Variable loft golf clubs and methods to manufacture variable loft golf clubs

• US 10,350,469 B2
• Filed: 07/02/2014
• Issued: 07/16/2019
• Est. Priority Date: 07/12/2013
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Karsten Manufacturing Corporation
• Inventors: Serrano, Anthony D., Higdon, David A.
• Primary Examiner(s): Layno, Benjamin
• Application Number:
  US14/322,256
• Publication Number:
  US 20150018122A1
• Time in Patent Office: 1,840 Days
• Field of Search: 473341, 473342, 473349, 473331, 473334, 473335, 473336, 473340
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/042 the face insert consisting of a material different from that of the head
• CPC Class Codes: A63B 53/0445 Details of grooves or the like on the impact surface
• 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 53/06 adjustable
• CPC Class Codes: A63B 53/065 for putters
• 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 29/49 Method of mechanical manufacture

Abstract

A golf club head includes a face portion, a first faceplate configured to be removably attached to the face portion, a second faceplate configured to be removably attached to the face portion, the second face plate having a different configuration than the first faceplate, and a first fastener and a second fastener configured to attach the first faceplate or the second faceplate to the face portion, each fastener having an indicator configured to indicate a weight associated with the fastener.

Claims

1. A golf club head comprising:

a face portion, a back portion, a sole portion, a top rail portion, a heel portion and a toe portion;

wherein the face portion is configured to have a toe side blind receiving hole and a heel side blind receiving hole;

wherein the face portion comprises a generally flat front surface;

wherein the face portion also consists of a single indentation generally in a center position, and except for the single indentation, the flat front surface of the face portion spans uninterrupted from the top rail portion to the sole portion and from the toe side blind receiving hole to the heel side blind receiving hole;

wherein the face portion, the back portion, the sole portion, the top rail portion, the heel portion, and the toe portion are an integral, single piece;

a first faceplate configured to be removably attached to the face portion;

a second faceplate configured to be removably attached to the face portion, the second face plate having a different configuration than the first faceplate; and

a first fastener and a second fastener configured to attach the first faceplate or the second faceplate to the face portion, each fastener having an indicator configured to indicate a weight associated with the fastener;

wherein the first faceplate is configured to include a first toe side hole that extends through a thickness of the first faceplate and a second heel side hole that extends through the thickness of the first faceplate,

and the second faceplate is configured to include a first toe side hole that extends through a thickness of the second faceplate and a second heel side hole that extends through the thickness of the second faceplate, and,

wherein the first faceplate and the second faceplate each consist of a single projection on a rear surface that inserts into the single indentation of the face portion to properly align the first or second faceplate on the face portion,

and

wherein the first fastener is inserted through the first toe side hole of the first or second faceplate into the toe side blind receiving hole in the face portion, and the second fastener is inserted through the second heel side hole of the first or second faceplate into the heel side blind receiving hole in the face portion to attach the first faceplate or the second faceplate to the face portion,

wherein the first faceplate or the second faceplate cover the profile of the face portion of the golf club head.

2. The golf club head as defined in claim 1, wherein the indicator is visible when the first faceplate or the second faceplate is attached to the face portion.

3. The golf club head as defined in claim 1, wherein when the second faceplate is attached to the face portion, the face portion has a loft angle that is different from a loft angle of the face portion when the first faceplate is attached to the face portion.

4. The golf club head as defined in claim 1, wherein the first faceplate and the second faceplate are at least partially constructed from a different material.

5. The golf club head as defined in claim 1, wherein the first faceplate comprises grooves on a ball striking side of the first faceplate, wherein the second faceplate comprises grooves on a ball striking side of the second faceplate, and wherein the grooves of the first faceplate have a different configuration than the grooves of the second faceplate.

6. The golf club head as defined in claim 1 further comprising at least one of:

the first fastener having a greater weight than the second fastener;

the first fastener having a lower weight than the second fastener;

or

the first fastener and the second fastener having substantially a same weight.

7. The golf club head as defined in claim 1, wherein each of the first faceplate and the second faceplate comprises:

a front side configured to strike a ball, a back side configured to face the face portion, a top rail portion and a sole portion;

wherein a thickness of the first faceplate or the second faceplate is defined by the distance between the front side and the back side; and

wherein a change in thickness from the top rail portion to the sole portion defines a loft angle associated with the first faceplate or the second faceplate.

8. The golf club head as defined in claim 1, further comprising:

an elastomeric layer;

wherein;

each of the first faceplate and the second faceplate further comprises a ball striking side and a faceplate rear surface opposite the ball striking side;

when the first faceplate is attached to the face portion, the elastomeric layer is between the front surface of the face portion and the faceplate rear surface of the first faceplate; and

when the second faceplate is attached to the face portion, the elastomeric layer is between the front surface of the face portion and the faceplate rear surface of the second faceplate.

9. The golf club head as defined in claim 1, wherein:

each of the first faceplate and the second faceplate further comprises a ball striking side and a faceplate rear surface opposite the ball striking side;

when the first faceplate is attached to the face portion, no cavity is formed between the rear surface of the first faceplate and the front surface of the face portion; and

when the second faceplate is attached to the face portion, no cavity is formed between the rear surface of the second faceplate and the front surface of the face portion.

10. A golf club head comprising:

a face portion, a back portion, a sole portion, a top rail portion, a heel portion and a toe portion;

wherein a heel fastener port and a toe fastener port are blind holes in the face portion;

wherein the face portion comprises a generally flat front surface;

wherein the face portion also consists of a single indentation generally in a center position, and except for the single indentation, the flat front surface of the face portion spans uninterrupted from the top rail portion to the sole portion and from the toe fastener port to the heel fastener port;

wherein the face portion, the back portion, the sole portion, the top rail portion, the heel portion, and the toe portion are an integral, single piece;

a plurality of interchangeable faceplates configured to be removably attached to the face portion;

wherein each faceplate of the plurality of faceplates comprising a heel portion, a toe portion, a heel hole on or proximate to the heel portion, and a toe hole on or proximate to the toe portion;

wherein each faceplate consists of a single projection on a rear surface that inserts into the single indentation of the face portion to properly align each faceplate on the face portion,

and

a plurality of fasteners, each fastener configured to interchangeably engage between each faceplate and the heel fastener port or the toe fastener port to attach each faceplate to the face portion, at least two of the plurality of fasteners having the same weight and at least two of the plurality of the fasteners having a different weight to adjust a weight configuration between the heel portion and the toe portion;

wherein each fastener of the plurality of fasteners comprises a shaft portion and a head portion, the shaft portion configured to traverse through the heel hole or the toe hole of any of the faceplates of the plurality of faceplates and engage the heel fastener port or the toe fastener port of the face portion to at least partially attach the faceplate to the face portion,

wherein a first faceplate or a second faceplate cover a profile of the face portion of the golf club head.

11. The golf club head as defined in claim 10, wherein when each faceplate of the plurality of the faceplates is attached to the face portion, the face portion has a loft angle that is different from a loft angle of the face portion when another one of the plurality of faceplates is attached to the face portion.

12. The golf club head as defined in claim 10, wherein at least two of the faceplates of the plurality of faceplates are at least partially constructed from a different material.

13. The golf club head as defined in claim 10, wherein a first faceplate of the plurality of faceplates comprises grooves on a ball striking side of the first faceplate, wherein a second faceplate of the plurality of faceplates comprises grooves on a ball striking side of the second faceplate, and wherein the grooves of the first faceplate have a different configuration than the grooves of the second faceplate.

14. The golf club head as defined in claim 10, wherein a difference in weight between a pair of fasteners of the plurality of fasteners used to attach a faceplate of the plurality of faceplates to the face portion is visually identifiable when the faceplate is attached to the face portion.

