| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a ball that can easily fly high and have a ball trajectory without uncomfortable feeling and make it possible even for an inexperienced person to easily hit when it is hit by a club like a driver or the like carrying a ball far. <P>SOLUTION: In a golf ball having a spherical surface with numerous dimples thereon, the dimples have a diameter of 2 to 6 mm and number in all from 250 to 330, of which at least 60% are large dimples having a diameter of at least 4.5 mm. The volume of space in a dimple below a planar surface circumscribed by an edge of the dimple, summed for all the dimples on the surface of the ball, is from 320 to 360 mm. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
