Golf club with faceplate of titanium or other high strength, lightweight metal materials

• US 5,407,202 A
• Filed: 11/03/1992
• Issued: 04/18/1995
• Est. Priority Date: 11/03/1992
• Status: Expired due to Fees

• Current Assignee: Lawrence Y. Igarashi
• Original Assignee: Lawrence Y. Igarashi
• Inventors: Igarashi, Lawrence Y.
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US07/970,708
• Time in Patent Office: 896 Days
• Field of Search: 273/77 R, 273/77 A, 273/164.1, 273/167 R, 273/167 A, 273/167 E, 273/167 F, 273/167 G, 273/167 H, 273/167 J, 273/167 K, 273/170, 273/171, 273/172 , 273/173, 273/174, 273/175, 273/169, 273/193 R, 273/194 R
• US Class Current: 473/342
• 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 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0454 Strengthening ribs on the rear surface of the impact face plate
• CPC Class Codes: A63B 53/0458 with non-uniform thickness of the impact face plate
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/52 with slits

Abstract

A golf club having a metal club head with a faceplate insert made of a high strength, lightweight metal material such as titanium. The weight savings resulting from the lighter, stronger titanium permits mass to be distributed to improve the moment of inertia of the club head. Both iron and metal wood clubs having the titanium faceplate insert are described.

Claims

1. A golf metal wood club having a faceplate insert, comprising:

a hollow club head body fabricated of a first metal, said body defining a generally open faceplate receiving area to which a club head faceplate may be secured, said body characterized by a thin metal wall over which the body metal mass is distributed to achieve perimeter weighting of said body, said body including regions of increased weight at heel, toe and rear areas thereof;

a club head faceplate fabricated of a second metal material, said faceplate mounted to said club head body at said receiving area; and

means for securing said faceplate to said body at said receiving area without welding said faceplate to said body.

2. The golf club head of claim 1 wherein said receiving area comprises a recessed peripheral shoulder fabricated in the outline of said faceplate so that the periphery of said faceplate abuts against said shoulder when said faceplate is mounted to said body at said receiving area, said shoulder providing support for said faceplate against the face of impact of a golf ball when struck by said head.

3. The golf club head of claim 1 wherein said first metal is stainless steel.

4. The golf club head of claim 1 wherein said first metal is aluminum.

5. The golf club head of claim 1 wherein said second metal comprises titanium.

6. The golf club head of claim 5 wherein said second metal is a titanium alloy.

7. The golf club head of claim 1 wherein said second metal material comprises a ceramic alloy.

8. The golf club head of claim 1 wherein said second metal material comprises boron.

9. The golf club head of claim 1 wherein said club head body comprises a support strut extending across said receiving area, said faceplate abutting against said support strut when mounted to said club head body at said receiving area.

10. The golf club head of claim 9 wherein said strut extends generally vertically across said receiving area from the top to the bottom of said region.

11. The golf club head of claim 1 wherein said club head body comprises first and second spaced support struts extending across said receiving area, said faceplate abutting against said support struts when mounted to said club head body at said receiving area.

12. A golf iron having a faceplate insert, comprising:

a club head body fabricated of a first metal, said body defining a faceplate receiving area to which a club head faceplate may be secured, said body further including a reinforcing strut extending laterally behind said receiving area and extending from a club head heel area to a club head toe area;

a club head faceplate fabricated of a high strength second metal material characterized by a lower specific weight than said first metal, said faceplate mounted to said club head body at said receiving area; and

means for securing said faceplate to said body at said receiving area without welding said faceplate to said body.

13. The golf iron of claim 12 wherein said strut is centered on the nominal impact zone of the head with a golf ball, said strut including a curved rear surface so as to position mass behind said impact zone so as to position the center of gravity of said head body well behind said faceplate.

