MULTIPLE MATERIAL GOLF CLUB HEAD

• US 20090069115A1
• Filed: 11/17/2008
• Published: 03/12/2009
• Est. Priority Date: 03/18/2005
• Status: Active Grant

• Current Assignee: Callaway Golf Company (Topgolf Callaway Brands Corp.)
• Original Assignee: Callaway Golf Company (Topgolf Callaway Brands Corp.)
• Inventors: GIBBS, EVAN D., RICE, BRADLEY C., EVANS, D. CLAYTON, ERICKSON, MATTHEW J.
• Granted Patent: US 7,578,756 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 driver-type golf club head comprising:

a body composed of a metal material, the body comprising a face and sole section wherein the body has a length ranging from 3.5 inches to 4.5 inches and a width ranging from 4.0 inches to 5.5 inches; and

an epoxy-based composition positioned 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 driver-type golf club head has a volume ranging from 290 cubic centimeters to 600 cubic centimeters;

wherein the driver-type 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 driver-type golf club head according to claim 1 wherein the driver-type 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.

3. The driver-type golf club head according to claim 1 wherein the driver-type golf club head has a moment of inertia about the Izz axis through the center of gravity of the driver-type golf club head that ranges from 2800 to 5000 grams-centimeters squared, a moment of inertia about the Ixx axis through the center of gravity of the driver-type golf club head that ranges from 2000 to 3500 grams-centimeters squared and a moment of inertia about the Iyy axis through the center of gravity of the driver-type golf club head that ranges from 2000 to 3500 grams-centimeters squared.

4. The driver-type golf club head according to claim 1 wherein the body is composed of a titanium alloy material.

5. A driver-type golf club head comprising:

a body composed of a titanium alloy material, the body comprising a front wall and a sole section, the front wall having a striking plate insert, wherein the body has a length ranging from 3.5 inches to 4.5 inches and a width ranging from 4.0 inches to 5.5 inches; and

an epoxy-based composition positioned 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, the epoxy-base composition contacting a portion of an interior surface of the front wall, a portion of the interior surface of the striking plate insert and a portion of the interior surface of the sole section;

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

wherein the driver-type 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.