GOLF CLUB HEAD

• US 20080039234A1
• Filed: 10/08/2007
• Published: 02/14/2008
• Est. Priority Date: 01/03/2005
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: HOCKNELL, ALAN, HALLACK, MICHAEL, HETTINGER, RONALD, STEVENS, DANIEL, TANG, LARRY, GIBBS, EVAN, CACKETT, MATTHEW, WILLIAMS, LUKE
• Granted Patent: US 7,494,424 B2
• Time in Patent Office: Days
• US Class Current: 473/345
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• 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 2209/023 Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
• CPC Class Codes: A63B 53/02 Joint structures between the head and the shaft
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0412 Volume
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/042 the face insert consisting of a material different from that of the head
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0458 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 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence

Abstract

A golf club head (42) having a substantially square or rectangular body is disclosed herein. The golf club head (42) preferably has a volume ranging from 420 cubic centimeters to 470 cubic centimeters. The golf club head (42) preferably has a moment of inertia about the Izz axis through the center of gravity of the golf club head greater than 4000 grams-centimeters squared, and a moment of inertia about the Ixx axis through the center of gravity of the golf club head greater than 3000 grams-centimeters squared.

Claims

1. A wood-type golf club head comprising:

a body composed of a titanium alloy material, the body comprising a crown, a sole and a front wall having a perimeter, a heel wall extending 2.0 inches to 5.0 inches rearward from the perimeter of the front wall, an aft wall substantially perpendicular to the heel wall, the aft wall extending from 2.5 inches to 5.5 inches from an aft edge of the heel wall, and a toe wall substantially perpendicular to the aft wall, the toe wall extending from 2.0 inches to 5.0 inches from an aft edge of the toe wall, wherein the crown, the sole, the front wall, the heel wall, the aft wall and the toe wall define a hollow interior;

wherein the golf club head has a volume ranging from 420 cubic centimeters to 470 cubic centimeters, a moment of inertia, Izz, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared, and a moment of inertia, Iyy, about the center of gravity of the golf club head ranging from 2000 grams-centimeters squared to 4000 grams-centimeters squared;

wherein the heel wall extends rearward from a perimeter of the front wall a distance of least 50% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to relative to a plane parallel to the farthest extent of the face.

2. The wood-type golf club head according to claim 1 wherein the heel wall, the aft wall and the toe wall each have the same height.

3. The wood-type golf club head according to claim 2 wherein the heel wall, the aft wall and the toe wall each have a height ranging from 1.5 inches to 3.0 inches.

4. The wood-type golf club head according to claim 1 wherein the body has a geometric center point, an aft-heel edge point and an aft-toe edge point, wherein the distance from the geometric center point to the aft-heel edge point is equal to the distance from the geometric center point to the aft-toe edge point.

5. The wood-type golf club head according to claim 4 further comprising an aft-heel curvature section between the aft wall and the heel wall, and an aft-toe curvature section between the aft wall and the toe wall.

6. The wood-type golf club head according to claim 1 wherein the heel wall extends rearward from a perimeter of the front wall a distance of least 75% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to a plane parallel to the farthest extent of the face.

7. The wood-type golf club head according to claim 1 wherein the heel wall extends rearward from a perimeter of the front wall a distance of least 90% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to a plane parallel to the farthest extent of the face.

8. A wood-type golf club head comprising:

a body composed of a steel material, the body comprising a crown, a sole and a front wall having a perimeter, a heel wall extending 2.0 inches to 5.0 inches rearward from the perimeter of the front wall, an aft wall substantially perpendicular to the heel wall, the aft wall extending from 2.5 inches to 5.5 inches from an aft edge of the heel wall, and a toe wall substantially perpendicular to the aft wall, the toe wall extending from 2.0 inches to 5.0 inches from an aft edge of the toe wall, wherein the crown, the sole, the front wall, the heel wall, the aft wall and the toe wall define a hollow interior;

wherein the golf club head has a volume ranging from 420 cubic centimeters to 470 cubic centimeters, a moment of inertia, Izz, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared, and a moment of inertia, Iyy, about the center of gravity of the golf club head ranging from 2000 grams-centimeters squared to 4000 grams-centimeters squared;

wherein the heel wall extends rearward from a perimeter of the front wall a distance of least 50% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to relative to a plane parallel to the farthest extent of the face.

9. The wood-type golf club head according to claim 8 wherein the heel wall, the aft wall and the toe wall each have the same height.

10. The wood-type golf club head according to claim 9 wherein the heel wall, the aft wall and the toe wall each have a height ranging from 1.5 inches to 3.0 inches.

11. The wood-type golf club head according to claim 8 wherein the body has a geometric center point, an aft-heel edge point and an aft-toe edge point, wherein the distance from the geometric center point to the aft-heel edge point is equal to the distance from the geometric center point to the aft-toe edge point.

12. The wood-type golf club head according to claim 11 further comprising an aft-heel curvature section between the aft wall and the heel wall, and an aft-toe curvature section between the aft wall and the toe wall.

13. The wood-type golf club head according to claim 8 wherein the heel wall extends rearward from a perimeter of the front wall a distance of least 75% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to a plane parallel to the farthest extent of the face.

14. The wood-type golf club head according to claim 8 wherein the heel wall extends rearward from a perimeter of the front wall a distance of least 90% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to a plane parallel to the farthest extent of the face.

15. A wood-type golf club head comprising:

a body composed of a non-metal material, the body comprising a crown, a sole and a front wall having an opening and a perimeter, a heel wall extending 2.0 inches to 5.0 inches rearward from the perimeter of the front wall, an aft wall substantially perpendicular to the heel wall, the aft wall extending from 2.5 inches to 5.5 inches from an aft edge of the heel wall, and a toe wall substantially perpendicular to the aft wall, the toe wall extending from 2.0 inches to 5.0 inches from an aft edge of the toe wall, wherein the crown, the sole, the front wall, the heel wall, the aft wall and the toe wall define a hollow interior;

a striking plate positioned in the opening of the front wall of the body, the striking plate composed of a metal material;

wherein the golf club head has a volume ranging from 420 cubic centimeters to 470 cubic centimeters, a moment of inertia, Izz, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared, and a moment of inertia, Iyy, about the center of gravity of the golf club head ranging from 2000 grams-centimeters squared to 4000 grams-centimeters squared;

wherein the heel wall extends rearward from a perimeter of the front wall a distance of least 50% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to relative to a plane parallel to the farthest extent of the face.

16. The wood-type golf club head according to claim 15 wherein the heel wall, the aft wall and the toe wall each have the same height.

17. The wood-type golf club head according to claim 16 wherein the heel wall, the aft wall and the toe wall each have a height ranging from 1.5 inches to 3.0 inches.

18. The wood-type golf club head according to claim 15 wherein the body has a geometric center point, an aft-heel edge point and an aft-toe edge point, wherein the distance from the geometric center point to the aft-heel edge point is equal to the distance from the geometric center point to the aft-toe edge point.

19. The wood-type golf club head according to claim 18 further comprising an aft-heel curvature section between the aft wall and the heel wall, and an aft-toe curvature section between the aft wall and the toe wall.

20. The wood-type golf club head according to claim 15 wherein the heel wall extends rearward from a perimeter of the front wall a distance of least 75% of the length of the heel wall at an angle of 80 degrees to 90 degrees relative to a plane parallel to the farthest extent of the face.