JP6478564B2

JP6478564B2 - Pouring spout

Info

Publication number: JP6478564B2
Application number: JP2014226182A
Authority: JP
Inventors: 佐々木　昌; 昌佐々木; 水落　正志; 正志水落; 佐々木　元; 元佐々木; 悟市川
Original assignee: Tokyo Light Industry Co Ltd
Current assignee: Tokyo Light Industry Co Ltd
Priority date: 2014-11-06
Filing date: 2014-11-06
Publication date: 2019-03-06
Anticipated expiration: 2034-11-06
Also published as: JP2016088581A

Description

本発明は、特に、点眼薬（目薬）等の充填液が充填される容器の口部に装着され、容器内の圧力により開閉する注出栓に関するものである。 The present invention particularly relates to a pouring spout mounted on the mouth of a container filled with a filling solution such as eye drops (eye drops) and opened and closed by the pressure in the container.

一般に、点眼薬等の薬液が充填される容器では、容器の胴部を押圧して容器に内圧を加えて、薬液を注出するタイプのものが多く使用されている。このタイプの容器では、薬液の注出を終わって胴部への押圧状態を解除すると、容器の胴部が弾性的に復元して元の形状に戻るようになるが、その際外部の空気が容器内部に入り込むために、空気中に存在する異物や雑菌が薬液に混入してしまう、という問題があった。この問題を解決するために、胴部への押圧状態を解除した後、使用者が操作することなく、迅速に容器内を密封するものが要求されている。 In general, in containers filled with a drug solution such as eye drops, many types are used in which the internal pressure is applied to the container by pressing the body of the container and the drug solution is poured out. In this type of container, when dispensing of the drug solution is finished and the pressure on the body is released, the body of the container elastically recovers and returns to its original shape, but at that time the external air is In order to enter the inside of the container, there has been a problem that foreign substances and bacteria present in the air are mixed in the drug solution. In order to solve this problem, it is required to rapidly seal the inside of the container without the user's operation after releasing the pressure on the body.

充填液の使用後、使用者が操作することなく容器内を密封できる注出栓の従来技術として、例えば、特許文献１が挙げられる。該特許文献１には、容器口部に嵌合されるキャップ本体は、前記容器口部に連通する吐出通路と、該吐出通路内に嵌合して、吐出孔を有するベース部と、該ベース部上に配置され、前記吐出孔からの内容物の吐出だけを許容する逆止弁と、を備え、該逆止弁は、前記吐出通路内に嵌合される円筒部と、該円筒部の内壁面から間隙を形成するように中心に向かって放射状に延びる弾性変形可能な複数の弾性片と、該各弾性片の先端に一体に接続され、前記吐出孔の吐出方向下流側にあって、該吐出孔を開閉する弁部材とから構成され、容器への内圧が解除されると、逆止弁の各弾性片が復元するために、弁部材が吐出孔を塞ぎ容器内を密封状態に維持することが開示されている。 As a prior art of the pouring spout which can seal the inside of a container, without using a user's operation after use of a filling liquid, patent document 1 is mentioned, for example. In the patent document 1, the cap body fitted to the container opening comprises a discharge passage communicating with the container opening, a base having a discharge hole fitted in the discharge passage, and the base A check valve disposed on the portion and permitting only the discharge of the contents from the discharge hole, the check valve comprising: a cylindrical portion fitted in the discharge passage; and A plurality of elastically deformable elastic pieces radially extending toward the center so as to form a gap from the inner wall surface, and integrally connected to the tips of the respective elastic pieces, and downstream of the discharge hole in the discharge direction, The discharge hole is opened and closed by a valve member, and when the internal pressure to the container is released, each elastic piece of the check valve is restored so that the valve member closes the discharge hole and keeps the inside of the container sealed. It is disclosed that.

特開２０１３−２４１１９７号公報JP, 2013-241197, A

しかしながら、特許文献１の発明では、内容物を吐出した後、逆止弁が作動することで、容器内を迅速に密封状態に維持することはできるが、使用時、容器の胴部を押圧し続けると、容器内の内容物が連続的に吐出されることになり、例えば、容器内に点眼薬等の薬液が充填されている場合、使用時、容器の胴部の押圧操作により薬液を適量滴下させることができず、特許文献１の発明を採用することができない。 However, in the invention of Patent Document 1, after the contents are discharged, the inside of the container can be rapidly maintained in a sealed state by operating the check valve, but when in use, the body of the container is pressed. If it continues, the contents in the container will be discharged continuously, for example, when the liquid medicine such as eyedrops is filled in the container, when in use, the liquid medicine is appropriate by pressing the body of the container. The invention of Patent Document 1 can not be adopted because it can not be dropped.

本発明は、かかる点に鑑みてなされたものであり、充填液の使用時には、容器の胴部への押圧時間に関わらず充填液を適量注出させることができ、且つ使用後には、使用者が手で操作することなく、容器内を密封状態に維持することが可能な注出栓を提供することを目的とする。 The present invention has been made in view of such a point, and when using the filling liquid, an appropriate amount of filling liquid can be dispensed regardless of the pressing time to the body of the container, and after use, the user It is an object of the present invention to provide a pouring spout which can keep the inside of the container sealed without manual operation.

