JPS636279A - Purge valve - Google Patents
Purge valveInfo
- Publication number
- JPS636279A JPS636279A JP14884286A JP14884286A JPS636279A JP S636279 A JPS636279 A JP S636279A JP 14884286 A JP14884286 A JP 14884286A JP 14884286 A JP14884286 A JP 14884286A JP S636279 A JPS636279 A JP S636279A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- valve
- film
- hole
- base film
- 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.)
- Pending
Links
- 238000010926 purge Methods 0.000 title abstract 2
- 239000010408 film Substances 0.000 claims abstract description 60
- 239000013039 cover film Substances 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 15
- 238000013022 venting Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 abstract description 5
- 239000002985 plastic film Substances 0.000 abstract description 4
- 229920006255 plastic film Polymers 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 57
- 238000007872 degassing Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 241000533293 Sesbania emerus Species 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000645 desinfectant Substances 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- -1 etc. Substances 0.000 description 2
- 229920002457 flexible plastic Polymers 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
Description
【発明の詳細な説明】
゛、業上の利 野
本発明は、保存中に微量のガスを発生する内容品、例え
ば焙焼したコーヒー豆、農薬、殺菌剤等を充容する密封
体に取り付けられて密封体内部に発生したガスを外部に
逃散させるのに好適に用いられるガス抜き用弁に関する
。[Detailed Description of the Invention] ゛, Torono in the Industry The present invention is directed to a container that is attached to a sealed body filled with contents that generate trace amounts of gas during storage, such as roasted coffee beans, pesticides, disinfectants, etc. The present invention relates to a gas vent valve that is suitably used to release gas generated inside a sealed body to the outside.
丈來匹挟豚
従来、焙焼したコーヒー豆、農薬（特に水和剤）、塩素
系殺菌剤等を密封袋内に充容しておくと、これら内容品
から炭酸ガスや塩素ガス等のガスが発生し、密封袋を膨
張させるなどの不都合が生じる問題があった。このため
、密封袋内のガス抜き手段が種々提案されている（特開
昭５６−３２２４４号、同５７−１５３８５８号、同６
０−５７０６９号公報）。Traditionally, when a sealed bag is filled with roasted coffee beans, agricultural chemicals (especially hydrating agents), chlorine-based disinfectants, etc., gases such as carbon dioxide and chlorine gas are released from the contents. This has caused problems such as the expansion of the sealed bag. For this reason, various means for degassing the sealed bag have been proposed (Japanese Patent Application Laid-open Nos. 56-32244, 57-153858, 6
0-57069).
充」ｐ冒ｉ汲山」仁とζｔＩＬＬ仮
しかしながら、密封袋内のガスを確実に外部に逃散させ
ると共に、外部から密封袋内への湿気等の侵入を確実に
防止し得、しかも簡単かつ安価なガス抜き手段は極めて
少ないのが現状である。However, it is possible to reliably dissipate the gas inside the sealed bag to the outside, and reliably prevent moisture from entering the sealed bag from the outside, and it is simple and inexpensive. At present, there are very few means for degassing.
本−発明は上記事情に鑑みなされたもので、保存中など
に微量のガスを発生する内容品を充容する密封体等に取
り付けられ、その内部に発生したガスを確実に外部に逃
がすことができると共に、外部からの湿気等の浸入を確
実に防止し得、しかもその構成が比較的簡単で容易にか
つ低コストで製造することができるガス抜き用弁を提供
することを目的とする。The present invention has been made in view of the above circumstances, and is attached to a sealed body etc. that is filled with contents that generate a small amount of gas during storage, etc., so that the gas generated inside the body can be reliably released to the outside. To provide a gas venting valve which is capable of reliably preventing infiltration of moisture etc. from the outside, has a relatively simple structure and can be manufactured easily and at low cost.
