发明名称 |
Wound golf ball |
摘要 |
A wound golf ball comprising a center, a thread rubber layer and a cover has a weight of 40-45 grams and a distortion of 2.6-3.6 mm under a load of 100 kg. The center has an outer diameter of 30-35 mm and a distortion of 1.6-4 mm under a load of 30 kg. The cover has a Shore D hardness Hd of 50-68 and a gage of 1.2-2.2 mm. A percent overall dimple volume Vr which is defined as the sum of the volumes of dimple spaces each below a circular plane circumscribed by the dimple edge divided by the volume of the ball satisfies: (0.985-0.002 Hd)</=Vr</=(1.085-0.002 Hd). The ball launches at a greater launch angle and initial velocity upon driver full shots at low head speed, traveling a longer distance.
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申请公布号 |
US5823888(A) |
申请公布日期 |
1998.10.20 |
申请号 |
US19970852947 |
申请日期 |
1997.05.08 |
申请人 |
BRIDGESTONE SPORTS CO., LTD. |
发明人 |
MARUKO, TAKASHI;UMEZAWA, JUNJI |
分类号 |
A63B37/00;A63B37/04;A63B37/08;(IPC1-7):A63B37/08;A63B37/06;A63B37/12;A63B37/14 |
主分类号 |
A63B37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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