发明授权
- 专利标题: Golf ball
- 专利标题(中): 高尔夫球
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申请号: US09998658申请日: 2001-12-03
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公开(公告)号: US06602152B2公开(公告)日: 2003-08-05
- 发明人: Hisashi Yamagishi , Junji Hayashi , Yasumasa Shimizu
- 申请人: Hisashi Yamagishi , Junji Hayashi , Yasumasa Shimizu
- 优先权: JP2001-324334 20011023
- 主分类号: A63B3706
- IPC分类号: A63B3706
摘要:
A golf ball including a sold core and a cover is provided. A deformed amount of the solid core, measured by applying a load of 980 N thereto, is in a range of 4.0 to 6.0 mm. A JIS-C hardness of the cover is in a range of 75 to 95. A JIS-C hardness (Sh) of a surface of the core and a JIS-hardness (Ch) of a center portion of the core satisfy a relationship of 1.55×Ch−16≦Sh≦1.55×Ch−10. A JIS-C hardness (Vh) of the cover and a JIS-C hardness (Sh) of the surface of the core satisfy a relationship of 0.9×Vh−70≦Vh−Sh≦0.9×Vh−50. The hardnesses of the center portion of the core, the surface of the core, and the cover become higher in this order. With this configuration, the golf ball can exhibit a high carrying performance, a good controllability, a desirable very soft feeling of hitting, and an excellent durability against continuous hitting.
公开/授权文献
- US20030083157A1 Golf ball 公开/授权日:2003-05-01
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