Multi-piece solid golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsKeiji Moriyama, Kazunari Yoshida, Takeshi Asakura, Takahiro Sajima, Keiji Ohama
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Abstract
The present invention is directed to a multi-piece solid golf ball exhibiting excellent flight performance by optimizing the trajectory of the golf ball during flight. The golf ball of the present invention satisfies the formula 1020≦(NY+266H)≦1085 with total number of dimples being N, the quotient Y being determined by dividing A by B in which A is the total area of a plane defined by a dimple edge and B is a surface area of a sphere when the sphere is formed assuming that there is no dimple on the cover, and a deformation amount H when applying from an initial load of 10 kgf to a final load of 130 kgf on the golf ball.
Claims5
A multi-piece solid golf ball comprising a core consisting of an inner core and an outer core formed on the inner core, and a cover covering the core and having many dimples on the surface thereof, wherein assuming that
- a total number of the dimples is represented as N,
- a quotient (Y) is obtained by dividing A by B (A/B), in which A (mm2) is a total area of a plane defined by a dimple edge, and B (mm2) is a surface area of a sphere when the sphere is formed assuming that there is no dimple on the cover, and
- a deformation amount when applying from an initial load of 10 kgf to a final load of 130 kgf on the golf ball is represented as H (mm),
- the golf ball satisfies the following formula:
- 1020≦(NY+266H)≦1085.
Dependencies are inferred from the claim text.