JPH02105877U - - Google Patents
Info
- Publication number
- JPH02105877U JPH02105877U JP1289189U JP1289189U JPH02105877U JP H02105877 U JPH02105877 U JP H02105877U JP 1289189 U JP1289189 U JP 1289189U JP 1289189 U JP1289189 U JP 1289189U JP H02105877 U JPH02105877 U JP H02105877U
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- flow pipe
- vacuum packaging
- check valve
- flow
- 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.)
- Granted
Links
- 238000009461 vacuum packaging Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 229920006255 plastic film Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Packages (AREA)
- Check Valves (AREA)
Description
図面は本考案の実施例を示すもので、第１図は
斜視図、第２図は第１図のＡ―Ａ線に沿つた拡大
断面図、第３図は逆止弁の解体斜視図、第４図は
逆止弁の使用状態を示す一部省略説明図、第５図
は真空包装を完了した状態の一部省略部分図、第
６図は第５図の要部における拡大断面図、第７図
のイは逆止弁における流体流通用の間隙の開通状
態を示す一部省略拡大断面図、第７図のロは該間
隙の密閉状態を示す一部省略拡大断面図である。
（符号の説明）、１…流通管、２…弁本体、３
…過体、４…閉塞部、５…開放部、６…接着部
、７…過孔、１０…間隙、１１…接着部、Ｆ１
，Ｆ２，Ｆ３…プラスチツクフイルム、Ｆ１ａ…
遊離端縁、Ｖ…逆止弁。
The drawings show an embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is an enlarged sectional view taken along line AA in FIG. 1, and FIG. 3 is an exploded perspective view of a check valve. FIG. 4 is a partially omitted explanatory diagram showing the state in which the check valve is used, FIG. 5 is a partially omitted partial diagram of the state in which vacuum packaging is completed, and FIG. 6 is an enlarged sectional view of the main part of FIG. 5. A in FIG. 7 is a partially omitted enlarged sectional view showing the open state of the gap for fluid circulation in the check valve, and B in FIG. 7 is a partially omitted enlarged sectional view showing the gap in the sealed state. (Explanation of symbols), 1...Flow pipe, 2...Valve body, 3
... Overbody, 4... Closed part, 5... Open part, 6... Adhesive part, 7... Through hole, 10... Gap, 11... Adhesive part, F 1
, F 2 , F 3 ... plastic film, F 1a ...
Free edge, V...check valve.
Claims (1)
両側縁を接着して形成した扁平な流体の流通管と
、該流通管内に装設した少なくとも一つの弁本体
と、該流通管の先端側に設けた所要の大きさの
過孔を有する過体とから構成されており、上記
弁本体は、流体の流通方向において、下端側に閉
塞部を備えると共に上端側に開放部を備えた扁平
なプラスチツクフイルムの二つ折り折曲片から成
り、且つ、この弁本体の両側縁は上記流通管の両
側縁に夫々接着されていて、該流通管の両内側面
と弁本体の両外側面との間に夫々形成された間隙
を介して流体の流通が可能に構成されており、更
に、流通管の少なくとも一方のプラスチツクフイ
ルムの上端部の所要長さは弁本体から遊離されて
いて、遊離端縁が形成されており、また、流通管
の先端側の内部と外部は上記過体のみを介して
連通されていることを特徴とする真空包装袋用逆
止弁。 (2) 過体が気体のみを通過させる微細な過
孔を備えていることを特徴とする請求項(1)に記
載の真空包装袋用逆止弁。 (3) 過体が気体及び液体のみを通過させる
過孔を備えていることを特徴とする請求項(1)に
記載の真空包装袋用逆止弁。 (4) 流通管のプラスチツクフイルムの遊離端縁
の長さが弁本体の上端縁よりも短く形成されてい
て、弁本体の上端部が上記遊離端縁から突出され
ていることを特徴とする請求項(1)に記載の真空
包装袋用逆止弁。[Claims for Utility Model Registration] (1) A flat fluid flow pipe formed by bonding both side edges of two rectangular plastic films, and at least one valve body installed within the flow pipe; The valve body has a through hole of a required size provided at the distal end of the flow pipe, and the valve body has a closed portion at the lower end and is open at the upper end in the fluid flow direction. The valve body is made of a bi-folded piece of flat plastic film with a section, and both side edges of the valve body are adhered to both side edges of the flow pipe, so that both inner surfaces of the flow pipe and the valve body are bonded to each other. The valve body is configured to allow fluid to flow through gaps formed between the two outer surfaces, and furthermore, the upper end of at least one of the flow pipes is separated from the valve body by a required length. A check valve for a vacuum packaging bag, characterized in that a free edge is formed at the top of the flow pipe, and the inside and outside of the distal end side of the flow pipe are communicated only through the overbody. (2) The check valve for a vacuum packaging bag according to claim (1), wherein the overbody is provided with fine holes that allow only gas to pass through. (3) The check valve for a vacuum packaging bag according to claim (1), wherein the overbody is provided with a hole that allows only gas and liquid to pass through. (4) A claim characterized in that the length of the free edge of the plastic film of the flow pipe is shorter than the upper edge of the valve body, and the upper end of the valve body protrudes from the free edge. The check valve for vacuum packaging bags described in item (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1289189U JPH0619499Y2 (en) | 1989-02-06 | 1989-02-06 | Check valve for vacuum packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1289189U JPH0619499Y2 (en) | 1989-02-06 | 1989-02-06 | Check valve for vacuum packaging bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02105877U true JPH02105877U (en) | 1990-08-22 |
| JPH0619499Y2 JPH0619499Y2 (en) | 1994-05-25 |
Family
ID=31222737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1289189U Expired - Lifetime JPH0619499Y2 (en) | 1989-02-06 | 1989-02-06 | Check valve for vacuum packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619499Y2 (en) |
-
1989
- 1989-02-06 JP JP1289189U patent/JPH0619499Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619499Y2 (en) | 1994-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |