JP5771496B2

JP5771496B2 - Discharge container

Info

Publication number: JP5771496B2
Application number: JP2011214326A
Authority: JP
Inventors: 宏太郎藤原; 飯塚　茂雄; 茂雄飯塚
Original assignee: Yoshino Kogyosho Co Ltd
Current assignee: Yoshino Kogyosho Co Ltd
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2015-09-02
Anticipated expiration: 2031-09-29
Also published as: JP2013071776A

Description

本発明は、吐出容器に関するものである。 The present invention relates to a discharge container.

目薬容器等の吐出容器として、従来、例えば下記特許文献１に示されているような、内容物が収容される容器本体と、容器本体の口部に装着される吐出キャップと、を備えた構成が知られており、例えば、前記容器本体を内方に押圧（スクイズ）して、該容器本体を弾性変形させることで内容物を吐出させている。 Conventionally, as a discharge container such as an eye drop container, a configuration provided with a container main body that contains contents and a discharge cap that is attached to the mouth of the container main body as shown in Patent Document 1 below, for example For example, the container body is pressed (squeezed) inward, and the container body is elastically deformed to discharge the contents.

特開平１１−１５５９２８号公報Japanese Patent Application Laid-Open No. 11-155828

しかしながら、従来の吐出容器では、前記押圧を解除すると、容器本体の復元変形によって外気が容器本体内に吸入されるため、容器内の内容物が劣化し、保存性が低下するおそれがあった。
また、吐出した内容物等が吐出口に付着している場合に、その付着物が吐出後の前記吸入時において容器内に逆流することがあり、この場合、外気に触れている付着物とともに雑菌が容器内に浸入するおそれがあり、その点で改良の余地があった。 However, in the conventional discharge container, when the pressure is released, the outside air is sucked into the container body due to the restoring deformation of the container body, so that the contents in the container may be deteriorated and the storage stability may be lowered.
In addition, when the discharged contents are attached to the discharge port, the attached matter may flow back into the container at the time of inhalation after discharge. May enter the container, and there is room for improvement in that respect.

本発明は、このような事情に鑑みてなされたものであって、空気の浸入を防止するとともに、吐出口に付着する付着物の逆流を防止することで、内容物の劣化を防ぐことができる吐出容器を提供することを目的とする。 This invention is made in view of such a situation, Comprising: While preventing intrusion of air, the deterioration of the content can be prevented by preventing the backflow of the deposit | attachment adhering to a discharge outlet. An object is to provide a discharge container.

前記課題を解決するために、本発明は以下の手段を提案している。
本発明に係る吐出容器は、内容物が収容されるとともに内容物の減少に伴いしぼみ変形する可撓性に富む内容器、および該内容器が内装される外容器を備える容器本体と、該容器本体の口部に装着され、内容物を吐出する吐出口が形成された吐出体と、を備え、前記外容器には、該外容器と前記内容器との間に外気を吸入する吸気孔が形成されるとともに、前記吐出体には、前記吸気孔と外部とを連通する外気導入孔が形成され、該吐出体は、前記口部に外装されるとともに頂壁部に前記内容器の内部に連通する連通口が形成された有頂筒状の本体筒部、および前記連通口を径方向の外側から囲繞するように前記頂壁部に立設された立ち上がり筒部を有する装着部材と、前記立ち上がり筒部に装着されるとともに天板部に前記吐出口が形成された有頂筒状の吐出筒部材と、前記本体筒部の頂壁部と前記吐出筒部材の天板部との間に配置され、内部が前記連通口と前記吐出口とを連通する弁筒部材と、を備え、該弁筒部材には、当該弁筒部材の内部と前記吐出口との連通およびその遮断を切替える吐出弁と、前記吸気孔と前記外気導入孔との連通およびその遮断を切替える空気弁と、が設けられ、前記吐出弁は、前記吐出口側から前記弁筒部材の内部側への流通を規制し、かつその逆に向けた流通を許容する逆止弁とされ、前記空気弁は、前記吸気孔側から前記外気導入孔側への流通を規制し、かつその逆に向けた流通を許容する逆止弁となっていて、前記弁筒部材には、径方向の外側に向けて環状に突出するとともに前記吐出筒部材内に液密に嵌合し、前記吐出筒部材と前記弁筒部材との間を容器軸方向に区画する区画壁が設けられ、該区画壁は、該区画壁よりも前記吐出筒部材の天板部側に、前記弁筒部材の内部と前記吐出口とを連通する第１連通空間を画成していることを特徴とする。 In order to solve the above problems, the present invention proposes the following means.
A discharge container according to the present invention includes a container main body including a flexible inner container in which contents are accommodated and squeezed and deformed as the contents are reduced, and an outer container in which the inner container is installed, and the container A discharge body that is attached to a mouth portion of the main body and has a discharge port for discharging contents, and the outer container has an intake hole for sucking outside air between the outer container and the inner container. The discharge body is formed with an outside air introduction hole that communicates the intake hole and the outside, and the discharge body is externally mounted on the mouth portion and is formed on the top wall portion inside the inner container. A mounting cylinder having a tubular body with a top formed with a communication port communicating therewith, and a rising cylinder portion erected on the top wall so as to surround the communication port from the outside in the radial direction; The discharge port is formed in the top plate and attached to the rising cylinder. And a valve cylinder that is disposed between the top tubular discharge cylinder member, the top wall portion of the main body cylinder portion, and the top plate portion of the discharge cylinder member, and the inside communicates with the communication port and the discharge port. A discharge valve that switches communication between the inside of the valve tube member and the discharge port and switching between the discharge port, and communication between the intake hole and the outside air introduction hole and blockage thereof. An air valve for switching, wherein the discharge valve is a check valve that regulates the flow from the discharge port side to the inside of the valve cylinder member and allows the flow in the opposite direction, The air valve is a check valve that restricts the flow from the intake hole side to the outside air introduction hole side and allows the flow in the opposite direction. Projecting in an annular shape toward the pipe and being fluid-tightly fitted into the discharge cylinder member, and the discharge cylinder member and the valve cylinder portion A partition wall is provided in the container axis direction, and the partition wall communicates the inside of the valve cylinder member and the discharge port closer to the top plate portion side of the discharge cylinder member than the partition wall. The first communication space is defined .

この発明では、容器本体の内容器に収容された内容物を吐出させる際、例えば、容器本体の外容器をスクイズ変形（弾性変形）させる。これにより、内容器が外容器とともに変形して減容される。そして、この減容変形に伴い内容器の内圧が正圧となり、この正圧によって吐出弁が開けられ、吐出口と内容器の内部とが、装着部材の連通口および弁筒部材の内部を通して連通される。 In this invention, when discharging the contents accommodated in the inner container of the container body, for example, the outer container of the container body is squeezed (elastically deformed). Thereby, the inner container is deformed together with the outer container to reduce the volume. Then, the internal pressure of the inner container becomes positive with this volume reduction deformation, the discharge valve is opened by this positive pressure, and the discharge port communicates with the inside of the inner container through the communication port of the mounting member and the inside of the valve cylinder member. Is done.

その後、内容器の内圧が低下すると、吐出弁が閉じられ、吐出口と内容器の内部とが遮断されて内容器が密封され、さらに前述したスクイズ変形を解除すると、外容器は復元変形しようとする。このとき、外容器と内容器との間に発生した負圧が吸気孔を通して空気弁に作用することにより、この空気弁が作動して、吸気孔と外部とが外気導入孔を通して連通され、外気が外容器と内容器との間に吸入される。 After that, when the internal pressure of the inner container decreases, the discharge valve is closed, the discharge port and the inside of the inner container are shut off, the inner container is sealed, and when the squeeze deformation described above is released, the outer container tries to be restored and deformed. To do. At this time, the negative pressure generated between the outer container and the inner container acts on the air valve through the intake hole, whereby the air valve is activated, and the intake hole and the outside communicate with each other through the external air introduction hole. Is inhaled between the outer container and the inner container.

