| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a three-piece ball which has good hit feeling, flies a long distance and has excellent spinning performance. SOLUTION: The three-piece ball is obtained by winding a rubber code on a center to form a thread and rubber layer and covering the outside of it with a cover. In the case of setting the rate of the volume of the thread and rubber layer occupying the volume of the golf ball to be 10 to 20%, deformation (mm) from the state of loading 98N to the center to the state of loading 1274N to be A and deformation (mm) from the state of loading 98N to a three-piece core obtained by winding the rubber code on to the center to the state of loading 1274N to be B, (A-B) is 0.5 to 0.7 and the shore D hardness is 50 to 60 characteristically.</p> |
