| 摘要 |
PROBLEM TO BE SOLVED: To provide a drain trap superior in drain efficiency by smoothing a flow of waste water by devising a shape of an introducing part communicating with an inflow chamber of an inflow-outflow part of a trap body. SOLUTION: This drain trap 1 is constituted so that the trap body 3 is fixed to and arranged in a pipe end part of a drain pipe A1; in the trap body 3, the inflow-outflow part 34 is divided into two parts of the inflow chamber 34b and the outflow chamber 34c; the introducing part 33 introducing the waste water introduced via a connecting pipe 4 to the inflow chamber 34b, is arranged on the upper end of the inflow-outflow part 34; the waste water introduced to the connecting pipe 4 flows in the inflow chamber 34b via the introducing part 33, and is introduced to the outflow chamber 34c from the lower end of this inflow chamber 34b, and is drained to the drain pipe A1 from a drain port 34d formed on the upper end of the outflow chamber 34c in the shape of making a U-turn upward. A part 33b of the introducing part 33 forming an upper part of the outflow chamber 34c is formed in a semi-conical shape, and the lower end of this semi-conical part 33b is connected to a partition wall 34a. COPYRIGHT: (C)2007,JPO&INPIT
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