| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that the corrosion caused by the copper packing of a joint is found in a piping structure utilized in a power steering device of an automobile or the like. SOLUTION: In this piping structure 1, a joint 10 mounted on an end part of a first pipe 11 is screwed on a fixing face 32 of an outer peripheral face 31 of a second pipe 12, an O-ring 13 for the copper packing, is placed between the joint 10 and the fixing face 32 for sealing. Whereby the corrosion caused by the copper packing can be prevented, and for example, an aluminum joint 10 can be used without problems. As the rubber O-ring 13 is soft, it can surely seal the joint 10 and the second pipe 12. A height of the piping structure 1 from the fixing face 32 can be reduced by mounting a fixing bolt 14 on a position separated from a through hole 33, whereby the piping structure can be miniaturized.
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