| 摘要 |
PURPOSE:To hold a straight pipe without the occurrence of sectional deformation or torsion by attaching a pipe extended in diameter and a pipe contracted in diameter which are made of a slit pipe to the outside of a cylindrical body, and pressing said pipes with them put between the flange of the cylindrical body and the collar of a flange. CONSTITUTION:A cylindrical body 3 is composed of a thick-walled cylindrical main body 3a and a flange 3b having a chuck hole 35 at its center, and said main body 3a is composed of a cylindrical part 31 and a flange 32 having a chuck hole 33 at its center. The outside of the cylindrical main body 3a is fitted with pipes 1a, 1b extended in diameter, pipes 2a-2c contracted in diameter and a rubber seal ring 4a. The flange 3b has a collar 36 and an annular cylindrical part 37 fitting on a small diameter cylindrical part 38. In the above constitution, a straight pipe P is attached to the cylindrical body 3, and then said pipes 1a, 1b and 2a-2c are pressed by flanges 34, 36. Consequently, a taper part functions to extend or contact each pipe diameter, and thereby the straight pipe P is held on the cylindrical body 3. |
