JPS52118838A - Apparatus of opening and closing shutter for ventilating fans - Google Patents
Apparatus of opening and closing shutter for ventilating fansInfo
- Publication number
- JPS52118838A JPS52118838A JP3445876A JP3445876A JPS52118838A JP S52118838 A JPS52118838 A JP S52118838A JP 3445876 A JP3445876 A JP 3445876A JP 3445876 A JP3445876 A JP 3445876A JP S52118838 A JPS52118838 A JP S52118838A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- closing shutter
- ventilating fans
- shutter
- connecting rod
- 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 prevent a play of the shutter when it is opened by connection thereof with a connecting rod through a play hole with a groove of the shutter engaged with a projection of the connecting rod in such a manner that the shutter is locked remaining open.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3445876A JPS52118838A (en) | 1976-03-31 | 1976-03-31 | Apparatus of opening and closing shutter for ventilating fans |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3445876A JPS52118838A (en) | 1976-03-31 | 1976-03-31 | Apparatus of opening and closing shutter for ventilating fans |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52118838A true JPS52118838A (en) | 1977-10-05 |
Family
ID=12414797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3445876A Pending JPS52118838A (en) | 1976-03-31 | 1976-03-31 | Apparatus of opening and closing shutter for ventilating fans |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52118838A (en) |
-
1976
- 1976-03-31 JP JP3445876A patent/JPS52118838A/en active Pending
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