Patent ID: 6045460
Filing Date: 2000-04-04
Classification: A63B

Abstract:
A multi-piece solid golf ball comprising; a core including an inner sphere and at least one enclosure layer surrounding the inner sphere and a cover consisting of an inner cover surrounding the core and an outer cover surrounding the inner cover, said inner sphere having a hardness expressed by a distortion of 1.5 to 4.5 mm under a load of 100 kg, said enclosure layer having a surface hardness lower than the surface hardness of the inner sphere in Shore D, said inner cover having a Shore D hardness of at least 55, said outer cover having a Shored D hardness or 35 to 53, said ball has a weight of 44.5 to 45.93 grams and a moment of inertia of at least (1.52.times.ball weight (gram)+12.79) g.multidot.cm.sup.2, and at least one layer of the outer cover, the inner cover and the enclosure layer has a high specific gravity inorganic filler blended therein.