Multi-material golf club head

• US 10,232,230 B2
• Filed: 02/19/2016
• Issued: 03/19/2019
• Est. Priority Date: 11/18/2015
• Status: Active Grant

• Current Assignee: Acushnet Company (FILA Holdings Corp.)
• Original Assignee: Acushnet Company (FILA Holdings Corp.)
• Inventors: Takehara, Doug M., Ferguson, Gentry, Myrhum, Mark C.
• Primary Examiner(s): Legesse, Nini
• Application Number:
  US15/047,975
• Publication Number:
  US 20170136316A1
• Time in Patent Office: 1,124 Days
• Field of Search: 473345, 473346, 473349
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 2209/02 with reinforcing fibres, e.g. carbon, polyamide fibres
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/002 Resonance frequency related characteristics
• CPC Class Codes: A63B 60/50 with through-holes A63B60/18 takes precedence; for stringing purposes A63B49/00
• CPC Class Codes: A63B 60/52 with slits

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.

Claims

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/cm³ and about 4.7 g/cm³.

7. The golf club head of claim 6, wherein said lightweight cover layer has a density of between about 4.1 g/cm³ and about 4.6 g/cm³.

8. The golf club head of claim 7, wherein said lightweight cover layer has a density of less than about 4.5 g/cm³.

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.