Patent ID: 9278267
Filing Date: 2016-03-08
CPC Classification: A63B

Claim Text:
1. A golf club head comprising: a hollow club head body having an external surface with a heel portion, a toe portion, a crown portion, a sole portion, an interior cavity, and a front opening, wherein the front opening opens to the interior cavity; a face insert support structure located at the front opening, the support structure including a peripheral member and a rear support member, the rear support member having a front surface and a rear surface; a face insert attached at the front opening and closing the front opening of the body; at least two undercut fill structures attached to a portion of the rear surface of the rear support member; wherein the at least two undercut fill structures each form a return angle with respect to a vertical x-z plane and are attached to one of the crown portion and sole portion; wherein the front opening defines an aperture to an interior.