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1. 发明授权

US6074310A Metal wood golf club head having low center of gravity 失效
标题翻译：金属木高尔夫球杆头具有低重心
公开(公告)号：US6074310A
公开(公告)日：2000-06-13
申请号：US63115
申请日：1998-04-20
申请人： R. Dean Ota
发明人： R. Dean Ota
IPC分类号： A63B53/04
CPC分类号： A63B53/04 , A63B53/0466 , A63B2053/0408 , A63B2053/0433 , A63B2053/0454 , A63B2053/0458
摘要： A golf club includes a shaft having at one end a hollow metal wood club head. The club head defines a face, a lower sole portion, an upper portion, and a side wall. The sole portion is generally thicker than the upper portion, and preferably approximately one and one-third to six times as thick. As a result of the thicker construction of the sole portion relative to the upper portion, the center of gravity of the club head is relatively low. The lower center of gravity permits a golfer to more easily swing the face of the club head under a golf ball. In a second embodiment, portions of the side wall are provided with a generally thicker construction relative to the upper portion of the club head. In a third embodiment, the sole portion is made from a material having greater mass per unit area than the upper portion.
摘要翻译：高尔夫球杆包括一个轴，其一端具有中空的金属木杆头。球杆头限定一个面，一个下底部，一上部和一个侧壁。鞋底部分通常比上部厚，优选为大约一到三分之一至六倍。由于鞋底部分相对于上部较厚的结构，球杆头的重心相对较低。较低的重心允许高尔夫球手更容易地将球杆头的表面摆放在高尔夫球下方。在第二实施例中，侧壁的部分相对于球杆头的上部具有大致较厚的结构。在第三实施例中，鞋底部分由具有比上部更大的每单位面积质量的材料制成。

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