Golf club head

Patent metadata

Field	Value
Publication number	US-11063996-B2
Application number	US-202016906346-A
Country	US
Kind code	B2
Filing date	Jun 19, 2020
Priority date	Dec 22, 2006
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.

First claim

The invention claimed is:

1. A wood-type golf club head that, when oriented in a reference position, comprises:
a striking face having:
a center apex;
a face height between about 43 mm and about 61 mm; and
a face length between about 94 mm and about 115 mm;

a hosel defining a hosel centerline that lies in a hosel vertical plane and having, at an upper end, a hosel center;
a crown extending rearwardly from the striking face;
a sole opposite the crown;
a break length between about 96.5 mm and about 140 mm at a height between about 1 mm and about 15 mm;
a moment of inertia about a vertical axis extending through the CG of no less than about 3700 g*cm 2 ; and
a moment of inertia about a horizontal axis extending parallel to the hosel vertical plane and through the CG of no less than 2700 g*cm 2 ,
wherein the golf club head comprises a composite material.

2. The golf club head of claim 1 , further comprising:
a second vertical plane that is perpendicular to the hosel vertical plane and passes through the hosel center;
a center of gravity CG spaced at a first horizontal distance no less than 15 mm from the hosel vertical plane and a second horizontal distance no less than 55 mm from the second vertical plane.

3. The golf club head of claim 1 , wherein the break length is between about 100 mm and about 130 mm at the height between about 1 mm and 15 mm.

4. The golf club head of claim 1 , further comprising a golf club head volume between about 300 cm 3 and about 500 cm 3 .

5. The golf club head of claim 1 , wherein a portion of the crown is recessed towards the sole.

6. The golf club head of claim 1 , further comprising:
a sweet spot defined as the orthogonal projection of the golf club head's center of gravity onto the striking face; and
a COR hot spot defined as the point of the striking face where maximum energy transfer occurs at ball impact,
wherein sweet spot and COR hot spot are substantially aligned.

7. The golf club head claim 1 , wherein the golf club head is formed at least in part from a resin.

8. The golf club head of claim 7 , wherein the resin is reinforced thermoset resin.

9. The golf club head of claim 1 , further comprising a center of gravity located at a height of between about 20 mm and 33 mm.

10. The golf club head of claim 9 , wherein the height is between about 22 mm and 33 mm.

11. A wood-type golf club head that, when oriented in a reference position, comprises:
a striking face having:
a center apex;
a face height between about 43 mm and about 61 mm; and
a face length between about 94 mm and about 115 mm;

a hosel defining a hosel centerline that lies in a hosel vertical plane and having, at an upper end, a hosel center;
a crown extending rearwardly from the striking face;
a sole opposite the crown;
a break length between about 96.5 mm and about 140 mm at a height between about 1 mm and about 15 mm;
a moment of inertia about a vertical axis extending through the CG of no less than about 3700 g*cm 2 ; and
a moment of inertia about a horizontal axis extending parallel to the hosel vertical plane and through the CG of no less than 2700 g*cm 2 ,
wherein the golf club head comprises a resin.

12. The golf club head of claim 11 , further comprising:
a second vertical plane that is perpendicular to the hosel vertical plane and passes through the hosel center;
a center of gravity CG spaced at a first horizontal distance no less than 15 mm from the hosel vertical plane and a second horizontal distance no less than 55 mm from the second vertical plane.

13. The golf club head of claim 11 , wherein the break length is between about 100 mm and about 130 mm at the height between about 1 mm and 15 mm.

14. The golf club head of claim 11 , further comprising a golf club head volume between about 300 cm 3 and about 500 cm 3 .

15. The golf club head of claim 11 , wherein a portion of the crown is recessed towards the sole.

16. The golf club head of claim 11 , further comprising:
a sweet spot defined as the orthogonal projection of the golf club head's center of gravity onto the striking face; and
a COR hot spot defined as the point of the striking face where maximum energy transfer occurs at ball impact,
wherein sweet spot and COR hot spot are substantially aligned.

17. The golf club head claim 11 , wherein the golf club head comprises a composite material.

18. The golf club head of claim 11 , further comprising a center of gravity located at a height of between about 20 mm and 33 mm.

19. The golf club head of claim 18 , wherein the height is between about 22 mm and 33 mm.

20. The golf club head of claim 11 , wherein the resin is a reinforced thermoset resin.

Assignees

• Sumitomo Rubber Ind

Inventors

• Rae John J
• Radcliffe Nathaniel J
• Stone Daniel J
• Garner Trent E
• Hooley Brad S
• Horacek Robert J
• Lacey Sam G
• Brunski Jeff D
• Schaeffer Kevin
• Carlyle Scott A
• Chien Stephen C
• Schnell Craig R
• Roberts Douglas E
• Nivanh Dan S
• Wallans Michael J

Classifications

• A63B53/0412

  Volume · CPC title

• A63B53/0408

  characterised by specific dimensions, e.g. thickness · CPC title

• A63B60/02

  Ballast means for adjusting the centre of mass (A63B60/24, A63B60/54 take precedence) · CPC title

• A63B53/0466

  wood-type · CPC title

• A63B53/04 Primary

  Heads · CPC title