Golf ball

Abstract

The invention provides a golf ball comprising a core and a cover, wherein the cover consists of an outer layer and an inner layer having a lower hardness than the outer layer. The cover inner layer is formed with a plurality of recesses in its outer surface and the cover outer layer is formed over the cover inner layer in such a manner that the cover outer layer penetrates into the recesses in the cover inner layer to form protrusions. The sum of the cross-sectional areas of the protrusions at their base accounts for 2-45% of the surface area of an imaginary smooth cover inner layer. The protrusions have a height corresponding to 30-100% of the thickness of the cover inner layer where no recesses are formed. The ball receives a reduced spin and travel a distance upon driver shots, but receives an increased spin and is easy to control upon iron or sand wedge shots.

Dependencies are inferred from the claim text.