Solid center type thread wound golf ball

Abstract

The present invention provides a solid center type thread wound golf ball, of which flight distance is largely improved. The present invention related to a solid center type thread wound golf ball comprising a solid center, a thread rubber layer formed on the solid center, and a cover layer covering the thread rubber layer, wherein assuming that a deformation amount when applying from an initial load of 9.8 N to a final load of 29.4 N is represented as A (mm), and a diameter of the solid center is represented as B (mm), the golf ball satisfies the following formulae: 13.0−0.33 B≦A≦ 13.8−0.33 B 27≦ B≦ 34.

What is claimed is:  
     
         1 . A solid center type thread wound golf ball comprising a solid center, a thread rubber layer formed on the solid center, and a cover layer covering the thread rubber layer, wherein 
 assuming that a deformation amount when applying from an initial load of 9.8 N to a final load of 29.4 N is represented as A (mm), and a diameter of the solid center is represented as B (mm), the golf ball satisfies the following formulae:    13.0−0.33 B≦A≦ 13.8−0.33 B  27≦ B≦ 34.    
     
     
         2 . The solid center type thread wound golf ball according to    claim 1   , wherein the cover layer has a Shore D hardness of 45 to 60 and a thickness of 1 to 2 mm.