To provide a bathtub allowing a bather to bath in a comfortable posture just like lying down on the beach, providing the bather with a floating sense as the whole body including the back is wrapped by the hot water, and providing a sufficient heating effect and a relaxation effect.
This bathtub is so formed that the bathtub bottom surface has a double structure of upper side bottoms 2 and 2 and a lower side bottom 1a, the upper side bottoms 2, 2, etc. are composed of permeable surface materials and gently sloped from the bathtub inside to the upper surface of the bathtub, and a means for generating a water flow or bubbles is provided between the upper side bottoms 2, 2, etc. and the lower side bottom 1a. Or, the upper side bottoms 2, 2, etc. are constituted by attaching a plurality of long bodies to opposed inner wall surfaces 1c and 1e in parallel to each other in the bathtub.
TAKEMI TARO
HAYAKAWA TAKAAKI
