To improve the ease of handling of the upper spreader and lower spreader.SOLUTION: In a crane 1 having a boom 4 and an upper spreader 5 and a lower spreader 6 around which a boom hoisting rope 37 is wound, the upper spreader and the lower spreader can be integrally connected and separated, and have an attachment portion 54 for a work rope R for lifting in a connected state. The upper and lower spreaders are configured so that, after one of the upper and lower spreaders is attached to a spreader attachment part 35 provided on the crane body or mast, and then the connection is released, the other of the upper and lower spreaders can be lifted by a work rope attached thereto at the attachment portion.SELECTED DRAWING: Figure 7

    【課題】上部スプレッダ及び下部スプレッダの取り扱い性の向上を図る。【解決手段】ブーム4と、ブームの起伏ロープ37が掛け回される上部スプレッダ5及び下部スプレッダ6とを備えるクレーン1において、上部スプレッダと下部スプレッダは、一体的な連結と分離とが可能であって、連結された状態で吊り上げるための作業用ロープRの取付部54を有し、上部スプレッダおよび下部スプレッダの一方をクレーン本体又はマストに設けられたスプレッダ取付部35に取り付け、連結を解除した後に、上部スプレッダおよび下部スプレッダの他方を取付部に取り付けた作業用ロープにより吊り上げ可能に構成されている。【選択図】図7


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    Title :

    CRANE AND CRANE ASSEMBLY METHOD


    Additional title:

    クレーン及びクレーンの組立方法


    Contributors:

    Publication date :

    2024-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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