JP2022173852A - Coupling system and check valve - Google Patents

Abstract

To provide a coupling system that can reliably cause a fluid to flow between a flow passage of a male member and the outside of a female member, and can reduce or prevent crushing or damage of a receiving part caused by the male member.SOLUTION: A coupling system comprises a male member 1 having a flow passage 10 through which a fluid flows, a female member 2 having a guidance passage 20 into which the male member 1 is inserted, and a check valve 3 provided in an opening portion 20b of the guidance passage 20 of the female member 2. The check valve 3 comprises a plug part 31 that closes or opens the opening portion 20b of the female member 2, a membranous elastic body 32 that is integrally provided at the periphery of the plug part and has passage holes 32a through which the fluid passes, and a mounting part 33 that is integrally provided at the periphery of the membranous elastic body 32 and is mounted to the female member 2. The plug part 31 is integrally provided with a receiving part 34 for receiving the male member 1, and the receiving part 34 is formed with a plurality of linear flow portions 34a for the fluid to flow.SELECTED DRAWING: Figure 3

Description

Translated fromJapanese

本発明は、包装容器等に流体を充填または吐出する際に用いられる連結システムおよび逆止弁に関するものである。 TECHNICAL FIELD The present invention relates to a connection system and a check valve used when filling or discharging a fluid into a packaging container or the like.

従来、インクなどの液体、複写機のトナーなどの粉体、あるいは何らかの気体などの流体を充填または吐出するための逆止弁の機能を有する様々な連結システムが知られている。このうち、本出願人は、２ピース構成にすることにより着脱が容易でしかも比較的安価なものにできるとともに、流体の漏れが少ない連結システムを提案している（特許文献１参照）。 Various coupling systems are known in the prior art that function as check valves for filling or dispensing fluids such as liquids such as ink, powders such as copier toner, or any gas. Among these, the applicant of the present application has proposed a connection system that has a two-piece structure, which is easy to attach and detach, can be made relatively inexpensive, and has less fluid leakage (see Patent Document 1).

具体的には、この連結システムは、流体が流れる流通路を内部に有する雄部材と、雄部材が挿入される導通路を内部に有する雌部材と、雌部材の前記導通路の開口部に設けられる逆止弁とを備える。そして、この逆止弁は、雌部材の開口部を閉鎖する栓部と、該栓部の周囲に一体的に設けられ、流体が通過する通過孔を有する膜状弾性体と、膜状弾性体の周囲に一体的に設けられ、前記雌部材に取り付けられる取付部とを備え、該栓部には雄部材の先端部を受けるための受け部としての平面視十字状の凸部が設けられている（特許文献１の図３参照）。 Specifically, this connection system includes a male member having a flow passage for fluid flow therein, a female member having a conducting passage into which the male member is inserted, and an opening of the conducting passage provided in the female member. and a non-return valve. The check valve comprises a plug for closing the opening of the female member, a film-like elastic body provided integrally around the plug and having a passage hole through which the fluid passes, and a film-like elastic body. and a mounting portion that is integrally provided on the periphery of the female member and attached to the female member, and the plug portion is provided with a cross-shaped convex portion as a receiving portion for receiving the distal end portion of the male member. (See FIG. 3 of Patent Document 1).

これによれば、雄部材が雌部材に挿入される際の逆止弁の開放時において、雄部材により受け部が雌部材の開口部から押し出されることにより栓部が雌部材の開口部を開放することによって、雄部材の流通路と、逆止弁の膜状弾性体と雌部材の間の空間とが栓部の十字状凸部の間の扇状空間を介して連通状態になって、流体が逆止弁を介して流通することができる。このため、本連結システムを包装容器に適用した場合、流体を逆止弁を介して包装容器に充填したり、あるいは包装容器に充填された流体を逆止弁を介して外部に吐出することができる。 According to this, when the check valve is opened when the male member is inserted into the female member, the receiving portion is pushed out from the opening of the female member by the male member, so that the stopper opens the opening of the female member. As a result, the flow path of the male member and the space between the membrane-like elastic body of the check valve and the female member are brought into communication with each other through the fan-shaped space between the cross-shaped projections of the plug portion, thereby allowing the fluid to flow. can flow through the check valve. Therefore, when this connection system is applied to a packaging container, the fluid can be filled into the packaging container through the check valve, or the fluid filled in the packaging container can be discharged to the outside through the check valve. can.

特開２００３－１９４２４５号公報JP-A-2003-194245

しかしながら、連結システムにおいて雄部材により受け部の十字状凸部を押すことを何度も繰り返していると、該十字状凸部が次第に軸方向に潰れた状態となっていき、最終的には雄部材の先端部と栓部との間の隙間がなくなったり、あるいは極めて狭くなることによって、流体が受け部の十字状凸部の間の扇状空間を流通しにくくなり、結果として、包装容器における流体の充填不良や吐出不良を生じるという問題があった。 However, if the cross-shaped projection of the receiving portion is repeatedly pushed by the male member in the connection system, the cross-shaped projection gradually collapses in the axial direction, and finally the male member is pushed. If the gap between the tip portion of the member and the plug portion disappears or becomes extremely narrow, it becomes difficult for the fluid to flow through the fan-shaped space between the cross-shaped projections of the receiving portion. However, there is a problem of insufficient filling and ejection of the ink.

なお、この問題に対しては、従来、雄部材の先端部に流体が通過し得る切り欠き状の隙間を形成する対策を施してきたが、切り欠き状の隙間を形成した雄部材の先端部がかえって鋭い形状となって、逆止弁の栓部や受け部に損傷を与えるという新たな問題が生じていた。 In order to solve this problem, conventionally, a notch-shaped gap through which the fluid can pass has been formed at the tip of the male member. On the contrary, it has a sharp shape, causing a new problem of damaging the stopper and receiving portion of the check valve.

本発明は、流体が雄部材の流通路と雌部材の外部との間を確実に流通することができるとともに、雄部材による受け部の潰れや損傷を軽減または防止することができ、ひいては包装容器等における流体の充填や吐出を安定的に繰り返して行うことが可能な連結システムを提供することを目的とする。 INDUSTRIAL APPLICABILITY According to the present invention, the fluid can reliably flow between the flow path of the male member and the outside of the female member, and the crushing or damage of the receiving portion by the male member can be reduced or prevented. It is an object of the present invention to provide a connection system capable of stably and repeatedly filling and discharging a fluid in, for example, a device.

本発明は、上記目的を達成するために、流体が流れる流通路を内部に有する雄部材と、前記雄部材が挿入される導通路を内部に有する雌部材と、前記雌部材の前記導通路の開口部に設けられる逆止弁とを備える連結システムであって、前記逆止弁は、前記雌部材の開口部を閉鎖または開放する栓部と、前記栓部の周囲に一体的に設けられ、流体が通過する通過孔を有する膜状弾性体と、前記膜状弾性体の周囲に一体的に設けられ、前記雌部材に取り付けられる取付部とを備え、前記栓部は、前記雄部材の先端部を受けるための受け部が一体的に設けられ、該受け部に流体が流通するための一ないし複数の流通部が中央部から周端部に延びる態様で形成されており、前記雄部材が前記雌部材に挿入される前の前記逆止弁の閉鎖時において、前記膜状弾性体が有する弾性力により前記栓部が前記雌部材の前記開口部を閉鎖する一方、前記雄部材が前記雌部材に挿入される際の前記逆止弁の開放時において、前記雄部材により前記受け部が押されることにより、前記栓部が前記雌部材の前記開口部を開放するとともに、前記膜状弾性体が前記雌部材との間において流体が流入するための所定の大きさの流入空間を形成することを特徴とする。 In order to achieve the above object, the present invention provides a male member having therein a flow passage through which a fluid flows, a female member having therein a conducting passage into which the male member is inserted, and the conducting passage of the female member. A connection system comprising a check valve provided in an opening, wherein the check valve is integrally provided around a plug for closing or opening the opening of the female member and the plug, an elastic membrane body having a passage hole through which a fluid passes; and an attachment section integrally provided around the elastic membrane body and attached to the female member, wherein the plug section is a distal end of the male member. A receiving portion for receiving a portion is integrally provided, and one or a plurality of flow-through portions for circulating fluid in the receiving portion are formed in a manner extending from a central portion to a peripheral end portion, and the male member When the check valve is closed before it is inserted into the female member, the plug closes the opening of the female member due to the elastic force of the membrane-like elastic body, while the male member causes the female member to close. When the check valve is opened when it is inserted into the member, the receiving portion is pushed by the male member, so that the stopper opens the opening of the female member, and the membrane-like elastic body is opened. and the female member form an inflow space of a predetermined size for the inflow of fluid.

これによれば、逆止弁の開放時において、雄部材の流通路と、逆止弁と雌部材の間の流入空間とが逆止弁の受け部の流通部を介して連通するとともに、逆止弁と雌部材の間の流入空間と、雌部材の外部とが逆止弁の膜状弾性体の通過孔を介して連通するため、流体は雄部材の流通路と雌部材の外部との間を逆止弁を介して確実に流通することができる。 According to this, when the check valve is opened, the flow passage of the male member and the inflow space between the check valve and the female member communicate with each other through the flow portion of the receiving portion of the check valve. Since the inflow space between the stop valve and the female member communicates with the outside of the female member through the passage hole of the membrane-like elastic body of the check valve, the fluid flows between the flow path of the male member and the outside of the female member. can reliably flow between them via the check valve.

また、逆止弁の受け部は、従来の逆止弁の受け部に比べて、雄部材の先端部との接触面積が大きくなって、雄部材の先端部を全体的に広く受ける構造であるため、雄部材による受け部の潰れや損傷を軽減または防止することができる。 In addition, the receiving portion of the check valve has a larger contact area with the tip of the male member than the receiving portion of the conventional check valve, and has a structure that widely receives the tip of the male member as a whole. Therefore, it is possible to reduce or prevent the receiving portion from being crushed or damaged by the male member.

また、前記流通部は、前記受け部の上面の中央部から周端部に延びる溝状に形成されているのが好ましい。これによれば、逆止弁の開放時において、流体が、雄部材の流通路と流入空間の間を逆止弁の受け部の流通部を介して、スムーズに流通することができる。 Moreover, it is preferable that the circulation portion is formed in a groove shape extending from the center portion to the peripheral end portion of the upper surface of the receiving portion. According to this, when the check valve is opened, the fluid can smoothly flow between the flow passage of the male member and the inflow space through the flow portion of the receiving portion of the check valve.

また、前記流通部は、前記受け部の中央部から周端部に延びる放射状に形成されているのが好ましい。これによれば、逆止弁の開放時において、流体が、雄部材の流通路と流入空間の間を逆止弁の受け部の流通部を介して、よりスムーズに流通することができる。 Moreover, it is preferable that the circulation portion is formed radially extending from the central portion of the receiving portion to the peripheral end portion thereof. According to this, when the check valve is opened, the fluid can more smoothly flow between the flow passage of the male member and the inflow space through the flow portion of the receiving portion of the check valve.

また、前記流通部は、前記受け部の中央部において互いに繋がった状態に形成されているのが好ましい。これによれば、逆止弁の開放時において、流体が、雄部材の流通路と流入空間の間を逆止弁の受け部の流通部を介して、より一層スムーズに流通することができる。 Moreover, it is preferable that the circulation portions are formed in a state of being connected to each other at the central portion of the receiving portion. According to this, when the check valve is opened, the fluid can more smoothly flow between the flow passage of the male member and the inflow space through the flow portion of the receiving portion of the check valve.

