a, an upper end opening 64b that communicates with the inlet 65a when inverted, and a relay port 64c that can communicate with the content liquid inlet 21f, the upright inlet 63a, and the inverted inlet 65a. The relay port 64c is connected to the content liquid inlet 21f, the upright inlet 63a, and the inverted inlet 65a through different flow paths.

内筒部材６４は、上下方向の中間部分が径方向の内側に括れた瓢箪状に形成されている。内筒部材６４の上端部は、流路形成部材６５の底壁部に連結されている。内筒部材６４は、上方から下方に向けて、第１内筒部７６と、第２内筒部７７と、第３内筒部７８と、がこの順に連ねられて構成されている。 The inner cylinder member 64 is formed in a gourd shape with the vertical middle portion narrowed radially inward. The upper end of the inner cylinder member 64 is connected to the bottom wall of the flow path forming member 65. The inner cylinder member 64 is composed of a first inner cylinder portion 76, a second inner cylinder portion 77, and a third inner cylinder portion 78, which are connected in this order from top to bottom.

第１内筒部７６の上端開口が、内筒部材６４の上端開口６４ｂとなっている。第１内筒部７６の下部の内周面には、上方を向く正立時弁座６４ｄが形成されている。正立時弁座６４ｄは、下方に向かうに従い径方向の内側に向けて延びている。
第１の切替弁６１は、吐出器１０の正立時に、後述する第２経路Ｌ２に進入し、正立時弁座６４ｄに当接して、倒立時導入口６５ａと中継口６４ｃとの連通を遮断する。第１の切替弁６１は、正立時弁座６４ｄの上方に配置されている。第１の切替弁６１は、例えばボール弁であり、正立時弁座６４ｄに対して上方に離反自在に当接している。 The upper end opening of the first inner cylinder portion 76 constitutes the upper end opening 64b of the inner cylinder member 64. An upright valve seat 64d facing upward is formed on the inner circumferential surface of the lower portion of the first inner cylinder portion 76. The upright valve seat 64d extends radially inward as it extends downward.
When the dispenser 10 is in the upright position, the first switching valve 61 enters the second path L2 described later and abuts against the upright valve seat 64d to block communication between the inverted inlet 65a and the relay port 64c. The first switching valve 61 is disposed above the upright valve seat 64d. The first switching valve 61 is, for example, a ball valve, and abuts against the upright valve seat 64d in an upwardly movable manner.

第２内筒部７７は、内筒部材６４の括れ部分を構成している。第２内筒部７７には、径方向に貫通する中継口６４ｃが周方向に間隔をあけて複数形成されている。 The second inner cylinder portion 77 constitutes the narrowed portion of the inner cylinder member 64. The second inner cylinder portion 77 has multiple radially penetrating relay ports 64c formed at intervals in the circumferential direction.

第３内筒部７８の下端開口が、内筒部材６４の下端開口６４ａとなっている。第３内筒部７８の下端部は、外筒部材６３の第３外筒部７３の上端部内に嵌合されている。第３内筒部７８の上部の内周面には、下方を向く倒立時弁座６４ｅが形成されている。倒立時弁座６４ｅは、上方に向かうに従い径方向の内側に向けて延びている。
第２の切替弁６２は、倒立時弁座６４ｅの下方に配置されている。第２の切替弁６２は、倒立時弁座６４ｅに対して下方から当接可能に配設されている。第２の切替弁６２は、吐出器１０の倒立時に、後述する第１経路Ｌ１に進入し、倒立時弁座６４ｅに当接して、正立時導入口６３ａと中継口６４ｃとの連通を遮断する。
倒立時弁座６４ｅには、第２の切替弁６２の貼り付きを防止する貼り付き防止部６４ｆが形成されている。貼り付き防止部６４ｆとしては、倒立時弁座６４ｅに放射状に設けられた溝またはリブを例示できるが、第２の切替弁６２の貼り付きを防止できる凹凸であれば適宜変更してもよい。倒立時弁座６４ｅに貼り付き防止部６４ｆを形成しなくてもよい。この場合、内筒部材６４を上下対称の形状に形成してもよく、また、吐出器１０の倒立時に、第２の切替弁６２と倒立時弁座６４ｅとの間のシール性が向上し、正立時導入口６３ａと中継口６４ｃとの連通を確実に遮断することができる。 The lower end opening of the third inner cylinder portion 78 constitutes the lower end opening 64a of the inner cylinder member 64. The lower end of the third inner cylinder portion 78 is fitted into the upper end of the third outer cylinder portion 73 of the outer cylinder member 63. An inverted valve seat 64e facing downward is formed on the inner circumferential surface of the upper part of the third inner cylinder portion 78. The inverted valve seat 64e extends radially inward as it extends upward.
The second switching valve 62 is disposed below the inverted valve seat 64e. The second switching valve 62 is disposed so as to be able to abut against the inverted valve seat 64e from below. When the dispenser 10 is inverted, the second switching valve 62 enters a first path L1 (described later) and abuts against the inverted valve seat 64e to block communication between the upright inlet 63a and the relay port 64c.
The inverted valve seat 64e is formed with a sticking prevention portion 64f for preventing the second switching valve 62 from sticking. The sticking prevention portion 64f may be, for example, a groove or rib radially provided on the inverted valve seat 64e, but may be changed as appropriate as long as it is an unevenness that can prevent the second switching valve 62 from sticking. The sticking prevention portion 64f may not be formed on the inverted valve seat 64e. In this case, the inner cylinder member 64 may be formed in a vertically symmetrical shape, and when the dispenser 10 is inverted, the sealing property between the second switching valve 62 and the inverted valve seat 64e is improved, and the communication between the upright inlet 63a and the relay port 64c can be reliably blocked.

流路形成部材６５の底壁部に、栓部（有頂筒状部）６５ｂと、共通流路６８と、が形成されている。 A plug portion (topped cylindrical portion) 65b and a common flow path 68 are formed in the bottom wall of the flow path forming member 65.

栓部６５ｂは、シール筒部６５ｃより径方向の内側に設けられている。栓部６５ｂは、流路形成部材６５の底壁部から上下方向の両側に突出し、栓部６５ｂのうち、流路形成部材６５の底壁部から下方に突出した部分が、内筒部材６４の上端開口６４ｂ内に嵌合されている。栓部６５ｂは、上下方向に延びる有頂筒状に形成されている。栓部６５ｂの周壁のうち、上端部より下方に位置する部分に、倒立時導入口６５ａが形成されている。倒立時導入口６５ａは、径方向に延び、流路形成部材６５の底壁部を径方向に貫いて、栓部６５ｂの内周面、および流路形成部材６５の外周面に開口し、取込孔６３ｃに連通している。 The plug portion 65b is provided radially inward from the sealing tube portion 65c. The plug portion 65b protrudes from the bottom wall portion of the flow path forming member 65 on both sides in the vertical direction, and the portion of the plug portion 65b that protrudes downward from the bottom wall portion of the flow path forming member 65 is fitted into the upper end opening 64b of the inner tube member 64. The plug portion 65b is formed in a topped tube shape extending in the vertical direction. An inverted inlet 65a is formed in a portion of the peripheral wall of the plug portion 65b that is located below the upper end. The inverted inlet 65a extends radially, penetrates the bottom wall portion of the flow path forming member 65 in the radial direction, opens on the inner peripheral surface of the plug portion 65b and the outer peripheral surface of the flow path forming member 65, and communicates with the intake hole 63c.

共通流路６８は、シリンダ部２１の内容液導入口２１ｆと中継口６４ｃとを連通している。共通流路６８は、流路形成部材６５の底壁部において、栓部６５ｂとシール筒部６５ｃとの間に位置する部分を上下方向に貫き、流路形成部材６５内に開口している。共通流路６８は、第１内筒部７６の上端開口縁に向けて開口している。
ここで、シール筒部６５ｃ内には、第１内筒部７６の上端部が挿入されている。シール筒部６５ｃの内周面と、第１内筒部７６の外周面と、の間には、周方向に延びる環状の隙間が設けられている。流路形成部材６５の底壁部の下面は、第１内筒部７６の上端開口縁から上方に離れており、シール筒部６５ｃの内周面と第１内筒部７６の外周面との間の環状の隙間は、共通流路６８に連通している。 The common flow path 68 communicates between the content liquid inlet 21f and the relay port 64c of the cylinder portion 21. The common flow path 68 vertically penetrates a portion of the bottom wall portion of the flow path forming member 65 that is located between the stopper portion 65b and the sealing tube portion 65c, and opens into the flow path forming member 65. The common flow path 68 opens toward the upper end opening edge of the first inner tube portion 76.
Here, the upper end of the first inner cylinder 76 is inserted into the sealing cylinder 65c. An annular gap extending in the circumferential direction is provided between the inner peripheral surface of the sealing cylinder 65c and the outer peripheral surface of the first inner cylinder 76. The lower surface of the bottom wall portion of the flow path forming member 65 is spaced upward from the upper end opening edge of the first inner cylinder 76, and the annular gap between the inner peripheral surface of the sealing cylinder 65c and the outer peripheral surface of the first inner cylinder 76 communicates with the common flow path 68.

ここで、本実施形態では、吐出器１０の正立時に、内容液が正立時導入口６３ａから中継口６４ｃに向かう第１経路Ｌ１に対して、第２の切替弁６２が進入するのを抑止する抑止部７５、および吐出器１０の倒立時に、内容液が倒立時導入口６５ａから中継口６４ｃに向かう第２経路Ｌ２に対して、第１の切替弁６１が進入するのを抑止する抑止部のうちの少なくとも一方を備えている。
なお、第１の切替弁６１に対する後者の抑止部は、栓部６５ｂに設けられる。 Here, in this embodiment, when the ejector 10 is in the upright position, at least one of a stopper section 75 that stops the second switching valve 62 from entering the first path L1 along which the content liquid flows from the inlet 63a when the ejector 10 is in the upright position to the relay port 64c, and a stopper section that stops the first switching valve 61 from entering the second path L2 along which the content liquid flows from the inlet 65a when the ejector 10 is inverted to the relay port 64c is provided.
The latter restricting portion for the first switching valve 61 is provided in the plug portion 65b.

