发明名称 GOLF CLUB
摘要 A golf club includes a club head, and a shaft. The club head includes a hosel formed into a tubular body having a top end and a shaft insertion hole extending downwardly from the top end. The shaft includes a shaft main body and a reinforcing member. The shaft main body is formed into a tubular shape having a tip end, and an internal surface surrounding cavity therein. The reinforcing member has a specific gravity of not more than 2.0 and is fixed in the cavity of the shaft main body. The reinforcing member includes a first portion fitting the internal surface of the shaft main body. The first portion includes an uppermost edge positioned upwardly with respect to the top end of the hosel, and a lowermost edge positioned between the top end of the hosel and the tip end of the shaft main body.
申请公布号 US2014357398(A1) 申请公布日期 2014.12.04
申请号 US201414290679 申请日期 2014.05.29
申请人 DUNLOP SPORTS CO. LTD. 发明人 YAMAMOTO Akio
分类号 A63B53/02 主分类号 A63B53/02
代理机构 代理人
主权项 1. A golf club comprising a golf club head, and a shaft, the golf club head comprising a hosel, the hosel formed into a tubular body having a top end and a shaft insertion hole extending downwardly from the top end, the shaft comprising a shaft main body and a reinforcing member, the shaft main body formed into a tubular shape having a tip end, and an internal surface surrounding axially extending cavity therein, the reinforcing member having a specific gravity in a range of not more than 2.0 and fixed in the cavity of the shaft main body, the reinforcing member comprising a first portion fitting the internal surface of the shaft main body, and the first portion having an uppermost edge and a lowermost edge, wherein the uppermost edge of the first portion is positioned upwardly with respect to the top end of the hosel, and the lowermost edge of the first portion is positioned between the top end of the hosel and the tip end of the shaft main body.
地址 Kobe-shi JP