To provide a contact prevention device of a telescopic boom capable of accurately and precisely detecting an obstacle, which hinders the movement of the telescopic boom.SOLUTION: A contact prevention device of a telescopic boom includes: a telescopic boom with a base end connected to a base machine to be raised/lowered, rotatable, and extendable/contractible; a boom length measurement device measuring a boom length of the telescopic boom; a measurement region sensor detecting an obstacle existing in a detection region set along the telescopic boom; detection region setting means changing and setting a detection region of the measurement region sensor based on the boom length measured by the boom length measurement device; and telescopic boom operation suppression means receiving an obstacle detection signal from the measurement region sensor to suppress the operation of the telescopic boom.SELECTED DRAWING: Figure 1

    【課題】 本発明は、伸縮ブームの動きに対して障害となる障害物の検知を精度よく且つ正確に行なうことができる伸縮ブームの接触防止装置を提供する。【解決手段】 本発明の伸縮ブームの接触防止装置は、ベースマシンに起伏、旋回及び伸縮可能に基端が接続された伸縮ブームと、上記伸縮ブームのブーム長を測定するブーム長測定装置と、上記伸縮ブームに沿って設定された検知領域内に存在する障害物を検知する測域センサと、上記ブーム長測定装置によって測定されたブーム長に基づいて上記測域センサの検知領域を変更、設定する検知領域設定手段と、上記測域センサからの障害物検知信号を受信して上記伸縮ブームの動作を抑制させる伸縮ブーム動作抑制手段とを備えていることを特徴とする。【選択図】 図1


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    Title :

    CONTACT PREVENTION DEVICE OF TELESCOPIC BOOM


    Additional title:

    伸縮ブームの接触防止装置


    Contributors:

    Publication date :

    2022-07-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / B66C Krane , CRANES



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