发明名称 Golf club head
摘要 In a metal golf club head, a recess portion with a closed bottom is formed in a bottom surface of a hollow shell cast of metal, and a sole plate, made of metal greater in specific gravity than the shell, is received in and secured to the recess portion in such a manner that the sole plate lies flush with that portion of the bottom surface disposed adjacent to a peripheral edge of the recess portion. The sole plate can withstand an impact produced when hitting a ball, and is prevented from becoming disengaged from the shell.
申请公布号 US5658207(A) 申请公布日期 1997.08.19
申请号 US19950408396 申请日期 1995.03.22
申请人 DAIWA SEIKO, INC. 发明人 AIZAWA, YUICHI;DEKURA, SHOICHI
分类号 A63B53/04;(IPC1-7):A63B53/04 主分类号 A63B53/04
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