JPH0389097U - - Google Patents

Info

Publication number
JPH0389097U
JPH0389097U JP14991489U JP14991489U JPH0389097U JP H0389097 U JPH0389097 U JP H0389097U JP 14991489 U JP14991489 U JP 14991489U JP 14991489 U JP14991489 U JP 14991489U JP H0389097 U JPH0389097 U JP H0389097U
Authority
JP
Japan
Prior art keywords
inspection
prevention device
moment
overload prevention
boom
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
JP14991489U
Other languages
English (en)
Other versions
JPH0721504Y2 (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 JP14991489U priority Critical patent/JPH0721504Y2/ja
Publication of JPH0389097U publication Critical patent/JPH0389097U/ja
Application granted granted Critical
Publication of JPH0721504Y2 publication Critical patent/JPH0721504Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Description

【図面の簡単な説明】
第１図は、本考案に係る点検ユニツトを備えた
過負荷防止装置の概略図、第２図は、上記過負荷
防止装置を備えた高所作業車の斜視図である。 ５…ブーム、６…起伏シリンダ、１１…起伏セ
ンサ、１２…伸長センサ、１３…旋回センサ、１
４…ロードセル、１５…コントローラ、１６…点
検スイツチ。

Claims (1)

  1. 【実用新案登録請求の範囲】 ブームを備えた作業装置の過負荷作動を防止す
    べく前記ブームの作動を規制する過負荷防止装置
    において、 前記作業装置の実モーメントを検出するモーメ
    ント検出手段と、 前記過負荷防止装置を点検用作動状態に切換え
    る点検スイツチと、 前記実モーメントの定格モーメントに対する比
    率が所定比率となつたときに、前記ブームの作動
    規制を行わせるコントローラとからなり、 このコントローラを、前記点検スイツチがオン
    されたときは、前記所定比率を通常作動時よりも
    引き下げるよう構成したことを特徴とする点検機
    構付過負荷防止装置。
JP14991489U 1989-12-26 1989-12-26 点検機構付過負荷防止装置 Expired - Lifetime JPH0721504Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14991489U JPH0721504Y2 (ja) 1989-12-26 1989-12-26 点検機構付過負荷防止装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14991489U JPH0721504Y2 (ja) 1989-12-26 1989-12-26 点検機構付過負荷防止装置

Publications (2)

Publication Number Publication Date
JPH0389097U true JPH0389097U (ja) 1991-09-11
JPH0721504Y2 JPH0721504Y2 (ja) 1995-05-17

Family

ID=31696287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14991489U Expired - Lifetime JPH0721504Y2 (ja) 1989-12-26 1989-12-26 点検機構付過負荷防止装置

Country Status (1)

Country Link
JP (1) JPH0721504Y2 (ja)

Also Published As

Publication number Publication date
JPH0721504Y2 (ja) 1995-05-17

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