To provide a moment limiter device for a boom work machine capable of improving the flexibility in installation of an outrigger supporting the boom work machine and reducing the occurrence of erroneous operation due to a lack of recognition of an operator about the use of a special operation mode by which the operation can be performed at a deployment attitude including a deployment angle of inhibition of installation.SOLUTION: The moment limiter device is mounted on a tower crane including an outrigger freely deployable and extendable around a machine body. The moment limiter device includes a special operation mode that is an operation mode allowing the completion of installation operation of the outrigger at a special deployment attitude including a deployment angle with an extremely high possibility of turnover due to erroneous operation and the like of an operator and allowing the use of a boom after the completion of installation. The moment limiter device performs processing of confirming whether or not the operator intends to use the special operation mode after the outrigger is deployed and fixed and switches a mode to the special operation mode only when it is confirmed that the operator has an intention to use the special operation mode.SELECTED DRAWING: Figure 6

    【課題】ブーム作業機を支持するアウトリガの設置自由度を向上可能で且つ設置禁止の展開角度を含む展開姿勢で作業可能な特殊な操作モードの使用について作業者の認識不足による誤操作の発生を低減することが可能なブーム作業機用モーメントリミッタ装置を提供する。【解決手段】このモーメントリミッタ装置は、機体の周囲に自在に展開且つ張り出し可能なアウトリガを備えたタワークレーンに装備され、作業者の誤操作等によって転倒可能性の非常に高い展開角度を含む特殊展開姿勢でのアウトリガの設置動作の完了を許可すると共に設置完了後にブームの使用を許可する操作モードである特殊操作モードを有し、アウトリガの展開且つ固定後に、作業者に対して、特殊操作モードを使用する意思があるか否かを確認する処理を行い、使用する意思があると確認できたと判定したときのみに特殊操作モードに切り替える。【選択図】図6


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    Title :

    MOMENT LIMITER DEVICE FOR BOOM WORK MACHINE AND BOOM WORK MACHINE INCLUDING THE SAME


    Additional title:

    ブーム作業機用モーメントリミッタ装置及びこれを備えたブーム作業機


    Contributors:

    Publication date :

    2019-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES




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