４題づを解決するための手段
即ち、本発明ガス抜き用弁は上記目的を達成するため、
保存中に微量のガスを発生する内容品を充容する密封体
にこの密封体に形成された通気孔を覆って取り付けられ
、前記内容品から発生する体気圧よりも高圧のガスを前
記通気孔から外部に逃散させるガス抜き用弁において、
前記密封体上に接着される基盤に前記通気孔と連通ずる
ガス流出用貫通孔を穿設すると共に、この基盤フィルム
及びカバーフィルムの周縁部の一部を互に接着すること
により内部に空間部を有すると共に、周縁未接着部が開
口する略装状の弁主体を形成すると共に、この弁主体の
上記空間部内に上記基盤フィルムのガス流出用貫通孔を
覆って閉塞する弁フィルムとこの弁フィルムを基盤フィ
ルム方向に押圧する押圧部とを備えた閉塞部材を配設し
て、前記内容品から発生する大気圧よりも高圧のガスを
上記基盤フィルムのガス流出用貫通孔から基盤フィルム
と弁フィルムとの間を通って空間部内に侵入させ、この
ガスを基盤フィルムとカバーフィルムとの周縁未接着部
から外部に逃散させるよう構成したものである。Means for solving the four problems, that is, the gas venting valve of the present invention achieves the above objects,
A sealed body filled with contents that generate a small amount of gas during storage is attached over a vent formed in the sealed body, and the gas at a pressure higher than the body pressure generated from the contents is passed through the vent hole. In a vent valve that allows gas to escape to the outside,
A gas outflow through hole communicating with the ventilation hole is formed in the base to be bonded onto the sealing body, and a space is created inside by bonding part of the periphery of the base film and the cover film to each other. and a valve film that forms a substantially-shaped valve main body with an open peripheral edge unbonded portion, and covers and closes the gas outflow through hole of the base film in the space of the valve main body, and the valve film. A closing member having a pressing portion that presses the gas in the direction of the base film is disposed, and gas at a pressure higher than atmospheric pressure generated from the contents is released from the gas outflow through hole of the base film to the base film and the valve film. The gas is allowed to enter the space through the space between the base film and the cover film, and the gas is allowed to escape to the outside from the unbonded portion of the periphery of the base film and cover film.
北朋
本発明のガス抜き用弁は上述した構成としたことにより
、密封体に通気孔を形成し、この通気孔にガス放散用貫
通孔を対応させて密封体に取り付けた場合、密封体内の
ガス圧が大気圧と同程度の時は弁フィルムが押圧部の押
圧力で基盤に密接し、従って密封体内へのガスの流出入
は生じないが。Hokuto: By having the gas venting valve of the present invention configured as described above, when a ventilation hole is formed in the sealed body and the through hole for gas dissipation is made to correspond to the vent hole and is attached to the sealed body, the gas release valve of the present invention can be attached to the sealed body. When the gas pressure is about the same as atmospheric pressure, the valve film is brought into close contact with the base by the pressing force of the pressing part, so no gas flows into or out of the sealed body.
密封体内が大気圧よりも高圧になるとこのガス圧によっ
て押圧部の抑圧力に抗して弁フィルムが押し上げられ、
この時に基盤と弁フィルムとの間に生じる間隙を通って
密封体内のガスがガス抜き用弁の空間部に流入した後、
基盤フィルムとカバーフィルムとの周縁未接着部から外
部に逃散する。When the pressure inside the sealed body becomes higher than atmospheric pressure, this gas pressure pushes up the valve film against the suppressing force of the pressing part.
After the gas inside the sealing body flows into the space of the degassing valve through the gap created between the base and the valve film at this time,
It escapes to the outside from the unbonded peripheral edges of the base film and cover film.
また密封袋に取り付けられた状態で外部からの圧力によ
って弁主体が変形したとしても、従来の弁のように開口
状態になって外部からの湿気が流入しないように常に閉
塞状態が保持できるものである。Furthermore, even if the main body of the valve is deformed by external pressure while attached to a sealed bag, it will remain open and remain closed to prevent moisture from entering from the outside, unlike conventional valves. be.
次に実施例を示し、本発明を更に具体的に説明するが、
本発明は下記実施例に限定されるものではない。Next, examples will be shown to further specifically explain the present invention.
The present invention is not limited to the following examples.
