| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a golf putter capable of obtaining a stable roll. <P>SOLUTION: A real loft angle of a putter 2 is one to four degrees. In a reference section D1, an intersection point of a line which passes through a center of gravity g1 of a head and is perpendicular to a horizontal plane H1 and a sole surface 18 is represented by T1, a line passing through the point T1 and a point Le is represented by S1, a point which is present on the sole surface 18 and is provided apart from the line S1 toward a lowermost side is represented by T2, a line which passes through the point T2 and is parallel with the line S1 is represented by S2, a distance between the point T2 and the line S1 is represented by K1, a line passing through the point T2 and the point Le is represented by S3, a distance in the front-rear direction between the point T2 and the point Le is represented by L, and a distance in the front-rear direction between the point T1 and the point Le is represented by M. An angleθ1 formed by the line S3 and the horizontal plane H1 is equal to or greater than two degrees and is equal to or smaller than ten degrees. (K1/M) is greater than zero and is equal to or smaller than 0.10. (L/P) is equal to or greater than 0.10 and is equal to or smaller than 0.50. A lower portion 22 positioned below the line S1 is present between the point T1 and the point Le. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
