| 摘要 |
PROBLEM TO BE SOLVED: To easily install left-right work operation devices, while making a longitudinal dimension of a revolving base compact. SOLUTION: A support frame 4 of a rectangular shape in a plan view having a column 4, is arranged in a rear part of the revolving base 2 by straddling an engine 3. A radiator 5 is adjacently arranged on left-right one side of this support frame 4. The right work operation device 15 is fixed to a right side part of the support frame 4. The left work operation device 14 is arranged in a left outside part of the radiator 5 in a left side part so that an attitude can be freely changed to an operation attitude and a retreat attitude. COPYRIGHT: (C)2006,JPO&NCIPI
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