宍」１例−
第１図は本発明の一実施例に係るガス抜き用弁１を示す
もので、図中２は中央部にガス流出用貫通孔３が穿設さ
れた円形基盤フィルムである。また図中４は上記基盤フ
ィルム２の外形とほぼ等しい外形を有する円形皿状のカ
バーフィルムで、このカバーフィルム３の周縁部と上記
基盤フィルム２の周縁部とは第２図に示すようにその一
部が互に接着５され、これにより内部に空間部６を有す
ると共に、周縁未接着部が開口する略装状の弁主体７が
形成されている（第２図中抜着部５を斜線で示す）。Figure 1 shows a gas venting valve 1 according to an embodiment of the present invention, and 2 in the figure is a circular base film with a gas outlet through hole 3 in the center. . Further, 4 in the figure is a circular dish-shaped cover film having an outer shape that is almost the same as the outer shape of the base film 2, and the peripheral edge of the cover film 3 and the peripheral edge of the base film 2 are separated from each other as shown in FIG. Parts are glued 5 to each other, thereby forming a valve main body 7 having an internal space 6 and a generally fitted valve body 7 whose peripheral unbonded part is open (the detachable part 5 in FIG. 2 is indicated by diagonal lines). ).
更に、図中８は上記弁主体７の空間部６内に配置され、
上記基盤フィルム２のガス流出用貫通孔３を閉塞する閉
塞部材である。この閉塞部材８は可撓性を有するプラス
チックフィルムをそのほぼ中央部で折曲することにより
形成したもので、その−側部８ａが上記基盤フィルム２
の貫通孔３を覆うと共に、他側部８ｂの外面が上記カバ
ーフィルム４の下面に接触した状態で空間部６内に配置
されている。従って、この閉塞部材８の一側部８ａはプ
ラスチックフィルムの曲げ弾性の作用で他側部８ｂによ
って基盤フィルム２に向けて付勢されており、これによ
り後述するようにこの弁主体７を密封体１３にその貫通
孔３と通気孔１２とが連通ずるように取り付けた場合、
密封体１３内と弁主体７内とのガス圧がほぼ等しい場合
には基盤フィルム２上面と部材８のｍ個部８ａ外面とは
互に密接し１貫通孔３を通って空間部６内に密封体１３
内のガスは侵入しないが、密封体１３内のガス圧が内間
部６内のガス圧よりもある程度高くなると、このガス圧
により一側部８ａが曲げ弾性に抗して上方に押し上げら
れて基盤フィルム２と一側部８ａとの密接状態が解除さ
れ、生じた間隙を通って貫通孔３から空間部６内にガス
が流入するようになっているもので、この閉塞部材８に
おいては一側部８ａが弁フィルムとして、他側部８ｂが
押圧部として構成されている。なお、閉塞部材８の他側
部８ｂの端縁８Ｃは基盤フィルム２とカバーフィルム３
との間に介装、調定されている。Furthermore, 8 in the figure is disposed within the space 6 of the valve main body 7,
This is a closing member that closes the gas outflow through hole 3 of the base film 2. This closing member 8 is formed by bending a flexible plastic film at approximately the center thereof, and the negative side 8a of the closing member 8 is formed by bending a flexible plastic film at approximately the center thereof.
The other side portion 8b is disposed in the space 6 so as to cover the through hole 3, and the outer surface of the other side portion 8b is in contact with the lower surface of the cover film 4. Therefore, one side portion 8a of this closing member 8 is urged toward the base film 2 by the other side portion 8b due to the bending elasticity of the plastic film, thereby causing the valve main body 7 to become a sealed body as described later. 13 so that the through hole 3 and the ventilation hole 12 communicate with each other,
When the gas pressures in the sealing body 13 and in the valve body 7 are approximately equal, the upper surface of the base film 2 and the outer surface of the m-piece portions 8a of the member 8 are in close contact with each other, and the gas enters the space 6 through the through hole 3. Sealed body 13
The gas inside does not enter, but when the gas pressure inside the sealing body 13 becomes higher than the gas pressure inside the inner part 6 to some extent, this gas pressure pushes the one side part 8a upward against the bending elasticity. When the close contact between the base film 2 and the one side part 8a is released, gas flows into the space 6 from the through hole 3 through the gap created. The side portion 8a is configured as a valve film, and the other side portion 8b is configured as a pressing portion. Note that the edge 8C of the other side 8b of the closing member 8 is connected to the base film 2 and the cover film 3.
Interventions and adjustments have been made between the two.
また、第３図は本発明の他の実施例を示すものである。Further, FIG. 3 shows another embodiment of the present invention.
