Patent ID: 8133136
Filing Date: 2012-03-13
Classification: A63B

Abstract:
1. A multi-piece solid golf ball comprising a solid core, a cover, at least one intermediate layer interposed therebetween, and a plurality of dimples on a surface of the ball, wherein the respective initial velocities (m/s) of the core, a sphere I composed of the core encased by the intermediate layer, and the golf ball, as measured by a method set forth in the Rules of Golf using an initial velocity measuring apparatus of the same type as a USGA drum rotation-type initial velocity instrument, satisfy formula A below, the respective deflections (mm) of the core, the sphere I composed of the core encased by the intermediate layer, and the golf ball, when compressed under a final load of 130 kgf from an initial load of 10 kgf, satisfy formula B below, and a relationship between the thickness of the intermediate layer and that of the cover layer satisfies formula D below: wherein the cover has a material hardness that is higher than a material hardness of the intermediate layer material hardness, and which satisfies formula C below: