Golf club head with adjustable center of gravity

• US 9,216,332 B1
• Filed: 02/14/2014
• Issued: 12/22/2015
• Est. Priority Date: 06/08/2012
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: Ehlers, Steven M., Holt, Denver, Seluga, James A., Kim, Wee Joung, Manwaring, Scott R.
• Primary Examiner(s): BLAU, STEPHEN LUTHER
• Application Number:
  US14/180,795
• Time in Patent Office: 676 Days
• US Class Current: 1/1
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/02 with reinforcing fibres, e.g. carbon, polyamide fibres
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/06 adjustable

Abstract

A golf club head comprising a plurality of center of gravity adjustment assemblies and a flat panel that attenuates sound and, in certain embodiments, connects the center of gravity adjustment assemblies, is disclosed herein.

Claims

1. A golf club head comprising:

a metal face component;

a body comprising a composite crown, a metal sole, a heel side, a toe side, a hollow interior, and a rear side;

a first center of gravity adjustment assembly disposed proximate the heel side;

a second center of gravity adjustment assembly disposed proximate the toe side; and

a flat panel,

wherein each of the first and second center of gravity adjustment assemblies is disposed within the hollow interior and extends from the sole to the crown,

wherein at least one of the first and second center of gravity adjustment assemblies comprises a tube and a cartridge sized to fit within the tube,

wherein the cartridge comprises a length L, a mass M_T, a polymer material, and a slug having a specific gravity that is greater than the specific gravity of the polymer material,

wherein changing the orientation of the cartridge within the tube changes the location of the golf club head'"'"'s center of gravity along a vertical Z axis,

wherein the golf club head has a mass M,

wherein the distance from the midpoint of the length L to a center of gravity of the cartridge when the cartridge is disposed within the tube such that the slug is closer to the sole is defined as ½

D,

wherein the golf club head satisfies the equation D≧

0.065(1+M/M_T),

wherein D is the total center of gravity distance change for the cartridge when its orientation is changed within the tube by being flipped, and

wherein the flat panel is disposed within the hollow interior, extends from the sole to the crown, and connects the first and second center of gravity adjustment assemblies to each other.

2. The golf club head of claim 1, wherein the flat panel extends parallel to the face.

3. The golf club head of claim 1, wherein the flat panel comprises at least one hole.

4. The golf club head of claim 1, wherein the flat panel comprises a mesh material.

5. The golf club head of claim 1, wherein the flat panel is composed of a lightweight material.

6. The golf club head of claim 5, wherein the material is selected from the group consisting of composite, plastic, and a lightweight metal alloy.

7. The golf club head of claim 1, further comprising a slidable weight assembly comprising a pair of parallel rails, wherein the slidable weight assembly is disposed on the sole and extends perpendicular to the face towards the rear side, and wherein the slidable weight assembly does not make contact with the face.

8. The golf club head of claim 7, further comprising at least one slidable weight sized to fit over the pair of parallel rails.

9. The golf club head of claim 7, wherein a first distance represents the distance between the face and a forward-most edge of the flat panel, wherein a second distance represents the distance between the face and a forward-most edge of the slidable weight assembly, and wherein the first distance is greater than or equal to the second distance.

10. The golf club head of claim 9, wherein the first distance is greater than the second distance.

11. The golf club head of claim 7, wherein the sole comprises a shallow channel, and wherein the slidable weight assembly is disposed within the shallow channel.

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

13. The golf club head of claim 12, wherein the golf club head is a wood-type head.

14. The golf club head of claim 13, wherein the golf club head is a driver-type head.