Patent ID: 6231461
Filing Date: 2001-05-15
Classification: A63B

Abstract:
A four piece solid golf ball comprising:a centeran intermediate layer having two layers consisting of an inner layer and an outer layer, formed on the center, anda cover covering the intermediate layer,wherein the center has a JIS-C hardness of 50 to 80 and a diameter of 30 to 35 mm, the inner layer has a JIS-C hardness of 70 to 100 and a thickness of 0.5 to 2.5 mm, the outer layer has a JIS-C hardness of 40 to 80 and a thickness of 0.5 to 2.5 mm and the cover has a Shore D hardness of 62 to 72 and a thickness of 1.0 to 3.0 mm, and wherein the inner layer and cover are harder than the center and the outer layer respectively, so that the hardness distribution of the portions is arranged soft-hard-soft-hard from the center to the cover.