Golf club head with high moment of inertia

• US 7,413,520 B1
• Filed: 02/05/2008
• Issued: 08/19/2008
• 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:
  US12/026,024
• Publication Number:
  US 20080220898A1
• Time in Patent Office: 196 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;

wherein the golf club head is partitioned by a plurality of vertical planes into a first section, a second section and a third section, the first section extending from the front wall to a first vertical plane located 1.0 inch rearward of the front wall of the golf club head, the third section extending from a second vertical plane located 4.5 inches rearward of the front wall of the golf club head to the rear wall, and the second section positioned between the first section and the third section, wherein the first section has a height from sole to crown of at least 2.5 inches, wherein the third section has a height from sole to crown of less than 1.0 inch, and wherein the second section has a height from sole to crown that is less than the height of the first section and greater than the height of the third section.