JPH0318660U - - Google Patents

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Publication number
JPH0318660U
JPH0318660U JP7633689U JP7633689U JPH0318660U JP H0318660 U JPH0318660 U JP H0318660U JP 7633689 U JP7633689 U JP 7633689U JP 7633689 U JP7633689 U JP 7633689U JP H0318660 U JPH0318660 U JP H0318660U
Authority
JP
Japan
Prior art keywords
spring
brush
voltage
piezoelectric element
circuit
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
JP7633689U
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 JP7633689U priority Critical patent/JPH0318660U/ja
Publication of JPH0318660U publication Critical patent/JPH0318660U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は本考案に係るブラシ監視装置の一実施
例を示す概略構成図、第2図は従来のブラシ保持
装置を示す概略構成図である。 1……ブラシホルダー、2……ブラシ、4……
コレクタリング、5……スプリング、6……圧電
素子、8……検出装置、9……電圧入力回路、1
0……増幅回路、11……レベル判定回路、12
……設定回路、13……接点出力回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. ブラシホルダーに取付けたコイルバネ構造のス
    プリングと、このスプリングにより回転体に押え
    つけられたブラシとの間に脱着式の圧電素子を取
    付け、前記スプリングの圧力に応じて発生する圧
    電素子の電力変化量を監視し、所定の電圧以下と
    なつた場合に警報を発する回路を具備したことを
    特徴とするブラシ監視装置。
JP7633689U 1989-06-30 1989-06-30 Pending JPH0318660U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7633689U JPH0318660U (ja) 1989-06-30 1989-06-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7633689U JPH0318660U (ja) 1989-06-30 1989-06-30

Publications (1)

Publication Number Publication Date
JPH0318660U true JPH0318660U (ja) 1991-02-25

Family

ID=31617713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7633689U Pending JPH0318660U (ja) 1989-06-30 1989-06-30

Country Status (1)

Country Link
JP (1) JPH0318660U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101243656B1 (ko) * 2006-05-30 2013-03-14 스미도모쥬기가이 파인테크 가부시키가이샤 스퀴징 롤러 및 회전드럼형 자기 분리장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101243656B1 (ko) * 2006-05-30 2013-03-14 스미도모쥬기가이 파인테크 가부시키가이샤 스퀴징 롤러 및 회전드럼형 자기 분리장치

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