また、前記流通部は、前記受け部の中央部から周端部に延びる線状に形成されているのが好ましい。これによれば、逆止弁の開放時において、流体が、雄部材の流通路と流入空間の間を逆止弁の受け部の流通部を介して、より一層スムーズに流通することができる。 Moreover, it is preferable that the circulation portion is formed in a linear shape extending from the central portion of the receiving portion to the peripheral end portion thereof. According to this, when the check valve is opened, the fluid can more smoothly flow between the flow passage of the male member and the inflow space through the flow portion of the receiving portion of the check valve.

前記膜状弾性体は、前記流通部の延長方向の位置に前記通過孔が形成されているのが好ましい。これによれば、逆止弁の開放時において、流体が、雄部材の流通路と流入空間の間を逆止弁の受け部の流通部を介して、より一層スムーズに流通することができる。 It is preferable that the film-like elastic body is formed with the passage hole at a position in the extending direction of the circulation portion. According to this, when the check valve is opened, the fluid can more smoothly flow between the flow passage of the male member and the inflow space through the flow portion of the receiving portion of the check valve.

また、本発明は、上記の連結システムに用いられる逆止弁であって、前記逆止弁は、前記雌部材の開口部を閉鎖する栓部と、前記栓部の周囲に一体的に設けられ、流体が通過する通過孔を有する膜状弾性体と、前記膜状弾性体の周囲に一体的に設けられ、前記雌部材に取り付けられる取付部とを備え、前記栓部は、前記雄部材の先端部を受けるための受け部が一体的に設けられ、該受け部に流体が流通するための一ないし複数の流通部が中央部から周端部に延びる態様で形成されていることを特徴とする。 The present invention also provides a check valve for use in the connection system described above, wherein the check valve includes a plug portion that closes the opening of the female member, and is integrally provided around the plug portion. a film-like elastic body having a passage hole through which a fluid passes; and an attachment portion integrally provided around the film-like elastic body and attached to the female member, wherein the plug portion is attached to the male member. A receiving portion for receiving the tip end portion is integrally provided, and one or a plurality of circulating portions for circulating the fluid to the receiving portion are formed so as to extend from the central portion to the peripheral end portion. do.

本発明によれば、逆止弁の開放時において、雄部材の流通路と、逆止弁と雌部材の間の流入空間とが逆止弁の受け部の流通部を介して連通するとともに、逆止弁と雌部材の間の流入空間と、雌部材の外部とが逆止弁の膜状弾性体の通過孔を介して連通するため、流体は雄部材の流通路と雌部材の外部との間を逆止弁を介して確実に流通することができる。 According to the present invention, when the check valve is opened, the flow passage of the male member and the inflow space between the check valve and the female member communicate with each other through the flow portion of the receiving portion of the check valve, Since the inflow space between the check valve and the female member and the outside of the female member communicate with each other through the passage hole of the membrane-like elastic body of the check valve, the fluid flows between the flow path of the male member and the outside of the female member. can be reliably circulated through the check valve.

また、逆止弁の受け部は、従来の逆止弁の受け部に比べて、雄部材の先端部との接触面積が大きくなって、雄部材の先端部を全体的に広く受ける構造であるため、雄部材による受け部の潰れや損傷を軽減または防止することができる。 In addition, the receiving portion of the check valve has a larger contact area with the tip of the male member than the receiving portion of the conventional check valve, and has a structure that widely receives the tip of the male member as a whole. Therefore, it is possible to reduce or prevent the receiving portion from being crushed or damaged by the male member.

よって、例えば本連結システムを包装容器に適用した場合、本連結システムにより包装容器における流体の充填や吐出を安定的に繰り返して行うことが可能となる。 Therefore, for example, when the present connection system is applied to a packaging container, the present connection system makes it possible to stably and repeatedly fill and discharge the fluid in the packaging container.

本発明の実施形態に係る連結システムの雌部材と逆止弁の斜視図である。Fig. 2 is a perspective view of a female member and a check valve of a connection system according to an embodiment of the invention;図１の連結システムにおける雄部材の挿入前の状態を示す断面斜視図である。2 is a cross-sectional perspective view of the coupling system of FIG. 1 before insertion of the male member; FIG.図１の連結システムにおける雄部材の挿入後の状態を示す断面斜視図である。2 is a cross-sectional perspective view of the coupling system of FIG. 1 after insertion of the male member; FIG.逆止弁の（ａ）底側斜視図、（ｂ）上側斜視図、（ｃ）上側平面図、（ｄ）断面図である。They are (a) a bottom side perspective view, (b) an upper side perspective view, (c) an upper side plan view, and (d) a sectional view of a check valve.連結システムにおける雄部材の挿入過程の状態を示す断面正面図である。FIG. 10 is a cross-sectional front view showing the state of the insertion process of the male member in the connection system;連結システムにおける雄部材の挿入後の状態を示す拡大断面図である。FIG. 10 is an enlarged cross-sectional view showing a state after insertion of the male member in the connection system;本発明の他の実施形態に係る連結システムにおける逆止弁の変形例を示す上側平面図である。FIG. 11 is a top plan view showing a modified check valve in a connection system according to another embodiment of the present invention;

次に、本発明に係る連結システムを包装容器に用いた一の実施形態について図１～図６を参照しつつ説明する。 Next, an embodiment using a connection system according to the present invention for a packaging container will be described with reference to FIGS. 1 to 6. FIG.

本連結システムは、図１～図３に示すように、ノズル状の雄部材１と、雄部材１が挿入される導通路２０を有する雌部材２と、雌部材２の導通路２０の開口部２０ｂに設けられる弾性力を有する逆止弁３とを備える。 As shown in FIGS. 1 to 3, this connection system includes a nozzle-shaped male member 1, afemale member 2 having aconduit 20 into which themale member 1 is inserted, and an opening of theconduit 20 of thefemale member 2. 20b and acheck valve 3 having elasticity.

