| 摘要 |
PROBLEM TO BE SOLVED: To provide a door lower frame for bathroom unit capable of directly draining the hot water or water flowing to the lower frame side to a washing place pan side. SOLUTION: This door lower frame comprises a sill part 2 for receiving a door 6 from the lower side, which partially has a drain hole 25 for draining down the hot water or water run into the sill part; a drainage receiving gutter part 3 provided so as to receive the sill part 2 from the lower side; a partitioning wall for partitioning the drainage receiving gutter part 3 into a section A opposed to the drain hole 25 from under and equipped with a drain hole 34 on the bathroom-side wall surface and a section B other than it, which partially has a drainage channel allowing the section A to communicate with the section B; and an outer groove part 4 having an outer groove 41 provided on the outside of the sill part 2 to receive the hot water or water flowing to the outside over the sill part 2 and a drain passage for draining the hot water or water entered to the outer groove 41 to the section B. A check valve mechanism for preventing backflow is provided on either one of the drainage channel or outer groove 41 provided in the partitioning wall and the drainage channel provided in the section B.
|
