| 摘要 |
PROBLEM TO BE SOLVED: To provide a seat surface which is used for various kinds of seat devices and has improved sitting feeling by dispersing body pressure by enlarging a contact area of the seat surface against the buttocks for suppressing concentration of body weight to a specific location of the buttocks. SOLUTION: The seat surface, on which a person sits, of the seat device including a chair, a bench, and a floor cushion comprises a seat surface front part corresponding to the human thigh part and a seat surface rear part corresponding to the human buttocks. Vertical cross sections of the seat surface front part and the seat surface rear part have uneven shapes corresponding to uneven shapes of the buttocks and the human thigh part, respectively. Preferably the seat surface has right and left end parts higher than the center part and a vertical cross section of almost W-shape along the lateral direction. The rear end part of the seat surface is higher than any other parts including the front end part of the seat surface and has a vertical cross section of almost L-shape along the longitudinal direction and covers the rear back part of the buttocks. COPYRIGHT: (C)2007,JPO&INPIT
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