Golf ball
AssigneeBridgestone Sports Co., Ltd.
InventorsKatsunori SATO, Kae IIZUKA
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Abstract
A golf ball for amateur golfers exhibits excellent flight characteristics when hit by the average golfer and also has a good feel at impact that is both soft and solid. The golf ball includes a core, an intermediate layer and a cover, and has coefficient of restitution and compressive deformation relationships that satisfy specific conditions.
Claims12
A golf ball comprising a core, an intermediate layer and a cover wherein, letting LBS, MBS and HBS be the respective coefficients of restitution for the ball at incident velocities of 35 m/s, 45 m/s and 55 m/s, LMS, MMS and HMS be the respective coefficients of restitution for the sphere obtained by encasing the core with the intermediate layer (intermediate layer-encased sphere) at incident velocities of 35 m/s, 45 m/s and 55 m/s and BC be the compressive deformation (mm) of the ball when compressed under a final load of 1,275 N (130 kgf) from an initial load of 98 N (10 kgf), the ball satisfies formulas (1) and (2) below:
- 5.10≤(LBS+MBS)×BC≤5.50 (1)
- 5.10≤(LMS+MMS)×BC≤5.50 (2),
- with the proviso that LBS≥0.820 and LMS≥0.820.
Dependencies are inferred from the claim text.