JPH0738772Y2 - Check valve - Google Patents
Check valveInfo
- Publication number
- JPH0738772Y2 JPH0738772Y2 JP1992079479U JP7947992U JPH0738772Y2 JP H0738772 Y2 JPH0738772 Y2 JP H0738772Y2 JP 1992079479 U JP1992079479 U JP 1992079479U JP 7947992 U JP7947992 U JP 7947992U JP H0738772 Y2 JPH0738772 Y2 JP H0738772Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- end side
- valve
- flow pipe
- check valve
- 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】[Detailed description of the device]
【０００１】[0001]
【産業上の利用分野】本考案は、例えば、風船玩具、水
嚢等のように空気、液体等の流体を密に充填収容した
り、食品等を簡便容易に真空包装するために用いるプラ
スチックフィルム製の扁平な逆止弁の改良に関する。BACKGROUND OF THE INVENTION The present invention relates to a plastic film used for densely packing and storing fluids such as air and liquids such as balloon toys and water sacks, and for easily and easily vacuum packaging foods and the like. To improve flat check valve made of steel.
【０００２】[0002]
【従来の技術】この種の逆止弁としては、従来より多種
多様のものが提案実施されており、例えば、この考案の
考案者によって先に開発されたものであるが、実公平３
−１４６１４号公報に開示されているように、プラスチ
ックフィルムにより扁平に形成した流体の流通管と、該
流通管内に装設した少なくとも１つの弁本体とから構成
されており、この弁本体は、方形のプラスチック片から
成り、且つこの弁本体はその両側辺が流通管の両側辺に
接着されると共に、流体の流通方向において、弁本体の
外端側の辺縁が流通管の両扁平面のいづれか一方の内面
に接着されて該部に閉塞部と開放部が形成され、且つ弁
本体の内端側の辺縁は接着されることなく、流通管の両
扁平面との間は共に開放されており、その内端側の一方
の開放部と上記外端側の開放部との間に形成された弁本
体と同巾の間隙流路により流体を流通可能に構成した逆
止弁が知られている。2. Description of the Related Art A wide variety of check valves of this type have been proposed and implemented, for example, those which were previously developed by the inventor of this invention.
As disclosed in Japanese Patent Publication No. 14614, it is composed of a fluid flow pipe formed flat by a plastic film and at least one valve main body installed in the flow pipe, and the valve main body has a rectangular shape. This valve body is adhered to both sides of the flow pipe, and the outer edge of the valve body is either a flat surface of the flow pipe in the fluid flow direction. It is adhered to one inner surface to form a closed portion and an open portion, and the inner end side edge of the valve body is not adhered, and is open between both flat surfaces of the flow pipe. A check valve is known in which a fluid is allowed to flow through a gap flow passage having the same width as the valve body formed between the one open portion on the inner end side and the open portion on the outer end side. There is.
【０００３】[0003]
【考案が解決しようとする課題】而して、上記の逆止弁
は、構造が簡単で安価に提供でき、且つ所期の本来の逆
止動作を行ない得た場合は、優れた逆止効果を発揮でき
るが、その反面、次のような問題点がある。The above-described check valve has a simple structure and can be provided at a low cost, and has an excellent check effect when the intended check operation can be performed. However, there are the following problems.
【０００４】即ち、上記の逆止弁を構成している流通管
及び弁本体は、共に柔軟で薄いプラスチックフィルムを
素材としているため相互に密着し易く、したがって上記
逆止弁の閉塞部側に面する弁本体の内端側の表面が流通
管の内面に密着し易いため、不測に密着して逆止作用が
鋭敏に働かずに、逆止効果を確実に達成できない事態を
頻繁に生じるといった重大な問題がある。That is, since the flow pipe and the valve body constituting the above-mentioned check valve are both made of a flexible and thin plastic film, they are easily adhered to each other, and therefore, the check valve closes to the closed side. Since the inner surface of the valve body easily adheres to the inner surface of the flow pipe, it unexpectedly adheres and the check function does not work sharply, often leading to situations where the check effect cannot be reliably achieved. There is a problem.