図示の例では、外筒部材６３の内面における正立時導入口６３ａの開口周縁部に、上方に向けて突出し、正立時導入口６３ａを上方から覆う有頂筒状の被覆部５１が形成されている。被覆部５１の周壁には、径方向に開口し、正立時導入口６３ａと第３外筒部７３内とを連通する側方開口５１ａが形成されている。前述した第２の切替弁６２に対する抑止部７５は、被覆部５１の頂壁から上方に向けて突出している。 In the illustrated example, a cylindrical covering portion 51 with a top is formed on the inner surface of the outer cylinder member 63 at the periphery of the opening of the upright inlet 63a, protruding upward and covering the upright inlet 63a from above. A side opening 51a is formed on the peripheral wall of the covering portion 51, opening in the radial direction and communicating the upright inlet 63a with the inside of the third outer cylinder portion 73. The stopper portion 75 for the second switching valve 62 described above protrudes upward from the top wall of the covering portion 51.

抑止部７５の、被覆部５１の頂壁から上方に向けた突出量は、第２の切替弁６２の外径と同等になっている。図３に示されるように、抑止部７５は、上下方向から見て、表面が、径方向のうち、側方開口５１ａが開口している側を向く板状に形成されている。抑止部７５は、被覆部５１の頂壁において、径方向のうち側方開口５１ａが開口している側の端部に位置している。図２に示されるように、上下方向に沿う縦断面視において、抑止部７５の表面は、側方開口５１ａの開口面と同一直線上に位置している。抑止部７５が、前述したような板状に形成されていることから、例えば全周にわたって連続して延びる筒状に形成された構成等と比べて、スペース上の制約を生じさせにくくすることができる。 The amount of protrusion of the suppression portion 75 upward from the top wall of the covering portion 51 is equal to the outer diameter of the second switching valve 62. As shown in FIG. 3, the suppression portion 75 is formed in a plate shape with a surface facing the side where the side opening 51a is open in the radial direction when viewed from the top-bottom direction. The suppression portion 75 is located at the end of the top wall of the covering portion 51 on the side where the side opening 51a is open in the radial direction. As shown in FIG. 2, in a vertical cross-sectional view along the top-bottom direction, the surface of the suppression portion 75 is located on the same line as the opening surface of the side opening 51a. Since the suppression portion 75 is formed in a plate shape as described above, it is possible to reduce space constraints compared to, for example, a configuration in which the suppression portion 75 is formed in a cylindrical shape that extends continuously around the entire circumference.

第３外筒部７３の内周面のうち、抑止部７５の裏面と径方向で対向する部分と、抑止部７５の裏面と、の間の間隔は、第２の切替弁６２の外径より大きくなっている。第３外筒部７３の内周面のうち、被覆部５１の周壁の外周面と径方向で対向する部分と、被覆部５１の周壁の外周面と、の間の間隔は、第２の切替弁６２の外径より小さくなっている。
第２の切替弁６２は、吐出器１０の正立時に、抑止部７５の裏面と、被覆部５１の頂壁の上面と、第３外筒部７３の内周面と、で囲まれた空間に位置する。 The distance between the back surface of the suppression portion 75 and a portion of the inner circumferential surface of the third outer tube portion 73 that faces the back surface of the suppression portion 75 in the radial direction is larger than the outer diameter of the second changeover valve 62. The distance between the outer circumferential surface of the suppression portion 75 and a portion of the inner circumferential surface of the third outer tube portion 73 that faces the outer circumferential surface of the peripheral wall of the covering portion 51 in the radial direction is smaller than the outer diameter of the second changeover valve 62.
When the dispenser 10 is upright, the second switching valve 62 is located in a space surrounded by the back surface of the stopper portion 75 , the upper surface of the top wall of the covering portion 51 , and the inner circumferential surface of the third outer cylinder portion 73 .

第３外筒部７３の内周面のうち、側方開口５１ａおよび抑止部７５の表面と径方向で対向する部分と、側方開口５１ａおよび抑止部７５の表面と、の間の間隔は、第２の切替弁６２の外径より大きくなっている。
第３外筒部７３の内周面のうち、側方開口５１ａおよび抑止部７５の表面と径方向で対向する部分と、側方開口５１ａおよび抑止部７５の表面と、の間が、内容液が正立時導入口６３ａから中継口６４ｃに向かう第１経路Ｌ１の入口部分とされ、第３外筒部７３の内側には、吐出器１０の正立時に、前記入口部分に進入しようとした第２の切替弁６２を、抑止部７５の裏面側に導く案内部５２が設けられている。 The distance between the portion of the inner surface of the third outer tube portion 73 that radially faces the side opening 51a and the surface of the restraining portion 75 and the side opening 51a and the surface of the restraining portion 75 is larger than the outer diameter of the second switching valve 62.
The portion of the inner surface of the third outer tube portion 73 that is radially opposed to the side opening 51a and the surface of the stopper portion 75 and the portion between the side opening 51a and the surface of the stopper portion 75 constitutes an inlet portion of the first path L1 through which the content liquid flows from the inlet 63a to the relay port 64c when the nozzle 10 is in the upright position, and a guide portion 52 is provided on the inside of the third outer tube portion 73 to guide the second switching valve 62 that attempts to enter the inlet portion to the back side of the stopper portion 75 when the dispenser 10 is in the upright position.

案内部５２は、第３外筒部７３の内周面のうち、側方開口５１ａおよび抑止部７５の表面と径方向で対向する部分から径方向の内側に向けて突出している。案内部５２は、第３外筒部７３の下端部から上方に向けて延びている。案内部５２の上端部は、抑止部７５の上端部より上方に位置し、内筒部材６４の下端部と上下方向で突き当たっている。案内部５２の上端部は、上方に向かうに従い径方向の外側に向けて延びている。案内部５２は、表裏面が周方向を向く板状に形成されている。図３に示されるように、案内部５２は、第３外筒部７３の内周面のうち、側方開口５１ａおよび抑止部７５それぞれの周方向の中央部と径方向で対向する部分を周方向に挟む両側に位置する部分に、１つずつ設けられている。 The guide portion 52 protrudes radially inward from a portion of the inner circumferential surface of the third outer tube portion 73 that faces the side opening 51a and the surface of the suppressing portion 75 in the radial direction. The guide portion 52 extends upward from the lower end of the third outer tube portion 73. The upper end of the guide portion 52 is located above the upper end of the suppressing portion 75 and abuts against the lower end of the inner tube member 64 in the vertical direction. The upper end of the guide portion 52 extends radially outward as it moves upward. The guide portion 52 is formed in a plate shape with the front and back surfaces facing the circumferential direction. As shown in FIG. 3, the guide portion 52 is provided on both sides of the inner circumferential surface of the third outer tube portion 73 that sandwich the portion that faces the circumferential center of the side opening 51a and the suppressing portion 75 in the radial direction.

ここで、本実施形態では、吐出器１０の正立時に、第２の切替弁６２を進入させて、第１経路Ｌ１に対して、倒立時弁座６４ｅの反対側で、かつ正立時導入口６３ａの開口方向に交差する方向に、第２の切替弁６２を離す退避凹部、および吐出器１０の倒立時に、第１の切替弁６１を進入させて、第２経路Ｌ２に対して、正立時弁座６４ｄの反対側で、かつ倒立時導入口６５ａの開口方向に交差する方向に、第１の切替弁６１を離す退避凹部６９のうちの少なくとも一方を備えている。 Here, in this embodiment, when the dispenser 10 is in the upright position, the second switching valve 62 is inserted into a retraction recess that separates the second switching valve 62 from the first path L1 on the opposite side of the inverted valve seat 64e and in a direction that intersects with the opening direction of the inlet 63a when in the upright position, and when the dispenser 10 is inverted, the first switching valve 61 is inserted into a retraction recess 69 that separates the first switching valve 61 from the second path L2 on the opposite side of the inverted valve seat 64d and in a direction that intersects with the opening direction of the inlet 65a when inverted.

なお、第２の切替弁６２に対する前者の退避凹部としては、例えば、第３外筒部７３の内周面のうち、被覆部５１の周壁の外周面と径方向で対向する部分と、被覆部５１の周壁の外周面と、の間の間隔を、第２の切替弁６２の外径より大きくしたうえで、この隙間部分を、正立時導入口６３ａよりも下方に窪ませた構成等を採用することができる。 The former recess for the second switching valve 62 may be, for example, a configuration in which the gap between the portion of the inner circumferential surface of the third outer tube 73 that faces the outer circumferential surface of the peripheral wall of the covering portion 51 in the radial direction and the outer circumferential surface of the peripheral wall of the covering portion 51 is made larger than the outer diameter of the second switching valve 62, and this gap is recessed below the upright inlet 63a.

図示の例では、栓部６５ｂの内側において、倒立時導入口６５ａより上方に位置する部分が、吐出器１０の倒立時に、第１の切替弁６１が進入する退避凹部６９とされている。図４に示されるように、退避凹部６９に進入した第１の切替弁６１は、第２経路Ｌ２から上下方向、つまり第２経路Ｌ２から倒立時導入口６５ａの開口方向に交差する方向に離れる。 In the illustrated example, the portion inside the plug portion 65b that is located above the inverted inlet 65a is the retreat recess 69 into which the first switching valve 61 enters when the dispenser 10 is inverted. As shown in FIG. 4, the first switching valve 61 that enters the retreat recess 69 leaves the second path L2 in the vertical direction, that is, in the direction that intersects with the opening direction of the inverted inlet 65a from the second path L2.

次に、吐出器１０の作用を説明する。 Next, the function of the dispenser 10 will be explained.

