Method of finishing exterior surface of golf club head

Patent metadata

Field	Value
Publication number	US-10661129-B2
Application number	US-201815952954-A
Country	US
Kind code	B2
Filing date	Apr 13, 2018
Priority date	Dec 5, 2017
Publication date	May 26, 2020
Grant date	May 26, 2020

Abstract

A method of finishing an exterior surface of a golf club head includes providing a golf club head having an exterior surface that includes a first surface region, a second surface region, and a third surface region. The method further includes steps of applying a first surface finish to at least the third surface region, applying a first masking to at least the first and third surface regions, applying a second surface finish to the second surface region, removing the first masking, applying a second masking to at least the second and third surface regions, applying a third surface finish to the first surface region, and removing the second masking.

First claim

What is claimed is:

1. A method of finishing an exterior surface of a golf club head, the method comprising the steps of:
(a) providing a golf club head having an exterior surface that includes a first surface region, a second surface region, and a third surface region, wherein the third surface region is at least partially located between the first and second surface regions, and the first, second, and third surface regions are mutually exclusive of each other and, in combination, form a contiguous portion of the exterior surface;
subsequent to step (a), (b) applying a first surface finish to at least the third surface region of the exterior surface of the golf club head;
subsequent to step (b), (c) applying a first masking to at least the first and third surface regions of the exterior surface of the golf club head;
subsequent to step (c), (d) applying a second surface finish to the second surface region of the exterior surface of the golf club head;
subsequent to step (d), (e) removing the first masking;
subsequent to step (e), (f) applying a second masking to at least the second and third surface regions of the exterior surface of the golf club head;
subsequent to step (f), (g) applying a third surface finish to the first surface region of the exterior surface of the golf club head; and
subsequent to step (g), (h) removing the second masking,
wherein the first, second, and third surface finishes are each different from each other.

2. The method of claim 1 , wherein the step (b) of applying a first surface finish further comprises surface polishing, resulting in a highly reflective appearance.

3. The method of claim 1 , wherein the step (d) of applying a second surface finish further comprises surface roughening resulting in a semi-gloss appearance.

4. The method of claim 3 , wherein the step (d) of applying a second surface finish further comprises media blasting.

5. The method of claim 1 , wherein the step (g) of applying a third surface finish further comprises surface roughening resulting in a matte appearance.

6. The method of claim 5 , wherein the step (g) of applying a third surface finish further comprises abrading using a brush wheel.

7. The method of claim 1 , wherein the step (c) of applying a first masking further comprises, using a flexible tape having a first side edge, a second side edge, and a substantially constant width measured between the first and second side edges, aligning at least one of the first and second side edges of the flexible tape with a boundary formed between the third surface region and the second surface region.

8. The method of claim 7 , wherein the boundary follows an arcuate path.

9. The method of claim 7 , wherein the third surface region comprises a concave surface portion.

10. The method of claim 1 , wherein the second region is circumscribed, in its entirety, by the third region.

11. A method of finishing an exterior surface of a sports apparatus, the method comprising the steps of:
(a) providing a sports apparatus having an exterior surface that includes a first surface region, a second surface region, and a third surface region, wherein the third surface region is at least partially located between the first and second regions, and the first, second, and third surface regions are mutually exclusive of each other and, in combination, form a contiguous portion of the exterior surface;
subsequent to step (a), (b) polishing a portion of the exterior surface including the third surface region, resulting in a reflective appearance;
subsequent to step (b), (c) applying a first masking to at least the first and third surface regions of the exterior surface;
subsequent to step (c), (d) media blasting the second surface region of the exterior surface, resulting in a semi-gloss appearance;
subsequent to step (d), (e) removing the first masking;
subsequent to step (e), (f) applying a second masking to at least the second and third surface regions of the exterior surface;
subsequent to step (f), (g) roughening the first surface region of the exterior surface of the sports apparatus, resulting in a matte appearance; and
subsequent to step (g), (h) removing the second masking,
wherein the first, second, and third surface finishes are each different from each other.

12. The method of claim 11 , wherein the sports apparatus comprises a golf club head.

13. The method of claim 12 , wherein:
the golf club head comprises a striking face, a rear surface having an upper portion and a lower portion, a top surface, and a bottom surface;
the first surface region corresponds with the bottom surface;
the second surface portion corresponds with the upper portion of the rear surface; and
the third surface portion corresponds with the lower portion of the rear surface.

14. The method of claim 12 , wherein the golf club head is a wedge-type golf club head.

15. The method of claim 11 , wherein the step (g) of roughening the first surface region further comprises media blasting the first surface region using an aluminum oxide media.

16. The method of claim 11 , wherein the step (g) of roughening the first surface region further comprises abrading the first surface region using a brush wheel.

17. The method of claim 11 , wherein the step (c) of applying a first masking further comprises, using a flexible tape having a first side edge, a second side edge, and a substantially constant width measured between the first and second side edges, aligning at least one of the first and second side edges of the flexible tape with a boundary formed between the third surface region and the second surface region.

18. The method of claim 17 , wherein the boundary follows an arcuate path.

19. The method of claim 17 , wherein the third surface region comprises a concave surface portion.

20. The method of claim 11 , wherein the second region is circumscribed, in its entirety, by the third region.

Assignees

• Dunlop Sports Co Ltd
• Sumitomo Rubber Ind

Inventors

• Seagram Phillip C
• Becktor Mika
• Dolezel Keith

Classifications

• A63B53/047 Primary

  iron-type · CPC title

• A63B60/50

  with through-holes (A63B60/18 takes precedence; for stringing purposes A63B49/00) · CPC title

• A63B53/0475

  with one or more enclosed cavities · CPC title

• B24C1/08

  for polishing surfaces, e.g. {smoothing a surface} by making use of liquid-borne abrasives · CPC title

• C23C24/04

  Impact or kinetic deposition of particles · CPC title