Title:
排水装置
Document Type and Number:
Japanese Patent JP6955187
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a drainage system capable of suppressing bacterial growth and sediment accumulation inside.SOLUTION: A drainage system 1 includes: a metallic member 10 having a cylindrical part 14, an upstream-side connection part 16, and a downstream-side connection part 18; and a resin member 12 inserted into the cylindrical part 14 and forming an upstream-side passage 86 and a downstream-side passage 88 inside the cylindrical part 14, the upstream-side passage leading drainage downward below the downstream-side connection part 18 from the upstream-side connection part 16, and the downstream-side passage leading the drainage upward to the downstream-side connection part 18. The resin member 12 has a cylindrical upper portion 66 like the cylindrical part 14 and having a cross-section form corresponding to a cross-section form of the cylindrical part 14, and a cylindrical lower portion 68 continuing from the upstream-side portion 66 and having a cross-section form that partially corresponds to the cross-section form of the cylindrical part 14 and extending downward below the downstream-side connection part 18. Thus, the upstream-side passage 86 close to a draft surface is formed by a space surrounded by an inner wall of the resin member 12, while the downstream-side passage 88 close to the draft surface is formed by a space surrounded by an outer wall of the resin member 12 and an inner wall of the cylindrical part 14.SELECTED DRAWING: Figure 4
Inventors:
Revelation
Application Number:
JP2016219748A
Publication Date:
October 27, 2021
Filing Date:
November 10, 2016
Export Citation:
Assignee:
TOTO Ltd.
International Classes:
E03C1/29; E03C1/12
Domestic Patent References:
| JP2013199786A |
Foreign References:
| US20030196262 | ||||
| GB2384251A | ||||
| EP1227191B1 |
Attorney, Agent or Firm:
Takaki Nishijima
Disciple Maru Ken
Shinichiro Tanaka
Mitsuru Matsushita
Ichiro Kurasawa
Hiroko Suzuki
Disciple Maru Ken
Shinichiro Tanaka
Mitsuru Matsushita
Ichiro Kurasawa
Hiroko Suzuki