【０００５】本考案は、上記の問題を解決することを課
題として開発されたもので、上記従来の逆止弁の有する
利点を具備すると共に、より確実に逆止効果を達成でき
る信頼性の高い逆止弁を提供することを目的とする。The present invention was developed with the object of solving the above problems, and has the advantages of the above-mentioned conventional check valves, and is highly reliable in that the check effect can be achieved more reliably. The purpose is to provide a check valve.
【０００６】[0006]
【課題を解決するための手段】上記の課題を解決し、そ
の目的を達成する手段として、本考案では、フィルムに
より扁平に形成した流体の流通管と、該流通管内に装設
した少なくとも１つの弁本体とから構成されており、こ
の弁本体は、プラスチックフィルム片から成り、且つこ
の弁本体はその両側辺が流通管の両側辺に接着されると
共に、流体の流通方向において、弁本体の一端側の辺縁
が流通管の両扁平面のいづれか一方の内面に接着されて
該部に閉塞部と開放部が形成され、且つ弁本体の他端側
の辺縁は接着されることなく、流通管の両扁平面との間
は共に開放されており、その他端側の一方の開放部と上
記一端側の開放部との間に形成された間隙流路により流
体を流通可能に構成した逆止弁において、上記閉塞部側
に面する弁本体の他端側の表面に、該表面が流通管の内
面に密着して逆止作用が低下するのを防止するための密
着防止層を形設したことを特徴とする逆止弁を開発し、
採用した。Means for Solving the Problems As means for solving the above problems and achieving the object, in the present invention, a fluid flow pipe formed flat by a film and at least one fluid pipe installed in the flow pipe are provided. The valve body is composed of a plastic film piece, and both sides of the valve body are adhered to both sides of the flow pipe, and one end of the valve body in the fluid flow direction is formed. The side edge is adhered to one of the inner surfaces of both flat surfaces of the flow pipe to form a closed part and an open part in that part, and the other end side of the valve body is not adhered and A check valve that is open between both flat surfaces of the pipe and that allows fluid to flow through a gap flow path formed between one open portion on the other end side and the open portion on the one end side. In the valve, of the valve body facing the closed side On the surface of the end side, to develop a check valve is surface and a check act in close contact with the inner surface of the flow pipe has Katachi設adhesion preventing layer for preventing the reduction,
Adopted.
【０００７】また、本考案では、上記のように構成した
逆止弁において、弁本体の他端側の一方の開放部と弁本
体の一端側の開放部との間に形成された間隙流路が全部
開通されている逆止弁、及び弁本体の他端側の一方の開
放部と弁本体の一端側の開放部との間に形成された間隙
流路が接着手段により部分的に閉じられている逆止弁、
及び流通管内に複数の弁本体が所要の間隔を保って直列
に装設されている逆止弁、及び複数の弁本体が同一態様
で装設されている逆止弁、並びに複数の弁本体が正逆所
望の配置態様で装設されている逆止弁を夫々開発し、採
用した。Further, according to the present invention, in the check valve constructed as described above, the gap passage formed between the one open portion on the other end side of the valve body and the open portion on one end side of the valve body. Is opened, and the gap flow path formed between the one open end on the other end side of the valve body and the open end on the one end side of the valve body is partially closed by the adhesive means. Check valve,
And a check valve in which a plurality of valve bodies are installed in series in the flow pipe at a required interval, a check valve in which a plurality of valve bodies are installed in the same manner, and a plurality of valve bodies. Each of the check valves installed in the desired arrangement was developed and adopted.
