Golf club head or other ball striking device having multi-piece construction

• US 7,993,216 B2
• Filed: 11/17/2008
• Issued: 08/09/2011
• Est. Priority Date: 11/17/2008
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Nike, Inc.
• Inventors: Lee, David S.
• Primary Examiner(s): Passaniti; Sebastiano
• Application Number:
  US12/272,442
• Publication Number:
  US 20100125000A1
• Time in Patent Office: 995 Days
• Field of Search: 473324-350, 473287-292
• US Class Current: 473/334
• 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 2209/023 Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
• 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 53/0466 wood-type
• CPC Class Codes: A63B 53/06 adjustable
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: Y10T 29/49947 by applying separate fastener

Abstract

A ball striking device has a head that includes a metal face configured for striking a ball, a rearwardly extending metal band, a top piece, and a bottom piece. The metal band has a first end extending from one side of the face, a second end extending from the opposite side of the face, and a rear portion extending between the first and second ends and defining at least a portion of the rear periphery of the head. The top piece and the bottom piece are non-metallic or substantially non-metallic. The top piece is connected to the top side of the metal band and forms at least a portion of a top side of the head, and the bottom piece is connected to the bottom side of the metal band and forms at least a portion of a bottom side of the head. The top piece and the bottom piece are separated by the metal band.

Claims

1. A ball striking device comprising:

a head comprising;

a metal face configured for striking a ball, wherein the face is formed by a cup face member that includes a ball striking face and a return portion extending rearward from a periphery of the ball striking face;

a metal band having a first end extending from a first side of the return portion, a second end extending from a second, opposed side of the return portion, and a rear portion extending between the first and second ends, the band and the return portion combining to define a first opening on a top side of the metal band and the band further defining a second opening on a bottom side of the metal band;

a substantially non-metallic top piece connected to the top side of the metal band and forming at least a portion of a top side of the head, wherein the top piece is positioned to cover the first opening and is larger than the first opening, such that a portion of the top piece engages an inner surface of the band and an inner surface of the return portion around the first opening to secure the top piece in place; and

a substantially non-metallic bottom piece connected to the bottom side of the metal band and forming at least a portion of a bottom side of the head, wherein the bottom piece is positioned to cover the second opening and is larger than the second opening, such that a portion of the bottom piece engages the inner surface of the band around the second opening to secure the bottom piece in place,

wherein the top piece and the bottom piece are separated by the metal band.

2. The ball striking device of claim 1, wherein the face and the band are made from the same metallic material.

3. The ball striking device of claim 1, wherein the top piece and the bottom piece are made from carbon fiber-polymer composite materials.

4. The ball striking device of claim 1, wherein the face and the band are formed separately and are connected by an integral joining technique, and the top piece and the bottom piece are connected to the band by an adhesive.

5. The ball striking device of claim 1, wherein the head further comprises a metal arm extending across the bottom side of the head from the face to a rear, central location of the band, wherein the second opening is defined by the band and the arm, and wherein the portion of the bottom piece further engages an inner surface of the arm around the second opening to secure the bottom piece in place.

6. The ball striking device of claim 5, wherein the first opening is defined between the bottom side of the band and a first side of the arm, and wherein a third opening is defined by the bottom side of the band and a second, opposed side of the arm, the head further comprising a second substantially non-metallic bottom piece connected to the bottom side of the band and forming at least a portion of a bottom side of the head, wherein the second bottom piece is positioned to cover the third opening and is larger than the third opening, such that a portion of the second bottom piece engages the inner surface of the band and the inner surface of the arm around the third opening to secure the second bottom piece in place wherein the first and second bottom pieces are separate from one another.

7. The ball striking device of claim 5, wherein the metal arm and the metal band are formed together as a single, unitary piece.

8. The ball striking device of claim 1, wherein the head further comprises at least one weight member connected to the metal band.

