A telescopic boom extension device (10) includes a driving mechanism. The driving mechanism that drives B pins (26-30) and a C pin (34) includes a hydraulic supply part (18) and a drive source generation part (19). The drive source generation part generates a predetermined hydraulic pressure at the hydraulic supply part based on a pneumatic pressure. The hydraulic supply part has an accumulator and AOHs and supplies a hydraulic pressure to a cylinder-boom coupling mechanism (15) and an inter-boom fixing mechanism (16). The drive source generation part uses a pneumatic supply part (41) to send compressed air to the hydraulic supply part.


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    Title :

    TELESCOPIC BOOM EXTENSION DEVICE


    Additional title:

    TELESKOPISCHE AUSLEGERVERLÄNGERUNGSVORRICHTUNG
    DISPOSITIF DE PROLONGEMENT DE MÂT TÉLESCOPIQUE


    Contributors:

    Publication date :

    2018-09-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



    TELESCOPIC BOOM EXTENSION DEVICE

    KAWABUCHI NAOTO / KAWANO TAKASHI | European Patent Office | 2016

    Free access

    Telescopic boom extension device

    KAWABUCHI NAOTO / KAWANO TAKASHI | European Patent Office | 2017

    Free access

    TELESCOPIC BOOM EXTENSION DEVICE

    KAWABUCHI NAOTO / KAWANO TAKASHI | European Patent Office | 2016

    Free access

    Telescopic boom extension device

    KAWABUCHI NAOTO / KAWANO TAKASHI | European Patent Office | 2017

    Free access

    TELESCOPIC BOOM EXTENSION DEVICE

    KAWABUCHI NAOTO / KAWANO TAKASHI | European Patent Office | 2016

    Free access