Golf club

Patent metadata

Field	Value
Publication number	US-9480890-B2
Application number	US-201414311886-A
Country	US
Kind code	B2
Filing date	Jun 23, 2014
Priority date	Jul 8, 2013
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

A golf club 2 includes a head 4 and a shaft 6 . A face 5 includes a sole s 4 and a grounding member X 1 . The sole s 4 includes a plurality of attaching portions r 1 . The grounding member X 1 can be fixed to each of the plurality of attaching portions r 1 . A face angle can be varied depending on an attached position of the grounding member X 1 . Preferably, the golf club 2 further includes a non-grounding member X 2 . Preferably, the non-grounding member X 2 can be fixed to each of the attaching portions r 1 . Preferably, attached position of the non-grounding member X 2 does not influence the face angle.

First claim

What is claimed is:

1. A golf club comprising:
a head; and
a shaft,
wherein the head comprises a sole, a face, at least one grounding member, and at least one non-grounding member;
the sole comprises a plurality of attaching portions;
the grounding member is detachably attached to any of the plurality of attaching portions;
the face angle is varied depending on an attached position of the grounding member;
the non-grounding member is attachable and detachable to/from each of the attaching portions; and
an attached position of the non-grounding member does not influence the face angle.

2. The golf club according to claim 1 , wherein the non-grounding member is attached to the attaching portion to which the grounding member is not attached.

3. The golf club according to claim 1 , wherein each of the plurality of attaching portions is a recess; the recess can regulate rotation of the grounding member; and the recess can regulate rotation of the non-grounding member.

4. The golf club according to claim 1 , wherein a weight of the grounding member is substantially equal to a weight of the non-grounding member.

5. The golf club according to claim 1 , wherein a center of gravity of the head moves with movement of the grounding member; and the golf club can be adjusted so that a center of gravity of the head moves to a back side as the face angle is opened.

6. The golf club according to claim 1 , further comprising a screw, wherein the grounding member is detachably attached by the screw.

7. The golf club according to claim 1 , further comprising two screws, wherein the number of the non-grounding members is two; and each of the non-grounding members is detachably attached by each of the screws.

8. The golf club according to claim 1 , wherein the plurality of attaching portions are disposed in different positions in a face-back direction.

9. The golf club according to claim 1 , wherein each of the plurality of attaching portions is a recess; a height of the grounding member is greater than a depth of the recess; and a height of the non-grounding member is equal to or less than the depth of the recess.

10. The golf club according to claim 1 , wherein the non-grounding member comprises a hollow portion.

11. The golf club according to claim 1 , wherein the grounding member comprises a hollow portion.

12. The golf club according to claim 1 , wherein the grounding member comprises a grounding surface; and the grounding surface is a curved surface convexed to the outside of the head.

13. The golf club according to claim 1 , wherein the non-grounding member can suppress movement of a center of gravity of the head caused by adjustment of the face angle.

14. The golf club according to claim 1 , wherein the number of the attaching portions is equal to or greater than three; the grounding member is attached to at least one of the attaching portions; and the non-grounding member can be selectively attached to any of the other attaching portions.

15. The golf club according to claim 1 , wherein if the number of the grounding members is defined as N 1 , the number of the non-grounding members is defined as N 2 , and the number of the attaching portions is defined as N 3 , N 3 is equal to the sum of N 1 and N 2 .

16. The golf club according to claim 1 , wherein the number of the grounding members is equal to or greater than two; and the golf club comprises the grounding members having heights different from each other.

17. The golf club according to claim 1 , wherein each of the plurality of attaching portions is a recess; the plurality of recesses have the same planar view shape; and the grounding member and the non-grounding member have the same planar view shape.

18. The golf club according to claim 1 , wherein the golf club is a driver.

19. The golf club according to claim 1 , wherein a first attaching portion, a second attaching portion, and a third attaching portion are provided as the attaching portions;
a first sole indication portion is provided in a position corresponding to the first attaching portion;
a second sole indication portion is provided in a position corresponding to the second attaching portion;
a third sole indication portion is provided in a position corresponding to the third attaching portion; and
the first sole indication portion, the second sole indication portion, and the third sole indication portion are indications capable of showing a state of the face angle.

20. A golf club comprising:
a head; and
a shaft,
wherein the head comprises a sole, a face and at least one grounding member;
the sole comprises a plurality of attaching portions;
the grounding member is detachably attached to any of the plurality of attaching portions;
the face angle is varied depending on an attached position of the grounding member; and
the plurality of attaching portions are disposed in different positions in a face-back direction.

Assignees

• Dunlop Sports Co Ltd
• Dunlop Sports Co Ltd

Inventors

• Matsunaga Kiyofumi
• Mizutani Naruhiro

Classifications

• A63B53/06 Primary

  adjustable · CPC title

• A63B2053/0433

  Human Necessities · mapped topic

• A63B2053/0491

  with added weights, e.g. changeable, replaceable · CPC title

• A63B2053/027

  Human Necessities · mapped topic

• A63B53/0466

  wood-type · CPC title