| 摘要 |
PROBLEM TO BE SOLVED: To impart high strength even to a region, in which a hose insertion hole is formed, by providing the hose insertion hole when a vehicle body frame is formed by a casting means. SOLUTION: A frame body 6 of a revolving frame 5, a mounting bracket 7, and a counterweight 8 are integrally formed by the casting means. In this casting, the hose insertion hole 22, which is opened in the front rising wall portion 6B of the frame body 6, is provided. A hydraulic hose 19 for a boom, through which a hydraulic fluid is supplied to/discharged from a boom cylinder 4E of working equipment 4, is inserted through the hose insertion hole 22. COPYRIGHT: (C)2008,JPO&INPIT
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