Support structures for golf club heads and methods of manufacturing improved support structures

Patent metadata

Field	Value
Publication number	US-11628339-B1
Application number	US-202217977255-A
Country	US
Kind code	B1
Filing date	Oct 31, 2022
Priority date	Dec 13, 2018
Publication date	Apr 18, 2023
Grant date	Apr 18, 2023

Abstract

A golf club head, preferably a putter head, comprising at least one structural support member is disclosed herein. The structural support member has a smooth, organic-looking aesthetic, with a continuously changing curvature along its spline and at least one surface, and preferably connects one portion of the golf club head to another portion. Where the support member connects to other portions of the golf club head, the surfaces of the member have a curvature that changes smoothly and continuously, lacking any sharp corners. The support member may be part of a lattice structure formed via binder jetting.

First claim

We claim as our invention the following:

1. A method for manufacturing a component for a golf club head, the method comprising:
forming a green part for the component of the golf club head by depositing liquid binder on a plurality of layers of a powdered material spread across a binder jet machine to bond adjacent particles of the powdered material together; and
sintering the green part to create a final part for the component, wherein the final part comprises at least one support member comprising an equivalent diameter and a spline;
wherein the equivalent diameter D E of a cross section taken at any point along the spline is calculated using a formula D E =(4*A/pi){circumflex over ( )}(½), wherein A is an area of a cross-section of the support member;
wherein the equivalent diameter is greater than 0.010 inch and less than 1.000 inch and changes continuously along a length of the spline.

2. The method according to claim 1 , wherein the length is greater than an average equivalent diameter, wherein the spline is curved and the length is at least three times a value of the equivalent diameter, and wherein the cross-sectional shape changes continuously along the length of the spline.

3. The method according to claim 1 , wherein the at least one support member extends at an angle from a sole portion, and wherein the angle is less than 75°.

4. The method according to claim 1 , wherein the at least one support member does not comprise any sharp corners or simple fillets with constant surface structure.

5. The method according to claim 1 , wherein the final part comprises at least six support members, and wherein each of the support members extends at an angle with respect to a sole portion.

6. The method according to claim 2 , wherein the equivalent diameter is no less than 0.025 inch and no more than 0.500 inch at any point taken along a length of the support member.

7. The method according to claim 2 , wherein the equivalent diameter is no less than 0.050 inch and no more than 0.250 inch at any point taken along a length of the support member.

8. A method for manufacturing a component for a golf club head, the method comprising:
forming a green part for the component of the golf club head by depositing liquid binder on a plurality of layers of a powdered material spread across a binder jet machine to bond adjacent particles of the powdered material together; and
sintering the green part to create a final part for the component, wherein the final part comprises a plurality of support members, each support member comprising an equivalent diameter and a spline;
wherein the equivalent diameter D E of a cross section taken at any point along the spline is calculated using a formula D E =(4*A/pi){circumflex over ( )}(½), wherein A is an area of a cross-section of the support member;
wherein the equivalent diameter is greater than 0.010 inch and less than 1.000 inch and changes continuously along a length of the spline.

9. A method for manufacturing a golf club head, the method comprising:
forming a green part for the golf club head by depositing liquid binder on a plurality of layers of a powdered material spread across a binder jet machine to bond adjacent particles of the powdered material together; and
sintering the green part to create a final part for the golf club head, wherein the final part comprises a plurality of support members, each support member comprising an equivalent diameter and a spline;
wherein the equivalent diameter D E of a cross section taken at any point along the spline is calculated using a formula D E =(4*A/pi){circumflex over ( )}(½), wherein A is an area of a cross-section of the support member;
wherein the equivalent diameter is greater than 0.010 inch and less than 1.000 inch and changes continuously along a length of the spline.

Assignees

• Topgolf Callaway Brands Corp

Inventors

• Demille Brandon D
• Watson William C
• Stubben Eric
• Handy David R
• Ivanova Irina
• Dawson Patrick

Classifications

• A63B53/0408

  characterised by specific dimensions, e.g. thickness · CPC title

• B22F10/80

  Data acquisition or data processing · CPC title

• A63B53/0487 Primary

  for putters (A63B53/065 takes precedence) · CPC title

• B22F2998/10

  Processes characterised by the sequence of their steps · CPC title

• Y02P10/25

  Process efficiency · CPC title