【０００８】[0008]
【作用】上記の構成において、閉塞部が位置する方向か
ら流通管内に流体が供給されると、流体は弁本体の一端
側の開放部と弁本体の他端側の開放部とを連通する間隙
流路を経て円滑に流入し、本案逆止弁を装備した風船玩
具等の内部に流体を流入する。In the above structure, when the fluid is supplied into the flow pipe from the direction in which the closing portion is located, the fluid communicates with the opening portion at one end of the valve body and the opening portion at the other end of the valve body. The fluid smoothly flows through the flow path, and the fluid flows into the balloon toy equipped with the check valve of the present invention.
【０００９】一方、風船玩具等の内部に充填された流体
は、その圧力により外部に流出されようとしても、弁本
体の一端側が閉塞されて行止まりになっている関係か
ら、その圧力により弁本体を圧迫して上記の間隙流路の
主に他端側付近を密閉し、流体の流出を阻止する。On the other hand, even if the fluid filled inside the balloon toy or the like tries to flow out to the outside due to the pressure, one end of the valve body is blocked and the valve body is stopped. Is squeezed to close the vicinity of the other end of the above-mentioned interstitial flow channel to prevent the outflow of fluid.
【００１０】この時、閉塞部側に面する弁本体の他端側
の表面には、該表面が流通管の内面に密着するのを防止
するための密着防止層が形設されているので、間隙流路
の密閉を誤動作なく確実に行ない得る作用がある。At this time, an adhesion preventing layer for preventing the surface from adhering to the inner surface of the flow pipe is formed on the surface on the other end side of the valve body facing the closed portion side. There is an effect that the gap flow passage can be reliably sealed without malfunction.
【００１１】また、充填された流体の排出は、その密閉
された間隙流路に一端側の開放部から細棒等を挿入して
押開くことにより円滑に行なわれる。なお、上記の諸作
用は、本逆止弁を食品等の真空包装用逆止弁に適用した
場合も同様に行なわれるものである。Further, the filled fluid can be discharged smoothly by inserting a thin rod or the like into the hermetically closed gap passage from the opening portion on one end side and pushing it open. The above-described various operations are similarly performed when the present check valve is applied to a check valve for vacuum packaging of food or the like.
【００１２】[0012]
【実施例】以下に、本考案の実施例を添付図面に基づい
て説明すれば、図１〜図７において、本考案に係る逆止
弁Ｖは、ポリエチレンフィルム等の柔軟にして肉薄のプ
ラスチックフィルムにより扁平に形成した所要巾、所要
長さの流体の流通管１と、該流通管内に装設した流通管
１と同一材料の１枚の方形のプラスチックフィルムから
成る１つの弁本体２とから構成されている。Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 7, a check valve V according to the present invention is a flexible and thin plastic film such as polyethylene film. And a flow passage 1 of a fluid having a required width and length formed flat by the above, and one valve body 2 made of a single rectangular plastic film made of the same material as the flow pipe 1 installed in the flow pipe. Has been done.
【００１３】而して、上記弁本体２は、その両側辺２
ａ、２ａが流通管１の両側辺１ａ、１ａに接着されると
共に、図６に示すように流体の流通方向において、弁本
体２の一端側の辺縁２ｂが流通管１の図に向って下側の
扁平面の内面１ｂに接着されることにより、該部に閉塞
部３と開放部４が形成されている。Thus, the valve body 2 has both sides 2
a and 2a are adhered to both sides 1a and 1a of the flow pipe 1, and the edge 2b on one end side of the valve body 2 faces the drawing of the flow pipe 1 in the fluid flow direction as shown in FIG. By adhering to the inner surface 1b of the lower flat surface, the closed portion 3 and the open portion 4 are formed in the portion.
【００１４】また、弁本体２の他端側の辺縁２ｃは流通
管１に接着されずに、該辺縁２ｃと流通管１の両扁平面
との間には開放部５、５′が形成されて、該他端側の一
方の開放部５と上記一端側の開放部４との間に形成され
た弁本体と同巾の間隙流路６を介して流体の流通を可能
に構成されている。Further, the edge 2c on the other end side of the valve body 2 is not adhered to the flow pipe 1, and open portions 5 and 5'are provided between the edge 2c and both flat surfaces of the flow pipe 1. It is formed so that the fluid can flow through a gap channel 6 having the same width as the valve body formed between the one open portion 5 on the other end side and the open portion 4 on the one end side. ing.