そして、外気が吸入されることにより、外容器と内容器との間の内圧が大気圧まで上昇すると、空気弁が復元変形して吸気孔と外気導入孔との連通を遮断する。このように、外容器と内容器との間に外気が吸入されることにより、内容器の減容形状が保持される。そのため、吐出後の吐出口から内容器内に外気が流入することがなく、吐出口から吐出された内容物が内容器内に逆流することが防止される。 Then, when the internal pressure between the outer container and the inner container rises to atmospheric pressure due to the intake of the outside air, the air valve is restored and deformed, and the communication between the intake hole and the outside air introduction hole is blocked. Thus, the volume reduction shape of the inner container is maintained by sucking the outside air between the outer container and the inner container. Therefore, the outside air does not flow into the inner container from the discharge outlet after discharge, and the contents discharged from the discharge outlet are prevented from flowing back into the inner container.

この状態から、再び容器本体の外容器をスクイズ変形させると、空気弁は遮断状態とされていることから外容器と内容器との間の内圧が正圧となり、この正圧によって内容器が減容変形される。内容器が減容変形されることにより、前述同様の作用が得られ、内容物が吐出される。 From this state, when the outer container of the container body is squeezed again, the air valve is shut off, so the internal pressure between the outer container and the inner container becomes positive, and this positive pressure reduces the inner container. To be deformed. By reducing the volume of the inner container, the same action as described above is obtained, and the contents are discharged.

なお例えば、容器本体を逆さにすることで内容物の重力により吐出弁を作動させ、吐出口と内容器の内部とを連通させる場合などにおいても、内容器に収容された内容物が吐出口から吐出されるので、容器本体の外容器をスクイズ変形させる場合と同様の作用が得られる。 Note that, for example, when the discharge valve is operated by the gravity of the contents by turning the container body upside down so that the discharge port communicates with the inside of the inner container, the contents stored in the inner container are removed from the discharge port. Since it is discharged, the same action as when the outer container of the container body is squeezed is obtained.

以上より、当該吐出容器によれば、内容物を吐出した後、内容器の減容形状が保持されるので、吐出後の吐出口から内容器内に外気が流入することがなく、内容器の内部への空気の浸入を防止するとともに、吐出口に付着する付着物の逆流を防止することが可能になり、内容物の劣化を防ぐことができる。
また吐出体が、装着部材、吐出筒部材および弁筒部材を備えているので、これらの３つの部材の一部を変更することにより、吐出体の構成を多様に変化させることが可能になり、例えば内容物の粘性やその他の物性などに応じて、吐出体の構成を適宜変更することができる。これにより、内容物の選択の幅を広げ、種々の内容物に対応することができる。 As described above, according to the discharge container, since the volume-reduced shape of the inner container is maintained after the contents are discharged, the outside air does not flow into the inner container from the discharge outlet after the discharge, and the inner container In addition to preventing air from entering the interior, it is possible to prevent the backflow of deposits adhering to the discharge port, and deterioration of the contents can be prevented.
In addition, since the discharge body includes a mounting member, a discharge cylinder member, and a valve cylinder member, it is possible to change the configuration of the discharge body in various ways by changing a part of these three members. For example, the configuration of the ejection body can be changed as appropriate in accordance with the viscosity of the contents and other physical properties. Thereby, the selection range of the contents can be widened, and various contents can be handled.

また、区画壁が、該区画壁よりも吐出筒部材の天板部側に、前記第１連通空間を画成しているので、弁筒部材の内部から前記第１連通空間に流入した内容物が、区画壁から本体筒部の頂壁部側に漏れるのを抑制することが可能になり、内容物を吐出口から確実に吐出することができる。 In addition , since the partition wall defines the first communication space closer to the top plate portion of the discharge cylinder member than the partition wall, the contents flowing into the first communication space from the inside of the valve cylinder member However, it is possible to suppress leakage from the partition wall to the top wall portion side of the main body cylinder portion, and the contents can be reliably discharged from the discharge port.

また、前記外気導入孔は、前記吐出筒部材において前記区画壁よりも前記本体筒部の頂壁部側に位置する部分に形成されるとともに、前記区画壁により、該区画壁よりも前記本体筒部の頂壁部側に画成された第２連通空間を通して前記吸気孔に連通していてもよい。 In addition, the outside air introduction hole is formed in a portion of the discharge cylinder member that is located closer to the top wall portion of the main body cylinder portion than the partition wall, and the main body cylinder rather than the partition wall is formed by the partition wall. It may communicate with the intake hole through a second communication space defined on the top wall portion side of the portion.

この場合、外気導入孔が、前記第２連通空間を通して吸気孔に連通しているので、前述のように、弁筒部材の内部から前記第１連通空間に流入した内容物が、区画壁から本体筒部の頂壁部側に漏れるのが抑制されることにより、第２連通空間を清浄な状態に維持し易く、第２連通空間を通した吸気孔と外気導入孔との連通およびその遮断を、空気弁により確実に切り替えることができる。 In this case, since the outside air introduction hole communicates with the intake hole through the second communication space, the contents flowing into the first communication space from the inside of the valve tube member as described above are transferred from the partition wall to the main body. By suppressing leakage to the top wall portion side of the tube portion, it is easy to maintain the second communication space in a clean state, and communication between the intake hole and the outside air introduction hole through the second communication space is blocked and blocked. The air valve can be switched reliably.

また、前記吐出体には、前記吐出口を覆うオーバーキャップが装着され、該オーバーキャップは、前記外気導入孔と外部との連通を遮断していてもよい。 The discharge body may be provided with an overcap that covers the discharge port, and the overcap may block communication between the outside air introduction hole and the outside.

この場合、オーバーキャップが、外気導入孔と外部との連通を遮断しているので、オーバーキャップが装着された状態で、外気導入孔内に、例えば埃などの異物が入り込むのを抑制することが可能になり、外気導入孔を清浄な状態に維持し、外気導入孔を通した吸気孔と外部との連通を確保し易くすることができる。 In this case, since the overcap blocks communication between the outside air introduction hole and the outside, it is possible to prevent foreign matters such as dust from entering the outside air introduction hole with the overcap attached. Thus, the outside air introduction hole can be maintained in a clean state, and the communication between the intake hole through the outside air introduction hole and the outside can be easily ensured.

本発明に係る吐出容器によれば、空気の浸入を防止するとともに、吐出口に付着する付着物の逆流を防止することで、内容物の劣化を防ぐことができる。 According to the discharge container according to the present invention, it is possible to prevent deterioration of the contents by preventing the intrusion of air and preventing the backflow of deposits adhering to the discharge port.

本発明の一実施形態に係る吐出容器の要部を示す縦断面図である。It is a longitudinal cross-sectional view which shows the principal part of the discharge container which concerns on one Embodiment of this invention. 図１に示す吐出容器の作用を説明する縦断面図である。It is a longitudinal cross-sectional view explaining the effect | action of the discharge container shown in FIG. 図１に示す吐出容器の作用を説明する縦断面図である。It is a longitudinal cross-sectional view explaining the effect | action of the discharge container shown in FIG.

以下、図面を参照し、本発明の一実施形態に係る吐出容器を説明する。当該吐出容器は、例えば目薬など液状の内容物を、微量ずつ吐出する場合に好適に採用される。 Hereinafter, a discharge container according to an embodiment of the present invention will be described with reference to the drawings. The discharge container is preferably employed when, for example, liquid contents such as eye drops are discharged in small amounts.

