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CLUB HEADS WITH VARYING GROOVE PARAMETERS AND RELATED METHODS

  • US 20160059089A1
  • Filed: 08/24/2015
  • Published: 03/03/2016
  • Est. Priority Date: 08/26/2014
  • Status: Active Grant
First Claim
Patent Images

1. ) A set of golf club heads, the set comprising:

  • a first golf club head comprising;

    a first top end and a first bottom end opposite the first top end;

    a first front end and a first rear end opposite the first front end;

    a first toe end and a first heel end opposite the first toe end;

    a first club head body comprising a first club face portion;

    a first club shaft axis comprising a first club top-to-bottom axis extending between the first top end and the first bottom end, a first club front-to-rear axis extending between the first front end and first rear end, and a first club heel-to-toe axis extending between the first heel end and the first toe end; and

    a first club address configuration;

    anda second golf club head comprising;

    a second top end and a second bottom end opposite the second top end;

    a second front end and a second rear end opposite the second front end;

    a second toe end and a second heel end opposite the second toe end;

    a second club head body comprising a second club face portion;

    a second club shaft axis comprising a second club top-to-bottom axis extending between the second top end and the second bottom end, a second club front-to-rear axis extending between the second front end and second rear end, and a second club heel-to-toe axis extending between the second heel end and the second toe end; and

    a second club address configuration;

    wherein;

    the first club face portion comprises a first club face surface and at least one first club groove, the first club face portion being located at the first front end;

    the first club top-to-bottom axis, the first club front-to-rear axis, and the first club heel-to-toe axis are approximately perpendicular to each other;

    when the first golf club head is positioned in the first club address configuration;

    the first club top-to-bottom axis is approximately perpendicular to a first ground plane; and

    the first golf club head comprises a first club loft angle greater than or equal to approximately 55 degrees;

    each first club groove, respectively, of the at least one first club groove comprises a first club groove base, a first club groove sidewall adjacent to the first club groove base, a first club groove edge point, a first club groove edge radius at the first club groove edge point, and a first club groove central axis approximately perpendicular to the first club groove base;

    the at least one first club groove is symmetric across the first club groove central axis in a first club cross plane, the first club cross plane being approximately parallel to a first club cross plane formed by the first club top-to-bottom axis and the first club front-to-rear axis;

    the first club edge point satisfies a Thirty Degree Rule;

    the first club groove base comprises a first groove base width approximately parallel to the first club face surface and extending approximately perpendicular to the first club heel-to-toe axis;

    the first club groove sidewall forms a first club groove sidewall angle with the first club groove central axis;

    the second club face portion comprises a second club face surface and at least one second club groove, the second club face portion being located at the second front end;

    the second club top-to-bottom axis, the second club front-to-rear axis, and the second club heel-to-toe axis are approximately perpendicular to each other;

    when the second golf club head is positioned in the second club address configuration;

    the second club top-to-bottom axis is approximately perpendicular to a second ground plane; and

    the second golf club head comprises a second club loft angle less than approximately 55 degrees;

    each second club groove, respectively, of the at least one second club groove comprises a second club groove base, a second club groove sidewall adjacent to the second club groove base, a second club groove edge point, a second club groove edge radius at the second club groove edge point, and a second club groove central axis approximately perpendicular to the second club groove base;

    the at least one second club groove is symmetric across the second club groove central axis in a second club cross plane, the second club cross plane being approximately parallel to a second cross plane formed by the second club top-to-bottom axis and the second club front-to-rear axis;

    the second club edge point satisfies the Thirty Degree Rule;

    the second club groove base comprises a second groove base width approximately parallel to the second club face surface and extending approximately perpendicular to the second club heel-to-toe axis;

    the second club groove sidewall forms a second club groove sidewall angle with the second club groove central axis;

    the first club groove edge radius is less than the second club groove edge radius; and

    at least one of;

    the first club groove base width is less than the second club groove base width;

    orthe first club groove sidewall angle is greater than the second club groove sidewall angle.

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