Club heads with varying groove parameters and related methods

Patent metadata

Field	Value
Publication number	US-11998809-B2
Application number	US-202217648264-A
Country	US
Kind code	B2
Filing date	Jan 18, 2022
Priority date	Aug 26, 2014
Publication date	Jun 4, 2024
Grant date	Jun 4, 2024

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 comprising:
a first golf club head comprising:
a first club head body comprising a first club face portion; and
a second golf club head comprising:
a second club head body comprising a second club face portion;
wherein:
the first club face portion comprises a first club face surface and multiple first club grooves;
the first golf club head comprises a first club loft angle less than or equal to approximately 65 degrees;
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 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 first club groove base comprises a first groove base width;
the first club groove sidewall forms a first club groove sidewall angle;
wherein the first club face surface further comprises a first filleted transition such that the first groove sidewall interfaces with the first filleted transition at a first groove sidewall transition point and the first club face surface interfaces with the first filleted transition at a first face surface transition point such that the first groove edge point is located between the first groove sidewall transition point and the first face surface transition point;
the second club face portion comprises a second club face surface and multiple second club grooves;
the second golf club head comprises a second club loft angle less than the first loft angle;
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 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 second club groove base comprises a second groove base width;
the second club groove sidewall forms a second club groove sidewall angle;
wherein the second club face surface further comprises a second filleted transition such that the second groove sidewall interfaces with the second filleted transition at a second groove sidewall transition point and the second club face surface interfaces with the second filleted transition at a second face surface transition point such that the second groove edge point is located between the second groove sidewall transition point and the second face surface transition point;
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; or
the first club groove sidewall angle is greater than the second club groove sidewall angle.

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

3. The set of golf club heads of claim 1 wherein:
the first club groove edge radius is greater than or equal to approximately 0.015 centimeters and less than or equal to approximately 0.026 centimeters.

4. The set of golf club heads of claim 1 wherein:
when the first loft angle is greater than or equal to 45 degrees and less than or equal to 55 degrees then the first club groove sidewall angle is greater than or equal to approximately 13 degrees and less than or equal to approximately 19 degrees.

5. The set of golf club heads of claim 1 wherein:
when the first loft angle is greater than or equal to 56 degrees and less than or equal to 60 degrees then the first club groove sidewall angle is greater than or equal to approximately 13 degrees and less than or equal to approximately 19 degrees.

6. The set of golf club heads of claim 1 wherein:
each first club groove, respectively, 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; and
the first club groove depth of each first club groove, respectively, of the multiple first club grooves is approximately the same.

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

8. The set of golf club heads of claim 1 wherein:
each first club groove, respectively, 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.

9. The set of golf club heads of claim 8 wherein:
the first club groove depth is approximately 0.04 centimeters.

10. The set of golf club heads of claim 1 wherein:
each first club groove, respectively, of the multiple first club grooves comprises a first club groove edge point depth measured approximately parallel to the first club groove central axis and between the first club groove edge point and the first club face surface; and
the first club groove edge point depth is approximately 0.004 centimeters.

11. The set of golf club heads of claim 1 wherein:
each first club groove, respectively, 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.

12. The set of golf club heads of claim 1 wherein:
the first club head and the second club head may comprise one or more metal materials.

13. The set of golf club heads of claim 12 wherein:
the one or more metal materials are chosen from a group consisting of 17-4 stainless steel, 431 stainless steel, 8620 carbon steel, and 1025 carbon steel.

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

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

16. The set of golf club heads of claim 1 wherein:
a first groove fade angle is defined as an angle that a first line tangent to the first face surface transition point forms with the first face surface; and
a second groove fade angle is defined as an angle that a second line tangent to the second face surface transition point forms with the second face surface.

17. The set of golf club heads of claim 16 wherein:
the first groove fade angle is approximately 12 degrees; and
the second groove fade angle is approximately 12 degrees.

18. The set of golf club heads of claim 1 wherein:
the first groove base width is greater than or equal to approximately 0.0350 centimeter and less than or equal to approximately 0.0414 centimeter.

19. The set of golf club heads of claim 1 wherein:
the first club groove

Assignees

• Karsten Mfg Corp

Inventors

• Jertson Martin
• Stokke Ryan
• Greer Evan

Classifications

• A63B53/04 Primary

  Heads · CPC title

• A63B53/047 Primary

  iron-type · CPC title

• A63B53/005

  Club sets · 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