Golf club heads with cavities and inserts and related methods

• US 10,363,466 B2
• Filed: 04/04/2018
• Issued: 07/30/2019
• 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:
  US15/945,666
• Publication Number:
  US 20180221730A1
• Time in Patent Office: 482 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;

wherein;

the insert comprises;

a first component comprising 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, and an elastically deformable material; and

a retainer comprising a top surface, a bottom surface and a plastically deformable material, the retainer is configured to be removably received within the first component of the insert without the use of threads;

wherein the retainer of the insert comprises a width greater than the width of the cavity and a width of the first component of the insert;

wherein when the insert is received in the cavity, the retainer is bent to create a U-shape within the cavity;

wherein the bent retainer exerts a retaining force on the face side wall and the rear side wall to retain the insert in the cavity.

2. The golf club head of claim 1, wherein the first component of the insert comprises one or more slots extending from the front surface to the back surface, and the one or more slots are configured to receive the retainer.

3. The golf club head of claim 2, wherein one or more slots are positioned on the front surface and the back surface of the first component.

4. The golf club head of claim 1, wherein the retainer comprises a first edge having one or more tabs, and a second edge opposite the first edge, the second edge having one or more arms to be received within the recess of the rear side wall.

5. The golf club head of claim 4, wherein the one or more tabs abut the face side wall of the cavity and the one or more arms abut the rear side wall of the cavity, such that the retainer forms a U-shape curve when the insert is positioned in the cavity.

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

7. 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, the back surface of the insert comprising one or more grooves configured to receive the one or more protrusions on the rear side wall of the cavity;

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

a bottom surface;

a top surface opposite the bottom surface; and

an elastically deformable material; and

the insert comprises a hardness between approximately Shore A 10 to approximately Shore A 55;

wherein the one or more grooves extend into a portion of the back surface of the insert to allow for a mechanical interlock of the insert and the body.

8. The golf club head of claim 7, wherein the insert comprises a hardness between approximately Shore A 25 to approximately Shore A 35.

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

10. The golf club head of claim 7, wherein the strikeface comprises a thickness ranging from 0.05 inch to 0.20 inch.

11. The golf club head of claim 7, wherein a contact area of the insert with the backface comprises 15% to 35% of a surface area of the strikeface.

12. The golf club head of claim 7, wherein the elastically deformable material of the insert comprises a resin mixed with a powdered metal.

13. The golf club head of claim 12, wherein the insert comprises 1% to 30% powdered metal by volume.

14. The golf club head of claim 12, wherein the resin comprises a thermoplastic elastomer, or a thermoplastic polyurethane.

15. The golf club head of claim 12, wherein the powdered metal comprises stainless steel.

16. The golf club head of claim 12, wherein the powdered metal comprises tungsten.

17. The golf club head of claim 7, wherein the insert comprises a first component comprising a first material and a second component comprising a second material, where the second component is embedded within the first component.

18. The golf club head of claim 17, wherein the first material comprises a thermoplastic elastomer and the second material comprises spherical tungsten beads.