図１に示すように、吐出容器１０は、内容物が収容されるとともに内容物の減少に伴いしぼみ変形する可撓性に富む内容器（内層）１１、および内容器１１が内装されるとともに弾性変形可能な外容器（外層）１２を備える容器本体１３と、容器本体１３の口部１３ａに装着され、内容物を吐出する吐出口１４が形成された吐出体１５と、吐出体１５に、吐出口１４を覆うように着脱自在に装着されたオーバーキャップ１６と、を備えている。 As shown in FIG. 1, the discharge container 10 is housed with a flexible inner container (inner layer) 11 that accommodates the contents and deforms as the contents decrease, and the inner container 11 is elastic. A container body 13 having a deformable outer container (outer layer) 12, a discharge body 15 that is attached to a mouth portion 13 a of the container body 13 and discharges contents, and a discharge body 15. And an overcap 16 that is detachably mounted so as to cover the outlet 14.

ここで、容器本体１３は有底筒状に形成され、オーバーキャップ１６は有頂筒状に形成され、これらの容器本体１３およびオーバーキャップ１６の各中心軸線は、共通軸上に位置している。以下、この共通軸を容器軸Ｏといい、容器軸Ｏ方向に沿ったオーバーキャップ１６側を上側といい、その反対側を下側といい、容器軸Ｏに直交する方向を径方向といい、容器軸Ｏ回りに周回する方向を周方向という。 Here, the container main body 13 is formed in a bottomed cylindrical shape, the overcap 16 is formed in a topped cylindrical shape, and the central axes of the container main body 13 and the overcap 16 are located on a common axis. . Hereinafter, this common axis is referred to as the container axis O, the overcap 16 side along the container axis O direction is referred to as the upper side, the opposite side is referred to as the lower side, and the direction orthogonal to the container axis O is referred to as the radial direction. A direction that circulates around the container axis O is referred to as a circumferential direction.

容器本体１３は、外容器１２に対して内容器１１が剥離可能に積層されたデラミボトル（積層剥離型容器）とされており、容器本体１３の口部１３ａは、内容器１１の口部１１ａと外容器１２の口部１２ａとが積層された構成とされている。
外容器１２には、該外容器１２と内容器１１との間に外気を吸入する吸気孔１７が形成されており、図示の例では、吸気孔１７は、外容器１２の口部１２ａに形成されている。 The container body 13 is a delamination bottle (laminated peelable container) in which the inner container 11 is detachably laminated with respect to the outer container 12, and the mouth 13 a of the container body 13 is the same as the mouth 11 a of the inner container 11. The mouth 12a of the outer container 12 is laminated.
The outer container 12 is formed with an intake hole 17 for sucking outside air between the outer container 12 and the inner container 11. In the illustrated example, the intake hole 17 is formed in the mouth portion 12 a of the outer container 12. Has been.

また、外容器１２の口部１２ａにおいて吸気孔１７よりも上側に位置する部分の外周面には、雄ねじ部１８が形成されている。該雄ねじ部１８は、前記容器軸Ｏ方向に延在する縦溝１８ａにより、周方向に分断されている。なお、外気が流通可能であれば、前記縦溝１８ａは設けなくともよい。
さらに、外容器１２の口部１２ａにおいて吸気孔１７よりも下側に位置する部分には、径方向の外側に向けて突出するシール突起１９が、全周にわたって延設されている。シール突起１９の外容器１２の径方向に沿った突出量は、前記雄ねじ部１８の径方向に沿った突出量よりも大きくなっている。 Further, a male screw portion 18 is formed on the outer peripheral surface of the portion located above the intake hole 17 in the mouth portion 12 a of the outer container 12. The male screw portion 18 is divided in the circumferential direction by a vertical groove 18a extending in the container axis O direction. If the outside air can be circulated, the longitudinal groove 18a may not be provided.
Further, a seal projection 19 that protrudes outward in the radial direction is extended over the entire circumference at a portion located below the intake hole 17 in the mouth portion 12 a of the outer container 12. The protruding amount of the seal projection 19 along the radial direction of the outer container 12 is larger than the protruding amount along the radial direction of the male screw portion 18.

吐出体１５は、容器本体１３の口部１３ａに外装されるとともに頂壁部２１ａに内容器１１の内部に連通する連通口２０が形成された有頂筒状の本体筒部２１、および連通口２０を径方向の外側から囲繞するように前記頂壁部２１ａに立設された立ち上がり筒部２２を有する装着部材２３と、立ち上がり筒部２２に装着されるとともに天板部２４ａに前記吐出口１４が形成された有頂筒状の吐出筒部材２４と、装着部材２３の本体筒部２１の頂壁部２１ａと吐出筒部材２４の天板部２４ａとの間に配置され、内部が連通口２０と吐出口１４とを連通する弁筒部材２５と、を備えている。これらの連通口２０、本体筒部２１、立ち上がり筒部２２、吐出筒部材２４および弁筒部材２５は、前記容器軸Ｏと同軸に配置されている。また装着部材２３、吐出筒部材２４および弁筒部材２５は、互いに別体に形成されている。 The discharge body 15 is covered with the mouth portion 13a of the container body 13 and has a top cylindrical body cylinder portion 21 in which a communication port 20 communicating with the inside of the inner container 11 is formed in the top wall portion 21a. A mounting member 23 having a rising cylinder portion 22 standing on the top wall portion 21a so as to surround 20 from the outside in the radial direction, and a discharge member 14 mounted on the rising cylinder portion 22 and in the top plate portion 24a. Are disposed between the top cylindrical portion 21a of the main body cylindrical portion 21 of the mounting member 23 and the top plate portion 24a of the discharge cylindrical member 24, and the inside is a communication port 20. And a valve cylinder member 25 that communicates with the discharge port 14. The communication port 20, the main body cylinder part 21, the rising cylinder part 22, the discharge cylinder member 24 and the valve cylinder member 25 are arranged coaxially with the container axis O. The mounting member 23, the discharge cylinder member 24 and the valve cylinder member 25 are formed separately from each other.

本体筒部２１の内周面と容器本体１３の口部１３ａの外周面との間には、吸気孔１７に連通する連通隙間Ｓが、周方向の全周にわたって延設されている。また本体筒部２１の内周面には、前記雄ねじ部１８に螺合される雌ねじ部２６が形成されている。さらに、本体筒部２１において雌ねじ部２６よりも下側に位置する部分には、前記シール突起１９が気密状態で嵌合されている。これにより、吸気孔１７が、連通隙間Ｓを通して本体筒部２１の下側からこの吐出容器１０の外部と連通することが防止されている。 Between the inner peripheral surface of the main body cylinder portion 21 and the outer peripheral surface of the mouth portion 13 a of the container main body 13, a communication gap S that communicates with the suction holes 17 extends over the entire circumference in the circumferential direction. An internal thread portion 26 that is screwed into the external thread portion 18 is formed on the inner peripheral surface of the main body cylinder portion 21. Further, the seal projection 19 is fitted in an airtight state to a portion of the main body cylinder portion 21 located below the female screw portion 26. Thereby, the intake hole 17 is prevented from communicating with the outside of the discharge container 10 from the lower side of the main body cylinder portion 21 through the communication gap S.

また本体筒部２１は、前記立ち上がり筒部２２よりも大径であるとともに、本体筒部２１の頂壁部２１ａは、容器本体１３の口部１３ａの開口端縁上に配置されており、該頂壁部２１ａには、容器本体１３の口部１３ａ内に液密に嵌合されるとともに立ち上がり筒部２２よりも小径なシール筒部２８が、下方に向けて突設されている。さらに、該頂壁部２１ａにおいて立ち上がり筒部２２よりも径方向の内側で、かつシール筒部２８よりも径方向の外側に位置する部分には、前記容器軸Ｏ方向に延在し前記連通隙間Ｓに開口する貫通孔２７が形成されている。 The main body cylinder portion 21 has a larger diameter than the rising cylinder portion 22, and the top wall portion 21 a of the main body cylinder portion 21 is disposed on the opening edge of the mouth portion 13 a of the container main body 13, On the top wall portion 21 a, a seal tube portion 28 that is liquid-tightly fitted into the mouth portion 13 a of the container body 13 and has a smaller diameter than the rising tube portion 22 protrudes downward. Further, a portion of the top wall portion 21a that is located on the radially inner side of the rising cylindrical portion 22 and on the radially outer side of the seal cylindrical portion 28 extends in the container axis O direction and extends in the communication gap. A through-hole 27 that opens to S is formed.

