发明名称 Iron-type golf club head
摘要 An iron-type golf club head 1 having an improved moment of inertia without impairing the productivity and comprising a face portion 1A which includes a body 10 having a club face 2 on its front side and an annular weight member 11 fixed to a peripheral edge portion on the back face side of the body 10 and having a larger specific gravity than the body 10, in which at least a part of the weight member 11 is exposed onto the club head's outer circumference surface including top, sole and toe, and the body 10 is provided on its back face 6 side with an annular recess portion 14 into which the weight member 11 is fixed and which has an outside-facing surface 13a fitted to an internal circumference surface 11i of the annular weight member 11.
申请公布号 US7530902(B2) 申请公布日期 2009.05.12
申请号 US20070785374 申请日期 2007.04.17
申请人 SRI SPORTS LIMITED 发明人 NAKAMURA TAKASHI
分类号 A63B53/04 主分类号 A63B53/04
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