发明名称 GOLF BALL
摘要 <p>PROBLEM TO BE SOLVED: To obtain a golf ball which has a good ball hitting feel, durability and repulsion performance, has an excellent flying characteristic and has advanced performance when viewed overall. SOLUTION: The golf ball, which has a core 1, >=2 layers of covers 2 and 3 for covering the core and is formed with many dimples on the surface of the uppermost layer cover 3, is characterized in that the hardness of the core is >=30 to <51, the product (A×B) of the Shore D hardness B of the uppermost layer cover and the Shore D hardness B of the cover on the immediate inner side of the uppermost layer cover is in a range of 1,000 to 3,500, the golf ball has at least three kinds of the dimples varying in diameter as the dimples described above, the ratio AD/AP of the average diameter(AD) and average depth(AP) of the dimples is 17 to 26 and the total volume of the dimples which is the total sum of the entire dimple of the dimple space volume under the plane enclosed by the edges of the respective dimples is 280 to 390 mm2.</p>
申请公布号 JP2000225211(A) 申请公布日期 2000.08.15
申请号 JP19990028771 申请日期 1999.02.05
申请人 BRIDGESTONE SPORTS CO LTD 发明人 YAMAGISHI HISASHI;MARUKO TAKASHI;NAKAMURA ATSUSHI
分类号 A63B37/00;A63B37/06;A63B37/12;(IPC1-7):A63B37/00 主分类号 A63B37/00
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