WASTE WATER DRAIN MEMBER, JOINT MEMBER, AND METHOD FOR REPAIRING DRAINAGE STRUCTURE

• Main Authors: YAMANE YOSHIKAZU, NOGUCHI KOTARO
• Format: Patent
• Language: English; Japanese
• Published: 07.07.2016
• Subjects: BUILDING; FIXED CONSTRUCTIONS; GUTTERS; ROOF COVERINGS; ROOF-WORKING TOOLS; SKY-LIGHTS

PROBLEM TO BE SOLVED: To utilize a connection part between an existing waste water drain member and a water-resistant layer while suppressing a decline in drainage capacity, and to prevent an inflow of waste water into a gap between an existing water-resistant layer and a repairing water-resistant layer.SOLUTION: In a waste water drain member 1 comprising a piping part 10 connecting a drain port 6 with a drain pipe 7, a repairing drain support part 11 projecting inward is installed on the inside of the piping part 10, and the repairing drain support part 11 is formed over the whole circumference of the inner surface of the piping part 10 and has a support surface 12 abutted by the end face of a repairing drain 50. The repairing drain support part 11 has a plurality of levels, and a repairing drain support part 11b located on the side of the drain pipe 7 projects inner than a repairing drain support part 11a located on the side of the drain port 6.SELECTED DRAWING: Figure 1 【課題】排水能力の低下を抑制しつつ既存の排水ドレン部材と防水層との接続部分を利用するとともに、既存防水層と改修防水層との隙間への排水の流入を防止する。【解決手段】排水口６と排水管７とを繋ぐ配管部１０を備えた排水ドレン部材１において、配管部１０の内面には、内側に張り出す改修ドレン支持部１１が設けられており、改修ドレン支持部１１は、配管部１０の内面の全周に亘って形成されており、改修ドレン５０の先端面が当接する支持面１２を有している。改修ドレン支持部１１は、複数段設けられており、排水管７側に位置する改修ドレン支持部１１ｂは、排水口６側に位置する改修ドレン支持部１１ａよりも内側に張り出している。【選択図】図１