MULTIPLE MATERIAL GOLF CLUB HEAD

• US 20080051219A1
• Filed: 10/30/2007
• Published: 02/28/2008
• Est. Priority Date: 03/18/2005
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: ERICKSON, MATTHEW, EVANS, D., GIBBS, EVAN, RICE, BRADLEY
• Granted Patent: US 7,452,287 B2
• Time in Patent Office: Days
• US Class Current: 473/349
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• 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 53/042 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 53/0441 with visual indicators for aligning the golf club
• CPC Class Codes: A63B 53/045 Strengthening ribs
• 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

Abstract

A wood-type golf club head (40) having a major body (50), a striking plate insert (55) and a minor body (60) is disclosed herein. The major body (50) is composed of a metal material and has a front wall section (72), a return section (74), a sole section (76), a ribbon section (78) and a ledge portion (80). The minor body (50) is preferably composed of a low density material and has a crown section (62) and a ribbon section (64). The striking plate insert (55) is composed of a metal material. An epoxy-based composition (200) is placed at a face-sole junction (205) to lower the amplitude of the sound of the golf club head (40) during impact with a golf ball.

Claims

1. A golf club head comprising:

a body composed of a titanium alloy material;

wherein the moment of inertia about the Izz axis through the center of gravity of the golf club head that ranges from 2800 to 5000 grams-centimeters squared, the moment of inertia about the Ixx axis through the center of gravity of the golf club head that ranges from 2000 to 3500 grams-centimeters squared and the moment of inertia about the Iyy axis through the center of gravity of the golf club head that ranges from 2000 to 3500 grams-centimeters squared;

wherein the golf club head has a length ranging from 3.5 inches to 4.5 inches and a width ranging from 4.0 inches to 5.5 inches;

wherein the golf club head has a volume ranging from 350 cubic centimeters to 495 cubic centimeters;

wherein the golf club head has an amplitude level of less than 118 decibels when impacting a golf ball at a swing speed ranging from 80 MPH to 130 MPH.

2. The golf club head according to claim 1 wherein the golf club head has an amplitude level of approximately 110 decibels when impacting a golf ball at a swing speed ranging from 80 MPH to 130 MPH.

4. A driver-type golf club head comprising:

a body composed of a metal material, the body comprising a face and sole section; and

epoxy-based composition position at a face-sole junction of the body, the epoxy based composition having a mass ranging from 3.0 grams to 10.0 grams and extending from 2.0 inches to 3.5 inches along a heel to toe direction of the face-sole junction;

wherein the golf club head has a volume ranging from 290 cubic centimeters to 600 cubic centimeters;

wherein the golf club head has an amplitude level of less than 118 decibels when impacting a golf ball at a swing speed ranging from 80 MPH to 130 MPH.

5. The golf club head according to claim 4 wherein the golf club head has an amplitude level of approximately 110 decibels when impacting a golf ball at a swing speed ranging from 80 MPH to 130 MPH.