Golf club heads with ribs and related methods

• US 10,449,427 B2
• Filed: 09/17/2018
• Issued: 10/22/2019
• Est. Priority Date: 05/02/2013
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Karsten Manufacturing Corporation
• Inventors: Stokke, Ryan M., Jertson, Martin R., Higdon, David A., Chen, Xiaojian
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US16/133,331
• Publication Number:
  US 20190009144A1
• Time in Patent Office: 400 Days
• Field of Search: 473324-350, 473287-292
• 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 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/045 Strengthening ribs
• CPC Class Codes: A63B 53/0466 wood-type

Abstract

Provided herein are embodiments of golf club heads comprising a crown and a ribbed region. The ribbed region of the golf club head can be positioned on a portion of the crown and can further include a ribbed wall, wherein the ribbed wall comprises a ribbed wall interior surface, a ribbed wall exterior surface, and one or more external ribs. The one or more external ribs can protrude from the ribbed region to increase the strength of the crown and beneficially reduce crown thickness. Other embodiments and related methods are disclosed herein.

Claims

1. A golf club head comprising:

a front end;

a back end opposite the front end;

a heel portion;

a toe portion opposite the heel portion;

a sole;

a crown opposite the sole having a length;

a faceplate; and

a ribbed region positioned on a portion of the crown;

wherein the ribbed region comprises;

a ribbed wall comprising;

a ribbed wall interior surface facing an interior of the golf club head;

a ribbed wall exterior surface facing an exterior of the golf club head opposite the ribbed wall interior surface; and

a thickness measured from the ribbed wall interior surface to the ribbed wall exterior surface that is less than 0.8 mm;

one or more external ribs protruding from the ribbed wall exterior surface, wherein the one or more external ribs extend from near the back end toward near front end of the club head in the ribbed region;

the one or more external ribs comprise a first external rib having;

a first, first external rib endpoint;

a second, first external rib endpoint; and

a first external rib axis intersecting the first, first external rib endpoint and the second, first external rib endpoint; and

the one or more external ribs further comprise a second external rib having;

a first, second external rib endpoint;

a second, second external rib endpoint; and

a second external rib axis intersecting the first, second external rib endpoint and the second, second external rib endpoint;

wherein;

the length of the crown extends from the front end to the back end direction;

the crown of the golf club head includes a front portion, a middle portion, and a rear portion;

the front portion of the crown is proximal to the faceplate and comprises a length that is ⅓

of the length of the crown; and

where a thickness of the front portion is between 0.025 inch (0.635 mm) and 0.029 inch (0.890 mm);

the rear portion of the crown is proximal to the back end and comprises a length that is ⅓

of the length of the crown;

the middle portion of the crown is between the rear portion and the front portion and comprises a length that is ⅓

of the length of the crown;

one of the entire middle portion or the entire rear portion has a thickness less than or equal to 0.020 inch (0.508 mm);

the one or more external ribs comprises an external rib height, wherein the external rib height decreases from the back end to the front end of the golf club head; and

the first external rib axis and the second external rib axis intersect each other external to the golf club head, rearward the faceplate.

2. The golf club head of claim 1, wherein:

the first external rib axis and the second external rib axis intersect each other at a common point.

3. The golf club head of claim 1, wherein:

the first external rib axis and the second external rib axis are tangent to a locus defined by a conic section perimeter.

4. The golf club head of claim 3, wherein:

the conic section perimeter comprises a circular perimeter.

5. The golf club head of claim 1, wherein:

a front distance measured from the top of the faceplate to the ribbed region is between 0.5 inch (12.7 mm) and 3.00 inch (76.4 mm); and

the front distance is the same for the first and second external ribs.

6. The golf club head of claim 1, wherein:

a heel side rear distance measured from a heel club head edge to the ribbed region, wherein the heel club head edge is defined along a perimeter of the heel portion;

wherein the heel side rear distance varies along the heel portion.

7. The golf club head of claim 1, wherein:

a toe side rear distance measured from a toe club head edge to the ribbed region, wherein the toe club head edge is defined along a perimeter of the toe portion;

wherein the toe side rear distance varies along the toe portion.

