JPS60141859U - fire damper - Google Patents

fire damper

Info

Publication number
JPS60141859U
JPS60141859U JP3075584U JP3075584U JPS60141859U JP S60141859 U JPS60141859 U JP S60141859U JP 3075584 U JP3075584 U JP 3075584U JP 3075584 U JP3075584 U JP 3075584U JP S60141859 U JPS60141859 U JP S60141859U
Authority
JP
Japan
Prior art keywords
damper
closes
fire prevention
fire damper
ventilation duct
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
Application number
JP3075584U
Other languages
Japanese (ja)
Inventor
哲也 門馬
Original Assignee
シャープ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to JP3075584U priority Critical patent/JPS60141859U/en
Publication of JPS60141859U publication Critical patent/JPS60141859U/en
Pending legal-status Critical Current

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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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案実施例の側面断面図、第２図は、同上
縦断面図、第３図は、同上側面図。　　・１：ダクト、
２：ダンパー、５：形状記憶合金のバネ（ＳＭＡコイル
）、６：操作レバー、７：磁　　石。　　　　、−−゛FIG. 1 is a side sectional view of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the same, and FIG. 3 is a side view of the same.・1: Duct,
2: Damper, 5: Shape memory alloy spring (SMA coil), 6: Operation lever, 7: Magnet. ,−−゛

Claims (1)

【実用新案登録請求の範囲】 １　通気ダクトを開閉するダンパーと、この通気ダクト
内が一定温度以上になれば上記ダンパーを駆動してダク
トを閉鎖する形状記憶合金のバネと、から成るものにお
いて、 通常時に上記ダンパーを開成状態に保つ保持、　　　　
手段を、保持解除自在に設けたことを特徴とする防火ダ
ンパー。　　　　　　　　　　　、２　上記保持手段は
、磁石であることを特徴と子る実用新案登録請求の範囲
第１項記載の防火ダンパー。　１[Claims for Utility Model Registration] 1. A damper that opens and closes a ventilation duct, and a shape memory alloy spring that drives the damper and closes the duct when the temperature inside the ventilation duct exceeds a certain level, Maintaining the damper in the open state during normal times;
A fire prevention damper characterized in that a means is provided to allow holding and releasing. , 2. The fire prevention damper according to claim 1, wherein the holding means is a magnet. 1
JP3075584U 1984-02-29 1984-02-29 fire damper Pending JPS60141859U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3075584U JPS60141859U (en) 1984-02-29 1984-02-29 fire damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3075584U JPS60141859U (en) 1984-02-29 1984-02-29 fire damper

Publications (1)

Publication Number Publication Date
JPS60141859U true JPS60141859U (en) 1985-09-19

Family

ID=30530732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3075584U Pending JPS60141859U (en) 1984-02-29 1984-02-29 fire damper

Country Status (1)

Country Link
JP (1) JPS60141859U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4817103U (en) * 1971-07-07 1973-02-26
JPS5848262B2 (en) * 1980-12-17 1983-10-27 宮川金属工業株式會社 Manufacturing method for parts with ears such as butterfly nuts

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4817103U (en) * 1971-07-07 1973-02-26
JPS5848262B2 (en) * 1980-12-17 1983-10-27 宮川金属工業株式會社 Manufacturing method for parts with ears such as butterfly nuts

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