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    • 10. 发明公开
    • Golf ball
    • 高尔夫球。
    • EP0625363A1
    • 1994-11-23
    • EP94303614.5
    • 1994-05-20
    • SUMITOMO RUBBER INDUSTRIES, CO. LTD
    • Hiraoka, Hidenori
    • A63B37/00
    • A63B37/0003A63B37/0034A63B37/0062
    • Disclosed is a golf ball having excellent (soft) hit feeling and excellent durability, which is suitable for using on the driving range. The golf ball has a two-layer structure comprising a core and a cover for coating the core.The compressive strain of the core is 2.8 to 3.8 mm. The hardness distribution of the core (measured by a JIS-C type hardness tester) is adjusted to 65 to 79 at the center, 70 to 80 at the location which is 5 mm away from the center to the surface, 73 to 80 at the location which is 10 mm away from the center to the surface, 75 to 82 at the location which is 15 mm away from the center to the surface and 70 to 85 at the surface, and a difference in hardness between adjacent locations of measurement is within 5. The cover comprises an ionomer resin as the main material the stiffness of the cover is 1400 to 3000 kg/cm². The ball compression is 70 to 100 (PGA system).
    • 公开了一种具有优良(柔软)打击感和优异耐用性的高尔夫球,适用于驾驶范围。 高尔夫球具有两层结构,其包括芯和用于涂覆芯的盖。芯的压缩应变为2.8至3.8mm。 芯部的硬度分布(由JIS-C型硬度计测定)在中心处被调整为65〜79°,距离中心至表面5mm的位置为70〜80°, 距离中心至表面10mm的位置,距离中心至表面15mm的位置为75至82,在表面为70至85,并且相邻测量位置之间的硬度差在 该盖子以离聚物树脂为主要材料,盖子的刚度为1400至3000kg / cm 2。 球压缩为70〜100(PGA系统)。