Iron-type golf club head

Patent metadata

Field	Value
Publication number	US-9381408-B2
Application number	US-201414579724-A
Country	US
Kind code	B2
Filing date	Dec 22, 2014
Priority date	Oct 29, 2012
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

The present invention discloses an iron-type golf club head having a body and at least one weight disc having a first diameter, the body having a sole with a first recess, which comprises a first bore having a second diameter, a second bore having a third diameter, and a shelf located between the first bore and the second bore, the first diameter is smaller than the second diameter and greater than the third diameter, the first bore is sized to receive the at least one weight disc, the at least one weight disc rests against the shelf, and the at least one weight disc is secured within the first bore. The sole may further comprise second, third, and fourth recesses, each of which may have a first bore, a second bore, and a shelf.

First claim

We claim as our invention the following:

1. An iron-type golf club head comprising:
a body comprising a top portion, a sole portion, and a face component, the sole portion defining a first recess with a first bore having a second diameter, a second bore having a third diameter, and a shelf located between the first bore and the second bore; and
a weight disc having a first diameter, the first diameter smaller than the second diameter and greater than the third diameter, the weight disc removably secured within the first bore and resting against the shelf,
wherein the weight disc is composed of a material having a density ranging from 14 g/cc to 18 g/cc,
wherein the body is composed of a material having a density of no less than 5 g/cc and no greater than 9 g/cc, and
wherein the second bore is empty.

2. The iron-type golf club head of claim 1 , wherein the face component is selected from the group consisting of a face plate and a face insert.

3. The iron-type golf club head of claim 1 , wherein the sole portion comprises a second recess, a third recess, and a fourth recess, and wherein each of the second, third, and fourth recesses comprises a first bore, a second bore, and a shelf.

4. The iron-type golf club head of claim 3 , wherein the iron-type golf club head comprises a toe side, a heel side, and a center line, and wherein at least three of the first, second, third, and fourth recesses are disposed between the center line and the heel side.

5. The iron-type golf club head of claim 3 , wherein the first recess has a first depth, the second recess has a second depth, the third recess has a third depth, and the fourth recess has a fourth depth, and wherein each of the first, second, third, and fourth depth differs from each of the other depths.

6. The iron-type golf club head of claim 3 , wherein the first and second recesses each have a first depth, wherein the third and fourth recesses each have a second depth, and wherein the first depth is less than the second depth.

7. The iron-type golf club head of claim 3 , wherein the at least one weight disc comprises a plurality of weight discs, each of which is sized to fit within the first bore of the first, second, third, and fourth recesses.

8. The iron-type golf club head of claim 3 , wherein each of the plurality of weight discs has a mass of no less than 0.50 g and no more than 1.0 g.

9. The iron-type golf club head of claim 1 , wherein the body is integrally formed using a method selected from the group consisting of casting, forming, and forging.

10. The iron-type golf club head of claim 1 , wherein the at least one weight disc is composed of a tungsten alloy.

11. The iron-type golf club head of claim 1 , further comprising a cap, wherein the cap is affixed within the first bore and presses the weight disc against the shelf.

12. An iron-type golf club head comprising:
a forged metal body comprising a top portion, a sole portion, and a face component, the sole portion defining a plurality of recesses, each of the plurality of recesses having a first bore having a second diameter, a second bore having a third diameter, and a shelf located between the first bore and the second bore;
a plurality of weight discs, each of the plurality of weight discs composed of a material having a density ranging from 14 g/cc to 18 g/cc, each of the plurality of weight discs having a first diameter, the first diameter smaller than the second diameter and greater than the third diameter, the weight disc positioned within the first bore and resting against the shelf of a corresponding recess of the plurality of recesses;
a welding material covering each of the plurality of weight discs.

13. The iron-type golf club head of claim 12 , further comprising a medallion, wherein the body comprises a rear cavity, and wherein the medallion is permanently affixed within the rear cavity.

14. The iron-type golf club head of claim 12 , wherein the plurality of tungsten alloy weight discs is composed of four tungsten alloy weight discs, and wherein the plurality of recesses is composed of four recesses.

Assignees

• Callaway Golf Co

Inventors

• Kuhar Justin
• Mehren Joseph
• Ivanova Irina
• Rice Bradley C
• Manwaring Scott R
• Demille Brandon D
• Dawson Patrick

Classifications

• A63B2053/0491

  with added weights, e.g. changeable, replaceable · CPC title

• A63B53/06 Primary

  adjustable · CPC title

• A63B53/047 Primary

  iron-type · CPC title

• A63B53/0475

  with one or more enclosed cavities · CPC title

• A63B60/00

  Details or accessories of golf clubs, bats, rackets or the like · CPC title