A boom extension and contraction mechanism for a crane apparatus includes: a flow passage switching mechanism that switches a flow passage of the hydraulic oil between the cylinder-to-boom connection switching cylinder side and the boom member connection switching cylinder side; a hose reel configured to reel out a hydraulic hose as a telescopic cylinder is extending, and to reel off the hydraulic hose as the telescopic cylinder is contracting; a cable used to supply power and transmit a signal between a swivel base and a boom; and a cord reel configured to reel out the cable as the telescopic cylinder is extending and to reel off the cable as the telescopic cylinder is contracting. The code reel and the hose reel are arranged on the base in a direction in which the boom extends and contracts.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Boom extension and contraction mechanism for crane apparatus


    Beteiligte:
    MATSUDA MASANORI (Autor:in) / NAGAHAMA KAZU (Autor:in)

    Erscheinungsdatum :

    2017-10-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



    Boom extension and contraction mechanism for crane apparatus

    MATSUDA MASANORI / NAGAHAMA KAZU | Europäisches Patentamt | 2015

    Freier Zugriff

    BOOM EXTENSION AND CONTRACTION MECHANISM FOR CRANE APPARATUS

    MATSUDA MASANORI / NAGAHAMA KAZU | Europäisches Patentamt | 2016

    Freier Zugriff

    Crane boom mechanism and crane

    WEI SHICHI / HUANG XIPING / WU HAILONG | Europäisches Patentamt | 2015

    Freier Zugriff

    BOOM EXTENSION DEVICE OF CRANE

    MATSUMOTO NAOYUKI | Europäisches Patentamt | 2015

    Freier Zugriff

    STS CRANE BOOM EXTENSION SYSTEM AND METHODS

    VAN HAARLEM BERNARD CORNELIS | Europäisches Patentamt | 2018

    Freier Zugriff