14. The golf iron of claim 12 wherein said first metal is stainless steel.

15. The golf iron of claim 12 wherein said second metal material comprises titanium.

16. The golf iron of claim 15 wherein said second metal is a titanium alloy.

17. The golf club head of claim 12 wherein said second metal material comprises a ceramic alloy.

18. The golf club head of claim 12 wherein said second metal material comprises boron.

19. The golf iron of claim 12 wherein said receiving area comprises a recessed peripheral shoulder fabricated in the outline of said faceplate so that the periphery of said faceplate abuts against said shoulder when said faceplate is mounted to said body at said receiving area, said shoulder providing support for said faceplate against the force of impact of a golf ball when struck by said head.

20. The golf iron of claim 12 wherein said securing means comprises a plurality of fastener members which extend from said faceplate into said peripheral shoulder.

21. The golf iron of claim 20 wherein said fastener members comprise threaded screw members.

22. The golf iron of claim 12 wherein said body receiving area comprises generally open areas above and below said strut, wherein the mass of said body is concentrated outside said receiving area.

23. The golf club head of claim 12 further comprising rear area weighting means for providing weight at a rear area of the club head behind a nominal ball impact point on said faceplate.

24. The golf club head of claim 12 further comprising heel and toe area weighting means for providing weight at toe and heel areas of said club head.

25. The golf club head of claim 24 further characterized in that use of said faceplate provides a faceplate weight savings over a faceplate constructed of said first metal, and wherein said rear, heel and toe weighting means redistribute said faceplate weight savings over said rear, heel and toe areas.

26. A golf club having a faceplate insert, comprising:

a club head body fabricated of a first metal, said body defining a faceplate receiving area to which a club head faceplate may be secured;

a club head faceplate fabricated of a high strength second metal characterized by a lower specific weight than said first metal, said faceplate mounted to said club head body at said receiving area;

means for securing said faceplate to said body at said receiving area without welding said faceplate to said body; and

wherein said club head body further comprises a support strut which extends across said receiving area, said faceplate abutting against said support strut when mounted to said club head body at said receiving area.

27. The golf club head of claim 26 wherein said strut extends laterally across said receiving region from one side of said region to the other.

28. The golf club head of claim 26 wherein said strut extends generally vertically across said receiving region from the top of said region to the bottom of said region.

29. A golf club having a faceplate insert, comprising:

a club head body fabricated of a first metal, said body defining a faceplate receiving area to which a club head faceplate may be secured;

a club head faceplate fabricated of a high strength second metal characterized by a lower specific weight than said first metal, said faceplate mounted to said club head body at said receiving area;

means for securing said faceplate to said body at said receiving area without welding said faceplate to said body; and

rear area weighting means for providing weight at a rear area of the club head behind a nominal ball impact point on said faceplate.

30. A golf club having a faceplate insert, comprising:

a club head body fabricated of a first metal, said body defining a faceplate receiving area to which a club head faceplate may be secured;

a club head faceplate fabricated of a high strength second metal characterized by a lower specific weight than said first metal, said faceplate mounted to said club head body at said receiving area;

means for securing said faceplate to said body at said receiving area without welding said faceplate to said body; and

heel and toe area weighting means for providing weight at toe and heel areas of said club head.

31. A golf club having a faceplate insert, comprising:

a club head body fabricated of a first metal, said body defining a faceplate receiving area to which a club head faceplate may be secured;

a club head faceplate fabricated of a high strength second metal characterized by a lower specific weight than said first metal, said faceplate mounted to said club head body at said receiving area, wherein said faceplate provides a faceplate weight savings over a faceplate constructed of said first metal;

means for securing said faceplate to said body at said receiving area without welding said faceplate to said body;

rear area weighting means for providing weight at a rear area of the club head behind a nominal ball impact point on said faceplate;

heel and toe area weighting means for providing weight at toe and heel areas of said club head; and

wherein said rear, heel and toe weighting means redistribute said faceplate weight savings over said rear, heel and toe areas.