Patent ID: 8628434
Filing Date: 2014-01-14
Classification: A63B

Abstract:
1. A golf club head, comprising: a hollow body including a crown, a sole, and a skirt; a face plate positioned at a front end of the hollow body and having a front surface; and a cover layer situated on the front surface of the face plate and including a peripheral rim, wherein the cover layer includes a polymer layer having a striking surface, the striking surface having a textured striking surface including a pattern of surface texture peaks formed thereon, the striking surface configured to provide a ball spin of about 2500 RPM under wet conditions; wherein a surface profile kurtosis of the surface texture peaks is greater than about 1.5, wherein the cover layer has a thickness between about 0.1 mm and about 2.0 mm, wherein the polymer layer is of a thickness of between about 0.3 mm and 0.6 mm, and the surface roughness of the striking surface is substantially periodic along at least one of a top-to-bottom direction and a toe-to-heel direction of the striking surface, the surface texture peaks having a periodic separation of about 0.5 mm and a height of about 20 μm to about 30 μm, wherein the cover layer has an effective Shore D hardness of about 75 to about 90, wherein the polymer is at least one of urethane and ionomer, wherein the face plate includes a plurality of scorelines, wherein at least a plurality of the face plate is formed of a composite, wherein the composite includes a lay-up, the lay-up including overlapping regions, the overlapping regions aligned such that at least a portion of the composite fibers are angularly spaced such that the lay-up includes a maximum thickness of about 5 mm proximate to a central region and a minimum thickness of about 3 mm proximate to a peripheral region, wherein the lay-up includes resin, the resin cross-linked throughout the lay-up.