Golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsTakahiro SAJIMA, Toshiyuki TAKUBO
Life of this patent
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Abstract
A golf ball 2 has a plurality of dimples 10 on a surface thereof. Each dimple 10 has a center portion 16 and an edge portion 18. The center portion 16 has a bowl shape. The edge portion 18 has a ring shape. The edge portion 18 is smoothly continuous with the center portion 16. A cross-sectional shape of the edge portion 18 is a curved line that is convex outward in a radial direction of the golf ball 2. A ratio P1 of a number N1 of the dimples each having an edge portion 18 that is adjacent to another edge portion 18 such that the edge portion 18 shares a boundary line with the other edge portion 18, to a total number N of the dimples, is not less than 50%.
Claims4
A golf ball having a plurality of dimples on a surface thereof, wherein
- each dimple has a center portion having a bowl shape, and an edge portion smoothly continuous with the center portion and having a ring shape,
- a cross-sectional shape of the edge portion is a curved line that is convex outward in a radial direction of the golf ball, and
- a ratio P1 of a number N1 of the dimples each having an edge portion that is adjacent to another edge portion such that the edge portion shares a boundary line with the other edge portion, to a total number N of the dimples, is not less than 50%.
Dependencies are inferred from the claim text.