A crawler crane includes: a seating switch that detects whether an operator is in a driver seat; a turn angle potentiometer that detects the turn position of a boom; and a controller. The controller is provided with a boom turn restriction control unit for performing a boom turn-restricting control whereby the boom is not allowed to turn within a predetermined angular range above the driver seat on the basis of the output from the turn angle potentiometer. The boom turn restriction control unit includes a restriction-canceling unit that cancels the boom turn-restricting control performed by a turn-restricting unit if a preset restriction-canceling condition is met. The boom turn restriction control unit cancels the boom turn-restricting control if the seating switch does not detect an operator. Ease of operation and work can thus be improved in a remote operation mode and the like.


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    Titel :

    Mobile crane


    Beteiligte:
    TOKUTOME SHINYA (Autor:in) / TOMURA TATSUFUMI (Autor:in) / NAKAMURA RYOSUKE (Autor:in) / ICHIMURA EIJI (Autor:in) / WADA MITSUAKI (Autor:in)

    Erscheinungsdatum :

    2021-04-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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