Golf club head
First Claim
Patent Images
1. A golf club head, comprising:
- a body defining an interior cavity and comprising a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion, and a skirt positioned around a periphery between the sole and crown, wherein the body has a forward portion and a rearward portion; and
a face positioned at the forward portion of the body and including a striking surface, the striking surface having a golf club head origin positioned at a geometric center of the striking surface, the golf club head origin including an x-axis tangential to the face and generally parallel to the ground when the head is ideally positioned, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is ideally positioned, and a z-axis perpendicular to both the x-axis and y-axis;
wherein the x-axis extends in a positive direction from the golf club head origin toward a heel portion of the golf club head, the y-axis extends in a positive direction from the golf club head origin towards the rearward portion of the golf club head, and the z-axis extends in a positive direction from the golf club head origin towards the crown of the golf club head;
wherein the ratio of a moment of inertia about a golf club head center of gravity x-axis generally parallel to the origin x-axis to a moment of inertia about a golf club head center of gravity z-axis generally parallel to the head origin z-axis is greater than approximately 0.6;
at least one mass element secured to or integrally formed in the body having a mass between approximately 3 g and approximately 23 g;
wherein the at least one mass element is located heel-ward of the golf club head center of gravity and forward of the golf club head center of gravity; and
at least one weight port positioned below the crown, and the at least one weight port is configured to retain a weight.
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Accused Products
Abstract
Disclosed herein are various embodiments of a golf club head having improved mass distribution characteristics. The golf club head includes a body and a face positioned at a forward portion of the body. The golf club head also includes one or more mass elements positioned at predetermined locations about the head. The mass elements assist in achieving a desired relationship between the moment of inertia about a center of gravity x-axis and the moment of inertia about a center of gravity z-axis.
251 Citations
21 Claims
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1. A golf club head, comprising:
a body defining an interior cavity and comprising a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion, and a skirt positioned around a periphery between the sole and crown, wherein the body has a forward portion and a rearward portion; and a face positioned at the forward portion of the body and including a striking surface, the striking surface having a golf club head origin positioned at a geometric center of the striking surface, the golf club head origin including an x-axis tangential to the face and generally parallel to the ground when the head is ideally positioned, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is ideally positioned, and a z-axis perpendicular to both the x-axis and y-axis; wherein the x-axis extends in a positive direction from the golf club head origin toward a heel portion of the golf club head, the y-axis extends in a positive direction from the golf club head origin towards the rearward portion of the golf club head, and the z-axis extends in a positive direction from the golf club head origin towards the crown of the golf club head; wherein the ratio of a moment of inertia about a golf club head center of gravity x-axis generally parallel to the origin x-axis to a moment of inertia about a golf club head center of gravity z-axis generally parallel to the head origin z-axis is greater than approximately 0.6; at least one mass element secured to or integrally formed in the body having a mass between approximately 3 g and approximately 23 g; wherein the at least one mass element is located heel-ward of the golf club head center of gravity and forward of the golf club head center of gravity; and at least one weight port positioned below the crown, and the at least one weight port is configured to retain a weight. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A golf club head, comprising:
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a body defining an interior cavity and comprising a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion, and a skirt positioned around a periphery between the sole and crown, wherein the body has a forward portion and a rearward portion; and a face positioned at the forward portion of the body and including a striking surface, the striking surface having a golf club head origin positioned at a geometric center of the striking surface, the golf club head origin including an x-axis tangential to the face and generally parallel to the ground when the head is ideally positioned, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is ideally positioned, and a z-axis perpendicular to both the x-axis and y-axis; wherein the x-axis extends in a positive direction from the golf club head origin toward a heel portion of the golf club head, the y-axis extends in a positive direction from the golf club head origin towards the rearward portion of the golf club head, and the z-axis extends in a positive direction from the golf club head origin towards the crown of the golf club head; wherein the ratio of a moment of inertia about a golf club head center of gravity x-axis generally parallel to the origin x-axis to a moment of inertia about a golf club head center of gravity z-axis generally parallel to the head origin z-axis is greater than approximately 0.6; at least one weight port positioned below the crown, and the at least one weight port is configured to retain a weight; at least one mass element secured to or integrally formed in the body having a mass between approximately 10 g and approximately 30 g; wherein the at least one mass element is located rearward of the golf club head center of gravity; wherein the at least one mass element has a head origin y-axis coordinate between about 90 mm and about 120 mm and the at least one weight port is located proximate the at least one mass element. - View Dependent Claims (14, 15, 16)
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17. A golf club head, comprising:
a body defining an interior cavity and comprising a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion, and a skirt positioned around a periphery between the sole and crown, wherein the body has a forward portion and a rearward portion; and a face positioned at the forward portion of the body and including a striking surface, the striking surface having a golf club head origin positioned at a geometric center of the striking surface, the golf club head origin including an x-axis tangential to the face and generally parallel to the ground when the head is ideally positioned, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is ideally positioned, and a z-axis perpendicular to both the x-axis and y-axis; wherein the x-axis extends in a positive direction from the golf club head origin toward a heel portion of the golf club head, the y-axis extends in a positive direction from the golf club head origin towards the rearward portion of the golf club head, and the z-axis extends in a positive direction from the golf club head origin towards the crown of the golf club head; wherein the ratio of a moment of inertia about a golf club head center of gravity x-axis generally parallel to the origin x-axis to a moment of inertia about a golf club head center of gravity z-axis generally parallel to the head origin z-axis is greater than approximately 0.6; a first mass element secured to or integrally formed in the body having a mass between approximately 3 g and approximately 23 g; a second mass element secured to or integrally formed in the body having a mass between approximately 10 g and approximately 30 g; wherein the first mass element is located proximate the forward portion of the golf club head and heel-ward of the golf club head center of gravity; wherein the second mass element is located proximate the rearward portion of the golf club head; wherein the moment of inertia about the golf club head center of gravity z-axis is between approximately 450 kg·
mm2 and approximately 600 kg·
mm2;wherein the second mass element has a head origin y-axis coordinate between about 90 mm and about 120 mm and a head origin z-axis coordinate between about −
20 mm and about 10 mm; andthe first mass element has a head origin y-axis coordinate between about 0 mm and about 30 mm. - View Dependent Claims (18, 19, 20, 21)
Specification