| 摘要 |
PROBLEM TO BE SOLVED: To achieve light weight of a crane vehicle in a mobile crane. SOLUTION: This mobile crane is provided with a traveling body 1, a rotary frame 2 rotatably mounted on the top of the traveling body 1, a subsidiary frame 31 detachably installed on the rotary frame 2, a lattice boom 32 installed on the subsidiary frame 31 to be capable of rising and falling without interfering with a cabin 5 provided on the rotary frame 2, a boom derricking means 37 to derrick the lattice boom 32, and a winding drum 8 to suspend a load through a winch rope 9 hung down through a tip part of the lattice boom 32. COPYRIGHT: (C)2006,JPO&NCIPI
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