| 摘要 |
PROBLEM TO BE SOLVED: To provide the drainage structure of a unit bath in which the dirt of a bathtub-side pan by drain under a door can be prevented while usability can be improved by properly setting the drainage slope of a washing-place pan. SOLUTION: In the drainage structure of the unit bath in which a bathtub is arranged on one side and a washing place is installed on the other side while a faucet or the like is mounted on one end side in the longitudinal direction of the bathtub of the washing place, the drainage structure has a drainage elbow secured to the bathtub-side pan, to which the bathtub is set up, a drain trap fitted on the faucet side of the washing-place pan, on which the washing place is formed, and a drain gutter under the door installed to the lower section of the door, and the other end of a drain pipe under the door, in which one end is connected to the drain gutter under the door, is joined with a drain pipe connecting the drainage elbow and the drain trap. The drain pipe under the door is arranged at a position higher than the drain pipe joining the drainage elbow and the drain trap. |
