To provide a crane that a trolley can run without damaging a running rope with the movable girder tilted in the crane with a catenary support.SOLUTION: A crane 1 comprises a fixed girder 9, a connecting part 11, a movable girder 13 journaled on the connecting part 11 and rotating upward, a trolley 15 travelling below the fixed girder 9 and the movable girder 13, a first catenary support 31 travelling below the movable girder 13, a first rope 35a to connect the trolley 15 and the connecting part 11 via the first catenary support 31, a first dead sheave 45a provided below the connecting part 11 and orienting a first dead rope 38b toward the first catenary support 31, and a first guide roller 47a adjacent to the first dead sheave 45a in its axial direction at the position where it overlaps with the first running rope 38a in a plan view and provided so that it can rotate independently, and guiding the first running rope 38a only when the movable girder 13 rotates upward.SELECTED DRAWING: Figure 3

    【課題】カテナリサポートを備えるクレーンにおいて、可動桁が傾動した状態でランニングロープを損傷させずにトロリが走行可能なクレーンの提供。【解決手段】固定桁9と、連結部11と、連結部11に軸支され上方に回動する可動桁13と、固定桁9及び可動桁13の下方を走行するトロリ15と、可動桁13の下方を走行する第1カテナリサポート31と、第1カテナリサポート31を経由してトロリ15と連結部11を連結する第1ロープ35aと、連結部11の下方に設けられ、第1デッドロープ38bの向きを第1カテナリサポート31に向ける第1デッドシーブ45aと、第1ランニングロープ38aと平面視で重なる位置で第1デッドシーブ45aにその軸方向に隣接し独立回転可能に設けられ、可動桁13が上方に回動した場合のみ第1ランニングロープ38aをガイドする第1ガイドローラ47aを備えるクレーン1。【選択図】図3


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    Title :

    CRANE AND DISC-SHAPED GUIDE MECHANISM


    Additional title:

    クレーン及び円板状ガイド機構


    Contributors:

    Publication date :

    2021-09-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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