Golf ball
AssigneeSRI Sports Limited
InventorSeiichirou Endou
Life of this patent
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Abstract
Golf ball 1 includes a core 2 formed by crosslinking a rubber composition and a cover 3 comprising a resin composition. The cover 3 has a two-layered structure including an outer cover layer 4 and an inner cover layer 5. A number of dimples 6 are formed on the surface of the cover 3. The outer cover layer 4 has a Shore D hardness of from 58 to 72. The golf ball 1 has an amount of compressive deformation of from 2.5 mm to 4.0 mm when measured with applying an initial load of 10 kgf to a final load of 130 kgf. Percentage of the number of dimples having a contour length of greater than or equal to 11.6 mm occupied in total number of dimples is greater than or equal to 50%.
Claims10
A golf ball including a core comprising one or more layers formed by crosslinking a rubber composition, and a cover comprising one or more layers formed from a resin composition, wherein said golf ball has:
- a diameter of from 42.67 mm to 42.85 mm;
- an amount of compressive deformation of from 2.5 mm to 4.0 mm when measured with applying an initial load of 10 kgf to a final load of 130 kgf;
- a Shore D hardness of the outermost layer of said cover being from 58 to 72;
- a surface area occupation ratio Y, expressing the percentage of the spherical surface area of the golf ball occupied by dimples, being in the range of 78.50% to 88%;
- and
- a percentage of the number of dimples having a contour length of greater than or equal to 11.6 mm based on the total number of numerous dimples formed over the surface thereof of greater than or equal to 77%.
Dependencies are inferred from the claim text.