DRAIN TRAP FOR BATHTUB PAN AND BATHROOM UNIT USING THE SAME

• Main Authors: SUGI SHIGETO, KOBAYASHI NAOYA
• Format: Patent
• Language: English; Japanese
• Published: 04.12.2014
• Subjects: COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; FIXED CONSTRUCTIONS; FURNITURE; HUMAN NECESSITIES; SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; SEWERAGE; SINKS; SPICE MILLS; SUCTION CLEANERS IN GENERAL; TOILET ACCESSORIES; WATER SUPPLY

PROBLEM TO BE SOLVED: To provide a drain trap for a bathtub pan and a bathroom unit in which the drainage of a bathtub does not flow backward to the side of a bathtub pan even without providing a float valve and the maintenance is easy, a washing space floor can be lowered even if lowering a height of striding over the bathtub, and the occurrence of seal breaking sound in the drainage of the bathtub is prevented.SOLUTION: A drain trap for a bathtub pan is characterized by: partitioning the inside of a trap body 1 into a first seal water storage part and a second seal water storage part through a partition wall; draining bathtub drainage flowing into the first seal water storage part, from a first overflow port 32a into a first water passing part 21 of a drainage pipe part 2 through a first seal water pipe 42; performing suction drainage of the seal water in the second seal water storage part from a second overflow port 33a to the side of the drainage pipe part 2 until reaching a seal breaking state, when a negative pressure state occurs at the downstream from a second water passage 22 due to bathtub drainage; and making a portion of the drainage flowing into the second water passing part 22 from the first water passage 21 flow in as the seal water of the second seal water storage part through the second overflow port 33a, when the bathtub drainage is reduced. 【課題】フロート弁を設けずとも浴槽の排水が浴槽パン側に逆流せず、維持管理が容易である上、浴槽への跨ぎ込み高さを低くしても洗い場床の低床化を図れ、浴槽の排水時に破封音の発生を防止する浴槽パン用排水トラップと浴室ユニットを提供する。【解決手段】トラップ本体1内を隔壁を介して第１封水貯水部と第２封水貯水部とに仕切り、第１封水筒42を介して第１封水貯水部に流れ込んだ浴槽排水を、第1オーバーフロー口32aから排水筒部2の第１通水部21内に排水されるようにする一方、浴槽排水によって第２通水路22より下流で負圧状態になると、第２オーバーフロー口33aから第2封水貯水部内の封水を排水筒部2側に破封状態になるまで吸引排水し、浴槽排水が少量になってくると、第１通水路21から第２通水部22に流れ込んだ排水の一部が第2オーバーフロー口33aを介して第2封水貯水部の封水として流入するようにした。【選択図】図３