A collapsible hoist apparatus includes a lower boom assembly, a middle boom assembly, and an upper boom assembly, the boom assemblies consisting of two parallel boom arms and a transversal crossbeam, and are connected to one another by a pivotal annular support. The annular support allows the complete boom assembly to be placed in a first extended position, such that the boom assemblies extend outwardly, aligned in a pleated configuration; a fully extended position, such that the boom assemblies extend outwardly, aligned in a planar configuration; or a closed storage position, such that the boom assemblies extend inwardly, aligned in a pleated configuration.


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    Titel :

    Collapsible hoisting apparatus


    Beteiligte:

    Erscheinungsdatum :

    02.05.2017


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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