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US 12,708,820 B2Granted
Club head having balanced impact and swing performance characteristics
AssigneeKarsten Manufacturing Corporation
InventorsJoshua B. Matthews, Ryan M. Stokke, Erik M. Henrikson
Life of this patent
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Abstract
Embodiments of golf club heads having balanced impact and swing performance characteristics with reversed crown and sole curvatures are generally described herein. Other embodiments may be described and claimed.
Claims7
A golf club head comprising:
- a body having a front end, a back end opposite the front end, a crown, a sole opposite the crown, a heel, a toe opposite the heel, a skirt adjoining the crown and the sole, and a hosel structure having a hosel axis extending centrally through a bore in the hosel structure;
- the hosel structure further comprises a hosel height measured in a direction from a hosel end to the sole, in a direction parallel to the hosel axis;
- wherein the hosel height is between 1.75 inch and 1.85 inch;
- a strikeface positioned at the front end and defining a geometric center of the strikeface;
- wherein a strikeface perimeter is located along an outer edge of the strikeface where a strikeface curvature deviates from a strikeface bulge and/or a strikeface roll radius of curvature, a loft plane tangent to the geometric center of the strikeface, and a head depth plane extending through the geometric center of the strikeface from the heel to the toe, perpendicular to the loft plane;
- wherein the geometric center of the strikeface defines a coordinate system having an origin located at the geometric center of the strikeface;
- the coordinate system having an X′ axis, a Y′ axis, and a Z′ axis;
- wherein the X′ axis extends through the geometric center of the strikeface in a direction from the heel to the toe of the golf club head;
- wherein the Y′ axis extends through the geometric center of the strikeface in a direction from the crown to the sole of the golf club head and perpendicular to the X′ axis;
- and wherein the Z′ axis extends through the geometric center of the strikeface in a direction from the front end to the back end of the golf club head, and perpendicular to the X′ axis and the Y′ axis;
- wherein an X′Y′ plane extends through the X′ axis and the Y′ axis, an X′Z′ plane extends through the X′ axis and the Z′ axis, and a Y′Z′ plane extends through the Y′ axis and the Z′ axis;
- wherein the X′Y′ plane, the X′Z′ plane, and the Y′Z′ plane are all perpendicular to one another and intersect at the geometric center of the strikeface;
- wherein:
- a loft angle of the golf club head is less than 16 degrees;
- a volume of the golf club head is greater than 425 cc;
- a crown transition region, positioned between the strikeface and the crown, including a crown heel to toe radius of curvature extending along an entire top edge of the strikeface from near the heel to the toe of the golf club head;
- wherein the crown heel to toe radius of curvature is in a range of 3.0 to 3.5 inches;
- a sole transition region, positioned between the strikeface and the sole, the sole transition region including a sole heel to toe radius curvature extending along an entire bottom edge of the strikeface from near the heel to the toe of the golf club head;
- wherein an entirety of the sole heel to toe radius is in a range of 6.25 to 7.75 inches;
- further comprising a plurality of turbulators positioned upon the crown;
- and
- the crown comprises one or more thin regions each having a thickness, measured from an outer surface of the crown to an inner surface of the crown, of 0.017 to 0.020 inch, wherein the thickness of each thin region decreases in a direction from the strikeface towards the back end.
19 more elements
Dependencies are inferred from the claim text.