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    • 10. 发明授权
    • Golf putter head
    • 高尔夫推杆头
    • US07364514B2
    • 2008-04-29
    • US10885786
    • 2004-07-08
    • Tetsuo YamaguchiMasayoshi Nishio
    • Tetsuo YamaguchiMasayoshi Nishio
    • A63B53/04
    • A63B53/0487A63B2053/0408
    • The present invention is a golf putter head wherein the second moment among the three inertial moments described below shows a maximum value in a state in which the head is placed on a horizontal plane at a specified lie angle and loft angle:First moment: inertial moment about a first axis which passes through the center of gravity of the head, and which is parallel to the face surface and said horizontal plane;Second moment: inertial moment about a second axis which is an axis in the vertical direction that passes through the center of gravity of the head; andThird moment: inertial moment about a third axis which passes through the center of gravity of the head, and which is perpendicular to said first axis and perpendicular to said second axis.
    • 本发明是一种高尔夫推杆头,其中以下描述的三个惯性力矩之间的第二时刻表示在头部以指定的角度和倾角处于水平面上的状态下的最大值:第一时刻:惯性力矩 围绕通过所述头部的重心并且平行于所述面部表面和所述水平面的第一轴线; 第二时刻:围绕通过头部重心的垂直方向上的轴的第二轴的惯性力矩; 和第三时刻:围绕通过头部重心并且垂直于所述第一轴线并垂直于所述第二轴线的第三轴线的惯性力矩。