本発明は、上記課題を解決するための手段として、請求項１に記載した発明は、充填液が充填される容器の口部に装着される合成樹脂製の注出栓であって、該注出栓は、前記容器の口部に連通する吐出孔と、該前記吐出孔と連通する注出孔と、前記吐出孔と前記注出孔との間に設けられる弁体と、を備え、該弁体は、前記吐出孔及び前記注出孔を開閉可能にする弁部と、該弁部の外周部から放射状に複数延び、容器の内圧により弾性変形する弾性片と、該各弾性片の端部に一体的に接続され、前記注出孔の周りに設けた係合凹部に嵌合する環状支持部と、前記各弾性片の間に設けられ、前記吐出孔からの充填液が流通する複数の流通孔と、前記弁部の上面から上方に向かって突設され、前記注出孔の内径より大径で、当該注出孔を開閉する円柱状部と、を備えることを特徴とするものである。
請求項２に記載した発明は、請求項１の発明において、前記注出孔周辺には、前記弁部の移動方向を一定にする環状突起部が形成されることを特徴とするものである。
請求項１の発明では、通常時には、弁体の弁部が吐出孔周辺の環状弁座（倒立円錐状面）に着座して該吐出孔が閉鎖された状態で容器内の密閉状態が維持されている。そして、充填液の使用時には、容器の胴部を押圧することで容器に内圧を加えると、容器の内圧が弁部に作用して各弾性片が弾性変形するために、弁部が吐出孔周辺の環状弁座から離脱されて注出孔へ向かって移動する。その後、弁体の弁部の円柱状部が注出孔周辺の環状弁座に着座すると注出孔が閉鎖される。そして、弁部が吐出孔から注出孔側への移動する瞬間は、吐出孔及び注出孔が開放されていることにより、その瞬間に充填液が適量、容器の口部から、開放された吐出孔、各流通孔及び注出孔を経由して外部に注出（滴下）される。この時、容器の胴部を押圧し続けても、注出孔は弁体の弁部により閉鎖された状態が維持されるために容器内の充填液が外部に注出されることはない。その後、充填液の注出を終わって容器の胴部への押圧状態を解除すると、容器への内圧が解除されるために、弁体の弁部が注出孔から吐出孔側に移動して、吐出孔周辺の環状弁座に着座し、弁部により吐出孔が閉塞されて、容器内の密封状態が維持される。
また、請求項２の発明では、注出孔周辺に、環状突起部が形成されているので、弁部が吐出孔周辺の環状弁座から離脱されて注出孔へ向かって移動する際、弁体の弁部の円柱状部が注出孔の環状突起部に沿って移動することで、その移動方向を一定にすることができる。 The present invention is a means for solving the above problems, and the invention described in claim 1 is a synthetic resin pouring spout fitted to the mouth of a container filled with the filling liquid The plug comprises a discharge hole communicating with the opening of the container, a pouring hole communicating with the discharge hole, and a valve provided between the discharge hole and the pouring hole. The valve body includes a valve portion which can open and close the discharge hole and the pouring hole, a plurality of elastic pieces radially extending from the outer peripheral portion of the valve portion and elastically deformed by the internal pressure of the container, and ends of the respective elastic pieces A plurality of annular support parts integrally connected to the part and fitted in engagement recesses provided around the pouring hole, and provided between the respective elastic pieces, and through which the filling liquid from the discharge hole flows and through channels, are projected upward from an upper surface of the valve portion, the note in diameter than the inner diameter of Deana, circle for opening and closing the note Deana And Jo portion and is characterized in that it comprises.
According to a second aspect of the present invention, in the first aspect of the present invention, an annular protrusion for making the moving direction of the valve portion constant is formed around the pouring hole .
In the first aspect of the present invention, normally, the closed state of the container is maintained in a state where the valve portion of the valve body is seated on the annular valve seat (inverted conical surface) around the discharge hole and the discharge hole is closed. ing. Then, when using the filling liquid, when the internal pressure is applied to the container by pressing the body of the container, the internal pressure of the container acts on the valve portion to elastically deform each elastic piece, so the valve portion is around the discharge hole It is released from the annular valve seat and moves toward the pouring hole. Thereafter, when the cylindrical portion of the valve portion of the valve body is seated on the annular valve seat around the pouring hole, the pouring hole is closed. Then, at the moment when the valve portion moves from the discharge hole to the discharge hole side, the discharge hole and the discharge hole are opened, and at that moment, an appropriate amount of filling liquid is released from the mouth of the container. It is poured out (dropped) to the outside through the discharge holes, the respective flow holes and the pouring holes. At this time, even if the body portion of the container is continuously pressed, the filling hole in the container is not discharged to the outside because the pouring hole is maintained closed by the valve portion of the valve body. Thereafter, when the discharge of the filling liquid is finished and the pressure on the body of the container is released, the internal pressure of the container is released, so the valve of the valve moves from the discharge hole to the discharge hole side. The valve seat is seated on an annular valve seat around the discharge hole, and the discharge hole is closed by the valve portion, and the sealed state in the container is maintained.
Further, in the invention of claim 2, since the annular projection is formed around the pouring hole, when the valve part is separated from the annular valve seat around the discharge hole and moves toward the pouring hole, the valve By moving the cylindrical portion of the valve portion of the body along the annular projection of the pouring hole, the moving direction can be made constant.

このように、使用時には、容器の胴部を押圧する時間に関わらず、略一定量の充填液を外部に注出（滴下）させることができ、しかも、使用後には、使用者が手で操作することなく、容器内を密封状態に維持することができ、外部空気の容器内への進入を抑制することができる。 In this way, at the time of use, it is possible to pour out (drop) a substantially constant amount of filling liquid to the outside regardless of the time for pressing the body of the container, and after use, the user manually operates it. Therefore, the inside of the container can be maintained in a sealed state, and the entry of external air into the container can be suppressed.

なお、容器内の充填液が点眼液等の薬液である場合、使用時には点眼液を適量滴下させることができ、使用後は使用者が操作することなく、容器内を密封状態に維持することができ、外気の容器内への進入を抑え、衛生的にも最良である。 When the filling liquid in the container is a chemical solution such as eye drops, an appropriate amount of eye drops can be dropped at the time of use, and after use, the inside of the container can be kept sealed without being operated by the user. It is possible to prevent the entry of outside air into the container, and it is the best in terms of hygiene.

本発明の注出栓によれば、充填液の使用時には、容器の胴部を押圧する時間に関わらず充填液を適量注出（滴下）させることができ、且つ使用後には、使用者が手で操作することなく、容器内を密封状態に維持することができる。これにより、本発明の注出栓は、容器内に充填された充填液、特に、点眼液を適量滴下させる注出栓として特に有効である。 According to the pouring spout of the present invention, when using the filling liquid, it is possible to pour out (drop) an appropriate amount of filling liquid regardless of the time for pressing the body of the container, and after use, the user can The inside of the container can be kept sealed without operating the Thus, the pouring spout of the present invention is particularly effective as a pouring spout for dropping an appropriate amount of filling solution filled in a container, in particular, an eye drop.

図１は、本発明の実施形態に係る注出栓が容器の口部に装着された状態を示す断面図である。FIG. 1 is a cross-sectional view showing a state where the pouring spout according to the embodiment of the present invention is attached to the mouth of a container. 図２は、本注出栓の構成である注出ノズルの断面図である。FIG. 2 is a cross-sectional view of the pouring nozzle which is the configuration of the regular pouring tap. 図３は、本注出栓の構成である吐出本体の断面図である。FIG. 3 is a cross-sectional view of a discharge main body which is a configuration of the main pouring spout. 図４は、本注出栓の構成である弁体の断面図である。FIG. 4 is a cross-sectional view of a valve body which is a configuration of the main pouring spout. 図５は、本注出栓の構成である弁体の斜視図である。FIG. 5 is a perspective view of a valve body which is a configuration of the main pouring spout. 図６は、本注出栓を経由して、容器内の充填液が外部に注出される様子を段階的に示したものである。FIG. 6 shows in a step-by-step manner how the filling liquid in the container is poured out through the pouring spout. 図７は、他の実施形態に係る注出栓の要部断面図であり、（ａ）は弁体の弁部が吐出孔を閉塞した状態を示し、（ｂ）は弁体の弁部が注出孔を閉塞した状態を示す。FIG. 7 is a cross-sectional view of the main part of the pouring spout according to another embodiment, wherein (a) shows a state in which the valve portion of the valve body blocks the discharge hole, and (b) shows the valve portion of the valve body The state where the pouring hole is closed is shown. 図８は、さらに他の実施形態に係る注出栓の要部断面図であり、（ａ）は弁体の弁部が吐出孔を閉塞した状態を示し、（ｂ）は弁体の弁部が注出孔を閉塞した状態を示す。FIG. 8 is a cross-sectional view of an essential portion of the pouring spout according to still another embodiment, wherein (a) shows a state in which the valve portion of the valve body blocks the discharge hole, and (b) shows the valve portion of the valve body Shows the state where the pouring hole was closed.