【００１５】さらに、上記閉塞部３側に面する弁本体２
の他端側の表面には、該表面が流通管１の内面に不測に
密着するのを防止するために、この実施例では、シリコ
ン樹脂等の剥離性に富んだ密着防止剤層７が形設されて
おり、図において８は流体の排出阻止作用（逆止弁作
用）を一層確実に行なうために、流通管１の、図に向っ
て上側の扁平面の内面と弁本本体２との上面を１個所で
部分的に接着した接着部、９は流通管１の流体給排口縁
にその給排操作を容易に行なうために突成した給排器具
類のガイド用舌片を夫々示すものである。なお、上記密
着防止剤層７は、この実施例では、図３に示すように所
定範囲内で膜面状に塗布層成されているが、複数の点ま
たは線で形成されてもよい。Further, the valve body 2 facing the closed portion 3 side
In order to prevent the surface from being inadvertently adhered to the inner surface of the flow pipe 1, the adhesion preventing agent layer 7 having a high peeling property such as silicone resin is formed on the other end surface of the In order to more reliably perform the fluid discharge prevention action (check valve action), the reference numeral 8 in the drawing shows the inner surface of the flattened upper surface of the flow pipe 1 facing the drawing and the valve body 2 Adhesive parts where the upper surface is partially adhered at one place, and 9 are tongue pieces for guiding the supply and discharge devices which are formed on the edge of the fluid supply and discharge port of the flow pipe 1 to facilitate the supply and discharge operation. It is a thing. In this embodiment, the anti-adhesion agent layer 7 is formed as a coating layer on the film surface within a predetermined range as shown in FIG. 3, but may be formed by a plurality of dots or lines.
【００１６】図３は、本逆止弁の作製手段の１例を理解
し易くするための弁の分解図であって、この実施例で
は、上記構造の逆止弁の作製の容易化を図って、流通管
１には２枚のプラスチックフィルムＦ1、Ｆ1を用い、弁
本体２には、他端側の片面に前記密着防止剤層７を形設
した長方形状の１枚のプラスチックフィルムＦ2を用い
て、該フィルムＦ2をフィルムＦ1、Ｆ1間に介在挾着
し、前記したように、夫々の両側縁１ａ、１ａと２ａ、
２ａとを加熱接着すると共に、弁本体の辺縁２ｂを流通
管の内面１ｂに加熱接着し、更に弁本体と流通管とを符
号８の部分で加熱接着して上記構造の逆止弁Ｖを構成す
るものである。FIG. 3 is an exploded view of the valve for facilitating understanding of one example of the manufacturing means of the present check valve. In this embodiment, manufacturing of the check valve having the above structure is facilitated. Then, two plastic films F 1 and F 1 are used for the flow pipe 1, and one rectangular plastic film in which the adhesion preventive agent layer 7 is formed on one surface on the other end side of the valve body 2 F 2 is used to interpose the film F 2 between the films F 1 and F 1 and, as described above, the respective side edges 1a, 1a and 2a,
2a is heat-bonded, the edge 2b of the valve body is heat-bonded to the inner surface 1b of the flow pipe, and the valve body and the flow pipe are heat-bonded at the portion 8 to form the check valve V having the above structure. It is what constitutes.
【００１７】次に、上記のように構成した逆止弁の１使
用例と作用を図４〜図７に基づいて説明する。図におい
て、ａは扁平な風船玩具本体であって、周縁の１部に唇
状の突出部ｂを備えた略正円形状のプラスチックフィル
ムｃを２枚用いて重合し、突出部ｂの先端辺縁を除く全
周縁を接着して、周縁の１部に開口部ｄを設けて構成さ
れている。Next, one use example and operation of the check valve constructed as described above will be described with reference to FIGS. In the figure, a is a flat balloon toy body, and is superposed by using two substantially circular plastic films c having a lip-shaped protrusion b on one part of the peripheral edge, and the tip side of the protrusion b is superposed. All the peripheral edges except the edges are bonded, and an opening d is provided in a part of the peripheral edges.
