Golf club heads with optimized characteristics and related methods
First Claim
Patent Images
1. A golf club head comprising:
- a head body comprisinga head interior bounded by;
a head front portion;
a head rear portion;
a head heel portion;
a head toe portion;
a head top portion; and
a head sole portion;
anda hosel structure having a bore for receiving a golf club shaft, the bore having a hosel axis;
a head center of gravity;
a head horizontal axis extending through the head center of gravity, from the head heel portion to the head toe portion, and parallel to a ground plane when the golf club head is at an address position over the ground plane;
a hosel moment of inertia about the hosel axis;
a horizontal moment of inertia about the head horizontal axis;
whereinthe hosel moment of inertia is approximately 7000 g·
cm2 to approximately 11000 g·
cm2; and
the horizontal moment of inertia is greater than or equal to 39% of the hosel moment of inertia;
a strikeface having a strikeface centerpoint;
a loft plane tangent to the strikeface centerpoint; and
a weight structure located towards the head sole portion and the head rear portion of the head body;
a clock grid comprises;
a 12 o'"'"'clock ray;
a 3 o'"'"'clock ray;
a 4 o'"'"'clock ray;
a 5 o'"'"'clock ray;
a 8 o'"'"'clock ray; and
a 9 o'"'"'clock ray;
when the golf club head is at the address portion, from a bottom view of the golf club head, the 12 o'"'"'clock ray is aligned with the strikeface centerpoint and orthogonal to a front intersection line between the loft plane and the ground plane;
the clock grid is centered along the 12 o'"'"'clock ray, at a midpoint between a front end of the head front portion and a rear end of the head rear portion;
the 3 o'"'"'clock ray extends towards the head heel portion;
the 9 o'"'"'clock ray extends towards the head toe portion;
a perimeter of the weight structure is bounded between the 4 o'"'"'clock ray and the 9 o'"'"'clock ray; and
a center of gravity of the weight structure is located between the 5 o'"'"'clock ray and the 8 o'"'"'clock ray.
1 Assignment
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Accused Products
Abstract
Embodiments of golf club heads with optimized characteristics including optimizing the center of gravity location as it relates to the head volume, and the hosel moment of inertia relative to the horizontal and vertical moments of inertia, are presented herein. Other examples and related methods are also disclosed herein.
54 Citations
21 Claims
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1. A golf club head comprising:
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a head body comprising a head interior bounded by; a head front portion; a head rear portion; a head heel portion; a head toe portion; a head top portion; and a head sole portion; and a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel axis; a head center of gravity; a head horizontal axis extending through the head center of gravity, from the head heel portion to the head toe portion, and parallel to a ground plane when the golf club head is at an address position over the ground plane; a hosel moment of inertia about the hosel axis; a horizontal moment of inertia about the head horizontal axis;
whereinthe hosel moment of inertia is approximately 7000 g·
cm2 to approximately 11000 g·
cm2; andthe horizontal moment of inertia is greater than or equal to 39% of the hosel moment of inertia; a strikeface having a strikeface centerpoint; a loft plane tangent to the strikeface centerpoint; and a weight structure located towards the head sole portion and the head rear portion of the head body; a clock grid comprises; a 12 o'"'"'clock ray; a 3 o'"'"'clock ray; a 4 o'"'"'clock ray; a 5 o'"'"'clock ray; a 8 o'"'"'clock ray; and a 9 o'"'"'clock ray; when the golf club head is at the address portion, from a bottom view of the golf club head, the 12 o'"'"'clock ray is aligned with the strikeface centerpoint and orthogonal to a front intersection line between the loft plane and the ground plane; the clock grid is centered along the 12 o'"'"'clock ray, at a midpoint between a front end of the head front portion and a rear end of the head rear portion; the 3 o'"'"'clock ray extends towards the head heel portion; the 9 o'"'"'clock ray extends towards the head toe portion; a perimeter of the weight structure is bounded between the 4 o'"'"'clock ray and the 9 o'"'"'clock ray; and a center of gravity of the weight structure is located between the 5 o'"'"'clock ray and the 8 o'"'"'clock ray. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for providing a golf club head, the method comprising:
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providing a head body comprising; a head interior bounded by; a head front portion; a head rear portion; a head heel portion; a head toe portion; a head top portion; and a head sole portion; a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel axis; a strikeface having a strikeface centerpoint; a loft plane tangent to the strikeface centerpoint; and a weight structure located towards the head sole portion and the head rear portion of the head body; a clock grid comprises; a 12 o'"'"'clock ray; a 3 o'"'"'clock ray; a 4 o'"'"'clock ray; a 5 o'"'"'clock ray; a 8 o'"'"'clock ray; and a 9 o'"'"'clock ray; when the golf club head is at the address portion, from a bottom view of the golf club head, the 12 o'"'"'clock ray is aligned with the strikeface centerpoint and orthogonal to a front intersection line between the loft plane and the ground plane; the clock grid is centered along the 12 o'"'"'clock ray, at a midpoint between a front end of the head front portion and a rear end of the head rear portion; the 3 o'"'"'clock ray extends towards the head heel portion; the 9 o'"'"'clock ray extends towards the head toe portion; a perimeter of the weight structure is bounded between the 4 o'"'"'clock ray and the 9 o'"'"'clock ray; and a center of gravity of the weight structure is located between the 5 o'"'"'clock ray and the 8 o'"'"'clock ray; and coupling the golf club shaft to the hosel structure; wherein; a head horizontal axis extends through a head center of gravity of the golf club head, from the head heel portion to the head toe portion, and parallel to a ground plane when the golf club head is at an address position over the ground plane; a head vertical axis extends through the head center of gravity, from the head top portion to the head sole portion, and perpendicular to the ground plane when the golf club head is at address over the ground plane; providing the head body comprises at least one of; establishing a horizontal moment of inertia about the head horizontal axis to be greater than or equal to 39% of a hosel moment of inertia about the hosel axis;
orestablishing a vertical moment of inertia about the head vertical axis to be greater than or equal to 59% of the hosel moment of inertia about the hosel axis. - View Dependent Claims (20)
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21. A golf club head comprising
a head body comprising a head interior bounded by: -
a head front portion; a head rear portion; a head heel portion; a head toe portion; a head top portion; and a head sole portion; and a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel axis; a head center of gravity; a head horizontal axis extending through the head center of gravity, from the head heel portion to the head toe portion, and parallel to a ground plane when the golf club head is at an address position over the ground plane; a hosel moment of inertia about the hosel axis; and a horizontal moment of inertia about the head horizontal axis;
whereinthe hosel moment of inertia is approximately 7000 g·
cm2 to approximately 11000 g·
cm2; andthe horizontal moment of inertia is greater than or equal to 39% of the hosel moment of inertia; a strikeface having a strikeface centerpoint; wherein; the head body comprises a weight structure having a weight center and located towards the head sole portion and the head rear portion; a front plane of the golf club head extends through the strikeface centerpoint of the strikeface and parallel to the hosel axis; a head vertical axis extends between the head center of gravity and the ground plane, being orthogonal to the ground plane when the golf club head is at the address position; a weight center elevation axis extends between the weight center and the ground plane, being orthogonal to the ground plane when the golf club head is at the address position; a head CG depth of the head center of gravity is measured, parallel to the ground plane and orthogonal to the front plane, between; an intersection point at an intersection between the front plane and the ground plane; and an intersection point at an intersection between the head vertical axis and the ground plane; a weight center depth of the weight center is measured, parallel to the ground plane, between; the intersection point of the front plane with the ground plane; and an intersection point of the weight center elevation axis with the ground plane; and a depth ratio, defined by the weight center depth over the head CG depth, is less than 2.54.
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Specification