| 摘要 |
PROBLEM TO BE SOLVED: To provide a mat device of a wide applying range having a bedsore preventing structure. SOLUTION: A receiving member row 3 having first group of receiving members 2A and a second group of receiving members 2B alternately aligned at another each one is provided on a floor base 1 having a placeable state. The bedsore can be prevented by replacing the contact position of a physical body in contact with the row 2 by alternately rising and falling the first group of the members 2A and the second group of the members 2B. This mat device can be used by placing the base 1 on the suitable installation surface S of a floor, a trestle of the bed or the like. |