レバー部２６を突出部２５ｂの上端部回りに下方に向けて回転させ、吐出ヘッド１２を押し下げると、ピストン部２２が吐出ヘッド１２とともに、第１付勢部材２３の付勢力に抗して押し下げられる。この際、ピストン部２２の摺動部２２ａが、シリンダ部２１の内周面を下方に向けて摺動し、シリンダ部２１の内容積が減少することで、シリンダ部２１内が加圧される。シリンダ部２１の内圧上昇により、シリンダ部２１内の下部弁体２４が、弁座部２１ｅに密接し、シリンダ部２１内と容器本体Ｗ内との連通を遮断する。これにより、シリンダ部２１内で加圧された内容液が、ピストン部２２の筒部２２ｂ内を上昇し、吐出ヘッド１２の縦筒１２ｂ内を通して横筒１２ａの後部内に流入することで、横筒１２ａの後部内が加圧される。そして、横筒１２ａの後部の内圧が所定値を超えたときに、蓄圧弁２８が第２付勢部材２９の付勢力に抗して後方に移動することで、縦筒１２ｂ内と吐出孔１２ｃとが連通し、内容液が吐出孔１２ｃから吐出される。
その後、吐出ヘッド１２の押し下げを解除すると、第１付勢部材２３の上方付勢力によってピストン部２２が吐出ヘッド１２とともに上昇する。 When the lever portion 26 is rotated downward around the upper end of the protruding portion 25b to push down the discharge head 12, the piston portion 22 is pushed down together with the discharge head 12 against the biasing force of the first biasing member 23. At this time, the sliding portion 22a of the piston portion 22 slides downward on the inner circumferential surface of the cylinder portion 21, and the internal volume of the cylinder portion 21 is reduced, so that the inside of the cylinder portion 21 is pressurized. Due to the increase in the internal pressure of the cylinder portion 21, the lower valve body 24 in the cylinder portion 21 is brought into close contact with the valve seat portion 21e, blocking communication between the inside of the cylinder portion 21 and the inside of the container body W. As a result, the content liquid pressurized in the cylinder portion 21 rises inside the tube portion 22b of the piston portion 22 and flows into the rear part of the horizontal tube 12a through the vertical tube 12b of the discharge head 12, so that the rear part of the horizontal tube 12a is pressurized. When the internal pressure at the rear of the horizontal tube 12a exceeds a predetermined value, the pressure accumulator valve 28 moves rearward against the biasing force of the second biasing member 29, thereby connecting the inside of the vertical tube 12b to the discharge hole 12c, and the content liquid is discharged from the discharge hole 12c.
Thereafter, when the downward pressure on the discharge head 12 is released, the piston portion 22 rises together with the discharge head 12 due to the upward biasing force of the first biasing member 23 .

ピストン部２２がシリンダ部２１の内周面を上方に向けて摺動すると、シリンダ部２１の内周面とピストン部２２の内周面とで囲まれた空間が増加し、シリンダ部２１内が減圧される。シリンダ部２１の内圧減少により、下部弁体２４が弁座部２１ｅの上面から上方に離反し、内容液導入口２１ｆが開放され、内容液導入口２１ｆから中継口６４ｃに至る主流路が減圧状態になる。 When the piston portion 22 slides upward on the inner circumferential surface of the cylinder portion 21, the space enclosed by the inner circumferential surface of the cylinder portion 21 and the inner circumferential surface of the piston portion 22 increases, and the pressure inside the cylinder portion 21 is reduced. Due to the reduction in the internal pressure of the cylinder portion 21, the lower valve body 24 moves upward away from the upper surface of the valve seat portion 21e, the content liquid inlet port 21f is opened, and the main flow path from the content liquid inlet port 21f to the relay port 64c is reduced in pressure.

この主流路は、流路形成部材６５の内側、共通流路６８、流路形成部材６５の底壁部の下面と第１内筒部７６の上端開口縁との間の隙間、シール筒部６５ｃの内周面と第１内筒部７６の外周面との間の隙間、第２外筒部７２の内周面と第１内筒部７６の外周面との間の隙間、並びに第２外筒部７２の内周面と第２内筒部７７の外周面との間の隙間を備えている。 This main flow path includes the inside of the flow path forming member 65, the common flow path 68, the gap between the lower surface of the bottom wall portion of the flow path forming member 65 and the upper end opening edge of the first inner cylinder portion 76, the gap between the inner peripheral surface of the sealing cylinder portion 65c and the outer peripheral surface of the first inner cylinder portion 76, the gap between the inner peripheral surface of the second outer cylinder portion 72 and the outer peripheral surface of the first inner cylinder portion 76, and the gap between the inner peripheral surface of the second outer cylinder portion 72 and the outer peripheral surface of the second inner cylinder portion 77.

主流路が減圧状態になると、吐出器１０の正立時では、第１の切替弁６１が正立時弁座６４ｄに密接し、倒立時導入口６５ａと中継口６４ｃとの連通が遮断されているため、中継口６４ｃおよび第２内筒部７７内を通して第３内筒部７８内および第３外筒部７３内が減圧される。これにより、内容液導入口２１ｆから主流路、中継口６４ｃ、第２内筒部７７内、第３内筒部７８内、第３外筒部７３内、正立時導入口６３ａ、および吸引筒６７内を経て容器本体Ｗ内に至る正立時用流路が減圧状態になり、容器本体Ｗ内の内容液がシリンダ部２１内に吸い上げられる。 When the main flow path is depressurized, the first switching valve 61 is in close contact with the upright valve seat 64d when the dispenser 10 is in the upright position, and communication between the inlet 65a when inverted and the relay port 64c is blocked, so the third inner cylinder 78 and the third outer cylinder 73 are depressurized through the relay port 64c and the second inner cylinder 77. As a result, the upright flow path from the content liquid inlet 21f through the main flow path, the relay port 64c, the second inner cylinder 77, the third inner cylinder 78, the third outer cylinder 73, the upright inlet 63a, and the suction tube 67 to the container body W is depressurized, and the content liquid in the container body W is sucked up into the cylinder 21.

この際、第２の切替弁６２は、正立時導入口６３ａから中継口６４ｃに向かう内容液の第１経路Ｌ１に対して、抑止部７５により隔てられており、第１経路Ｌ１を流れる内容液が、第２の切替弁６２に接触することが抑えられる。 At this time, the second switching valve 62 is separated from the first path L1 of the liquid contents that flows from the inlet 63a to the relay port 64c when the container is in the upright position by the stopper 75, and the liquid contents flowing through the first path L1 is prevented from coming into contact with the second switching valve 62.

一方、吐出器１０の倒立時には、図４に示されるように、第１の切替弁６１が自重により正立時弁座６４ｄから離反して、倒立時導入口６５ａと中継口６４ｃとが連通し、かつ第２の切替弁６２が自重により倒立時弁座６４ｅに密接して、正立時導入口６３ａと中継口６４ｃとの連通を遮断する。この状態で、内容液の吐出後に吐出ヘッド１２が復元移動すると、前述した吐出器１０の正立時と同様に、下部弁体２４が弁座部２１ｅから離反して内容液導入口２１ｆが開放され、内容液導入口２１ｆから中継口６４ｃに至る主流路が減圧状態になることから、中継口６４ｃから倒立時導入口６５ａを通して取込孔６３ｃに至る倒立時用流路も減圧状態になる。 On the other hand, when the dispenser 10 is inverted, as shown in FIG. 4, the first switching valve 61 moves away from the upright valve seat 64d due to its own weight, and the inverted inlet 65a and the relay port 64c are connected, and the second switching valve 62 moves in close contact with the inverted valve seat 64e due to its own weight, blocking the connection between the upright inlet 63a and the relay port 64c. In this state, when the discharge head 12 moves back to its original position after discharging the content liquid, the lower valve body 24 moves away from the valve seat 21e, opening the content liquid inlet 21f, as in the case of the above-mentioned dispenser 10 in the upright position, and the main flow path from the content liquid inlet 21f to the relay port 64c is in a reduced pressure state, so that the inverted flow path from the relay port 64c to the intake hole 63c through the inverted inlet 65a is also in a reduced pressure state.

この倒立時用流路は、第２内筒部７７の内側、第１内筒部７６の内側、栓部６５ｂの内側、倒立時導入口６５ａ、並びに流路形成部材６５の外周面と第１外筒部７１の内周面との間の隙間を備えている。
倒立時用流路が減圧状態になると、吐出器１０の倒立時では、容器本体Ｗ内の内容液が、取込孔６３ｃ、倒立時用流路、中継口６４ｃ、および主流路を通して内容液導入口２１ｆに導入される。 This inverted flow path includes the inside of the second inner tube portion 77, the inside of the first inner tube portion 76, the inside of the plug portion 65b, the inverted inlet 65a, and a gap between the outer peripheral surface of the flow path forming member 65 and the inner peripheral surface of the first outer tube portion 71.
When the inverted flow path is in a reduced pressure state, the liquid contents in the container body W are introduced into the liquid contents inlet 21f through the inverted flow path, the relay port 64c, and the main flow path when the dispenser 10 is inverted.

吐出器１０の倒立時に、第１の切替弁６１は、栓部６５ｂ内に進入して、栓部６５ｂ内の退避凹部６９に到達し、栓部６５ｂの頂壁に当接する。この際、第１の切替弁６１は、倒立時導入口６５ａから上下方向に離れている。これにより、第１の切替弁６１は、倒立時導入口６５ａから中継口６４ｃに向かう内容液の第２経路Ｌ２から上下方向に離れ、第２経路Ｌ２を流れる内容液が、第１の切替弁６１に接触することが抑えられる。 When the dispenser 10 is inverted, the first switching valve 61 enters the plug portion 65b, reaches the retreat recess 69 in the plug portion 65b, and abuts against the top wall of the plug portion 65b. At this time, the first switching valve 61 is vertically separated from the inlet port 65a when inverted. As a result, the first switching valve 61 is vertically separated from the second path L2 of the content liquid that flows from the inlet port 65a when inverted to the relay port 64c, and the content liquid flowing through the second path L2 is prevented from coming into contact with the first switching valve 61.

