| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate coupling of a long pipe made of resin. SOLUTION: An annular flange 13 made of resin is arranged at the end part of one inner pipe 3 and an annular flange 14 made of resin is arranged at the end part of the other inner pipe 4. In interjoining of the two annular flanges 13 and 14, axially slidable annular metallic rings 24 and 25 are respectively mounted on the outer peripheries of the inner pipes 3 and 4, and through-holes 26 and 27 through which the bolt 28 is inserted are formed in the metallic rings 24 and 15, respectively. The through-holes 26 and 27 are arranged in the outer peripheries of the metallic rings 24 and 5 such that the bolt 28 is prevented from interference with the annular flanges 13 and 14.</p> |
