Golf club

• US 5,413,337 A
• Filed: 05/27/1994
• Issued: 05/09/1995
• Est. Priority Date: 05/27/1994
• Status: Expired due to Fees

• Current Assignee: Phillip M. Goodman
• Original Assignee: Phillip Goodman
• Inventors: Loncar, Stanley M., Goodman, Phillip M.
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US08/250,570
• Time in Patent Office: 347 Days
• Field of Search: 273/79
• US Class Current: 473/247
• CPC Class Codes: A63B 53/026 loft angle only, i.e. relative angular adjustment between the shaft and the club head about a horizontal axis perpendicular to the intended line of play when the club is in its normal address position
• CPC Class Codes: A63B 53/047 iron-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

Abstract

A golf club has a normal address position when the user addresses a ball, and includes a shaft, a hosel mounted on the lower end of the shaft and a golf club head mounted on the hosel for pivotal movement about an axis which is generally horizontal when the club is in the address position. An eccentric cam member is mounted on the hosel for rotation between first, second and third angular positions, and a recess is formed in the head and adjacent the cam member and a lever is operative to move the club head toward and away from the hosel wherein said cam member is movable into and out of the recess, the rotary portion of the cam member in the first and third positions causing said head to pivot into loft angles above and below a nominal loft angle when the cam member is in its second position between first, second and third loft angles as the adjustment sleeve is moved between its first, second and third positions.

Claims

1. A golf club having a normal address position when the user addresses the ball, said golf club including a shaft, a club head mounted on the lower end of the shaft and including a hosel, a heel portion and a blade portion, said hosel being integrally formed with said heel portion and being mounted on said shaft, said blade portion being mounted on said heel portion for limited pivotal movement about an axis which is generally horizontal when the club is in the address position, first coupling means on said heel portion, second coupling means on said blade portion and engageable with said first coddling means for rigidly coupling said blade portion to said heel portion, translating means coupled to said blade portion and to said heel portion for moving said blade portion into and out of engagement with said heel portion for engaging and disengaging said first and second coupling means, and adjustment means for selectively positioning said first coupling means in at least first and second positions so that said blade portion will pivot into one of first and second loft angles upon movement into engagement with said heel portion.

2. The golf club set forth in claim 1 wherein said first coupling means comprises a member mounted on said heel portion for rotation eccentrically about an axis generally parallel to the pivotal axis of said blade portion, whereby rotation of the member through predetermined angles will alternately position said member and its first or second positions.

3. The golf club set forth in claim 2 wherein said coupling means includes a recess formed on said blade portion and complimentary to said member for engaging said member upon movement of said blade portion into engagement with said heel portion.

4. The golf club set forth in claim 3 wherein said member is rectangular in cross-section and includes beveled surfaces for guiding said recess onto said member as said blade portion is displaced toward said heel portion.

5. The golf club set forth in claim 4 wherein said member has an intermediate position and is rotatable through a first angle to define a first position and through a second angle to define a second position, the engagement of said recess with said member in said first or second positions providing loft angles which are about three degrees smaller or larger than the loft angle when said member is in its intermediate position.

6. The golf club set forth in claim 4 wherein said member has an intermediate position and is rotatable through a first angle to define a first position and through a second angle to define a second position, the engagement of said recess with said member in said first or second positions providing loft angles which are about three degrees smaller or larger than the loft angle when said member is in its intermediate position.

7. The golf club set forth in claim 6 wherein said translating means comprises overcenter linkage means having a first mode wherein said blade is displaced from said heel portion and a second mode wherein said blade portion is in engagement with said heel portion, and biasing means for retaining said linkage means in its second mode.

8. The golf club set forth in claim 3 wherein said member is rectangular in cross-section and includes beveled surfaces for guiding said recess onto said member as said blade portion is displaced toward said heel portion.

9. The golf club set forth in claim 1 wherein said translating means comprises overcenter linkage means having a first mode wherein said blade is displaced from said heel portion and a second mode wherein said blade portion is in engagement with said heel portion, and biasing means for retaining said linkage means in its second mode.

10. The golf club set forth in claim 9 wherein said blade portion has front and rear surfaces, a groove formed in said rear surface, said linkage being positioned in said groove when in its second mode.

11. The golf club set forth in claim 10 wherein said first coupling means comprises a member mounted on said heel portion for rotation eccentrically about an axis generally parallel to the pivotal axis of said blade portion whereby rotation of the member through predetermined angles will alternately position said member and its first or second positions.

12. The golf club set forth in claim 11 wherein said coupling means includes a recess formed on said blade portion and complimentary to said member for engaging said member upon movement of said blade portion into engagement with said heel portion.

13. The golf club set forth in claim 12 wherein said member is rectangular in cross-section and includes beveled surfaces for guiding said recess onto said member as said blade portion is displaced toward said heel portion.

14. The golf club set forth in claim 13 wherein said member has an intermediate position and is rotatable through a first angle to define a first position and through a second angle to define a second position, the engagement of said recess with said member in said first or second positions providing loft angles which are about three degrees smaller or larger than the loft angle when said member is in its intermediate position.

15. The golf club set forth in claim 9 wherein said blade portion has front and rear surfaces, a groove formed in said rear surface, said linkage being positioned in said groove when in its second mode.

16. A golf club having a normal address position when the user addresses the ball, said golf club including a shaft, a club head mounted on the lower end of the shaft and including a hosel, a heel portion and a blade portion, said hosel being mounted on said heel portion and being secured to said shaft, said blade portion being mounted on said heel portion for limited pivotal movement about an axis which is generally horizontal when the club is in the address position, first coupling means on said heel portion, second coupling means on said blade portion and engageable with said first coupling means for rigidly coupling said blade portion to said heel portion, linkage means coupled to said blade portion and to said heel portion for moving said blade portion into and out of engagement with said heel portion for engaging and disengaging said first and second coupling means, and adjustment means for selectively positioning said first coupling means in at least first and second positions so that said blade portion will pivot between first and second loft angles upon movement into engagement with said heel portion.

17. The golf club set forth in claim 16 wherein said first coupling means comprises a member mounted on said heel portion for rotation eccentrically about an axis whereby rotation of the member through predetermined angles will alternately position said member in its first or second positions.

18. The golf club set forth in claim 17 wherein said coupling means includes a recess formed on said blade portion and complimentary to said member for engaging said member upon movement of said blade portion into engagement with said heel portion.