PROBLEM TO BE SOLVED: To provide a telescopic jib crane, which can improve transportation efficiency and storage efficiency, be easily exchanged at breakage, and reduce the weight of the crane as a whole.SOLUTION: Two pieces of main materials 4C1 are arranged in parallel with each other, both end parts of the main materials 4C1 are connected to each other by an interval holding member 4C2 to maintain an interval between the main materials 4C1, a panel unit 4C is constituted by arranging a reinforcing material 4C3 so as to be obliquely bridged between the main materials 4C1. The panel unit 4C forms a plurality of pieces of jib blocks having polygonal cross sections by being assembled via a connecting mechanism. A plurality of pieces of the jib blocks are formed so as to be assembled in a nest shape by a stepwise change of areas of the cross sections, and include a slide support mechanism for slidably supporting a plurality of pieces of the jib blocks to a longitudinal direction and a telescopic drive mechanism for telescopically driving a plurality of pieces of the jib blocks.SELECTED DRAWING: Figure 1

    【課題】輸送・保管効率を向上し得、且つ破損時の交換の容易化並びにクレーン全体の軽量化を図り得る伸縮式ジブクレーンを提供する。【解決手段】二本の主材4C1を平行配置し、主材4C1の両端部を間隔保持材4C2によってつないで主材4C1の間隔を保持するようにし、主材4C1の間に斜めに掛け渡すように補強材4C3を配設することにより、パネルユニット4Cを構成し、パネルユニット4Cは、連結機構を介して組付けることにより、多角形断面を有する複数個のジブブロックを形成し、且つ該複数個のジブブロックは、断面の大きさが段階的に変化して入れ子状に組み入れられるよう形成され、複数個のジブブロックを長手方向へスライド自在に支持するスライド支持機構と、複数個のジブブロックを伸縮駆動する伸縮駆動機構とを備える。【選択図】図1


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    Titel :

    TELESCOPIC JIB CRANE


    Weitere Titelangaben:

    伸縮式ジブクレーン


    Beteiligte:
    TANAKA MASAYOSHI (Autor:in) / FUJII TAKAO (Autor:in)

    Erscheinungsdatum :

    2017-12-21


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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