9. The ball striking device of claim 1, further comprising a shaft connected to the head.

10. A ball striking device comprising:

a head comprising;

a metal front piece comprising a cup face member that includes a face configured for striking a ball and at least one wall extending rearward from a periphery of the face;

a metal back piece extending from the front piece, the back piece and the at least one wall of the front piece defining a first opening on a top side thereof, and the back piece defining a second opening on a bottom side thereof;

a substantially non-metallic top piece connected to the back piece and the front piece and positioned to cover the first opening and forming part of an outer surface of the head, wherein the top piece is larger than the first opening and overlaps a periphery of the first opening, such that a portion of the top piece engages an inner surface of the back piece and an inner surface of the at least one wall around the periphery of the first opening to secure the top piece in place; and

a substantially non-metallic bottom piece connected to the back piece and positioned to cover the second opening and forming part of the outer surface of the head, wherein the bottom piece is larger than the second opening and overlaps a periphery of the second opening, such that a portion of the bottom piece engages the inner surface of the band around the periphery of the second opening to secure the bottom piece in place, and wherein the back piece separates the bottom piece from top piece.

11. The ball striking device of claim 10, wherein the front piece and the back piece are made from the same metallic material.

12. The ball striking device of claim 10, wherein the top piece and the bottom piece are made from carbon fiber-polymer composite materials.

13. The ball striking device of claim 10, wherein the front piece and the back piece are formed separately and are connected by an integral joining technique, and the top piece and the bottom piece are connected to the back piece by an adhesive.

14. The ball striking device of claim 10, wherein the back piece further defines a third opening on the bottom side thereof, wherein the head further comprises a second bottom piece connected to the back piece and positioned to at least partially cover the third opening and forming part of the outer surface of the head, wherein the second bottom piece is larger than the third opening and overlaps a periphery of the third opening, such that a portion of the second bottom piece engages the inner surface of the band around the periphery of the third opening to secure the second bottom piece in place, and wherein the two bottom pieces do not contact one another.

15. The ball striking device of claim 10, wherein the head further comprises at least one weight member connected to the back piece.

16. The ball striking device of claim 10, further comprising a shaft connected to the head.

17. A method of forming a ball striking device comprising:

forming a metal front piece comprising a cup face member including a face configured for striking a ball and a return portion extending rearward from a periphery of the face;

forming a metal back piece having a front end and a rear end, the back piece comprising a band having a first end and a second end located at opposite edges of the front end and a rear portion extending between the first and second ends and forming the rear end of the back piece, and an arm extending from the front end of the back piece to the band at the rear end of the back piece, wherein the back piece is formed of a single, integral piece;

connecting the front piece to the back piece using an integral joining technique, such that the back piece and the return portion combine to define a first opening on a top side thereof, and wherein the back piece defines a second opening and a third opening on the bottom side thereof, wherein the second and third openings are defined between the band and the arm on opposite sides of the arm;

forming a substantially non-metallic top piece and two substantially non-metallic bottom pieces;

connecting the top piece to the back piece and the front piece, wherein the top piece engages inner surfaces of the return portion and the band and protrudes into the first opening to be positioned to cover the first opening and to form part of an outer surface of the ball striking device; and

connecting the bottom pieces to the back piece, wherein the bottom pieces engage inner surfaces of the arm and the band and protrude into the second and third openings to be positioned to cover the second and third openings, wherein the back piece separates the bottom pieces from the top piece, and the arm separates the bottom pieces from each other.

18. The method of claim 17, further comprising connecting a shaft to at least one of the front piece and the back piece.

19. The method of claim 17, wherein the front piece and the back piece are made from the same metallic material.

20. The method of claim 17, wherein the top piece and the bottom piece are made from carbon fiber-polymer composite materials.

