发明名称 Golfball
摘要 A golf ball (1) which comprises a great circle zone (3) intersecting no dimples (2) exists on a parting line (L), and dimples (2) arranged on the spherical surface in such a manner that when a region less than 60 DEG from the parting line (L) of the golf ball (1) by a central angle theta of the sphere is each represented as a S region, another region from more than 60 DEG to a pole (4) is each represented as a P region, and a volume of one dimple arranged within S region is represented as VS and a volume of another dimple having the same curvature as that of one dimple and arranged within P region is represented as VP, the specifications of the dimples (2) of S and P regions are determined so that the value of VS/VP is set as: 1.02 </= VS/VP </= 1.25; and dimples (2) formed by a split mold composed of semi-spherical upper and lower molds are arranged symmetrically with respect to the face including said parting line (L). <IMAGE>
申请公布号 DE69025755(T2) 申请公布日期 1996.09.26
申请号 DE1990625755T 申请日期 1990.09.11
申请人 SUMITOMO RUBBER INDUSTRIES, LTD., KOBE, HYOGO, JP 发明人 OKA, KENGO, HYOGO-KEN, JP;YABUKI, YOSHIKAZU, AKASHI-SHI, HYOGO-KEN, JP
分类号 A63B37/00;(IPC1-7):A63B37/14 主分类号 A63B37/00
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