JP6281896B2 - Check valve for containers - Google Patents

Check valve for containers Download PDF

Info

Publication number
JP6281896B2
JP6281896B2 JP2013212194A JP2013212194A JP6281896B2 JP 6281896 B2 JP6281896 B2 JP 6281896B2 JP 2013212194 A JP2013212194 A JP 2013212194A JP 2013212194 A JP2013212194 A JP 2013212194A JP 6281896 B2 JP6281896 B2 JP 6281896B2
Authority
JP
Japan
Prior art keywords
support member
valve
valve body
valve seat
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2013212194A
Other languages
Japanese (ja)
Other versions
JP2015075181A (en
Inventor
尚 杉山
尚 杉山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Closures Co Ltd
Original Assignee
Nippon Closures Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Closures Co Ltd filed Critical Nippon Closures Co Ltd
Priority to JP2013212194A priority Critical patent/JP6281896B2/en
Publication of JP2015075181A publication Critical patent/JP2015075181A/en
Application granted granted Critical
Publication of JP6281896B2 publication Critical patent/JP6281896B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Bag Frames (AREA)
  • Check Valves (AREA)

Description

本発明は、パウチに設けられたスパウト等の容器口部に内挿される容器用逆止弁に関する。   The present invention relates to a check valve for a container that is inserted into a container mouth portion such as a spout provided in a pouch.

従来、内容物が容器口部から充填される容器において、容易に内容物を充填可能とし、かつ、充填された内容物の外部への漏出を防止するために、容器口部に逆流防止機構としての逆止弁を内装したものが公知である。
例えば、特許文献１には、一端が弁座を構成する筒部（内筒部２４）を一体に設けた弁座支持部材（雌コネクター２０）を容器口部であるスパウト（１０）の注出孔の上部から挿入・固定し、弁体（着座部３４）を弾性変位可能に一体に設けた弁体支持部材（逆止弁３０）を容器口部であるスパウト（１０）の下部から挿入・固定することで、逆止弁が内装される構成の逆流防止機構が記載されている。 Conventionally, in a container in which the contents are filled from the container mouth, the contents can be easily filled, and in order to prevent leakage of the filled contents to the outside, as a backflow prevention mechanism at the container mouth A check valve is known.
For example, in Patent Document 1, a spout (10) serving as a container mouth portion is provided with a valve seat support member (female connector 20) integrally provided with a cylindrical portion (inner cylindrical portion 24) whose one end constitutes a valve seat. The valve body support member (check valve 30), which is inserted and fixed from the upper part of the hole and integrally provided with the valve body (seat part 34) so as to be elastically displaceable, is inserted from the lower part of the spout (10) which is the container mouth part. A backflow prevention mechanism having a configuration in which a check valve is internally provided by being fixed is described.

また、特許文献２には、容器口部であるスパウト（口元手段２）の注出孔内部に弁座（弁座１０、フランジ６）を一体に設け、弁体（逆止弁体９）を弾性変位可能に挿入することで、逆止弁が内装される構成（特許文献２の図３、図５〜７に示された構成）の逆流防止機構が記載されている。
また、特許文献２には、一端が弁座を構成する筒部を一体に設けた弁座支持部材（弁座体５）と、弁体（逆止弁４）を弾性変位可能に一体に設けた弁体支持部材を、容器口部であるスパウト（口元手段２）の注出孔の上部から挿入・固定することで、逆止弁が内装される構成（特許文献２の図２に示された構成）の逆流防止機構が記載されている。 Further, in Patent Document 2, a valve seat (valve seat 10, flange 6) is integrally provided inside a spout hole of the spout (mouth means 2) that is a container mouth portion, and a valve body (check valve body 9) is provided. A backflow prevention mechanism having a configuration in which a check valve is installed by being inserted so as to be elastically displaceable (configuration shown in FIGS. 3 and 5 to 7 of Patent Document 2) is described.
Further, in Patent Document 2, a valve seat support member (valve seat body 5), which is integrally provided with a cylindrical portion whose one end constitutes a valve seat, and a valve body (check valve 4) are integrally provided so as to be elastically displaceable. The valve body support member is inserted and fixed from the upper part of the spout hole of the spout (mouth means 2) that is the container mouth portion, so that the check valve is built in (see FIG. 2 of Patent Document 2). The backflow prevention mechanism is described.

特許第４６０５５６８号公報（全頁、全図）Japanese Patent No. 4605568 (all pages, all figures) 特許第３３０７８８９号公報（全頁、全図）Japanese Patent No. 3307889 (all pages, all figures)

