| 摘要 |
PURPOSE: A dimple structure of a golf ball is provided to prevent deformation of the golf ball even by an impact force applied thereto as well as reduce a drag force of air. CONSTITUTION: In the golf ball comprising a spherical center inner core, an outer core filled at the outside of the inner core with an appropriate thickness, and a plurality of impact transmission members radially inserted into the outer core and adapted to directly transmit a hitting force to the inner core, ends of the impact transmission members protrude out of the golf ball so that they define a polyhedral surface portion(400) consisting of regular triangles. From the polyhedral surface portion, embossing dimples(410) protrude outward. |
