Golf club head with elevated internal weight

Patent metadata

Field	Value
Publication number	US-10245477-B2
Application number	US-201816139978-A
Country	US
Kind code	B2
Filing date	Sep 24, 2018
Priority date	Apr 19, 2012
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

A golf club head having elevated internal weighting that improves ball speed, reduces backspin, and increases launch angle is disclosed herein. In particular, the golf club head comprises a hollow body with a face, sole, and elevated weight bar, which is disposed inside the body and is fixed to heel and toe sides of the body, preferably with mechanical fasteners such as screws or bolts. The weight bar bridges a central portion of the sole, and a central section of the weight bar, which preferably comprises at least 50% of the overall mass of the weight bar, extends towards the face without actually making contact with the face. The sole also includes at least one slot extending perpendicular to the face and underneath the central section of the weight bar, the slot having a front-to-back length that is greater than a maximum front-to-back length of the weight bar.

First claim

We claim:

1. A golf club head comprising:
a body comprising a sole, a hosel, a heel side, a toe side, a face, and a hollow interior; and
a weight bar comprising a first end, a second end, a heel support section proximate the first end, a toe support section proximate the second end, and a central section between the heel support section and the toe support section,
wherein the face comprises an interior surface facing the hollow interior and an exterior striking surface,
wherein the weight bar is disposed within the hollow interior,
wherein the first end of the weight bar is affixed to the heel side and the second end of the weight bar is affixed to the toe side,
wherein the central section of the weight bar bridges at least a portion of the sole and extends towards the interior surface of the face without making contact with any portion of the face, and
wherein the sole comprises at least one slot at least partially disposed beneath the weight bar.

2. The golf club head of claim 1 , wherein the first end of the weight bar is connected to the heel side with a first mechanical fastener, and wherein the second end of the weight bar is connected to the toe side with a second mechanical fastener.

3. The golf club head of claim 2 , wherein the heel side comprises a first through-bore, wherein the toe side comprises a second through-bore, wherein the first end of the weight bar comprises a third through-bore, wherein the second end of the weight bar comprises a fourth through-bore, wherein the first mechanical fastener extends through the first through-bore and into the third through-bore to affix the first end of the weight bar to the body, and wherein the second mechanical fastener extends through the second through-bore and into the fourth through-bore to affix the second end of the weight bar to the body.

4. The golf club head of claim 1 , wherein the first end of the weight bar is connected to the heel side with brazing material, and wherein the second end of the weight bar is connected to the toe side with brazing material.

5. The golf club head of claim 1 , wherein the at least one slot comprises a first slot and a second slot, wherein the first slot is disposed on a heel side of the sole proximate the hosel and the first end of the weight bar, and wherein the second slot is disposed on a toe side of the sole proximate the second end of the weight bar.

6. The golf club head of claim 1 , wherein the weight bar has a width measured along a horizontal y-axis extending parallel with the face, wherein each of the heel support section and toe support section comprises no more than 25% of the width, wherein the central section comprises at least 50% of the width, wherein the weight bar has a mass, and wherein the central section comprises at least 50% of the mass of the weight bar.

7. The golf club head of claim 6 , wherein the central section comprises at least 60% of the mass of the weight bar.

8. The golf club head of claim 1 , wherein the sole comprises at least one circular opening, wherein the at least one slot intersects the at least one circular opening, and wherein the at least one slot and the at least one circular opening are in communication with the hollow interior.

9. The golf club head of claim 8 , wherein the at least one circular opening is located at a first end of the at least one slot, and wherein the first end of the slot is located proximate the striking face.

10. The golf club head of claim 8 , wherein the at least one circular opening comprises first and second circular openings, wherein the first circular end is located at a first end of the at least one slot, and wherein the second circular opening is located at a second end of the at least one slot.

11. The golf club head of claim 8 , wherein the at least one slot is at least partially filled with a polymeric material.

12. The golf club head of claim 1 , wherein the golf club head is selected from the group consisting of a fairway-type head, a driver-type head, a hybrid-type head, and an iron-type head.

13. The golf club head of claim 1 , wherein the body is composed of a first material having a first density, wherein the weight bar is composed of a second material having a second density, and wherein the first density is lower than the second density.

14. The golf club head of claim 13 , further comprising a composite crown, wherein the body comprises an upper opening, and wherein the composite crown is sized to cover the upper opening.

15. A hybrid-type golf club head comprising:
a body comprising a sole, a hosel, a heel side, a toe side, a rear side, a face portion, a return portion extending away from the face portion towards the rear side, and a hollow interior; and
a weight bar comprising a first end, a second end, a heel support section proximate the first end, a toe support section proximate the second end, a central section between the heel support section and the toe support section, and an overall mass;
wherein the face portion comprises an interior surface facing the hollow interior and an exterior striking surface,
wherein the weight bar is disposed within the hollow interior proximate the interior surface of the face,
wherein the first end of the weight bar is connected to the heel side with a brazing material, and wherein the second end of the weight bar is connected to the toe side with a brazing material,
wherein the central section bridges at least a central portion of the sole and extends towards the interior surface of the face without making contact with any portion of the face,
wherein the central section comprises at least 50% of the overall mass,
wherein the sole comprises at least one slot,
wherein the body is composed of a first material having a first density,
wherein the weight bar is composed of a second material having a second density, and
wherein the first density is lower than the second density.

16. The hybrid-type golf club head of claim 15 , further comprising a crown, wherein the sole and the return portion define an upper opening in the body, wherein the upper opening is encircled by a bond flange, wherein the crown is permanently affixed to the bond flange with an adhesive material to close the upper opening, wherein the crown is composed of a material having a third density, and wherein the third density is lower than the first density.

17. The hybrid-type golf club head of claim 15 , wherein the central section comprises more than 60% of the overall mass.

18. The hybrid-type golf club head of claim 17 , wherein the weight bar has a width measured along a horizontal y-axis extending parallel with the face portion, wherein each of the heel support section and toe support section comprises no more than 25% of the width, wherein the central section comprises at least 50% of the width.

19. The hybrid-type golf club head of claim 17 , wherein the central section of the weight bar has a first front-to-rear length designated as L 1 , wherein the heel support section has a second front-to-rear length designated as L 2 , wherein the toe support section has a third front-to-rear length designated as L 3 , and wherein L 1 ≥2×L 2 and L 1 ≥2×L 3 .

20. A hybrid-type wood golf club head comprising:
a metal alloy body comprising a sole, a hosel, a heel side, a toe side, a rear side, a face, an upper opening, and a hollow interior;
a weight bar comprising a first end, a second end, a heel support section proximate the first end, a toe support section proximate the second end, a central section between the heel

Assignees

• Callaway Golf Co

Inventors

• Demille Brandon D
• Rice Bradley C
• Watson William C
• Ivanova Irina
• Erickson Joel B

Classifications

• A63B53/0475

  with one or more enclosed cavities · CPC title

• A63B60/42

  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 · CPC title

• A63B53/0466

  wood-type · CPC title

• A63B60/52

  with slits · CPC title

• A63B53/04 Primary

  Heads · CPC title