Method of manufacturing a face plate for a golf club head

• US 9,089,746 B2
• Filed: 08/12/2014
• Issued: 07/28/2015
• Est. Priority Date: 03/17/2004
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Karsten Manufacturing Corporation
• Inventors: Schweigert, Bradley D.
• Primary Examiner(s): Koehler, Christopher M
• Application Number:
  US14/457,903
• Publication Number:
  US 20140348607A1
• Time in Patent Office: 350 Days
• Field of Search: 295/57, 295/58, 407/53, 407/54, 473/329, 473/345, 473/349, 473/346, 473/342, 473/330, 473/331, 473/332
• US Class Current: 1/1
• 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 53/0458 with non-uniform thickness of the impact face plate
• CPC Class Codes: A63B 53/0462 characterised by tapering 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
• CPC Class Codes: B23C 3/13 Surface milling of plates, sheets or strips
• CPC Class Codes: Y10T 29/49 Method of mechanical manufacture
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49995 Shaping one-piece blank by removing material
• CPC Class Codes: Y10T 407/1946 Face or end mill
• CPC Class Codes: Y10T 409/303752 Process
• CPC Class Codes: Y10T 83/0304 Grooving

Abstract

Golf club heads with patterned face plates described herein. Other examples, embodiments and related methods are also disclosed herein.

Claims

1. A method for providing a golf club head, the method comprising:

providing a face plate material for a face plate having a strike side and a back side; and

milling the face plate material in a single elliptical orbit to define a contoured surface at the back side such that no further passes are required to define the contoured surface, the contoured surface including a central region having a first elliptical outer edge surrounded by a transition region extended from the central region to a peripheral region, the transition region having a second elliptical outer edge and a thickness decreasing in a non-linear transition from the first elliptical outer edge to the second elliptical outer edge, the thickness measured from the strike side to the back side;

wherein the first elliptical outer edge has a first aspect ratio, a first major axis, and a first minor axis;

wherein the second elliptical outer edge has a second aspect ratio, a second major axis, and a second minor axis; and

wherein the second major axis is equal to the first major axis plus a predefined distance, the second minor axis is equal to the first minor axis plus the predefined distance, and the second aspect ratio is less than the first aspect ratio.

2. The method of claim 1, wherein:

the first and second elliptical outer edges are non-circular;

the transition region comprises a curved lateral surface extending between the first elliptical outer edge to the second elliptical outer edge; and

each point along the second elliptical outer edge is displaced outward from the first elliptical outer edge by an amount equal to half of the predefined distance.

3. The method of claim 1, wherein:

the transition region comprises a frustum-like region formed by at least one curved edge of a lateral cutting surface of a cutting device.

4. The method of claim 1, wherein:

the transition region comprises a frustum-like region having at least one of a convex lateral surface or a concave lateral surface curving from the first elliptical outer edge to the second elliptical outer edge.

5. The method of claim 1, wherein:

cross sectional profiles of the transition region, from the first elliptical outer edge to the second elliptical outer edge, are the same when the cross sectional profiles are taken along planes that are perpendicular to the major and minor axes of the second elliptical outer edge.

6. The method of claim 1, wherein:

the central region comprises a constant thickness throughout.

7. The method of claim 1, wherein:

an entirety of the non-linear transition of the transition region is convex relative to the strike side.

8. The method of claim 1, wherein:

an entirety of the non-linear transition of the transition region is concave relative to the strike side.

9. The method of claim 1, wherein:

from the strike side to the back side of the face plate material;

an entirety of the central region within the first elliptical outer edge is thicker than the transition region and thicker than the peripheral region.

10. The method of claim 1, wherein:

the transition region comprises a substantially constant width throughout the transition region and between the first and second elliptical outer edges.

11. A method for providing a golf club head, the method comprising:

providing a shell having an opening; and

providing a face plate configured to be attached to the opening to form a hollow body, the face plate having a strike and a back side; and

milling the face plate in a single elliptical orbit to define a frustum-like surface of revolution at the back side such that no further passes are required to define the frustum-like surface of revolution, the frustum-like surface of revolution including a first region having a first elliptical outer edge, a second region having a second elliptical outer edge, and a transition region between the first region and the second region, the transition region having a curved surface extending from the first elliptical outer edge to the second elliptical outer edge and a thickness decreasing in a non-linear transition from the first elliptical outer edge to the second elliptical outer edge, the thickness measured from the strike side to the back side;

wherein the first elliptical outer edge has a first aspect ratio, a first major axis, and a first minor axis;

wherein the second elliptical outer edge has a second aspect ratio, a second major axis and a second minor axis; and

wherein the second major axis is equal to the first major axis plus a predefined distance, the second minor axis is equal to the first minor axis plus the predefined distance, and the second aspect ratio is less than the first aspect ratio.

12. The method of claim 11, wherein:

the curved surface of the transition region is curved inward from the first elliptical outer edge to the second elliptical outer edge.

13. The method of claim 11, wherein:

the curved surface of the transition region is curved outward from the first elliptical outer edge to the second elliptical outer edge.

14. The method of claim 11, wherein:

the frustum-like surface of revolution is formed by at least one curved edge of a lateral cutting surface of a cutting device.

15. The method of claim 11, wherein:

the first region comprises a constant thickness greater than any thickness of the transition region.

16. The method of claim 11, wherein:

an entirety of the non-linear transition of the transition region is convex relative to the strike side.

17. The method of claim 11, wherein:

an entirety of the non-linear transition of the transition region is concave relative to the strike side.

18. The method of claim 11, wherein:

from the strike side to the back side of the face plate;

an entirety of the first region within the first elliptical outer edge is thicker than the transition region and thicker than the second region.

19. The method of claim 11, wherein:

the transition region comprises a substantially constant width throughout the transition region and between the first and second elliptical outer edges.