To provide a support structure for a tower crane mast with good workability, which can stably support the mast.SOLUTION: A support structure 2 for a tower crane mast comprises a diagonal member 26 which is disposed to incline in a direction away from a mast 21 from the lateral side of the mast 21 downward, and supports the mast 21. The upper part 26u of the diagonal member 26 is detachably connected to the mast 21. An attachment hole 212 is formed on the outer surface 211 of the mast 21 to penetrate the mast 21 from the inside to the outside. An attachment part 262 is provided on the upper part 26u of the diagonal member 26 to be inserted into the attachment hole 212. A pin hole 263 is formed at the end of the attachment part 262 to vertically penetrate it. A pull stop pin 264 is locked in the pin hole 263.SELECTED DRAWING: Figure 5

    【課題】施工性が良く、マストを安定して支持可能なタワークレーンのマストの支持構造を提供する。【解決手段】タワークレーンのマストの支持構造2は、マスト21の側方から下方に向かうにしたがって次第にマスト21から離間する方向に傾斜して配置され、マスト21を支持する斜材26を備え、斜材26の上部26uは、マスト21に着脱可能に連結され、マスト21の外側面211には、マスト21の内外方向に貫通する取付孔212が形成され、斜材26の上部26uには、取付孔212に挿入される取付部262が設けられ、取付部262の端部には、上下方向に貫通するピン孔263が形成され、ピン孔263には、抜け止めピン264が係止されている。【選択図】図5


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    Title :

    SUPPORT STRUCTURE FOR TOWER CRANE MAST


    Additional title:

    タワークレーンのマストの支持構造


    Contributors:

    Publication date :

    2022-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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