【００１８】而して、この風船玩具本体ａの開口部ｄか
ら前記逆止弁Ｖを、その弁本体２の装設側を本体内部に
位置させて挿入し、その流通管１の先端を本体ａの突出
部ｂよりも若干突出させ、図５に示すように、その挿入
部外周を本体ａの開口部ｄの内周に１個所で線状に加熱
接着ｅすると共に、開口部の残余の内周を相互に線状に
加熱接着ｆすることにより、本体ａの内外を逆止弁Ｖの
みを介して連通させた風船玩具を構成する。Then, the check valve V is inserted through the opening d of the balloon toy body a with the mounting side of the valve body 2 positioned inside the body, and the tip of the flow pipe 1 is inserted into the body. a is slightly protruded from the protruding portion b of a, and as shown in FIG. 5, the outer periphery of the insertion portion is linearly heat-bonded e to the inner periphery of the opening d of the main body a at one location and the remaining portion of the opening The balloon toys in which the inside and the outside of the main body a are communicated with each other only through the check valve V are configured by heat-bonding f of the inner circumference to each other linearly.
【００１９】上記のように構成した風船玩具内に気体を
吹込む際は、逆止弁Ｖの流通管１のガイド用舌片９を利
用することにより、給気具の給気口先端を流通管１内に
容易に挿入でき、次いで給気を行なうと、気体は弁本体
と同中の間隙流路６を経て本体ａ内に円滑に充填収容さ
れる（図７のイ参照）。When the gas is blown into the balloon toy constructed as described above, the guide tongue 9 of the flow pipe 1 of the check valve V is used to flow through the tip of the air supply port of the air supply device. When the gas can be easily inserted into the pipe 1 and then air is supplied, the gas is smoothly filled and stored in the main body a through the interstitial channel 6 in the same body as the valve main body (see (a) in FIG. 7).
【００２０】給気完了後に給気具を抜脱すると、充填さ
れた気体は、この圧力により外部に流出されようとして
も、弁本体２の外端側（先端側）に閉塞部３が設けられ
て行止まりになっているため、気体の圧力により弁本体
を流通管１の図に向って上側の扁平面の内面に圧接し
て、間隙流路６を密閉し、気体の流出は阻止される（図
６及び図７のロ参照）。When the air supply tool is removed after the air supply is completed, the filled gas is provided with the closing portion 3 on the outer end side (tip end side) of the valve body 2 even if it is about to flow out due to this pressure. Since it is a dead end, the valve body is brought into pressure contact with the inner surface of the upper flat surface toward the drawing of the flow pipe 1 by the pressure of the gas to seal the gap flow path 6 and prevent the outflow of gas. (See FIG. 6 and FIG. 7B).
【００２１】この時、逆止弁の閉塞部３側に面する弁本
体２の他端側の表面には、該表面が流通管１の内面に不
測に密着するのを防止するための密着防止剤層７が形設
されているので、上述した間隙流路６の密閉は誤動作な
く円滑確実に行なわれる。At this time, on the surface of the other end side of the valve body 2 facing the closed portion 3 side of the check valve, the adhesion prevention for preventing the surface from accidentally adhering to the inner surface of the flow pipe 1. Since the agent layer 7 is formed, the above-mentioned sealing of the gap channel 6 can be smoothly and surely performed without malfunction.
