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 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|