PURPOSE: To make it possible to use selectively either a washing method in the event of an open-seat or washing method in the event of a storage by an automatic or manual operation after a bowl body is used by making it possible to bend each part thereof so that it is capable of moving, and opening a seat downward from a vertical storage state.

CONSTITUTION: A feed-pipe 7 and trap 14 can be so bent that a toilet bowl body 1 is capable of moving, and it is used by opening a seat downward from a vertical storage state. After stool, it is stored vertically again and, at the same time, when a flushing valve 12 of a water supply source 3 is operated by an automatic or manual operation, actual washing water 8 flows to the bowl body 1 from a water spouting port 6 to wash and clean. In a normal washing method in the event of an open-seat as well as in a washing method in the event of a storage, the flushing valve 12 of the water supply source 3 is opened in a state of the open-seat, the actual washing water 8 flows out from the water supply cource 3. According to the constitution, either the washing method in the event of the open-seat or the washing method in the event of the storage can be selectively used freely in accordance with kinds of easing nature and liking of using conditions, etc..