Interchangeable shaft system

Patent metadata

Field	Value
Publication number	US-9327171-B2
Application number	US-201414456923-A
Country	US
Kind code	B2
Filing date	Aug 11, 2014
Priority date	Dec 18, 2007
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve assembly, and a club head. The shaft sleeve assembly is coupled to an end of the shaft and is received in a hosel included in the club head. The shaft sleeve assembly is removably coupled to the club head includes portions coupled by a flexible coupling.

First claim

We claim:

1. A golf club, comprising:
a golf club head including a hosel and a club head fastener bore;
an elongate shaft;
a shaft sleeve assembly coupled to a distal end portion of the shaft, the shaft sleeve assembly including a sleeve body and a tension member coupled to the sleeve body by a flexible coupling;
a wedge member interposed between a portion of the sleeve body and the proximal end of the hosel, wherein the wedge member defines a bore and a portion of the sleeve body and a portion of the tension member extend into the bore; and
a fastener disposed in the club head fastener bore that releasably couples the tension member to the club head,
wherein a longitudinal axis of a proximal portion of the hosel is aligned with a longitudinal axis of the club head fastener bore, and
wherein the wedge member provides a wedge angle between the shaft sleeve and the hosel and wherein the sleeve body provides a shaft angle between the sleeve body and the shaft.

2. The golf club of claim 1 , wherein the magnitudes of the wedge angle and the shaft angle are different.

3. The golf club of claim 1 , wherein the magnitudes of the wedge angle and the shaft angle are about the same.

4. The golf club of claim 1 , wherein the wedge member includes end surfaces that are angled relative to each other, wherein a first end surface abuts a portion of the sleeve body and a second end surface abuts a portion of the hosel.

5. The golf club of claim 1 , wherein the tension member comprises a plurality of flexible arms that define a cavity in a proximal portion of the tension member.

6. The golf club of claim 5 , wherein a distal portion of the tension member defines a fastener bore that receives a portion of the fastener.

7. The golf club of claim 6 , wherein the cavity is elongate and defines a longitudinal axis that is co-axial with a longitudinal axis of the tension member fastener bore.

8. The golf club of claim 5 , wherein the sleeve body comprises a tubular portion and a ball extending from a distal end of the tubular portion, wherein the ball is received in the cavity of the tension member to form the flexible coupling.

9. The golf club of claim 1 , wherein the wedge member is tubular and slidably coupled to the shaft sleeve assembly and wherein the shaft sleeve assembly comprises means for capturing the wedge member on the shaft sleeve assembly.

Assignees

• Acushnet Co

Inventors

• Knutson Scott A
• Zimmerman Gery M
• Stokes Joshua C

Classifications

• A63B53/02 Primary

  Joint structures between the head and the shaft · 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

• A63B2053/0412

  Human Necessities · mapped topic

• A63B2053/023

  Human Necessities · mapped topic

• A63B53/047

  iron-type · CPC title