以下、本発明を実施するための形態を図１〜図８に基づいて詳細に説明する。
本発明の実施の形態に係る注出栓１は、図１に示すように、容器２の口部２ａに嵌合され、充填液を外部に注出（滴下）する注出ノズル５と、該注出ノズル５の円筒状嵌合壁部１０内に配置される吐出本体６と、注出ノズル５の円筒状嵌合壁部１０内で、吐出本体６の上方に配置される弁体７とから構成される。 Hereinafter, modes for carrying out the present invention will be described in detail based on FIGS. 1 to 8.
The pouring spout 1 according to the embodiment of the present invention is fitted to the opening 2a of the container 2 as shown in FIG. 1, and the pouring nozzle 5 for pouring the filling liquid to the outside (dropping), A discharge body 6 disposed in the cylindrical fitting wall 10 of the pouring nozzle 5, and a valve body 7 disposed above the discharge body 6 in the cylindrical fitting wall 10 of the pouring nozzle 5; It consists of

本注出栓１は、これら、注出ノズル５、吐出本体６及び弁体７の三つの構成部材を組み立てて構成される。本注出栓１は合成樹脂製で形成される。弁体７を成形する合成樹脂は、注出ノズル５及び吐出本体６を成形する合成樹脂よりも高弾性となる。具体的には、弁体７はポリエチレン樹脂（ＰＥ）にて成形される。注出ノズル５及び吐出本体６はポリプロピレン樹脂（ＰＰ）にて成形される。 The main pouring spout 1 is configured by assembling the three components of the pouring nozzle 5, the discharge main body 6, and the valve body 7. The main pouring spout 1 is made of synthetic resin. The synthetic resin for molding the valve body 7 has higher elasticity than the synthetic resin for molding the pouring nozzle 5 and the discharge main body 6. Specifically, the valve body 7 is formed of polyethylene resin (PE). The pouring nozzle 5 and the discharge main body 6 are formed of polypropylene resin (PP).

図１に示すように、容器２の内部には、例えば点眼薬等の充填液が充填される。容器２は、その胴部を押圧するなどして内圧を加えることで充填液を注出（滴下）させるタイプのものである。容器２の口部２ａは円筒状に形成される。容器２は、外容器と内容器とからなる二重容器（剥離容器と言われるものも含む）にて構成されてもよい。外容器の口部付近の内壁面に内容器の口部の外壁面が一体的に接続されており、内容器は、その内部に充填液が充填されると共に充填液の減少に伴いしぼみ変形する可撓性を有するものである。内容器の減容形状を保持するために外容器と内容器との間には外気が吸入されるように構成される。注出栓１は、外容器の口部に装着される。 As shown in FIG. 1, the inside of the container 2 is filled with a filling solution such as eye drops, for example. The container 2 is of a type in which the filling liquid is poured out (dropping) by applying an internal pressure by pressing the body portion or the like. The mouth 2a of the container 2 is formed in a cylindrical shape. The container 2 may be configured by a double container (including a so-called peelable container) consisting of an outer container and an inner container. The outer wall surface of the mouth of the inner container is integrally connected to the inner wall surface in the vicinity of the mouth of the outer container, and the inner container is filled with the filling liquid and squeezes and deforms as the filling liquid decreases. It has flexibility. Outside air is drawn between the outer container and the inner container in order to maintain the volume-reduced shape of the inner container. The pouring spout 1 is attached to the mouth of the outer container.

図１及び図２に示すように、注出ノズル５には、容器２の口部２ａ内に嵌合される円筒状嵌合壁部１０が形成される。円筒状嵌合壁部１０の上端には環状水平壁部１１が一体的に接続される。環状水平壁部１１の外周から外方に向かって一体的に環状鍔部１２が突設される。該環状鍔部１２の下面が容器２の口部２ａの上端面に当接する。環状水平壁部１１の径方向中央には、上方に向かってノズル部１３が延設される。円筒状嵌合壁部１０とノズル部１３とは同心状に位置する。 As shown in FIGS. 1 and 2, the pouring nozzle 5 is formed with a cylindrical fitting wall 10 fitted in the opening 2 a of the container 2. An annular horizontal wall 11 is integrally connected to the upper end of the cylindrical fitting wall 10. An annular collar portion 12 is integrally provided outwardly from the outer periphery of the annular horizontal wall portion 11. The lower surface of the annular collar 12 abuts on the upper end surface of the mouth 2 a of the container 2. At the radial center of the annular horizontal wall portion 11, the nozzle portion 13 is extended upward. The cylindrical fitting wall portion 10 and the nozzle portion 13 are concentrically positioned.

ノズル部１３内には、下方に位置する小径注出孔１７と、該小径注出孔１７から上方に向かって連続する大径注出孔１８とが同心状に形成される。大径注出孔１８が小径注出孔１７よりも上下方向の長さ（高さ）がはるかに長く形成される。環状水平壁部１１の下面で、小径注出孔１７の周辺が環状弁座２０として作用される。ノズル部１３の外壁面は、先端に向かって先細りとなるテーパ面１９に形成される。 In the nozzle portion 13, a small diameter pouring hole 17 located below and a large diameter pouring hole 18 continuous upward from the small diameter pouring hole 17 are formed concentrically. The large diameter pouring hole 18 is formed to be much longer in the vertical direction (height) than the small diameter pouring hole 17. On the lower surface of the annular horizontal wall portion 11, the periphery of the small diameter pouring hole 17 acts as an annular valve seat 20. The outer wall surface of the nozzle portion 13 is formed into a tapered surface 19 which is tapered toward the tip.

円筒状嵌合壁部１０の内壁面には、上下方向略中央部に内方に突設する第１係止突条部２１が周方向に延びている。円筒状嵌合壁部１０の内壁面には、第１係止突条部２１から環状水平壁部１１側に向かって間隔を置いて内方に突設する第２係止突条部２２が周方向に延びている。また、円筒状嵌合壁部１０の内壁面には、第１係止突条部２１と第２係止突条部２２との間に第１係合凹部２３が形成される。円筒状嵌合壁部１０の内壁面には、第２係止突条部２２と環状水平壁部１１の下面との間に第２係合凹部２４が形成される。 On the inner wall surface of the cylindrical fitting wall portion 10, a first locking protrusion 21 projecting inward at a substantially central portion in the vertical direction is extended in the circumferential direction. On the inner wall surface of the cylindrical fitting wall 10, there is a second locking ridge 22 projecting inward at an interval from the first locking ridge 21 toward the annular horizontal wall 11. It extends in the circumferential direction. Further, on the inner wall surface of the cylindrical fitting wall portion 10, a first engagement recess 23 is formed between the first locking protrusion 21 and the second locking protrusion 22. A second engagement recess 24 is formed on the inner wall surface of the cylindrical fitting wall 10 between the second locking protrusion 22 and the lower surface of the annular horizontal wall 11.

