GOLF CLUB HEAD

• US 20150065265A1
• Filed: 08/28/2014
• Published: 03/05/2015
• Est. Priority Date: 08/29/2013
• Status: Abandoned Application

• Current Assignee: Dunlop Sports Co. Ltd. (Sumitomo Rubber Industries Limited)
• Original Assignee: Dunlop Sports Co. Ltd. (Sumitomo Rubber Industries Limited)
• Inventors: MOTOKAWA, Yuki, KLINE, Michael J.
• Application Number:
  US14/471,651
• Publication Number:
  US 20150065265A1
• Time in Patent Office: Days
• US Class Current: 473/335
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/06 adjustable
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence
• CPC Class Codes: A63B 60/52 with slits

Abstract

A golf club head comprises a head main body having a hollow therein and a weight member having a specific gravity more than that of the head main body. The head main body has a face portion for hitting a ball and a sole portion continuous from the face portion to form a bottom surface of the club head. The weight member is disposed in the hollow and extends in the toe-heel direction. In a vertical cross section of the club head including the sweet spot, the weight member is arranged without contacting with the face portion and the sole portion.

Claims

1. A golf club head comprising

a head main body having a hollow therein, the head main body comprising a face portion and a sole portion extending from the face portion and defining a bottom surface of the club head, and

a weight member disposed in the hollow, the weight member extending in a toe-heel direction of the head across a vertical plane including the sweet spot of the head and being substantially parallel with the front-back direction of the head such that, in the vertical plane, the weight member does not contact the face portion and the sole portion.

2. The golf club head according to claim 1, wherein

in the vertical plane, the weight member is disposed in a corner portion between the face portion and the sole portion.

3. The golf club head according to claim 1, wherein

in the vertical plane, a centroid of a cross section of the weight member is positioned on a face portion side of the center of gravity of the head.

4. The golf club head according to claim 1, wherein

in the vertical plane, a centroid of a cross section of the weight member is positioned on a sole portion side of the center of gravity of the head.

5. The golf club head according to claim 1, wherein

in the vertical plane, an entire cross section of the weight member is positioned on a sole portion side of the center of gravity of the head and on a face portion side of the center of gravity of the head.

6. The golf club head according to claim 1, wherein

the weight member is spaced apart from the sole portion continuously in the toe-heel direction between both end portions of the weight member.

7. The golf club head according to claim 1, wherein

a toe-side portion and a heel-side portion of the weight member are fixed to the head main body.

8. The golf club head according to claim 7, wherein

the head main body comprises a crown portion being continuous from the face portion and defining a top surface of the club head, and a side portion extending between the crown portion and the sole portion, and

the weight member comprises a toe-side end face fixed to a toe-side part of the side portion, and a heel-side end face fixed to a heel-side part of the side portion.

9. The golf club head according to claim 7, wherein

the weight member comprises a toe-side end fixed to a toe-side part of the sole portion, and a heel-side end fixed to a heel-side part of the sole portion.

10. The golf club head according to claim 1, wherein

the area of the cross section of the weight member is increased toward its center in the toe-heel direction from its toe-side and from its heel-side.

11. The golf club head according to claim 1, wherein

the weight member is fixed to the head main body by the use of a screw.

12. The golf club head according to claim 1, which comprises an adjusting mechanism for changing the position of the weight member in one of the front-back direction, up-down direction and toe-heel direction of the head.

13. The golf club head according to claim 1, which comprises an adjusting mechanism for changing the position of the weight member in two of the front-back direction, up-down direction and toe-heel direction of the head.

14. The golf club head according to claim 1, wherein

The weight member is welded to the head main body.

15. The golf club head according to claim 1, wherein

the weight member and the head main body are integrally formed by casting.