TOILET BOWL DEVICE AND TOILET SEAT UNIT

To provide a technique capable of easily spreading washing fluid to a wide range of a rear face of a toilet seat.SOLUTION: A toilet seat unit comprises: a toilet bowl body having a bowl part; a toilet seat 22 attached to the toilet bowl body; and a first discharge part 50A capable of discharging washing fluid so as to flow along a rear surface of the toilet seat toward one side Pa in a peripheral direction of the toilet seat 22. The rear surface of the toilet seat 22 comprises a first inclined plane 82 which becomes a descending slope toward the one side Pa of the toilet seat 22 in the peripheral direction in at least a part of a range where the washing fluid discharged from the first discharge part 50A flows along it.SELECTED DRAWING: Figure 13 【課題】便座の裏面の広範囲に洗浄液を届かせ易くできる技術を提供する。【解決手段】便鉢部を有する便器本体と、便器本体に取り付けられる便座２２と、便座２２の周方向の一方側Ｐａに向けて便座の裏面を伝うように洗浄液を吐出可能な第１吐出部５０Ａと、を備え、便座２２の裏面には、第１吐出部５０Ａから吐出される洗浄液が伝わる少なくとも一部の範囲において、便座２２の周方向の一方側Ｐａに向かって下り勾配となる第１傾斜面８２が設けられる。【選択図】図１３