| 摘要 |
<p>PROBLEM TO BE SOLVED: To rapidly and surely relax the human body by vibrating the human body while supporting the same, providing the vibration with a specific frequency and fluctuation component, and providing the acceleration component with a specific comfortability coefficient relative to the car body vibration of a rolling stock. SOLUTION: In a reclining chair 1, the angle between a reclining back rest 11 comprising a head rest 12 and a seat part 10 is made variable, and the angle between the seat part 10 and a foot rest 2 is also made variable. The seat part 10 is mounted on a base comprising a vibrator 3 and a controller 8, and the whole chair 1 including the foot rest 2 is vibrated in the operation of the vibrator 3. This vibration is determined so that a plurality of specific vibration frequencies of less than 25 Hz are alternated with 1/f fluctuation intervals. Further an acceleration level is determined to be 1.5 or less by the evaluation by the comfortability coefficient relative to the car body vibration of a rolling stock. Further the detection signals of an acceleration sensor 6, a relaxation sensor 7 or the like are utilized in the control.</p> |
