发明名称 Golf ball
摘要 A golf ball includes a solid core, an intermediate layer, and a cover having dimples formed therein. The core has a Shore D hardness at the surface of 30-48, the intermediate layer has a Shore D hardness of 53-60, and the cover has a higher Shore D hardness of 55-65. In the cover, 370 to 450 dimples of at least two types having different diameters and/or depths are distributed so as to cover at least 63% of the ball surface. The index Dst of the overall dimple surface area is at least 4. The golf ball provides significantly improved flight distance and a good feel by virtue of a good balance in hardness and optimized dimple characteristics.
申请公布号 US5967908(A) 申请公布日期 1999.10.19
申请号 US19980069280 申请日期 1998.04.29
申请人 BRIDGESTONE SPORTS CO., LTD. 发明人 YAMAGISHI, HISASHI;HIGUCHI, HIROSHI;ICHIKAWA, YASUSHI;HAYASHI, JUNJI
分类号 A63B37/00;A63B37/12;(IPC1-7):A63B37/06;A63B37/14 主分类号 A63B37/00
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