To provide a counterweight position changing device and a crane having the same capable of attaching/detaching a counterweight and mounting the counterweight at a different mounting position in a simple way.SOLUTION: A counterweight position changing device comprises a link member 10 having a base end part 10A supported by a swivel base 6 of a crane 1, and a cylinder device 11 constructed between the swivel base 6 and the link member 10. The link member 10 has multiple first attachment parts 14, 15 for attaching/detaching a counterweight 8 at different positions, and can rotationally move between a position P1 and a position P2 for attaching/detaching the counterweight 8 and a position P1' and a position P2' for mounting the counterweight 8 on the swivel base 6 by the telescopic motion of the cylinder device 11.SELECTED DRAWING: Figure 3

    【課題】簡易な方法で、カウンタウェイトを着脱できるとともに、異なる設置位置に取り付けることのできるカウンタウェイト位置変更装置及びそれを備えたクレーンを提供する。【解決手段】カウンタウェイト位置変更装置は、クレーン1の旋回台6に、基端部10Aを支持されたリンク部材10と、旋回台6とリンク部材10との間に架設されたシリンダ装置11と、を備え、リンク部材10は、カウンタウェイト8を異なる位置で着脱するための複数の第一の取付部14、15を有し、シリンダ装置11の伸縮によって、カウンタウェイト8を着脱する位置P1、位置P2と、カウンタウェイト8を旋回台6に設置する位置P1‘、位置P2’との間を回動可能である。【選択図】図3


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    Title :

    COUNTERWEIGHT POSITION CHANGING DEVICE AND CRANE


    Additional title:

    カウンタウェイト位置変更装置及びクレーン


    Contributors:

    Publication date :

    2019-11-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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