| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a putter club head for correcting a ball shot direction when a ball shot position is deviated into a target direction, and preventing the other kinds of ball shots from being influenced. <P>SOLUTION: A plurality of projected/recessed lines 20 with upward curved lines are formed in the face 10F of the head as an expression in a putter club addressing state. The tangential lines of the respective projected/recessed lines are substantially horizontal on a vertical line passing the sweet spot of the head. From the vertical line toward a toe 10T and a heel 10H, the tangential line of each projected/recessed line has an inclination angle made larger with respect to a horizontal direction, and the inclination angle of the tangential line of each projected/recessed line is made to be 40°or less respectively in an area between a position of 20 mm from the vertical line in the toe direction and the vertical line and an area between a position of 20 mm from the vertical line in the heel direction and the vertical line. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
