Weighted iron set

• US 10,188,917 B2
• Filed: 08/04/2017
• Issued: 01/29/2019
• Est. Priority Date: 02/19/2015
• Status: Active Grant

• Current Assignee: Acushnet Company (FILA Holdings Corp.)
• Original Assignee: Acushnet Company (FILA Holdings Corp.)
• Inventors: Ritchie, Ryan J. A., Ines, Marni, Hebreo, Jonathan, Franz, Michael E.
• Primary Examiner(s): Blau, Stephen
• Application Number:
  US15/669,649
• Publication Number:
  US 20170348569A1
• Time in Patent Office: 543 Days
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/005 Club sets
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/047 iron-type

Abstract

The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The invention contemplates the use of titanium or steel for the main body portion and significant tungsten weight members coupled to at least the toe via a mechanical fastener inserted through the face.

Claims

1. A set of golf clubs comprising at least a first club head having a loft between about 15 and 25 degrees, a second club head having a loft of between about 26 and 35 degrees, and a third club head having a loft of about 36 degrees or greater, wherein:

the first, second and third club heads each comprise a heel, a toe, a topline, a sole, a hosel and a front face having a face center, each club head having a club head mass that is different than the previous club head by at least 5 grams, and wherein at least the first club head includes a back wall having an aperture and a weight member formed of tungsten and coupled to a toe portion of the back wall that comprises 15%-25% of the club head mass, wherein a mechanical fastener is inserted through the aperture from a face side of the club and extends through the aperture in the back wall to couple the weight member to the toe portion and a face member is welded to a face retaining surface forward of the mechanical fastener.

2. The set of golf clubs of claim 1, wherein the weight member is coupled to the toe portion such that it forms a portion of a back surface, a toe surface and a sole surface of the first club head.

3. The set of golf clubs of claim 2, wherein the first club head includes an indentation that forms a wall surrounding a portion of the weight member.

4. The set of golf clubs of claim 3, wherein the wall forms an angle between about 10 degrees and 60 degrees such that the weight member is press fit against the wall when the mechanical fastener is secured.

5. The set of golf clubs of claim 4, wherein the first club includes a bottom surface and an adhesive tape is juxtaposed the bottom surface and the weight member.

6. The set of golf clubs of claim 2, wherein the club head and the weight member form a paint fill edge that surrounds the weight member perimeter.

7. A set of golf clubs comprising at least a first club head having a loft between about 15 and 25 degrees, a second club head having a loft of between about 26 and 35 degrees, and a third club head having a loft of about 36 degrees or greater;

wherein the first, second and third club heads each comprise a solid volume, a heel, a toe, a topline, a sole, a hosel and a front face having a face center;

wherein the first club head has a first overall club head mass and is comprised of a first steel body member and a first steel face insert that together comprise less than 75 percent of the first overall club head mass and said first club head is further comprised of a first toe weight member formed of tungsten, wherein the first toe weight member comprises between 15% and 25% of the first overall club head mass and is coupled to the first steel body member by a first mechanical fastener that is inserted through a face side of the first steel body member and extends through an aperture in a back wall of the first steel body member to couple the first toe weight member to the first steel body member such that the first toe weight member forms a portion of a sole surface, a toe surface and a back surface of the first club head and the first steel face insert is welded to a first face retaining surface on the first steel body member in front of the first mechanical fastener; and

wherein the second club head has a second overall club head mass and is comprised of a second steel body member and a second steel face insert that together comprise less than 75 percent of the second overall club head mass and said second club head is further comprised of a second toe weight member formed of tungsten, wherein the second toe weight member comprises between 15% and 25% of the second overall club head mass and is coupled to the second steel body member by a second mechanical fastener that is inserted through a face side of the second steel body member and extends through an aperture in a back wall of the second steel body member to couple the second toe weight member to the second steel body member such that the second toe weight member forms a portion of a sole surface, a toe surface and a back surface of the second club head and the second steel face insert is welded to a second face retaining surface on the second steel body member in front of the second mechanical fastener.