Multi-piece solid golf ball

Abstract

The present invention provides a multi-piece solid golf ball having excellent rebound characteristics when hitting at low head speed because the rebound characteristics do not depend on the head speed at the time of hitting. The present invention relates to a multi-piece solid golf ball comprising core 5 composed of inner core 1, middle core 2, and outer core 3 and at least one layer of cover 4, wherein the above-mentioned inner core has a JIS-C hardness of 63 to 83, the above-mentioned outer core has a JIS-C hardness of 63 to 83, the JIS-C hardness of the above-mentioned inner core is greater than the JIS-C hardness of the above-mentioned middle core by 4 to 40, the JIS-C hardness of the above-mentioned outer core is greater than the JIS-C hardness of the above-mentioned middle core by only 4 to 40, each of the above-mentioned core layers are composed of a vulcanized molded article of a rubber composition containing base rubber, co-crosslinking agent, organic peroxide, and when necessary organic sulfide compound, and the two formulas, 0≦H1/H2<1 and 0≦H3/H2<1 are satisfied when the amounts of organic sulfide that is added to each of the above-mentioned core layers are H1, H2, and H3, respectively, in terms of parts by weight.

Dependencies are inferred from the claim text.