また本体筒部２１の頂壁部２１ａには、内部が連通口２０とされた連通筒部２９が立設されている。連通筒部２９は、前記立ち上がり筒部２２の内部に位置しており、連通筒部２９の上端は、立ち上がり筒部２２の上端よりも下側に位置している。また連通筒部２９は、前記シール筒部２８よりも小径とされ、連通筒部２９の内部は、シール筒部２８の内部を通して容器本体１３の内部に連通している。さらに連通筒部２９には、径方向の外側に向けて突出するシール突部３０が、全周にわたって延設されている。 Further, a communication tube portion 29 whose inside is a communication port 20 is provided upright on the top wall portion 21 a of the main body tube portion 21. The communicating cylinder part 29 is located inside the rising cylinder part 22, and the upper end of the communicating cylinder part 29 is located below the upper end of the rising cylinder part 22. The communication tube portion 29 has a smaller diameter than the seal tube portion 28, and the inside of the communication tube portion 29 communicates with the inside of the container body 13 through the inside of the seal tube portion 28. Furthermore, the communication cylinder part 29 is provided with a seal protrusion 30 that protrudes outward in the radial direction over the entire circumference.

吐出筒部材２４の周壁部２４ｂは、下側に位置する大径部３１と上側に位置する小径部３２とが連結されてなる。大径部３１は、装着部材２３の立ち上がり筒部２２内に嵌合されており、大径部３１の下端は、前記貫通孔２７に前記容器軸Ｏ方向に対向するとともに前記本体筒部２１の頂壁部２１ａの上面との間に隙間をあけて配置されている。また、大径部３１の上端には、径方向の外側に突出し前記立ち上がり筒部２２の開口端縁上に位置する外フランジ部３３が、全周にわたって突設されている。
さらに、大径部３１の内周面と小径部３２の内周面とを連結する第１連結段部３４には、下側および径方向の内側の両方向に向けて開口する連通溝部３５が形成されている。 The peripheral wall portion 24b of the discharge cylinder member 24 is formed by connecting a large diameter portion 31 located on the lower side and a small diameter portion 32 located on the upper side. The large-diameter portion 31 is fitted in the rising cylindrical portion 22 of the mounting member 23, and the lower end of the large-diameter portion 31 faces the through-hole 27 in the container axis O direction and the main cylinder portion 21. It arrange | positions with the clearance gap between the upper surfaces of the top wall part 21a. Further, an outer flange portion 33 protruding outward in the radial direction and positioned on the opening edge of the rising cylindrical portion 22 is provided on the upper end of the large diameter portion 31 so as to protrude over the entire circumference.
Further, the first connecting step 34 that connects the inner peripheral surface of the large-diameter portion 31 and the inner peripheral surface of the small-diameter portion 32 is formed with a communication groove portion 35 that opens in both the lower side and the inner side in the radial direction. Has been.

吐出筒部材２４の天板部２４ａには、上端開口部が前記吐出口１４とされた吐出開口５７が、前記容器軸Ｏ方向に貫設されている。また図示の例では、該吐出開口５７において前記吐出口１４よりも下側に位置する下側部分内には、該下側部分から下方に向けて突出する係止柱３６が配設されている。係止柱３６は、前記下側部分の内周面から径方向の内側に向けて突出するとともに周方向に間隔をあけて複数配置された支持リブ３７に支持されている。 In the top plate portion 24a of the discharge cylinder member 24, a discharge opening 57 whose upper end opening is the discharge port 14 is provided in the container axis O direction. In the illustrated example, a locking column 36 that protrudes downward from the lower portion is disposed in the lower portion of the discharge opening 57 located below the discharge port 14. . The locking columns 36 are supported by support ribs 37 that protrude from the inner peripheral surface of the lower portion toward the inside in the radial direction and that are arranged at a plurality of intervals in the circumferential direction.

弁筒部材２５は、有頂筒状に形成されており、弁筒部材２５の頂壁部２５ａの上面は、前記係止柱３６の下面に当接している。
また、弁筒部材２５の周壁部２５ｂは、吐出筒部材２４における周壁部２４ｂの前記小径部３２内に配置された上筒部３８と、該上筒部３８よりも外径が大きい中筒部３９と、これらの上筒部３８および中筒部３９よりも外径が小さい下筒部４０と、が、上側から下側にこの順に連設されてなる。 The valve cylinder member 25 is formed in a top cylinder shape, and the upper surface of the top wall portion 25 a of the valve cylinder member 25 is in contact with the lower surface of the locking column 36.
The peripheral wall portion 25b of the valve cylinder member 25 includes an upper cylinder portion 38 disposed in the small diameter portion 32 of the peripheral wall portion 24b of the discharge cylinder member 24, and a middle cylinder portion having an outer diameter larger than that of the upper cylinder portion 38. 39 and the lower cylinder part 40 having an outer diameter smaller than those of the upper cylinder part 38 and the middle cylinder part 39 are connected in this order from the upper side to the lower side.

下筒部４０の下端は、吐出筒部材２４における周壁部２４ｂの大径部３１の下端と前記容器軸Ｏ方向の位置が同等となっている。
下筒部４０の内径と、中筒部３９の下端部の内径と、は同等であるとともに、当該弁筒部材２５の周壁部２５ｂのうち、中筒部３９の下端部よりも上側に位置する部分の内径よりも大きくなっており、これらの下筒部４０の内部と中筒部３９の下端部の内部とには、装着部材２３の連通筒部２９が液密に嵌合されている。なお図示の例では、中筒部３９の下端部の内周面には、連通筒部２９の前記シール突部３０が液密に当接している。 The lower end of the lower cylinder part 40 has the same position in the container axis O direction as the lower end of the large diameter part 31 of the peripheral wall part 24b of the discharge cylinder member 24.
The inner diameter of the lower cylinder part 40 is equal to the inner diameter of the lower end part of the middle cylinder part 39 and is positioned above the lower end part of the middle cylinder part 39 in the peripheral wall part 25 b of the valve cylinder member 25. The connecting cylinder portion 29 of the mounting member 23 is liquid-tightly fitted inside the lower cylinder portion 40 and the lower end portion of the middle cylinder portion 39. In the illustrated example, the seal protrusion 30 of the communication tube portion 29 is in liquid-tight contact with the inner peripheral surface of the lower end portion of the middle tube portion 39.

また、中筒部３９の外周面と上筒部３８の外周面とを連結する第２連結段部４１は、吐出筒部材２４における周壁部２４ｂの前記第１連結段部３４に当接している。そして、第１連結段部３４の前記連通溝部３５は、弁筒部材２５における中筒部３９と吐出筒部材２４における大径部３１との間に向けて開口している。
さらに、中筒部３９の外周面には、径方向の外側に向けて突出し、吐出筒部材２４における周壁部２４ｂの大径部３１の内周面に当接する環状突起部４２が、前記容器軸Ｏ方向に間隔を空けて複数配設されている。該環状突起部４２には、前記容器軸Ｏ方向に延在する縦溝４２ａが形成されている。 Further, the second connection step 41 that connects the outer peripheral surface of the middle tube portion 39 and the outer peripheral surface of the upper tube portion 38 is in contact with the first connection step portion 34 of the peripheral wall portion 24 b of the discharge tube member 24. . The communication groove portion 35 of the first connection step portion 34 opens between the middle tube portion 39 of the valve tube member 25 and the large diameter portion 31 of the discharge tube member 24.
Furthermore, an annular protrusion 42 that protrudes outward in the radial direction on the outer peripheral surface of the middle tube portion 39 and contacts the inner peripheral surface of the large-diameter portion 31 of the peripheral wall portion 24b of the discharge tube member 24 is provided on the container shaft. A plurality are arranged at intervals in the O direction. The annular protrusion 42 is formed with a longitudinal groove 42a extending in the container axis O direction.

また、弁筒部材２５には、径方向の外側に向けて環状に突出するとともに吐出筒部材２４内に液密、気密に嵌合し、吐出筒部材２４と弁筒部材２５との間を前記容器軸Ｏ方向に区画する区画壁４３が設けられている。区画壁４３は、弁筒部材２５における周壁部２５ｂの上筒部３８に配設されるとともに、区画壁４３の外周縁は、吐出筒部材２４における周壁部２４ｂの小径部３２の内周面に液密に当接している。そして該区画壁４３は、前記小径部３２から径方向の内側に向けて突設された係止突起４４により、下方から係止されている。 The valve cylinder member 25 protrudes in an annular shape toward the outer side in the radial direction and is fitted in the discharge cylinder member 24 in a liquid-tight and air-tight manner, so that the gap between the discharge cylinder member 24 and the valve cylinder member 25 is A partition wall 43 that partitions in the container axis O direction is provided. The partition wall 43 is disposed on the upper cylinder portion 38 of the peripheral wall portion 25b of the valve cylinder member 25, and the outer peripheral edge of the partition wall 43 is on the inner peripheral surface of the small diameter portion 32 of the peripheral wall portion 24b of the discharge cylinder member 24. It is in liquid-tight contact. The partition wall 43 is locked from below by a locking projection 44 protruding from the small diameter portion 32 toward the inside in the radial direction.

また区画壁４３は、該区画壁４３よりも上側（吐出筒部材の天板部側）に、弁筒部材２５の内部と吐出口１４とを連通する第１連通空間４５を画成している。第１連通空間４５は、吐出筒部材２４の内部のうち、区画壁４３と当該吐出筒部材２４の天板部２４ａとの間に位置する部分とされ、弁筒部材２５の周壁部２５ｂにおいて区画壁４３よりも上側に位置する部分に、径方向に貫設された連通孔４６を通して弁筒部材２５の内部と吐出口１４とを連通する。なお連通孔４６は、径方向の内側から外側に向かうに従い漸次、拡径している。 The partition wall 43 defines a first communication space 45 that communicates the inside of the valve tube member 25 and the discharge port 14 above the partition wall 43 (on the top plate portion side of the discharge tube member). . The first communication space 45 is a portion located between the partition wall 43 and the top plate portion 24 a of the discharge cylinder member 24 in the inside of the discharge cylinder member 24, and is partitioned at the peripheral wall portion 25 b of the valve cylinder member 25. The inside of the valve cylinder member 25 and the discharge port 14 are communicated with each other through a communicating hole 46 provided in a radial direction in a portion located above the wall 43. The communication hole 46 gradually increases in diameter from the inner side to the outer side in the radial direction.

さらに区画壁４３は、該区画壁４３よりも下側（本体筒部の頂壁部側）に、吸気孔１７に連通する第２連通空間４７を画成している。第２連通空間４７は、吐出筒部材２４の内部のうち、区画壁４３と弁筒部材２５の前記第２連結段部４１との間に位置する部分とされ、連通溝部３５、前記弁筒部材２５における中筒部３９および下筒部４０と吐出筒部材２４における大径部３１との間、前記貫通孔２７および前記連通隙間Ｓを通して吸気孔１７に連通している。 Furthermore, the partition wall 43 defines a second communication space 47 that communicates with the intake hole 17 below the partition wall 43 (on the top wall portion side of the main body cylinder portion). The second communication space 47 is a portion located between the partition wall 43 and the second connection step portion 41 of the valve cylinder member 25 in the discharge cylinder member 24, and includes the communication groove 35 and the valve cylinder member. 25, the middle cylinder part 39 and the lower cylinder part 40 and the large diameter part 31 of the discharge cylinder member 24 communicate with the intake hole 17 through the through hole 27 and the communication gap S.

ここで前記吐出体１５には、吸気孔１７と外部とを連通する外気導入孔４８が形成されており、本実施形態では、該外気導入孔４８は、吐出筒部材２４において区画壁４３よりも下側（本体筒部の頂壁部側）に位置する部分に形成されるとともに、前記第２連通空間４７を通して吸気孔１７に連通している。なお図示の例では、外気導入孔４８は、吐出筒部材２４における周壁部２４ｂの小径部３２に形成されている。 Here, the discharge body 15 is formed with an outside air introduction hole 48 that allows the intake hole 17 to communicate with the outside. In this embodiment, the outside air introduction hole 48 is located more than the partition wall 43 in the discharge cylinder member 24. It is formed in a portion located on the lower side (the top wall portion side of the main body cylinder portion) and communicates with the intake hole 17 through the second communication space 47. In the illustrated example, the outside air introduction hole 48 is formed in the small diameter portion 32 of the peripheral wall portion 24 b of the discharge cylinder member 24.

そして本実施形態では、弁筒部材２５には、当該弁筒部材２５の内部と吐出口１４との連通およびその遮断を切替える吐出弁４９と、吸気孔１７と外気導入孔４８との連通およびその遮断を切替える空気弁５０と、が設けられている。これらの弁筒部材２５、吐出弁４９および空気弁５０は一体に成形されている。 In the present embodiment, the valve cylinder member 25 is connected to the discharge valve 49 that switches between communication between the inside of the valve cylinder member 25 and the discharge port 14 and switching between the discharge port 14, communication between the intake hole 17 and the outside air introduction hole 48, and And an air valve 50 for switching the shut-off. The valve cylinder member 25, the discharge valve 49, and the air valve 50 are integrally formed.

吐出弁４９は、吐出口１４側から弁筒部材２５の内部側への流通を規制し、かつその逆に向けた流通を許容する逆止弁とされている。
吐出弁４９は、弁筒部材２５の頂壁部２５ａから径方向の外側に向けて環状に突設されており、吐出弁４９の外周縁は、吐出筒部材２４の周壁部２４ｂに設けられた吐出弁座５１に、該吐出弁座５１の上方から離間可能に着座するとともに、吐出弁４９は、上方に向けて弾性変形可能となっている。また図示の例では、吐出弁座５１は、吐出筒部材２４における周壁部２４ｂの小径部３２から径方向の内側に向けて環状に突設されている。
なお例えば、吐出弁４９を予め上方に向けて弾性変形させながら、吐出弁４９の外周縁を吐出弁座５１に着座させ、吐出弁４９の弾性復元力により、吐出弁４９の外周縁が吐出弁座５１に押し付けられるように構成する等してもよい。 The discharge valve 49 is a check valve that restricts the flow from the discharge port 14 side to the inner side of the valve cylinder member 25 and permits the flow in the opposite direction.
The discharge valve 49 is annularly projected from the top wall portion 25 a of the valve cylinder member 25 toward the outer side in the radial direction, and the outer peripheral edge of the discharge valve 49 is provided on the peripheral wall portion 24 b of the discharge cylinder member 24. The discharge valve seat 51 is detachably seated from above the discharge valve seat 51, and the discharge valve 49 is elastically deformable upward. In the illustrated example, the discharge valve seat 51 protrudes in an annular shape from the small diameter portion 32 of the peripheral wall portion 24 b of the discharge cylinder member 24 toward the inside in the radial direction.
For example, while the discharge valve 49 is elastically deformed upward in advance, the outer peripheral edge of the discharge valve 49 is seated on the discharge valve seat 51, and the outer peripheral edge of the discharge valve 49 is caused by the elastic restoring force of the discharge valve 49. It may be configured to be pressed against the seat 51.

