| 摘要 |
<p>PURPOSE:To eliminate the dead space between the foremost of an inner fitting member and the outer fitting member by inserting the curved connection part of a male fitting body into a groove provided in a female fitting body, connecting the male and female fitting bodies rotatably, and inserting watertightly a sealing material between the curved connection part of the male fitting body and the body part of the female fitting body. CONSTITUTION:A groove 32 admitting the curved connection part 11 of a male fitting body 1 and curving spherically is formed between the outside surface 21 of the body 23 of a female fitting body 2 and the inside surface 31 of a covering material 3. A groove is furnished at the outside surface 21 of the body part 23, and a sealing material 4 is fitted in this groove, and the area between the inside surface 31 of the covering material 3 and the surface of the curving connection part 11 is made watertight. The connection part inside surface 22 of the female fitting body 2 is formed comical as widening to the foremost. This eliminates dead space between the fitting connection parts, allows the drain water to flow away smoothly, and permits mounting in this part of universal fitting for pipeline without risk of stagnation.</p> |
