| 摘要 |
PURPOSE: An excavating working machine is provided to a hose from projecting to form a visual obstacle when a boom is elevated to the maximum. CONSTITUTION: An excavating working machine comprises a traveling unit; an excavating unit including a boom(20) vertically working by a boom cylinder(23), an arm bending and stretching by an arm cylinder, and a bucket dumping and scooping by a bucket cylinder; a swivel base supported by the traveling unit, with supporting the excavating unit; and a flexible hose group(P) communicating actuating fluids between a control valve installed to the swivel base and each cylinder. A curved length-absorbing part for absorbing a difference in length of the hose group according to the vertical movement of the boom is installed on the swivel base side.
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