Golf club head or other ball striking device having custom machinable portions

• US 8,827,836 B2
• Filed: 03/29/2011
• Issued: 09/09/2014
• Est. Priority Date: 03/29/2011
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Nike, Inc.
• Inventors: Thomas, James S.
• Primary Examiner(s): HUNTER, ALVIN A
• Application Number:
  US13/074,885
• Publication Number:
  US 20120252601A1
• Time in Patent Office: 1,260 Days
• Field of Search: 473324-350
• US Class Current: 473/345
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2225/01 Special aerodynamic features, e.g. airfoil shapes, wings or air passages
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0412 Volume
• CPC Class Codes: A63B 53/0433 with special sole configurations
• 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 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/52 with slits
• CPC Class Codes: B23C 3/28 Grooving workpieces tread-cutting by milling B23G1/32
• CPC Class Codes: Y10T 29/49995 Shaping one-piece blank by removing material
• CPC Class Codes: Y10T 409/303752 Process

Abstract

A ball striking device, such as a golf club, includes a head with a face having a ball-striking surface configured for striking a ball, a body connected to the face, and at least one weight element connected to the body. The head has a total weight that is higher than a target weight of the head, and the at least one weight element is configured to be at least partially removed by a material removal technique to lower the total weight of the head to approximately equal the target weight. The at least one weight element may be integrally connected to the body, such as being integrally formed with at least a portion of the body. The material removal technique may constitute milling, machining, or other material removal techniques or combination of such techniques.

Claims

1. A wood-type golf club head comprising:

a wood-type face having ball-striking surface configured for striking a ball;

a wood-type body connected to the face and extending rearward from the face to define a cavity bounded by the face and the body;

at least one weight element integrally formed with the body, wherein the at least one weight element is located on an inner surface of the body, wherein the head has a total weight that is higher than a target weight of the head, and wherein the at least one weight element is configured to be at least partially removed by machining to lower the total weight of the head to approximately equal the target weight.

2. The wood-type golf club head of claim 1, wherein the at least one weight element comprises a first leg extending along a heel side of the body, a second leg extending along a toe side of the body, and a third leg extending along a rear side of the body.

3. The wood-type golf club head of claim 2, wherein the first, second, and third legs are connected together to form a generally U-shaped weight element.

4. The wood-type golf club head of claim 2, wherein the at least one weight element further comprises a fourth leg extending along a peripheral edge of the face.

5. The wood-type golf club head of claim 2, wherein the first, second, and third legs are located on a sole of the body.

6. The wood-type golf club head of claim 1, wherein a volume enclosed by the face and the body is at least 400 cubic centimeters.

7. The wood-type golf club head of claim 1, wherein at least a portion of the body is formed of a metallic material, and the at least one weight element is integrally formed with the at least a portion of the body formed of the metallic material.

8. A wood-type golf club comprising the golf club head of claim 1 and a shaft connected to the golf club head.

9. The wood-type golf club head of claim 1, wherein the at least one weight element is configured to be at least partially removed by machining on the inner surface of the body to at least partially remove the at least one weight element.

10. An iron-type golf club head comprising:

an iron-type face having a ball-striking surface configured for striking a ball;

an iron-type golf club body connected to the face and extending rearward from the face; and

at least one weight element integrally formed with the body, wherein the head has a total weight that is 10-30 grams higher than a target weight of the head, and wherein the at least one weight element is configured to be at least partially removed by machining to lower the total weight of the head to approximately equal the target weight.

11. The iron-type golf club head of claim 10, wherein the body comprises a peripheral wall extending rearward from the face, wherein the at least one weight element is connected to the peripheral wall.

12. The iron-type golf club head of claim 10, wherein the body comprises a plurality of peripheral walls extending rearward from the face, wherein the at least one weight element is connected to one of the peripheral walls.

13. The iron-type golf club head of claim 10, wherein the body comprises a peripheral wall extending rearward from the face and a rear cavity defined at least in part by an inner surface of the face and the peripheral wall, wherein the at least one weight element is positioned within the rear cavity.

