Golf club head with high moment of inertia

• US 7,431,667 B2
• Filed: 02/04/2008
• Issued: 10/07/2008
• Est. Priority Date: 03/09/2007
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: Hocknell, Alan, Vincent, Brandon T., Dawson, Patrick
• Primary Examiner(s): Kim; Gene
• Assistant Examiner(s): Hunter; Alvin A
• Application Number:
  US12/025,503
• Publication Number:
  US 20080220897A1
• Time in Patent Office: 246 Days
• Field of Search: None
• 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 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0437 with special crown configurations
• 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 having a high moment of inertia is disclosed herein. The golf club head preferably has a volume ranging from 450 cubic centimeters to 475 cubic centimeters, a mass ranging from 180 grams to 225 grams, and a length ranging from 4.0 inches to 5.0 inches. The golf club head preferably has a moment of inertia, Iyy, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared. Preferably, the golf club includes a metal face component, a non-metal aft-body and a weight member attached to an inlaid portion of the non-metal aft-body.

Claims

1. A 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 mass ranging from 100 grams to 150 grams;

an aft-body attached to the return portion of the face component, the aft-body composed of a non-metal material, the aft-body having a mass ranging from 20 grams to 60 grams, the aft-body having a rearward inlaid portion; and

a weight member attached to the rearward inlaid portion of the aft-body, the weight member composed of material having a density greater than the density of the metal material of the face component, the weight member having a mass ranging from 20 grams to 60 grams;

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, Iyy, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared.