ROTATIONAL MOLDED GOLF CLUB HEAD

• US 20180072008A1
• Filed: 11/17/2017
• Published: 03/15/2018
• Est. Priority Date: 04/05/2007
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Karsten Manufacturing Corporation
• Inventors: Stites, John T., Tavares, Gary G., Waatti, Todd A.
• Granted Patent: US 10,525,644 B2
• Time in Patent Office: Days
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 2209/02 with reinforcing fibres, e.g. carbon, polyamide fibres
• CPC Class Codes: A63B 53/04 Heads
• 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 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence
• CPC Class Codes: B29C 41/04 Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
• CPC Class Codes: B29C 41/20 incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
• CPC Class Codes: B29C 70/68 by incorporating or moulding on preformed parts, e.g. inserts or layers , e.g. foam blocks mould constructions therefor B29C33/12; joining preformed parts by moulding B29C65/70
• CPC Class Codes: B29C 70/681 Component parts, details or accessories; Auxiliary operations
• CPC Class Codes: B29K 2101/00 Use of unspecified macromolecular compounds as moulding material use of unspecified rubbers B29K2021/00
• CPC Class Codes: B29K 2705/00 Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
• CPC Class Codes: B29L 2031/5227 Clubs

Abstract

Wood-type golf clubs and/or golf club heads include: (a) a golf club head base member including a face member having a ball striking face; and (b) a polymeric body member engaged with the golf club head base member, wherein the polymeric body member is formed via a rotational molding process (or other centrifugal force inducing molding process) and/or engaged with the golf club head base member via a rotational molding process (or other centrifugal force inducing molding process). The polymeric body member forms at least a portion of a crown member of the club head in some structures.

Claims

1. A golf club head, comprising:

a golf club head base member including a face portion and an aft portion engaged with the face portion, wherein;

the aft portion comprises a polymeric or composite material,

an exterior surface of the golf club head base member steps inward between the face portion and the aft portion,

the aft portion includes at least a first opening and a second opening defined through it,

the first opening and the second opening are separated from one another by a part of the aft portion of the golf club head base member, and

the part of the aft portion separating the first opening and the second opening has an outer surface and an inner surface opposite the outer surface; and

a polymeric body engaged with the aft portion of the golf club head base member at least in part by embedding the part of the aft body portion separating the first opening and the second opening within a polymer material of the polymeric body so that the polymeric material extends through and fills the first and second openings and covers either one or both of the outer and inner surfaces of the part of the aft body portion separating the first opening and the second opening;

wherein the polymeric body overlays the outer surface of the aft portion of the golf club head base member,

wherein at least some portion of an exterior surface of the polymeric body is coated with a metal containing material.

2. A golf club head according to claim 1, wherein the first opening and the second opening are located at a crown area of the aft portion of the golf club head base member.

3. A golf club head according to claim 1, wherein the aft body portion is a separate part that is engaged with the face portion to form a unitary structure for the golf club head base member.

4. A golf club head according to claim 3, wherein the aft body portion is formed from a polymeric material, including but not limited to:

polyethylene materials, polyvinylchlorides and polyvinylchloride plastisols, nylons or other polyamides, and polypropylenes.

5. A golf club head according to claim 3, wherein the aft body portion is formed from a composite material, including but not limited to:

carbon fiber composites and basalt fiber composites.

6. A golf club head according to claim 3, wherein the aft body portion is epoxied to the face portion.

7. A golf club head according to claim 3, wherein the aft body portion is engaged with the face portion via mechanical connectors.

8. A golf club head according to claim 1, wherein the aft body portion further includes a third opening defined through it, wherein the third opening is separated from the second opening by a second part of the aft portion, and wherein the polymeric body further extends through and fills the third opening such that the second part of the aft portion is embedded within the polymeric body.

9. A golf club head according to claim 1, wherein the polymeric body is bounded in its extent such that the inner surface of the aft body portion is at least partially exposed to the hollow interior cavity of the golf club head.

10. A golf club head, comprising:

a golf club head base member including a face portion and a frame member engaged with the face portion, wherein;

the frame member is integrally formed or engaged with the face portion,

the face portion and the frame member are joined at an inward stepped area,

the frame member includes a plurality of openings defined through it, including at least a first opening and a second opening,

the first opening and the second opening are separated from one another by a part of the frame member,

the part of the frame member separating the first opening and the second opening has an outer surface and an inner surface opposite the outer surface; and

the frame member comprises a polymeric or carbon composite material;

a polymeric body engaged with the frame member,

wherein the polymeric body overlays and fills in the inward stepped area,

wherein the part of the frame member separating the first opening and the second opening is embedded within the polymeric body so that polymeric material of the polymeric body extends through and fills the first opening and the second opening and covers either one or both of the outer and inner surfaces of the part of the frame member separating the first opening and the second opening;

wherein at least some portion of an exterior surface of the polymeric body is coated with a metal containing material.

11. A golf club head according to claim 10, wherein the first opening and the second opening are located at a crown area of the frame member of the golf club head.

12. A golf club head according to claim 10, wherein the frame member is a separate part that is engaged with the face portion to form a unitary structure for the golf club head base member.

13. A golf club head according to claim 12, wherein the frame member is formed from a polymeric material, including but not limited to:

polyethylene materials, polyvinylchlorides and polyvinylchloride plastisols, nylons or other polyamides, and polypropylenes.

14. A golf club head according to claim 12, wherein the frame member is formed from a carbon composite material, including but not limited to:

carbon fiber composites and basalt fiber composites.

15. A golf club head according to claim 12, wherein the frame member is epoxied to the face portion.

16. A golf club head according to claim 12, wherein the frame member is engaged with the face portion via mechanical connectors.

17. A golf club head according to claim 10, wherein the frame member further includes a third opening defined through it, wherein the third opening is separated from the second opening by a second part of the frame member, and wherein the polymeric body further extends through and fills the third opening such that the second part of the frame member is embedded within the polymeric body.

18. A golf club head according to claim 10, wherein the polymeric body is bounded in its extent such that the inner surface of the aft body portion is at least partially exposed to the hollow interior cavity of the golf club head.

19. A golf club head according to claim 10, wherein an exposed portion of the base member is coated with a metal containing material.

20. A golf club head according to claim 10, wherein the frame member further includes a third opening defined through it, wherein the third opening is separated from the second opening by a second part of the frame member, and wherein the polymeric body further extends through and fills the third opening such that the second part of the frame member is embedded within the polymeric body.