以上説明したように、本実施形態による正倒立用ユニット１によれば、吐出器１０の正立時に、第１経路Ｌ１に対して第２の切替弁６２が進入するのを抑止する抑止部７５、および吐出器１０の倒立時に、第２経路Ｌ２に対して第１の切替弁６１が進入するのを抑止する抑止部のうちの少なくとも一方の抑止部を備えているので、容器本体Ｗ内の内容液が、内容液導入口２１ｆに導入される際、吐出器１０の正立時に、第１経路Ｌ１を流れる内容液が第２の切替弁６２に接触して、第２の切替弁６２が、内容液の液流に乗って倒立時弁座６４ｅに向けて接近すること、および吐出器１０の倒立時に、第２経路Ｌ２を流れる内容液が第１の切替弁６１に接触して、第１の切替弁６１が、内容液の液流に乗って正立時弁座６４ｄに向けて接近すること、の少なくとも一方を防ぐことができる。 As described above, the inverted/normal unit 1 according to this embodiment includes at least one of the stopper 75 that stops the second switching valve 62 from entering the first path L1 when the dispenser 10 is in the upright position, and the stopper that stops the first switching valve 61 from entering the second path L2 when the dispenser 10 is in the inverted position. This prevents at least one of the following when the liquid content in the container body W is introduced into the liquid content inlet 21f: when the dispenser 10 is in the upright position, the liquid content flowing through the first path L1 comes into contact with the second switching valve 62, and the second switching valve 62 rides on the liquid content flow and moves toward the inverted valve seat 64e; and when the dispenser 10 is inverted, the liquid content flowing through the second path L2 comes into contact with the first switching valve 61, and the first switching valve 61 rides on the liquid content flow and moves toward the upright valve seat 64d.

これにより、内容液が、内容液導入口２１ｆに導入される際、吐出器１０の正立時に、第２の切替弁６２が、中継口６４ｃを通して及ぼされるシリンダ部２１内の減圧によって倒立時弁座６４ｅに押し当てられること、および吐出器１０の倒立時に、第１の切替弁６１が、中継口６４ｃを通して及ぼされるシリンダ部２１内の減圧によって正立時弁座６４ｄに押し当てられること、の少なくとも一方を防ぐことが可能になり、容器本体Ｗ内の内容液をシリンダ部２１内に円滑に導入することができる。 This makes it possible to prevent at least one of the following when the liquid contents are introduced into the liquid contents inlet 21f: when the dispenser 10 is upright, the second switching valve 62 is pressed against the inverted valve seat 64e due to the reduced pressure in the cylinder section 21 exerted through the relay port 64c; and when the dispenser 10 is upright, the first switching valve 61 is pressed against the upright valve seat 64d due to the reduced pressure in the cylinder section 21 exerted through the relay port 64c. This allows the liquid contents in the container body W to be smoothly introduced into the cylinder section 21.

被覆部５１の周壁に、正立時導入口６３ａと外筒部材６３内とを連通する側方開口５１ａが形成され、抑止部７５が、被覆部５１の頂壁から上方に向けて突出しているので、吐出器１０の正立時に、第２の切替弁６２を、抑止部７５の裏面と、被覆部５１の頂壁の上面と、外筒部材６３の内周面と、で囲まれた空間に位置させることで、第２の切替弁６２が第１経路Ｌ１に進入するのを確実に抑止することができる。 A side opening 51a is formed in the peripheral wall of the covering portion 51, which connects the inlet 63a to the inside of the outer tube member 63 when the nozzle is in the upright position, and the preventing portion 75 protrudes upward from the top wall of the covering portion 51. Therefore, when the dispenser 10 is in the upright position, the second switching valve 62 is positioned in the space surrounded by the back surface of the preventing portion 75, the upper surface of the top wall of the covering portion 51, and the inner peripheral surface of the outer tube member 63, thereby reliably preventing the second switching valve 62 from entering the first path L1.

外筒部材６３の内側に、吐出器１０の正立時に、第１経路Ｌ１の前記入口部分に進入しようとした第２の切替弁６２を、抑止部７５の裏面側に導く案内部５２が設けられているので、第２の切替弁６２が第１経路Ｌ１に進入するのを確実に抑止することができる。 A guide portion 52 is provided inside the outer tube member 63 to guide the second switching valve 62, which is about to enter the inlet portion of the first path L1 when the dispenser 10 is upright, to the back side of the prevention portion 75, so that the second switching valve 62 can be reliably prevented from entering the first path L1.

吐出器１０の正立時に、第２の切替弁６２を進入させて、第１経路Ｌ１に対して、倒立時弁座６４ｅの反対側で、かつ正立時導入口６３ａの開口方向に交差する方向に、第２の切替弁６２を離す退避凹部、および吐出器１０の倒立時に、第１の切替弁６１を進入させて、第２経路Ｌ２に対して、正立時弁座６４ｄの反対側で、かつ倒立時導入口６５ａの開口方向に交差する方向に、第１の切替弁６１を離す退避凹部６９のうちの少なくとも一方の退避凹部を備えているので、容器本体Ｗ内の内容液が、内容液導入口２１ｆに導入される際、吐出器１０の正立時に、第１経路Ｌ１を流れる内容液が第２の切替弁６２に接触して、第２の切替弁６２が、内容液の液流に乗って倒立時弁座６４ｅに向けて接近すること、および吐出器１０の倒立時に、第２経路Ｌ２を流れる内容液が第１の切替弁６１に接触して、第１の切替弁６１が、内容液の液流に乗って正立時弁座６４ｄに向けて接近すること、の少なくとも一方を防ぐことができる。 When the dispenser 10 is in the upright position, the second switching valve 62 is inserted into the retraction recess, which separates the second switching valve 62 from the first path L1 on the opposite side of the inverted valve seat 64e and in a direction intersecting the opening direction of the inlet 63a when in the upright position, and when the dispenser 10 is inverted, the first switching valve 61 is inserted into the retraction recess 69, which separates the first switching valve 61 from the second path L2 on the opposite side of the inverted valve seat 64d and in a direction intersecting the opening direction of the inlet 65a when in the upright position. Therefore, when the liquid contents in the container body W are introduced into the liquid contents inlet 21f, it is possible to prevent at least one of the following: when the dispenser 10 is in the upright position, the liquid contents flowing through the first path L1 comes into contact with the second switching valve 62, and the second switching valve 62 moves with the flow of the liquid contents toward the inverted valve seat 64e; and when the dispenser 10 is inverted, the liquid contents flowing through the second path L2 comes into contact with the first switching valve 61, and the first switching valve 61 moves with the flow of the liquid contents toward the upright valve seat 64d.

内容液導入口２１ｆと中継口６４ｃとを連通する共通流路６８が形成された流路形成部材６５が、栓部（有頂筒状部）６５ｂを備え、栓部６５ｂの内側において、倒立時導入口６５ａより上方に位置する部分が、吐出器１０の倒立時に、第１の切替弁６１が進入する退避凹部６９とされているので、構造の複雑化を抑えつつ、容器本体Ｗ内の内容液をシリンダ部２１内に円滑に導入することが可能な正倒立用ユニット１が得られる。 The flow path forming member 65, in which a common flow path 68 is formed that connects the content liquid inlet 21f and the relay port 64c, is provided with a stopper portion (topped cylindrical portion) 65b, and the portion inside the stopper portion 65b that is located above the inverted inlet 65a is made into a retreat recess 69 into which the first switching valve 61 enters when the dispenser 10 is inverted, thereby obtaining a normal inverted unit 1 that can smoothly introduce the content liquid in the container body W into the cylinder portion 21 while minimizing structural complexity.

次に、本発明の第２実施形態に係る正倒立用ユニット２を、図５～図７を参照しながら説明する。
なお、この第２実施形態においては、第１実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。 Next, a description will be given of an inverted stand unit 2 according to a second embodiment of the present invention with reference to FIGS.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted, with only the differences being described.

正倒立用ユニット２は、ポンプ１１１と、吐出ヘッド１１２と、装着キャップ１４と、を備える吐出器１１０の一部を構成する。
まず、ポンプ１１１、および吐出ヘッド１１２について説明する。 The normal/inverted unit 2 constitutes a part of a discharger 110 including a pump 111 , a discharge head 112 , and an attachment cap 14 .
First, the pump 111 and the ejection head 112 will be described.

ポンプ１１１は、シリンダ部２１と、ピストン部２２と、第１付勢部材２３と、下部弁体２４と、下支持筒８１と、ステム８２と、蓄圧機構１２０と、を備えている。 The pump 111 includes a cylinder portion 21, a piston portion 22, a first biasing member 23, a lower valve body 24, a lower support tube 81, a stem 82, and a pressure accumulation mechanism 120.

下支持筒８１およびステム８２は、軸線Ｏと同軸に配設されている。
下支持筒８１は、シリンダ部２１の上端部内に嵌合されている。
ステム８２は、ステム筒８２ａと、上支持筒８２ｂと、を備えている。
上支持筒８２ｂは、軸線Ｏと同軸に配置された二重筒状に形成されている。上支持筒８２ｂは、ステム筒８２ａの周囲を取り囲んでいる。上支持筒８２ｂの上端部は、ステム筒８２ａの上端部より下方に位置している。上支持筒８２ｂは、周方向に並ぶ複数の連結片８２ｃを介してステム筒８２ａに接続されている。
第１付勢部材２３は、ステム筒８２ａの周囲を取り囲んだ状態で、上支持筒８２ｂおよび下支持筒８１により上下方向に挟まれている。これにより、第１付勢部材２３は、ステム８２を上方付勢状態で下方移動可能に支持している。
蓄圧機構１２０は、蓄圧シリンダ１２１と、蓄圧ピストン１２２と、蓄圧弁体１２３と、第３付勢部材１２４と、を備えている。蓄圧機構１２０は、シリンダ部２１内の内容液を、ピストン部２２の下降により吐出孔１２ｃに向けて送り出すときに、シリンダ部２１内を補助的に加圧する。 The lower support cylinder 81 and the stem 82 are arranged coaxially with the axis O.
The lower support cylinder 81 is fitted into the upper end portion of the cylinder portion 21 .
The stem 82 includes a stem tube 82a and an upper support tube 82b.
The upper support tube 82b is formed in a double-cylinder shape arranged coaxially with the axis O. The upper support tube 82b surrounds the stem tube 82a. The upper end of the upper support tube 82b is located lower than the upper end of the stem tube 82a. The upper support tube 82b is connected to the stem tube 82a via a plurality of connecting pieces 82c arranged in the circumferential direction.
The first biasing member 23 surrounds the stem tube 82a and is sandwiched in the vertical direction between the upper support tube 82b and the lower support tube 81. As a result, the first biasing member 23 supports the stem 82 in an upward biased state so as to be movable downward.
The pressure accumulating mechanism 120 includes a pressure accumulating cylinder 121, a pressure accumulating piston 122, a pressure accumulating valve body 123, and a third biasing member 124. The pressure accumulating mechanism 120 supplementarily pressurizes the inside of the cylinder portion 21 when the content liquid in the cylinder portion 21 is sent toward the discharge hole 12c by the downward movement of the piston portion 22.

