CPC A63B 53/0475 (2013.01) [A63B 60/54 (2015.10); A63B 2053/0479 (2013.01); A63B 2209/00 (2013.01)] | 20 Claims |
15. A golf club head comprising:
a front portion including a face portion, the face portion comprising:
an outer face portion surrounding a face opening;
a face insert portion coupled to the outer face portion to close the face opening, the face insert portion comprising:
a first portion;
a second portion surrounding the first portion; and
a third portion surrounding the second portion;
a front groove located at a front surface of the face insert portion;
a back groove located at a rear surface of the face insert portion;
a first thickness associated with the first portion of the face insert portion;
a second thickness associated with the second portion of the face insert portion;
a third thickness associated with the third portion of the face insert portion;
a fourth thickness associated with a connective portion between a perimeter edge of the face insert portion and a perimeter edge of the face opening; and
a fifth thickness associated with the outer face portion,
wherein the first thickness is greater than the third thickness,
wherein the first thickness and the third thickness are each greater than the fifth thickness,
wherein the second thickness varies between the first thickness and the third thickness,
wherein the fourth thickness varies between the third thickness and the fifth thickness,
wherein the front groove and the back groove define an inner area portion and an outer area portion of the face portion,
wherein the inner area portion defines a portion of the face portion for striking a golf ball,
wherein the outer area portion defines a peripheral portion of the face portion,
wherein the front groove and the back groove each partially overlaps with the second portion and the third portion of the face insert portion,
wherein the front groove and the back groove are configured to enhance deflection and rebounding of the inner area portion during impact with the golf ball, and
wherein the front groove has a groove length that is the same or about the same as a groove length of the back groove.
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