Golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsMasahide ONUKI, Takahiro SAJIMA
Life of this patent
Estimating the term…
Abstract
Provided is a golf ball that is suitable for golf players who can achieve a sufficiently high trajectory due to initial elements and is also suitable for golf players who cannot achieve a sufficiently high trajectory due to initial elements. The golf ball has a core, a cover, and a paint layer. The golf ball has a variable dimple on a surface thereof. The cover has a hole. A space is formed by the hole. The cover and the paint layer are not joined at a location directly below the dimple. A space is formed between the cover and the paint layer. The volume of the space varies due to a centrifugal force caused by backspin.
Claims20
A golf ball comprising a plurality of dimples on a surface thereof, wherein
- the dimples include one or more variable dimples, and
- each of the variable dimples has a structure that makes a shape thereof during flight different from a shape thereof at rest.
A golf ball comprising:
- a spherical body having a core and a cover;
- and
- a plurality of dimples on a surface of the spherical body, wherein
- the dimples include variable dimples having a structure that allows the depth of the variable dimples to change in response to centrifugal force during spin of the golf ball.
A golf ball comprising:
- a golf ball body having a core and a cover;
- a membrane covering the golf ball body, the membrane having dimples and lands on a surface thereof;
- and
- fluid positioned between the membrane and the golf ball body at locations corresponding to the dimples, wherein
- a distance between the membrane and the golf ball body varies during flight due to centrifugal force acting on the fluid.
Dependencies are inferred from the claim text.