空気弁５０は、吸気孔１７側から外気導入孔４８側への流通を規制し、かつその逆に向けた流通を許容する逆止弁となっている。
空気弁５０は、弁筒部材２５における周壁部２５ｂの下筒部４０の下端から径方向の外側に向けて環状に突設されており、空気弁５０の外周縁は、吐出筒部材２４の周壁部２４ｂに設けられた空気弁座５２に、該空気弁座５２の下方から離間可能に着座している。また空気弁５０は、下方に向けて弾性変形可能となっており、空気弁５０の外周縁は、当該空気弁５０が下方に向けて弾性変形したときに、本体筒部２１の上面に当接するように構成されている。また図示の例では、空気弁座５２は、吐出筒部材２４における周壁部２４ｂの大径部３１の下端縁とされている。 The air valve 50 is a check valve that restricts the flow from the intake hole 17 side to the outside air introduction hole 48 side and allows the flow in the opposite direction.
The air valve 50 protrudes in an annular shape from the lower end of the lower cylinder portion 40 of the peripheral wall portion 25 b of the valve cylinder member 25 toward the radially outer side, and the outer peripheral edge of the air valve 50 is the peripheral wall of the discharge cylinder member 24. The air valve seat 52 provided in the portion 24b is seated so as to be separable from below the air valve seat 52. The air valve 50 is elastically deformable downward, and the outer peripheral edge of the air valve 50 abuts on the upper surface of the main body cylinder portion 21 when the air valve 50 is elastically deformed downward. It is configured as follows. In the illustrated example, the air valve seat 52 is the lower end edge of the large-diameter portion 31 of the peripheral wall portion 24 b of the discharge cylinder member 24.

なお例えば、空気弁５０を予め下方に向けて弾性変形させながら、空気弁５０の外周縁を空気弁座５２に着座させ、空気弁５０の弾性復元力により、空気弁５０の外周縁が空気弁座５２に押し付けられるように構成する等してもよい。本実施形態に係る吐出容器１０では、前述のような構成を、例えば、弁筒部材２５の前記下筒部４０の下端を、吐出筒部材２４の前記大径部３１の下端よりも上方に配置すること等で具備させることができる。 For example, while the air valve 50 is elastically deformed downward in advance, the outer peripheral edge of the air valve 50 is seated on the air valve seat 52, and the outer peripheral edge of the air valve 50 is It may be configured to be pressed against the seat 52. In the discharge container 10 according to the present embodiment, for example, the lower end of the lower cylinder portion 40 of the valve cylinder member 25 is disposed above the lower end of the large diameter portion 31 of the discharge cylinder member 24 in the configuration as described above. And so on.

オーバーキャップ１６は有頂筒状に形成され、オーバーキャップ１６の周壁部は、下側に位置する大径部５３ａと上側に位置する小径部５３ｂとが、径方向に延在する連結環部５４を介して連結されてなる。大径部５３ａは、装着部材２３の立ち上がり筒部２２に、例えば螺着などにより外装されるとともに、連結環部５４は、吐出筒部材２４の前記外フランジ部３３に前記容器軸Ｏ方向に対向している。 The overcap 16 is formed in a cylindrical shape, and the peripheral wall portion of the overcap 16 has a connecting ring portion 54 in which a large-diameter portion 53a positioned on the lower side and a small-diameter portion 53b positioned on the upper side extend in the radial direction. It is connected via. The large-diameter portion 53a is externally attached to the rising cylindrical portion 22 of the mounting member 23 by, for example, screwing, and the connecting ring portion 54 is opposed to the outer flange portion 33 of the discharge cylindrical member 24 in the container axis O direction. doing.

ここでオーバーキャップ１６は、外気導入孔４８と外部との連通を遮断している。本実施形態では、連結環部５４には、下方に向けて突出し下端が外フランジ部３３に当接するシール環部５５が突設されており、該シール環部５５により、オーバーキャップ１６と吐出筒部材２４との間を通した外気導入孔４８と外部との連通が遮断されている。
なお図示の例では、オーバーキャップ１６の頂壁部には、吐出口１４を閉塞するシール部５６が下方に向けて突設されており、オーバーキャップ１６は、吐出口１４と外部との連通も遮断している。 Here, the overcap 16 blocks communication between the outside air introduction hole 48 and the outside. In the present embodiment, the connection ring portion 54 is provided with a seal ring portion 55 protruding downward and having a lower end abutting against the outer flange portion 33, and the seal ring portion 55 allows the overcap 16 and the discharge cylinder to protrude. Communication between the outside air introduction hole 48 passing through the member 24 and the outside is blocked.
In the illustrated example, a seal portion 56 that closes the discharge port 14 protrudes downward from the top wall portion of the overcap 16, and the overcap 16 also communicates with the discharge port 14 and the outside. It is shut off.

以上のように構成された吐出容器１０において、容器本体１３の内容器１１に収容された内容物を吐出させる際には、まずオーバーキャップ１６を離脱させた後、例えば、容器本体１３の外容器１２をスクイズ変形（弾性変形）させる。これにより、内容器１１が外容器１２とともに変形して減容される。そして図２に示すように、この減容変形に伴い内容器１１の内圧が正圧となり、この正圧によって、吐出弁４９が弾性変形して吐出弁座５１から離間して吐出弁４９が開けられ、吐出口１４と内容器１１の内部とが、装着部材２３のシール筒部２８および連通口２０、弁筒部材２５の内部、連通孔４６、並びに第１連通空間４５を通して連通される。 In the discharge container 10 configured as described above, when discharging the contents stored in the inner container 11 of the container main body 13, the overcap 16 is first removed, and then the outer container of the container main body 13, for example. 12 is squeezed (elastically deformed). Thereby, the inner container 11 is deformed together with the outer container 12 to reduce the volume. Then, as shown in FIG. 2, the internal pressure of the inner container 11 becomes a positive pressure along with the volume reduction deformation, and the positive pressure causes the discharge valve 49 to be elastically deformed and separated from the discharge valve seat 51 to open the discharge valve 49. The discharge port 14 and the inside of the inner container 11 are communicated with each other through the seal cylinder portion 28 and the communication port 20 of the mounting member 23, the inside of the valve cylinder member 25, the communication hole 46, and the first communication space 45.

その後、例えば容器本体１３のスクイズ変形を停止する等して内容器１１の内圧を低下させると、吐出弁４９が復元変形することで閉じられ、吐出口１４と内容器１１の内部とが遮断されて内容器１１が密封され、さらに前述したスクイズ変形を解除すると、外容器１２は復元変形しようとする。このとき図３に示すように、外容器１２と内容器１１との間に発生した負圧が吸気孔１７を通して空気弁５０に作用して、空気弁５０が弾性変形して空気弁座５２から離間することで、吸気孔１７と外部とが連通隙間Ｓ、貫通孔２７、弁筒部材２５における下筒部４０および中筒部３９と吐出筒部材２４における大径部３１との間、連通溝部３５、第２連通空間４７並びに外気導入孔４８を通して連通され、外気が外容器１２と内容器１１との間に吸入される。 Thereafter, for example, when the internal pressure of the inner container 11 is lowered by stopping the squeeze deformation of the container body 13, the discharge valve 49 is closed by restoring deformation, and the discharge port 14 and the inside of the inner container 11 are shut off. Then, when the inner container 11 is sealed and the squeeze deformation described above is released, the outer container 12 tends to be restored and deformed. At this time, as shown in FIG. 3, the negative pressure generated between the outer container 12 and the inner container 11 acts on the air valve 50 through the intake hole 17, so that the air valve 50 is elastically deformed and is released from the air valve seat 52. By separating the intake hole 17 and the outside, the communication gap S, the through hole 27, the lower cylinder part 40 in the valve cylinder member 25 and the middle cylinder part 39 and the large diameter part 31 in the discharge cylinder member 24, the communication groove part. 35, the second communication space 47 and the outside air introduction hole 48 communicate with each other, and outside air is sucked between the outer container 12 and the inner container 11.

