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 golf club head comprising:
a body comprising a front wall, a sole and a ribbon, the body composed of a non-metallic material;
a crown plate attached to the ribbon and front wall of the body;
a weight piece disposed within a hollow interior formed by the body and crown plate, the weight piece comprising a striking plate insert attached to and supporting the front wall of the body, a first strip extending from a heel end of the striking plate insert to a toe end of the striking plate insert, and a second strip extending from a bottom of the striking plate insert toward a rear end of the body, the weight piece composed of a high density material having a density greater than the density of the material 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 front wall;
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 moment of inertial Izz about the Z-axis through the center of gravity of greater than 3000 g-cm 2 and a moment of inertia Iyy about the Y-axis through the center of gravity in the range from 2000 g-cm 2 to 4000 g-cm 2 .
2. The golf club head according to claim 1 wherein the body is composed of a material selected from the group consisting of polycarbonate, thermoplastic polyurethane, PBT (Polybutylene Terephthalate), blends of polycarbonate and polyurethane, carbon epoxy and plies of pre-preg.
3. The golf club head according to claim 1 wherein the weight piece is composed of a material selected from the group consisting of steel, titanium, a thermoplastic material filled with metal, and a film loaded with a high density material.
4. The golf club head according to claim 3 wherein the high density material for the film loaded with a high density material is selected from the group consisting of copper, tungsten, steel, aluminum, tin, silver, golf and platinum.
5. The golf club head according to claim 1 wherein the body is composed of a thermoplastic urethane material, the weight piece is composed of a steel material, the crown plate is composed of aluminum, and the golf club head has a robustness efficiency parameter of 0.346.
6. The golf club head according to claim 1 wherein the crown plate is composed of a material selected from the group consisting of aluminum, titanium and stainless steel.
7. The golf club head according to claim 1 further comprising a hosel positioned within the hollow interior formed by the body and crown plate.
8. A golf club head comprising:
a body comprising a front wall, a sole and a ribbon, the body composed of a non-metallic material;
a crown plate attached to the ribbon and front wall of the body, the crown plate composed of an aluminum material;
a weight piece disposed within a hollow interior formed by the body and crown plate, the weight piece comprising a striking plate insert attached to and supporting the front wall of the body, a first strip extending from a heel end of the striking plate insert to a toe end of the striking plate insert, and a second strip extending from a bottom of the striking plate insert toward a rear end of the body, the weight piece composed of a steel material;
wherein a center of gravity of the golf club head is located less than approximately 1.7 inches from an exterior surface of the front wall;
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 moment of inertial Izz about the Z-axis through the center of gravity of greater than 3000 g-cm 2 and a moment of inertia Iyy about the Y-axis through the center of gravity in the range from 2000 g-cm 2 to 4000 g-cm 2 .
9. A golf club head comprising:
a body comprising a front wall, a sole and a ribbon, the body composed of a thermoplastic urethane material;
a crown plate attached to the ribbon and front wall of the body, the crown plate composed of an aluminum material;
a weight piece disposed within a hollow interior formed by the body and crown plate, the weight piece comprising a striking plate insert attached to and supporting the front wall of the body, a first strip extending from a heel end of the striking plate insert to a toe end of the striking plate insert, and a second strip extending from a bottom of the striking plate insert toward a rear end of the body, the weight piece composed of a steel material;
a hosel positioned within the hollow interior formed by the body and crown plate, the hosel composed of an aluminum material;
wherein a center of gravity of the golf club head is located less than approximately 1.7 inches from an exterior surface of the front wall;
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 moment of inertial Izz about the Z-axis through the center of gravity of greater than 3000 g-cm 2 and a moment of inertia Iyy about the Y-axis through the center of gravity in the range from 2000 g-cm 2 to 4000 g-cm 2 .