| 摘要 |
PROBLEM TO BE SOLVED: To easily change canopy specifications and cab specifications, by making using a main part of a revolving frame of the canopy specifications and a main part of a revolving frame of the cab specifications in common. SOLUTION: A center frame 12 and a right side frame 23 are used in common by the revolving frame 11 of the cab specifications and the revolving frame 51 of the canopy specifications. In the revolving frame 11 of the cab specifications, a left side frame 25 for a cab is installed on the left side of the center frame 12 by using bolts 31, 32 and 33. In the revolving frame 51 of the canopy specifications, the left side frame 52 for a canopy is installed on the left side of the center frame 12 by using the bolts 31, 32 and 33. Thus, a specification change to a hydraulic excavator 41 of the canopy specifications from a hydraulic excavator 1 of the cab specifications, or a specification change to the hydraulic excavator 1 of the cab specifications from the hydraulic excavator 41 of the canopy specifications, can be quickly performed. COPYRIGHT: (C)2006,JPO&NCIPI
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