図１及び図３に示すように、吐出本体６は円筒状に形成される。吐出本体６の径方向中央部に吐出孔２８が形成される。吐出孔２８の内壁面は倒立円錐状面２９に形成される。吐出本体６は、吐出孔２８を含む径方向中央部位が上方に向かってやや隆起して構成される。該吐出孔２８の倒立円錐状面２９が環状弁座３０として作用する。吐出本体６の下面には、径方向中央部位に充填液を吐出孔２８に向かって案内する案内凹部３１が形成される。案内凹部３１と吐出孔２８とは連通する。 As shown in FIGS. 1 and 3, the discharge main body 6 is formed in a cylindrical shape. A discharge hole 28 is formed at the radial center of the discharge body 6. The inner wall surface of the discharge hole 28 is formed in an inverted conical surface 29. The discharge main body 6 is configured such that a radial center portion including the discharge hole 28 slightly bulges upward. The inverted conical surface 29 of the discharge hole 28 acts as an annular valve seat 30. In the lower surface of the discharge main body 6, a guide concave portion 31 for guiding the filling liquid toward the discharge hole 28 is formed at a radial center portion. The guide recess 31 and the discharge hole 28 communicate with each other.

図１、図４及び図５に示すように、弁体７は、径方向中央部に位置する弁部３５と、該弁部３５の外周部から放射状に複数延びる弾性片３６と、該各弾性片３６の端部に一体的に接続され、注出ノズル５の円筒状嵌合壁部１０の内壁面に設けた第２係合凹部２４に嵌合する環状支持部３７と、各弾性片３６の間に設けられ、充填液が流通する複数の流通孔３８とから構成される。 As shown in FIG. 1, FIG. 4 and FIG. 5, the valve body 7 has a valve portion 35 located at the center in the radial direction, elastic pieces 36 extending radially from the outer peripheral portion of the valve portion 35, An annular support portion 37 integrally connected to an end portion of the piece 36 and fitted in a second engagement recess 24 provided on the inner wall surface of the cylindrical fitting wall portion 10 of the pouring nozzle 5, and each elastic piece 36 And a plurality of flow holes 38 through which the filling liquid flows.

弁部３５は、倒立截頭円錐状部４０と、該倒立截頭円錐状部４０の上面から一体的に該倒立截頭円錐状部４０より小径で上方に延びる円柱状部４１とから構成される。倒立截頭円錐状部４０の外周面（倒立円錐状面）が、吐出本体６の吐出孔２８周辺の環状弁座３０（倒立円錐状面）に着座するようになる。弁部３５と環状支持部３７とは同心状に位置する。円柱状部４１の上端面の外径は、注出ノズル５の構成であるノズル部１３の小径注出孔１７の内径よりも大きく形成される。 The valve portion 35 includes an inverted frusto-conical portion 40 and a cylindrical portion 41 integrally extending from the upper surface of the inverted frusto-conical portion 40 and having a diameter smaller than that of the inverted frusto-conical portion 40 and upward. Ru. The outer peripheral surface (inverted conical surface) of the inverted truncated conical conical portion 40 is seated on the annular valve seat 30 (inverted conical surface) around the discharge hole 28 of the discharge main body 6. The valve portion 35 and the annular support portion 37 are concentrically located. The outer diameter of the upper end surface of the cylindrical portion 41 is formed larger than the inner diameter of the small diameter pouring hole 17 of the nozzle portion 13 which is the configuration of the pouring nozzle 5.

各弾性片３６のそれぞれは、断面矩形状で同じ厚さ及び同じ幅長で、該弁部３５の外周部からやや斜め上方に向かって延びている。各弾性片３６の幅寸法は全て同じである。各弾性片３６の厚み寸法も全て同じである。各弾性片３６の端部が環状支持部３７の内壁面に一体的に接続される。本実施形態では、弾性片３６は、周方向に９０°ピッチで４箇所形成される。各弾性片３６間に流通孔３８が９０°ピッチで４箇所形成される。環状支持部３７は、その外周縁が撓みやすいように薄肉に形成され、円環状に延びる外周部を注出ノズル５の円筒状嵌合壁部１０の内壁面に設けた第２係合凹部２４に沿うように下方に向かって湾曲させて構成される。 Each of the elastic pieces 36 has a rectangular shape in cross section and the same thickness and the same width, and extends slightly obliquely upward from the outer peripheral portion of the valve portion 35. The width dimensions of each elastic piece 36 are all the same. The thickness dimensions of each elastic piece 36 are all the same. The end of each elastic piece 36 is integrally connected to the inner wall surface of the annular support 37. In the present embodiment, the elastic pieces 36 are formed in four places at a pitch of 90 ° in the circumferential direction. Through holes 38 are formed at four positions at a pitch of 90 ° between the elastic pieces 36. The annular support portion 37 is formed thin so that the outer peripheral edge is easily bent, and the second engagement concave portion 24 is provided on the inner wall surface of the cylindrical fitting wall portion 10 of the pouring nozzle 5 with an annular peripherally extending outer peripheral portion. It is configured to be curved downward along the.

そして、本注出栓１を組み立てる際には、まず、弁体７を、弁部３５の円柱状部４１側から注出ノズル５の円筒状嵌合壁部１０内に挿入して、弁体７の環状支持部３７を円筒状嵌合壁部１０の内壁面に設けた第２係合凹部２４に嵌合させる。
続いて、吐出本体６を注出ノズル５の円筒状嵌合壁部１０内に挿入して、吐出本体６を、その吐出孔２８周辺の環状座面３０を弁体７の倒立截頭円錐状部４０の外周面に当接させながら上方に押し込み、吐出本体６の外周部を、円筒状嵌合壁部１０の内壁面に設けた第１係合凹部２３に嵌合させる。 And when assembling this pouring spout 1, first, insert the valve body 7 into the cylindrical fitting wall part 10 of the pouring nozzle 5 from the cylindrical part 41 side of the valve part 35, and a valve body 7 are fitted in the second engaging recess 24 provided on the inner wall surface of the cylindrical fitting wall 10.
Subsequently, the discharge main body 6 is inserted into the cylindrical fitting wall portion 10 of the pouring nozzle 5, and the discharge main body 6 is formed into an annular seating surface 30 around the discharge hole 28 in an inverted frusto-conical shape of the valve body 7. The outer peripheral portion of the discharge main body 6 is fitted into the first engagement recess 23 provided on the inner wall surface of the cylindrical fitting wall portion 10 while pushing upward while being in contact with the outer peripheral surface of the portion 40.

