Golf club head
A golf club head ( 20 ) having optimized inertial properties and center of gravity is disclosed. The golf club head ( 20 ) preferably has a volume between 300 cubic centimeters and 500 cubic centimeters. The golf club head ( 20 ) has a center of gravity located less than 1.7 inches from an exterior surface of a front wall ( 30 ). The positioning of the center of gravity of the golf club head ( 20 ) and the optimized inertial properties provide the golf club with greater ball spin robustness and better performance.
1. A wood-type golf club head comprising:
a body having a crown, a sole and a hollow interior;
a striking plate insert attached over an opening in a front of the body, the striking plate insert being composed of a material having a density greater than that of the body; and
a weighting member disposed on an aft end of the body;
wherein a center of gravity of the golf club head is located less than approximately 1.7 inches from an exterior surface of the striking plate insert;
wherein the golf club head has a robustness efficiency parameter of less than approximately 0.410;
wherein the golf club head has a volume ranging from 300 cubic centimeters to 500 cubic centimeters;
wherein the golf club head has a width that ranges from 4.0 inches to 5.5 inches and a height that ranges from 2.0 inches to 3.5 inches;
wherein the golf club head has a coefficient of restitution ranging from 0.80 to 0.94;
wherein the golf club head has a moment of inertial I zz about the Z-axis through the center of gravity of greater than 3000 g-cm 2 and a moment of inertia I yy about the Y-axis through the center of gravity in the range from 2000 g-cm 2 to 4000 g-cm 2 .
2. The wood-type golf club head according to claim 1 wherein the body is composed of a non-metallic material.
3. The wood-type golf club head according to claim 1 wherein the striking plate insert is composed of a material selected from the group consisting of titanium, titanium alloy, steel alloys and amorphous materials.
4. The wood-type golf club head according to claim 1 wherein the body is composed of a material selected from the group consisting of magnesium, aluminum, polycarbonate, thermoplastic polyurethane, PBT (Polybutylene Terephthalate), blends of polycarbonate and polyurethane, carbon epoxy and plies of pre-preg.
5. The wood-type golf club head according to claim 1 wherein the body is composed of a magnesium alloy material, the striking plate is composed of a titanium alloy material, and the weighting member is composed of a tungsten alloy material.
6. The wood-type golf club head according to claim 1 wherein the body is composed of a plies of pre-preg material, the striking plate is composed of a titanium alloy material, and the weighting member is composed of a tungsten alloy material.
7. The wood-type golf club head according to claim 1 wherein the body is composed of plies of pre-peg material, the striking plate insert is composed of a steel material and the golf club head has a robustness efficiency parameter of 0.270.
8. The wood-type golf club head according to claim 1 wherein the body is composed of plies of pre-preg material, the striking plate insert is composed of a steel material and the golf club head has a robustness efficiency parameter of 0.303.
9. The wood-type golf club head according to claim 1 wherein the body is composed of a magnesium material, the striking plate insert is composed of a steel material and the golf club head has a robustness efficiency parameter of 0.334.