【００２２】また、充填された気体を排出する際は、そ
の密閉された間隙流路６に弁本体の閉塞側から細棒等を
挿入して押開くことにより円滑に行ない得るものであ
る。なお、間隙流路６の密閉状態が萬一不完全で、１部
の気体が外部に洩出しようとしても、気体の圧力が逆止
弁の流通管１の外周側（接着ｅの部分）に作用して流通
管１をも密閉状に閉塞するので、気体の洩出を２段構え
で確実に防止するものである。Further, when the filled gas is discharged, it can be smoothly performed by inserting a thin rod or the like into the hermetically closed gap passage 6 from the closed side of the valve body and pushing it open. It should be noted that the sealed state of the gap flow path 6 is incomplete, and even if a part of the gas leaks to the outside, the pressure of the gas is on the outer peripheral side of the flow pipe 1 of the check valve (the portion of the adhesive e). Since the flow pipe 1 is actuated to close the flow pipe 1 in a hermetically sealed manner, the gas leakage can be reliably prevented by the two-stage structure.
【００２３】さらに、本考案の実施例にしたがえば、流
通管１の図に向って上側の内面と弁本体２との上面を１
個所で部分的に接着８して間隙流路６の巾を狭く規制し
てあるので、流体の排出阻止作用を一層向上できるもの
である。Further, according to the embodiment of the present invention, the inner surface of the upper side of the flow pipe 1 facing the drawing and the upper surface of the valve body 2 are
Since the width of the gap flow path 6 is regulated to be narrow by partially adhering 8 at a portion, the action of preventing fluid discharge can be further improved.
【００２４】図８の（イ）、（ロ）は、本考案の他の実
施例を略示したもので、図８の（イ）は流通管１内に２
つの弁本体２、２を所要の間隔を保って夫々同一の配置
態様で直列に装設して逆止弁を構成した事例を示してお
り、また、図８の（ロ）は流通管１内に２つの弁本体
２、２を所要の間隔を保って、流通管１の図に向って上
下の扁平面に対し夫々逆の位置に配置して直列に装設し
て逆止弁を構成した事例を示している。これらの実施例
では、２つの弁本体により２段構えで流体の排出阻止を
図っているので、流体の密閉効果を一層向上できる利点
がある。8 (a) and 8 (b) schematically show another embodiment of the present invention, in which FIG.
FIG. 8 shows an example in which two valve bodies 2 and 2 are installed in series in the same arrangement mode with a required space therebetween to form a check valve. Further, FIG. The two valve bodies 2 and 2 are arranged at opposite positions with respect to the upper and lower flat surfaces of the flow pipe 1 with a required space therebetween, and are installed in series to form a check valve. The case is shown. In these embodiments, the two valve bodies are arranged in two stages to prevent the discharge of the fluid, so that there is an advantage that the fluid sealing effect can be further improved.
【００２５】以上、本考案の主要な実施例について詳述
したが、本考案は上記実施例に限定されるものではな
く、例えば密着防止剤としては、プラスチックフィルム
相互が密着するのを効果的に阻止できるものであれば広
く選択採用できるものであって、要するに考案の目的を
達成でき、且つ考案の要旨を逸脱しない範囲内で、種々
の設計変更が可能であることは当然である。Although the main embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. For example, as an adhesion preventive agent, it is effective to make plastic films adhere to each other. It can be widely selected and adopted as long as it can prevent, and it is needless to say that various design changes can be made without departing from the spirit of the invention.
【００２６】[0026]
【考案の効果】以上のように構成した本考案によれば、
その独自の構造に基づき、素材の肉薄性、柔軟性と相俟
って、次の優れた諸効果を奏し得るものである。According to the present invention configured as described above,
Based on its unique structure, in combination with the thinness and flexibility of the material, the following excellent effects can be achieved.
【００２７】（１） 逆止弁の閉塞部側に面する弁本体
の他端側の表面には、該表面が流通管の内面に密着する
のを防止するための密着防止層が形設されているので、
間隙流路の密閉を誤動作なく円滑確実に行ない得て、逆
止効果を著しく向上できる。(1) On the surface of the other end side of the valve body facing the closed portion side of the check valve, an adhesion prevention layer is formed to prevent the surface from adhering to the inner surface of the flow pipe. Because
The gap flow passage can be sealed smoothly and reliably without malfunction, and the check effect can be significantly improved.