この結果、弁体７の弁部３５（倒立截頭円錐状部４０）の下端が、組み込み前の位置よりも上方に位置するために、弁体７の各弾性片３６の下向きの付勢力（復元力）により、弁体７の弁部３５に設けた倒立截頭円錐状部４０の外周面が吐出本体６の吐出孔２８周辺の環状弁座３０（倒立円錐状面２９）に密着して押圧するようになる。しかも、弁体７の弁部３５の下壁面（倒立截頭円錐状部４０の下壁面）と吐出本体６の案内凹部３１の底面とが面一で連続するようになり、弁部３５の下壁面全域（倒立截頭円錐状部４０の下壁面全域）が容器２の口部２ａ内に臨むようになる。そして、注出栓１の組み立てが完了する。 As a result, since the lower end of the valve portion 35 (inverted truncated cone portion 40) of the valve body 7 is positioned above the position before the assembly, the downward biasing force of each elastic piece 36 of the valve body 7 ( The outer circumferential surface of the inverted frusto-conical portion 40 provided in the valve portion 35 of the valve body 7 is in close contact with the annular valve seat 30 (inverted conical surface 29) around the discharge hole 28 of the discharge body 6 It comes to press. Moreover, the lower wall surface of the valve portion 35 of the valve body 7 (the lower wall surface of the inverted truncated conical portion 40) and the bottom surface of the guide recess 31 of the discharge main body 6 become flush and continuous. The entire wall surface (the entire lower wall surface of the inverted frustoconical portion 40) comes to face the inside of the mouth 2a of the container 2. And assembly of the pouring spout 1 is completed.

その後、本注出栓１を容器２の口部２ａに装着する際には、注出栓１の注出ノズル５の円筒状嵌合壁部１０を、容器２の口部２ａ内に嵌合させるように打栓する。なお、本実施形態では、本注出栓１を打栓方式により容器２の口部２ａに装着しているが、本注出栓１を螺合方式により容器２の口部２ａに装着する形態を採用してもよい。 After that, when the main pouring spout 1 is attached to the mouth 2 a of the container 2, the cylindrical fitting wall 10 of the pouring nozzle 5 of the pouring spout 1 is fitted in the mouth 2 a of the container 2 Tap it to make it In the present embodiment, the main pouring spout 1 is attached to the mouth 2a of the container 2 by the plugging method, but the present spouting stopper 1 is attached to the mouth 2a of the container 2 by the screwing method. May be adopted.

次に、本発明の実施の形態に係る注出栓１の作用を図６に基づいて説明する。
充填液を使用する際には、まず、注出栓１の注出ノズル５が注出対象物に指向するように容器２全体を傾けて注出姿勢にした状態で、容器２の胴部を押圧して容器２に内圧を加える。すると、図６（ａ）に示すように、容器２の内圧が弁体７の弁部３５の倒立截頭円錐状部４０の下壁面全域に作用することで、弁体７の各弾性片３６が屈曲するように弾性変形して、弁体７の弁部３５の倒立截頭円錐状部４０の外周面が吐出本体６の吐出孔２８周辺の環状弁座３０（倒立円錐状面２９）から離脱される。 Next, the operation of the pouring spout 1 according to the embodiment of the present invention will be described based on FIG.
When using the filling liquid, first, the barrel portion of the container 2 is inclined in a state where the entire container 2 is inclined so that the dispensing nozzle 5 of the dispensing plug 1 points to the dispensing target object. The pressure is applied to apply pressure to the container 2. Then, as shown in FIG. 6A, the internal pressure of the container 2 acts on the entire lower wall surface of the inverted truncated conical portion 40 of the valve portion 35 of the valve body 7 so that each elastic piece 36 of the valve body 7 The outer peripheral surface of the inverted frusto-conical portion 40 of the valve portion 35 of the valve body 7 is elastically deformed to bend from the annular valve seat 30 (inverted conical surface 29) around the discharge hole 28 of the discharge main body 6 Be removed.

その後、図６（ｂ）に示すように、容器２の内圧により、弁体７が各弾性片３６の付勢力に抗するようにして、注出ノズル５の小径注出孔１７側に移動すると共に、各弾性片３６がさらに屈曲しつつ、環状支持部３７の外周縁部が円筒状嵌合壁部１０の内壁面に設けた第２係合凹部２４に沿ってさらに湾曲して、弁体７の弁部３５に設けた円柱状部４１の上端面が小径注出孔１７周辺の環状弁座２０に着座した時点で注出ノズル５の小径注出孔１７が閉鎖される。この時、図６（ａ）に示すように、容器２の内圧により、弁体７の弁部３５が吐出本体６の吐出孔２８から注出ノズル５の小径注出孔１７へ向かって移動する瞬間、吐出本体６の吐出孔２８及び注出ノズル５の小径注出孔１７が共に開放されていることから、その瞬間だけ充填液が適量、容器２の口部２ａから、開放された吐出本体６の吐出孔２８、弁体７の各流通孔３８（図５参照）、注出ノズル５の小径注出孔１７及び大径注出孔１８を経由して外部に注出（滴下）される。 Thereafter, as shown in FIG. 6 (b), the valve body 7 is moved to the small diameter pouring hole 17 side of the pouring nozzle 5 so as to resist the urging force of each elastic piece 36 by the internal pressure of the container 2. At the same time, while the respective elastic pieces 36 are further bent, the outer peripheral edge portion of the annular support portion 37 is further curved along the second engagement recess 24 provided on the inner wall surface of the cylindrical fitting wall portion 10 The small diameter pouring hole 17 of the pouring nozzle 5 is closed when the upper end surface of the cylindrical portion 41 provided in the valve portion 35 of 7 is seated on the annular valve seat 20 around the small diameter pouring hole 17. At this time, as shown in FIG. 6A, the internal pressure of the container 2 moves the valve portion 35 of the valve body 7 from the discharge hole 28 of the discharge main body 6 toward the small diameter discharge hole 17 of the discharge nozzle 5 Since the discharge hole 28 of the discharge main body 6 and the small diameter discharge hole 17 of the discharge nozzle 5 are both open at this moment, the filling liquid is appropriately discharged at that moment, the discharge main body opened from the opening 2a of the container 2 It is poured out (dropped) to the outside through the 6 discharge holes 28, the respective flow holes 38 (see FIG. 5) of the valve body 7, the small diameter pouring hole 17 of the pouring nozzle 5 and the large diameter pouring hole 18. .

