To provide a crane tha is easily assembled/disassembled, and a crane disassembling method.SOLUTION: This crane is provided with: an undercarriage 1; an upper turning body 2 that is mounted on the undercarriage; a boom 3 which is attached to the upper turning body so as to rise/fall, and to which a suspension rope Rh is hung; and a derricking mechanism 4 for causing the boom to rise/fall. The derricking mechanism has a gantry 12 or a mast that is detachably attached to the upper turning body, a first spreader 13 that is provided to the tip of the gantry or the mast, a second spreader 14 that makes a pair with the first spreader, and a derricking winch 15 that is disposed in the gantry or the mast and that winds a derricking rope Rd hung on the first and second spreaders. The gantry or the mast has a spreader holding part 17 with which the second spreader is engaged by winding the derricking rope.SELECTED DRAWING: Figure 1

    【課題】本発明は、分解及び組立てが容易なクレーン及びクレーン分解方法を提供することを課題とする。【解決手段】クレーンは、下部走行体1と、上記下部走行体上に搭載される上部旋回体2と、上記上部旋回体に起伏可能に取り付けられ、吊りロープRhが掛け渡されるブーム3と、上記ブームを起伏させる起伏機構4とを備え、上記起伏機構が、上記上部旋回体に着脱可能に取り付けられるガントリ12又はマストと、上記ガントリ又はマストの先端に設けられる第1スプレッダ13と、上記第1スプレッダと対をなす第2スプレッダ14と、上記ガントリ又はマストに配設され、上記第1スプレッダ及び上記第2スプレッダに掛け渡される起伏ロープRdを巻き取る起伏ウインチ15とを有し、上記ガントリ又はマストが、上記起伏ロープの巻取りにより上記第2スプレッダが係合するスプレッダ保持部17を有する。【選択図】図1


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    Title :

    CRANE AND CRANE DISASSEMBLING METHOD


    Additional title:

    クレーン及びクレーン分解方法


    Contributors:

    Publication date :

    2019-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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