| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a device which makes the club head 15 and a golf ball collide with excellent operation efficiency by placing the club head 15 in a normal position without fail. SOLUTION: This device comprises the air cannon 1, laser beam irradiator 3, first sensor 5, second sensor 7, opposing device 9, guide rail 11, and mounting stand 13. The club head 15 is mounted on the mounting stand 13. When making a measurement, the opposing device 9 is placed in front of the face 17. Then, the club head is held in a way that four pushing pins 51 come into contact with the face 17 and the gravity point of the face 17 is irradiated with the red laser beam launched from the laser beam radiator. Next, the height of the holding pins 29 is adjusted so that this condition can be kept. Then, a golf ball is launched from the air cannot 11 and collides with the club head 15. The speed of the ball before and after the collision is measured by the detector surface 19.</p> |
