CRAWLER CRANE

摘要

PROBLEM TO BE SOLVED: To provide a crawler crane capable of securing the same vehicle body stability as that of a crawler crane using an upper revolving body having a boom supporting bracket exclusive for a crane, though a traveling carrier for a hydraulic shovel and the upper revolving body are utilized.

SOLUTION: This crawler crane 1 is constituted by revolvably mounting the upper revolving body 4 around a vertical axial center on the traveling carrier 2 provided with a crawler type traveling device and supporting a box type multistage telescopic crane boom 8 to be freely derricked on the upper revolving body 4 via a boom fit pin P3. The boom fit pin P3is supported at an upper position of an engine 6 via an adapter 7. A base end face of the crane boom 8 is located on an upper side of a rear end face of a counter weight 4c forming a rear end part of the upper revolving body 4.

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