发明名称 WOOD GOLF CLUB
摘要 <p>PROBLEM TO BE SOLVED: To provide a wood golf club that dos not cause a hook easily. SOLUTION: A wood golf club 1 having a head 2, the face 2a of which is bulged. In a reference state in which the center line C of a shaft 4 is located on a vertical face, the center line C is tilted by the lieαof the club, and the face 2a is tilted by the loft, a face reference borderline K where a horizontal line HP passing the intermediate position between the lowest position A and the highest position B of the face 2a intersects the face 2a is a curve swollen outwards. At acute angle side absolute value anglesθtx andθhx formed by the tangential lines Ttx and Thx of the face reference borderline K at the toe side point tx and the heel side point hx separated from a cardinal point S as the middle point of the borderline of the face reference borderline K to the toe t side and the heel h side by the distance x in parallel with the vertical face in the horizontal plane HP and a tangential line Ts, when the distance x is 2.0 mm or longer,θtx is larger thanθhx.</p>
申请公布号 JP2001120691(A) 申请公布日期 2001.05.08
申请号 JP19990305970 申请日期 1999.10.27
申请人 SUMITOMO RUBBER IND LTD 发明人 TSUNODA MASAYA
分类号 A63B53/04;(IPC1-7):A63B53/04 主分类号 A63B53/04
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