JPS5565852A - Ventilation fan - Google Patents
Ventilation fanInfo
- Publication number
- JPS5565852A JPS5565852A JP13791078A JP13791078A JPS5565852A JP S5565852 A JPS5565852 A JP S5565852A JP 13791078 A JP13791078 A JP 13791078A JP 13791078 A JP13791078 A JP 13791078A JP S5565852 A JPS5565852 A JP S5565852A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- power source
- shutter
- source switch
- turning
- 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 accomplish a higher reliability of the motor halting mechanism during the closure of the shutter by turning on the normal switching action of the switch for cutting the power supply of the motor in response to the closure of the shutter ahead of the main power source switch and turning thereof off following the power source switch.
CONSTITUTION: A temperature fuse 5 is provided in a mechanism of connecting a power source switch 7 and a shutter 13 to automatically close the shutter 13 when encountering an abnormally high temperature. In a ventilation fan of such a type, a lead switch 10 is connected in series to the power source switch 7 in such a manner that the lead switch 10 turns on by t1 seconds ahead of the power source switch 7 while turning off by t2 seconds following thereof in the normal operation. With such an arrangement, since the lead switch 10 in no way affects the opening or closing of the running current of the motor 3, the lead switch 10 can secure a sufficient reliability and life even of a limited capacity.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13791078A JPS5565852A (en) | 1978-11-10 | 1978-11-10 | Ventilation fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13791078A JPS5565852A (en) | 1978-11-10 | 1978-11-10 | Ventilation fan |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5565852A true JPS5565852A (en) | 1980-05-17 |
JPS6152889B2 JPS6152889B2 (en) | 1986-11-15 |
Family
ID=15209531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13791078A Granted JPS5565852A (en) | 1978-11-10 | 1978-11-10 | Ventilation fan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5565852A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5123875A (en) * | 1991-04-12 | 1992-06-23 | Eubank Manufacturing Enterprises, Inc. | Power actuated roof vent apparatus and method of use |
-
1978
- 1978-11-10 JP JP13791078A patent/JPS5565852A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5123875A (en) * | 1991-04-12 | 1992-06-23 | Eubank Manufacturing Enterprises, Inc. | Power actuated roof vent apparatus and method of use |
Also Published As
Publication number | Publication date |
---|---|
JPS6152889B2 (en) | 1986-11-15 |
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