すなわち、容器２の内圧により、弁体７の弁部３５の倒立截頭円錐状部４０の外周面が吐出本体６の吐出孔２８周辺の環状弁座３０（倒立円錐状面２９）から離脱して、注出ノズル５の小径注出孔１７側に移動して、弁体７の弁部３５の円柱状部４１の上端面が該小径注出孔１７周辺の環状弁座２０に着座するまでの瞬間、充填液が容器２の口部２ａから、吐出本体６の案内凹部３１の底面に沿って吐出孔２８に集まり、該吐出孔２８から弁体７の各流通孔３８（図５参照）を経て、注出ノズル５の小径注出孔１７及び大径注出孔１８から適量外部に注出（滴下）される。その後、容器２の胴部を押圧し続けても、弁体７の弁部３５の円柱状部４１の上端面が、注出ノズル５の小径注出孔１７周辺の環状弁座２０に着座して小径注出孔１７が閉鎖される状態が維持されるので、充填液が外部に注出（滴下）されることはない。
このように、充填液を使用する際、容器２の胴部を押圧して容器２に内圧を加えると、充填液が過剰に注出されることなく、適量の充填液を注出（滴下）させることができる。 That is, the outer peripheral surface of the inverted truncated conical portion 40 of the valve portion 35 of the valve body 7 is separated from the annular valve seat 30 (inverted conical surface 29) around the discharge hole 28 of the discharge main body 6 by the internal pressure of the container 2. Until the upper end surface of the cylindrical portion 41 of the valve portion 35 of the valve body 7 is seated on the annular valve seat 20 around the small diameter injection hole 17 after moving to the small diameter injection hole 17 side of the injection nozzle 5 The filling liquid gathers in the discharge hole 28 from the opening 2a of the container 2 along the bottom surface of the guide recess 31 of the discharge main body 6 at the moment, and each flow hole 38 of the valve 7 from the discharge hole 28 (see FIG. 5) As a result, the small diameter pouring hole 17 and the large diameter pouring hole 18 of the pouring nozzle 5 are poured out (dropped) to an appropriate amount. Thereafter, the upper end surface of the cylindrical portion 41 of the valve portion 35 of the valve body 7 is seated on the annular valve seat 20 around the small diameter pouring hole 17 of the pouring nozzle 5 even if the body portion of the container 2 is continuously pressed. Since the state in which the small diameter pouring hole 17 is closed is maintained, the filling liquid is not poured (dropped) to the outside.
As described above, when using the filling liquid, when the internal pressure is applied to the container 2 by pressing the body of the container 2, the filling liquid is poured out (dropped) in an appropriate amount without being excessively discharged. be able to.

その後、充填液を適量注出した後容器２の胴部への押圧操作を止めると、図６（ｃ）に示すように、容器２への内圧が解除されるために、弁体７の各弾性片３６及び環状支持部３７が復元すると共に弁体７の弁部３５が吐出本体６側に移動し、弁体７の弁部３５の倒立截頭円錐状部４０の外周面が、吐出本体６の吐出孔２８周辺の環状弁座３０（倒立円錐状面２９）に着座する。そして、弁体７の弁部３５により吐出本体６の吐出孔２８が閉塞され、容器２内を密封状態に維持することができる。このように、使用直後は、使用者が手で操作することなく、容器２内を迅速に密封することができ、外部空気の容器２内への流入を抑制することができる。 Thereafter, when an appropriate amount of the filling liquid is discharged and the pressing operation on the body of the container 2 is stopped, the internal pressure to the container 2 is released as shown in FIG. The elastic piece 36 and the annular support portion 37 are restored and the valve portion 35 of the valve body 7 moves to the discharge main body 6 side, and the outer peripheral surface of the inverted truncated conical portion 40 of the valve portion 35 of the valve body 7 The annular valve seat 30 (inverted conical surface 29) is seated around the six discharge holes 28. And the discharge hole 28 of the discharge main body 6 is obstruct | occluded by the valve part 35 of the valve body 7, and the inside of the container 2 can be maintained in a sealed state. In this way, immediately after use, the inside of the container 2 can be quickly sealed without the user's manual operation, and the flow of external air into the container 2 can be suppressed.

以上説明したように、本発明の実施の形態に係る注出栓１は、注出ノズル５に、弁体７及び吐出本体６が組み付けられて構成される。そして、吐出本体６は、容器２の口部２ａに連通する吐出孔２８と、吐出孔２８周辺に設けられる環状弁座３０とを備えている。また、注出ノズル５は、吐出本体６の吐出孔２８と連通する小径注出孔１７及び大径注出孔１８と、小径注出孔１７周辺に設けられる環状弁座２０とを備えている。さらに、弁体７は、吐出本体６の吐出孔２８と注出ノズル５の小径注出孔１７との間に設けられており、常時は吐出孔２８を閉塞する方向に付勢され、容器２の内圧により、吐出本体６の吐出孔２８と注出ノズル５の小径注出孔１７との間を弾性的に移動可能な弁部３５を備えている。そして、該弁部３５は、吐出本体６の吐出孔２８周辺の環状弁座３０から離脱または着座して吐出孔２８を開閉可能で、且つ注出ノズル５の小径注出孔１７周辺の環状弁座２０から離脱または着座して小径注出孔１７を開閉可能に構成される。 As described above, the pouring spout 1 according to the embodiment of the present invention is configured by assembling the valve body 7 and the discharge main body 6 to the pouring nozzle 5. The discharge body 6 is provided with a discharge hole 28 communicating with the opening 2 a of the container 2 and an annular valve seat 30 provided around the discharge hole 28. Further, the pouring nozzle 5 includes a small diameter pouring hole 17 and a large diameter pouring hole 18 communicating with the discharge hole 28 of the discharge main body 6 and an annular valve seat 20 provided around the small diameter pouring hole 17. . Furthermore, the valve body 7 is provided between the discharge hole 28 of the discharge main body 6 and the small diameter discharge hole 17 of the discharge nozzle 5, and is normally urged in a direction to close the discharge hole 28. The valve portion 35 is elastically movable between the discharge hole 28 of the discharge main body 6 and the small diameter pouring hole 17 of the pouring nozzle 5 by the internal pressure of The valve portion 35 can be disengaged or seated from the annular valve seat 30 around the discharge hole 28 of the discharge main body 6 to open and close the discharge hole 28, and an annular valve around the small diameter discharge hole 17 of the discharge nozzle 5. It is configured to be able to open and close the small diameter pouring hole 17 by being separated or seated from the seat 20.

