JPS59163826U - Automatic opening/closing device for ventilation holes with grating - Google Patents
Automatic opening/closing device for ventilation holes with gratingInfo
- Publication number
- JPS59163826U JPS59163826U JP5666883U JP5666883U JPS59163826U JP S59163826 U JPS59163826 U JP S59163826U JP 5666883 U JP5666883 U JP 5666883U JP 5666883 U JP5666883 U JP 5666883U JP S59163826 U JPS59163826 U JP S59163826U
- Authority
- JP
- Japan
- Prior art keywords
- grating
- packet
- automatic opening
- master bar
- ventilation hole
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のグレーティングを有する換気孔の自動開
閉装置の一例を示す断面図である。第２〜４図は本考案
によるー★施例を示す断面図であり、第２図は平時、第
３図は動作時の状態を示し、第４図ａ、 ｂはシャッ
ター羽の構造の一例を示す部分拡大説明図である。
図面中、１は換気孔、３はグレーティング、３ａはマス
ターバー、６はシャッター羽、７は引張スプリング、９
はパケット支持腕、１０はパケット、１１はロープであ
る。FIG. 1 is a sectional view showing an example of a conventional automatic opening/closing device for ventilation holes having a grating. Figures 2 to 4 are cross-sectional views showing examples of the present invention; Figure 2 shows the normal state, Figure 3 shows the operating state, and Figures 4 a and b show the structure of the shutter blade. It is a partially enlarged explanatory diagram showing an example. In the drawing, 1 is a ventilation hole, 3 is a grating, 3a is a master bar, 6 is a shutter blade, 7 is a tension spring, 9
is a packet support arm, 10 is a packet, and 11 is a rope.
Claims (1)
する水の一部を集積し、単位時間内に流入する水量が一
定量以上になるとこれを貯蓄するパケットを装備するグ
レーティングを有する換気孔の自動開閉装置において、
一端が引張スプリングに他端が前記パケットを支持する
パケット支持腕の途中に固着された一対のロープと、前
記グレーティングの各マスターバーの間にそれぞれ介在
して前記ロープとそれぞれ係合され、平時は前記引張ス
プリングの牽引力によりそれぞれ各マスターバーの内面
に当接しているが、前記パケットに貯蓄する水の重力が
前記引張スプリングの牽引力を上廻ることにより、各マ
スターバーの間を閉塞するとともに、前記パケットに貯
留する水の重力が前記引張スプリングの牽引力を下廻る
ことにより元の状態に復帰する、両側面が円弧状に形成
されたシャッター羽を有するこ゛とを特徴とする、グレ
ーティングを有する換気孔の自動開閉装置。Automatic opening/closing of a ventilation hole with a grating, which is equipped with a packet that collects a portion of the water flowing into the ventilation hole and stores it when the amount of water flowing in within a unit time exceeds a certain amount.The opening is closed with a grating. In the device,
A pair of ropes, one end of which is a tension spring and the other end of which is fixed in the middle of a packet support arm that supports the packet, are interposed between each master bar of the grating and engaged with the rope, respectively. Due to the traction force of the tension springs, each master bar is brought into contact with the inner surface of each master bar, but the gravity of the water stored in the packet exceeds the traction force of the tension springs, thereby closing the space between each master bar, and A ventilation hole having a grating characterized by having shutter blades having arcuate sides on both sides, which return to the original state when the gravity of the water stored in the packet becomes less than the traction force of the tension spring. Automatic opening and closing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5666883U JPS59163826U (en) | 1983-04-18 | 1983-04-18 | Automatic opening/closing device for ventilation holes with grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5666883U JPS59163826U (en) | 1983-04-18 | 1983-04-18 | Automatic opening/closing device for ventilation holes with grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59163826U true JPS59163826U (en) | 1984-11-02 |
Family
ID=30186990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5666883U Pending JPS59163826U (en) | 1983-04-18 | 1983-04-18 | Automatic opening/closing device for ventilation holes with grating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59163826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005351578A (en) * | 2004-06-11 | 2005-12-22 | Chubu Electric Power Co Inc | Ventilating hole cover |
| JP2008308850A (en) * | 2007-06-13 | 2008-12-25 | Kanto Regional Development Bureau Ministry Of Land Infrastructure & Transport | Flooding prevention device for underground structure |
-
1983
- 1983-04-18 JP JP5666883U patent/JPS59163826U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005351578A (en) * | 2004-06-11 | 2005-12-22 | Chubu Electric Power Co Inc | Ventilating hole cover |
| JP2008308850A (en) * | 2007-06-13 | 2008-12-25 | Kanto Regional Development Bureau Ministry Of Land Infrastructure & Transport | Flooding prevention device for underground structure |
| JP4668243B2 (en) * | 2007-06-13 | 2011-04-13 | 国土交通省関東地方整備局長 | Inundation prevention device for underground structures |
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