Thread wound golf ball
AssigneeBridgestone Sports Co., Ltd.
InventorsTakashi Maruko, Shinichi Kakiuchi
Life of this patent
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Abstract
A thread-wound golf ball having a liquid center wound by rubber thread and further having a cover placed thereon, characterized by using as the major component of the cover an ionomer whose JIS-C hardness is 70-85, making the thickness of the cover 1.0-1.8 mm, making the outside diameter of the liquid center 27-30 mm, making the center bag hardness of the liquid center 44-62 (in terms of JIS-A hardness), and making the thickness of the center bag 1.8-2.3 mm.
Claims1
A thread-wound golf ball having a liquid center wound by rubber thread and further having a cover placed thereon, wherein the major component of the cover is an ionomer whose JIS-C hardness is 70-85, and wherein the thickness of the cover is 1.0-1.8 mm, the outside diameter of the liquid center is 27-30 mm, the center bag hardness of the liquid center, in terms of JIS-A hardness, is 44-62, and the thickness of the center bag is 1.8-2.3 mm.
Dependencies are inferred from the claim text.