21. The method of claim 17, wherein the top piece and the bottom piece are connected to the back piece by an adhesive.

22. The method of claim 17, further comprising connecting at least one weight member to the back piece.

23. A golf club head comprising:

a metal face configured for striking a ball, wherein the face is formed by a cup face member that includes a ball striking face and a return portion extending rearward from a periphery of the ball striking face;

a metal band having a first end extending from a first side of the return portion, a second end extending from a second, opposed side of the return portion, and a rear portion extending between the first and second ends;

a metal arm extending across a bottom side of the head from the face to a rear, central location of the band, wherein the face, the band, and the arm are integrally joined together to form a single piece;

a non-metallic top piece connected to a top side of the metal band and forming at least a portion of a top side of the head, wherein the top piece engages an inner surface of the metal band and an inner surface of the return portion; and

a pair of non-metallic bottom pieces connected to opposite sides of the arm and to a bottom side of the metal band and forming at least a portion of a bottom side of the head, wherein each of the bottom pieces engages an inner surface of the metal band and an inner surface of the arm,

wherein the top piece and the bottom piece are separated by the metal band.

24. The golf club head of claim 23, wherein the top piece and the bottom piece are made from carbon fiber-polymer composite materials.

25. The golf club head of claim 23, wherein the face is formed of a first piece and the band and the arm are formed together as a second piece, and the first and second pieces are connected by an integral joining technique to form the single piece, and the top piece and the bottom piece are connected to the band by an adhesive.

26. A golf club comprising:

a golf club head according to claim 23; and

a shaft connected to the golf club head.

27. A golf club head comprising:

a metal front piece comprising a cup face structure including a face configured for striking a ball and a return portion extending rearward from a periphery of the face;

a metal back piece extending from the front piece, the back piece and the return portion defining a first opening on a top side thereof, and the back piece defining a second opening on a bottom side thereof, wherein the back piece includes ridges extending around the first and second openings and located on an inner surface of the back piece;

a non-metallic top piece connected to the back piece and positioned to at least partially cover the first opening, wherein the top piece engages the inner surface of the back piece and an inner surface of the return portion and further engages the ridge extending around the first opening to secure the top piece in place; and

a non-metallic bottom piece connected to the back piece and positioned to at least partially cover the second opening, wherein the bottom piece does not contact the top piece, and wherein the bottom piece engages the inner surface of the back piece and further engages the ridge extending around the second opening to secure the bottom piece in place.

28. The golf club head of claim 27, wherein the top piece and the bottom piece are made from carbon fiber-polymer composite materials.

29. The golf club head of claim 27, wherein the front piece and the back piece are formed separately and are connected by an integral joining technique, and the top piece and the bottom piece are connected to the back piece by an adhesive.

30. The golf club head of claim 27, wherein the back piece further defines a third opening on the bottom side thereof, the back piece including a ridge extending around the third opening and located on the inner surface of the back piece, wherein the head further comprises another bottom piece connected to the back piece and positioned to at least partially cover the third opening, wherein the other bottom piece engages the ridge extending around the third opening to secure the bottom piece in place, and wherein the two bottom pieces do not contact one another.

31. The golf club head of claim 27, wherein the front piece has a cup-face structure and comprises the face and at least one wall extending rearwardly from a periphery of the face, and the back piece is formed separately from the front piece and is connected to the front piece by the at least one wall.

32. A golf club comprising:

a golf club head according to claim 27; and

a shaft connected to the golf club head.

33. A ball striking device comprising:

a structural frame formed of a first material, the frame comprising;

a face configured for striking a ball, the face being formed by a cup face structure including the face and at least one wall extending rearward from a periphery of the face; and

a band connected to the at least one wall of the cup face structure and extending around a rear periphery of the frame, wherein the band and the at least one wall cooperate to define a first opening on a top side of the band and the band defines a second opening on the bottom side of the band, the first opening being separate from the second opening, and wherein the band includes ridges extending around the first and second openings and located on an inner surface of the band;

a first non-structural piece formed of a second material and positioned to cover the first opening, wherein the first non-structural piece is larger than the first opening, such that a portion of the first non-structural piece engages the inner surface of the band and an inner surface of the at least one wall around the first opening and further engages the ridge extending around the first opening to secure the first non-structural piece in place; and

a second non-structural piece formed of the second material and positioned to cover the second opening, wherein the second non-structural piece is larger than the second opening, such that a portion of the second non-structural piece engages the inner surface of the band around the second opening and further engages the ridge extending around the second opening to secure the second non-structural piece in place.