蓄圧シリンダ１２１は、ピストン部２２の摺動部２２ａの上方に設けられ、軸線Ｏと同軸に配置された筒状に形成されている。蓄圧シリンダ１２１およびピストン部２２は一体に形成されている。蓄圧シリンダ１２１は、下支持筒８１を上下方向に貫通している。蓄圧シリンダ１２１の下端開口部は、シリンダ部２１内に位置している。蓄圧シリンダ１２１の下端縁は、下支持筒８１よりも下方に位置し、かつピストン部２２の摺動部２２ａに接続されている。蓄圧シリンダ１２１の上端部は、ステム筒８２ａと上支持筒８２ｂとの間に挿入されている。蓄圧シリンダ１２１の上端縁と、連結片８２ｃと、の間には、上下方向の隙間が設けられている。なお、蓄圧シリンダ１２１とピストン部２２とは、別体で形成されていてもよい。 The accumulator cylinder 121 is provided above the sliding portion 22a of the piston portion 22 and is formed in a cylindrical shape arranged coaxially with the axis O. The accumulator cylinder 121 and the piston portion 22 are formed integrally. The accumulator cylinder 121 penetrates the lower support tube 81 in the vertical direction. The lower end opening of the accumulator cylinder 121 is located inside the cylinder portion 21. The lower end edge of the accumulator cylinder 121 is located below the lower support tube 81 and is connected to the sliding portion 22a of the piston portion 22. The upper end of the accumulator cylinder 121 is inserted between the stem tube 82a and the upper support tube 82b. A vertical gap is provided between the upper end edge of the accumulator cylinder 121 and the connecting piece 82c. The accumulator cylinder 121 and the piston portion 22 may be formed as separate bodies.

蓄圧ピストン１２２は、蓄圧シリンダ１２１とステム筒８２ａとの間に跨って配置されている。蓄圧ピストン１２２は、軸線Ｏと同軸に配置されるとともに、上方に位置するものほど外径が小さい多段筒状に形成されている。蓄圧ピストン１２２は、上方に位置するピストン小径部１２２ａがステム筒８２ａの下端開口部を通じてステム筒８２ａ内に挿入され、下方に位置するピストン大径部１２２ｂが蓄圧シリンダ１２１内に嵌め込まれている。蓄圧ピストン１２２が、蓄圧シリンダ１２１に対して上下動する際、ピストン大径部１２２ｂは、蓄圧シリンダ１２１の内周面上を上下方向に密に摺動する。ピストン大径部１２２ｂは、蓄圧シリンダ１２１の内周面に形成された係止突起１２１ａより上方に位置している。 The pressure accumulator piston 122 is disposed between the pressure accumulator cylinder 121 and the stem tube 82a. The pressure accumulator piston 122 is disposed coaxially with the axis O and is formed in a multi-stage cylindrical shape with the outer diameter of the piston 122 being smaller as it is positioned higher. The piston small diameter portion 122a located at the top is inserted into the stem tube 82a through the lower end opening of the stem tube 82a, and the piston large diameter portion 122b located at the bottom is fitted into the pressure accumulator cylinder 121. When the pressure accumulator piston 122 moves up and down relative to the pressure accumulator cylinder 121, the piston large diameter portion 122b slides closely in the up and down direction on the inner peripheral surface of the pressure accumulator cylinder 121. The piston large diameter portion 122b is located above the locking projection 121a formed on the inner peripheral surface of the pressure accumulator cylinder 121.

蓄圧弁体１２３は、ステム筒８２ａと蓄圧ピストン１２２との間に跨って配置されている。蓄圧弁体１２３は、柱体１２３ａと、着座部１２３ｂと、を備えている。
柱体１２３ａは、軸線Ｏと同軸に配置された円柱状に形成されている。柱体１２３ａの上端部は、ステム筒８２ａ内に嵌合されて固定されている。蓄圧弁体１２３は、ステム８２と一体に上下動可能である。ステム筒８２ａの内周面のうち、柱体１２３ａが嵌合された部分には、連通溝８２ｄが形成されている。連通溝８２ｄは、上下方向に延びるとともに、周方向に間隔をあけて複数形成されている。ステム筒８２ａ内は、連通溝８２ｄを通じて上下方向に連通している。柱体１２３ａの外周面と、ピストン小径部１２２ａの内周面と、の間に、径方向の隙間が設けられている。
着座部１２３ｂは、柱体１２３ａにおける上下方向の中間部から径方向の外側に張り出している。着座部１２３ｂは、蓄圧ピストン１２２に対する上下動に伴い、ピストン小径部１２２ａの下端縁に対して接離可能に構成されている。すなわち、着座部１２３ｂがピストン小径部１２２ａの下端縁に着座することで、蓄圧ピストン１２２内を通じた蓄圧シリンダ１２１内とステム筒８２ａ内との連通を遮断する。一方、着座部１２３ｂがピストン小径部１２２ａの下端縁から下方に離間することで、蓄圧ピストン１２２内を通じて蓄圧シリンダ１２１内とステム筒８２ａ内とが連通する。 The accumulator valve body 123 is disposed across the stem cylinder 82a and the accumulator piston 122. The accumulator valve body 123 includes a column body 123a and a seat portion 123b.
The columnar body 123a is formed in a cylindrical shape arranged coaxially with the axis O. The upper end of the columnar body 123a is fitted and fixed in the stem tube 82a. The pressure accumulator valve body 123 can move up and down integrally with the stem 82. A communication groove 82d is formed in the inner peripheral surface of the stem tube 82a in a portion where the columnar body 123a is fitted. The communication grooves 82d extend in the vertical direction and are formed at intervals in the circumferential direction. The inside of the stem tube 82a is communicated in the vertical direction through the communication grooves 82d. A radial gap is provided between the outer peripheral surface of the columnar body 123a and the inner peripheral surface of the piston small diameter portion 122a.
The seating portion 123b protrudes radially outward from the vertical middle portion of the column body 123a. The seating portion 123b is configured to be able to approach and separate from the lower end edge of the piston small diameter portion 122a in accordance with the vertical movement relative to the pressure accumulator piston 122. That is, the seating portion 123b is seated on the lower end edge of the piston small diameter portion 122a, thereby blocking communication between the inside of the pressure accumulator cylinder 121 and the inside of the stem tube 82a through the inside of the pressure accumulator piston 122. On the other hand, the seating portion 123b is moved downwardly away from the lower end edge of the piston small diameter portion 122a, thereby connecting the inside of the pressure accumulator cylinder 121 and the inside of the stem tube 82a through the inside of the pressure accumulator piston 122.

第３付勢部材１２４は、上下方向に延びるコイルばねとなっている。第３付勢部材１２４は、蓄圧シリンダ１２１内において、ステム筒８２ａの下端部、およびピストン小径部１２２ａの周囲を取り囲んだ状態で、ステム筒８２ａと蓄圧ピストン１２２との間の上下方向の隙間に設けられている。第３付勢部材１２４は、蓄圧ピストン１２２を下方（着座部６３ｂ）に向けて付勢している。 The third biasing member 124 is a coil spring that extends in the vertical direction. The third biasing member 124 is provided in the vertical gap between the stem tube 82a and the pressure accumulator piston 122 in the pressure accumulator cylinder 121, surrounding the lower end of the stem tube 82a and the piston small diameter portion 122a. The third biasing member 124 biases the pressure accumulator piston 122 downward (towards the seating portion 63b).

吐出ヘッド１１２は、蓄圧弁２８、および第２付勢部材２９を有さず、ステム筒８２ａのうち、上支持筒８２ｂより上方に位置する上端部に外嵌されている。吐出孔１２ｃは、ステム筒８２ａ内に連通している。 The discharge head 112 does not have a pressure accumulator valve 28 or a second biasing member 29, and is fitted onto the upper end of the stem tube 82a, which is located above the upper support tube 82b. The discharge hole 12c is connected to the inside of the stem tube 82a.

吐出ヘッド１１２を押下すると、吐出ヘッド１１２とともに、ステム８２、蓄圧弁体１２３、および蓄圧ピストン１２２が一体となって下降する。この際、ステム８２、蓄圧弁体１２３、および蓄圧ピストン１２２は、ピストン大径部１２２ｂの下端縁と、蓄圧シリンダ１２１の係止突起１２１ａと、の間の上下方向の隙間分だけ蓄圧シリンダ１２１に対して下降する。このように、ピストン部２２よりも前に、ピストン部２２よりも径の小さい蓄圧ピストン１２２が下降（作動）するため、吐出ヘッド１１２を下降させる際の初期の押し下げ力を小さくすることができる。 When the discharge head 112 is pressed down, the stem 82, the pressure accumulator valve body 123, and the pressure accumulator piston 122 move down together with the discharge head 112. At this time, the stem 82, the pressure accumulator valve body 123, and the pressure accumulator piston 122 move down relative to the pressure accumulator cylinder 121 by the vertical gap between the lower edge of the piston large diameter portion 122b and the locking projection 121a of the pressure accumulator cylinder 121. In this way, the pressure accumulator piston 122, which has a smaller diameter than the piston portion 22, moves down (actuates) before the piston portion 22, so that the initial downward force when lowering the discharge head 112 can be reduced.

