To provide a toilet seat allowing a user to assume a posture in which the curvature of the rectum is eased and it is easy to defecate when sitting on the toilet seat.
The sitting toilet seat 71 includes a support 3 for supporting the body of a user around an opening where excrement falls, and a front inclined surface part 27 provided on the upper surface of the support and at a position to be in contact with the buttocks of the user when the user sits and rotates the pelvis in the direction of moving the pelvis upper side of the user forward. In the front inclined surface part, while the user sits on the front inclined surface part and the front inclined surface part and the buttocks of the user are brought into contact, the inner side tissue of the buttocks slides down along the front inclined surface part by the component force in parallel with the front inclined surface part of gravity acting on the user, and thus, the skin of the buttocks of the user is pulled up to the rear by the front inclined surface part and the pelvis is consequently rotated. The sitting toilet seat further includes a sitting position guide part 73 for guiding the user to sit on the front inclined surface part.
SATO MINORU
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Makoto Watanabe