Solid golf ball
First Claim
1. A solid golf ball comprising a solid core and a cover of one or more layers which encloses the core and has on a surface thereof numerous dimples, the solid golf ball being characterized in that the solid core has a diameter of 38.7 to 39.6 mm and a deflection hardness of 3.0 to 4.0 mm, the cover has a Shore D hardness of 59 to 70 and has 313 to 371 dimples formed thereon, and the ball has an initial velocity of at least 76.8 m/s, a coefficient of lift (CL) when hit of at least 0.165 at a Reynolds number of 70,000 and a spin rate of 2,000 rpm, and a coefficient of drag (CD) when hit of not more than 0.230 at a Reynolds number of 180,000 and a spin rate of 2,520 rpm.
1 Assignment
0 Petitions
Accused Products
Abstract
A solid golf ball is composed of a solid core and a cover of one or more layers which encloses the core and has on a surface thereof numerous dimples. The solid core has a diameter of 38.7 to 39.6 mm and a deflection hardness of 3.0 to 4.0 mm. The cover has a Shore D hardness of 59 to 70 and has 313 to 371 dimples formed thereon. The ball has an initial velocity of at least 76.8 m/s, a coefficient of lift (CL) when hit of at least 0.165 at a Reynolds number of 70,000 and a spin rate of 2,000 rpm, and a coefficient of drag (CD) when hit of not more than 0.230 at a Reynolds number of 180,000 and a spin rate of 2,520 rpm. The golf ball has a carry which is long enough to make the ball advantageous for competitive play, in addition to which it has a good feel when hit and excellent durability to cracking with repeated impact.
10 Citations
4 Claims
- 1. A solid golf ball comprising a solid core and a cover of one or more layers which encloses the core and has on a surface thereof numerous dimples, the solid golf ball being characterized in that the solid core has a diameter of 38.7 to 39.6 mm and a deflection hardness of 3.0 to 4.0 mm, the cover has a Shore D hardness of 59 to 70 and has 313 to 371 dimples formed thereon, and the ball has an initial velocity of at least 76.8 m/s, a coefficient of lift (CL) when hit of at least 0.165 at a Reynolds number of 70,000 and a spin rate of 2,000 rpm, and a coefficient of drag (CD) when hit of not more than 0.230 at a Reynolds number of 180,000 and a spin rate of 2,520 rpm.
Specification