ピストン大径部１２２ｂの下端縁が、蓄圧シリンダ１２１の係止突起１２１ａに接触した後は、ピストン部２２も下降する。これにより、ピストン部２２の摺動部２２ａがシリンダ部２１の内周面上を摺動することで、シリンダ部２１内が加圧される。ピストン部２２が、これ以上の下降移動が規制される下降端位置に到達すると、ステム８２、および蓄圧弁体１２３が、第３付勢部材１２４の付勢力に抗して蓄圧ピストン１２２に対して下降する。これにより、着座部１２３ｂが、ピストン小径部１２２ａの下端縁に対して下方に離間する。すると、シリンダ部２１内の内容液は、蓄圧シリンダ１２１内、蓄圧ピストン１２２と蓄圧弁体１２３との間の隙間、および連通溝８２ｄを通じてステム筒８２ａ内に流入する。その後、内容液は、ステム筒８２ａの上端開口を通過し、吐出孔１２ｃを通じて前方に吐出される。 After the lower end edge of the piston large diameter portion 122b comes into contact with the locking projection 121a of the pressure accumulator cylinder 121, the piston portion 22 also descends. As a result, the sliding portion 22a of the piston portion 22 slides on the inner circumferential surface of the cylinder portion 21, pressurizing the inside of the cylinder portion 21. When the piston portion 22 reaches a lower end position where further downward movement is restricted, the stem 82 and the pressure accumulator valve body 123 descend relative to the pressure accumulator piston 122 against the biasing force of the third biasing member 124. As a result, the seating portion 123b is separated downward from the lower end edge of the piston small diameter portion 122a. Then, the content liquid in the cylinder portion 21 flows into the stem tube 82a through the pressure accumulator cylinder 121, the gap between the pressure accumulator piston 122 and the pressure accumulator valve body 123, and the communication groove 82d. The liquid then passes through the upper opening of the stem tube 82a and is discharged forward through the discharge hole 12c.

吐出ヘッド１１２の押下を解除すると、ステム８２および蓄圧弁体１２３が、第３付勢部材１２４の付勢力によって押し上げられ、着座部１２３ｂがピストン小径部１２２ａの下端縁に当接することで、シリンダ部２１内とステム筒８２ａ内との連通が遮断され、また、ステム８２が第１付勢部材２３の付勢力によって押し上げられ、ステム８２、蓄圧弁体１２３、蓄圧ピストン１２２、蓄圧シリンダ１２１、およびピストン部２２が、シリンダ部２１に対して上昇する。すると、シリンダ部２１内が負圧になることで、第１実施形態と同様に、内容液導入口２１ｆから内容液がシリンダ部２１内に供給される。 When the ejection head 112 is released from the depressed state, the stem 82 and the pressure accumulator valve body 123 are pushed up by the biasing force of the third biasing member 124, and the seating portion 123b comes into contact with the lower end edge of the piston small diameter portion 122a, thereby blocking communication between the inside of the cylinder portion 21 and the inside of the stem tube 82a. Also, the stem 82 is pushed up by the biasing force of the first biasing member 23, and the stem 82, the pressure accumulator valve body 123, the pressure accumulator piston 122, the pressure accumulator cylinder 121, and the piston portion 22 rise relative to the cylinder portion 21. Then, negative pressure is created inside the cylinder portion 21, and the content liquid is supplied into the cylinder portion 21 from the content liquid inlet 21f, as in the first embodiment.

正倒立用ユニット２は、第１の切替弁６１と、第２の切替弁６２と、外筒部材６３と、内筒部材６４と、流路形成部材６５と、第１連結部材８３と、第２連結部材８４と、を備えている。 The normal/inverted unit 2 includes a first switching valve 61, a second switching valve 62, an outer cylinder member 63, an inner cylinder member 64, a flow path forming member 65, a first connecting member 83, and a second connecting member 84.

外筒部材６３は、上方から下方に向けて、第１外筒部７１と、第５外筒部１６３と、第４外筒部７４と、がこの順に連ねられて構成されている。第５外筒部１６３内に、内筒部材６４の中継口６４ｃが開口している。第５外筒部１６３の下端開口が、上下方向に開口した正立時導入口６３ａとなっている。第５外筒部１６３の内面における正立時導入口６３ａの開口周縁部に、上方に向けて突出した第３連結筒部１６３ａが形成されている。
流路形成部材６５の底壁部に、栓部１６５ｂと、共通流路６８と、が形成されている。栓部１６５ｂは、シール筒部６５ｃより径方向の内側に設けられている。栓部１６５ｂは、流路形成部材６５の底壁部から上方には突出せず、下方に突出している。 The outer tube member 63 is configured by connecting the first outer tube portion 71, the fifth outer tube portion 163, and the fourth outer tube portion 74 in this order from top to bottom. The relay port 64c of the inner tube member 64 opens inside the fifth outer tube portion 163. The lower end opening of the fifth outer tube portion 163 serves as the upright position introduction port 63a that opens in the vertical direction. A third connecting tube portion 163a that protrudes upward is formed on the periphery of the opening of the upright position introduction port 63a on the inner surface of the fifth outer tube portion 163.
A plug portion 165b and a common flow passage 68 are formed in the bottom wall portion of the flow passage forming member 65. The plug portion 165b is provided radially inward from the sealing cylinder portion 65c. The plug portion 165b does not protrude upward from the bottom wall portion of the flow passage forming member 65, but protrudes downward.

第１連結部材８３は、上下方向に延びる筒状に形成され、流路形成部材６５と内筒部材６４とを上下方向に連結している。第１連結部材８３の上端部内に、流路形成部材６５の栓部１６５ｂが密に嵌合されている。第１連結部材８３の上端部は、シール筒部６５ｃ内に挿入されている。第１連結部材８３は、第１外筒部７１の下端部内、および第５外筒部１６３の上部内に跨って設けられている。第１連結部材８３の上端部の外周面と、シール筒部６５ｃの内周面と、の間、並びに、第１連結部材８３のうち、上端部より下方に位置する部分の外周面と、第５外筒部１６３の内周面と、の間にはそれぞれ、周方向に延びる環状の隙間が設けられている。第１連結部材８３の上端開口縁は、流路形成部材６５の底壁部の下面から下方に離れており、第１連結部材８３の外周面側の前記隙間は、共通流路６８に連通している。第１連結部材８３の下端部内に、内筒部材６４の第１内筒部７６の上端部が密に嵌合されている。 The first connecting member 83 is formed in a cylindrical shape extending in the vertical direction, and connects the flow path forming member 65 and the inner tube member 64 in the vertical direction. The plug portion 165b of the flow path forming member 65 is tightly fitted into the upper end portion of the first connecting member 83. The upper end portion of the first connecting member 83 is inserted into the sealing tube portion 65c. The first connecting member 83 is provided across the lower end portion of the first outer tube portion 71 and the upper portion of the fifth outer tube portion 163. An annular gap extending in the circumferential direction is provided between the outer peripheral surface of the upper end portion of the first connecting member 83 and the inner peripheral surface of the sealing tube portion 65c, and between the outer peripheral surface of the portion of the first connecting member 83 located below the upper end portion and the inner peripheral surface of the fifth outer tube portion 163. The upper end opening edge of the first connecting member 83 is separated downward from the lower surface of the bottom wall portion of the flow path forming member 65, and the gap on the outer peripheral surface side of the first connecting member 83 is connected to the common flow path 68. The upper end of the first inner cylinder portion 76 of the inner cylinder member 64 is tightly fitted into the lower end of the first connecting member 83.

第２連結部材８４は、上下方向に延びる筒状に形成され、内筒部材６４と、外筒部材６３の第３連結筒部１６３ａと、を上下方向に連結している。第２連結部材８４の上端部内に、内筒部材６４の第３内筒部７８の下端部が密に嵌合されている。第２連結部材８４の下端部内に、外筒部材６３の第３連結筒部１６３ａが密に嵌合されている。 The second connecting member 84 is formed in a cylindrical shape extending in the vertical direction, and connects the inner tube member 64 and the third connecting tube portion 163a of the outer tube member 63 in the vertical direction. The lower end of the third inner tube portion 78 of the inner tube member 64 is tightly fitted into the upper end of the second connecting member 84. The third connecting tube portion 163a of the outer tube member 63 is tightly fitted into the lower end of the second connecting member 84.

そして、本実施形態では、図６に示されるような吐出器１１０の正立時に、内容液が正立時導入口６３ａから中継口６４ｃに向かう第１経路Ｌ１に対して、第２の切替弁６２が進入するのを抑止する第１抑止部１７５ａ、および図７に示されるような吐出器１１０の倒立時に、内容液が倒立時導入口６５ａから中継口６４ｃに向かう第２経路Ｌ２に対して、第１の切替弁６１が進入するのを抑止する第２抑止部１７５ｂの双方が設けられている。
なお、第１抑止部１７５ａおよび第２抑止部１７５ｂのうちのいずれか一方のみを設けてもよい。 In this embodiment, when the ejector 110 is in the upright position as shown in Figure 6, a first prevention portion 175a is provided to prevent the second switching valve 62 from entering the first path L1 along which the content liquid flows from the inlet 63a when the ejector 110 is in the upright position to the relay port 64c, and when the ejector 110 is inverted as shown in Figure 7, a second prevention portion 175b is provided to prevent the first switching valve 61 from entering the second path L2 along which the content liquid flows from the inlet 65a when the ejector 110 is inverted to the relay port 64c.
It is to be noted that only one of the first inhibiting portion 175a and the second inhibiting portion 175b may be provided.

第１抑止部１７５ａおよび第２抑止部１７５ｂはそれぞれ、上下方向に延びる筒状に形成されるとともに、軸線Ｏと同軸に配設されている。第１抑止部１７５ａおよび第２抑止部１７５ｂはそれぞれ、全周にわたって連続して延びている。なお、第１抑止部１７５ａおよび第２抑止部１７５ｂはそれぞれ、周方向に間欠的に延びてもよいし、上下方向から見てＣ字状を呈してもよい。 The first and second inhibiting portions 175a and 175b are each formed in a cylindrical shape extending in the vertical direction and are arranged coaxially with the axis O. The first and second inhibiting portions 175a and 175b each extend continuously around the entire circumference. The first and second inhibiting portions 175a and 175b may each extend intermittently in the circumferential direction or may have a C-shape when viewed from the vertical direction.

