公开(公告)号：US20110300968A1

公开(公告)日：2011-12-08

申请号：US13118909

申请日：2011-05-31

申请人： Hui Tak RYU ,  Jeong Su Kim ,  Gyu Tak Lee ,  Chan Rae Kim ,  Jae Ho Lee ,  Gi Min Ryu ,  Gyeong An Moon

发明人： Hui Tak RYU ,  Jeong Su Kim ,  Gyu Tak Lee ,  Chan Rae Kim ,  Jae Ho Lee ,  Gi Min Ryu ,  Gyeong An Moon

IPC分类号： A63B37/00

CPC分类号： A63B37/0043 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0076

摘要： Disclosed is a golf ball including a center portion, at least two intermediate tiers sequentially surrounding the center portion, and an outer tier surrounding the intermediate tiers, which comprises: said outer tier having a thickness in a range of 0.8˜1.4 mm, and an a hardness (Shore D) in a range of 40˜50; among the intermediate tiers, said first intermediate tier formed just below the outer tier, having a thickness in a range of 1.0˜2.0 mm and a hardness (Shore D) in a range of 50˜65; each intermediate tier formed just below the first intermediate tier having a thickness in a range of 1.3˜1.5 mm, and a hardness (Shore D) in range of 30˜70; the radius of the center portion is in a range of 5˜18 mm, and a hardness (Shore D) in a range of 30˜70; and a moment of inertia value of the golf ball is less than 83 g·cm2. According to the golf ball of the present invention, an iron spin force is excellent as compared to a conventional golf ball for a match, and the flying distance is almost same.

摘要翻译： 公开了一种高尔夫球，其包括中心部分，顺序围绕中心部分的至少两个中间层和围绕中间层的外层，其包括：所述外层的厚度在0.8〜1.4mm的范围内， 硬度（肖氏D）在40〜50的范围内; 在中间层之间，形成在外层正下方的第一中间层，其厚度在1.0〜2.0mm的范围内，硬度（肖氏D）在50〜65的范围内; 每个中间层形成在第一中间层的正下方，其厚度在1.3〜1.5mm的范围内，硬度（Shore D）在30〜70的范围内; 中心部分的半径在5〜18mm的范围内，硬度（肖氏D）在30〜70的范围内; 高尔夫球的惯性矩小于83g·cm 2。 根据本发明的高尔夫球，与用于比赛的传统高尔夫球相比，铁旋转力是优异的，并且飞行距离几乎相同。