そして、外気が吸入されることにより、外容器１２と内容器１１との間の内圧が大気圧まで上昇すると、空気弁５０が復元変形して吸気孔１７と外気導入孔４８との連通を遮断する。このように、外容器１２と内容器１１との間に外気が吸入されることにより、内容器１１の減容形状が保持される。そのため、吐出後の吐出口１４から内容器１１内に外気が流入することがなく、吐出口１４から吐出された内容物が内容器１１内に逆流することが防止される。 Then, when the internal pressure between the outer container 12 and the inner container 11 rises to atmospheric pressure due to the intake of the outside air, the air valve 50 is restored and deformed, and the communication between the intake hole 17 and the outside air introduction hole 48 is blocked. To do. As described above, when the outside air is sucked between the outer container 12 and the inner container 11, the volume reduction shape of the inner container 11 is maintained. Therefore, outside air does not flow into the inner container 11 from the discharge outlet 14 after discharge, and the contents discharged from the discharge outlet 14 are prevented from flowing back into the inner container 11.

この状態から、再び容器本体１３の外容器１２をスクイズ変形させると、空気弁５０は遮断状態とされていることから外容器１２と内容器１１との間の内圧が正圧となり、この正圧によって内容器１１が減容変形される。内容器１１が減容変形されることにより、前述同様の作用が得られ、内容物が吐出される。 From this state, when the outer container 12 of the container body 13 is squeezed again, the air valve 50 is shut off, so that the internal pressure between the outer container 12 and the inner container 11 becomes a positive pressure. As a result, the volume of the inner container 11 is reduced. By reducing the volume of the inner container 11, the same action as described above is obtained, and the contents are discharged.

なお例えば、容器本体１３を逆さにすることで内容物の重力により吐出弁４９を作動させ、吐出口１４と内容器１１の内部とを連通させる場合などにおいても、内容器１１に収容された内容物が吐出口１４から吐出されるので、容器本体１３の外容器１２をスクイズ変形させる場合と同様の作用が得られる。 In addition, for example, even when the discharge valve 49 is operated by the gravity of the contents by turning the container body 13 upside down so that the discharge port 14 communicates with the inside of the inner container 11, the contents stored in the inner container 11. Since an object is discharged from the discharge port 14, the same action as that when the outer container 12 of the container body 13 is squeezed is obtained.

以上説明したように、本実施形態に係る吐出容器１０によれば、内容物を吐出した後、内容器１１の減容形状が保持されるので、吐出後の吐出口１４から内容器１１内に外気が流入することがなく、内容器１１の内部への空気の浸入を防止するとともに、吐出口１４に付着する付着物の逆流を防止することが可能になり、内容物の劣化を防ぐことができる。
また吐出体１５が、装着部材２３、吐出筒部材２４および弁筒部材２５を備えているので、これらの３つの部材の一部を変更することにより、吐出体１５の構成を多様に変化させることが可能になり、例えば内容物の粘性やその他の物性などに応じて、吐出体１５の構成を適宜変更することができる。これにより、内容物の選択の幅を広げ、種々の内容物に対応することができる。 As described above, according to the discharge container 10 according to the present embodiment, the volume-reduced shape of the inner container 11 is maintained after the contents are discharged, so the discharge port 14 after discharge enters the inner container 11. Outside air does not flow in, it is possible to prevent air from entering the inside of the inner container 11, and to prevent backflow of deposits adhering to the discharge port 14, thereby preventing deterioration of the contents. it can.
Moreover, since the discharge body 15 is equipped with the mounting member 23, the discharge cylinder member 24, and the valve cylinder member 25, the structure of the discharge body 15 can be variously changed by changing a part of these three members. For example, the configuration of the discharge body 15 can be appropriately changed according to the viscosity of the contents, other physical properties, and the like. Thereby, the selection range of the contents can be widened, and various contents can be handled.

また、区画壁４３が、該区画壁４３よりも上側に、前記第１連通空間４５を画成しているので、弁筒部材２５の内部から前記第１連通空間４５に流入した内容物が、区画壁４３から下側に漏れるのを抑制することが可能になり、内容物を吐出口１４から確実に吐出することができる。 In addition, since the partition wall 43 defines the first communication space 45 above the partition wall 43, the contents flowing into the first communication space 45 from the inside of the valve tube member 25 are It is possible to suppress leakage from the partition wall 43 to the lower side, and the contents can be reliably discharged from the discharge port 14.

さらに、外気導入孔４８が、前記第２連通空間４７を通して吸気孔１７に連通しているので、前述のように、弁筒部材２５の内部から前記第１連通空間４５に流入した内容物が、区画壁４３から下側に漏れるのが抑制されることにより、第２連通空間４７を清浄な状態に維持し易く、第２連通空間４７を通した吸気孔１７と外気導入孔４８との連通およびその遮断を、空気弁５０により確実に切り替えることができる。 Further, since the outside air introduction hole 48 communicates with the intake hole 17 through the second communication space 47, as described above, the contents flowing into the first communication space 45 from the inside of the valve member 25 are By suppressing leakage from the partition wall 43 to the lower side, the second communication space 47 can be easily maintained in a clean state, and the communication between the intake hole 17 and the outside air introduction hole 48 through the second communication space 47 and The shutoff can be reliably switched by the air valve 50.

また、オーバーキャップ１６が、外気導入孔４８と外部との連通を遮断しているので、オーバーキャップ１６が装着された状態で、外気導入孔４８内に、例えば埃などの異物が入り込むのを抑制することが可能になり、外気導入孔４８を清浄な状態に維持し、外気導入孔４８を通した吸気孔１７と外部との連通を確保し易くすることができる。 Further, since the overcap 16 blocks communication between the outside air introduction hole 48 and the outside, it is possible to prevent foreign matters such as dust from entering the outside air introduction hole 48 in a state where the overcap 16 is attached. Thus, the outside air introduction hole 48 can be maintained in a clean state, and the communication between the intake hole 17 through the outside air introduction hole 48 and the outside can be easily ensured.

なお、本発明の技術的範囲は前記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。
例えば、前記実施形態では、オーバーキャップ１６が、外気導入孔４８と外部との連通を遮断しているものとしたが、これに限られない。さらに、オーバーキャップ１６はなくてもよい。 The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above embodiment, the overcap 16 blocks the communication between the outside air introduction hole 48 and the outside. However, the present invention is not limited to this. Further, the overcap 16 may be omitted.

また吐出弁４９は、前記実施形態に示したものに限られず、吐出口１４側から弁筒部材２５の内部側への流通を規制し、かつその逆に向けた流通を許容する逆止弁とされた他の構成を、適宜採用することが可能である。例えば、吐出弁を、弁筒部材２５の頂壁部２５ａから上方に向けて筒状に突設し、吐出弁座を、吐出開口５７の前記下側部分の内周面に、吐出弁４９の上端縁が径方向の内側から当接するように形成し、吐出弁が、内容器１１の内圧変動により径方向の内側に向けて弾性変形して吐出弁座から離間するように構成しても良い。
また空気弁５０も、前記実施形態に示したものに限られず、吸気孔１７側から外気導入孔４８側への流通を規制し、かつその逆に向けた流通を許容する逆止弁とされた他の構成を、適宜採用することが可能である。 Further, the discharge valve 49 is not limited to the one shown in the embodiment, and a check valve that restricts the flow from the discharge port 14 side to the inner side of the valve cylinder member 25 and allows the flow in the opposite direction. It is possible to adopt other configurations as appropriate. For example, the discharge valve protrudes in a cylindrical shape upward from the top wall portion 25 a of the valve cylinder member 25, and the discharge valve seat is disposed on the inner peripheral surface of the lower portion of the discharge opening 57. The upper edge may be formed so as to abut on the inner side in the radial direction, and the discharge valve may be configured to be elastically deformed toward the inner side in the radial direction due to the internal pressure variation of the inner container 11 and separated from the discharge valve seat. .
The air valve 50 is not limited to the one shown in the above embodiment, but is a check valve that restricts the flow from the intake hole 17 side to the outside air introduction hole 48 side and allows the flow in the opposite direction. Other configurations can be employed as appropriate.

