GOLF CLUB FACE WITH COVER HAVING ROUGHNESS PATTERN

• US 20140128176A1
• Filed: 01/14/2014
• Published: 05/08/2014
• Est. Priority Date: 12/19/2007
• Status: Active Grant

• Current Assignee: Taylor Made Golf Co., Inc.
• Original Assignee: Taylor Made Golf Co., Inc.
• Inventors: Chao, Bing-Ling
• Granted Patent: US 9,682,291 B2
• Time in Patent Office: Days
• US Class Current: 473/329
• CPC Class Codes: A63B 2209/02 with reinforcing fibres, e.g. carbon, polyamide fibres
• CPC Class Codes: A63B 2209/023 Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
• CPC Class Codes: A63B 2209/10 with adhesive type surfaces, i.e. hook and loop-type fastener
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0425 the face insert comprising two or more different materials
• CPC Class Codes: A63B 53/0445 Details of grooves or the like on the impact surface
• CPC Class Codes: A63B 53/0458 with non-uniform thickness of the impact face plate
• CPC Class Codes: A63B 53/0462 characterised by tapering thickness of the impact face plate
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

The present disclosure pertains to composite articles, and in particular a composite face plate for a golf club-head, and methods for making the same. In certain embodiments, a composite face plate for a club-head is formed with a cross-sectional profile having a varying thickness. The face plate comprises a lay-up of multiple, composite prepreg plies. At least a portion of the plies comprise a plurality of elongated prepreg strips arranged in a predetermined criss-cross pattern in the lay-up. The prepreg strips create one or more areas of increased thickness where the strips overlap each other, thereby creating a desired profile for the plate. Metallic or polymer covers or cover layers can be used to define a striking surface.

Claims

1. A golf club head, comprising:

a hollow body including a crown, a sole, and a skirt;

a face plate positioned at a front end of the hollow body and having a front surface; and

a cover layer situated on the front surface of the face plate and including a peripheral rim, wherein the cover layer includes a polymer layer having a striking surface, the striking surface having a textured striking surface including a pattern of surface texture peaks formed thereon, the striking surface configured to provide a ball spin of about 2500 RPM under wet conditions.

2. The golf club head of claim 1, wherein the cover layer has a thickness between about 0.1 mm and about 2.0 mm.

3. The golf club head of claim 1, wherein the polymer layer is of a thickness of between about 0.3 mm and 0.6 mm, and the surface roughness of the striking surface is substantially periodic along at least one of a top-to-bottom direction and a toe-to-heel direction of the striking surface, the surface texture peaks having a periodic separation of about 0.5 mm and a height of about 20 μ

m to about 30 μ

m.

4. The golf club head of claim 1, wherein the cover layer has an effective Shore D hardness of about 75 to about 90.

5. The golf club head of claim 1, wherein the polymer is at least one of urethane and ionomer.

6. The golf club head of claim 1, wherein the face plate includes a plurality of scorelines.

7. The golf club head of claim 1, wherein at least a plurality of the face plate is formed of a composite, wherein the composite includes a lay-up, the lay-up including overlapping regions, the overlapping regions aligned such that at least a portion of the composite fibers are angularly spaced such that the lay-up includes a maximum thickness of about 5 mm proximate to a central region and a minimum thickness of about 3 mm proximate to a peripheral region.

8. The golf club head of claim 1, wherein the lay-up includes resin, the resin crosslinked throughout the lay-up.

9. The golf club head of claim 1, wherein the face plate includes a metal cap, the metal cap being made of a titanium alloy.

10. The golf club head of claim 1, wherein a surface profile kurtosis of the surface texture peaks is greater than about 1.5.

11. The golf club head of claim 10, wherein the cover layer has a thickness between about 0.1 mm and about 2.0 mm.

12. The golf club head of claim 11, wherein the polymer layer is of a thickness of between about 0.3 mm and 0.6 mm, and the surface roughness of the striking surface is substantially periodic along at least one of a top-to-bottom direction and a toe-to-heel direction of the striking surface, the surface texture peaks having a periodic separation of about 0.5 mm and a height of about 20 μ

m to about 30 μ

m.

13. The golf club head of claim 12, wherein the cover layer has an effective Shore D hardness of about 75 to about 90.

14. The golf club head of claim 13, wherein the polymer is at least one of urethane and ionomer.

15. The golf club head of claim 14, wherein the face plate includes a plurality of scorelines.

16. The golf club head of claim 15, wherein at least a plurality of the face plate is formed of a composite, wherein the composite includes a lay-up, the lay-up including overlapping regions, the overlapping regions aligned such that at least a portion of the composite fibers are angularly spaced such that the lay-up includes a maximum thickness of about 5 mm proximate to a central region and a minimum thickness of about 3 mm proximate to a peripheral region.

17. The golf club head of claim 16, wherein the lay-up includes resin, the resin cross-linked throughout the lay-up.