JPS63140981U - - Google Patents

Info

Publication number
JPS63140981U
JPS63140981U JP3275987U JP3275987U JPS63140981U JP S63140981 U JPS63140981 U JP S63140981U JP 3275987 U JP3275987 U JP 3275987U JP 3275987 U JP3275987 U JP 3275987U JP S63140981 U JPS63140981 U JP S63140981U
Authority
JP
Japan
Prior art keywords
magnetic field
bias magnetic
alarm
permanent magnet
activates
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
JP3275987U
Other languages
English (en)
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 JP3275987U priority Critical patent/JPS63140981U/ja
Publication of JPS63140981U publication Critical patent/JPS63140981U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Pinball Game Machines (AREA)
  • Viewfinders (AREA)

Description

【図面の簡単な説明】
第1図、第2図は本考案の実施例を示す回路構
成図とそのセンサ部の構成図である。 1,2……リードスイツチ、3……永久磁石、
7……警報回路、8……警報器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 磁気により作動する2つのリードスイツチを、
    永久磁石によるバイアス磁界中にそれぞれ逆方向
    にバイアス磁界がかかるように配置すると共に、
    このリードスイツチの導通により警報器を作動さ
    せる警報回路を設けたことを特徴とする磁気検出
    器。
JP3275987U 1987-03-06 1987-03-06 Pending JPS63140981U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3275987U JPS63140981U (ja) 1987-03-06 1987-03-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3275987U JPS63140981U (ja) 1987-03-06 1987-03-06

Publications (1)

Publication Number Publication Date
JPS63140981U true JPS63140981U (ja) 1988-09-16

Family

ID=30839745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3275987U Pending JPS63140981U (ja) 1987-03-06 1987-03-06

Country Status (1)

Country Link
JP (1) JPS63140981U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230869U (ja) * 1975-08-26 1977-03-04
JPS5414835A (en) * 1977-07-05 1979-02-03 Toshiyoshi Ishii Device of detecting magnet in pinball machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230869U (ja) * 1975-08-26 1977-03-04
JPS5414835A (en) * 1977-07-05 1979-02-03 Toshiyoshi Ishii Device of detecting magnet in pinball machine

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