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, the face defining a striking surface having an ideal impact location at a golf club head origin, the head origin including an x-axis tangential to the face and generally parallel to the ground when the head is at an address position, a y-axis perpendicular to the x-axis and generally parallel to the ground when the head is at the address position, and a z-axis perpendicular to both the x-axis and y-axis, the striking surface having a striking surface height between approximately 45 mm and approximately 65 mm, and a striking surface width between approximately 75 mm and approximately 105 mm;
wherein the golf club head has a moment of inertia about a golf club head center of gravity z-axis generally parallel to the head origin z-axis greater than approximately 490 kg*mm2,wherein the face has a thickness along the head origin x-axis, the thickness increasing in a diverging portion that extends radially outward from the ideal impact location, the thickness being between tmin and tmax for at least 50% of the x-axis coordinates x within a first range between approximately −
10 mm and approximately −
50 mm, and a second range between approximately 10 mm and approximately 50 mm, where
tmin=1.6+0.002378(40−
|x|)2, and
(1)
tmax=2.5+0.002854(40|x|)2; and
(2)wherein the striking surface has an area between approximately 3,500 mm2 and approximately 4,500 mm2.
14 Assignments
0 Petitions
Accused Products
Abstract
A golf club head includes a body defining an interior cavity. The body includes 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. The body has a forward portion and a rearward portion. The club head includes a face positioned at the forward portion of the body. The face defines a striking surface having an ideal impact location at a golf club head origin. Some embodiments of the club head have a high moment of inertia and variable thickness face.
378 Citations
25 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, the face defining a striking surface having an ideal impact location at a golf club head origin, the head origin including an x-axis tangential to the face and generally parallel to the ground when the head is at an address position, a y-axis perpendicular to the x-axis and generally parallel to the ground when the head is at the address position, and a z-axis perpendicular to both the x-axis and y-axis, the striking surface having a striking surface height between approximately 45 mm and approximately 65 mm, and a striking surface width between approximately 75 mm and approximately 105 mm; wherein the golf club head has a moment of inertia about a golf club head center of gravity z-axis generally parallel to the head origin z-axis greater than approximately 490 kg*mm2, wherein the face has a thickness along the head origin x-axis, the thickness increasing in a diverging portion that extends radially outward from the ideal impact location, the thickness being between tmin and tmax for at least 50% of the x-axis coordinates x within a first range between approximately −
10 mm and approximately −
50 mm, and a second range between approximately 10 mm and approximately 50 mm, where
tmin=1.6+0.002378(40−
|x|)2, and
(1)
tmax=2.5+0.002854(40|x|)2; and
(2)wherein the striking surface has an area between approximately 3,500 mm2 and approximately 4,500 mm2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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, the face defining a striking surface having an ideal impact location at a golf club head origin, the head origin including an x-axis tangential to the face and generally parallel to the ground the head is at an address position, a y-axis perpendicular to the x-axis and generally parallel to the ground when the head is at the address position, and a z-axis perpendicular to both the x-axis and y-axis, the striking surface having a striking surface height between approximately 45 mm and approximately 65 mm, and a striking surface width between approximately 75 mm and approximately 105 mm; wherein the golf club head has a moment of inertia about a golf club head center of gravity x-axis generally parallel to the head origin x-axis greater than approximately 280 kg*mm2, wherein the face has a thickness along the head origin z-axis, the thickness increasing in a diverging portion that extends radially outward from the ideal impact location, the thickness being between tmin and tmax for at least 50% of the z-axis coordinates z within a first range between approximately −
10 mm and approximately −
30 mm, and a second range between approximately 10 mm and approximately 30 mm, where
tmin=1.6+0.002378(40−
|x|)2, and
(1)
tmax=2.5+0.002854(40−
|x|)2; and
(2)wherein the striking surface has an area between approximately 3,500 mm2 and approximately 4,500 mm2. - View Dependent Claims (11, 12, 13, 14, 15)
