JPS5610637A - Ventilating fan - Google Patents
Ventilating fanInfo
- Publication number
- JPS5610637A JPS5610637A JP8618779A JP8618779A JPS5610637A JP S5610637 A JPS5610637 A JP S5610637A JP 8618779 A JP8618779 A JP 8618779A JP 8618779 A JP8618779 A JP 8618779A JP S5610637 A JPS5610637 A JP S5610637A
- Authority
- JP
- Japan
- Prior art keywords
- suction port
- airflow
- regulating plate
- clearance
- fixed suction
- 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
Landscapes
- Ventilation (AREA)
Abstract
PURPOSE: To prevent noise by a method wherein an airflow regulating plate fitted with a movable suction port is arranged on the opposite side of a fan relative to a fixed suction port in such a manner that it can freely slide in the axial direction of a motor, and an airflow is introduced either from the movable suction port alone or from both the movable suction port and the clearance between the regulating plate and the fixed suction port.
CONSTITUTION: With an airflow regulating plate 8 contacted with a fixed suction port 5, the air flows in only from an opening hole 9 so that the amount of airflow is minimum. With the airflow regulating plate 8 gradually parted away from the fixed suction port 5, the clearance 15 is enlarged and the amount of air flowing is increased, the maximum airflow being attained when the clearance 15 is maximum. The regulating plate 8 is adjusted by operating a knob 11. Accordingly, since any small passage is not formed at the time of airflow regulation, greater noise is avoided and failure of regulation due to missing of parts is avoided.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8618779A JPS6038619B2 (en) | 1979-07-06 | 1979-07-06 | ventilation fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8618779A JPS6038619B2 (en) | 1979-07-06 | 1979-07-06 | ventilation fan |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5610637A true JPS5610637A (en) | 1981-02-03 |
JPS6038619B2 JPS6038619B2 (en) | 1985-09-02 |
Family
ID=13879755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8618779A Expired JPS6038619B2 (en) | 1979-07-06 | 1979-07-06 | ventilation fan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6038619B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62189824U (en) * | 1986-05-22 | 1987-12-03 |
-
1979
- 1979-07-06 JP JP8618779A patent/JPS6038619B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6038619B2 (en) | 1985-09-02 |
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