Golf club head
First Claim
1. A golf club head, comprising:
- a body, defining an interior cavity and comprising;
a sole portion, positioned at a bottom portion of the golf club head;
a crown portion, positioned at a top portion of the golf club head, wherein an entirety of an exterior surface of the crown portion is convex;
a skirt portion, positioned around a periphery of the golf club head between the sole portion and the crown portion;
a forward region; and
a rearward region; and
a face portion, coupled to the body at the forward region of the body and comprising a striking face with an area of at least 3500 mm^2 and a maximum height from a ground plane of at least about 50 mm;
wherein there is a face-to-crown transition where the face portion connects to the crown portion proximate the forward region of the body and a skirt-to-crown transition where the skirt portion connects to the crown portion proximate the rearward region;
wherein in a y-z plane passing through a club head origin the crown height continuously increases starting from the face-to-crown transition up to a local maximum; and
wherein;
the golf club head has a peak crown height, from the ground plane, of at least about 60 mm;
a volume of the golf club head is at least about 370 cm3;
a location of a center-of-gravity of the golf club head is at a minimum distance (Zup) away from the ground plane;
the difference between the Zup and half of the peak crown height is less than about −
5.75 mm;
a z-axis moment of inertia of the golf club head about a z-axis, passing through the center-of-gravity of the golf club head and perpendicular to the ground plane, is greater than about 300 kg-mm2; and
when the golf club head is in the address position on the ground plane;
a crown height of the golf club head, at a head origin y-axis coordinate of zero, is less than 65 mm;
a crown height of the golf club head, at a head origin y-axis coordinate of 20 mm, is more than about 62 mm; and
a crown height of the golf club head, at a head origin y-axis coordinate of 90 mm, is less than about 32 mm.
13 Assignments
0 Petitions
Accused Products
Abstract
Described herein is a golf club head that includes a body that includes a sole portion, a crown portion, a skirt portion, a forward region, and a rearward region. The golf club head also includes a face portion including a striking face with a maximum height from the ground plane of at least about 50 mm. The golf club head has a peak crown height, from the ground plane, of at least about 60 mm. A volume of the golf club head is at least about 370 cm3. A location of a center-of-gravity of the golf club head is at a minimum distance (Zup) away from the ground plane. The difference between Zup and half of the peak crown height is less than about −5.75 mm. A z-axis moment of inertia of the golf club head about a CG z-axis is greater than about 300 kg-mm2.
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Citations
23 Claims
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1. A golf club head, comprising:
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a body, defining an interior cavity and comprising; a sole portion, positioned at a bottom portion of the golf club head; a crown portion, positioned at a top portion of the golf club head, wherein an entirety of an exterior surface of the crown portion is convex; a skirt portion, positioned around a periphery of the golf club head between the sole portion and the crown portion; a forward region; and a rearward region; and a face portion, coupled to the body at the forward region of the body and comprising a striking face with an area of at least 3500 mm^2 and a maximum height from a ground plane of at least about 50 mm; wherein there is a face-to-crown transition where the face portion connects to the crown portion proximate the forward region of the body and a skirt-to-crown transition where the skirt portion connects to the crown portion proximate the rearward region; wherein in a y-z plane passing through a club head origin the crown height continuously increases starting from the face-to-crown transition up to a local maximum; and wherein; the golf club head has a peak crown height, from the ground plane, of at least about 60 mm; a volume of the golf club head is at least about 370 cm3; a location of a center-of-gravity of the golf club head is at a minimum distance (Zup) away from the ground plane; the difference between the Zup and half of the peak crown height is less than about −
5.75 mm;a z-axis moment of inertia of the golf club head about a z-axis, passing through the center-of-gravity of the golf club head and perpendicular to the ground plane, is greater than about 300 kg-mm2; and when the golf club head is in the address position on the ground plane; a crown height of the golf club head, at a head origin y-axis coordinate of zero, is less than 65 mm; a crown height of the golf club head, at a head origin y-axis coordinate of 20 mm, is more than about 62 mm; and a crown height of the golf club head, at a head origin y-axis coordinate of 90 mm, is less than about 32 mm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A golf club head, comprising:
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a body, defining an interior cavity and comprising; a sole portion, positioned at a bottom portion of the golf club head; a crown portion, positioned at a top portion of the golf club head, wherein an entirety of an exterior surface of the crown portion is convex; a skirt portion, positioned around a periphery of the golf club head between the sole portion and the crown portion; a forward region; and a rearward region; and a face portion, coupled to the body at the forward region of the body and comprising a striking face with an area of at least 3500 mm^2 and a maximum height from a ground plane of at least about 50 mm; wherein there is a face-to-crown transition where the face portion connects to the crown portion proximate the forward region of the body and a skirt-to-crown transition where the skirt portion connects to the crown portion proximate the rearward region; wherein in a y-z plane passing through a club head origin the crown height continuously increases starting from the face-to-crown transition up to a local maximum; wherein; the golf club head has a peak crown height, from the ground plane, of at least about 60 mm; a volume of the golf club head is at least about 370 cm3; a location of a center-of-gravity of the golf club head is at a minimum distance (Zup) away from the ground plane; the difference between the Zup and half of the peak crown height is less than about −
5.75 mm;a z-axis moment of inertia of the golf club head about a z-axis, passing through the center-of-gravity of the golf club head and perpendicular to the ground plane, is greater than about 300 kg-mm2; a ratio of the peak crown height to a height of a forwardmost point of the crown portion from the ground plane, when the golf club head is in the address position on the ground plane, is greater than about 1.12; and a ratio of the peak crown height to a height of a rearwardmost point of the crown portion from the ground plane, when the golf club head is in the address position on the ground plane, is greater than about 3.3. - View Dependent Claims (16, 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 portion, positioned at a bottom portion of the golf club head; a crown portion, positioned at a top portion of the golf club head, wherein an entirety of an exterior surface of the crown portion is convex; a skirt portion, positioned around a periphery of the golf club head between the sole portion and the crown portion; a forward region; and a rearward region; and a face portion, coupled to the body at the forward region of the body and comprising a striking face with an area of at least 3500 mm^2 and a maximum height from a ground plane of at least about 50 mm; wherein there is a face-to-crown transition where the face portion connects to the crown portion proximate the forward region of the body and a skirt-to-crown transition where the skirt portion connects to the crown portion proximate the rearward region; wherein in a y-z plane passing through a club head origin the crown height continuously increases starting from the face-to-crown transition up to a local maximum; wherein; the golf club head has a peak crown height, from the ground plane, of at least about 60 mm; a volume of the golf club head is at least about 370 cm3; a location of a center-of-gravity of the golf club head is at a minimum distance (Zup) away from the ground plane; the difference between the Zup and half of the peak crown height is less than about −
5.75 mm;a z-axis moment of inertia of the golf club head about a z-axis, passing through the center-of-gravity of the golf club head and perpendicular to the ground plane, is greater than about 300 kg-mm2; and a crown height, in millimeters, of at least 90% of the crown portion of the golf club head along a plane passing through a center of the striking face of the face portion and perpendicular to the ground plane, when the golf club head is in the address position on the ground plane, is approximately between, −
130.73x4+270.76x3−
269.99x2+91.737x+59 and −
107.96x4+223.87x3−
250.86x2+92.751x+50, where x is a normalized forward-to-rearward depth of the golf club head. - View Dependent Claims (19, 20, 21, 22)
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23. A golf club head, comprising:
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a body, defining an interior cavity and comprising; a sole portion, positioned at a bottom portion of the golf club head; a crown portion, positioned at a top portion of the golf club head, wherein an entirety of an exterior surface of the crown portion is convex; a skirt portion, positioned around a periphery of the golf club head between the sole portion and the crown portion; a forward region; and a rearward region; and a face portion, coupled to the body at the forward region of the body and comprising a striking face with an area of at least 3500 mm^2 and a maximum height from a ground plane of at least about 50 mm; wherein there is a face-to-crown transition where the face portion connects to the crown portion proximate the forward region of the body and a skirt-to-crown transition where the skirt portion connects to the crown portion proximate the rearward region; wherein in a y-z plane passing through a club head origin the crown height continuously increases starting from the face-to-crown transition up to a local maximum; and wherein; the golf club head has a peak crown height, from the ground plane, of at least about 60 mm; a volume of the golf club head is at least about 370 cm3; a location of a center-of-gravity of the golf club head is at a minimum distance (Zup) away from the ground plane; the difference between the Zup and half of the peak crown height is less than about −
5.75 mm; anda z-axis moment of inertia of the golf club head about a z-axis, passing through the center-of-gravity of the golf club head and perpendicular to the ground plane, is greater than about 300 kg-mm2.
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Specification