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 plate 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 the crown, wherein the body defines an interior cavity;
at least a first weight port and a second weight port formed in the body;
at least a first weight having a first weight mass between about 1 gram and about 18 grams and configured to be retained at least partially within the first weight port formed in the body; and
at least a second weight having a second weight mass between about 1 gram and about 18 grams and configured to be retained at least partially within the second weight port formed in the body;
wherein the head has a golf club head origin positioned on the face plate at an approximate geometric center of the face plate, the head origin including an x-axis tangential to the face plate 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, wherein a positive x-axis extends toward a club head heel, a positive y-axis extends toward the cavity, and a positive z-axis extends away from the ground with the head ideally positioned, andwherein the first weight has a head origin z-axis coordinate between about 5 mm and about 15 mm and a head origin x-axis coordinate between about 0 mm and about 20 mm, and the second weight has a head origin z-axis coordinate between about −
30 mm and about −
10 mm and a head origin x-axis coordinate between about 0 mm and about 20 mm, and a volume of the golf club head is between about 180 cm3 and about 600 cm3; and
wherein a difference between the first weight mass and the second weight mass multiplied by a distance between the first weight and the second weight is between about 950 g-mm and about 14,250 g-mm.
12 Assignments
0 Petitions
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.
-
Citations
5 Claims
-
1. A wood-type golf club head comprising:
-
a body comprising a face plate 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 the crown, wherein the body defines an interior cavity; at least a first weight port and a second weight port formed in the body; at least a first weight having a first weight mass between about 1 gram and about 18 grams and configured to be retained at least partially within the first weight port formed in the body; and at least a second weight having a second weight mass between about 1 gram and about 18 grams and configured to be retained at least partially within the second weight port formed in the body; wherein the head has a golf club head origin positioned on the face plate at an approximate geometric center of the face plate, the head origin including an x-axis tangential to the face plate 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, wherein a positive x-axis extends toward a club head heel, a positive y-axis extends toward the cavity, and a positive z-axis extends away from the ground with the head ideally positioned, and wherein the first weight has a head origin z-axis coordinate between about 5 mm and about 15 mm and a head origin x-axis coordinate between about 0 mm and about 20 mm, and the second weight has a head origin z-axis coordinate between about −
30 mm and about −
10 mm and a head origin x-axis coordinate between about 0 mm and about 20 mm, and a volume of the golf club head is between about 180 cm3 and about 600 cm3; andwherein a difference between the first weight mass and the second weight mass multiplied by a distance between the first weight and the second weight is between about 950 g-mm and about 14,250 g-mm.
-
-
2. A wood-type golf club head, comprising:
-
a body comprising a face plate 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 the crown, wherein the body defines an interior cavity, wherein the head has a golf club head origin positioned on the face plate at an approximate geometric center of the face plate, the head origin including an x-axis tangential to the face plate 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, wherein a positive x-axis extends toward a club heel, a positive y-axis extends toward the cavity, and a positive z-axis extends away from the ground with the head ideally positioned; at least a first weight port and a second weight port formed in the body; and at least a first weight having a first weight mass configured to be retained at least partially within the first weight port and at least a second weight having a second weight mass configured to be retained at least partially within the second weight port, wherein the first weight when retained within the first weight port has a head origin z-axis coordinate between about 5 mm and about 15 mm and a head origin x-axis coordinate between about 0 mm and about 20 mm, and the second weight when retained in the second weight port has a head original z-axis coordinate between about −
30 mm and about −
10 mm and a head origin x-axis coordinate between about 0 mm and about 20 mm; andwherein a center of gravity of the head is situated at a predetermined head origin y-coordinate that provides a dynamic loft, and a head origin z-coordinate that at least partially compensates the dynamic loft; and wherein a difference between the first weight mass and the second weight mass multiplied by a distance between the first weight and the second weight is between about 950 g-mm and about 14,250 g-mm. - View Dependent Claims (3)
-
-
4. A wood-type golf club head, comprising:
-
a body comprising a face plate 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 the crown, wherein the body defines an interior cavity; at least a first weight port formed in an upper rear portion of the body; at least a first weight having a first weight mass configured to be retained at least partially within the first weight port; second and third weight ports situated in the club head body, wherein the second weight port is situated at a toe portion of the club head and the third weight port is situated at a heel portion of the club head; second and third weights having second and third weight masses, respectively, configured to be at least partially retained in the second and third weight ports, respectively; and wherein a difference between the first weight mass and the second weight mass multiplied by a distance between the first weight and the second weight is between about 950 g-mm and about 14,250 g-mm. - View Dependent Claims (5)
-
Specification