Temporary golf club shaft-component connection

• US 20040018887A1
• Filed: 07/17/2003
• Published: 01/29/2004
• Est. Priority Date: 07/24/2002
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation, BGI Acquisition, LLC (Lion Gate LLC)
• Original Assignee: Melvin Simon
• Inventors: Burrows, Bruce D.
• Granted Patent: US 6,890,269 B2
• Time in Patent Office: Days
• US Class Current: 473/307
• CPC Class Codes: A63B 2210/50 Size reducing arrangements for stowing or transport
• CPC Class Codes: A63B 53/02 Joint structures between the head and the shaft
• CPC Class Codes: A63B 53/10 Non-metallic shafts
• CPC Class Codes: A63B 53/14 Handles
• CPC Class Codes: A63B 60/22 Adjustable handles
• CPC Class Codes: A63B 60/42 Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand

Abstract

A temporary shaft-component connection for assembling a selected golf club shaft with a club head and/or hand grip segment, to facilitate custom club design and fitting to suit the needs and preferences of an individual golfer. The temporary shaft-component connection is particularly designed for use with nonmetallic club shafts formed from a graphite-based composite material or the like having a range of different lengths and stiffness (whip) characteristics. The temporary connection includes an adapter insert for slide-fit reception into an adapter socket, wherein the adapter insert and socket include interengaging flat surfaces such as splines to prevent relative rotation therebetween. The adapter insert is mechanically seated and secured relative to the adapter socket at a pair of axially spaced locations, with a resilient compressible anchor member disposed at one of these securement points for substantially eliminating undesired intercomponent movement.

Claims

1. A temporary connection for connecting a golf club shaft with an additional club component, said temporary connection comprising:

an elongated adapter insert defining a thrust flange;

an adapter socket having a size and shape for slide-fit reception of said adapter insert, said adapter socket defining a thrust seat for substantially seated reception of said thrust flange when said adapter insert is slidably received into said adapter socket, said adapter insert and socket further including interengageable surfaces for substantially preventing relative rotation therebetween when said adapter insert is slidably received into said adapter socket;

first connection means for removably interconnecting said adapter insert and socket with said thrust flange seated upon said thrust seat; and

second connection means including a resilient anchor member interposed between said adapter insert and socket at a position spaced axially from said thrust flange and said thrust seat, said anchor member being at least partially compressed when said thrust flange is seated upon said thrust seat for substantially constraining said adapter insert and socket against relative movement.

2. The temporary connection of claim 1 wherein the additional club component comprises a golf club head having a hosel, one of said adapter insert and said adapter socket being on said hosel, and the other of said adapter insert and said adapter socket being on said club shaft.

3. The temporary connection of claim 2 wherein said adapter socket is on said hosel, and said adapter insert is on said club shaft.

4. The temporary connection of claim 1 wherein the additional component comprises a golf club hand grip segment, one of said adapter insert and said adapter socket being on said club shaft, and the other of said adapter insert and said adapter socket being on said hand grip segment.

5. The temporary connection of claim 4 wherein said adapter insert is on said club shaft, and said adapter socket is on said hand grip segment.

6. The temporary connection of claim 1 wherein said interengageable surfaces comprise an external spline segment on said adapter insert, and an internal spline segment within said adapter socket.

7. The temporary connection of claim 1 wherein said first connection means comprises a compression nut carried by one of said adapter insert and socket and defining an internal thread and an internal thrust shoulder, and an external thread formed on the other of said adapter insert and socket, said compression nut being threadably engageable with said external thread for urging said thrust shoulder against one of said thrust flange and thrust seat for axially displacing said thrust flange into seated engagement upon said thrust seat.

8. The temporary connection of claim 7 wherein said compression nut is carried by said adapter insert, and said external thread is formed on said adapter socket.

9. The temporary connection of claim 7 further including a backstop reaction member on said one of said adapter insert and socket, said backstop reaction member being engageable by said compression nut upon unthreading thereof from said external thread for axially separating said adapter insert from said adapter socket.

10. The temporary connection of claim 1 wherein said first connection means comprises a lock pin removably fastened through said adapter insert and socket when said thrust flange is seated upon said thrust seat.

11. The temporary connection of claim 1 wherein said first connection means comprises a snap ring removably mounted onto said adapter insert and socket when said thrust flange is seated upon said thrust seat.

12. The temporary connection of claim 1 wherein said first connection means comprises a quick-connect-disconnect assembly for locking said adapter insert and socket against relative axial displacement when said thrust flange is seated upon said thrust seat.

13. The temporary connection of claim 1 wherein said first connection means comprises a lock bolt threadably connected to said adapter insert for drawing and retaining said thrust flange in seated engagement upon said thrust seat.

14. The temporary connection of claim 1 wherein said anchor member substantially constrains said adapter insert against axial displacement relative to said adapter socket.

15. The temporary connection of claim 1 wherein said anchor member substantially constrains said adapter insert against rotational displacement relative to said adapter socket.

16. The temporary connection of claim 1 wherein said anchor member substantially constrains said adapter insert against axial and rotational displacement relative to said adapter socket.

