To provide an undercarriage of a mobile crane capable of suppressing displacement generated on the undercarriage when a suspended cargo is suspended from a revolving super structure in front of or behind of the undercarriage, while suppressing the deterioration of workability of disassembling work of the undercarriage and suppressing an increase in dimensions of components configuring the undercarriage.SOLUTION: In each of a plurality of coupling members 11R, 12R, 11L and 12L, one of a car body connecting portion and a crawler connecting portion is a rotary connecting portion, and the other is an attaching/detaching connecting portion. Each of the plurality of coupling members 11R, 12R, 11L and 12L is configured to be disposed at an approach position where the attaching/detaching connecting portion is located near a rotated member as compared with a bulging position, by rotating at the attaching/detaching connecting portion while the attaching/detaching connecting portion is removed from a detached/attached member.SELECTED DRAWING: Figure 3

    【課題】下部走行体の分解組立作業の作業性の低下を抑制するとともに下部走行体を構成する部品の寸法の増加を抑制しつつ、下部走行体よりも前側又は後側において吊り荷が上部旋回体から吊るされたときに下部走行体に生じる変形を小さくことが可能な移動式クレーンの下部走行体を提供する。【解決手段】複数の連結部材11R,12R,11L,12Lのそれぞれにおいて、カーボディ接続部及びクローラ接続部のうちの一方は回動接続部であり、他方は着脱接続部である。複数の連結部材11R,12R,11L,12Lのそれぞれは、前記着脱接続部が前記被着脱部材から取り外された状態で前記回動接続部において回動することにより前記着脱接続部が張出位置に比べて前記被回動部材の近くに位置する接近位置に配置されることが可能なように構成される。【選択図】図3


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    Title :

    UNDERCARRIAGE OF MOBILE CRANE


    Additional title:

    移動式クレーンの下部走行体


    Contributors:

    Publication date :

    2022-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / B62D MOTOR VEHICLES , Motorfahrzeuge / E02F Baggern , DREDGING



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