Sumitomo Rubber Industries Limited

Sri Sports Limited

Toshihiro Horii

Koichi Fujisawa

Tetsuo Yamaguchi

Kunio Niwa

Seigou Sakagami

Kazuhiko Kobayashi

Ikuko Umezawa

A midsole of a shoe has a low elastic part, a high elastic partand an inclined surface. The low elastic partand the high elastic partinclude air bubbles. An ethylene-vinyl acetate copolymer (EVA) is used as a base polymer in the low elastic partand the high elastic part. The inclined surfaceis inclined upward from the inside to the outside. The low elastic partis located to the inside of the inclined surface. The high elastic partis located to the outside of the inclined surface. An inner high elastic partis located to the inside of a low elastic part. The thickness of the low elastic partbecomes gradually larger from the outside to the inside along the inclined surface. The thickness of the high elastic partbecomes gradually larger from the inside to the outside along the inclined surface. The width Wa of the inclined surfacein left and right direction is 5 mm or more and 100 mm or less.

Shoe

A shoe (L) for a left foot includes an outsole body ( ). Both side slip prevention projections ( ) and ( ) and a non-both side slip prevention projection ( ) are formed on a bottom surface of the outsole body ( ). The outsole body ( ), the both side slip prevention projections ( ) and ( ) and the non-both side slip prevention projection ( ) are integrally formed of a composition containing rubber or synthetic resin as a principal component. Each of the both side slip prevention projections ( ) and ( ) has a bottom surface to be a grounding surface, a toe side slip prevention wall and a heel side slip prevention wall. The toe side slip prevention wall is formed along a convex line in a direction of a toe. The heel side slip prevention wall is formed along a convex line in a direction of a heel. A shoe (R) for a right foot has a shape obtained by transversely inverting the shape of the shoe (L) for the left foot.

Golf shoes

Growing community of inventors

Kobe, Japan

Toshihiro Horii