发明名称 Method of manufacturing a golf club
摘要 A golf club with an enhanced degree of freedom with respect to design, and a method for manufacturing the same. A head 1 is formed with a face 3 on a front face, a cavity 9 on a rear face and a shaft attachment portion 8 on one side, to which is connected a shaft 2. If a maximum height of a bottom surface 9A of the cavity 9 in the top-to-sole direction is denoted by H1, and a maximum width thereof in the toe-to-heel direction is denoted by W1, the cavity 9 is formed to satisfy an inequality: H1/W1>=0.6. Further, if a maximum height of the face 3 is denoted by H2, then the cavity 9 is formed to satisfy an inequality: 0.7<=H1/H2<=0.85. Thus, the face 3 can be easily resiliently bent at the time of striking balls, thereby developing a greater repulsive force, elongating travelling distances of balls.
申请公布号 US2001039217(A1) 申请公布日期 2001.11.08
申请号 US20010896622 申请日期 2001.06.29
申请人 TAKEDA HITOSHI 发明人 TAKEDA HITOSHI
分类号 A63B53/00;A63B53/04;B23K26/20;B23K33/00;(IPC1-7):A63B53/04 主分类号 A63B53/00
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