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16. 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, the face defining a striking surface having an ideal impact location at a golf club head origin, the head origin including an x-axis tangential to the face and generally parallel to the ground when the head is at an address position, a y-axis perpendicular to the x-axis and generally parallel to the ground when the head is at the address position, and a z-axis perpendicular to both the x-axis and y-axis, the striking surface having a striking surface width between approximately 75 mm and approximately 105 mm; wherein the golf club head has a moment of inertia about a golf club head center of gravity z-axis generally parallel to the head origin z-axis greater than approximately 490 kg*mm2, and a moment of inertia about a golf club head center of gravity x-axis generally parallel to the head origin x-axis greater than approximately 280 kg*mm2, wherein the face has a thickness along a radial axis extending tangential to and radially outwardly away from the golf club head origin, the thickness increasing in a diverging portion that extends radially outward from the ideal impact location, the thickness being between tmin and tmax along at least 50% of the distances r away from the golf club head origin along the radial axis equal to or greater than approximately 10 mm and equal to or less than approximately 50 mm, where
tmin=1.6+0.002378(40−
r)2, and
(1)
tmax=2.5+0.002854(40−
r)2; and
(2)wherein the striking surface has an area between approximately 3,500 mm2 and approximately 4,500 mm2. - View Dependent Claims (17)
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18. 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, the face defining a striking surface having an ideal impact location at a golf club head origin, the head origin including an x-axis tangential to the face and generally parallel to the ground when the head is at an address position, a y-axis perpendicular to the x-axis and generally parallel to the ground when the head is at the address position, and a z-axis perpendicular to both the x-axis and y-axis, the striking surface having a striking surface height between approximately 45 mm and approximately 65 mm, and a striking surface width between approximately 75 mm and approximately 105 mm; wherein the golf club head has a moment of inertia about a golf club head center of gravity z-axis generally parallel to the head origin z-axis greater than approximately 490 kg*mm2, wherein the face has a bending stiffness along the head origin x-axis, the bending stiffness increasing in a diverging portion that extends radially outward from the ideal impact location, the bending stiffness being between BSmin and BSmax for at least 50% of the x-axis coordinates x within a first range between approximately −
10 mm and approximately −
50 mm, and a second range between approximately 10 mm and approximately 50 mm, where
BSmin=1.1*105[1.6+0.002378(40−
|x|)2]3, and
(1)
BSmax=1.1*105[2.5+0.002854(40−
|x|)2]3; and
(2)wherein the striking surface has an area between approximately 3,500 mm2 and approximately 4,500 mm2. - View Dependent Claims (19, 20, 21)
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22. 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, the face defining a striking surface having an ideal impact location at a golf club head origin, the head origin including an x-axis tangential to the face and generally parallel to the ground when the head is at an address position, a y-axis perpendicular to the x-axis and generally parallel to the ground when the head is at the address position, and a z-axis perpendicular to both the x-axis and y-axis, the striking surface having a striking surface height between approximately 45 mm and approximately 65 mm, and a striking surface width between approximately 75 mm and approximately 105 mm; wherein the golf club head has a moment of inertia about a golf club head center of gravity x-axis generally parallel to the head origin x-axis greater than approximately 280 kg*mm2, wherein the face has a bending stiffness along the head origin z-axis, the bending stiffness increasing in a diverging portion that extends radially outward from the ideal impact location, the bending stiffness being between BSmin and BSmax for at least 50% of the z-axis coordinates z within a first range between approximately −
10 mm and approximately −
30 mm, and a second range between approximately 10 mm and approximately 30 mm, where
BSmm=1.1*105[1.6+0.002378(40−
z)2]3, and
(1)
BSmax=1.1.105[2.5+0.002854(40−
z)2]3; and
(2)wherein the striking surface has an area between approximately 3,500 mm2 and approximately 4,500 mm2. - View Dependent Claims (23, 24, 25)
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Specification