DRAINAGE STRUCTURE OF BATHROOM UNIT

PROBLEM TO BE SOLVED: To prevent a back flow to a bathtub pan of a drain from a bathtub, and to rapidly treat the drain from the bathtub while preventing dust such as hairs contained in the drain from clogging in a grating for a bathtub-pan trap. SOLUTION: The bathtub-pan trap 3 receiving the drain flowing out from the bathtub 1 and the drain from the bathtub pan 2 is installed on the rear side of the bathtub pan 2 on which the bathtub 1 is placed. The bathtub-pan trap 3 and a wash-place pan trap 5 are connected by a drain pipe 6 for making the drain from the bathtub 1 and the bathtub pan 2 flow to the wash-place pan trap 5 receiving the drain from a wash-place pan 4. The drain pipe 6 is formed of the drain pipe 61 for the bathtub making the drain from the bathtub 1 flow and the drain pipe 62 for the bathtub pan making the drain from the bathtub pan 2 flow. A flow passage 7 introducing the drain from the bathtub 1 to the drain pipe 61 for the bathtub is formed into the bathtub-pan trap 3, and one end 62a of the drain pipe 62 for the bathtub pan is opened. COPYRIGHT: (C)2003,JPO