| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a diversion saddle joint surely stopping water even under high water pressure in execution of piping, without making it difficult to mold. <P>SOLUTION: In the diversion saddle joint 1, a vertical cylinder part 6 having a connection cylinder part 8 for connecting a branch pipe for diversion 31 stands on an upper part of a saddle part 2 having an opening part 3 and crossing piping 30. A hole saw 14 is installed to be vertically movable in the vertical cylinder part 6. Annular packing 12 is disposed along a circumferential direction of an upper outer peripheral wall 21 of the hole saw 14 or an upper inner peripheral wall 10 of a vertical cylinder part 6. When the hole saw 14 moves upward in the vertical cylinder 6, the annular packing 12 seals between the upper outer peripheral wall 21 and the upper inner peripheral wall 10 of a vertical cylinder part 6. An enlargement prevention tool 16 having a peripheral wall 28 is installed to an upper part of the vertical cylinder part 6 to prevent the vertical cylinder part 6 form enlarging toward the outside. The inner diameter of the peripheral wall 28 is approximately the same as the outer diameter of the vertical cylinder part 6, and is brought into close contact with an upper outer peripheral wall 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
