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US 2014/0274461 A1Published application
Golf club heads with optimized characteristics and related methods
AssigneeKarsten Manufacturing Corporation
InventorsBradley D. Schweigert, Ryan M. Stokke
Life of this patent
Estimating the term…
Abstract
Embodiments of golf club heads with optimized characteristics presented herein. Other examples and related methods are also disclosed herein.
Claims24
A golf club head comprising:
- a head body comprising:
- a head front portion;
- a head rear portion;
- a head heel portion;
- a head toe portion;
- a head sole portion;
- a head top portion;
- and
- a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel axis;
- a face portion at the head front portion and comprising:
- a strikeface centerpoint;
- a strikeface perimeter;
- and
- a face height bounded by the strikeface perimeter;
- a head center of gravity;
- and
- at least one of:
- a first performance characteristic;
- or
- a second performance characteristic;
- wherein:
- when the golf club head is at an address position over a ground plane:
- a head vertical axis extends through the head center of gravity and is orthogonal to the ground plane;
- and
- a head horizontal axis extends through the head center of gravity, and is orthogonal to the head vertical axis;
- a loft plane of the golf club head is tangent to the strikeface centerpoint;
- a front plane of the golf club head extends through the strikeface centerpoint and parallel to the hosel axis;
- a head depth plane extends through the strikeface centerpoint, parallel to the head horizontal axis and perpendicular to the loft plane;
- a CG height axis extends through the head center of gravity and intersects the head depth plane perpendicularly at a first intersection point;
- a head CG height of the head center of gravity is measured, along the CG height axis, between the head center of gravity and the first intersection point;
- a head CG depth of the head center of gravity is measured, parallel to the ground plane and orthogonal to the front plane, between:
- a second intersection point located at an intersection between the front plane and the ground plane;
- and
- a third intersection point located at an intersection between the head vertical axis and the ground plane;
- the face height is approximately 33 mm to approximately 71 mm, measured parallel to the loft plane;
- the first performance characteristic comprises:
- the head CG height being less than or equal to approximately 5.08 mm;
- and
- the second performance characteristic comprises:
- a CG performance ratio of less than or equal to 0.56, as defined by (a) 76.2 mm minus the face height, divided by (b) the head CG depth.
37 more elements
A golf club head comprising:
- a head body comprising:
- a head front portion;
- a head rear portion;
- a head heel portion;
- a head toe portion;
- a head sole portion;
- a head top portion;
- and
- a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel axis;
- a face portion coupled to the head front portion and comprising a strikeface,
- the strikeface comprising:
- a strikeface centerpoint;
- a strikeface perimeter;
- and
- a face height;
- and
- a head center of gravity;
- wherein, when the golf club head is at an address position over a ground plane:
- a head vertical axis extends through the head center of gravity and is orthogonal to the ground plane;
- and
- a head horizontal axis extends through the head center of gravity, and is orthogonal to the head vertical axis;
- a loft plane of the golf club head is tangent to the strikeface centerpoint;
- a front plane of the golf club head extends through the strikeface centerpoint and parallel to the hosel axis;
- a head depth plane extends through the strikeface centerpoint, parallel to the head horizontal axis and perpendicular to the loft plane;
- a CG height axis extends through the head center of gravity and intersects the head depth plane perpendicularly at a first intersection point;
- a head CG height of the head center of gravity is measured, along the CG height axis, between the head center of gravity and the first intersection point;
- a head CG depth of the head center of gravity is measured, parallel to the ground plane and orthogonal to the front plane, between:
- a second intersection point located at an intersection between the front plane and the ground plane;
- and
- a third intersection point located at an intersection between the head vertical axis and the ground plane;
- the face height is approximately 33 mm to approximately 71 mm, as delimited by the strikeface perimeter and measured parallel to the loft plane;
- a CG performance ratio between (a) 76.2 mm minus the face height, and (b) the head CG depth, is less than or equal to 0.56;
- the head body comprises a driver-type body;
- a head volume of the golf club head is approximately 420 cc to approximately 470 cc;
- a head weight of the golf club head is approximately 185 grams to approximately 225 grams.
- the head CG height is approximately 0 mm to approximately 3.18 mm;
- the head CG depth is approximately 25 mm to approximately 102 mm;
- and
- the head body comprises a weight structure located towards the sole portion and the rear portion of the head body.
36 more elements
A method for providing a golf club head, the method comprising:
- providing a head body comprising:
- a head front portion;
- a head rear portion;
- a head heel portion;
- a head toe portion;
- a head sole portion;
- a head top portion;
- and
- a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel axis;
- coupling a face portion to the head front portion,
- the face portion comprising a strikeface having:
- a strikeface centerpoint;
- a strikeface perimeter;
- and
- a face height bounded by the strikeface perimeter;
- and
- establishing at least one of:
- a first performance characteristic of the golf club head;
- or
- a second performance characteristic of the golf club head;
- wherein:
- when the golf club head is at an address position over a ground plane:
- a head vertical axis extends through a head center of gravity of the golf club head and is orthogonal to the ground plane;
- and
- a head horizontal axis extends through the head center of gravity, and is orthogonal to the head vertical axis;
- a loft plane of the golf club head is tangent to the strikeface centerpoint;
- a front plane of the golf club head extends through the strikeface centerpoint and parallel to the hosel axis;
- a head depth plane extends through the strikeface centerpoint, parallel to the head horizontal axis and perpendicular to the loft plane;
- a CG height axis extends through the head center of gravity and intersects the head depth plane perpendicularly at a first intersection point;
- a head CG height of the golf club head is measured, along the CG height axis, between the head center of gravity and the first intersection point;
- a head CG depth of the head center of gravity is measured, parallel to the ground plane and orthogonal to the front plane, between:
- a second intersection point located at an intersection between the front plane and the ground plane;
- and
- a third intersection point located at an intersection between the head vertical axis and the ground plane;
- the face height is approximately 33 mm to approximately 71 mm, measured parallel to the loft plane;
- the first performance characteristic comprises:
- the head CG height being less than or equal to approximately 5.08 mm;
- and
- the second performance characteristic comprises:
- a CG performance ratio of less than or equal to 0.56, as defined by (a) 76.2 mm minus the face height, divided by (b) the head CG depth.
37 more elements
Dependencies are inferred from the claim text.