前記雄部材１は、図３に示すように、流体が軸方向に流通して先端部から流出する流通路１０を有し、円筒状の径大の第１の雄本体部１１と、円筒状の径小の第２の雄本体部１２と、第１の雄本体部１１と第２の雄本体部１２の間に設けられたテーパ状のショルダー部１３とを備える。 As shown in FIG. 3, themale member 1 has aflow passage 10 through which the fluid flows in the axial direction and flows out from the distal end. and atapered shoulder portion 13 provided between the firstmale body portion 11 and the secondmale body portion 12 .

前記雌部材２は、図１および図２に示すように、内部を軸方向に貫通する導通路２０を有し、軸方向に延びる雌本体部２１と、雌本体部２１の下方に設けられた環状の座部２２と、雌本体部２１と座部２２の間に設けられたショルダー部２３とを備える。この雌部材２は、後述するように包装容器の合成樹脂製のシート材に溶着される。 As shown in FIGS. 1 and 2, thefemale member 2 includes afemale body portion 21 extending in the axial direction, and afemale body portion 21 provided below thefemale body portion 21. It has anannular seat portion 22 and ashoulder portion 23 provided between thefemale body portion 21 and theseat portion 22 . Thefemale member 2 is welded to the synthetic resin sheet material of the packaging container as will be described later.

前記導通路２０は、雌部材２の上方端に設けられた挿入口２０ａから、雌部材２の下方端に設けられた開口部２０ｂまで雌部材２の内部を軸方向に貫通するとともに、雌本体部２１、ショルダー部２３、座部２２の内径に応じて次第に径小となるように形成されており、雄部材１が挿入された際に雄部材１（主に第１の雄本体部１１およびショルダー部１３）の外面に当接するものとなされている。 The conductingpath 20 axially penetrates the interior of thefemale member 2 from aninsertion port 20a provided at the upper end of thefemale member 2 to an opening 20b provided at the lower end of thefemale member 2, and extends through the female body. The inner diameters of theportion 21, theshoulder portion 23, and theseat portion 22 are formed so as to gradually decrease in diameter. It abuts on the outer surface of the shoulder portion 13).

前記雌本体部２１は、下部に平面視ひし形状の溶着部２１ａが設けられており、該溶着部２１ａの両側面において包装容器の合成樹脂製のシート材が溶着されることにより、雌本体部２１の下方が包装袋の内部となされている。また、雌本体部２１は、基端部に２個の環状のリブ２１ｂが形成されており、流体の充填時においてリブ２１ｂの間に治具が掛けられるようになっている。 The femalemain body portion 21 is provided with a diamond-shapedwelding portion 21a in a plan view at its lower portion, and the synthetic resin sheet material of the packaging container is welded to both side surfaces of thewelding portion 21a to form the female main body portion. The lower part of 21 is the inside of the packaging bag. The femalemain body 21 has twoannular ribs 21b formed at its base end, and a jig is hung between theribs 21b when filled with fluid.

前記座部２２は、雌部材２の開口部２０ｂの周囲に設けられた環状の壁部材であって、基端部に径方向内側に窪んだ凹部２２ａが形成されている。この凹部２２ａは、後述するように逆止弁３の取付部３３が取り付けられる。 Theseat portion 22 is an annular wall member provided around theopening portion 20b of thefemale member 2, and has aconcave portion 22a that is recessed radially inward at the base end thereof. Anattachment portion 33 of thecheck valve 3 is attached to therecess 22a as will be described later.

前記ショルダー部２３は、全体としてテーパ状に形成されており、前記雄部材１が雌部材２の導通路２０に挿入された際、雄部材１のショルダー部１３が当接することにより雄部材１の挿入時のストッパーとして機能する。 Theshoulder portion 23 is formed in a tapered shape as a whole. Acts as a stopper during insertion.

前記逆止弁３は、ゴムやエラストマーなどの弾性体から構成されており、図４に示すように、雌部材２の開口部２０ｂを閉鎖または開放する栓部３１と、栓部３１の周囲に一体的に設けられた膜状弾性体３２と、膜状弾性体３２の周囲に一体的に設けられた取付部３３とを備える。 Thecheck valve 3 is made of an elastic material such as rubber or elastomer. As shown in FIG. It includes an integrally providedelastic membrane 32 and a mountingportion 33 integrally provided around theelastic membrane 32 .

前記栓部３１は、逆止弁３の内側に膨らんだ半球面状に形成された弾性体であり、直径が雌部材２の開口部２０ｂの内径よりもやや大きくなるように形成されている。これにより、逆止弁３の閉鎖時において、図２に示すように、栓部３１が雌部材２の開口部２０ｂに嵌り込んだ状態となって、雌部材２の開口部２０ｂを完全に閉鎖する一方、逆止弁３の開放時において、図３に示すように、栓部３１が雄部材１により押し出された状態となって、雌部材２の開口部２０ｂを開放する。 Theplug portion 31 is a hemispherical elastic body that swells toward the inside of thecheck valve 3 and has a diameter slightly larger than the inner diameter of theopening 20 b of thefemale member 2 . As a result, when thecheck valve 3 is closed, theplug portion 31 is fitted into theopening 20b of thefemale member 2 to completely close theopening 20b of thefemale member 2, as shown in FIG. On the other hand, when thecheck valve 3 is opened, theplug portion 31 is pushed out by themale member 1 to open theopening 20b of thefemale member 2, as shown in FIG.

また、前記栓部３１は、頂上部において受け部３４が段階的に設けられている。この受け部３４は、雌部材２の開口部２０ｂの内径よりもやや小さい直径の平面視円形台であって、流体が流通するための４本の線状の流通部３４ａが形成されている。本実施形態では、この流通部３４ａは、受け部３４の上面の中央部から周端部にかけて放射状に延びる溝状に形成されている。 Further, theplug portion 31 is provided with receivingportions 34 stepwise at the top portion thereof. The receivingportion 34 is a circular base having a diameter slightly smaller than the inner diameter of theopening 20b of thefemale member 2, and is formed with fourlinear flow portions 34a through which fluid flows. In this embodiment, thecirculation portion 34a is formed in the shape of a groove radially extending from the central portion of the upper surface of the receivingportion 34 to the peripheral end portion thereof.

