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    • 8. 发明专利
    • Golf club head
    • 高尔夫俱乐部头
    • JP2013176486A
    • 2013-09-09
    • JP2012042619
    • 2012-02-29
    • Dunlop Sports Co Ltdダンロップスポーツ株式会社
    • UEDA NAOYOSHIMIZUTANI NARIHIRO
    • A63B53/04
    • A63B53/02A63B53/0466A63B53/047A63B53/0487A63B59/60A63B60/50A63B2053/0408A63B2053/042A63B2053/0433A63B2053/0491
    • PROBLEM TO BE SOLVED: To provide a head capable of lowering the center of gravity by suppressing such a state that a head gravity center is eccentrically located in a heel side.SOLUTION: A head 2 includes a head body h1 and a neck part n1. The head body h1 and the neck part n1 are joined together. The head body h1 has a body-side joining surface s1, and a first recessed part opened at the body-side joining surface s1. A space v1 is formed by the first recessed part r1. The neck part n1 has a neck-side joining surface that comes into surface-contact with the body-side joining surface s1, and a shaft hole 14. A contact boundary plane Pt passes a head height lowest point adjacency ad1. A plane orthogonal to the axial line z of the shaft hole 14 is defined as PL and, when an angle formed between the plane PL and the contact boundary plane Pt is θ degree, the angle θ has a plus value. The recessed part r1 is closed by the neck part n1.
    • 要解决的问题:通过抑制头部重心偏离位于跟部侧的状态来提供能够降低重心的头部。解决方案:头部2包括头部主体h1和颈部n1。 头体h1和颈部n1连接在一起。 头体h1具有主体侧接合面s1和在主体侧接合面s1开口的第一凹部。 空间v1由第一凹部r1形成。 颈部n1具有与主体侧接合面s1和轴孔14进行表面接触的颈侧接合面。接触边界面Pt通过头部高度最低点邻接点ad1。 与轴孔14的轴线z正交的面定义为PL,当平面PL与接触界面Pt之间形成的角度为θ时, 度,角度和角度; 有一个加值。 凹部r1由颈部n1封闭。