第１抑止部１７５ａは、内側が倒立時弁座６４ｅと上下方向で対向し、かつ吐出器１１０の正立時に第２の切替弁６２が内側に進入して収容される位置に設けられている。第１抑止部１７５ａは、有底筒状に形成されている。第１抑止部１７５ａの底壁の上面は、吐出器１１０の正立時に、第１抑止部１７５ａの内側に進入して収容された第２の切替弁６２を支持する。第１抑止部１７５ａの底壁の上面の外周縁部は、径方向の内側に向かうに従い下方に向けて延びている。なお、吐出器１１０の正立時に、第１抑止部１７５ａの周壁の内周面が、第２の切替弁６２を支持してもよい。第１抑止部１７５ａの内側の上下方向の大きさは、第２の切替弁６２の直径と同等になっている。 The first inhibiting portion 175a is provided at a position where the inside faces the inverted valve seat 64e in the vertical direction, and where the second switching valve 62 enters and is accommodated inside when the dispenser 110 is upright. The first inhibiting portion 175a is formed in a bottomed cylindrical shape. The upper surface of the bottom wall of the first inhibiting portion 175a supports the second switching valve 62 that enters and is accommodated inside the first inhibiting portion 175a when the dispenser 110 is upright. The outer peripheral edge of the upper surface of the bottom wall of the first inhibiting portion 175a extends downward as it moves radially inward. Note that the inner peripheral surface of the peripheral wall of the first inhibiting portion 175a may support the second switching valve 62 when the dispenser 110 is upright. The vertical size of the inside of the first inhibiting portion 175a is equal to the diameter of the second switching valve 62.

第２抑止部１７５ｂは、内側が正立時弁座６４ｄと上下方向で対向し、かつ吐出器１１０の倒立時に第１の切替弁６１が内側に進入して収容される位置に設けられている。第２抑止部１７５ｂは、有頂筒状に形成されている。第２抑止部１７５ｂの頂壁の下面は、吐出器１１０の倒立時に、第２抑止部１７５ｂの内側に進入して収容された第１の切替弁６１を支持する。第２抑止部１７５ｂの頂壁の下面の外周縁部は、径方向の内側に向かうに従い上方に向けて延びている。なお、吐出器１１０の倒立時に、第２抑止部１７５ｂの周壁の内周面が、第１の切替弁６１を支持してもよい。第２抑止部１７５ｂの内側の上下方向の大きさは、第１の切替弁６１の直径と同等になっている。 The second inhibiting portion 175b is provided in a position where the inside faces the valve seat 64d in the upright position in the vertical direction, and where the first switching valve 61 enters and is accommodated inside when the dispenser 110 is inverted. The second inhibiting portion 175b is formed in a topped cylindrical shape. The lower surface of the top wall of the second inhibiting portion 175b supports the first switching valve 61 that enters and is accommodated inside the second inhibiting portion 175b when the dispenser 110 is inverted. The outer peripheral edge of the lower surface of the top wall of the second inhibiting portion 175b extends upward as it moves radially inward. Note that the inner peripheral surface of the peripheral wall of the second inhibiting portion 175b may support the first switching valve 61 when the dispenser 110 is inverted. The vertical size of the inside of the second inhibiting portion 175b is equal to the diameter of the first switching valve 61.

第１抑止部１７５ａは、第２連結部材８４の内側に設けられている。第１抑止部１７５ａの外周面と、第２連結部材８４の内周面と、が、周方向に間隔をあけて設けられた第１接続片８４ａを介して連結されている。第１抑止部１７５ａは、第２連結部材８４の上端部より下方に位置している。第１抑止部１７５ａの外周面と、第２連結部材８４の内周面と、の間の径方向の隙間が、第１経路Ｌ１の一部を構成している。 The first restraining portion 175a is provided on the inside of the second connecting member 84. The outer peripheral surface of the first restraining portion 175a and the inner peripheral surface of the second connecting member 84 are connected via a first connecting piece 84a that is provided at intervals in the circumferential direction. The first restraining portion 175a is located below the upper end of the second connecting member 84. The radial gap between the outer peripheral surface of the first restraining portion 175a and the inner peripheral surface of the second connecting member 84 constitutes part of the first path L1.

第２抑止部１７５ｂは、第１連結部材８３の内側に設けられている。第２抑止部１７５ｂの外周面と、第１連結部材８３の内周面と、が、周方向に間隔をあけて設けられた第２接続片８３ａを介して連結されている。第２抑止部１７５ｂは、第１連結部材８３の下端部より上方に位置している。第２抑止部１７５ｂの外周面と、第１連結部材８３の内周面と、の間の径方向の隙間が、第２経路Ｌ２の一部を構成している。 The second restraining portion 175b is provided on the inside of the first connecting member 83. The outer peripheral surface of the second restraining portion 175b and the inner peripheral surface of the first connecting member 83 are connected via second connecting pieces 83a that are provided at intervals in the circumferential direction. The second restraining portion 175b is located above the lower end of the first connecting member 83. The radial gap between the outer peripheral surface of the second restraining portion 175b and the inner peripheral surface of the first connecting member 83 constitutes part of the second path L2.

第１抑止部１７５ａ、第２連結部材８４、および第１接続片８４ａは一体に形成された一つの部品を構成している。第２抑止部１７５ｂ、第１連結部材８３、および第２接続片８３ａも一体に形成された一つの部品を構成している。前者の部品、および後者の部品は、互いに同じ形状で同じ大きさに形成され、かつ上下反転して組み付けられる共通の部品となっている。 The first restraining portion 175a, the second connecting member 84, and the first connecting piece 84a constitute a single, integrally formed part. The second restraining portion 175b, the first connecting member 83, and the second connecting piece 83a also constitute a single, integrally formed part. The former part and the latter part are formed to the same shape and size, and are common parts that are assembled upside down.

以上説明したように、本実施形態による正倒立用ユニット２によれば、第１の切替弁６１および第２の切替弁６２のうちの少なくとも一方の切替弁が、弁座６４ｄ、６４ｅから上下方向に離反したときに抑止部１７５ｂ、１７５ａの内側に進入して収容されるので、容器本体Ｗ内の内容液が、シリンダ部２１の内容液導入口２１ｆに導入される際、吐出器１１０の正立時に、第１経路Ｌ１を流れる内容液が第２の切替弁６２に接触して、第２の切替弁６２が、内容液の液流に乗って倒立時弁座６４ｅに向けて接近すること、および吐出器１１０の倒立時に、第２経路Ｌ２を流れる内容液が第１の切替弁６１に接触して、第１の切替弁６１が、内容液の液流に乗って正立時弁座６４ｄに向けて接近すること、の少なくとも一方を確実に防ぐことができる。 As described above, according to the inverted/normal unit 2 of this embodiment, when at least one of the first and second switching valves 61 and 62 moves away from the valve seats 64d and 64e in the vertical direction, it enters and is accommodated inside the stopper parts 175b and 175a. Therefore, when the liquid contents in the container body W are introduced into the liquid contents inlet 21f of the cylinder part 21, when the dispenser 110 is in the upright position, it is possible to reliably prevent at least one of the following: the liquid contents flowing through the first path L1 contacts the second switching valve 62, and the second switching valve 62 rides on the liquid contents flow and moves toward the inverted valve seat 64e; and when the dispenser 110 is inverted, the liquid contents flowing through the second path L2 contacts the first switching valve 61, and the first switching valve 61 rides on the liquid contents flow and moves toward the upright valve seat 64d.

抑止部１７５ｂ、１７５ａが、正立時弁座６４ｄと上下方向で対向し、かつ吐出器１１０の倒立時に第１の切替弁６１が内側に進入して収容される位置と、倒立時弁座６４ｅと上下方向で対向し、かつ吐出器１１０の正立時に第２の切替弁６２が内側に進入して収容される位置と、に各別に設けられているので、容器本体Ｗ内の内容液が、シリンダ部２１の内容液導入口２１ｆに導入される際、吐出器１１０の正立時に、第１経路Ｌ１を流れる内容液が第２の切替弁６２に接触して、第２の切替弁６２が、内容液の液流に乗って倒立時弁座６４ｅに向けて接近すること、および吐出器１１０の倒立時に、第２経路Ｌ２を流れる内容液が第１の切替弁６１に接触して、第１の切替弁６１が、内容液の液流に乗って正立時弁座６４ｄに向けて接近すること、の双方を確実に防ぐことができる。
抑止部１７５ｂ、１７５ａが、前述の各位置の双方に設けられていることから、前述の各位置に設けられ、かつ抑止部１７５ｂ、１７５ａを備える２部品を容易に同一の形状で同一の大きさとすることができる。 The stopper portions 175b, 175a are provided at a position vertically opposed to the upright valve seat 64d and where the first switching valve 61 advances inward and is accommodated when the dispenser 110 is inverted, and at a position vertically opposed to the inverted valve seat 64e and where the second switching valve 62 advances inward and is accommodated when the dispenser 110 is in the upright position. Therefore, when the content liquid in the container body W is introduced into the content liquid inlet 21f of the cylinder portion 21, When the ejector 110 is in the upright position, it is possible to reliably prevent both of the following from happening: when the content liquid flowing through the first path L1 comes into contact with the second switching valve 62, and the second switching valve 62 moves toward the inverted valve seat 64e along with the flow of the content liquid; and when the ejector 110 is inverted, the content liquid flowing through the second path L2 comes into contact with the first switching valve 61, and the first switching valve 61 moves toward the upright valve seat 64d along with the flow of the content liquid.
Since the restraining portions 175b, 175a are provided at both of the aforementioned positions, the two parts provided at the aforementioned positions and equipped with the restraining portions 175b, 175a can easily be made to be the same shape and size.

なお、本発明の技術範囲は、前述した実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。 The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

外筒部材６３の内側に被覆部５１および案内部５２を設けなくてもよい。
第１の切替弁６１に対する退避凹部６９、および第２の切替弁６２に対する退避凹部は設けなくてもよい。 The covering portion 51 and the guide portion 52 do not need to be provided on the inside of the outer tube member 63 .
The retraction recess 69 for the first switching valve 61 and the retraction recess for the second switching valve 62 do not need to be provided.

