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US 5,704,852 AGranted
Thread wound golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsAkira Kato, Tadahiro Ebisuno
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AssigneeSumitomo Rubber Industries, Ltd.
InventorsAkira Kato, Tadahiro Ebisuno
Estimating the term…
The present invention provides a thread wound golf ball which keeps good hit feeling inherently holding in thread wound golf balls and attains long flying distance which is equal to that attained by the two-piece solid golf ball. The thread wound golf ball comprises a center composed of a vulcanized molded article of a rubber composition, a thread rubber layer formed on said center and a cover covering on said thread rubber layer, wherein said center has a diameter of 30 to 35 mm and a strain amount formed between an initial loading of 10 kg and a final loading of 30 kg is 1.2 to 2.5 mm. The cover of the thread rubber layer has many dimples thereon and the product of total volume of the dimples and the diameter of the center is 8,500 to 11,000 mm.sup.3.mm.
A thread wound golf ball comprising a center composed of a vulcanized molded article of a rubber composition, a thread rubber layer formed on said center and a cover covering said thread rubber layer, wherein (a) said center has a diameter of 30 to 35 mm and a strain amount formed between an initial loading of 10 Kg and a final loading of 30 Kg is 1.2 to 2.5 mm and (b) the cover has many dimples thereon, and the product of total volume of the dimples and the diameter of the center is 8,500 to 11,000 mm.sup.3.mm.
Dependencies are inferred from the claim text.