| 摘要 |
PROBLEM TO BE SOLVED: To provide a cabin of construction machinery, which enables a reduction in weight and cost by making a floor frame thin-walled. SOLUTION: A support 2 and a ceiling part 3 are premounted on the floor frame 1. For this reason, the rigidity of the floor frame 1 is made higher than ever before by virtue of such a structure. A sheet receiving protrusion 25 is formed on an upside floor plate 21; a reinforcing rib 27 is formed on a downside floor plate 22; and both the plates 21 and 22 are laminated together. A reinforcing plate 29 is joined to a part which is continuously provided between the floor frame 1 and the support 2. In the floor frame 1, a partition plate 32, which is also used for enhancing the rigidity, is erected, and a rear side with respect to the partition plate 32 serves as an electric-component arranging space for arranging an air conditioner body, other pieces of electrically-operated equipment, etc. Thus, the rigidity of the floor frame 1 can be made higher than ever before. Consequently, the weight of the whole cabin can be reduced, and the costs can be brought down. COPYRIGHT: (C)2004,JPO
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