Driver with deep AFT cavity

• US 7,753,809 B2
• Filed: 12/11/2008
• Issued: 07/13/2010
• Est. Priority Date: 12/19/2007
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: Cackett, Matthew T., Hocknell, Alan
• Primary Examiner(s): Passaniti; Sebastiano
• Application Number:
  US12/332,551
• Publication Number:
  US 20090163294A1
• Time in Patent Office: 579 Days
• Field of Search: 473324-350, 473287-292
• US Class Current: 473/345
• 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 53/0412 Volume
• 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 53/0458 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

Abstract

A golf club head with a deep aft cavity is disclosed herein. The body has a striking plate wall, a crown section, a sole section and a rear wall. An area of interest preferably has less than 12% of the mass of the golf club head. The golf club head preferably is a driver.

Claims

1. A golf club head comprising:

a body having a generally C shape with a front elongated section, a heel end arm extending rearward from the front elongated section, a toe arm extending rearward from the front elongated section, wherein the front elongated section, the heel arm and the toe arm form a deep aft-cavity having a length ranging from 1.0 inch to 3.75 inches from a rear wall of the front elongated section to an end of the heel arm, wherein the front elongated section is approximately 40% of the depth of the golf club head;

wherein the body has a length ranging from 4.75 inches to 5.5 inches, a width of the front wall ranging from 4.75 inches to 5.5 inches and a height of the front wall ranging from 2.5 inches to 3.0 inches.

2. The golf club head according to claim 1 wherein the body has a volume ranging from 450 cubic centimeters to 470 cubic centimeters.

3. The golf club head according to claim 1 wherein the body is composed of a material selected from the group consisting of titanium, titanium alloy, steel, magnesium, magnesium alloy, aluminum, aluminum alloy, pre-preg material, thermoplastic polyurethane, and polycarbonate.

4. The golf club head according to claim 1 wherein the golf club head has a mass ranging from 185 grams to 225 grams.

5. The golf club head according to claim 1 wherein the golf club head has mass ranging from 195 grams to 215 grams.

6. The golf club head according to claim 1 wherein the golf club head has mass ranging from 190 grams to 220 grams.

7. The golf club head according to claim 1 wherein the golf club head has a moment of inertia Izz about the center of gravity ranging from 4000 g-cm² to 5000 g-cm².

8. The golf club head according to claim 1 wherein the golf club head has a moment of inertia Iyy about the center of gravity ranging from 2000 g-cm² to 4000 g-cm².

9. The golf club head according to claim 1 wherein the golf club head has a moment of inertia Ixx about the center of gravity ranging from 2000 g-cm² to 4000 g-cm².

10. The golf club head according to claim 1 wherein the striking plate wall has variable face thickness.

11. A golf club head comprising:

a body having a deep aft-cavity, the body having a front elongated section, a heel end arm extending rearward from the front elongated section, a toe arm extending rearward from the front elongated section, wherein the front elongated section, the heel arm and the toe arm form said deep aft-cavity having a length ranging from 1.0 inch to 3.75 inches from a rear wall of the front elongated section to an end of the heel arm, wherein the front elongated section is approximately 40% of the depth of the golf club head;

wherein the golf club head has a mass ranging from 185 grams to 215 grams and a volume ranging from 450 cubic centimeters to 470 cubic centimeters;

wherein the body has a length ranging from 4.75 inches to 5.5 inches, a width of the front wall ranging from 4.75 inches to 5.5 inches and a height of the front wall ranging from 2.5 inches to 3.0 inches;

wherein an area of interest has less than 15% of the mass of the golf club head.

12. A golf club head comprising:

a body having a deep aft-cavity, the body having a front elongated section, a heel end arm extending rearward from the front elongated section, a toe arm extending rearward from the front elongated section, wherein the front elongated section, the heel arm and the toe arm form said deep aft-cavity having a length ranging from 1.0 inch to 3.75 inches from a rear wall of the front elongated section to an end of the heel arm, wherein the front elongated section is approximately 40% of the depth of the golf club head;

wherein the golf club head has a mass ranging from 185 grams to 215 grams and a volume ranging from 450 cubic centimeters to 470 cubic centimeters;

wherein the body has a length ranging from 4.75 inches to 5.5 inches, a width of the front wall ranging from 4.75 inches to 5.5 inches and a height of the front wall ranging from 2.5 inches to 3.0 inches;

wherein an area of interest has less than 12% of the mass of the golf club head.