| 摘要 |
PROBLEM TO BE SOLVED: To prevent deformation of a bending part of a flexible pipe after execution by forming a part of a circumferential direction of a side wall of a metallic flexible pipe expanding in a bellows shape, and limiting a bendable direction. SOLUTION: A lower part of a circumferential direction of a side wall of a metallic flexible pipe 1 made of, for example, stainless steel, iron, aluminum, or the like is expanded in a bellows shape by 3/4. Accordingly, a bendable direction in a bellows part 11 is limited. Alternatively, the whole circumference of a part of the side wall of the metallic flexible pipe 1 is expanded in a bellows shape, and a bellows part 11 is bent in a nearly L-shaped. It may be covered and fixed from an outside by a fixing tool provided with a recessed part which is the same shape and size as the bent bellows part. It is thus possible to prevent deformation caused by deflecting the bellows part 11 of the metallic flexible pipe 1 after execution.
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