Set of golf clubs

Patent metadata

Field	Value
Publication number	US-9555296-B2
Application number	US-201414306194-A
Country	US
Kind code	B2
Filing date	Jun 16, 2014
Priority date	Sep 13, 2007
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A set of golf clubs including golf club heads having improved mass distribution characteristics. The set includes golf club heads having a club head main body including a hitting face and a face support, a muscle back shell and a weight insert.

First claim

We claim:

1. A set of iron-type golf clubs, comprising:
a golf club including a golf club head, a grip and a shaft interposed between, and coupled to, the golf club head and the grip,
wherein the golf club head comprises a main body, a muscle back shell, and a plurality of weight inserts, including at least a heel weight and a toe weight, wherein the main body and the muscle back shell combine to define a lower cavity and the heel weight and the toe weight are disposed in the lower cavity,
wherein the golf club head is constructed so that a ratio of a moment of inertia about a vertical axis extending through the center of gravity of the golf club head and a moment of inertia about a longitudinal axis of the shaft is less than 2.25,
wherein the golf club has a loft less than about 28°, and
wherein the golf club has a blade length that is less than about 80 mm.

2. The set of golf clubs of claim 1 , wherein the golf club head has a moment of inertia about a vertical axis extending through the center of gravity that is greater than 215 kgmm 2 .

3. The set of golf clubs of claim 1 , wherein the main body includes a face support and a partial sole and the muscle back shell is coupled to the face support and the partial sole.

4. The set of golf clubs of claim 3 , wherein the muscle back shell comprises a sole flange and a back flange, and the sole flange and the partial sole of the main body form a bounce surface of the golf club head.

5. The set of golf clubs of claim 4 , wherein the sole flange of the muscle back shell forms a majority of the bounce surface of the golf club head.

6. The set of golf clubs of claim 1 , wherein the golf club head further comprises a hosel weight disposed in a hosel portion of the main body.

7. The set of golf clubs of claim 1 , wherein the heel weight and the toe weight are coupled to the muscle back shell.

8. The set of golf clubs of claim 7 , wherein the heel weight and the toe weight are coupled to a rear surface of a face portion of the main body.

9. The set of golf clubs of claim 1 , wherein the moment of inertia about the longitudinal axis of the shaft of the golf club head is less than 535 kgmm 2 .

10. The set of golf clubs of claim 1 , wherein a ratio of the moment of inertia about a vertical axis extending through the center of gravity of the golf club head and the moment of inertia about the longitudinal axis of the shaft of the golf club head is less than about 2.20.

11. The set of golf clubs of claim 1 , wherein a ratio of the moment of inertia about a vertical axis extending through the center of gravity of the golf club head and the moment of inertia about the longitudinal axis of the shaft of the golf club head is less than about 2.15.

12. A set of iron-type golf clubs, comprising:
a golf club including a golf club head, a grip and a shaft interposed between, and coupled to, the golf club head and the grip,
wherein the golf club head comprises a main body, a muscle back shell, and a weight insert, wherein the main body and the muscle back shell combine to define a lower cavity and the weight insert is disposed in the lower cavity,
wherein the golf club head is constructed so that a ratio of a moment of inertia about a vertical axis extending through the center of gravity of the golf club head and a moment of inertia about a longitudinal axis of the shaft is less than 2.25,
wherein the golf club has a loft less than about 28°, and
wherein the golf club has a blade length that is less than about 80 mm.

13. The set of golf clubs of claim 12 , wherein the golf club head has a moment of inertia about a vertical axis extending through the center of gravity that is greater than 215 kgmm 2 .

14. The set of golf clubs of claim 12 , wherein the main body includes a face support and a partial sole and the muscle back shell is coupled to the face support and the partial sole.

15. The set of golf clubs of claim 14 , wherein the muscle back shell comprises a sole flange and a back flange, and the sole flange and the partial sole of the main body form a bounce surface of the golf club head.

16. The set of golf clubs of claim 15 , wherein the sole flange of the muscle back shell forms a majority of the bounce surface of the golf club head.

17. The set of golf clubs of claim 12 , wherein the moment of inertia about the longitudinal axis of the shaft of the golf club head is less than 535 kgmm 2 .

18. The set of golf clubs of claim 12 , wherein a ratio of the moment of inertia about a vertical axis extending through the center of gravity of the golf club head and the moment of inertia about the longitudinal axis of the shaft of the golf club head is less than about 2.20.

19. The set of golf clubs of claim 12 , wherein a ratio of the moment of inertia about a vertical axis extending through the center of gravity of the golf club head and the moment of inertia about the longitudinal axis of the shaft of the golf club head is less than about 2.15.

Assignees

• Acushnet Co

Inventors

• Gilbert Peter J
• Hipp Helene
• Mendoza Eduardo
• Stanescu Adrian L
• Jorgensen Douglas C

Classifications

• A63B53/0475

  with one or more enclosed cavities · CPC title

• A63B60/54

  with means for damping vibrations · CPC title

• A63B53/047 Primary

  iron-type · CPC title

• A63B2209/10

  with adhesive type surfaces, i.e. hook and loop-type fastener · CPC title

• A63B2053/0458

  Human Necessities · mapped topic