| 摘要 |
PROBLEM TO BE SOLVED: To dissolve a problem that since, in a conventional mounting leg to mount a casing on a pedestal, a bolt used in mounting closes an insertion hole, rain water penetrating in the insertion hole can not finish flow through, by which corrosion is caused. SOLUTION: A bearing surface communicating groove 5 for a bolt is formed in a bearing surface 2b for a bolt and a mounting bearing surface communication groove 6 for a mounting bearing surface is formed in a mounting bearing surface 2a. This constitution causes rain water to flow through, in order, a bearing surface communication groove 5 for a bolt, an insertion hole 2c, and the mounting bearing surface communication groove 6 and wash the interior of the insertion hole 2c. Further, rain water remaining in the insertion hole 2c flows through the bearing surface communication groove 5 for a bolt or the mounting bearing surface communication groove 6 and easily flows through an external part, whereby corrosion in the insertion hole 2c is prevented from occurring.
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