被覆部５１として、全周にわたって延びる有頂筒状に形成され、かつ軸線Ｏと同軸に配設された構成を採用し、側方開口５１ａを、被覆部５１の周壁に周方向に間隔をあけて複数形成し、第２の切替弁６２に対する抑止部７５として、全周にわたって連続して延びる筒状に形成され、かつ被覆部５１の頂壁の外周縁部に軸線Ｏと同軸に配設された構成を採用してもよい。この構成において、第２の切替弁６２は、抑止部７５の内側で被覆部５１の頂壁の上面に位置して、軸線Ｏ上に配設される。
この場合、吐出器１０の倒立時に、第２の切替弁６２を倒立時弁座６４ｅに密接させやすくすることができる。 The covering portion 51 may be configured to be formed in a cylindrical shape with a top extending around the entire circumference and arranged coaxially with the axis O, with multiple side openings 51a formed at intervals in the circumferential direction on the peripheral wall of the covering portion 51, and the preventing portion 75 for the second switching valve 62 may be configured to be formed in a cylindrical shape extending continuously around the entire circumference and arranged coaxially with the axis O on the outer circumferential edge portion of the top wall of the covering portion 51. In this configuration, the second switching valve 62 is located on the upper surface of the top wall of the covering portion 51 inside the preventing portion 75 and arranged on the axis O.
In this case, when the dispenser 10 is inverted, it is possible to easily bring the second switching valve 62 into close contact with the inverted valve seat 64e.

その他、本発明の趣旨を逸脱しない範囲で、前記実施形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、上記した実施形態や変形例を適宜組み合わせてもよい。 In addition, the components in the above embodiments may be replaced with known components as appropriate without departing from the spirit of the present invention, and the above embodiments and variations may be combined as appropriate.

１、２正倒立用ユニット
１０、１１０吐出器
１１、１１１ポンプ
１２、１１２吐出ヘッド
１２ｃ吐出孔
２１シリンダ部
２１ｆ内容液導入口
５１被覆部
５１ａ側方開口
５２案内部
６１第１の切替弁
６２第２の切替弁
６３外筒部材
６３ａ正立時導入口
６４ｃ中継口
６４ｄ正立時弁座
６４ｅ倒立時弁座
６５流路形成部材
６５ａ倒立時導入口
６５ｂ栓部（有頂筒状部）
６８共通流路
６９退避凹部
７５抑止部
１７５ａ第１抑止部（抑止部）
１７５ｂ第２抑止部（抑止部）
Ｌ１第１経路
Ｌ２第２経路
Ｗ容器本体
Ｗ１口部 REFERENCE SIGNS LIST 1, 2 Unit for normal/inverted position 10, 110 Discharger 11, 111 Pump 12, 112 Discharge head 12c Discharge hole 21 Cylinder portion 21f Content liquid inlet 51 Covering portion 51a Side opening 52 Guide portion 61 First switching valve 62 Second switching valve 63 External cylinder member 63a Inlet port when in normal position 64c Relay port 64d Valve seat when in normal position 64e Valve seat when inverted position 65 Flow path forming member 65a Inlet port when inverted position 65b Plug portion (topped cylindrical portion)
68 Common flow path 69 Retraction recess 75 Suppression portion 175a First suppression portion (suppression portion)
175b Second suppression part (suppression part)
L1: First path L2: Second path W: Container body W1: Mouth

Claims

吐出器のシリンダ部に取付けられる正倒立用ユニットであって、
前記吐出器の正立時に、容器本体内の内容液を前記シリンダ部の内容液導入口に導入可能な正立時導入口と、
前記吐出器の倒立時に、容器本体内の内容液を前記内容液導入口に導入可能な倒立時導入口と、
前記内容液導入口、前記正立時導入口、および前記倒立時導入口に連通可能な中継口と、
前記吐出器の正立時に、正立時弁座に当接して、前記倒立時導入口と前記中継口との連通を遮断する第１の切替弁と、
前記吐出器の倒立時に、倒立時弁座に当接して、前記正立時導入口と前記中継口との連通を遮断する第２の切替弁と、
前記吐出器の正立時に、内容液が前記正立時導入口から前記中継口に向かう第１経路に対して、前記第２の切替弁が進入するのを抑止する抑止部、および前記吐出器の倒立時に、内容液が前記倒立時導入口から前記中継口に向かう第２経路に対して、前記第１の切替弁が進入するのを抑止する抑止部のうちの少なくとも一方の抑止部と、を備えている、正倒立用ユニット。 A normal/inverted unit that is attached to a cylinder portion of a dispenser,
an upright inlet that can introduce the content liquid in the container body into the content liquid inlet of the cylinder portion when the dispenser is upright;
an inverted inlet that can introduce the content liquid in the container body to the content liquid inlet when the dispenser is inverted;
a relay port that can communicate with the content liquid inlet, the upright inlet, and the inverted inlet;
a first switching valve that contacts an upright valve seat when the discharger is in an upright position to block communication between the inverted position introduction port and the relay port;
a second switching valve that contacts an inverted valve seat when the discharger is inverted to block communication between the upright introduction port and the relay port;
A unit for inverting the discharger, the unit comprising: at least one of a stopper portion that stops the second switching valve from entering a first path along which the liquid contents flow from the inlet when the discharger is in the upright position to the relay port when the discharger is in the upright position; and a stopper portion that stops the first switching valve from entering a second path along which the liquid contents flow from the inlet when the discharger is inverted to the relay port when the discharger is inverted.

前記シリンダ部に外装されるとともに、下端開口が前記正立時導入口とされた外筒部材を備え、
前記外筒部材の内面における前記正立時導入口の開口周縁部に、上方に向けて突出し、前記正立時導入口を上方から覆う有頂筒状の被覆部が形成され、
前記被覆部の周壁には、径方向に開口し、前記正立時導入口と前記外筒部材内とを連通する側方開口が形成され、
前記吐出器の正立時に、前記第１経路に対して前記第２の切替弁が進入するのを抑止する前記抑止部が、前記被覆部の頂壁から上方に向けて突出している、請求項１に記載の正倒立用ユニット。 an outer tube member that is fitted to the cylinder portion and has a lower end opening that serves as the upright position introduction port;
a topped cylindrical covering portion is formed on an inner surface of the outer tube member at a peripheral portion of an opening of the upright state introduction port, the topped cylindrical covering portion protruding upward and covering the upright state introduction port from above,
a side opening is formed in a peripheral wall of the covering portion, the side opening being radially open and communicating between the upright position introduction port and the inside of the outer tube member;
2. The inverted unit according to claim 1, wherein the preventing portion, which prevents the second switching valve from entering the first path when the dispenser is in the upright position, protrudes upward from a top wall of the covering portion.

前記抑止部は、上下方向から見て、表面が、径方向のうち、前記側方開口が開口している側を向く板状に形成され、
前記外筒部材の内周面のうち、前記側方開口および前記抑止部の表面と径方向で対向する部分と、前記側方開口および前記抑止部の表面と、の間が、前記第１経路の入口部分とされ、
前記外筒部材の内側には、前記吐出器の正立時に、前記入口部分に進入しようとした前記第２の切替弁を、前記抑止部の裏面側に導く案内部が設けられている、請求項２に記載の正倒立用ユニット。 When viewed from above and below, the suppression portion is formed in a plate shape with a surface facing the side where the side opening is opened in the radial direction,
a portion of an inner circumferential surface of the outer tubular member that faces the side opening and the surface of the suppressing portion in the radial direction and a portion between the side opening and the surface of the suppressing portion are defined as an inlet portion of the first path,
3. The inverted unit according to claim 2, wherein a guide portion is provided on the inside of the outer tube member for guiding the second switching valve, which is attempting to enter the inlet portion, to the back side of the restraining portion when the dispenser is in the upright position.

前記吐出器の正立時に、前記第２の切替弁を進入させて、前記第１経路に対して、前記倒立時弁座の反対側で、かつ前記正立時導入口の開口方向に交差する方向に、前記第２の切替弁を離す退避凹部、および前記吐出器の倒立時に、前記第１の切替弁を進入させて、前記第２経路に対して、前記正立時弁座の反対側で、かつ前記倒立時導入口の開口方向に交差する方向に、前記第１の切替弁を離す退避凹部のうちの少なくとも一方の退避凹部を備えている、請求項１から３のいずれか１項に記載の正倒立用ユニット。 The unit for inverted and normal position according to any one of claims 1 to 3, further comprising at least one of a retraction recess for inserting the second switching valve when the dispenser is in the normal position and releasing the second switching valve in a direction intersecting the opening direction of the inlet when the dispenser is in the normal position, on the opposite side of the valve seat when the dispenser is in the normal position, with respect to the first path, on the opposite side of the valve seat when the dispenser is in the normal position, and a retraction recess for inserting the first switching valve when the dispenser is in the inverted position, with respect to the second path, on the opposite side of the valve seat when the dispenser is in the normal position, and releasing the first switching valve in a direction intersecting the opening direction of the inlet when the dispenser is inverted.

前記正立時弁座は上方を向き、
前記倒立時弁座は下方を向き、
前記抑止部は、上下方向に延びる筒状に形成されるとともに、前記正立時弁座および前記倒立時弁座のうちの少なくとも一方の弁座と上下方向で対向し、
前記第１の切替弁および前記第２の切替弁のうちの少なくとも一方の切替弁は、前記弁座から上下方向に離反したときに前記抑止部の内側に進入して収容される、請求項１に記載の正倒立用ユニット。 When the valve seat is in the upright position, the valve seat faces upward.
When the valve seat is inverted, the valve seat faces downward.
The suppression portion is formed in a cylindrical shape extending in the vertical direction, and faces at least one of the upright valve seat and the inverted valve seat in the vertical direction,
2. The inverted valve unit according to claim 1, wherein at least one of the first switching valve and the second switching valve enters and is accommodated inside the restraining portion when it moves away from the valve seat in the vertical direction.

前記抑止部は、
前記正立時弁座と上下方向で対向し、かつ前記吐出器の倒立時に前記第１の切替弁が内側に進入して収容される位置と、
前記倒立時弁座と上下方向で対向し、かつ前記吐出器の正立時に前記第２の切替弁が内側に進入して収容される位置と、に各別に設けられている、請求項５に記載の正倒立用ユニット。 The suppression portion is
a position where the first switching valve is vertically opposed to the valve seat when the discharger is in an upright position and where the first switching valve is inserted inward and accommodated when the discharger is in an inverted position;
6. The inverted unit according to claim 5, further comprising a valve seat for inverting the nozzle, the valve seat being vertically opposed to the inverted valve seat and at a position where the second switching valve enters inward and is accommodated when the dispenser is in the upright position.