この結果、充填液の使用時には、容器２の胴部を押圧して容器２に内圧を加えると、弁体７の各弾性片３６及び環状支持部３７が弾性変形して、弁体７の弁部３５の倒立截頭円錐状部４０の外周面が吐出本体６の吐出孔２８周辺の環状弁座３０（倒立円錐状面）から離脱される。その後、弁体７の弁部３５の円柱状部４１の上端面が小径注出孔１７周辺の環状弁座２０に着座した時点で小径注出孔１７が閉鎖される。この時、弁部３５が吐出本体６の吐出孔２８から注出ノズル５の小径注出孔１７へ向かって移動する瞬間、適量の充填液が、容器２の口部２ａから、開放された吐出孔２８、弁体７の各流通孔３８、注出ノズル５の小径注出孔１７及び大径注出孔１８を経由して外部に注出（滴下）される。その後、充填液の注出が終わって容器２の胴部への押圧を止めると、容器２への内圧が解除されるために、弁体７の各弾性片３６及び環状支持部３７が復元することで、弁体７の弁部３５の倒立截頭円錐状部４０の外周面が吐出本体６の吐出孔２８周辺の環状弁座３０（倒立円錐状面）に着座して、弁部３５により吐出本体６の吐出孔２８が閉塞され、容器２内を密封状態に維持することができる。 As a result, when the filling liquid is used, when the internal pressure is applied to the container 2 by pressing the body of the container 2, the elastic pieces 36 and the annular support portion 37 of the valve 7 are elastically deformed. The outer peripheral surface of the inverted truncated conical portion 40 of the portion 35 is separated from the annular valve seat 30 (inverted conical surface) around the discharge hole 28 of the discharge main body 6. Thereafter, when the upper end surface of the cylindrical portion 41 of the valve portion 35 of the valve body 7 is seated on the annular valve seat 20 around the small diameter injection hole 17, the small diameter injection hole 17 is closed. At this time, at the moment when the valve portion 35 moves from the discharge hole 28 of the discharge body 6 toward the small diameter pouring hole 17 of the pouring nozzle 5, a suitable amount of filling liquid is discharged from the mouth 2a of the container 2 It is poured out (dropped) to the outside through the holes 28, the respective flow holes 38 of the valve body 7, the small diameter pouring hole 17 of the pouring nozzle 5 and the large diameter pouring hole 18. Thereafter, when the discharge of the filling liquid is finished and the pressure on the body of the container 2 is stopped, the internal pressure of the container 2 is released, so that the elastic pieces 36 and the annular support 37 of the valve 7 are restored. Thus, the outer peripheral surface of the inverted truncated conical portion 40 of the valve portion 35 of the valve body 7 is seated on the annular valve seat 30 (inverted conical surface) around the discharge hole 28 of the discharge main body 6. The discharge hole 28 of the discharge main body 6 is closed, and the inside of the container 2 can be maintained in a sealed state.

このように、本発明の実施の形態に係る注出栓１では、容器２の胴部を押圧する時間に関わらず、略一定量の充填液を外部に注出（滴下）することができ、しかも、充填液の注出が終わって容器２の胴部への押圧操作を止めると、迅速に容器２内を密閉することができるので、充填液として点眼液等の薬液を滴下させる注出栓１として、特に有効となる。また、充填液として醤油、酢やラー油等の調味料を適量滴下させる注出栓１としても有効である。 Thus, in the pouring spout 1 according to the embodiment of the present invention, a substantially constant amount of filling liquid can be poured out (dropped) to the outside regardless of the time for pressing the body of the container 2, Moreover, since the inside of the container 2 can be quickly sealed when the filling operation of the filling liquid is finished and the pressing operation on the body of the container 2 is stopped, the pouring stopper for dropping a liquid medicine such as eye drops as the filling liquid. This is particularly effective as 1. Moreover, it is effective also as the pouring spout 1 which drips a suitable quantity of seasonings, such as soy sauce, a vinegar, and a chili oil, as a filling liquid.

なお、図７に示すように、他の実施の形態に係る注出栓１ａとして、注出ノズル５の環状水平壁部１１の下面で、注出ノズル５の小径注出孔１７周辺に環状突起部５０を形成して、環状突起部５０の周りに環状弁座２０ａを設けようにする。該環状突起部５０の外壁面は下方に向かってやや縮径されるように形成される。この実施形態の場合、弁体７の弁部３５に設けた円柱状部４１の上端面に、その外周から上方に向かって環状密着部５１を突設する。該環状密着部５１の内壁面は上方に向かってやや拡径されるように形成される。弁体７の環状密着部５１の最小内径は、注出ノズル５の環状突起部５０の最大外径よりも僅かに大きく形成される。 As shown in FIG. 7, as the pouring spout 1a according to another embodiment, an annular protrusion is formed on the lower surface of the annular horizontal wall portion 11 of the pouring nozzle 5 and around the small diameter pouring hole 17 of the pouring nozzle 5. The portion 50 is formed so that the annular valve seat 20 a is provided around the annular protrusion 50. The outer wall surface of the annular projection 50 is formed to be slightly reduced in diameter downward. In the case of this embodiment, on the upper end surface of the cylindrical portion 41 provided in the valve portion 35 of the valve body 7, the annular adhesion portion 51 is provided so as to project upward from the outer periphery. The inner wall surface of the annular contact portion 51 is formed so as to slightly expand in diameter upward. The minimum inside diameter of the annular contact portion 51 of the valve body 7 is formed slightly larger than the maximum outside diameter of the annular protrusion 50 of the pouring nozzle 5.

そして、容器２の内圧により、弁体７の弁部３５が吐出本体６の吐出孔２８から注出ノズル５の小径注出孔１７側に移動すると、弁体７の弁部３５の円柱状部４１に設けた環状密着部５１が、注出ノズル５の環状突起部５０の外壁面に沿って移動する。その後、該弁体７の環状密着部５１の上端面が、注出ノズル５の環状突起部５０周りの環状弁座２０ａに着座することで、注出ノズル５の小径注出孔１７が弁体７の弁部３５により閉鎖される。このように、この実施形態では、弁体７の弁部３５の環状密着部５１の上端面が、注出ノズル５の環状突起部５０周辺の環状弁座２０ａに着座する際には、弁部３５の環状密着部５１が、注出ノズル５の環状突起部５０の外壁面に沿って着座するので、弁体７の弁部３５の移動方向を略一定にすることができ、その姿勢も安定させることができる。 Then, when the valve portion 35 of the valve body 7 moves from the discharge hole 28 of the discharge main body 6 to the small diameter pouring hole 17 side of the pouring nozzle 5 by the internal pressure of the container 2, the cylindrical portion of the valve portion 35 of the valve body 7 The annular contact portion 51 provided on the surface 41 moves along the outer wall surface of the annular projection 50 of the pouring nozzle 5. Thereafter, the upper end surface of the annular contact portion 51 of the valve body 7 is seated on the annular valve seat 20 a around the annular projection 50 of the ejection nozzle 5 so that the small diameter ejection hole 17 of the ejection nozzle 5 is a valve body It is closed by the valve 35 of 7. Thus, in this embodiment, when the upper end surface of the annular contact portion 51 of the valve portion 35 of the valve body 7 is seated on the annular valve seat 20 a around the annular projection portion 50 of the pouring nozzle 5, the valve portion Since the annular contact portion 51 of 35 is seated along the outer wall surface of the annular projection 50 of the pouring nozzle 5, the moving direction of the valve portion 35 of the valve body 7 can be made substantially constant, and its posture is stable. It can be done.

