JPS55116036A - Ventilating device - Google Patents
Ventilating deviceInfo
- Publication number
- JPS55116036A JPS55116036A JP2219079A JP2219079A JPS55116036A JP S55116036 A JPS55116036 A JP S55116036A JP 2219079 A JP2219079 A JP 2219079A JP 2219079 A JP2219079 A JP 2219079A JP S55116036 A JPS55116036 A JP S55116036A
- Authority
- JP
- Japan
- Prior art keywords
- blower
- room
- ventilating door
- air duct
- opened
- 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
Abstract
PURPOSE: To prevent infiltration of dust wind from the outside by closing an air duct by a ventilating door when the air pressure outside the room increases and to stop the blower.
CONSTITUTION: A through hole having a grid 6 is provided at the wall 3 of a room 1, and an air duct 8 is formed at the inner side of the through hole 4. A blower 9 is provided at the room inner side end of the air duct 8, and a ventilating door 11 is provided at the downstream of the blower 9. The ventilating door 11 is opened by the blowing from the blower 9 to carry out the ventilation. When the blower 9 is stopped, the ventilating door 11 is suspended down by the dead weight but the air duct 8 is opened. When the outside air pressure is higher than the pressure within the room, the ventilating door 11 is closed by the air pressure, and, at the same time, a switch 10 is opened to stop the blower 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2219079A JPS55116036A (en) | 1979-02-26 | 1979-02-26 | Ventilating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2219079A JPS55116036A (en) | 1979-02-26 | 1979-02-26 | Ventilating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55116036A true JPS55116036A (en) | 1980-09-06 |
JPS615573B2 JPS615573B2 (en) | 1986-02-19 |
Family
ID=12075871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2219079A Granted JPS55116036A (en) | 1979-02-26 | 1979-02-26 | Ventilating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55116036A (en) |
-
1979
- 1979-02-26 JP JP2219079A patent/JPS55116036A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS615573B2 (en) | 1986-02-19 |
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