これにより、逆止弁３の閉鎖時において、図２に示すように、受け部３４が雌部材２の開口部２０ｂの内部に配置された状態となる一方、逆止弁３の開放時において、図３に示すように、受け部３４が雌部材２の開口部２０ｂの下方に配置される。このため、逆止弁３が開放時において、雄部材１の流通路１０と、膜状弾性体３２と雌部材２の座部２２の間の所定の流入空間３５とが受け部３４の流通部３４ａを介して連通するため、流体は雄部材１の流通路１０と流入空間３５の間を流通することができる。 As a result, when thecheck valve 3 is closed, the receivingportion 34 is arranged inside theopening 20b of thefemale member 2, as shown in FIG. As shown in FIG. 3, the receivingportion 34 is arranged below theopening 20b of thefemale member 2. As shown in FIG. Therefore, when thecheck valve 3 is open, theflow path 10 of themale member 1 and thepredetermined inflow space 35 between theelastic membrane 32 and theseat portion 22 of thefemale member 2 are the flow portions of the receivingportion 34. Fluid can flow between theflow passage 10 of themale member 1 and theinflow space 35 because of the communication via 34a.

また、逆止弁３の受け部３４は、従来の逆止弁３の受け部３４に比べて、雄部材１の先端部との接触面積が大きくなって、雄部材１の先端部を全体的に広く受ける構造であるため、連結システムを繰り返して使用した場合であっても、雄部材１により軸方向に潰れることを軽減または防止することができる。 Further, the receivingportion 34 of thecheck valve 3 has a larger contact area with the tip portion of themale member 1 than the receivingportion 34 of theconventional check valve 3, so that the tip portion of themale member 1 can be Because of the structure, it is possible to reduce or prevent axial crushing by themale member 1 even when the coupling system is used repeatedly.

なお、本実施形態では、前記各流通部３４ａは、栓部３１の上面に達する深さに形成されているため、流体が流通部３４ａをより一層スムーズに流通することができる。 In this embodiment, each of thecirculation portions 34a is formed to have a depth reaching the upper surface of theplug portion 31, so that the fluid can flow through thecirculation portions 34a more smoothly.

前記膜状弾性体３２は、栓部３１の周囲に一体的に設けられた薄い環状の弾性体であって、流体が通過するための４個の通過孔３２ａが等間隔に形成されている。この膜状弾性体３２は、逆止弁３が雌部材２の座部２２に取り付けられた際、自己の有する弾性力に抗してやや伸長状態に変形している。これにより、逆止弁３の閉鎖時において、図２に示すように、膜状弾性体３２と雌部材２の座部２２が接近した状態となる一方、逆止弁３の開放時において、図３に示すように、栓部３１が雄部材１により押し出されるのに伴って下方にさらに伸長状態に変形することにより膜状弾性体３２と雌部材２の座部２２が離間した状態となり、膜状弾性体３２と雌部材２の座部２２の間に流体が流入するための所定の大きさの流入空間３５が形成される。 The membrane-likeelastic body 32 is a thin ring-shaped elastic body integrally provided around theplug portion 31, and is formed with fourpassage holes 32a for the passage of fluid at regular intervals. When thecheck valve 3 is attached to theseat portion 22 of thefemale member 2, the film-likeelastic body 32 is slightly stretched against its own elastic force. As a result, when thecheck valve 3 is closed, as shown in FIG. 3, as theplug portion 31 is pushed out by themale member 1, it is further deformed downward into a stretched state, so that the membrane-likeelastic body 32 and theseat portion 22 of thefemale member 2 are separated from each other. Aninflow space 35 of a predetermined size is formed between theelastic body 32 and theseat portion 22 of thefemale member 2 for inflow of fluid.

なお、膜状弾性体３２の厚みは、流体や粉体の性状や圧力などに応じて適宜設計される。また、通過孔３２ａの形状や大きさも設計事項であるが、通過孔３２ａを大きくすると膜状弾性体３２が変形した際に生じる応力も小さくなる。 The thickness of the film-likeelastic body 32 is appropriately designed according to the properties and pressure of the fluid and powder. The shape and size of thepassage hole 32a is also a matter of design, but if thepassage hole 32a is made larger, the stress generated when theelastic membrane 32 is deformed becomes smaller.

前記取付部３３は、逆止弁３を雌部材２の座部２２に取り付けるための弾性体であって、膜状弾性体３２の周囲から上方に立設する円筒状の側面部３３ａと、側面部３３ａの上端部から径方向内側に屈曲する平面視環状の引掛部３３ｂとを備える。 Theattachment portion 33 is an elastic body for attaching thecheck valve 3 to theseat portion 22 of thefemale member 2. A hookingportion 33b, which is annular in plan view and bent radially inward from the upper end portion of theportion 33a, is provided.

また、取付部３３は、側面部３３ａの内径が雌部材２の座部２２の外径よりもやや小さく形成され、かつ側面部３３ａの内面高さが雌部材２の座部２２の先端部から凹部２２ａの下面までの高さよりもやや低くなるように形成されている。これにより、逆止弁３が雌部材２の座部２２に取り付けられた際、引掛部３３ｂが雌部材２の座部２２の凹部２２ａに嵌りこむ態様で掛止されるとともに、側面部３３ａが弾性力に抗して伸長状態に変形しながら座部２２の外周面に密着状態に当接するため、逆止弁３を雌部材２の座部２２に抱きかかえる態様で確実に取り付けることができる。 The mountingportion 33 is formed such that the inner diameter of theside surface portion 33a is slightly smaller than the outer diameter of theseat portion 22 of thefemale member 2, and the inner surface height of theside surface portion 33a is greater than the tip of theseat portion 22 of thefemale member 2. It is formed so as to be slightly lower than the height to the lower surface of therecess 22a. As a result, when thecheck valve 3 is attached to theseat portion 22 of thefemale member 2, thehook portion 33b is engaged with theconcave portion 22a of theseat portion 22 of thefemale member 2, and theside portion 33a is Since thecheck valve 3 contacts the outer peripheral surface of theseat portion 22 in close contact while deforming into an elongated state against the elastic force, thecheck valve 3 can be securely attached to theseat portion 22 of thefemale member 2 in a hugging manner.

次に、本連結システムにおける流体の充填時および吐出時の動作について、図５および図６を参照しつつ説明する。 Next, the operation of this connection system during filling and discharging of fluid will be described with reference to FIGS. 5 and 6. FIG.

流体の充填時または吐出時において、図５に示すように、雄部材１を雌部材２の導通路２０の挿入口２０ａから開口部２０ｂまで挿入していくと、雄部材１の先端部が逆止弁３の受け部３４に到達する。そして、雄部材１の先端部が逆止弁３の受け部３４に当接した状態で雄部材１をさらに挿入していくと、逆止弁３の栓部３１が雌部材２の開口部２０ｂを開放する。 When the fluid is filled or discharged, as shown in FIG. 5, when themale member 1 is inserted from theinsertion port 20a of theconduction path 20 of thefemale member 2 to theopening 20b, the distal end of themale member 1 is reversed. It reaches the receivingportion 34 of thestop valve 3 . When themale member 1 is further inserted while the tip of themale member 1 is in contact with the receivingportion 34 of thecheck valve 3, theplug portion 31 of thecheck valve 3 is pushed into theopening portion 20b of thefemale member 2. open the

このとき、図５（ｂ）に示すように、逆止弁３の膜状弾性体３２が下方に伸長状態に変形することにより、膜状弾性体３２と雌部材２の座部２２が離間した状態となり、膜状弾性体３２と雌部材２の座部２２の間に流体が流入するための所定の大きさの流入空間３５が形成される。 At this time, as shown in FIG. 5(b), the membraneelastic body 32 of thecheck valve 3 is deformed downward into a stretched state, so that the membraneelastic body 32 and theseat portion 22 of thefemale member 2 are separated from each other. In this state, aninflow space 35 of a predetermined size is formed between the membrane-likeelastic body 32 and theseat portion 22 of thefemale member 2 for the fluid to flow in. As shown in FIG.

また、同じく図５（ｂ）に示すように、逆止弁３の栓部３１が雌部材２の開口部２０ｂを開放することにより、受け部３４が雌部材２の開口部２０ｂの下方で露出した状態となり、雄部材１の流通路１０と流入空間３５が受け部３４の流通部３４ａを介して連通するとともに、流入空間３５と雌部材２の外部（包装容器の内部）が膜状弾性体３２の通過孔３２ａを介して連通する。 Also, as shown in FIG. 5B, thestopper 31 of thecheck valve 3 opens theopening 20b of thefemale member 2, thereby exposing the receivingportion 34 below theopening 20b of thefemale member 2. In this state, theflow passage 10 of themale member 1 and theinflow space 35 communicate with each other through theflow passage portion 34a of the receivingportion 34, and theflow space 35 and the outside of the female member 2 (the inside of the packaging container) are made of a film-like elastic body. 32 throughholes 32a.

而して、雌部材２が設けられた包装容器に流体を充填する際、逆止弁３の開放時において、図６（下方に向いた矢印）に示すように、雄部材１の流通路１０を流れてきた流体が逆止弁３の受け部３４の流通部３４ａを流通して、逆止弁３の膜状弾性体３２と雌部材２の間の流入空間３５に流入したあと、逆止弁３の膜状弾性体３２の通過孔３２ａから包装容器の内部に流出するため、流体を包装容器の内部に確実に充填することができる。 When the packaging container provided with thefemale member 2 is filled with the fluid, when thecheck valve 3 is opened, theflow path 10 of themale member 1 is shown in FIG. 6 (downward arrow). The fluid flowing through thecheck valve 3 flows through theflow portion 34a of the receivingportion 34 of thecheck valve 3 and flows into theinflow space 35 between the membrane-likeelastic body 32 of thecheck valve 3 and thefemale member 2. Since the fluid flows out into the interior of the packaging container from thepassage hole 32a of the membrane-likeelastic body 32 of thevalve 3, the interior of the packaging container can be reliably filled with the fluid.

また、雌部材２が設けられた収容容器から流体を吐出する際、逆止弁３の開放時において、図６（上方に向いた矢印）に示すように、包装容器の内部の流体が逆止弁３の膜状弾性体３２の通過孔３２ａから逆止弁３の膜状弾性体３２と雌部材２の間の流入空間３５に流入したあと、逆止弁３の受け部３４の流通部３４ａを流通して、雄部材１の流通路１０に流出するため、包装容器内の流体を外部に吐出することができる。 Further, when the fluid is discharged from the container provided with thefemale member 2, when thecheck valve 3 is opened, the fluid inside the packaging container flows in a non-return manner as shown in FIG. 6 (upward arrow). After flowing into theinflow space 35 between the membraneelastic body 32 of thecheck valve 3 and thefemale member 2 from thepassage hole 32a of the membraneelastic body 32 of thevalve 3, theflow part 34a of the receivingpart 34 of thecheck valve 3 , and flows out to theflow path 10 of themale member 1, the fluid in the packaging container can be discharged to the outside.

このように、本連結システムによれば、流体が雄部材１の流通路１０と雌部材２の外部との間を確実に流通することができるとともに、雄部材１による受け部３４の潰れや損傷を軽減または防止することができるため、本連結システムを包装容器に適用した場合、包装容器における流体の充填や吐出を安定的に繰り返して行うことが可能となる。 Thus, according to this connection system, the fluid can reliably flow between theflow path 10 of themale member 1 and the outside of thefemale member 2, and the receivingportion 34 can be prevented from being crushed or damaged by themale member 1. can be reduced or prevented, when this connection system is applied to a packaging container, it is possible to stably and repeatedly fill and discharge the fluid in the packaging container.

なお、本実施形態では、前記流通部３４ａは、４本に形成したが、図７（ａ）（ｂ）に示すように、その他の本数に形成してもよい。 In this embodiment, fourcirculation portions 34a are formed, but other numbers may be formed as shown in FIGS. 7(a) and 7(b).

また、前記流通部３４ａは、受け部３４の中央部から周端部に延びる線状に形成したが、図７（ｃ）（ｄ）（ｅ）に示すように、線状以外の形状に形成してもよい。 Further, the flow-throughportion 34a is formed in a linear shape extending from the central portion to the peripheral end portion of the receivingportion 34, but is formed in a shape other than a linear shape as shown in FIGS. You may

また、前記流通部３４ａは、受け部３４の中央部から周端部に延びる放射状に形成したが、放射状に形成しなくてもよい。 Further, although thecirculation portion 34a is formed radially extending from the central portion to the peripheral end portion of the receivingportion 34, it may not be formed radially.

また、前記流通部３４ａは、受け部３４の中央部において互いに繋がった状態に形成したが、図７（ｆ）に示すように、互いに繋がっていない状態に形成してもよい。但し、この場合、流体が流通部３４ａを流通するためには、流通部３４ａの中央部側の端部が雄部材１の流通路１０の内側に配置される必要がある。 Further, although thecirculation portions 34a are formed in a state of being connected to each other at the central portion of the receivingportion 34, they may be formed in a state of not being connected to each other as shown in FIG. 7(f). However, in this case, in order for the fluid to circulate through the circulatingportion 34a, the central end portion of the circulatingportion 34a must be arranged inside the circulatingpassage 10 of themale member 1 .

また、前記流通部３４ａは、受け部３４の上面において溝状に形成したが、図７（ｇ）に示すように、受け部３４の内部を通過する孔状に形成してもよい。この場合、受け部３４の中央部に流通部３４ａに連通する連通孔３４ｂが形成される。 Further, although thecirculation portion 34a is formed in a groove shape on the upper surface of the receivingportion 34, it may be formed in a hole shape passing through the inside of the receivingportion 34 as shown in FIG. 7(g). In this case, acommunication hole 34b communicating with thecirculation portion 34a is formed in the central portion of the receivingportion 34. As shown in FIG.

また、前記膜状弾性体３２は、図７（ｈ）に示すように、流通部の延長方向の位置に前記通過孔３２ａが形成されてもよい。 In addition, as shown in FIG. 7(h), the film-likeelastic body 32 may be formed with thepassage hole 32a at a position in the extending direction of the circulation portion.

また、各流通部３４ａは、受け部３４の上面に少なくとも到達する深さに形成したが、所望の流体の流量によっては受け部３４の上面に到達しない深さに形成してもよい。 Moreover, although eachcirculation portion 34a is formed to a depth that reaches at least the upper surface of the receivingportion 34, it may be formed to a depth that does not reach the upper surface of the receivingportion 34 depending on the desired flow rate of the fluid.

また、前記栓部３１は、逆止弁３の内側に膨らんだ半球面状に形成したが、その他の形状に形成してもよいし、逆止弁３の内側に膨らまずに膜状弾性体３２の厚さ程度に薄く形成してもよい。 Further, although theplug portion 31 is formed in a hemispherical shape that protrudes toward the inside of thecheck valve 3, it may be formed into another shape. It may be formed as thin as the thickness of 32.

また、前記栓部３１と受け部３４は、段階的な輪郭形状に形成したが、曲線的または直線的に連続する輪郭形状に形成してもよい。要は、逆止弁３が、その輪郭形状にかかわらず、雄部材１の先端部を受けるための受け部３４と、雌部材２の開口部２０ｂを閉鎖または開放する栓部３１として機能する構造を有していればよい。 Further, although theplug portion 31 and the receivingportion 34 are formed in a stepwise contour shape, they may be formed in a continuous contour shape in a curved line or in a straight line. In short, thecheck valve 3 functions as a receivingportion 34 for receiving the distal end portion of themale member 1 and aplug portion 31 for closing or opening theopening 20b of thefemale member 2, regardless of its contour shape. should have

また、前記受け部３４は、雌部材２の開口部２０ｂの下方で露出するまで雄部材１に押されるものとしたが、逆止弁３の栓部３１が雌部材２の開口部２０ｂを開放した場合に流体が流通可能であれば、必ずしも雌部材２の開口部２０ｂから露出しなくてもよい。 Further, although the receivingportion 34 is pushed by themale member 1 until it is exposed below theopening 20b of thefemale member 2, theplug portion 31 of thecheck valve 3 opens theopening 20b of thefemale member 2. It is not necessarily exposed from theopening 20b of thefemale member 2 as long as the fluid can flow therethrough.

また、前記雄部材１の流通路１０を流れてきた流体を逆止弁３を介して包装容器内に充填するものとしたが、流体を包装容器のその他の箇所から直接充填してもよい。 Also, although the fluid flowing through theflow path 10 of themale member 1 is filled into the packaging container via thecheck valve 3, the fluid may be directly filled from other locations of the packaging container.

また、本連結システムを包装容器に適用した場合について説明したが、その他の装置や器具などに適用してもよい。 Moreover, although the case where this connection system is applied to a packaging container has been described, it may be applied to other devices and instruments.

以上、図面を参照して本発明の実施形態を説明したが、本発明は、図示した実施形態のものに限定されない。図示された実施形態に対して、本発明と同一の範囲内において、あるいは均等の範囲内において、種々の修正や変形を加えることが可能である。 Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be added to the illustrated embodiment within the same scope as the present invention or within an equivalent scope.

１…雄部材
１０…流通路
１１…第１の雄本体部
１２…第２の雄本体部
１３…ショルダー部
２…雌部材
２０…導通路
２０ａ…挿入口
２０ｂ…開口部
２１…雌本体部
２１ａ…溶着部
２１ｂ…リブ
２２…座部
２２ａ…凹部
２３…ショルダー部
３…逆止弁
３１…栓部
３２…膜状弾性体
３２ａ…通過孔
３３…取付部
３３ａ…側面部
３３ｂ…引掛部
３４…受け部
３４ａ…流通部
３５…流入空間DESCRIPTION OFSYMBOLS 1...Male member 10... Flowpath 11... 1st male main-body part 12... 2nd male main-body part 13...Shoulder part 2...Female member 20... Conductingpath 20a...Insertion opening 20b...Opening 21... Female main-body part21a Weldingportion 21b Rib 22Seatportion 22a Recess 23Shoulder portion 3Check valve 31Plug portion 32 Membraneelastic body32a Passing hole 33Mounting portion33a Side portion33b Hook portion 34Receiving portion34a Flow portion 35 Inflow space

Claims (7)

Translated fromJapanese

流体が流れる流通路を内部に有する雄部材と、前記雄部材が挿入される導通路を内部に有する雌部材と、前記雌部材の前記導通路の開口部に設けられる逆止弁とを備える連結システムであって、
前記逆止弁は、前記雌部材の開口部を閉鎖または開放する栓部と、前記栓部の周囲に一体的に設けられ、流体が通過する通過孔を有する膜状弾性体と、前記膜状弾性体の周囲に一体的に設けられ、前記雌部材に取り付けられる取付部とを備え、
前記栓部は、前記雄部材の先端部を受けるための受け部が一体的に設けられ、該受け部に流体が流通するための一ないし複数の流通部が中央部から周端部に延びる態様で形成されており、
前記雄部材が前記雌部材に挿入される前の前記逆止弁の閉鎖時において、前記膜状弾性体が有する弾性力により前記栓部が前記雌部材の前記開口部を閉鎖する一方、
前記雄部材が前記雌部材に挿入される際の前記逆止弁の開放時において、前記雄部材により前記受け部が押されることにより、前記栓部が前記雌部材の前記開口部を開放するとともに、前記膜状弾性体が前記雌部材との間において流体が流入するための所定の大きさの流入空間を形成することを特徴とする連結システム。A connection comprising: a male member having a flow passage through which fluid flows; a female member having a conducting passage into which the male member is inserted; and a check valve provided at an opening of the conducting passage of the female member a system,
The check valve includes a plug portion for closing or opening the opening of the female member, a film-like elastic body integrally provided around the plug portion and having a passage hole through which a fluid passes, and the film-like elastic body. a mounting portion integrally provided around the elastic body and mounted to the female member;
The plug part is integrally provided with a receiving part for receiving the distal end part of the male member, and one or more circulation parts for circulating the fluid to the receiving part extend from the central part to the peripheral end part. is formed of
When the check valve is closed before the male member is inserted into the female member, the elastic force of the membrane-like elastic body causes the plug to close the opening of the female member,
When the check valve is opened when the male member is inserted into the female member, the receiving portion is pushed by the male member so that the stopper opens the opening of the female member. 1. A connecting system, wherein said membrane-like elastic body and said female member form an inflow space of a predetermined size for inflow of fluid. 前記流通部は、前記受け部の上面の中央部から周端部に延びる溝状に形成されている請求項１に記載の連結システム。 2. The connection system according to claim 1, wherein the flow-through portion is formed in the shape of a groove extending from the central portion to the peripheral edge portion of the upper surface of the receiving portion. 前記流通部は、前記受け部の中央部から周端部に延びる放射状に形成されている請求項１または請求項２に記載の連結システム。 3. The connection system according to claim 1, wherein the flow-through portion is radially formed extending from the central portion of the receiving portion to the peripheral end portion thereof. 前記流通部は、前記受け部の中央部において互いに繋がった状態に形成されている請求項１から請求項３のいずれかに記載の連結システム。 4. The connection system according to any one of claims 1 to 3, wherein the flow portions are formed in a state of being connected to each other at the central portion of the receiving portion. 前記流通部は、前記受け部の中央部から周端部に延びる線状に形成されている請求項１から請求項４のいずれかに記載の連結システム。 5. The connection system according to any one of claims 1 to 4, wherein the circulating portion is formed in a linear shape extending from the central portion to the peripheral end portion of the receiving portion. 前記膜状弾性体は、前記流通部の延長方向の位置に前記通過孔が形成されている請求項１から請求項５のいずれかに記載の連結システム。 6. The connection system according to any one of claims 1 to 5, wherein the film-like elastic body is formed with the passage hole at a position in the extension direction of the circulation portion. 請求項１から請求項６のいずれかに記載の連結システムに用いられる逆止弁であって、
前記逆止弁は、前記雌部材の開口部を閉鎖する栓部と、前記栓部の周囲に一体的に設けられ、流体が通過する通過孔を有する膜状弾性体と、前記膜状弾性体の周囲に一体的に設けられ、前記雌部材に取り付けられる取付部とを備え、
前記栓部は、前記雄部材の先端部を受けるための受け部が一体的に設けられ、該受け部に流体が流通するための一ないし複数の流通部が中央部から周端部に延びる態様で形成されていることを特徴とする逆止弁。

A check valve used in the connection system according to any one of claims 1 to 6,
The check valve includes a plug portion that closes the opening of the female member, a film-like elastic body that is integrally provided around the plug portion and has a passage hole through which a fluid passes, and the film-like elastic body. and a mounting portion integrally provided around the periphery of the and attached to the female member,
The plug part is integrally provided with a receiving part for receiving the distal end part of the male member, and one or more circulation parts for circulating the fluid to the receiving part extend from the central part to the peripheral end part. A check valve characterized by being formed of

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