GOLF CLUB HEAD WITH VERTICAL CENTER OF GRAVITY ADJUSTMENT
First Claim
Patent Images
1. A wood-type golf club head comprising:
- a body comprising a face positioned at a forward portion of the golf club head, a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head and a skirt positioned around a periphery of the golf club head between the sole and crown, wherein the body defines an interior cavity;
wherein the head has a face center of the face at an approximate geometric center of the face, the face 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 generally perpendicular to the x-axis and to the y-axis and generally perpendicular to the ground when the head is ideally positioned;
at least first and second weight ports formed in the body; and
at least one weight configured to be retained at least partially within at least one of the first and second weight ports;
the first and second weight ports being located on the body such that vertical displacement of a center of gravity of the golf club is achieved by placement of one or more weights in at least one of the first and second weight ports;
wherein the vertical displacement of the center of gravity is up to about 2.8 mm.
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Accused Products
Abstract
Golf club heads include at least one weight port situated to retain weights and positioned above an approximate club face geometric center with the club in a standard address position. One, two, or more weight ports can be located above the club face center in a club crown or other portion of a club body. Club head vertical center of gravity can be selected to compensate dynamic loft associated with locating the club head center of gravity well behind the club face. Three-dimensional adjustment of club head center of gravity is possible.
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Citations
35 Claims
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1. A wood-type golf club head comprising:
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a body comprising a face positioned at a forward portion of the golf club head, a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head and a skirt positioned around a periphery of the golf club head between the sole and crown, wherein the body defines an interior cavity; wherein the head has a face center of the face at an approximate geometric center of the face, the face 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 generally perpendicular to the x-axis and to the y-axis and generally perpendicular to the ground when the head is ideally positioned; at least first and second weight ports formed in the body; and at least one weight configured to be retained at least partially within at least one of the first and second weight ports; the first and second weight ports being located on the body such that vertical displacement of a center of gravity of the golf club is achieved by placement of one or more weights in at least one of the first and second weight ports; wherein the vertical displacement of the center of gravity is up to about 2.8 mm. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wood-type golf club head comprising:
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a body comprising a face positioned at a forward portion of the golf club head, a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head and a skirt positioned around a periphery of the golf club head between the sole and crown, wherein the body defines an interior cavity; wherein the head has a face center positioned on the face at an approximate geometric center of the face, the face center 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 generally perpendicular to the x-axis and to the y-axis and generally perpendicular to the ground when the head is ideally positioned; at least first, second and third weight ports formed in the body, each weight port having a volumetric centroid defining its position on the body; and at least one of the first, second and third weight ports being located at a vertically displaced volumetric centroid relative to at least one of the other weight ports; the weight ports being configured to receive and retain one or more weights to vertically displace the center of gravity of the club head within a range of about −
0.9 mm below the face center to about 1.7 mm above the face center. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A wood-type golf club head comprising:
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a body comprising a face positioned at a forward portion of the golf club head, a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head and a skirt positioned around a periphery of the golf club head between the sole and crown, wherein the body defines an interior cavity; wherein the head has a face center positioned on the face at an approximate geometric center of the face, the face center 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 generally perpendicular to the x-axis and to the y-axis and generally perpendicular to the ground when the head is ideally positioned, the head having a center of gravity whose location can be defined relative to the x-axis, y-axis and z-axis; and a plurality of weight ports formed in the body, the plurality of weight ports being arranged on the body to selectively receive and retain one or more weights to vertically displace the center of gravity as much as about −
0.9 mm below the face center and as much as about 1.7 mm above the face center as measured parallel to the z-axis. - View Dependent Claims (29, 30)
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31. A wood-type golf club head comprising:
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a body comprising a face positioned at a forward portion of the golf club head, a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head and a skirt positioned around a periphery of the golf club head between the sole and crown, wherein the body defines an interior cavity; wherein the head has a face center positioned on the face at an approximate geometric center of the face, the face center 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 generally perpendicular to the x-axis and to the y-axis and generally perpendicular to the ground when the head is ideally positioned; a plurality of weight ports formed in the body; and a plurality of weights selectively attachable to one or more of the weight ports to vertically displace the center of gravity up to about 2.8 mm along the z-axis. - View Dependent Claims (32, 33, 34, 35)
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Specification