Golf ball
AssigneeDunlop Sports Co. Ltd.
InventorsKohei Mimura, Takahiro Sajima, Hironori Takihara
Life of this patent
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Abstract
A golf ball has a large number of dimples 10 on a surface thereof. The dimples 10 include a plurality of small dimples 10S each having an area of less than 8.0 mm2, and a plurality of large dimples 10L each having an area of equal to or greater than 8.0 mm2. A ratio PS of a sum of areas of all the small dimples 10S to a surface area of a phantom sphere of the golf ball is less than 2.0%. A ratio PL of a sum of areas of all the large dimples 10L to the surface area of the phantom sphere is equal to or greater than 79.0%. A degree G of uniformity of areas of the large dimples 10L is equal to or less than 1.15.
Claims12
A golf ball having a large number of dimples on a surface thereof, wherein
- the dimples include a plurality of small dimples each having an area of less than 8.0 mm2, and a plurality of large dimples each having an area of equal to or greater than 8.0 mm2,
- a ratio PS of a sum of areas of all the small dimples to a surface area of a phantom sphere of the golf ball is less than 2.0%,
- a ratio PL of a sum of areas of all the large dimples to the surface area of the phantom sphere of the golf ball is equal to or greater than 79.0%, and
- a degree G of uniformity of areas (mm2) of the large dimples is equal to or less than 1.15.
Dependencies are inferred from the claim text.