Patent ID: 9623293
Date: 2017-04-18
CPC Classifications: A63B,Y10T

Claim:
1. A golf club head having a hollow therein and a head volume of not less than 100 cc and less than 350 cc, and comprising a head main body and a substantially cup-shaped face member which are united with each other, wherein the face member integrally includes a face portion having a club face for hitting a ball, and a turnback extending backwardly of the head from a peripheral edge of the club face, an inner surface on the hollow side, of the face member is provided with a groove extending along the boundary of the turnback with the face portion, the face member is a press-formed part whose turnback is bent by press working, said groove is a sole-side groove extending along only a sole-side part of the boundary, and the sole-side groove extends in the toe-heel direction of the head by at least 5 mm toward the toe and toward the heel of the head from a position in the toe-heel direction corresponding to that of a sweet spot of the club face.