CPC A63B 53/0475 (2013.01) [A63B 60/54 (2015.10); A63B 2053/0479 (2013.01); A63B 2209/00 (2013.01)] | 20 Claims |
1. A golf club head comprising:
a body portion being hollow to define an interior cavity, the body portion comprising a toe portion with a toe portion edge, a heel portion with a heel portion edge, a front portion, a back portion with a back wall portion, a top portion with a top portion edge, and a sole portion with a sole portion edge;
a face portion coupled to the front portion to enclose the interior cavity, the face portion comprising:
a front surface configured to strike a golf ball;
a plurality of front grooves on the front surface, each front groove having a front groove width and a front groove depth;
a back surface opposite the front surface;
a face perimeter defined by a face toe edge, a face heel edge, a face top edge, and a face sole edge;
a first back groove portion on the back surface, the first back groove portion having a first back groove portion width and a first back groove portion depth, a distance from any portion of the first back groove portion to the face toe edge being less than a distance from any portion of the first back groove portion to the face heel edge;
a second back groove portion on the back surface, the second back groove portion having a second back groove portion width and a second back groove portion depth, a distance from any portion of the second back groove portion to the face top edge being less than a distance from any portion of the second back groove portion to the face sole edge; and
a third back groove portion on the back surface, the third back groove portion having a third back groove portion width and a third back groove portion depth, a distance from any portion of the third back groove portion to the face heel edge being less than a distance from any portion of the third back groove portion to the face toe edge,
wherein the first back groove portion width is greater than or equal to the front groove width and the first back groove portion depth is less than or equal to the front groove depth,
wherein the second back groove portion width is greater than or equal to the front groove width and the second back groove portion depth is less than or equal to the front groove depth, and
wherein the third back groove portion width is greater than or equal to the front groove width and the third back groove portion depth is less than or equal to the front groove depth.
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