しかしながら、上記特許文献１に示すような公知の構成では、弁座支持部材と弁体支持部材が別部材であるため、部品点数が多くなり、組立工数も増加するという問題があった。
また、上記の機構を容器口部であるスパウトに固定するには、弁座支持部材と弁体支持部材のそれぞれを注出孔内部に固定するための形状、構造を設ける必要があり、スパウトを専用の形状とする必要があった。
上記特許文献２の図３、図５〜７に示すような公知の構成では、容器口部であるスパウトの注出孔内部に弁座を形成するフランジを設ける必要があり、容器口部であるスパウトを専用の形状とする必要があった。
また、上記特許文献２の図２に示すような公知の構成では、弁座支持部材と弁体支持部材を、上記特許文献２の図５、図６に示すような公知の構成では、弁体と弾性部材を、上記特許文献２の図６、図７に示すような公知の構成では、弁体と弁体の挿入・固定のための部材を、それぞれ別部材とする必要があり、部品点数が多くなり、組立工数も増加するという問題があった。
さらに、上記特許文献２の図２、図３に示すような公知の構成では、弁体がフラップ状であり、強い圧力がかかった場合には逆流防止効果が低いという問題があった。 However, in the known configuration as shown in Patent Document 1, since the valve seat support member and the valve body support member are separate members, there is a problem that the number of parts increases and the number of assembly steps increases.
Further, in order to fix the above mechanism to the spout that is the container mouth portion, it is necessary to provide a shape and a structure for fixing each of the valve seat support member and the valve body support member inside the dispensing hole. It was necessary to use a special shape.
In the known configuration as shown in FIG. 3 and FIGS. 5 to 7 of Patent Document 2, it is necessary to provide a flange for forming a valve seat inside the spout hole of the spout, which is the container mouth, which is the container mouth. It was necessary to make the spout a special shape.
Further, in the known configuration as shown in FIG. 2 of Patent Document 2, the valve seat support member and the valve body support member are used. In the known configuration as shown in FIGS. In the known structure as shown in FIGS. 6 and 7 of Patent Document 2, the valve body and the member for insertion / fixation of the valve body need to be separate members, respectively. As a result, there was a problem that the number of assembly steps increased.
Furthermore, in the known configuration as shown in FIGS. 2 and 3 of the above-mentioned Patent Document 2, there is a problem that the valve body has a flap shape, and when strong pressure is applied, the backflow prevention effect is low.

そこで本発明は、前述したような公知の容器口部に内装される容器用逆止弁の問題を解決するものであって、部品点数が少なく、製造や組立が容易であり、容器口部を専用の形状とする必要がなく、汎用性が高い容器用逆止弁を提供することを目的とする。   Therefore, the present invention solves the problem of the container check valve installed in the known container mouth as described above, has a small number of parts, and is easy to manufacture and assemble. An object is to provide a check valve for a container that does not need a special shape and has high versatility.

本発明は、容器口部に内装される容器用逆止弁であって、一端が弁座を構成する筒部を一体に設けた弁座支持部材と、弁体を弾性変位可能に一体に設けた弁体支持部材と、弁座支持部材および弁体支持部材と一体に形成された接続片とを有し、弁体が弁座に弾性的に押圧された状態で弁座支持部材と弁体支持部材とが固定可能に形成され、前記弁座支持部材と弁体支持部材には、それぞれ、前記弁体が弁座に弾性的に押圧された状態で前記弁座支持部材と弁体支持部材とを固定する固定係合片を有し、前記固定係合片が、前記弁体および弁座とは異なる位置に設けられていることにより、前記課題を解決するものである。 The present invention relates to a check valve for a container installed in a container mouth, and a valve seat support member having one end integrally formed with a cylindrical portion constituting a valve seat, and a valve body provided integrally so as to be elastically displaceable. The valve seat support member, and the valve seat support member and the connection piece formed integrally with the valve body support member, the valve seat support member and the valve body in a state where the valve body is elastically pressed against the valve seat. A support member is formed so as to be fixable , and the valve seat support member and the valve body support member are respectively in a state in which the valve body is elastically pressed against the valve seat. The fixed engagement piece is fixed, and the fixed engagement piece is provided at a position different from the valve body and the valve seat .

本請求項１に係る発明の容器用逆止弁は、弁座支持部材および弁体支持部材と一体に形成された接続片とを有していることにより、これらを一体に製造することが可能であり、部品点数を少なくし製造や組立が容易となる。
また、弁体が弁座に弾性的に押圧された状態で弁座支持部材と弁体支持部材とが固定可能に形成されていることにより、容器口部の構造にかかわらず注出孔に挿入するだけで逆止弁として機能させることができるため、容器口部を専用の形状とする必要がなく、従来の一般的な容器口部やスパウト等をそのまま使用して容易に内装することができ、汎用性が向上する。
また、弁座支持部材と弁体支持部材とを固定する固定係合片を有し、固定係合片が弁体および弁座とは異なる位置に設けられていることにより、逆止弁自体の組立を容器口部の注出孔に挿入する前に完了させることが可能となり、組立作業がさらに容易となる。
また、容器口部に内挿された状態での弁座支持部材と弁体支持部材との相対的な移動が防止され、弁体と弁座の弾性押圧力が低下して逆流防止効果が損なわれることを防止できる。 Since the check valve for a container according to the first aspect of the present invention has the valve seat support member and the connection piece formed integrally with the valve body support member, these can be manufactured integrally. Therefore, the number of parts is reduced, and manufacturing and assembly are facilitated.
In addition, the valve seat support member and the valve body support member can be fixed in a state where the valve body is elastically pressed against the valve seat, so that it can be inserted into the dispensing hole regardless of the structure of the container mouth portion. Because it can function as a check valve, it is not necessary to make the container mouth part a special shape, and it can be easily installed using conventional general container mouth parts and spouts as they are. , Improve versatility.
In addition, a fixed engagement piece for fixing the valve seat support member and the valve body support member is provided, and the fixed engagement piece is provided at a position different from the valve body and the valve seat. The assembly can be completed before being inserted into the outlet hole of the container mouth, and the assembly work is further facilitated.
In addition, the relative movement of the valve seat support member and the valve body support member in the state inserted in the container mouth is prevented, and the elastic pressing force between the valve body and the valve seat is lowered to impair the backflow prevention effect. Can be prevented.

本請求項２に記載の構成によれば、接続片が筒部の側方に複数設けられていることにより、弁座支持部材および弁体支持部材と一体に形成された接続片とが一つの部品として一体に製造された逆止弁が、組立前は弁座支持部材と弁体支持部材とが容器口部の注出孔の延在方向（内容物の流動方向）に離間した状態とし、接続片の変形により弁座支持部材と弁体支持部材とを注出孔の延在方向（内容物の流動方向）に接近させることが可能となる。
このことで、弁座支持部材と弁体支持部材とを固定するための押圧方向が、容器口部の注出孔への挿入方向と同方向となるため、逆止弁の組立作業と、逆止弁の容器口部の注出孔への挿入作業を連続的に、あるいは、同時に行うことが可能となり、全体の組立作業がさらに容易となる。 According to the configuration of the present invention, a plurality of connection pieces are provided on the side of the cylindrical portion, so that the connection piece formed integrally with the valve seat support member and the valve body support member is one. The check valve manufactured integrally as a part is in a state in which the valve seat support member and the valve body support member are separated in the extending direction of the outlet hole of the container mouth (the flow direction of the contents) before assembly. By deforming the connecting piece, the valve seat support member and the valve body support member can be brought close to the extending direction of the pouring hole (the flow direction of the contents).
As a result, the pressing direction for fixing the valve seat support member and the valve body support member is the same direction as the insertion direction of the container mouth portion into the extraction hole. the insertion operation of the Note Deana the container opening stop valve continuously, or it can be performed simultaneously, that Do and even easier overall assembly operation.

本請求項３に記載の構成によれば、接続片が筒部の側方であって、かつ、軸対称位置に設けられ、固定係合片が接続片と同一の周方向位置に設けられていることにより、射出成形等の金型によって、弁座支持部材、弁体支持部材および接続片を一つの部品として一体に製造することが可能であり、かつ、分割される金型を少なくすることができ、製造がさらに容易となる。
本請求項４に記載の構成によれば、弁座支持部材および弁体支持部材の少なくとも一方の外周には、容器口部の注出孔に圧入可能なリブが設けられていることにより、容器口部の注出孔に挿入された逆止弁が強固に固定されるとともに、逆止弁の外周からの内容物の漏洩を防止できる。
また、少なくとも弁座支持部材または弁体支持部材の、先に挿入される部材の外周に注出孔に圧入可能なリブが設けられていた場合、挿入時に弁座支持部材と弁体支持部材とが相対的に近づくため、逆止弁の組立作業と、逆止弁の容器口部の注出孔への挿入作業を単一の工程で同時に行うことが可能となり、組立作業がさらに容易となる。 According to the configuration of the third aspect of the present invention , the connecting piece is provided on the side of the cylindrical portion and at an axially symmetric position, and the fixed engaging piece is provided at the same circumferential position as the connecting piece. Therefore, it is possible to integrally manufacture the valve seat support member, the valve body support member and the connection piece as one component by a mold such as injection molding, and reduce the number of divided molds. Can be manufactured more easily.
According to the configuration of the fourth aspect of the present invention, the outer periphery of at least one of the valve seat support member and the valve body support member is provided with a rib that can be press-fitted into the outlet hole of the container mouth portion. The check valve inserted into the outlet hole of the mouth is firmly fixed, and the contents can be prevented from leaking from the outer periphery of the check valve.
In addition, when at least the valve seat support member or the valve body support member is provided with a rib that can be press-fitted into the extraction hole on the outer periphery of the member inserted first, the valve seat support member and the valve body support member Therefore, the assembly work of the check valve and the insertion work of the check valve into the outlet hole can be performed simultaneously in a single process, making the assembly work easier. .

本請求項５に記載の構成によれば、弁座支持部材および弁体支持部材のいずれか一方の端部外周には、容器口部の注出孔に嵌合不能なフランジ部が設けられていることにより、フランジ部が容器口部の注出孔の端部に突き当たるまで逆止弁を挿入して注出孔内での内装位置を規定できるため、逆止弁に合わせて容器口部の形状を変更する必要がなく、従来の一般的な容器口部やスパウト等をそのまま使用でき、汎用性が向上する。
本請求項６に記載の構成によれば、弁体は弁体支持部材に一体に設けられた複数の弾性保持アームに一体に形成され、軸方向への弾性変位可能に形成されていることにより、一体に形成された逆止弁全体の材質を変更することなく、保持アームの形状、構造の設計で弁体の弁座への押圧力を最適に設定することが可能となる。
本請求項７に記載の構成によれば、弁体は弁座に向かって凸となるドーム形状に形成されていることにより、弁座と弁体の相対位置のずれや相対姿勢のずれが生じても、弁体が弁座に押圧された際に位置や姿勢が修正され、弁体と弁座が均等に密着するため、さらに逆流防止効果が確実となる。 According to the structure of this Claim 5 , the flange part which cannot be fitted in the extraction hole of a container opening part is provided in the outer periphery of either one of a valve seat support member and a valve body support member. Since the check valve can be inserted until the flange part hits the end of the outlet hole of the container mouth, the interior position within the outlet hole can be defined. There is no need to change the shape, and conventional general container mouths and spouts can be used as they are, improving versatility.
According to the configuration of the sixth aspect of the present invention , the valve body is formed integrally with the plurality of elastic holding arms provided integrally with the valve body support member, and is formed so as to be elastically displaceable in the axial direction. Therefore, it is possible to optimally set the pressing force to the valve seat of the valve body by designing the shape and structure of the holding arm without changing the material of the whole check valve formed integrally.
According to the configuration of the seventh aspect of the present invention , the valve body is formed in a dome shape that is convex toward the valve seat, thereby causing a relative position shift or a relative posture shift between the valve seat and the valve body. However, when the valve body is pressed against the valve seat, the position and posture are corrected, and the valve body and the valve seat are evenly adhered to each other, so that the backflow prevention effect is further ensured.

本発明の１実施形態である逆止弁の斜視図。The perspective view of the non-return valve which is one Embodiment of this invention. 本発明の１実施形態である逆止弁の半断面正面図。The half section front view of the check valve which is one embodiment of the present invention. 本発明の１実施形態である逆止弁の半断面側面図。The half section side view of the non-return valve which is one Embodiment of this invention. 本発明の１実施形態である逆止弁の平面図。The top view of the non-return valve which is one Embodiment of this invention. 本発明の１実施形態である逆止弁の底面図。The bottom view of the non-return valve which is one Embodiment of this invention. 本発明の１実施形態である逆止弁の固定時の半断面正面図。The half section front view at the time of fixation of the check valve which is one embodiment of the present invention. 本発明の１実施形態である逆止弁のスパウトへの内装時の半断面正面図。The half section front view at the time of the interior to the spout of the check valve which is one embodiment of the present invention. 図７の内容物流入時の半断面正面図。The half section front view at the time of the contents inflow of FIG.

以下に、本発明の１実施形態である逆止弁１００の構成について、図面に基づいて説明する。
逆止弁１００は、図１乃至図５に示すように、筒部１１１を一体に設けた弁座支持部材１１０と、弁体１２１を弾性変位可能に一体に設けた弁体支持部材１２０と、弁座支持部材１１０および弁体支持部材１２０と一体に形成された接続片１３０とを有し、例えば、単一の樹脂材料で射出成形により製造される。
弁座支持部材１１０は、筒部１１１と上部筒部１１５とを有しており、筒部１１１の最下端が弁座１１２を構成している。
上部筒部１１５は、筒部１１１の上端から上方に延在しており、その最大径は筒部１１１の最大径より大きく形成されている。 Below, the structure of the non-return valve 100 which is one Embodiment of this invention is demonstrated based on drawing.
As shown in FIGS. 1 to 5, the check valve 100 includes a valve seat support member 110 integrally provided with a cylindrical portion 111, a valve body support member 120 integrally provided with a valve body 121 so as to be elastically displaceable, The valve seat support member 110 and the valve body support member 120 and a connection piece 130 formed integrally with the valve seat support member 120 are manufactured, for example, by injection molding using a single resin material.
The valve seat support member 110 has a cylindrical portion 111 and an upper cylindrical portion 115, and the lowermost end of the cylindrical portion 111 constitutes the valve seat 112.
The upper cylindrical portion 115 extends upward from the upper end of the cylindrical portion 111, and the maximum diameter is formed larger than the maximum diameter of the cylindrical portion 111.

弁体支持部材１２０は、接続壁部１２５と筒壁部１２６を有しているとともに、筒壁部１２６の内周側に一体に形成された複数の弾性保持アーム１２２を介して軸方向への弾性変位可能な弁体１２１を有しており、弁体１２１の弁座１１２に対向する面が凸となるドーム形状に形成されている。
接続壁部１２５は、筒壁部１２６の上端から上方に向かって板状に２箇所形成されており、筒壁部１２６の両側方において互いが軸対象位置に対向するように設けられている。
本実施形態では、弾性保持アーム１２２は、図１、図５に示すように、弁体支持部材１２０の筒壁部１２６との接続部と弁体１２１との接続部の間を周方向に延びる形状で３箇所設けられているが、弁体１２１を弁座１１２に弾性的に押圧可能な構成であればいかなる形状でもよく、その数も任意でよい。 The valve body support member 120 has a connection wall portion 125 and a cylindrical wall portion 126, and in the axial direction via a plurality of elastic holding arms 122 integrally formed on the inner peripheral side of the cylindrical wall portion 126. It has a valve body 121 that can be elastically displaced, and is formed in a dome shape with a convex surface facing the valve seat 112 of the valve body 121.
Two connecting wall portions 125 are formed in a plate shape upward from the upper end of the cylindrical wall portion 126, and are provided on both sides of the cylindrical wall portion 126 so as to face each other at the axial target position.
In this embodiment, as shown in FIGS. 1 and 5, the elastic holding arm 122 extends in the circumferential direction between a connection portion between the valve body support member 120 and the tubular wall portion 126 and a connection portion between the valve body 121. Although the shape is provided at three locations, any shape may be used as long as the valve body 121 can be elastically pressed against the valve seat 112, and the number thereof may be arbitrary.

接続片１３０は、弁座支持部材１１０の筒部１１１の両側方と弁体支持部材１２０の接続壁部１２５の内周側との間に、図２に示す正面視でＬ字状に設けられており、筒部１１１の外面と一体に軸方向に向かって板状に延びる上部接続片１３１と、上部接続片１３１の下端から水平方向に向かって板状に延びる下部接続片１３２とから形成されている。
２箇所の上部接続片１３１は、互いが軸対象位置に対向するように設けられている。
また、下部接続片１３２は、上部接続片１３１の下端から延びて接続壁部１２５の内周面と接続されている。
弁座支持部材１１０の上部接続片１３１の上端部には外方に向かって突出した弁座側固定係合片１４２が２箇所設けられ、弁体支持部材１２０の接続壁部１２５の上端部には、内方に向かって突出した弁体側固定係合片１４１が２箇所設けられている。
また、弁座支持部材１１０の上部筒部１１５は、弁体側固定係合片１４１の外方に位置し、下方に垂下する２つの押さえ壁部１１４を有している。 The connection piece 130 is provided in an L shape in a front view shown in FIG. 2 between both sides of the tube portion 111 of the valve seat support member 110 and the inner peripheral side of the connection wall portion 125 of the valve body support member 120. The upper connection piece 131 is integrally formed with the outer surface of the cylindrical portion 111 and extends in a plate shape in the axial direction, and the lower connection piece 132 extends in a plate shape in the horizontal direction from the lower end of the upper connection piece 131. ing.
The two upper connection pieces 131 are provided so as to face each other at the axial target position.
The lower connection piece 132 extends from the lower end of the upper connection piece 131 and is connected to the inner peripheral surface of the connection wall portion 125.
Two valve seat side fixed engagement pieces 142 projecting outward are provided at the upper end portion of the upper connection piece 131 of the valve seat support member 110, and are provided at the upper end portion of the connection wall portion 125 of the valve body support member 120. Are provided with two valve element side fixed engagement pieces 141 projecting inward.
Further, the upper cylindrical portion 115 of the valve seat support member 110 has two pressing wall portions 114 that are located outward of the valve body side fixed engagement piece 141 and hang downward.

弁座支持部材１１０の上部筒部１１５の外周には、最外径が容器口部の注出孔１０２の内径より僅かに大きく圧入可能な弁座側リブ１１３が設けられており、弁体支持部材１２０の筒壁部１２６の外周には、最外径が容器口部の注出孔１０２の内径より僅かに大きく圧入可能な弁体側リブ１２３が設けられている。
また、弁体支持部材１２０の筒壁部１２６の下端部外周には、最外径が容器口部の注出孔１０２の内径より大きく嵌合不能な弁体側フランジ部１２４が設けられている。 A valve seat side rib 113 is provided on the outer periphery of the upper cylinder portion 115 of the valve seat support member 110 so that the outermost diameter can be press-fitted slightly larger than the inner diameter of the outlet hole 102 of the container mouth portion. On the outer periphery of the cylindrical wall portion 126 of the member 120, a valve body side rib 123 whose outermost diameter can be press-fitted slightly larger than the inner diameter of the outlet hole 102 of the container mouth portion is provided.
Further, on the outer periphery of the lower end portion of the cylindrical wall portion 126 of the valve body support member 120, a valve body side flange portion 124 whose outermost diameter is larger than the inner diameter of the outlet hole 102 of the container mouth portion and cannot be fitted is provided.

以上のように構成された本発明の１実施形態である逆止弁１００の作用および動作について、図６乃至図８に基づいて説明する。
逆止弁１００は、図１乃至図５に示す、弁体１２１と弁座１１２が軸方向に所定の間隔を有した状態で射出成形等で一体に製造され、使用する際には、図６に示すように、接続片１３０の下部接続片１３２を変形させて弁座支持部材１１０を弁体支持部材１２０側に押しこむことで、弁体側固定係合片１４１と弁座側固定係合片１４２が係合固定される。
そして、弾性保持アーム１２２は弾性変形し、弁体１２１が下方に押し込まれた状態で弁座１１２と接触して筒部１１１の下方が閉塞されている。
この時、押さえ壁部１１４が弁体側固定係合片１４１の外方への変形を規制し、係合が外れることを防止している。
この状態の逆止弁１００が容器口部に内装されることで、弾性保持アーム１２２による弁体１２１の上方への押圧力によって、上方からの所定の圧力が生じた場合のみ弁体１２１が下方に移動して筒部１１１の下方が開放する逆流防止機構が構成される。 The operation and operation of the check valve 100 according to one embodiment of the present invention configured as described above will be described with reference to FIGS.
The check valve 100 is integrally manufactured by injection molding or the like in a state where the valve body 121 and the valve seat 112 shown in FIGS. 1 to 5 have a predetermined interval in the axial direction. As shown in FIG. 4, the lower connection piece 132 of the connection piece 130 is deformed and the valve seat support member 110 is pushed toward the valve body support member 120, whereby the valve body side fixed engagement piece 141 and the valve seat side fixed engagement piece. 142 is engaged and fixed.
The elastic holding arm 122 is elastically deformed so that the valve body 121 is pressed downward and comes into contact with the valve seat 112 to close the lower portion of the cylindrical portion 111.
At this time, the pressing wall portion 114 restricts the outward deformation of the valve-body-side fixed engagement piece 141 to prevent the engagement from being released.
Since the check valve 100 in this state is built in the container mouth portion, the valve body 121 is lowered only when a predetermined pressure is generated from above by the pressing force of the elastic holding arm 122 on the valve body 121. A backflow prevention mechanism is configured in which the lower part of the cylindrical part 111 is opened.

