Golf club

Patent metadata

Field	Value
Publication number	US-9814943-B2
Application number	US-201615359268-A
Country	US
Kind code	B2
Filing date	Nov 22, 2016
Priority date	Dec 4, 2015
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

A golf club 100 includes a head 200 having a hosel part 202, a shaft 300, and an engaging part 600 disposed at a tip part of the shaft 300. The engaging part 600 includes a sleeve 400 which has an oppositely tapered shape and is fixed to the tip part of the shaft 300. The hosel part 202 includes a hosel hole 204, and a hosel slit 206 which is provided on a side of the hosel hole 204 and enables the shaft 300 to pass through the hosel slit 206. The hosel hole 204 has an oppositely tapered hole having a shape corresponding to a shape of an outer surface of the engaging part 600. The engaging part 600 is fitted into the oppositely tapered hole.

First claim

What is claimed is:

1. A golf club comprising:
a head having a hosel part;
a shaft; and
an engaging part disposed at a tip part of the shaft,
wherein:
the engaging part includes a sleeve which has an oppositely tapered shape and is fixed to the tip part of the shaft;
the hosel part includes a hosel hole, and a hosel slit which is provided on a side of the hosel hole and enables the shaft to pass through the hosel slit;
the hosel hole has an oppositely tapered hole having a shape corresponding to a shape of an outer surface of the engaging part; and
the engaging part is fitted into the oppositely tapered hole.

2. The golf club according to claim 1 , wherein an axis line of the shaft is inclined with respect to, or parallel and eccentric to an axis line of an outer surface of the sleeve.

3. The golf club according to claim 1 , wherein the engaging part includes the sleeve and at least one spacer externally fitted to the sleeve.

4. The golf club according to claim 3 , wherein an axis line of an inner surface of the spacer is inclined with respect to, or parallel and eccentric to an axis line of an outer surface of the spacer.

5. The golf club according to claim 1 , wherein the outer surface of the engaging part is a pyramid surface.

6. The golf club according to claim 5 , wherein the pyramid surface is a four-sided pyramid surface, a six-sided pyramid surface, or an eight-sided pyramid surface.

7. The golf club according to claim 1 , wherein the head further includes a coming-off preventing mechanism for regulating a movement of the engaging part in an engaging releasing direction.

8. The golf club according to claim 1 , wherein an area of sectional view of an outer surface of the sleeve is gradually increased as going to a tip side of the shaft, and an area of sectional view of the outer surface of the engaging part is gradually increased as going to the tip side of the shaft.

9. The golf club according to claim 8 , wherein an area of sectional view of the oppositely tapered hole is gradually increased as going to the tip side of the shaft.

Assignees

• Dunlop Sports Co Ltd

Inventors

• Onuki Masahide
• Motokawa Yuki
• Mizutani Naruhiro

Classifications

• A63B53/02 Primary

  Joint structures between the head and the shaft · CPC title

• A63B53/0466

  wood-type · CPC title