Golf club heads with cavities and inserts and related methods

• US 10,695,629 B2
• Filed: 06/18/2019
• Issued: 06/30/2020
• Est. Priority Date: 04/04/2016
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Karsten Manufacturing Corporation
• Inventors: Petersen, David L., Bryant, Les J., Glover, James D., MacMillan, Richard D., Chen, Xiaojian, Jertson, Martin R., Huang, Yujen, Clarke, Jacob T., Shaw, Tyler A., Shearer, William D., Milleman, Travis D.
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US16/444,298
• Publication Number:
  US 20190329107A1
• Time in Patent Office: 378 Days
• Field of Search: 473324-350, 473287-292
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 53/06 adjustable
• CPC Class Codes: A63B 53/08 with special arrangements for obtaining a variable impact
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence
• CPC Class Codes: A63B 60/54 with means for damping vibrations

Abstract

Golf club heads with cavities and inserts, and methods to manufacture golf club heads with cavities. Various embodiments include a golf club head comprising a body. The body comprises a strikeface at a front of the golf club head, a backface opposite the strikeface, a heel region, a toe region opposite the heel region, a sole, a rear portion at a rear of the golf club head, and a cavity located between the backface and the rear portion. In many embodiments, the body further comprises an insert within the cavity.

Claims

1. A golf club head comprising:

a body comprising;

a strikeface at a front of the golf club head;

a backface opposite the strikeface;

a heel-region;

a toe-region opposite the heel-region;

a sole;

a rear portion at a rear of the golf club head; and

a cavity located between the backface and the rear portion, the cavity comprising;

a face side wall comprising a portion of the backface;

a rear side wall opposite the face side wall, the rear side wall comprising a recess extending from the heel region to the toe-region;

a bottom wall between the face side wall and the rear side wall; and

a width measured from the face side wall to the rear side wall; and

an insert received within the cavity;

the insert comprises;

a back surface configured to be adjacent to the rear side wall of the golf club head, a front surface opposite the back surface, a bottom surface, a top surface opposite the bottom surface, a toe-region side, a heel-region side opposite the toe-region side, one or more lips stacked horizontally between the top surface and the bottom surface, and an elastically deformable material;

wherein the bottom surface comprises one or more flex slots;

wherein the one or more flex slots are open from the front surface to the back surface of the insert;

wherein one or more ribs are positioned on the insert back surface or the insert front surface;

wherein the one or more flex slots are compressed prior to the insert being received within the cavity such that when the insert is received in the cavity, the one or more flex slots expands to an original shape, causing the front surface, back surface, and bottom surface of the insert to abut against the face side wall, the rear side wall, and the bottom wall of the cavity, and thereby create a press fit of the insert.

2. The golf club head of claim 1, wherein the insert comprises a top lip;

wherein the top lip protrudes from the insert top surface and extends perpendicular relative to the insert back surface.

3. The golf club head of claim 2, wherein the top lip extends along a toe end of the toe-region side, the face surface, and a heel end of the heel-region side.

4. The golf club head of claim 2, wherein the top lip extends along a toe end of the toe-region side, the back surface, and a heel end of the heel-region side.

5. The golf club head of claim 2, wherein the top lip extends along a toe end of the toe-region side, the front surface, the back surface, and a heel end of the heel-region side.

6. The golf club head of claim 2, wherein the top lip abuts against a top surface of the rear portion and is configured to act as a leverage ledge to allow removal of the insert.

7. The golf club head of claim 1, wherein the insert comprises a mass ranging from 0.5 gram to 36 grams.

8. The golf club head of claim 1, wherein the one or more flex slots comprise a triangular shape.

9. The golf club head of claim 1, wherein the one or more flex shots comprises two flex slots each located between a toe end of the toe-region side and a heel end of the heel-region side;

such that the insert bottom surface is divided into three segments.

10. A golf club head comprising:

a body comprising;

a strikeface at a front of the golf club head;

a backface opposite the strikeface;

a heel-region;

a toe-region opposite the heel-region;

a sole;

a rear portion at a rear of the golf club head; and

a cavity located between the backface and the rear portion, the cavity comprising;

a face side wall comprising a portion of the backface;

a rear side wall opposite the face side wall, the rear side wall comprising one or more protrusions extending into a portion of the cavity;

a bottom wall between the face side wall and the rear side wall; and

an insert received within the cavity;

wherein;

the insert comprises;

a back surface positioned to be adjacent to the rear side wall of the golf club head;

a front surface opposite the back surface positioned to be adjacent to the face side wall of the golf club head;

wherein one or more ribs are positioned on the insert back surface or the insert front surface;

a bottom surface;

a top surface opposite the bottom surface; and

an elastically deformable material; and

wherein the insert bottom surface further comprises one or more flex slots and one or more lips stacked horizontally between the top surface and the bottom surface;

wherein the one or more flex slots are open from the front surface to the back surface of the insert;

wherein the one or more flex slots are compressed prior to the insert being received within the cavity such that when the insert is received in the cavity, the one or more flex slots expands to an original shape, causing the front surface, back surface, and bottom surface of the insert to abut against the face side wall, the rear side wall, and the bottom wall of the cavity, and thereby create a press fit of the insert.

11. The golf club head of claim 10, wherein the one or more ribs are located on the insert front surface.

12. The golf club head of claim 10, wherein the one or more ribs are located on the insert back surface.

13. The golf club head of claim 10, wherein the one or more ribs are oriented perpendicular to the insert top surface.

14. The golf club head of claim 10, wherein the one or more ribs comprises three or more ribs.

15. The golf club head of claim 14, wherein the one or more ribs are each oriented at different angles relative to the insert top surface.

16. The golf club head of claim 10, wherein the insert comprises a hardness between approximately Shore A 25 to approximately Shore A 35.

17. The golf club head of claim 10, wherein the insert comprises a mass ranging from 0.5 gram to 36 grams.

18. The golf club head of claim 10, wherein the strikeface comprises a thickness ranging from 0.05 inch to 0.20 inch.

19. The golf club head of claim 10, wherein the elastically deformable material of the insert comprises a resin mixed with a powdered metal.

20. The golf club head of claim 19, wherein the insert comprises 1% to 30% powdered metal by volume.