Patent ID: 8876633
Filing Date: 2014-11-04
Classification: A63B

Abstract:
1. A golf club head composed of carbon fiber-reinforced plastic, titanium, a titanium alloy, stainless steel, maraging steel, an aluminum alloy, a magnesium alloy, or a tungsten-nickel alloy, said club head having a volume ranging from 100 cc to 470 cc and comprising a sole surface, wherein a face-back direction is defined as an X direction and a toe-heel direction is defined as a Y direction, said golf club head comprising a section A 1 and a section A 2 , wherein section A wherein section A wherein a recess exists in a position on the X directional back side from the section A said golf club head being configured so that, when it is combined with a golf club shaft into a golf club and said club is being employed to address a golf ball during play, an angle between the shaft axis and a ground plane is defined as θ, and the angle θ exists so that at least a point belonging to the section A