Golf club head with vibration damping channels

• US 6,093,116 A
• Filed: 12/22/1998
• Issued: 07/25/2000
• Est. Priority Date: 12/22/1998
• Status: Expired due to Term

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: Ruiz, Ruben, Hettinger, Ronald K., Hall, J. Neil
• Primary Examiner(s): Nguyen, Kien T.
• Application Number:
  US09/218,733
• Time in Patent Office: 581 Days
• Field of Search: 473/324, 473/332, 473/330, 473/342, 473/346, 473/329
• US Class Current: 473/332
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0445 Details of grooves or the like on the impact surface
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/54 with means for damping vibrations

Abstract

A golf club head having a face insert plate. The face insert plate is affixed to a faceplate mounting surface wherein a plurality of channels are formed. The channels preferably have a depth that is increased in a lower region of a face of the club head. An elastomeric binding material and damping agent is provided within the channels to affix the face insert plate to the face plate mounting surface and to provide a vibration damping function. In a preferred form, the faceplate mounting surface comprises a base wall of a face insert receiving cavity or recess that is formed within a main body of the club head.

Claims

1. A golf club head comprising:

a club head body and face insert plate,

said club head body having a face plate mounting surface to which said face insert plate is bonded, said face plate mounting surface having a plurality of varying depth channels formed therein, and an elastomeric binding material being provided within said channels for bonding said face insert plate to said face plate mounting surface and for performing a vibration damping function.

2. The golf club head of claim 1, wherein said face plate mounting surface includes a lower region and an upper region, and wherein sections of said channels in said lower region are deeper than sections of said channels in said upper region.

3. The golf club head of claim 2, wherein the depth of each said channel in said lower region decreases linearly as each said channel approaches said upper region.

4. The golf club head of claim 2, wherein the depth of each said channel in said upper region increases linearly as each said channel approaches said lower region.

5. The golf club head of claim 2, wherein said face plate mounting surface comprises a base wall of a face insert cavity formed within a face region of said club head body.

6. The golf club head of claim 5, wherein said channels include a first set of channels that intersect a second set of channels at a predetermined angle.

7. The golf club head of claim 6, wherein said first and second sets of channels have an orthogonal relationship, and wherein said sets of channels intersect a vertical plane orthogonal to said face at substantially a 45°

angle when said golf club head is properly positioned to address a golf ball.

8. The golf club head of claim 5, wherein said face insert cavity has a side wall extending around an entire perimeter of said cavity.

9. The golf club head of claim 8, wherein said side wall has a lower section whereon a plurality of face insert plate positioning nubs are formed.

10. The golf club head of claim 2, wherein said channels include a first set of channels that intersects a second set of channels at a predetermined angle.

11. The golf club head of claim 10, wherein said first and second sets of channels have an orthogonal relationship, and wherein said sets of channels intersect a vertical plane orthogonal to said face at substantially a 45°

angle when said golf club head is properly positioned to address a golf ball.

12. The golf club head of claim 11, wherein the depth of each said channel in said lower region decreases linearly as each said channel approaches said upper region, and wherein the depth of each said channel in said upper region increases linearly as each said channel approaches said lower region.

13. The golf club head of claim 2, wherein each said channel in said lower region has a maximum depth of substantially 0.048 inches, and each said channel in said upper region has a maximum depth of substantially 0.019 inches.

14. The golf club head of claim 13, wherein said channels in said lower and upper regions have an internal radius of curvature of substantially 0.060 inches, and have a trough-to-trough separation of substantially 0.400 inches.

15. The golf club head of claim 1, wherein said face plate mounting surface comprises a base wall of a face insert cavity formed within a face region of said club head body.

16. The golf club head of claim 1, wherein said plurality of channels includes a first set of channels that intersect a second set of channels at a predetermined angle.

17. The golf club head of claim 16, wherein said first and second sets of channels have an orthogonal relationship, and wherein said sets of channels intersect a vertical plane orthogonal to said face at substantially a 45°

angle when said golf club head is properly positioned to address a golf ball.

18. A golf club head comprising:

a club head body and a face insert plate,

said club head body including a face plate mounting surface having a lower region and an upper region, and said face plate mounting surface having a plurality of lower region channels formed in said lower region and a plurality of upper region channels formed in said upper region,

wherein said lower region channels have a depth greater than a depth of said upper region channels, and

wherein said channels formed within said face plate mounting surface have binding and damping material provided therein for affixing said face insert plate to said face plate mounting surface.

19. The golf club head of claim 18, wherein said faceplate mounting surface comprises a base wall of a face insert receiving cavity.

20. The golf club head of claim 19, wherein said cavity has a side wall extending around an entire perimeter of said cavity.

21. The golf club head of claim 20, wherein said side wall has a lower section whereon a plurality of face insert plate positioning nubs are formed.

22. A method of manufacturing a golf club head, said method comprising steps of:

forming a club head body, said club head body having a face insert receiving cavity,

forming a plurality of channels having a varying depth within a base wall of said face insert receiving cavity;

injecting binding material into said face insert receiving cavity; and

affixing a face plate within said face insert receiving cavity.

23. The method of claim 22, wherein said face insert cavity includes a lower region and an upper region, and wherein forming sections of said channels in said lower region have a depth that exceeds a depth of said channels in said upper region.

24. The method of claim 23, wherein forming said channels include a first set of channels that intersects a second set of channels at a predetermined angle.

25. The method of claim 24, wherein said first and second sets of channels have an orthogonal relationship, and wherein forming said sets of channels to intersect a vertical plane orthogonal to said face at substantially a 45°

angle when said golf club head is properly positioned to address a golf ball.

26. The method of claim 25, wherein forming a depth of each said channel in said lower region to decrease linearly as each said channel approaches said upper region, and wherein forming a depth of each said channel in said upper region to increase linearly as each said channel approaches said lower region.

27. The method of claim 25, wherein forming said lower region channels to have a maximum depth of substantially 0.048 inches, said upper region channels have a maximum depth of substantially 0.019 inches, and said lower and upper region channels have an internal radius of curvature of substantially 0.060 inches and a trough-to-trough separation of substantially 0.400 inches.

28. The method of claim 27, wherein forming said face insert receiving cavity has a side wall that extends around an entire perimeter of said cavity.

29. The method of claim 28, wherein forming said side wall has a lower section whereon a plurality of face inset plate positioning nubs are formed.