PROBLEM TO BE SOLVED: To suppress an increase in the size, weight and cost of a revolving super structure by enabling attachment/detachment of a boom without the need for use of a power device different from a crane.SOLUTION: A boom attachment/detachment device 1 includes a boom 20, and a boom suspension 50 that is arranged on a boom tip side X2 with respect to a revolving super structure 13. The boom suspension 50 supports the boom 20 so that a back end (an end on a boom back end side X1) of the boom 20 can move in a boom extraction/contraction direction X, when the boom 20 makes a telescopic motion in a state in which connection between the revolving super structure 13 and the boom 20 by a boom foot pin 20a is released.SELECTED DRAWING: Figure 1

    【課題】クレーンとは別の動力装置を用いる必要なくブームの脱着が行えるようにし、上部旋回体の大型化、重量、およびコストを抑制する。【解決手段】ブーム脱着装置1は、ブーム20と、上部旋回体13よりもブーム先端側X2に配置されるブーム支持装置50と、を備える。ブーム支持装置50は、上部旋回体13とブーム20とのブームフットピン20aによる連結が切り離された状態でブーム20が伸縮動作したときに、ブーム20の後端部(ブーム後端側X1の端部)がブーム伸縮方向Xに移動可能となるように、ブーム20を支持する。【選択図】図1


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    Title :

    CRANE BOOM ATTACHMENT/DETACHMENT DEVICE AND CRANE BOOM ATTACHMENT/DETACHMENT METHOD


    Additional title:

    クレーンのブーム脱着装置およびクレーンのブーム脱着方法


    Contributors:

    Publication date :

    2016-10-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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