| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sole having an increased slip prevention effect in walking on a snow road, frozen road surface, and the like. <P>SOLUTION: The sole 10 satisfies the following conditions (a), (b). (a) Assuming that A1 is a plane area of a heel region H surface of the sole, and that B1 is a plane area of a part in contact with a plane in the heel region surface when the heel region is brought into contact with the plane under non-pressure or under pressure, a heel grounding ratio expressed by B1/A1 is 0.35-0.65. The part in contact with the plane is dispersedly arranged in the heel region of the sole in a state divided by grooves. (b) Assuming that A2 is a plane area of a toe region T surface of the sole 10 and that B2 is a plane area of a part in contact with a plane in the toe region surface when the toe region is brought into contact with the plane under non-pressure or under pressure, a toe grounding ratio expressed by B2/A2 is 0.35-0.65. The part in contact with the plane is dispersedly arranged in the toe region of the sole in a state divided by the grooves. <P>COPYRIGHT: (C)2012,JPO&INPIT |
