| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To actualize stable connection between a drain port device and a pipe, improved appearance quality and cleanability, and good water-tightness. <P>SOLUTION: A drain port device 1 is mounted in a drain port 104 of a bathtub 100 having a suspended part 104S and a collar part 104F. It includes a plug cover 5, a cover shaft 41 supporting the plug cover 5, a cylindrical drain port member 2 having a male screw part 22 and a locked part 21 to be locked to the collar part 104F, and a supporting shaft member 3 having an outer cylinder part 31 and an inner cylinder part 37. On the upper side of the outer cylinder part 31, a projection part 33 is provided which is swollen to the radial outside. The outer peripheral face of the projection part 33 is sealed to the suspended part 104S in a liquid-tight manner, and at least the outer peripheral face upper end of the projection part 33 almost contacts the suspended part 104S. In the state that the projection part 33 is disposed on the locked part 21, the supporting shaft member 3 is fixed to the drain port member 2. When the plug cover 5 is closed, the outer peripheral site of the plug cover 5 contacts the projection part 33. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
