Abstract
A sitting comfort of three automotive seats (a middle class car, a low class car, and a light car), whose cushion angles were changed 0°, 8° or 15° and back angles, surface materials and pad shape were the same, was evaluated by only human tactile sensation while sitting on these seats. As the result of the sensory evaluation, three grade seats whose cushion angles were 8° were evaluated the most "high-class" and those seats whose angles were 15° were evaluated the most "sporty". Further a pressure and a contact area distributions between the human body and the seat were measured by a tactile sensor system while sitting on seats whose cushion angles were 0, 8 or 15°.From the result of correlation analysis among the cushion angle, the pressure distribution and the sensory values of sitting comfort, it is found that the "sporty" and "hold" feeling increases as the cushion angle of the middle class car increases. The "support under the femoral region" feeling increases as the angle of the low class car increases. And the "hold" feeling increases and the "comfortable" feeling decreases as the angle of the light car increases.
