| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe, put in the connecting state without welding, manufactured at a low cost, and facilitating the connecting work. SOLUTION: A fitting part 31 of a horizontal pipe 30 is positioned and externally fitted to a vertical pipe 20 so that a second through hole 32 and first through holes 21, 21 are aligned with each other, and after a rivet 50 is inserted in the second through hole 32 from the outside of the horizontal pipe 30 and the leg part of the rivet 50 is passed through the second through hole 32 and the first through holes 21, 21, the tip of the rivet 50 projected from the first through hole 21 is caulked to fix and connect the horizontal pipe 30 and the vertical pipe 20 to each other. COPYRIGHT: (C)2005,JPO&NCIPI
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