JPS62112798U - - Google Patents

Info

Publication number
JPS62112798U
JPS62112798U JP20390185U JP20390185U JPS62112798U JP S62112798 U JPS62112798 U JP S62112798U JP 20390185 U JP20390185 U JP 20390185U JP 20390185 U JP20390185 U JP 20390185U JP S62112798 U JPS62112798 U JP S62112798U
Authority
JP
Japan
Prior art keywords
push rod
fixed electrode
rubber plate
negative pressure
pressure chamber
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
Application number
JP20390185U
Other languages
English (en)
Other versions
JPH0426950Y2 (ja
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 filed Critical
Priority to JP20390185U priority Critical patent/JPH0426950Y2/ja
Publication of JPS62112798U publication Critical patent/JPS62112798U/ja
Application granted granted Critical
Publication of JPH0426950Y2 publication Critical patent/JPH0426950Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)

Description

【図面の簡単な説明】
第1図イはこの考案の実施例の断面図、第1図
ロはその警報回路である。第2図、第3図は圧電
ゴム板と固定電極を示す図、第4図は従来の目詰
まり警報装置の断面図、第5図は圧電ゴムの特性
線図である。 5……ダイヤフラム、6……リテーナ、6a,
16a……押し棒、7,17……圧電ゴム板、8
,18……固定電極、8a,18a……凹部。

Claims (1)

    【実用新案登録請求の範囲】
  1. ケース内が弾性ダイヤフラムにより大気室と負
    圧室に区分され、ダイヤフラムを支持するリテー
    ナの下部に垂下させて押し棒を設け、負圧室内に
    おいて押し棒の下方に圧電ゴム板を介在させて固
    定電極を設け、該固定電極には上面に前記押し棒
    の直径よりも大なる内径の皿状の凹部を設け、か
    つ前記圧電ゴム板と固定電極とが接続された警報
    回路を設けてなる目詰まり警報装置。
JP20390185U 1985-12-28 1985-12-28 Expired JPH0426950Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20390185U JPH0426950Y2 (ja) 1985-12-28 1985-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20390185U JPH0426950Y2 (ja) 1985-12-28 1985-12-28

Publications (2)

Publication Number Publication Date
JPS62112798U true JPS62112798U (ja) 1987-07-17
JPH0426950Y2 JPH0426950Y2 (ja) 1992-06-29

Family

ID=31169665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20390185U Expired JPH0426950Y2 (ja) 1985-12-28 1985-12-28

Country Status (1)

Country Link
JP (1) JPH0426950Y2 (ja)

Also Published As

Publication number Publication date
JPH0426950Y2 (ja) 1992-06-29

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