8. The golf club head of claim 1, wherein:

the one or more external ribs comprises;

a longitudinal edge extending in a direction from the back end to the front end of the golf club head;

a lateral edge extending in a direction from the toe portion to the heel portion of the golf club head;

wherein;

an obtuse angle is defined between the longitudinal edge and the lateral edge of the one or more external ribs.

9. The golf club head of claim 1, wherein:

at least one of the one or more external ribs comprise an external rib width, where the external rib width increases from the back end to the front end of the golf club head.

10. The golf club head of claim 1, wherein:

a thickness of the front portion of the crown is less than 0.8 mm.

11. The golf club head of claim 1, wherein one of the entire middle portion or the entire rear portion has a thickness of less than or equal to 0.0185 inch (0.4699 mm).

12. A golf club head comprising:

a front end;

a back end opposite the front end;

a heel portion;

a toe portion opposite the heel portion;

a sole;

a crown opposite the sole having a length;

a faceplate; and

a ribbed region positioned on a portion of the crown, the ribbed region comprising;

a ribbed wall comprising;

a ribbed wall interior surface facing an interior of the golf club head;

a ribbed wall exterior surface facing an exterior of the golf club head opposite the ribbed wall interior surface; and

a thickness measured from the ribbed wall interior surface to the ribbed wall exterior surface that is less than 0.8 mm;

one or more external ribs protruding from the ribbed wall exterior surface, wherein the one or more external ribs extend from near the back end toward near front end of the club head in the ribbed region;

the one or more external ribs comprise a first external rib having;

a first, first external rib endpoint;

a second, first external rib endpoint; and

a first external rib axis intersecting the first, first external rib endpoint and the second, first external rib endpoint; and

the one or more external ribs further comprise a second external rib having;

a first, second external rib endpoint;

a second, second external rib endpoint; and

a second external rib axis intersecting the first, second external rib endpoint and the second, second external rib endpoint;

wherein;

the length of the crown extends from the front end to the back end direction;

the crown of the golf club head includes a front portion, a middle portion, and a rear portion;

the front portion of the crown is proximal to the faceplate and comprises a length that is ⅓

of the length of the crown; and

where a thickness of the front portion is between 0.025 inch (0.635 mm) and 0.029 inch (0.890 mm);

the rear portion of the crown is proximal to the back end and comprises a length that is ⅓

of the length of the crown;

the middle portion of the crown is between the rear portion and the front portion and comprises a length that is ⅓

of the length of the crown;

one of the entire middle portion or the entire rear portion has a thickness less than or equal to 0.020 inch (0.508 mm);

the one or more external ribs comprises an external rib height, wherein the external rib height decreases from the back end to the front end of the golf club head; and

the first external rib axis and the second external rib axis do not intersect each other and are tangent to a locus defined by a conic section perimeter external to the golf club head, rearward the face plate.

13. The golf club head of claim 12, wherein:

the conic section perimeter comprises a circular perimeter.

14. The golf club head of claim 12, wherein:

a front distance measured from the top of the faceplate to the ribbed region is between 0.5 inch (12.7 mm) and 3.00 inch (76.4 mm); and

the front distance is the same for the first and second external ribs.

15. The golf club head of claim 12, wherein:

a heel side rear distance measured from a heel club head edge to the ribbed region, wherein the heel club head edge is defined along a perimeter of the heel portion;

wherein the heel side rear distance varies along the heel portion.

16. The golf club head of claim 12, wherein:

a toe side rear distance measured from a toe club head edge to the ribbed region, wherein the toe club head edge is defined along a perimeter of the toe portion;

wherein the toe side rear distance varies along the toe portion.

17. The golf club head of claim 12, wherein:

the one or more external ribs comprises;

a longitudinal edge extending in a direction from the back end to the front end of the golf club head;

a lateral edge extending in a direction from the toe portion to the heel portion of the golf club head;

wherein;

an obtuse angle is defined between the longitudinal edge and the lateral edge of the one or more external ribs.

18. The golf club head of claim 12, wherein:

at least one of the one or more external ribs comprise an external rib width, where the external rib width increases from the back end to the front end of the golf club head.

19. The golf club head of claim 12, wherein:

a thickness of the front portion of the crown is less than 0.8 mm.

20. The golf club head of claim 12, wherein one of the entire middle portion or the entire rear portion has a thickness of less than or equal to 0.0185 inch (0.4699 mm).