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Golf club heads with optimized characteristics and related methods

  • US 9,168,429 B2
  • Filed: 03/14/2013
  • Issued: 10/27/2015
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
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1. 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, the strikeface centerpoint is positioned at a midpoint of the face height;

    a head center of gravity; and

    at least one of;

    a first performance characteristic;

    ora 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, parallel to the hosel axis, and orthogonal to the ground plane;

    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 head CG depth is approximately 25 mm to approximately 102 mm;

    the head CG height is approximately 0 mm to approximately 5.08 mm;

    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;

    the head body comprises a weight structure located towards the sole portion and the rear portion of the head body;

    a clock grid comprises at least;

    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 position over the ground plane, 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 by 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.

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