図７は、逆止弁１００が、容器口部であるスパウト１０１の注出孔１０２に挿入された状態を示している。
逆止弁１００は、スパウト１０１の注出孔１０２の下方から、弁座支持部材１１０側を上にして、弁体側フランジ部１２４がスパウト１０１の注出孔１０２の下端部と当接する位置まで挿入される。
弁座支持部材１１０の上部筒部１１５の外周の弁座側リブ１１３および弁体支持部材１２０の筒壁部１２６の外周の弁体側リブ１２３は、最外径が容器口部の注出孔１０２の内径より僅かに大きいため、逆止弁１００を注出孔１０２に挿入した際には、弁座側リブ１１３、弁体側リブ１２３および注出孔１０２の内周面１０３が圧入嵌合され、確実に固定されるとともに、逆止弁１００の外周と注出孔１０２の内周面１０３との間に隙間が生じず、逆止弁１００の外周からの内容物の漏洩を防止できる。 FIG. 7 shows a state in which the check valve 100 is inserted into the spout hole 102 of the spout 101 that is the container mouth.
The check valve 100 is inserted from below the spout hole 102 of the spout 101 to a position where the valve seat side flange portion 124 contacts the lower end portion of the spout hole 102 of the spout 101 with the valve seat support member 110 side up. Is done.
The valve seat side rib 113 on the outer periphery of the upper cylindrical portion 115 of the valve seat support member 110 and the valve body side rib 123 on the outer periphery of the cylindrical wall portion 126 of the valve body support member 120 have an outer diameter of the outlet hole 102 of the container mouth. Therefore, when the check valve 100 is inserted into the dispensing hole 102, the valve seat side rib 113, the valve body side rib 123, and the inner peripheral surface 103 of the dispensing hole 102 are press-fitted and fitted. While being fixed reliably, a clearance gap does not arise between the outer periphery of the check valve 100 and the inner peripheral surface 103 of the extraction hole 102, and leakage of contents from the outer periphery of the check valve 100 can be prevented.

また、弁座支持部材１１０の上部筒部１１５の外周に弁座側リブ１１３を有することにより、逆止弁１００の挿入時に挿入方向に加える力によって、弁座支持部材１１０と弁体支持部材１２０が近づく方向の力が発生するため、図１乃至図５に示す製造時の状態のまま挿入するだけで、図６、図７に示す状態の使用時の逆止弁１００に組み立てることも可能である。
さらに、弁体側フランジ部１２４がスパウト１０１の注出孔１０２の下端部と当接する位置まで挿入されることで、注出孔１０２内での内装位置を規定することができる。
なお、逆止弁１１０をスパウト１０１の注出孔１０２の上部から挿入するようにしてもよく、その場合は、フランジ部を弁座支持部材１１０の上部筒部１１５の上端部に設ければよい。
また、本実施形態の逆止弁１００を、スパウト１０１の注出孔１０２の上部から上下逆に挿入し、逆流防止機構を逆に機能させてもよい。 Further, by having the valve seat side rib 113 on the outer periphery of the upper cylindrical portion 115 of the valve seat support member 110, the valve seat support member 110 and the valve body support member 120 are applied by the force applied in the insertion direction when the check valve 100 is inserted. Since the force in the direction of the movement is generated, it is possible to assemble the check valve 100 in use in the state shown in FIGS. 6 and 7 simply by inserting it in the state as shown in FIGS. is there.
Further, the valve body side flange portion 124 is inserted to a position where it comes into contact with the lower end portion of the spout hole 102 of the spout 101, whereby the interior position within the spout hole 102 can be defined.
The check valve 110 may be inserted from the upper part of the spout hole 102 of the spout 101, and in that case, a flange part may be provided at the upper end part of the upper cylinder part 115 of the valve seat support member 110. .
Further, the check valve 100 of the present embodiment may be inserted upside down from the top of the spout hole 102 of the spout 101, and the backflow prevention mechanism may function reversely.

以上のように構成された逆止弁１００を内装したスパウト１０１を容器口部とした容器は、例えば、呼気採取用のパウチ容器の場合、容器口部から呼気を吹き込むことで、図７の状態から図８に示すように、吹き込む呼気の圧力で弾性保持アーム１２２による弁体１２１の上方への押圧力に抗して弁体１２１が下方に移動して筒部１１１の下方が開放し、呼気が容器内に採取される。
呼気の吹き込みを行わない時は、弾性保持アーム１２２による弁体１２１の上方への押圧力によって弁体１２１が弁座１１２に押圧され、確実に筒部１１１が閉塞されるため、採取した呼気が容器内に保持されるとともに、呼気以外の外気が容器内に流入することはない。
また、逆止弁１００がスパウト１０１の注出孔１０２内に圧入嵌合されているため、外周から採取した呼気が漏洩したり、呼気以外の外気が侵入することはなく、本実施形態では、さらに、弁座側リブ１１３および弁体側リブ１２３を有していることでより密封性が高くなる。 The container having the spout 101 with the check valve 100 configured as described above and having the container mouth as the container mouth, for example, in the case of a pouch container for collecting breath, the state of FIG. As shown in FIG. 8, the valve body 121 moves downward against the pressing force of the elastic holding arm 122 on the upper side of the valve body 121 by the pressure of the exhaled air to blow, and the lower part of the cylindrical portion 111 is opened, Is collected in a container.
When exhalation is not performed, the valve body 121 is pressed against the valve seat 112 by the upward pressing force of the valve body 121 by the elastic holding arm 122, so that the cylinder portion 111 is reliably closed. While being held in the container, outside air other than exhalation does not flow into the container.
Further, since the check valve 100 is press-fitted into the spout hole 102 of the spout 101, exhaled air collected from the outer periphery does not leak or outside air other than exhaled does not enter. Furthermore, the sealing performance becomes higher by having the valve seat side rib 113 and the valve body side rib 123.

本発明の容器用逆止弁は、部品点数が少なく、製造や組立が容易であり、容器口部を専用の形状とする必要がなく汎用性が高いため、さまざまな用途の容器に使用でき、特に、簡単な構成でコストが低減されつつ、確実に逆流を防止すること可能であることから、呼気採取用のパウチ容器の用途に好適である。
また、本発明の容器用逆止弁は、容器口部以外の場所に内挿されてもよく、容器以外の用途で使用されてもよい。 The check valve for containers of the present invention has a small number of parts, is easy to manufacture and assemble, and does not need to have a dedicated shape for the container mouth, so it can be used for containers for various purposes. In particular, since the backflow can be reliably prevented while the cost is reduced with a simple configuration, it is suitable for the use of a pouch container for collecting exhaled breath.
Moreover, the check valve for containers of the present invention may be inserted in a place other than the container mouth, and may be used for applications other than containers.

１００ ・・・逆止弁
１０１ ・・・スパウト
１０２ ・・・注出孔
１０３ ・・・内周面（注出孔の）
１１０ ・・・弁座支持部材
１１１ ・・・筒部
１１２ ・・・弁座
１１３ ・・・弁座側リブ
１１４ ・・・押さえ壁部
１１５ ・・・上部筒部
１２０ ・・・弁体支持部材
１２１ ・・・弁体
１２２ ・・・弾性保持アーム
１２３ ・・・弁体側リブ
１２４ ・・・弁体側フランジ部
１２５ ・・・接続壁部
１２６ ・・・筒壁部
１３０ ・・・接続片
１３１ ・・・上部接続片
１３２ ・・・下部接続片
１４１ ・・・弁体側固定係合片
１４２ ・・・弁座側固定係合片 DESCRIPTION OF SYMBOLS 100 ... Check valve 101 ... Spout 102 ... Pouring hole 103 ... Inner peripheral surface (of pouring hole)
110 ... Valve seat support member 111 ... Tube part 112 ... Valve seat 113 ... Valve seat side rib 114 ... Pressing wall part 115 ... Upper cylinder part 120 ... Valve body support member 121 ... Valve body 122 ... Elastic holding arm 123 ... Valve body side rib 124 ... Valve body side flange 125 ... Connection wall 126 ... Cylinder wall 130 ... Connection piece 131 .... Upper connection piece 132 ... Lower connection piece 141 ... Valve element side fixed engagement piece 142 ... Valve seat side fixed engagement piece

Claims (7)

容器口部に内装される容器用逆止弁であって、
一端が弁座を構成する筒部を一体に設けた弁座支持部材と、弁体を弾性変位可能に一体に設けた弁体支持部材と、前記弁座支持部材および前記弁体支持部材と一体に形成された接続片とを有し、
前記弁体が弁座に弾性的に押圧された状態で前記弁座支持部材と弁体支持部材とが固定可能に形成され、
前記弁座支持部材と弁体支持部材には、それぞれ、前記弁体が弁座に弾性的に押圧された状態で前記弁座支持部材と弁体支持部材とを固定する固定係合片を有し、
前記固定係合片が、前記弁体および弁座とは異なる位置に設けられていることを特徴とする容器用逆止弁。 A check valve for a container installed in the container mouth,
A valve seat support member having one end integrally formed with a cylindrical portion constituting the valve seat, a valve body support member having a valve body integrally provided so as to be elastically displaceable, and the valve seat support member and the valve body support member A connecting piece formed on
The valve seat support member and the valve body support member are formed so as to be fixable in a state where the valve body is elastically pressed against the valve seat ,
Each of the valve seat support member and the valve body support member has a fixed engagement piece for fixing the valve seat support member and the valve body support member in a state where the valve body is elastically pressed against the valve seat. And
It said fixed engaging piece, a check valve for a container which is characterized that you have provided a position different from the valve body and valve seat. 前記接続片が、前記筒部の側方に複数設けられていることを特徴とする請求項１に記載の容器用逆止弁。   The container check valve according to claim 1, wherein a plurality of the connection pieces are provided on a side of the cylindrical portion. 前記接続片が、前記筒部の側方であって、かつ、軸対称位置に設けられ、
前記固定係合片が、前記接続片と同一の周方向位置に設けられていることを特徴とする請求項１または請求項２に記載の容器用逆止弁。 The connecting piece is provided on a side of the cylindrical portion and in an axially symmetric position;
The container check valve according to claim 1 or 2 , wherein the fixed engagement piece is provided at the same circumferential position as the connection piece. 前記弁座支持部材および弁体支持部材の少なくとも一方の外周には、容器口部の注出孔に圧入可能なリブが設けられていることを特徴とする請求項１乃至請求項３のいずれかに記載の容器用逆止弁。 At least one of the outer periphery of the valve seat support member and the valve body support member may be any of claims 1 to 3, characterized in that available press-fit rib is provided on the container mouth portion of Note Deana A check valve for a container according to 1. 前記弁座支持部材および弁体支持部材のいずれか一方の端部外周には、容器口部の注出孔に嵌合不能なフランジ部が設けられていることを特徴とする請求項１乃至請求項４のいずれかに記載の容器用逆止弁。 The one end portion outer periphery of the valve seat support member and the valve body support member, according to claim 1 or claims, characterized in that the fitting non flange portion is provided on the container mouth portion of Note Deana Item 5. A check valve for a container according to any one of Items 4 to 5 . 前記弁体は、前記弁体支持部材に一体に設けられた複数の弾性保持アームに一体に形成され、軸方向への弾性変位可能に形成されていることを特徴とする請求項１乃至請求項５のいずれかに記載の容器用逆止弁。 The valve body is formed integrally with a plurality of resilient retaining arms integrally provided on the valve body supporting member, according to claim 1 to claim, characterized in that it is elastically deformable formed in the axial direction The check valve for containers according to any one of 5 . 前記弁体は、前記弁座に向かって凸となるドーム形状に形成されていることを特徴とする請求項１乃至請求項６のいずれかに記載の容器用逆止弁。 The said valve body is formed in the dome shape which becomes convex toward the said valve seat, The check valve for containers in any one of the Claims 1 thru | or 6 characterized by the above-mentioned.
JP2013212194A 2013-10-09 2013-10-09 Check valve for containers Active JP6281896B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013212194A JP6281896B2 (en) 2013-10-09 2013-10-09 Check valve for containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013212194A JP6281896B2 (en) 2013-10-09 2013-10-09 Check valve for containers

Publications (2)

Publication Number Publication Date
JP2015075181A JP2015075181A (en) 2015-04-20
JP6281896B2 true JP6281896B2 (en) 2018-02-21

Family

ID=53000187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013212194A Active JP6281896B2 (en) 2013-10-09 2013-10-09 Check valve for containers

Country Status (1)

Country Link
JP (1) JP6281896B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6655886B2 (en) * 2015-05-25 2020-03-04 株式会社不二工機 Check valve
JP2022094483A (en) * 2020-12-15 2022-06-27 花王株式会社 Spout and bag container with spout

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1907872A1 (en) * 1968-02-19 1969-09-18 Macguire Cooper Richard Terenc Valve
US3589324A (en) * 1969-12-02 1971-06-29 Schuyler V V Hoffman Roll stabilizer for boats
JPS49144639U (en) * 1973-04-11 1974-12-13
JPS5547069A (en) * 1978-09-30 1980-04-02 Matsushita Electric Works Ltd Valve
JPS55104164U (en) * 1979-01-16 1980-07-21

Also Published As

Publication number Publication date
JP2015075181A (en) 2015-04-20

Similar Documents

Publication Publication Date Title
US10308496B2 (en) Liquid dispensing tap, particularly for dispensing liquids with higher densities from rigid vessels
CA2646575C (en) Liquid dispensing tap, in particular for liquids with higher density
AU2013318845B2 (en) Container body and storage container having the same
CN106794757B (en) The mounting structure of clack box
RU2018114870A (en) PUMP WITH COMBINED SPRING AND VALVE DEVICE
JP6281896B2 (en) Check valve for containers
JP5068894B1 (en) Grinder container
CN106235827A (en) Container locking device
JP2008223927A (en) Check valve
JP2012131553A5 (en)
JP5639339B2 (en) Manufacturing method of check valve
JP5820690B2 (en) Discharge pump
JP6716341B2 (en) Double container
CN107108077B (en) Accommodate the container of paste
KR200459770Y1 (en) A vessel cap
JP2021178651A (en) Connection system
JP5836065B2 (en) Discharge pump
JP5749900B2 (en) Tube container fitted with an internal stopper with valve
JP5771460B2 (en) Spray container
JP7386530B2 (en) connection system
JP5855356B2 (en) Thin container
US20150284148A1 (en) Stop & go water bottle cap
TWI642382B (en) Nozzle fixing unit
JP6236283B2 (en) Brushed container
RU2401244C2 (en) Tap for dispensing of liquid, in particular for dispensing of high and medium density liquids from hard containers

Legal Events

Date Code Title Description
A625 Written request for application examination (by other person)

Free format text: JAPANESE INTERMEDIATE CODE: A625

Effective date: 20160912

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20170622

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170628

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170821

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20180117

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180117

R150 Certificate of patent or registration of utility model

Ref document number: 6281896

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150