JPS6487980A - Seal mechanism - Google Patents
Seal mechanismInfo
- Publication number
- JPS6487980A JPS6487980A JP24431587A JP24431587A JPS6487980A JP S6487980 A JPS6487980 A JP S6487980A JP 24431587 A JP24431587 A JP 24431587A JP 24431587 A JP24431587 A JP 24431587A JP S6487980 A JPS6487980 A JP S6487980A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- seal
- opening
- time
- seal part
- 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
Abstract
PURPOSE:To hold a sealing function preventing a contaminant substance from adhering to a seal part by mounting a dummy O ring, which seals the seal part in the time of opening, to a seal plate, performing opening and closing action between two ports, in addition to an O ring for use in the time of closing. CONSTITUTION:Opening and closing action between ports 12 and 13 is performed by seal plates 31a, 31b, 31c arranged in a casing 11. The seal plates 31a, 31b, 31c are laterally moved by a cylinder shaft 14. An O ring 18, which seals a seal part of the casing 11 in the time of closing, and a dummy O ring, which seals the seal part in the time of opening, are mounted onto the seal plates 31a, 31b, 31c. Thus because the seal part is forced to be attached to the dummy O ring even in the time of opening, the seal part and the O ring are protected from a stain and reactive gas.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24431587A JPS6487980A (en) | 1987-09-30 | 1987-09-30 | Seal mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24431587A JPS6487980A (en) | 1987-09-30 | 1987-09-30 | Seal mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6487980A true JPS6487980A (en) | 1989-04-03 |
Family
ID=17116896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24431587A Pending JPS6487980A (en) | 1987-09-30 | 1987-09-30 | Seal mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6487980A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100505292B1 (en) * | 1999-10-28 | 2005-08-03 | 제일모직주식회사 | Polycarbonate Resin Composition Having High Impact Resistance |
-
1987
- 1987-09-30 JP JP24431587A patent/JPS6487980A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100505292B1 (en) * | 1999-10-28 | 2005-08-03 | 제일모직주식회사 | Polycarbonate Resin Composition Having High Impact Resistance |
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