JPH041472U - - Google Patents

Info

Publication number
JPH041472U
JPH041472U JP4144790U JP4144790U JPH041472U JP H041472 U JPH041472 U JP H041472U JP 4144790 U JP4144790 U JP 4144790U JP 4144790 U JP4144790 U JP 4144790U JP H041472 U JPH041472 U JP H041472U
Authority
JP
Japan
Prior art keywords
potentiometer
voltage
abnormality
detecting
detection device
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
JP4144790U
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 JP4144790U priority Critical patent/JPH041472U/ja
Publication of JPH041472U publication Critical patent/JPH041472U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Control And Safety Of Cranes (AREA)
  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Control Of Position Or Direction (AREA)

Description

【図面の簡単な説明】
第1図は、本考案に係るポテンシヨメータ異常
検出装置を備えた高所作業車の斜視図、第2図は
、上記ポテンシヨメータ異常検出装置のブロツク
図である。 4……ブーム、11……起伏センサ、12……
伸長センサ、13……旋回センサ、PM……ポテ
ンシヨメータ、40……過負荷防止装置。

Claims (1)

  1. 【実用新案登録請求の範囲】 作業装置の作動量を検出するポテンシヨメータ
    の異常を検出するためのポテンシヨメータ異常検
    出装置であつて、 前記ポテンシヨメータに所定電流を供給する定
    電流供給手段と、 前記ポテンシヨメータにおける前記所定電流の
    流入端子側と流出端子側間の電圧を検出する電圧
    検出手段と、 前記電圧検出手段により検出された電圧が所定
    電圧範囲外となつたときに、前記ポテンシヨメー
    タを異常と判定する異常判定手段とからなること
    を特徴とするポテンシヨメータ異常検出装置。
JP4144790U 1990-04-18 1990-04-18 Pending JPH041472U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4144790U JPH041472U (ja) 1990-04-18 1990-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4144790U JPH041472U (ja) 1990-04-18 1990-04-18

Publications (1)

Publication Number Publication Date
JPH041472U true JPH041472U (ja) 1992-01-08

Family

ID=31552121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4144790U Pending JPH041472U (ja) 1990-04-18 1990-04-18

Country Status (1)

Country Link
JP (1) JPH041472U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000289998A (ja) * 1999-03-31 2000-10-17 Tadano Ltd ブーム式作業車の異常検出装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000289998A (ja) * 1999-03-31 2000-10-17 Tadano Ltd ブーム式作業車の異常検出装置

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