GOLF CLUB
First Claim
Patent Images
1. A golf club, comprising:
- a golf club shaft;
a golf club grip; and
a golf club head, the 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 a proper address position, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is at a proper 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 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,
(2)wherein the striking surface has an area greater than about 3,500 mm2,wherein the golf club has a club length between about 46 inches and 48 inches, andwherein the golf club has total mass between about 270 grams and about 300 grams.
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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.
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Citations
25 Claims
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1. A golf club, comprising:
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a golf club shaft; a golf club grip; and a golf club head, the 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 a proper address position, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is at a proper 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 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,
(2)wherein the striking surface has an area greater than about 3,500 mm2, wherein the golf club has a club length between about 46 inches and 48 inches, and wherein the golf club has total mass between about 270 grams and about 300 grams. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A golf club, comprising:
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a golf club shaft; a golf club grip; and a golf club head, the 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 a proper address position, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is at a proper 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, andwherein the face has a thickness along the head origin z-axis, 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−
|z|)2, and
(1)
tmax=2.5+0.002854(40−
|z|)2,
(2)wherein the striking surface has an area greater than about 3,500 mm2, wherein the golf club has a club length between about 46 inches and 48 inches, and wherein the golf club has total mass between about 270 grams and about 300 grams. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A golf club, comprising:
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a golf club shaft; a golf club grip; and a golf club head, the 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 a proper address position, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is at a proper 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, andwherein the face has a thickness along a radial axis extending tangential to and radially outwardly away from the golf club head origin, 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,
(2)wherein the striking surface has an area greater than about 3,500 mm2, wherein the golf club has a club length between about 46 inches and 48 inches, and wherein the golf club has total mass between about 270 grams and about 300 grams. - View Dependent Claims (16, 17)
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18. A golf club, comprising:
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a golf club shaft; a golf club grip; and a golf club head, the 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 a proper address position, a y-axis generally perpendicular to the x-axis and generally parallel to the ground when the head is at a proper 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, andwherein the face has a bending stiffness along the head origin x-axis, 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,
(2)wherein the striking surface has an area greater than about 3,500 mm2, wherein the golf club has a club length between about 46 inches and 48 inches, and wherein the golf club has total mass between about 270 grams and about 300 grams. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification