SEAT

摘要

PROBLEM TO BE SOLVED: To keep a seater feel good regardless of differences in physique or the like among individual occupants. SOLUTION: A seat cushion 12 is provided with sensors 16A to 16C and an airbag 20. A seatback 14 is provided with sensors 18A to 18D and an airbag 22. Air pressures within the airbags 20 and 22 are regulated by a pressure device 28 controlled by a controller 30. The controller 30 calculates a deflection ratio from the values detected by the sensor 16C and the sensors 18C and 18D and regulates the air pressure of the airbag 20 so that the deflection ratio is approximately 1 or less. When an occupant is seated for a long time, the controller regulates the air pressure of the airbag 22 using a predetermined pattern of regulation. Thus, the occupant is allowed to feel good while seated and to alleviate fatigue.