PROBLEM TO BE SOLVED: To provide a boom attaching method in crane assembly, by which a boom can be coupled to a crane body by its being suspended by a boom suspender without being placed on the ground so that a boom attaching part of an upper revolving body is positioned in the longitudinal direction of the boom, and to provide a boom suspender used for a crane, and a crane with a boom suspender.SOLUTION: A boom suspender 6 comprises a spreader-side fixable part 7 and a boom-side fixable part 8 that are rotatable with respect to each other. A crane comprises a boom 3 and a first pushing member that raises/lays the boom 3. The first pulling member has a boom lifting/laying rope 22 wound between a second spreader 23 and a first spreader provided at the leading end of a mast. The boom 3 is placed on the ground in an arbitrary orientation and the spreader-side fixable part 7 is fixed to the second spreader 23. The boom-side fixable part 8 is fixed to the suspender fixing part of the boom 3 and the boom 3 is raised and rotated.SELECTED DRAWING: Figure 4

    【課題】ブームをその長手方向上に上部旋回体のブーム取付部が位置するように地面に載置しなくても、ブーム吊り具によりブームを吊り上げてクレーン本体に連結することができるクレーンの組み立て時におけるブームの取付方法、クレーンに用いられるブーム吊り具およびブーム吊り具を備えるクレーンを提供する。【解決手段】ブーム吊り具6は、互いに回転可能なスプレッダ側固定部7とブーム側固定部8とを備える。クレーンは、ブーム3と、ブーム3を起伏させる第1引張部材を備える。第1引張部材は、マストの先端部に設けられる第1スプレッダと第2スプレッダ23との間に巻き掛けられるブーム起伏ロープ22を有する。地面にブーム3を任意の向きで載置し、第2スプレッダ23にスプレッダ側固定部7を固定する。ブーム側固定部8をブーム3の吊り具固定部に固定し、ブーム3を上昇させて回転させる。【選択図】図4


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    Title :

    BOOM ATTACHING METHOD IN CRANE ASSEMBLY, BOOM SUSPENDER USED FOR CRANE AND CRANE WITH BOOM SUSPENDER


    Additional title:

    クレーンの組み立て時におけるブームの取付方法、クレーンに用いられるブーム吊り具およびブーム吊り具を備えるクレーン


    Contributors:

    Publication date :

    2018-11-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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