GOLF CLUB HEAD

• US 20100093464A1
• Filed: 12/11/2009
• Published: 04/15/2010
• Est. Priority Date: 11/04/2004
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: HALLACK, MICHAEL, GIBBS, EVAN D., GALLOWAY, J. ANDREW, CACKETT, MATTHEW T., HOCKNELL, ALAN, FOSTER, PHILIP G., WILLIAMS, LUKE R.
• Granted Patent: US 7,749,097 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 2209/023 Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
• 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 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0458 with non-uniform 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 face component (60), a mid-body (61) and an aft-weight component (65). 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.

Claims

1. A wood-type golf club head comprising:

a face component comprising a striking plate portion and a return portion extending rearward from the striking plate portion, the face component composed of a metal material and having a face area ranging from 5.00 square inches to 10.0 square inches;

a mid-body composed of a non-metal material; and

an aft-weight component attached to the mid-body;

wherein the golf club head has a volume ranging from 450 cubic centimeters to 475 cubic centimeters;

wherein the golf club head has a mass ranging from 180 grams to 225 grams;

wherein the golf club head has a length as measured from the forwardmost extent of the front wall to a rearward most extent of the rear wall ranging from 4.0 inches to 5.0 inches;

wherein the golf club head has a moment of inertia, Izz, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared;

wherein the golf club head has a CT value equal to or less than 257 milliseconds and a coefficient of restitution value ranging from 081 to 0.94.

2. The wood-type golf club head according to claim 1 wherein the golf club head has 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.

3. The wood-type golf club head according to claim 1 wherein the face component is composed of a formed titanium alloy.

4. The wood-type golf club head according to claim 1 wherein the cap of the aft-weight component is composed of an aluminum alloy and the weight member is composed of a polyester polyurethane material integrated with tungsten.

5. The wood-type golf club head according to claim 1 wherein the aft-weight component is weighted to provide the wood-type golf club head with a draw bias.

6. The wood-type golf club head according to claim 1 wherein the aft-weight component is weighted to provide the wood-type golf club head with a fade bias.

7. The wood-type golf club head according to claim 1 wherein the aft-weight component is weighted to provide the wood-type golf club head with a neutral bias.

8. The wood-type golf club head according to claim 1 wherein the mid-body is composed of plies of pre-preg material.

9. The wood-type golf club head according to claim 1 wherein the striking plate of the face component an interior surface with a first thickness and a second thickness wherein the first thickness is greater than the second thickness and the first thickness has an X like shape.