Club heads with varying groove parameters and related methods

Patent metadata

Field	Value
Publication number	US-11224784-B2
Application number	US-201916696805-A
Country	US
Kind code	B2
Filing date	Nov 26, 2019
Priority date	Aug 26, 2014
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

Some embodiments include a first golf club head and a second golf club head. The first golf club head includes a body having a face portion, and the second golf club head includes a body having a face portion. Meanwhile, the first club face portion comprises a face surface and at least one first club groove, and the second club face portion comprises a face surface and at least one second club groove. An edge radius of the first club head groove(s) can be less than an edge radius of the second club head groove(s), a base width of the first club head groove(s) can be less than a base width of the second club head groove(s), and/or a sidewall angle of the first club head groove(s) can be greater than a sidewall angle of the second club head groove(s). Other embodiments of related club heads and methods are also disclosed.

First claim

What is claimed is:

1. A set of golf club heads, the set of golf club heads comprising:
a first golf club head comprising a first club face portion; and
a second golf club head comprising a second club face portion;
wherein:
the first club face portion comprises a first club face surface and multiple first club grooves;
each first club groove, respectively, of the multiple first club grooves comprises a first club groove base, a first club groove sidewall adjacent to the first club groove base, a first club groove length dimension, a first club groove central axis approximately perpendicular to the first club groove base, and a first club groove cross sectional area approximately perpendicular to the first club groove length dimension and intersecting the first club groove central axis;
the first club groove central axis of all grooves of the multiple first club grooves are spaced apart by a first club groove pitch;
the first club groove sidewall forms a first club groove sidewall angle;
each first groove of the multiple first club grooves comprises a first club groove edge point and a first club groove edge radius at the first club groove edge point;
the second club face portion comprises a second club face surface and multiple second club grooves;
each second club groove, respectively, of the multiple second club grooves comprises a second club groove base, a second club groove sidewall adjacent to the second club groove base, a second club groove central axis approximately perpendicular to the second club groove base, and a second club groove cross sectional area approximately perpendicular to the second club groove length dimension and intersecting the second club groove central axis;
the second club groove central axis of all grooves of the multiple second club grooves are spaced apart by a second club groove pitch;
the second club groove sidewall forms a second club groove sidewall angle;
each second groove of the multiple second club grooves comprises a second club groove edge point and a second club groove edge radius at the second club groove edge point;
the first club groove edge radius is less than the second club groove edge radius;
the first club groove sidewall angle is greater than the second club groove sidewall angle; and
the first club groove pitch is different than the second club groove pitch.

2. The set of golf club heads of claim 1 , wherein:
the first golf club head comprises a first club loft angle greater than or equal to approximately 45 degrees; and
the second golf club head comprises a second club loft angle less than approximately 45 degrees.

3. The set of golf club heads of claim 1 , wherein:
the first golf club head comprises a first club loft angle greater than or equal to approximately 47 degrees; and
the second golf club head comprises a second club loft angle less than approximately 47 degrees.

4. The set of golf club heads of claim 1 , wherein:
the first club groove edge radius or the second club groove edge radius is greater than or equal to approximately 0.007 centimeter and less than or equal to approximately 0.026 centimeter.

5. The set of golf club heads of claim 1 , wherein:
the first groove sidewall angle or the second club groove sidewall angle is greater than or equal to approximately 21 degrees and less than or equal to approximately 27 degrees.

6. The set of golf club heads of claim 1 , wherein:
each first club groove of the multiple first club grooves comprises a first club groove depth measured between the first club face surface and the first club groove base;
each second club groove, respectively, of the multiple second club grooves comprises a second club groove depth measured between the second club face surface and the second club groove base; and
the first club groove depth is approximately equal to the second club groove depth.

7. The set of golf club heads of claim 6 , wherein:
the first club groove depth is approximately 0.04 centimeter.

8. The set of golf club heads of claim 1 , wherein:
the first club groove pitch is constant between all grooves of the multiple first grooves.

9. The set of golf club heads of claim 1 , wherein:
each first club groove of the multiple first club grooves comprises a first club groove edge point width measured approximately perpendicular to the first club groove central axis and between the first club groove edge point and the first club groove central axis; and
the first club groove edge point width is approximately 0.037 centimeters.

10. The set of golf club heads of claim 1 , wherein:
the first club groove pitch is greater than or equal to approximately 0.330 centimeter and less than or equal to approximately 0.366 centimeter.

11. A set of golf club heads, the set of golf club heads comprising:
a first golf club head comprising a first club face portion and a first club loft angle; and
a second golf club head comprising a second club face portion and a second club loft angle;
wherein:
the first club face portion comprises a first club face surface and multiple first club grooves;
each first club groove, respectively, of the multiple first club grooves comprises a first club groove base, a first club groove sidewall adjacent to the first club groove base, a first club groove length dimension, a first club groove central axis approximately perpendicular to the first club groove base, and a first club groove cross sectional area approximately perpendicular to the first club groove length dimension and intersecting the first club groove central axis;
the first club groove central axis of all grooves of the multiple first club grooves are spaced apart by a first club groove pitch;
the first club groove sidewall forms a first club groove sidewall angle;
each first groove of the multiple first club grooves comprises a first club groove edge point and a first club groove edge radius at the first club groove edge point;
the second club face portion comprises a second club face surface and multiple second club grooves;
each second club groove, respectively, of the multiple second club grooves comprises a second club groove base, a second club groove sidewall adjacent to the second club groove base, a second club groove central axis approximately perpendicular to the second club groove base, and a second club groove cross sectional area approximately perpendicular to the second club groove length dimension and intersecting the second club groove central axis;
the second club groove central axis of all grooves of the multiple second club grooves are spaced apart by a second club groove pitch;
the second club groove sidewall forms a second club groove sidewall angle;
each second club groove of the multiple second club grooves comprises a second club groove edge point and a second club groove edge radius at the second club groove edge point;
the first club loft angle is different than the second club loft angle;
the first club groove edge radius is less than the second club groove edge radius;
the first club groove sidewall angle is greater than the second club groove sidewall angle; and
the first club groove pitch is different than the second club groove pitch.

12. The set of golf club heads of claim 11 , wherein:
the first club loft angle is greater than or equal to approximately 45 degrees; and
the second club loft angle is less than approximately 45 degrees.

13. The set of golf club heads of claim 11 , wherein:
the first club loft angle is greater than or equal to approximately 47 degrees; and
the second club loft angle is less than approximately 47 degrees.

14. The set of

Assignees

• Karsten Mfg Corp

Inventors

• Jertson Martin
• Stokke Ryan
• Greer Evan

Classifications

• A63B53/005

  Club sets · CPC title

• A63B53/047 Primary

  iron-type · CPC title

• A63B53/0408

  characterised by specific dimensions, e.g. thickness · CPC title

• A63B53/0445

  Details of grooves or the like on the impact surface · CPC title

• A63B53/04 Primary

  Heads · CPC title