なお、第３図のガス抜き用弁１において弁士体７は第１
図に示した実施例と同−構成であるから同一参照符号を
付してその説明を省略する４第３図に示すガス抜き用弁
１において、弁主体７内に配設された閉塞部材９は、基
盤フィルム２の貫通孔３を覆って配置されたプラスチッ
ク製の小片状弁フィルム１０と、この弁フィルム１０を
基盤２に向けて付勢する抑圧体（押圧部）１１とからな
る。In addition, in the gas venting valve 1 shown in FIG. 3, the valve body 7 is the first
Since it has the same structure as the embodiment shown in the figure, the same reference numerals will be given and the explanation thereof will be omitted.4 In the degassing valve 1 shown in FIG. consists of a small valve film 10 made of plastic disposed to cover the through hole 3 of the base film 2, and a suppressor (pressing part) 11 that urges the valve film 10 toward the base 2.
ここで、第３図に示す押圧体１１は弾力を有する四角状
プラスチックフィルムを中央部で二つ折りにして両端部
を重ね合わせることにより形成したもので、弁フィルム
１０とカバーフィルム４との間に介装され、ぞの復元力
によって弁フィルム１０を基盤フィルム２に向けて押圧
するものである。なお、押圧体の端部１１ａ及び弁フィ
ルム１０の端部１０ａはそれぞれ基盤フィルム２とカバ
ーフィルムとの間に介装、固定されている。Here, the pressing body 11 shown in FIG. The valve film 10 is pressed against the base film 2 by its restoring force. Note that the end portion 11a of the pressing body and the end portion 10a of the valve film 10 are interposed and fixed between the base film 2 and the cover film, respectively.
上記第３図に示す実施例においては、第１図の実施例と
同様に、密封体１３内と弁士体７内とのガス圧がほぼ等
しい場合には閉塞部材９の弁フィルム１０が基盤フィル
ム２に密接し、従って貫通孔３を通って空間部６内にガ
スは侵入しないが。In the embodiment shown in FIG. 3, as in the embodiment shown in FIG. 2, so that gas does not enter into the space 6 through the through hole 3.
密封体１３内のガス圧が空間部６内のガス圧よりもある
程度高くなると、貫通孔３から弁フィルム１０と基盤フ
ィルム２との間に生じた間隙を通って空間部６内にガス
が流入するようになっている。When the gas pressure in the sealing body 13 becomes higher than the gas pressure in the space 6 to some extent, gas flows into the space 6 from the through hole 3 through the gap created between the valve film 10 and the base film 2. It is supposed to be done.
上記構成のガス抜き用弁１を使用する場合は、第４図に
示したように、享め通気孔１２を所用箇所に形成した密
封体１３に基盤フィルム２を上記通気孔１２とガス流出
用貫通孔３とを連通させた状態で接着するものである（
なお、第４図において基盤フィルム２以外は省略する）
。この場合、接着手段に限定はなく、適宜な接着剤を用
いて取り付けろようにしてもよく、また予め基盤フィル
ム２下面に粘着剤層を設け、この粘着剤によって取り付
けるようにしてもよい。When using the gas venting valve 1 having the above configuration, as shown in FIG. It is to be bonded in a state where it communicates with the through hole 3 (
In addition, in Fig. 4, parts other than base film 2 are omitted)
. In this case, the adhesive means is not limited, and an appropriate adhesive may be used for attachment, or an adhesive layer may be provided on the lower surface of the base film 2 in advance and attachment may be performed using this adhesive.
このようにガス抜き用弁を密封体１３に接着し、密封体
１３内に所用の内容品を充容した場合、内容品からガス
が発生し、密封体１３内が大気圧よりも高圧となると、
このガスが密封体１３の通気孔１２、ガス抜き用弁１の
ガス流出用貫通孔３及び基盤フィルム２と閉塞部材８，
９との間に生じた間隙を通って空間部６内に侵入し、更
に基盤フィルム２とカバーフィルム４との周縁未接着部
から外部に逃散する。従って、密封体１３が内部に充容
した内容品から発生したガスで膨張、破袋する等の不都
合が防止される。この場合、常時は閉塞部材８，９の所
用箇所が基盤フィルム２に密接しているので、外部から
ガス流出用貫通孔３を通って空気などが密封体内に流入
することが殆どなく、外部から密封体１３内への湿気等
の侵入が防止されて、密封体１３が確実に密封状態に維
持される。それ故、この密封体１３内の内容品は吸湿し
たり変質したり等することがなく、密封体１３は炭酸ガ
スを発生する焙焼したコーヒー豆や塩素ガスを発生する
農薬、殺菌剤などの内容品を充容、保存するのに好適に
用いられるものである。なお、この場合貫通孔３周面に
はシリコーンオイル等を塗布してガス抜き用弁の運動を
円滑にすることが好ましい。When the gas vent valve is bonded to the sealing body 13 in this way and the necessary contents are filled in the sealing body 13, gas is generated from the contents and the pressure inside the sealing body 13 becomes higher than atmospheric pressure. ,
This gas flows through the ventilation hole 12 of the sealing body 13, the gas outflow through hole 3 of the degassing valve 1, the base film 2, the closing member 8,
It enters into the space 6 through the gap created between the base film 2 and the cover film 4, and further escapes to the outside from the unbonded peripheral portion of the base film 2 and cover film 4. Therefore, inconveniences such as the sealing body 13 being swollen by gas generated from the contents filled therein and breaking the bag are prevented. In this case, since the required locations of the closing members 8 and 9 are normally in close contact with the base film 2, there is almost no possibility that air or the like will flow into the sealed body from the outside through the gas outflow through holes 3, and from the outside. Intrusion of moisture and the like into the sealing body 13 is prevented, and the sealing body 13 is reliably maintained in a sealed state. Therefore, the contents inside the sealed body 13 do not absorb moisture or change in quality, and the sealed body 13 is suitable for storing roasted coffee beans that generate carbon dioxide gas, pesticides and disinfectants that generate chlorine gas, etc. It is suitably used for filling and preserving contents. In this case, it is preferable to apply silicone oil or the like to the circumferential surface of the through hole 3 to smooth the movement of the gas vent valve.
本発明において、弁主体を構成する基盤フィルム及びカ
バーフィルムの材料に特に制限はないが、例えばポリエ
チレンテレフタレート等のポリエステルフィルム、ポリ
アミドフィルム、ポリ塩化ビニルフィルムなどの合成樹
脂フィルム、アルミニウム箔などの金属箔、その他の非
通気性フィルム等を好適に使用できる。また、基盤フィ
ルム及びカバーフィルムの大きさに限定はないが、通常
外径を２０〜３０ｍｍの範囲とすることが好ましい。In the present invention, there are no particular restrictions on the materials of the base film and cover film that constitute the valve body, but examples include polyester films such as polyethylene terephthalate, synthetic resin films such as polyamide films, and polyvinyl chloride films, and metal foils such as aluminum foil. , other non-breathable films, etc. can be suitably used. Moreover, although there is no limitation on the size of the base film and the cover film, it is usually preferable that the outer diameter is in the range of 20 to 30 mm.
更に、ガス流出用貫通孔の孔径（直径）も制限されない
が、１〜８ｍｍとすることができる。Furthermore, the hole diameter (diameter) of the gas outflow through hole is not limited, but may be 1 to 8 mm.
なお、上記実施例においては、弁主体の空間部に配置す
る閉塞部材として第１〜４図に示す構成のものを用いた
が、閉塞部材はこれらに限られない。例えば、第３図に
示す閉塞部材においては弁フィルムを使用せずに抑圧体
１１の下面で貫通孔３を閉塞するようにしても差支えな
い、また、基盤フィルム２及びカバーフィルム４の形状
は円形に限られず、四角形等の適宜形状に形成できる。In the above embodiments, the closing members having the configurations shown in FIGS. 1 to 4 are used as the closing members disposed in the space of the main body of the valve, but the closing members are not limited to these. For example, in the closing member shown in FIG. 3, the through hole 3 may be closed with the lower surface of the suppressor 11 without using a valve film, and the shape of the base film 2 and cover film 4 is circular. The shape is not limited to this, and can be formed into an appropriate shape such as a rectangle.
なお更に、本発明のその他の構成についても本発明の要
旨の範囲内で種々変更し得る。Furthermore, other configurations of the present invention may be variously modified within the scope of the gist of the present invention.
１刀Ｒυ弧製
以上説明したように、本発明のガス抜き用弁は、微量の
ガスを発生する内容品を充容する密封体等に取り付けら
れて用いられた場合、この密封体等の内部に発生したガ
スを確実に外部に逃散させることができると共に、外部
から密封体等の内部への湿気等の侵入を確実に防止する
ことができるものであり、かつ本発明のガス抜き用弁は
その構成が比較的簡単で容易にしかも安価に製造できろ
という特徴を有する。As explained above, when the degassing valve of the present invention is attached to a sealed body etc. filled with contents that generate a small amount of gas, the inside of this sealed body etc. The gas venting valve of the present invention is capable of reliably dissipating the gas generated in the process to the outside, and is also capable of reliably preventing the intrusion of moisture, etc. from the outside into the inside of the sealing body. Its structure is relatively simple and it can be manufactured easily and at low cost.
