A crane includes a jib posture retention device that retains a jib in a frontward tilt posture to a boom. The jib posture retention device includes a jib mast that holds a rope connection part at a tensioning position separate from a jib proximal end and a boom distal end backward thereof to render a jib-side support rope and a boom-side support rope linearly tensioned with the jib in the frontward tilt posture. The jib mast is shiftable to a tension form of holding the rope connection part at a tensioning position in an uprise posture and a looseness allowing form of locating the rope connection part at a looseness allowing position closer to the boom distal end than the tensioning position and closer to the jib proximal end than the tensioning position to allow the jib-side support rope and the boom-side support rope to be loosened.


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    Titel :

    CRANE, CRANE ASSEMBLY METHOD AND DISASSEMBLY METHOD


    Beteiligte:
    NAKATSUKA KENICHI (Autor:in) / SUMIMOTO KOJI (Autor:in) / KURIHARA SHINGO (Autor:in) / ETO TAKAO (Autor:in) / WAMATA TSUKASA (Autor:in) / TAKAOKA DAISUKE (Autor:in) / WATANABE TAKUYA (Autor:in) / IKAWA TEPPEI (Autor:in) / HAMAGUCHI HIROMITSU (Autor:in) / KOIZUMI YUKIO (Autor:in)

    Erscheinungsdatum :

    02.11.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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