また、図８に示すように、さらに他の実施の形態に係る注出栓１ｂとして、注出ノズル５の環状水平壁部１１の下面で、注出ノズル５の小径注出孔１７周辺に環状突起部５０を形成して、環状突起部５０の内側に環状弁座２０ｂを設けるようにする。該環状突起部５０の内壁面は下方に向かってやや拡径するように形成される。この実施形態の場合、環状突起部５０の内側の環状弁座２０ｂの外径が、弁体７の弁部３５に設けた円柱状部４１の上端面の外径よりも僅かに大きく形成される。 Further, as shown in FIG. 8, as a pouring spout 1b according to still another embodiment, an annular ring is formed around the small diameter pouring hole 17 of the pouring nozzle 5 on the lower surface of the annular horizontal wall portion 11 of the pouring nozzle 5. The protrusion 50 is formed so that the annular valve seat 20 b is provided inside the annular protrusion 50. The inner wall surface of the annular protrusion 50 is formed to slightly expand in diameter downward. In the case of this embodiment, the outer diameter of the annular valve seat 20b inside the annular protrusion 50 is formed slightly larger than the outer diameter of the upper end face of the cylindrical portion 41 provided on the valve portion 35 of the valve body 7. .

そして、容器２の内圧により、弁体７の弁部３５が吐出本体６の吐出孔２８から注出ノズル５の小径注出孔１７側に移動すると、弁体７の弁部３５の円柱状部４１の外壁面が、注出ノズル５の環状突起部５０の内壁面に沿って移動する。その後、該弁体７の円柱状部４１の上端面が、注出ノズル５の環状突起部５０の内側の環状弁座２０ｂに着座することで、注出ノズル５の小径注出孔１７が弁体７の弁部３５により閉鎖される。このように、この実施形態では、弁体７の弁部３５の円柱状部４１の上端面が、注出ノズル５の環状突起部５０の内側の環状弁座２０ｂに着座する際には、弁部３５の円柱状部４１が、注出ノズル５の環状突起部５０の内壁面に沿って着座するので、弁体７の弁部３５の移動方向を略一定にすることができ、その姿勢も安定させることができる。 Then, when the valve portion 35 of the valve body 7 moves from the discharge hole 28 of the discharge main body 6 to the small diameter pouring hole 17 side of the pouring nozzle 5 by the internal pressure of the container 2, the cylindrical portion of the valve portion 35 of the valve body 7 The outer wall surface 41 moves along the inner wall surface of the annular protrusion 50 of the pouring nozzle 5. Thereafter, the upper end surface of the cylindrical portion 41 of the valve body 7 is seated on the annular valve seat 20 b inside the annular projection 50 of the dispensing nozzle 5 so that the small diameter dispensing hole 17 of the dispensing nozzle 5 is a valve It is closed by the valve 35 of the body 7. As described above, in this embodiment, when the upper end surface of the cylindrical portion 41 of the valve portion 35 of the valve body 7 is seated on the annular valve seat 20 b inside the annular projection 50 of the pouring nozzle 5, the valve Since the cylindrical portion 41 of the portion 35 is seated along the inner wall surface of the annular protrusion 50 of the pouring nozzle 5, the moving direction of the valve portion 35 of the valve body 7 can be made substantially constant, and its posture is also It can be stabilized.

また、本発明の実施の形態では、本注出栓１、１ａ、１ｂの小径注出孔１７及び大径注出孔１８を気密的に塞ぐキャップ体は採用されていないが、当然ながら注出栓１、１ａ、１ｂを被冠するキャップ体を備えてもよい。詳しくは、キャップ体を注出栓１、１ａ、１ｂにヒンジを介して連結して、ヒンジを折り返すことでキャップ体を注出栓１、１ａ、１ｂを被冠するようにしてもよいし、キャップ体を注出栓１、１ａ、１ｂを被冠するように螺合方式で装着してもよい。キャップ体を採用することにより、注出ノズル５のノズル部１３の大径注出孔１８の上端から、円筒状嵌合壁部１０内で弁体７の弁部３５が吐出孔２８内に着座した状態の吐出本体６の上面に至る空間を密閉することができ、さらに容器２内を二重で密閉することができる。 Further, in the embodiment of the present invention, although a cap body for airtightly closing the small diameter pouring hole 17 and the large diameter pouring hole 18 of the real pouring spouts 1, 1a, 1b is not adopted, it is natural You may provide the cap body which crowns the stoppers 1 and 1b. Specifically, the cap body may be connected to the pouring spouts 1, 1a, 1b via a hinge, and the cap may be covered with the spouting spouts 1, 1a, 1b by folding back the hinge, The cap body may be attached by screwing so as to cover the pouring spouts 1, 1a, 1b. By adopting the cap body, the valve portion 35 of the valve body 7 is seated in the discharge hole 28 in the cylindrical fitting wall portion 10 from the upper end of the large diameter injection hole 18 of the nozzle portion 13 of the injection nozzle 5 The space leading to the upper surface of the discharge body 6 in the above state can be sealed, and the inside of the container 2 can be sealed in a double manner.

１、１ａ、１ｂ注出栓，２容器，２ａ口部，５注出ノズル，６吐出本体，７弁体，１７小径注出孔，１８大径注出孔，２０環状弁座（小径注出孔の周辺），２８吐出孔，３０環状弁座（吐出孔の周辺），３５弁部 1, 1a, 1b pouring spouts, 2 containers, 2a mouth, 5 spouting nozzles, 6 dispensing bodies, 7 valve bodies, 17 small diameter pouring holes, 18 large diameter pouring holes, 20 annular valve seat (small diameter pouring Around the hole), 28 discharge hole, 30 annular valve seat (around the discharge hole), 35 valve part

Claims

A synthetic resin pouring spout mounted on the mouth of a container filled with the filling liquid,
The pouring spout is
A discharge hole communicating with a mouth of the container;
A pouring hole communicating with the discharge hole;
And a valve provided between the discharge hole and the pouring hole.
The valve body is
A valve portion that enables the discharge hole and the pouring hole to be opened and closed;
A plurality of elastic pieces radially extending from the outer peripheral portion of the valve portion and elastically deformed by the internal pressure of the container;
An annular support integrally connected to an end of each of the elastic pieces and fitted in an engagement recess provided around the pouring hole;
A plurality of flow holes provided between the respective elastic pieces and through which the filling liquid from the discharge holes flows;
A cylindrical portion projecting upward from the upper surface of the valve portion and having a diameter larger than the inner diameter of the pouring hole, which opens and closes the pouring hole;
The pouring spout characterized by having.

The pouring spout according to claim 1 , wherein an annular protrusion for making the moving direction of the valve portion constant is formed around the pouring hole.