Golf club

Patent metadata

Field	Value
Publication number	US-9597566-B2
Application number	US-201414527133-A
Country	US
Kind code	B2
Filing date	Oct 29, 2014
Priority date	Oct 30, 2013
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A golf club includes a shaft; a head mounted to the tip end of the shaft; a grip mounted to the butt end of the shaft; a first vibration damping member arranged on the head side of the shaft; and a second vibration damping member arranged on the grip side of the shaft. The first range of the shaft in which the first vibration damping member is arranged includes a position of the shaft corresponding to the top end of the hosel of the head and has a length of 25 to 250 mm in the longitudinal direction of the shaft. The second range of the shaft in which the second vibration damping member is arranged includes a position of the shaft corresponding to the tip end of the grip and has a length of 150 to 250 mm in the longitudinal direction of the shaft.

First claim

What is claimed is:

1. A golf club comprising:
a shaft having a tip end and a butt end;
a head mounted to the shaft on the tip end thereof, the head comprising a hosel having a hosel top end;
a grip mounted to the shaft on the butt end thereof, the grip having a tip end and a butt end;
a first vibration damping member arranged on a head side of the shaft along a longitudinal direction of the shaft, wherein a first range of the shaft in which the first vibration damping member is arranged includes a position of the shaft corresponding to the top end of the hosel of the head and has a length of 25 to 250 mm in the longitudinal direction of the shaft; and
a second vibration damping member arranged on a grip side of the shaft along the longitudinal direction of the shaft, wherein a second range of the shaft in which the second vibration damping member is arranged includes a position of the shaft corresponding to the tip end of the grip and has a length of 150 to 250 mm in the longitudinal direction of the shaft,
wherein the grip has a shaft insertion hole extending along the longitudinal direction of the grip and has a damping member holding recess on an interior wall of the shaft insertion hole to hold the second vibration damping member therein, the second vibration damping member being arranged between the shaft and the grip,
wherein each of the first and second vibration damping members has a multilayered structure comprising at least two layers of a core layer and a damping layer.

2. The golf club according to claim 1 , wherein the first vibration damping member is arranged between the shaft and the head.

3. The golf club according to claim 1 , wherein the shaft has a cylindrical shape, and wherein each of the first and second vibration damping members is arranged on an inner side of the cylindrical shape of the shaft.

4. The golf club according to claim 1 , wherein the damping layer has a thickness of 0.02 to 0.2 mm.

5. The golf club according to claim 1 , wherein the first vibration damping member has a plurality of air holes, which passes through the core layer and the damping layer.

6. The golf club according to claim 1 , wherein the second vibration damping member has a plurality of air holes, which passes through the core layer and the damping layer.

7. The golf club according to claim 1 , wherein the damping layer of the first vibration damping member comprises a gel material, and the core layer of the first vibration damping member comprises plastic or carbon fibers.

8. The golf club according to claim 1 , wherein the damping layer of the second vibration damping member comprises a gel material, and the core layer of the second vibration damping member comprises plastic or carbon fibers.

9. The golf club according to claim 1 , wherein a ferrule is attached to the shaft on a part of an outer periphery thereof and extends further upward from the top end of the hosel of the head.

10. The golf club according to claim 9 , wherein the hosel of the head has shaft insertion hole and a damping member holding recess on an interior wall of the shaft insertion hole to hold a part of the first vibration damping member therein, and the ferrule has shaft insertion hole and a damping member holding recess on an interior wall of the shaft insertion hole to hold another part of the first vibration damping member therein.

11. A golf club comprising:
a shaft having a tip end and a butt end;
a head mounted to the shaft on the tip end thereof, the head comprising a hosel having a hosel top end;
a grip mounted to the shaft on the butt end thereof, the grip having a tip end and a butt end;
a first vibration damping member arranged on a head side of the shaft along a longitudinal direction of the shaft, wherein a first range of the shaft in which the first vibration damping member is arranged includes a position of the shaft corresponding to the top end of the hosel of the head and has a length of 25 to 250 mm in the longitudinal direction of the shaft; and
a second vibration damping member arranged on a grip side of the shaft along the longitudinal direction of the shaft, wherein a second range of the shaft in which the second vibration damping member is arranged includes a position of the shaft corresponding to the tip end of the grip and has a length of 150 to 250 mm in the longitudinal direction of the shaft,
wherein the grip has a shaft insertion hole extending along the longitudinal direction of the grip and has a damping member holding recess on an interior wall of the shaft insertion hole to hold the second vibration damping member therein, the second vibration damping member being arranged between the shaft and the grip, and
wherein a length of the damping member holding recess of the grip being shorter than a length of the second vibration damping member.

Assignees

• Bridgestone Sports Co Ltd
• Bridgestone Sports Co Ltd

Inventors

• Ishihara Tomotaka
• Ban Wataru
• Sato Fumiaki

Classifications

• A63B60/54 Primary

  with means for damping vibrations · CPC title

• A63B60/06

  Handles · CPC title

• A63B60/00

  Details or accessories of golf clubs, bats, rackets or the like · CPC title

• A63B60/10

  with means for indicating correct holding positions (A63B60/12 takes precedence) · CPC title

• A63B60/08

  characterised by the material · CPC title