| 摘要 |
A dimple internal structure of the golf ball is provided to minimize the resistance of the side of the golf ball or backplane by improving the shattering effect of the air colliding in the front surface of the golf ball. In the dimple(110) internal structure of the golf ball, more than one partition protrusion(122) of the specified formation is formed around the bottom surface center of the whole or the partial dimple. Each partition protrusion is integrally formed by a first slope facing the center of dimple and a second declined part turning toward the outer circumference of the dimple. A plurality of dimples are formed in the peripheral part of the golf ball into the concave type. On the bottom surface center of dimple, the groove of the concave type is formed.
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