Golf Club Head And Method Of Manufacture

• US 20100285901A1
• Filed: 05/08/2009
• Published: 11/11/2010
• Est. Priority Date: 05/08/2009
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Karsten Manufacturing Corporation
• Inventors: Schweigert, Bradley D.
• Granted Patent: US 8,808,108 B2
• Time in Patent Office: Days
• US Class Current: 473/345
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0412 Volume
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 53/0475 with one or more enclosed cavities
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence
• 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
• CPC Class Codes: Y10T 29/49002 Electrical device making
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

Embodiments of golf clubs and methods of manufacture are described herein. Other embodiments and related methods are also disclosed herein.

Claims

1. An apparatus comprising:

a golf club head body comprising;

a heel;

a toe opposite the heel;

a strike face comprising a leading edge;

a rear opposite the strike face; and

a hosel comprising a hosel axis and located at the heel and approximately at or in front of the leading edge;

wherein the golf club head body comprises at least one of;

a first ratio of a moment of inertia of the golf club head body versus a mass of the golf club head body greater than approximately 12 cm2;

a second ratio of the moment of inertia versus a volume of the golf club head body greater than approximately 25 g/cm;

or

a third ratio of a first distance versus a second distance greater than approximately 0.7, wherein the first distance is measured between a first plane intersecting the hosel axis and a center of gravity of the golf club head body, wherein the second distance is measured between a second plane intersecting the leading edge of the strike face and the center of gravity, and wherein the first and second planes are perpendicular to a third plane representing a ground surface when the golf club head body is at an address position.

2. The apparatus of claim 1, wherein the golf club head body comprises at least the first ratio.

3. The apparatus of claim 1, wherein the first ratio is greater than or equal to approximately 13 cm2.

4. The apparatus of claim 1, wherein the first ratio is approximately 13 cm2 to approximately 15 cm2.

5. The apparatus of claim 1, wherein the golf club head body comprises at least the second ratio.

6. The apparatus of claim 1, wherein the second ratio is greater than or equal to approximately 27 g/cm.

7. The apparatus of claim 1, wherein the second ratio is approximately 29 g/cm to approximately 33 g/cm.

8. The apparatus of claim 1, wherein the golf club head body comprises at least the third ratio.

9. The apparatus of claim 1, wherein the third ratio is greater than or equal to approximately 0.8.

10. The apparatus of claim 1, wherein the third ratio is approximately 0.8 to approximately 1.0.

11. The apparatus of claim 1, wherein the golf club head body comprises a hybrid golf club head body.

12. The apparatus of claim 1, wherein the golf club head body is hollow.

13. The apparatus of claim 1, further comprising a weight inside the golf club head body.

14. The apparatus of claim 1, further comprising a shaft coupled to the hosel.

15. An apparatus comprising:

a hollow golf club head body comprising;

a heel;

a toe opposite the heel;

a strike face comprising a leading edge, having a loft angle, and located between the heel and the toe;

a rear between the heel and the toe and opposite the strike face;

a hosel comprising a hosel axis and located at the heel; and

a moment of inertia, a mass, a volume, and a center of gravity,

wherein;

the leading edge of the strike face is located approximately at the hosel axis or between the rear of the hollow golf club head body and the hosel axis; and

the hollow golf club head body is characterized by at least one of;

a first ratio of the moment of inertia versus the mass greater than or equal to approximately 13 cm2;

a second ratio of the moment of inertia versus the volume greater than or equal to approximately 27 g/cm;

or

a third ratio of a first distance versus a second distance greater than or equal to approximately 0.8, wherein the first distance is measured between the center of gravity and a first vertical plane that extends through the hosel axis and that is normal to a horizontal plane representing a ground surface when the hollow golf club head body is at an address position, and the second distance is measured between the center of gravity and a second vertical plane that extends through the leading edge of the strike face and that is normal to the horizontal plane representing the ground surface when the hollow golf club head body is at the address position.

16. The apparatus of claim 15, wherein the hollow golf club head body is characterized by at least the first ratio.

17. The apparatus of claim 16, wherein the first ratio is approximately 13 cm2 to approximately 15 cm2.

18. The apparatus of claim 15, wherein the hollow golf club head body is characterized by at least the second ratio.

19. The apparatus of claim 18, wherein the second ratio is approximately 29 g/cm to approximately 33 g/cm.

20. The apparatus of claim 15, wherein the hollow golf club head body is characterized by at least the third ratio.

21. The apparatus of claim 20, wherein the third ratio is approximately 0.8 to approximately 1.0.

22. The apparatus of claim 15, wherein the hollow golf club head body comprises a hollow, hybrid golf club head body.

23. The golf club of claim 15, further comprising a weight inside the hollow golf club head body.

24. The apparatus of claim 15, further comprising a golf club shaft coupled to the hosel.

25. The apparatus of claim 15, wherein a widest portion of the golf club head body is at least one of:

located at the toe;

located closer to the toe than the heel;

or

located between the toe and a midpoint between the toe and the heel.

26. A method comprising:

forming a golf club head body comprising;

a heel;

a toe opposite the heel;

a strike face comprising a leading edge;

a rear opposite the strike face; and

a hosel comprising a hosel axis and located at the heel;

wherein;

the leading edge of the strike face is located approximately at the hosel axis or between the rear of the golf club head body and the hosel axis; and

the golf club head body is characterized by at least one of;

a first ratio of a moment of inertia of the golf club head body versus a mass of the golf club head body greater than approximately 12 cm2;

a second ratio of the moment of inertia versus a volume of the golf club head body greater than approximately 25 g/cm;

or

a third ratio of a first distance versus a second distance greater than approximately 0.7, wherein the first distance is measured between a first plane intersecting the hosel axis and a center of gravity of the golf club head body, and the second distance is measured between a second plane intersecting the leading edge of the strike face and the center of gravity, and the first and second planes are perpendicular to a third plane representing a ground surface when the golf club head body is at an address position.

27. The method of claim 26, further comprising:

coupling a golf club shaft to the hosel.

28. The method of claim 26, wherein:

forming the golf club head body further comprises;

coupling the strike face to another portion of the golf club head body.