JPS63165427U - - Google Patents
Info
- Publication number
- JPS63165427U JPS63165427U JP5951987U JP5951987U JPS63165427U JP S63165427 U JPS63165427 U JP S63165427U JP 5951987 U JP5951987 U JP 5951987U JP 5951987 U JP5951987 U JP 5951987U JP S63165427 U JPS63165427 U JP S63165427U
- Authority
- JP
- Japan
- Prior art keywords
- ventilation passage
- temperature
- damper plate
- room temperature
- open state
- 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 4
- 230000002159 abnormal effect Effects 0.000 claims 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
Description
第１図はこの考案の防火形ウエザーカバーの一
実施例を示す垂直断面図、第２図は従来のウエザ
ーカバーを示す同様の垂直断面図である。
なお図中３はカバー本体、４はダンパープレー
ト、５は通風路、１０は駆動体である。その他図
中同一符号は同一部分を示すものとする。
FIG. 1 is a vertical cross-sectional view showing one embodiment of the fireproof weather cover of this invention, and FIG. 2 is a similar vertical cross-sectional view showing a conventional weather cover. In the figure, 3 is a cover body, 4 is a damper plate, 5 is a ventilation passage, and 10 is a driving body. In other figures, the same reference numerals indicate the same parts.
Claims (1)
ートを、上記カバー本体に取付けられ所定の変態
温度を有する形状記憶合金製駆動体により、常温
で上記通風路の開放状態に保持すると共に、この
通風路の異常上昇温度で上記のダンパープレート
を通風路の閉塞状態に変移させるようにしたこと
を特徴とする防火形ウエザーカバー。 A damper plate that opens and closes the ventilation passage inside the cover body is held in an open state at room temperature by a shape memory alloy drive body that is attached to the cover body and has a predetermined transformation temperature, and also maintains the ventilation passage in an open state at room temperature. A fireproof weather cover characterized in that the damper plate changes to a state in which the ventilation passage is blocked in the event of an abnormal rise in temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5951987U JPS63165427U (en) | 1987-04-20 | 1987-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5951987U JPS63165427U (en) | 1987-04-20 | 1987-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63165427U true JPS63165427U (en) | 1988-10-27 |
Family
ID=30891086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5951987U Pending JPS63165427U (en) | 1987-04-20 | 1987-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63165427U (en) |
-
1987
- 1987-04-20 JP JP5951987U patent/JPS63165427U/ja active Pending
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