| 摘要 |
PROBLEM TO BE SOLVED: To prevent muscular fatigue during sleeping to make a sleeping posture stable by partitioning the part a person lies on into some partitions and automatically and continuously changing shapes of those partitions. SOLUTION: Air is sent from an inflation controller 2 through an air pipe 3 to an inflation bag 6. When the inflation bag 6 is inflated and reaches a prescribed pressure, a sealed pressure switch 9 is flattened by the pressure difference between outside and inside to send a signal to the inflation controller 2. Then the inflation controller stops air blowing and a valve 10 is closed to prevent the back flow of air. The air in the inflation bag 6 gradually goes out through an air vent hole 7. When the bag is shrunk to a prescribed extent a contact switch 8 is pressed to send a signal to the inflation controller 2 to start air blowing again. Inflation parts are not similarly inflated but differently inflated at random. For instance, a sleeping person's body is warped when only a prescribed part is inflated, and a sleeping person in a condition knees are bent when another prescribed inflation part is flattened.
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