| 摘要 |
PROBLEM TO BE SOLVED: To prevent forward slippage of a body in a state that a user shallowly sits down, without imparting badness of visual effects or an incongruity sense/discomfort in a state of having sat down.SOLUTION: A range except a front part 14a of a seat plate 14 is a normal face fundamentally not having unevenness (corrugation) in a front view and a side view. The front part 14a of the seat plate 14 has a form obtained by simply extending an intermediate part 14b, a right-and-left intermediate part of the front part 14a is a saddle part 25 not deformed by body pressure of a person, and both right and left sides of the saddle part 25 are thigh support parts 26 recessedly deformed by the body pressure of the person. Because the saddle part 25 relatively rises by the recessed deformation of the thigh support parts 26, forward slippage of a body is prevented. Because the saddle part 25 is not higher than the intermediate part 14b, discomfort in visual effects is not imparted on a user, and because not excessively oppressing a crotch part, an incongruity sense or discomfort is not imparted on the user. |
