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    • 10. 发明公开
    • 골프공
    • 高尔夫球
    • KR1020130028000A
    • 2013-03-18
    • KR1020120094898
    • 2012-08-29
    • 던롭 스포츠 가부시키가이샤
    • 마츠야마요시코
    • A63B37/00A63B37/06
    • A63B37/0003A63B37/0031A63B37/0033A63B37/0044A63B37/0045A63B37/0062A63B37/0064A63B37/0076A63B37/0092A63B37/0096B32B7/02B32B25/08B32B25/16B32B27/40C08K5/09
    • PURPOSE: A golf ball is provided to fly high after driver shot and be high in ability after short iron. CONSTITUTION: A golf ball comprises; a spherical core, a inner intermediate layer which is outside of the core, an outer intermediate layer which is outside of the inner intermediate layer and a cover which is outside of the outer intermediate layer. An area from the center of the core to the outer layer of the core is obtained by dividing the core by 12.5% of the radius of the core. As a result, 9 points of the core is obtained. When distance(%) from the center of the 9 points and the incline rate of JIS-C of the 9 points are plotted in a graph, R2 of a linear approximation curve which is a result of the least square method is 0.95. JIS-C incline rate from the surface of the core is H(100) and JIS-C incline rate from the center of the core has a distance gap, H(H(100)-H(0)), which is over 15. [Reference numerals] (AA) Hardness(JIS-C); (BB) Distance from a center point(%)
    • 目的:提供高尔夫球,在驾驶员射击后高空飞行,短铁后能力高。 构成:高尔夫球包括: 球形芯,位于芯外的内中间层,位于内中间层外部的外中间层和位于外中间层外侧的盖。 通过将芯除以芯的半径的12.5%来获得从芯的中心到芯的外层的区域。 结果获得了9点核心。 当将9点的中心距离(%)和9点的JIS-C的倾斜率绘制在曲线图中时,作为最小二乘法的结果的线性近似曲线的R2为0.95。 从芯的表面的JIS-C倾斜率为H(100),从芯的中心的JIS-C倾斜率为距离间隙H(H(100)-H(0))超过15 (标号)(AA)硬度(JIS-C); (BB)距离中心点的距离(%)