17. The temporary connection of claim 1 wherein said anchor member comprises a generally cylindrical bushing seated within a base end of said adapter socket, and wherein said adapter insert includes a nose end defining a tip for press-fit reception into said bushing and a bearing shoulder for axially bearing against said bushing, when said thrust flange is seated upon said thrust seat.

18. The temporary connection of claim 1 wherein said anchor member is axially spaced from said thrust flange and said thrust seat by at least about 1 to 2 inches, when said thrust flange is seated upon said thrust seat.

19. The temporary connection of claim 1 further including a reinforcement plug carried within said adapter insert.

20. A temporary connection for connecting a golf club shaft with an additional club component, said temporary connection comprising:

an elongated adapter insert defining a thrust flange;

an adapter socket having a size and shape for slide-fit reception of said adapter insert, said adapter socket defining a thrust seat for substantially seated reception of said thrust flange when said adapter insert is slidably received into said adapter socket, said adapter insert and socket further including interengageable surfaces for substantially preventing relative rotation therebetween when said adapter insert is slidably received into said adapter socket;

first connection means for removably interconnecting said adapter insert and socket with said thrust flange seated upon said thrust seat, said first connection means including a compression nut carried by one of said adapter insert and socket and defining an internal thread and an internal thrust shoulder, and an external thread formed on the other of said adapter insert and socket, said compression nut being threadably engageable with said external thread for urging said thrust shoulder against one of said thrust flange and thrust seat for axially displacing said thrust flange into seated engagement upon said thrust seat; and

second connection means including a resilient anchor member seated within a base end of said adapter socket and interposed between said adapter insert and socket at a position spaced axially from said thrust flange and said thrust seat, said anchor member being at least partially compressed when said thrust flange is seated upon said thrust seat for substantially constraining said adapter insert and socket against relative movement.

21. A golf club, comprising:

an elongated golf club shaft having a lower end;

an elongated adapter insert carried by said club shaft at said club shaft lower end;

a thrust flange carried by said club shaft at a position generally adjacent to said club shaft lower end;

a club head having a hosel;

an adapter socket carried by said hosel and having a size and shape for slide-fit reception of said adapter insert, said adapter socket defining a thrust seat for substantially seated reception of said thrust flange when said adapter insert is slidably received into said adapter socket, said adapter insert and socket further including interengageable surfaces for substantially preventing relative rotation therebetween when said adapter insert is slidably received into said adapter socket;

first connection means for removably interconnecting said adapter insert and socket with said thrust flange retained in axially seated relation upon said thrust seat; and

second connection means including a resilient anchor member interposed between said adapter insert and socket at a position spaced axially from said thrust flange and said thrust seat, said anchor member being at least partially compressed when said thrust flange is seated upon said thrust seat for substantially constraining said adapter insert and socket against relative movement.

22. The golf club of claim 21 wherein said interengageable surfaces comprise an external spline segment on said adapter insert, and an internal spline segment within said adapter socket.

23. The golf club of claim 21 wherein said first connection means comprises a compression nut carried by one of said adapter insert and socket and defining an internal thread and an internal thrust shoulder, and an external thread formed on the other of said adapter insert and socket, said compression nut being threadably engageable with said external thread for urging said thrust shoulder against one of said thrust flange and thrust seat for axially displacing said thrust flange into seated engagement upon said thrust seat.

24. The golf club of claim 23 wherein said compression nut is carried by said adapter insert, and said external thread is formed on said adapter socket.

25. The golf club of claim 23 further including a backstop reaction member on said one of said adapter insert and socket, said backstop reaction member being engageable by said compression nut upon unthreading thereof from said external thread for axially separating said adapter insert from said adapter socket.

26. The golf club of claim 21 wherein said anchor member substantially constrains said adapter insert against axial and rotational displacement relative to said adapter socket.

27. A golf club, comprising:

an elongated golf club shaft having an upper end;

an elongated adapter insert carried by said club shaft at said club shaft upper end;

a thrust flange carried by said club shaft at a position generally adjacent to said club shaft upper end;

a hand grip segment;

an adapter socket carried by said hand grip segment and having a size and shape for slide-fit reception of said adapter insert, said adapter socket defining a thrust seat for substantially seated reception of said thrust flange when said adapter insert is slidably received into said adapter socket, said adapter insert and socket further including interengageable surfaces for substantially preventing relative rotation therebetween when said adapter insert is slidably received into said adapter socket;

first connection means for removably interconnecting said adapter insert and socket with said thrust flange retained in axially seated relation upon said thrust seat; and

second connection means including a resilient anchor member interposed between said adapter insert and socket at a position spaced axially from said thrust flange and said thrust seat, said anchor member being at least partially compressed when said thrust flange is seated upon said thrust seat for substantially constraining said adapter insert and socket against relative movement.

28. The golf club of claim 27 wherein said first connection means comprises a compression nut carried by one of said adapter insert and socket and defining an internal thread and an internal thrust shoulder, and an external thread formed on the other of said adapter insert and socket, said compression nut being threadably engageable with said external thread for urging said thrust shoulder against one of said thrust flange and thrust seat for axially displacing said thrust flange into seated engagement upon said thrust seat.

29. The golf club of claim 28 wherein said compression nut is carried by said adapter insert, and said external thread is formed on said adapter socket.