14. The iron-type golf club head of claim 13, wherein the peripheral wall is a sole member forming at least a portion of a sole of the head, and the at least one weight element is positioned on a surface of the sole member located within the rear cavity.

15. The iron-type golf club head of claim 10, wherein at least a portion of the body is formed of a metallic material, and the at least one weight element is integrally formed with the at least a portion of the body formed of the metallic material.

16. An iron-type golf club comprising the golf club head of claim 10 and a shaft connected to the golf club head.

17. A golf club head comprising:

a face having a ball-striking surface configured for striking a ball;

a body connected to the face, wherein the body has an inner cavity defined by an inner surface of the face and an inner surface of the body; and

at least one weight element integrally connected to the body, wherein the at least one weight element is located on the inner surface of the nody within the inner cavity, wherein the head has a total weight that is higher than a target weight of the head, and wherein the at least one weight element is configured to be at least partially removed by a material removal technique to lower the total weight of the head to approximately equal the target weight.

18. The golf club head of claim 17, wherein the at least one weight element comprises a first leg extending along a heel side of the body, a second leg extending along a toe side of the body, and a third leg extending along a rear side of the body.

19. The golf club head of claim 18, wherein the first, second, and third legs are connected together to form a generally U-shaped weight element.

20. The golf club head of claim 18, wherein the at least one weight element further comprises a fourth leg extending along a peripheral edge of the face.

21. The golf club head of claim 18, wherein the first, second, and third legs are located on a sole of the body.

22. The golf club head of claim 17, wherein at least a portion of the body is formed of a metallic material, and the at least one weight element is integrally formed with the at least a portion of the body formed of the metallic material.

23. A golf club comprising the golf club head of claim 17 and a shaft connected to the golf club head.

24. A golf club head of claim 17, wherein the at least one weight element is configured to be at least partially removed by using the material removal technique on the inner surface of the body to at least partially remove the at least one weight element.

25. A method comprising:

providing a golf club head comprising;

a face having a ball-striking surface configured for striking a ball;

a body connected to the face, wherein the body has an inner cavity defined by an inner surface of the face and an inner surface of the body; and

at least one weight element connected to the body, wherein the at least one weight element is located on the inner surface of the body within the inner cavity, and wherein the head has an initial weight that is higher than a target weight of the head; and

accessing the inner cavity and machining the at least one weight element to remove a portion of the at least one weight element to lower the initial weight of the head to approximately equal the target weight.

26. The method of claim 25, wherein the at least one weight element comprises a first leg extending along a heel side of the body, a second leg extending along a toe side of the body, and a third leg extending along a rear side of the body, and wherein machining the at least one weight element comprises machining at least one of the first, second, and third legs.

27. The method of claim 26, wherein the at least one weight element further comprises a fourth leg extending along a peripheral edge of the face, wherein machining the at least one weight element comprises machining at least one of the first, second, third, and fourth legs.

28. The method of claim 25, wherein the head is a driver head having an initial weight of 230 g, and the target weight is 200 g.

29. The method of claim 25, wherein the head is a fairway wood head having an initial weight of about 250g, and the target weight is about 215 g.

30. The method of claim 25, wherein the head is formed of a face frame member comprising the face and a wall extending rearwardly from the face and a backbody member connected to the wall of the face frame member and extending rearwardly from the face frame member, the method further comprising connecting the backbody member to the face frame member after machining the at least one weight element.

31. The method of claim 25, wherein the face frame member is removably connected to the backbody member in the head as provided, the method further comprising removing the face frame member from the backbody member prior to machining the at least one weight element.

32. The method of claim 25, wherein at least a portion of the body is formed of a metallic material, and the at least one weight element is integrally formed with the at least a portion of the body formed of the metallic material.

33. A golf club head manufactured using the method of claim 25, with the portion of the at least one weight element removed, and with the total weight of the head being approximately equal to the target weight.

34. A golf club comprising the golf club head of claim 25 and a shaft connected to the golf club head.

35. The method of claim 25, wherein the at least one weight element is machined on the inner surface of the body to remove the portion of the at least one weight element from the inner surface of the body.

36. A wood-type golf club head comprising:

a wood-type face having ball-striking surface configured for striking a ball;

a wood-type body connected to the face and extending rearward from the face to define a cavity bounded by the face and the body;

at least one weight element integrally formed with the body, wherein the head has a total weight that is higher than a target weight of the head, and wherein the at least one weight element is configured to be at least partially removed by machining to lower the total weight of the head to approximately equal the target weight; and

wherein the at least one weight element comprises a first leg extending along a heel side of the body, a second leg extending along a toe side of the body, a third leg extending along a rear side of the body, and a fourth leg extending along a peripheral edge of the face.

37. A wood-type golf club head comprising:

a wood-type face having ball-striking surface configured for striking a ball;

a wood-type body connected to the face and extending rearward from the face to define a cavity bounded by the face and the body;

at least one weight element integrally formed with the body, wherein the head has a total weight that is higher than a target weight of the head, and wherein the at least one weight element is configured to be at least partially removed by machining to lower the total weight of the head to approximately equal the target weight; and

wherein the at least one weight element comprises a first leg extending along a heel side of the body, a second leg extending along a toe side of the body, and a third leg extending along a rear side of the body, and wherein the first, second, and third legs are located on a sole of the body.

38. A golf club head comprising:

a face having a ball-striking surface configured for striking a ball;

a body connected to the face; and

at least one weight element integrally connected to the body, wherein the head has a total weight that is higher than a target weight of the head, and wherein the at least one weight element is configured to be at least partially removed by a material removal technique to lower the total weight of the head to approximately equal the target weight; and

wherein the at least one weight element comprises a first leg extending along a heel side of the body, a second leg extending along a toe side of the body, and a third leg extending along a rear side of the body, and wherein the at least one weight element further comprises a fourth leg extending along a peripheral edge of the face.

39. A golf club head comprising:

a face having a ball-striking surface configured for striking a ball;

a body connected to the face; and

at least one weight element integrally connected to the body, wherein the head has a total weight that is higher than a target weight of the head, and wherein the at least one weight element is configured to be at least partially removed by a material removal technique to lower the total weight of the head to approximately equal the target weight; and

wherein the at least one weight element comprises a first leg extending along a heel side of the body, a second leg extending along a toe side of the body, and a third leg extending along a rear side of the body, and wherein the first, second, and third legs are located on a sole of the body.

40. A method comprising:

providing a golf club head comprising;

a face having a ball-striking surface configured for striking a ball;

a body connected to the face; and

at least one weight element connected to the body, wherein the head has an initial weight that is higher than a target weight of the head;

machining the at least one weight element to remove a portion of the at least one weight element to lower the initial weight of the head to approximately equal the target weight; and

wherein the head is a driver head having an initial weight of 230 g, and the target weight is 200 g.

41. A method comprising:

providing a golf club head comprising;

a face having a ball-striking surface configured for striking a ball;

a body connected to the face; and

at least one weight element connected to the body, wherein the head has an initial weight that is higher than a target weight of the head;

machining the at least one weight element to remove a portion of the at least one weight element to lower the initial weight of the head to approximately equal the target weight; and

wherein the head is a fairway wood head having an initial weight of about 250 g, and the target weight is about 215 g.

42. A method comprising:

providing a golf club head comprising;

a face having a ball-striking surface configured for striking a ball;

a body connected to the face; and

at least one weight element connected to the body, wherein the head has an initial weight that is higher than a target weight of the head;

machining the at least one weight element to remove a portion of the at least one weight element to lower the initial weight of the head to approximately equal the target weight; and

wherein the at least one weight element is located on an outer surface of the sole of the body.