【００２８】（２） 弁本体の巾を間隙流路の巾と同巾
に形成したので、袋体等に充填した流体圧により、閉塞
部の存在によって間隙流路側に加圧された弁本体は、そ
の全面で間隙流路を全巾に亘って均等に加圧閉止でき、
確実な逆止弁効果を奏し得て流体の洩出を確実に防止し
得ると共に、弁本体の開放による間隙流路からの流体の
取出しを円滑、迅速に行ない得る。(2) Since the width of the valve main body is formed to be the same as the width of the gap flow passage, the valve main body pressurized to the gap flow passage side due to the presence of the closed portion due to the fluid pressure filled in the bag or the like is , The entire surface of the gap can be uniformly pressurized and closed over the entire width,
A reliable check valve effect can be obtained, fluid leakage can be reliably prevented, and fluid can be taken out from the gap flow passage smoothly and quickly by opening the valve body.
【００２９】（３） ３枚のプラスチックフィルムを用
いるだけでよく、且つその接着部は流通管の両側と流通
管を横切る一側の合計３個所のみであるから、構成及び
製造工程が極めて簡単で安価に提供でき、故障の発生も
少ない。(3) Since only three plastic films need to be used, and the bonding portions are only three places on both sides of the flow pipe and one side crossing the flow pipe, the structure and manufacturing process are extremely simple. It can be provided at a low price and there are few failures.
【００３０】（４） 流通管内に複数の弁本体を直列状
に配設して、数段構えで流体の排出阻止を図ることによ
り、流体の密封効果を一層向上できる。(4) By arranging a plurality of valve bodies in series in the flow pipe to prevent the discharge of fluid in several stages, the fluid sealing effect can be further improved.
【図１】本考案の実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】図１のＩＩ−ＩＩ線に沿う拡大断面図である。FIG. 2 is an enlarged cross-sectional view taken along the line II-II of FIG.
【図３】分解斜視図である。FIG. 3 is an exploded perspective view.
【図４】使用状態の一例を示す正面図である。FIG. 4 is a front view showing an example of a usage state.
【図５】図４の要部の一部切欠拡大図である。5 is a partially cutaway enlarged view of a main part of FIG. 4. FIG.
【図６】使用状態図における逆止弁作用時の縦断端面図
である。FIG. 6 is a vertical cross-sectional end view when the check valve acts in the usage state diagram.
【図７】（イ） 使用時における逆止弁の状態の説明図
であって、流体供給時における拡大断面図である。 （ロ） 使用時における逆止弁の状態の説明図であっ
て、逆止弁作用時における拡大断面図である。FIG. 7 (a) is an explanatory view of the state of the check valve during use, and is an enlarged cross-sectional view during fluid supply. (B) It is explanatory drawing of the state of a check valve at the time of use, Comprising: It is an expanded sectional view at the time of a check valve action.
【図８】（イ） 本考案の他の実施例を示す簡略説明図
である。 （ロ） 本考案の更に今一つの他の実施例を示す簡略説
明図である。FIG. 8 (a) is a simplified explanatory view showing another embodiment of the present invention. (B) It is a simplified explanatory view showing still another embodiment of the present invention.
