PROBLEM TO BE SOLVED: To easily perform a work for attachment of a lower spreader to a crane body.SOLUTION: A mast 30 is so attached to a crane body 13 as to be capable of derricking, and can become a lodged state such that the mast is turned down in a longer direction of the crane body 13. A connection member 60 connects the mast 30 and a lower spreader 50 thereby making a storage state such that the lower spreader 50 is stored with respect to the mast 30. When the mast 30 is in the lodged state and the lower spreader 50 is in the storage state, the lower spreader 50 is located at a prescribed attachment position at which the lower spreader can be freely attached to and detached from a lower spreader support part 40.SELECTED DRAWING: Figure 3
【課題】クレーン本体への下部スプレッダの取付作業を容易にする。【解決手段】マスト30は、クレーン本体13に起伏可能に取り付けられ、クレーン本体13の長手方向に伏せられた倒伏状態になる事が可能である。連結部材60は、マスト30と下部スプレッダ50とを連結することで、マスト30に対して下部スプレッダ50が格納された格納状態にする。マスト30が倒伏状態かつ下部スプレッダ50が格納状態のとき、下部スプレッダ50は、下部スプレッダ支持部40に対して着脱自在となる所定の取付位置に配置される。【選択図】図3
DERRICKING DEVICE
起伏装置
2017-12-07
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
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