第１図は本発明の一実施例を示す断面図、第２図は同側
の平面図、第３図は本発明の他の実施例を示す断面図、
第４図は第１図に示すガス抜き用弁を密封体に取り付け
た状態を示す一部省略断面図である。
１・・・ガス抜き用弁、２・・・基盤フィルム、３・・
・ガス流出用貫通孔、４・・・カバーフィルム、６・・
・空間部、７・・・弁主体、８，９・・・閉塞部材、１
０・・・弁フィル１１．１１出抑圧体。FIG. 1 is a sectional view showing one embodiment of the present invention, FIG. 2 is a plan view of the same side, and FIG. 3 is a sectional view showing another embodiment of the present invention.
FIG. 4 is a partially omitted sectional view showing a state in which the gas venting valve shown in FIG. 1 is attached to a sealing body. 1... Gas vent valve, 2... Base film, 3...
・Gas outflow through hole, 4...Cover film, 6...
・Space part, 7... Valve main body, 8, 9... Closure member, 1
0...Valve fill 11.11 output suppressor.
Claims (1)
封体にこの密封体に形成された通気孔を覆って取り付け
られ、前記内容品から発生する大気圧よりも高圧のガス
を前記通気孔から外部に逃散させるガス抜き用弁におい
て、前記密封体上に接着される基盤に前記通気孔と連通
するガス流出用貫通孔を穿設すると共に、この基盤フィ
ルム及びカバーフィルムの周縁部の一部を互に接着する
ことにより内部に空間部を有すると共に、周縁未接着部
が開口する略装状の弁主体を形成し、この弁主体の上記
空間部内に上記基盤フィルムのガス流出用貫通孔を覆っ
て閉塞する弁フィルムとこの弁フィルムを基盤フィルム
方向に押圧する押圧部とを備えた閉塞部材を配設して、
前記内容品から発生する大気圧よりも高圧のガスを上記
基盤フィルムのガス流出用貫通孔から基盤フィルムと弁
フィルムとの間を通って空間部内に侵入させ、このガス
を基盤フィルムとカバーフィルムとの周縁未接着部から
外部に逃散させるよう構成したことを特徴とするガス抜
き用弁。1. It is attached to a sealed body that is filled with contents that generate a small amount of gas during storage, covering a vent hole formed in this sealed body, and the gas at a pressure higher than atmospheric pressure generated from the contents is supplied to the sealed body. In a gas venting valve that allows gas to escape from a vent to the outside, a through hole for gas outflow that communicates with the vent is provided in a base bonded onto the sealing body, and a through hole for gas outflow communicating with the vent is formed in the base film and the peripheral edge of the cover film. By adhering the parts to each other, a valve main body having an internal space and an opening in the unbonded peripheral portion is formed, and a gas outflow passage of the base film is formed in the space of the valve main body. A closing member is provided that includes a valve film that covers and closes the hole and a pressing portion that presses the valve film toward the base film,
Gas generated from the contents and having a pressure higher than atmospheric pressure is allowed to enter the space through the gas outflow through hole of the base film and between the base film and the valve film, and the gas is transferred between the base film and the cover film. A venting valve characterized in that it is configured to allow gas to escape from an unbonded portion of the periphery to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14884286A JPS636279A (en) | 1986-06-24 | 1986-06-24 | Purge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14884286A JPS636279A (en) | 1986-06-24 | 1986-06-24 | Purge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS636279A true JPS636279A (en) | 1988-01-12 |
Family
ID=15461957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14884286A Pending JPS636279A (en) | 1986-06-24 | 1986-06-24 | Purge valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS636279A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04108002A (en) * | 1990-08-29 | 1992-04-09 | Hino Motors Ltd | Sealing performance improving device for front wheel hub |
-
1986
- 1986-06-24 JP JP14884286A patent/JPS636279A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04108002A (en) * | 1990-08-29 | 1992-04-09 | Hino Motors Ltd | Sealing performance improving device for front wheel hub |
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