15. The golf club head as defined in claim 10, wherein each of the faceplates of the plurality of faceplates comprises:

a front side configured to strike a ball, a back side configured to face the face portion, a top rail portion and a sole portion;

wherein a thickness of each faceplate of the plurality of faceplates is defined by a distance between the front side and the back side; and

wherein a change in thickness from the top rail portion to the sole portion defines a loft angle associated with each faceplate of the plurality of faceplates.

16. A method of manufacturing a golf club head comprising:

forming a face portion, a back portion, a sole portion, a top rail portion, a heel portion and a toe portion;

wherein the face portion is configured to have a toe side blind receiving hole and a heel side blind receiving hole;

wherein forming the face portion comprises forming a generally flat front surface;

wherein the face portion also consists of a single indentation generally in a center position, and except for the single indentation, the flat front surface of the face portion spans uninterrupted from the top rail portion to the sole portion and from the toe side blind receiving hole to the heel side blind receiving hole;

forming the face portion, the back portion, the sole portion, the top rail portion, the heel portion, and the toe portion as an integral, single piece;

forming a first faceplate configured to be removably attached to the face portion;

forming a second faceplate configured to be removably attached to the face portion, the second face plate having a different configuration than the first faceplate;

wherein the first faceplate is configured to include a first toe side hole that extends through a thickness of the first faceplate and a second heel side hole that extends through the thickness of the first faceplate, and,

wherein the first faceplate and the second faceplate each consist of a single projection on a rear surface that inserts into the single indentation of the face portion to properly align the first or second faceplate on the face portion,

and

forming a first fastener and a second fastener configured to attach the first faceplate or the second faceplate to the face portion, each fastener having an indicator configured to indicate a weight associated with the fastener;

wherein the first fastener is inserted through the first toe side hole of the first or second faceplate into the toe side blind receiving hole in the face portion and the second fastener is inserted through the second heel side hole of the first or second faceplate into the heel side blind receiving hole in the face portion to attach the first faceplate or the second faceplate to the face portion,

wherein the first faceplate or the second faceplate cover a profile of the face portion of the golf club head.

17. The method as defined in claim 16, further comprising forming the first face plate and the second faceplate such that when the second faceplate is attached to the face portion, the face portion has a loft angle that is different from a loft angle of the face portion when the first faceplate is attached to the face portion.

18. The method as defined in claim 16, further comprising forming the first faceplate and the second faceplate at least partially from a different material.

19. The method as defined in claim 16, further comprising forming grooves on a ball striking side of the first faceplate and forming grooves on a ball striking side of the second faceplate such that the grooves of the first faceplate have a different configuration than the grooves of the second faceplate.

20. The method as defined in claim 16, further comprising at least one of:

forming the first fastener to have a greater weight than the second fastener;

forming the first fastener to have a lower weight than the second fastener;

or forming the first fastener and the second fastener to have substantially a same weight.

21. The method as defined in claim 16, further comprising:

forming the face portion to further comprise a heel portion, a toe portion, a heel fastener port on or proximate to the heel portion, and a toe fastener port on or proximate to the toe portion;

forming each of the first faceplate and the second faceplate to further comprising a heel portion, a toe portion, a heel hole on or proximate to the heel portion, and a toe hole on or proximate to the toe portion;

forming each of the first fastener and the second fastener to further comprise a shaft portion and a head portion, the shaft portion configured to traverse through the heel hole or the toe hole of the first faceplate or the second faceplate and engage the heel fastener port or the toe fastener port of the face portion to at least partially attach the first faceplate or the second faceplate to the face portion, wherein the head portion, the heel hole and the toe hole are configured such that the head portion is visible from the heel hole or the toe hole when a shaft is engaged to the heel fastener port or the toe fastener port.

22. The method as defined in claim 16, wherein forming each of the first faceplate and the second faceplate to further comprise:

a front side configured to strike a ball, a back side configured to face the face portion, a top rail portion and a sole portion;

wherein a thickness of the first faceplate or the second faceplate is defined by a distance between the front side and the back side; and

wherein a change in thickness from the top rail portion to the sole portion defines a loft angle associated with the first faceplate or the second faceplate.