１ 流通管 １ａ 流通管の両側辺 ２ 弁本体 ２ａ 弁本体の両側辺 ２ｂ 弁本体一端側の辺縁 ２ｃ 弁本体の他端側の辺縁 ３ 閉塞部 ４ 一端側の開放部 ５、５ｂ 他端側の両開放部 ６ 聞隙流路 ７ 密着防止剤層 1 flow pipe 1a both sides of the flow pipe 2 valve body 2a both sides of the valve body 2b edge of the valve body on one end side 2c edge of the other end of the valve body 3 closed portion 4 open end on one side 5, 5b other end Both open sides 6 Side gap flow path 7 Adhesion preventive agent layer
Claims (6)
した流体の流通管と、該流通管内に装設した少なくとも
１つの弁本体とから構成されており、この弁本体は、プ
ラスチックフィルム片から成り、且つこの弁本体はその
両側辺が流通管の両側辺に接着されると共に、流体の流
通方向において、弁本体の一端側の辺縁が流通管の両扁
平面のいづれか一方の内面に接着されて該部に閉塞部と
開放部が形成され、且つ弁本体の他端側の辺縁は接着さ
れることなく、流通管の両扁平面との間は共に開放され
ており、その他端側の一方の開放部と上記一端側の開放
部との間に形成された間隙流路により流体を流通可能に
構成した逆止弁において、上記閉塞部側に面する弁本体
の他端側の表面に、該表面が流通管の内面に密着して逆
止作用が低下するのを防止するための密着防止層を形設
したことを特徴とする逆止弁。1. A fluid flow pipe formed flat with a plastic film, and at least one valve body mounted in the flow pipe, the valve body comprising a plastic film piece, and Both sides of the valve body are adhered to both sides of the flow pipe, and the edge on one end side of the valve body is adhered to either inner surface of either flat surface of the flow pipe in the fluid flow direction. A closed part and an open part are formed in the valve body, and the edge of the valve body on the other end side is not adhered and is open between both flat surfaces of the flow pipe, and the other end side is open. In a check valve configured to allow fluid to flow through a gap flow path formed between a valve portion and the open portion on the one end side, the surface on the other end side surface of the valve body facing the closed portion side Is closely attached to the inner surface of the flow pipe
A non-return valve characterized by having an adhesion preventing layer formed to prevent the stop action from decreasing .
の一端側の開放部との間に形成された間隙流路が全部開
通されている請求項１に記載の逆止弁。2. The check valve according to claim 1, wherein the gap passage formed between the one open portion on the other end side of the valve body and the open portion on one end side of the valve body is completely opened. .
の一端側の開放部との間に形成された間隙流路が接着手
段により部分的に閉じられている請求項１に記載の逆止
弁。3. The gap flow path formed between one open portion on the other end side of the valve body and the open portion on one end side of the valve body is partially closed by an adhesive means. Check valve described.
保って直列に装設されている請求項１に記載の逆止弁。4. The check valve according to claim 1, wherein a plurality of valve bodies are installed in series in the flow pipe with a required interval.
る請求項４に記載の逆止弁。5. The check valve according to claim 4, wherein the plurality of valve bodies are mounted in the same manner.
設されている請求項４に記載の逆止弁。6. The check valve according to claim 4, wherein the plurality of valve bodies are installed in a desired arrangement of forward and reverse directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992079479U JPH0738772Y2 (en) | 1992-10-21 | 1992-10-21 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992079479U JPH0738772Y2 (en) | 1992-10-21 | 1992-10-21 | Check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0637665U JPH0637665U (en) | 1994-05-20 |
| JPH0738772Y2 true JPH0738772Y2 (en) | 1995-09-06 |
Family
ID=13691036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992079479U Expired - Lifetime JPH0738772Y2 (en) | 1992-10-21 | 1992-10-21 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738772Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005219766A (en) * | 2004-02-05 | 2005-08-18 | Kashiwara Seitai:Kk | Check valve and bag with the check valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0712775Y2 (en) * | 1988-08-10 | 1995-03-29 | 有限会社片岡加工所 | Check valve |
| JPH0722656Y2 (en) * | 1989-06-26 | 1995-05-24 | サンリーブ眼鏡株式会社 | Plastic eyeglasses |
-
1992
- 1992-10-21 JP JP1992079479U patent/JPH0738772Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005219766A (en) * | 2004-02-05 | 2005-08-18 | Kashiwara Seitai:Kk | Check valve and bag with the check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0637665U (en) | 1994-05-20 |
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