PROBLEM TO BE SOLVED: To enable a boom to be easily attached/detached without the need for use of a power device separate from a crane, and suppress upsizing of a revolving super structure and an increase in mass and cost.SOLUTION: A boom attachment/detachment device 1 includes a boom suspension 40 that is arranged on a front side X1 (boom tip side) with respect to a revolving frame 15. The boom suspension 40 supports a boom 20 so that the boom 20 can move in a boom shaft direction X, when a boom derricking cylinder 19 is expanded/contracted in a state in which connection between the revolving frame 15 and the boom 20 by a boom foot pin is released.SELECTED DRAWING: Figure 4

    【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を容易に行うことができるようにし、かつ、上部旋回体の大型化、質量、およびコストを抑制する。【解決手段】ブーム脱着装置1は、旋回フレーム15よりも前側X1(ブーム先端側)に配置されるブーム支持装置40を備える。ブーム支持装置40は、旋回フレーム15とブーム20とのブームフットピンによる連結が切り離された状態で起伏シリンダ19が伸縮したときに、ブーム20がブーム軸方向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4


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    Title :

    DEVICE AND METHOD FOR ATTACHING/DETACHING BOOM OF CRANE


    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 :

    2017-02-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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