JPH0342939U - - Google Patents
Info
- Publication number
- JPH0342939U JPH0342939U JP10237389U JP10237389U JPH0342939U JP H0342939 U JPH0342939 U JP H0342939U JP 10237389 U JP10237389 U JP 10237389U JP 10237389 U JP10237389 U JP 10237389U JP H0342939 U JPH0342939 U JP H0342939U
- Authority
- JP
- Japan
- Prior art keywords
- plate
- frame
- shutter plate
- shutter
- air
- 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
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims 2
Landscapes
- Air-Flow Control Members (AREA)
Description
第１図は、本考案の第１実施例のシヤツタ閉鎖
保持装置を備えた換気扇の縦断側面図である。第
２図は、同換気扇の背面図であつて、送風羽根と
その電動機を欠載した図面である。第３図は、同
換気扇の横断平面図である。第４図は、同換気扇
のシヤツタ板開放状態の縦断側面図である。第５
図は、第２実施例のシヤツタ閉鎖保持装置を備え
た換気扇の縦断側面図である。第６図は、同換気
扇の規制板と係止片の部分の横断平面図である。
第７図は、同換気扇のシヤツタ板開放状態の縦断
側面図である。第８図は、第７図のシヤツタ板開
放状態における同換気扇の規制板と係止片の部分
の横断平面図である。
１……枠、２……送風羽根、３……電動機、回
転駆動装置、４……吸気口、５……排気口、６…
…シヤツタ板、８……規制板、１０……係止部、
１１……螺旋ばね、１２……止めピン、１５……
係止片、１８……規制板、２０……係止部、２１
……螺旋ばね、２２……止めピン、２３……係止
片。
FIG. 1 is a longitudinal sectional side view of a ventilation fan equipped with a shutter closing and holding device according to a first embodiment of the present invention. FIG. 2 is a rear view of the ventilation fan, with the blower blades and their electric motors missing. FIG. 3 is a cross-sectional plan view of the ventilation fan. FIG. 4 is a longitudinal sectional side view of the ventilation fan with the shutter plate open. Fifth
The figure is a longitudinal sectional side view of a ventilation fan equipped with a shutter closing and holding device according to a second embodiment. FIG. 6 is a cross-sectional plan view of a regulating plate and a locking piece of the ventilation fan.
FIG. 7 is a longitudinal sectional side view of the ventilation fan with the shutter plate open. 8 is a cross-sectional plan view of the regulating plate and the locking piece of the ventilation fan in the shutter plate open state shown in FIG. 7. FIG. DESCRIPTION OF SYMBOLS 1...Frame, 2...Blower blade, 3...Electric motor, rotary drive device, 4...Intake port, 5...Exhaust port, 6...
... Shutter plate, 8 ... Regulation plate, 10 ... Locking part,
11... spiral spring, 12... retaining pin, 15...
Locking piece, 18...Regulation plate, 20...Locking portion, 21
. . . Spiral spring, 22 . . . Locking pin, 23 . . . Locking piece.
Claims (1)
、枠の一方の開口を吸気口に、他方の開口を排気
口に構成し、送風羽根の回転によつて枠の吸気口
から排気口に送風する構成にし、 枠の排気口を開閉するシヤツタ板を設け、シヤ
ツタ板の上端部を枠に回転可能に取り付け、送風
羽根の回転による送風時にシヤツタ板が風圧で上
方に回動して枠の排気口を開放する構成にし、送
風羽根の回転停止による送風停止時にシヤツタ板
が自重で下方に回動して枠の排気口を閉鎖する構
成にした換気扇において、 枠の内部に、送風時に風圧で回動する規制板を
設け、風圧で回動した規制板を送風停止時に原位
置に復帰させるばね機構を設け、 規制板に係止部を設けて、シヤツタ板に、規制
板の係止部が係合する係止片を取り付け、 送風時に規制板が回動して規制板の係止部がシ
ヤツタ板の係止片から外れてシヤツタ板が開放す
る構成にし、 送風停止時にシヤツタ板が閉鎖して規制板が原
位置に復帰しシヤツタ板の係止片に規制板の係止
部が係合してシヤツタ板の閉鎖状態が保持される
構成にしたシヤツタ閉鎖保持装置。[Scope of Claim for Utility Model Registration] A rotation drive device for the blower blade is installed inside the frame, one opening of the frame is configured as an intake port, and the other opening is configured as an exhaust port, and the rotation of the blower blade causes the rotation of the frame. The structure is such that air is blown from the intake port to the exhaust port, and a shutter plate is provided to open and close the exhaust port of the frame.The upper end of the shutter plate is rotatably attached to the frame, and when the air is blown by the rotation of the blower blades, the shutter plate is moved upward by wind pressure. In a ventilation fan configured to rotate to open the exhaust port in the frame, and when the fan blades stop rotating to stop blowing air, the shutter plate rotates downward under its own weight to close the exhaust port in the frame. A regulation plate is provided that rotates with wind pressure when air is blown, a spring mechanism is provided that returns the regulation plate that rotates with wind pressure to its original position when the airflow stops, and a locking part is provided on the regulation plate, and the regulation plate is attached to the shutter plate. A locking piece that engages with the locking part of the plate is installed, and when air is blown, the regulation plate rotates, the locking part of the regulation plate comes off the locking piece of the shutter plate, and the shutter plate opens, and the air blowing is stopped. This shutter closing/holding device has a structure in which the shutter plate is closed, the regulating plate returns to its original position, and the locking portion of the regulating plate engages with the locking piece of the shutter plate to maintain the closed state of the shutter plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10237389U JPH0342939U (en) | 1989-08-31 | 1989-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10237389U JPH0342939U (en) | 1989-08-31 | 1989-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0342939U true JPH0342939U (en) | 1991-04-23 |
Family
ID=31651273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10237389U Pending JPH0342939U (en) | 1989-08-31 | 1989-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342939U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5328669B2 (en) * | 1973-02-20 | 1978-08-16 |
-
1989
- 1989-08-31 JP JP10237389U patent/JPH0342939U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5328669B2 (en) * | 1973-02-20 | 1978-08-16 |
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