| 摘要 |
<p>PURPOSE:To turn a head accurately to a target at the right angle at a setting position by a method wherein a reflector and a level are mounted at an upper part of a putter head, the reflector is so arranged to make a target image reflect to eyes with a ball hitting spot placed on the extension of a vertical center line while the level is freely turnably supported to keep a circular mirror surface horizontal. CONSTITUTION:A reflector 9 and a level 11 are mounted adjacent to each other at an upper part of a putter head 1. The reflector 9 is so arranged parallel that its mirror surface is parallel with the putter head 1 viewed from the plane while being inclined to meet a positional relationship so that the target image projected on the mirror surface is reflected to the eyes of a player with a ball hitting spot (p) placed on the extension of a vertical centerline 12 of the mirror surface. The level 11 has a circular flat mirror in a transparent hollow spherical case 15 having a horizontal line 17 and a vertical line 18 mounted on the putter head 1 while a rotor with a weight at the lower end thereof to horizontally keep the circular flat mirror constant is freely rotatably supported in all directions.</p> |
