Multi-material golf club head

Patent metadata

Field	Value
Publication number	US-10232230-B2
Application number	US-201615047975-A
Country	US
Kind code	B2
Filing date	Feb 19, 2016
Priority date	Nov 18, 2015
Publication date	Mar 19, 2019
Grant date	Mar 19, 2019

Abstract

A golf club head made out of multi-material is disclosed herein. More specifically, the golf club head in accordance with the present invention has at least a portion of the body of the golf club head that is further comprised out of a base layer and a lightweight cover layer. The base layer may have a plurality of cutouts to help reduce unnecessary mass and the lightweight cover layer may be made out of an ultra-lightweight material to further reduce the unnecessary mass. The resulting golf club head may generally have a deep CG wherein the CG-B location is about 37 mm, and a CG-C location is greater than about 30 mm.

First claim

What is claimed is:

1. A golf club head comprising:
a striking face portion located at a frontal portion of said golf club head; and
a body portion attached to an aft portion of said striking face portion further comprising a bridge member creating a heel body portion and a toe body portion;
wherein said golf club head has a Center of Gravity location having a CG-C location greater than about 30 mm, and
wherein said heel body portion and said toe body portion further comprises a base layer and a lightweight cover layer, wherein said base layer further comprises a plurality of cutouts, and said lightweight cover layer has an Internal Exposure Percentage of between about 15% to about 60%.

2. The golf club head of claim 1 , wherein said CG-C location is greater than about 35 mm.

3. The golf club head of claim 1 , wherein said CG-C location is greater than about 40 mm.

4. The golf club head of claim 1 , wherein said lightweight cover layer has an Internal Exposure Percentage of between about 20% to about 50%.

5. The golf club head of claim 4 , wherein said lightweight cover layer has an Internal Exposure Percentage of between about 25% to about 45%.

6. The golf club head of claim 1 , wherein said heel body portion and said toe body portion only consists a lightweight cover layer, wherein said lightweight cover layer has a density of between 4.0 g/cm 3 and about 4.7 g/cm 3 .

7. The golf club head of claim 6 , wherein said lightweight cover layer has a density of between about 4.1 g/cm 3 and about 4.6 g/cm 3 .

8. The golf club head of claim 7 , wherein said lightweight cover layer has a density of less than about 4.5 g/cm 3 .

9. The golf club head of claim 8 , wherein said lightweight cover layer has a maximum thickness of less than about 0.50 mm.

10. The golf club head of claim 9 , wherein said lightweight cover layer has a maximum thickness of less than about 0.40 mm.

11. The golf club head of claim 10 , wherein said lightweight cover layer has a maximum thickness of less than about 0.35 mm.

Assignees

• Acushnet Co

Inventors

• Takehara Doug M
• Ferguson Gentry
• Myrhum Mark C

Classifications

• A63B60/50

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

• A63B2209/00

  Characteristics of used materials · CPC title

• A63B60/52

  with slits · CPC title

• A63B2053/0408

  Human Necessities · mapped topic

• A63B2209/02

  with reinforcing fibres, e.g. carbon, polyamide fibres · CPC title