| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a golf putter with a clearly recognizable mark and an accurate right core by which a ball is hit cleanly while taking good aim, a sense of distance is excellently obtained to reduce a miss shot and the ball is shot regardless of course in any situation. SOLUTION: 1) A triangle with an obtuse angle vertex 1 is formed in the upper part of the right core of a sweet spot 5. 2) A diamond shape face 6 is formed where the diamond sweet spot 5 is provided on the rear surface of the face. 3) A reverse triangle is formed on a sole 4 in parallel with the diamond face 6. 4) The triangle on the sole is formed on the reverse triangle on the sole 4.</p> |
