| 摘要 |
PROBLEM TO BE SOLVED: To obtain comfortableness while having proper stimulus by forming a protrusion and recess part on the surface of a flooring so that the sole of a foot is brought into contact with only a protrusion part, and specifying the rate of the protrusion part coming into contact with the sole of the foot for the set area of the sole of the foot. SOLUTION: A flooring 11 provides a V-shaped parallel groove 13, a protrusion part 12A and a recess part 12B are continuously formed on the surface, a grown-up has a normal walking manner, and a pitch and depth of the recess part 12B are made so that the sole of a foot is brought into contact with only the protrusion part 12A. Furthermore, the rate of the area of the protrusion part 12A coming into contact with the sole of the foot for the set area of he sole of the foot on the flooring 11 is made 35-75%. The contact for the protrusion part 12A is stimulated on the sole of the foot by such constitution to obtain a kind of massage effect, concretely one can feel comfortableness, warmth, blood flowing feeling and the like, and it is quite comfortable.
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