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    • 2. 发明专利
    • Mobile crane
    • JP5300336B2
    • 2013-09-25
    • JP2008151168
    • 2008-06-10
    • 株式会社タダノ
    • 俊介 上野和文 三宅
    • B66C23/70
    • PROBLEM TO BE SOLVED: To provide a mobile crane preventing both a boom side and an extension jib side from being damaged when attaching and detaching an extension jib of the mobile crane. SOLUTION: The mobile crane is provided with a plurality of sheaves 17 at a tip of a telescopic boom 40, the extension jib 20 detachably connected to the tip of the telescopic boom 40 by a connection means A, and a pulling rope 31 laid over the tip of the telescopic boom 40 and a base end 21 of the extension jib 20 for a connection. The plurality of sheaves 17 of the mobile crane to connect the base end of the extension jib 20 to the tip of the telescopic boom 40 by the connection means A by pulling the pulling rope 31 are projected from the tip of the telescopic boom 40. Guard means 13 are arranged in front of the plurality of sheaves 17. When the base end of the extension jib 20 is connected to the tip of the telescopic boom 40 by the connection means A by pulling the pulling rope 31, the plurality of sheaves 17 are guarded by the guard means 13 so that the extension jib base end part may not abut on the plurality of sheaves 17. COPYRIGHT: (C)2010,JPO&INPIT