Localized milled golf club face
First Claim
Patent Images
1. A wood-style golf club head comprising:
- a toe portion, a heel portion, a crown, and a sole;
a strike face and a body that cooperate to define a hollow internal club head volume, the strike face further comprising a ball striking surface having a surface texture characteristic of milling;
wherein the strike face is disposed at a loft angle of from 8 degrees to 14 degrees;
the surface texture is uniform across the entire strike face when measured in any one direction and comprises a plurality of peaks, a plurality of valleys, and a reference mid-plane extending in between the plurality of peaks and the plurality of valleys, wherein below the reference mid-plane is a negative distance, and above the reference mid-plane is a positive distance, and the plurality of peaks and the plurality of valleys extend an average maximum distance of at least −
200 micro inches (−
5.08 micro meters) to at least 200 micro inches (5.08 micro meters);
the surface texture further comprises a center portion that is surrounded by a peripheral portion;
the central portion is round and comprises a concentric milling pattern;
the peripheral portion comprises an emanating ray milling pattern;
the surface texture further comprises an average surface roughness (RA), representing an arithmetic average value of absolute surface deviations relative to a mean center line, a surface void parameter (WVoid), representing an average depth of the plurality of valleys relative to a closed reference surface created using a morphologic closing filter applied to the surface texture, and a surface contact parameter (WVDCL), representing the amount of contact between the closed reference surface and the surface texture; and
wherein the surface texture, measured within at least one of a vertical cutting plane or a second cutting plane that is orthogonal to both the vertical cutting plane and the ball striking surface, is characterized by at least one of;
a ratio of RA to WVoid being greater than about 4;
or, a WVDCL parameter being greater than about 24%.
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Abstract
A wood-style golf club head includes a strike face and a body that cooperate to define a hollow internal club head volume. The strike face formed from a strike plate having an outer perimeter and a frame surrounding the strike plate. The strike plate is affixed to the frame across the entire outer perimeter. The strike plate and frame define a continuous ball striking surface that has a surface texture characteristic of milling that extends continuously across both the strike plate and the frame.
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Citations
19 Claims
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1. A wood-style golf club head comprising:
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a toe portion, a heel portion, a crown, and a sole; a strike face and a body that cooperate to define a hollow internal club head volume, the strike face further comprising a ball striking surface having a surface texture characteristic of milling; wherein the strike face is disposed at a loft angle of from 8 degrees to 14 degrees; the surface texture is uniform across the entire strike face when measured in any one direction and comprises a plurality of peaks, a plurality of valleys, and a reference mid-plane extending in between the plurality of peaks and the plurality of valleys, wherein below the reference mid-plane is a negative distance, and above the reference mid-plane is a positive distance, and the plurality of peaks and the plurality of valleys extend an average maximum distance of at least −
200 micro inches (−
5.08 micro meters) to at least 200 micro inches (5.08 micro meters);the surface texture further comprises a center portion that is surrounded by a peripheral portion; the central portion is round and comprises a concentric milling pattern; the peripheral portion comprises an emanating ray milling pattern; the surface texture further comprises an average surface roughness (RA), representing an arithmetic average value of absolute surface deviations relative to a mean center line, a surface void parameter (WVoid), representing an average depth of the plurality of valleys relative to a closed reference surface created using a morphologic closing filter applied to the surface texture, and a surface contact parameter (WVDCL), representing the amount of contact between the closed reference surface and the surface texture; and wherein the surface texture, measured within at least one of a vertical cutting plane or a second cutting plane that is orthogonal to both the vertical cutting plane and the ball striking surface, is characterized by at least one of;
a ratio of RA to WVoid being greater than about 4;
or, a WVDCL parameter being greater than about 24%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wood-style golf club head comprising:
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a toe portion, a heel portion, a crown, and a sole; a strike face and a body that cooperate to define a hollow internal club head volume, the strike face further comprising a ball striking surface having a surface texture characteristic of milling; wherein the strike face is disposed at a loft angle of from 8 degrees to 14 degrees; the surface texture is uniform across the entire strike face when measured in any one direction and comprises a plurality of peaks, a plurality of valleys, and a reference mid-plane extending in between the plurality of peaks and the plurality of valleys, wherein below the reference mid-plane is a negative distance, and above the reference mid-plane is a positive distance, and the plurality of peaks and the plurality of valleys extend an average maximum distance of at least −
200 micro inches (−
5.08 micro meters) to at least 200 micro inches (5.08 micro meters);the surface texture comprises a concentric pattern emanating from a central point on the strike face; the surface texture further comprises an average surface roughness (RA), representing an arithmetic average value of absolute surface deviations relative to a mean center line, a surface void parameter (WVoid), representing an average depth of the plurality of valleys relative to a closed reference surface created using a morphologic closing filter applied to the surface texture, and a surface contact parameter (WVDCL), representing the amount of contact between the closed reference surface and the surface texture; and wherein the surface texture, measured within at least one of a vertical cutting plane or a second cutting plane that is orthogonal to both the vertical cutting plane and the ball striking surface, is characterized by at least one of;
a ratio of RA to WVoid being greater than about 4;
or, a WVDCL parameter being greater than about 24%. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification