发明名称 Golf ball
摘要 The present invention provides a golf ball exhibiting excellent shot feel, long flight distance and easy applicability of spin when hit by short irons. The golf ball comprises a thread wound core and a cover covering the thread wound core, the thread wound core comprising a solid center and a thread rubber layer formed by winding thread rubber around the solid center, wherein the solid center has a diameter of 30 to 38 mm, a surface hardness, determined by JIS-C hardness meter, of 40 to 90 and a hardness difference between the center point and the surface, determined by JIS-C hardness meter, of within 5, the solid center also has a deformation amount of 0.5 to 2.5 mm, the deformation amount being determined by applying a weight of from an initial load of 10 Kg to a final load of 30 Kg on the solid center and measuring a change of the deformation of the solid center by mm, and the cover is formed from a base resin mainly containing an ionomer resin and has a flexural modulus of 50 to 300 MPa and a Shore D hardness of 40 to less than 60.
申请公布号 US6210291(B1) 申请公布日期 2001.04.03
申请号 US19970834553 申请日期 1997.04.04
申请人 SUMITOMO RUBBER INDUSTRIES, LTD. 发明人 KATO AKIRA;YABUKI YOSHIKAZU;HIRATA HIROSHI;KATO NAOKI;SANO YOSHINORI
分类号 A63B37/00;A63B37/08;(IPC1-7):A63B37/06 主分类号 A63B37/00
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