また前記実施形態では、前記第１連結段部３４と前記第２連結段部４１とが当接しているものとしたが、当接していなくてもよい。この場合、連通溝部３５はなくてもよい。
さらに、これらの両段部３４、４１はなくてもよく、例えば弁筒部材２５は、前記容器軸Ｏ方向の全長にわたって同径であってもよい。
また、係止柱３６はなくてもよい。 Moreover, in the said embodiment, although the said 1st connection step part 34 and the said 2nd connection step part 41 contact | abutted, it does not need to contact | abut. In this case, the communication groove 35 may not be provided.
Further, these stepped portions 34 and 41 may not be provided. For example, the valve cylinder member 25 may have the same diameter over the entire length in the container axis O direction.
Further, the locking column 36 may not be provided.

また前記実施形態では、弁筒部材２５内には、装着部材２３の連通筒部２９が液密に嵌合されているものとしたが、これに限られない。例えば、弁筒部材２５が、装着部材２３の連通筒部２９内、つまり連通口２０内に液密に嵌合されていてもよい。
また前記実施形態では、連通筒部２９の内部が連通口２０であるものとしたが、これに限られず、連通口２０は、本体筒部２１の頂壁部２１ａを前記容器軸Ｏ方向に貫通する開口であってもよい。 Moreover, in the said embodiment, although the communicating cylinder part 29 of the mounting member 23 shall be liquid-tightly fitted in the valve cylinder member 25, it is not restricted to this. For example, the valve cylinder member 25 may be liquid-tightly fitted in the communication cylinder portion 29 of the mounting member 23, that is, in the communication port 20.
In the above embodiment, the inside of the communication tube portion 29 is the communication port 20, but this is not a limitation, and the communication port 20 penetrates the top wall portion 21 a of the main body tube portion 21 in the container axis O direction. It may be an opening.

また前記実施形態では、吐出筒部材２４における周壁部２４ｂは、装着部材２３の立ち上がり筒部２２内に嵌合されているものとしたが、これに限られるものではなく、例えば、吐出筒部材２４における周壁部２４ｂが、装着部材２３の立ち上がり筒部２２に外嵌されていてもよい。
さらに前記実施形態では、外気導入孔４８が、吐出筒部材２４に形成されているものとしたが、これに限られるものではない。さらにまた、吸気孔１７および外気導入孔４８の数は、特に限定されない。 In the above-described embodiment, the peripheral wall portion 24b of the discharge cylinder member 24 is fitted into the rising cylinder portion 22 of the mounting member 23. However, the present invention is not limited to this. The peripheral wall portion 24 b may be fitted on the rising cylinder portion 22 of the mounting member 23.
Furthermore, in the above-described embodiment, the outside air introduction hole 48 is formed in the discharge cylinder member 24. However, the present invention is not limited to this. Furthermore, the numbers of the intake holes 17 and the outside air introduction holes 48 are not particularly limited.

また前記実施形態では、容器本体１３は、内容器１１が外容器１２の内面に剥離可能に積層されたいわゆるデラミボトルであるとしたが、これに限定されるものではなく、例えば、内容器１１と外容器１２とが別体に形成された後に組合わされた二重容器であってもよい。
さらに当該吐出容器１０は、目薬を吐出する目薬容器に限定されるものではない。 In the above embodiment, the container body 13 is a so-called Delami bottle in which the inner container 11 is detachably laminated on the inner surface of the outer container 12, but is not limited thereto. It may be a double container combined with the outer container 12 after being formed separately.
Further, the discharge container 10 is not limited to an eye drop container that discharges eye drops.

その他、本発明の趣旨に逸脱しない範囲で、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、前記した変形例を適宜組み合わせてもよい。 In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

Ｏ容器軸
１０吐出容器
１１内容器
１２外容器
１３容器本体
１３ａ口部
１４吐出口
１５吐出体
１６オーバーキャップ
１７吸気孔
２０連通口
２１本体筒部
２１ａ頂壁部
２２立ち上がり筒部
２３装着部材
２４吐出筒部材
２４ａ天板部
２５弁筒部材
４３区画壁
４５第１連通空間
４７第２連通空間
４８外気導入孔
４９吐出弁
５０空気弁 O Container shaft 10 Discharge container 11 Inner container 12 Outer container 13 Container main body 13a Mouth part 14 Ejection port 15 Ejector 16 Overcap 17 Intake hole 20 Communication port 21 Main body cylinder part 21a Top wall part 22 Standing cylinder part 23 Mounting member 24 Ejection Tube member 24a Top plate portion 25 Valve tube member 43 Partition wall 45 First communication space 47 Second communication space 48 Outside air introduction hole 49 Discharge valve 50 Air valve

Claims

A container main body including a flexible inner container that accommodates contents and squeezes and deforms as the contents decrease, and an outer container in which the inner container is installed;
A discharge body mounted on the mouth of the container body and having a discharge port for discharging the contents;
The outer container is formed with an intake hole for sucking outside air between the outer container and the inner container, and the discharge body is formed with an outside air introduction hole for communicating the intake hole with the outside. ,
The discharge body is
The top tube-shaped main body cylinder part which is externally connected to the inside of the inner container on the top wall part and is formed on the top part, and the communication port is surrounded from the outside in the radial direction. A mounting member having a rising cylinder portion erected on the top wall portion;
A topped cylindrical discharge cylinder member that is attached to the rising cylinder part and has the discharge port formed in the top plate part;
A valve cylinder member disposed between the top wall portion of the main body cylinder portion and the top plate portion of the discharge cylinder member, and the inside communicates the communication port and the discharge port;
In the valve member,
A discharge valve for switching communication between the inside of the valve cylinder member and the discharge port and shutting it off;
An air valve for switching between communication between the intake hole and the outside air introduction hole and switching off the air hole; and
The discharge valve is a check valve that restricts the flow from the discharge port side to the inner side of the valve cylinder member and allows the flow in the opposite direction,
The air valve is a check valve that regulates the flow from the intake hole side to the outside air introduction hole side and allows the flow in the opposite direction ,
The valve cylinder member protrudes in an annular shape toward the outer side in the radial direction and is fitted in the discharge cylinder member in a liquid-tight manner to partition the discharge cylinder member and the valve cylinder member in the container axial direction. Partition wall to be provided,
The partition wall defines a first communication space that communicates the inside of the valve cylinder member and the discharge port closer to the top plate portion side of the discharge cylinder member than the partition wall. Discharge container.

The discharge container according to claim 1 ,
The outside air introduction hole is formed in a portion of the discharge cylinder member that is located on the top wall portion side of the main body cylinder portion with respect to the partition wall, and the partition wall causes the main body cylinder portion to be closer to the partition wall. A discharge container characterized in that it communicates with the intake hole through a second communication space defined on the top wall side.

The discharge container according to claim 1 or 2 ,
An overcap that covers the discharge port is attached to the discharge body,
The discharge container, wherein the overcap blocks communication between the outside air introduction hole and the outside.