Patent ID: 7160205
Filing Date: 2007-01-09
Classification: A63B

Abstract:
1. A golf club head having a head volume in a range of from 355 to 450 cc and comprising a hollow body comprising a face portion and sole portion each made of a metal material, the hollow body having a structure producing a ball-hitting sound whose maximum sound pressure level occurs around 6.3 kHz, said structure including: said sole portion comprising a front part and a back part next to the front part, wherein the front part is thicker than the back part and has a substantially constant thickness of from 1.2 to 1.8 mm, and the decrease in the thickness of the sole portion from that of the front part to that of the back part concentrates near the rear edge of the front part; and the surface area of the sole portion being in a range of from 4000 to 5500 mm the front part has a rear edge (K) that is curved convexly toward the club face.