Golf club set

Patent metadata

Field	Value
Publication number	US-2016354653-A1
Application number	US-201615171465-A
Country	US
Kind code	A1
Filing date	Jun 2, 2016
Priority date	Jun 3, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

The golf club set according to the present invention is a golf club set constituted by a plurality of numbered golf clubs with different loft angles. In each of the golf, a crown portion has a main body portion that connects to the sole portion and a raised portion that rises to form a step from the main body portion and extends in a toe-heel direction along a boundary with the face portion. In at least one pair of a lower numbered golf club and a higher numbered golf club, among the plurality of golf clubs included in the golf club set, a length of the step in a face-back direction along a perpendicular plane that passes through a sweet spot and a center of gravity of the golf club head is longer in the lower numbered golf club than in the higher numbered golf club.

First claim

1 . A golf club set comprising a plurality of numbered golf clubs with different loft angles,
wherein the golf clubs each include: a shaft; and a golf club head, the golf club head includes: a crown portion; a face portion; and a sole portion, the crown portion includes: a main body portion that connects to the sole portion; and a raised portion that extends in a toe-heel direction along a boundary with the face portion and rises to forma step from the main body portion, and in at least one pair of a lower numbered golf club and a higher numbered golf club, among the plurality of golf clubs included in the golf club set, a length of the step in a face-back direction along a perpendicular plane that passes through a sweet spot and a center of gravity of a golf club head is longer in the lower numbered golf club than in the higher numbered golf club.

2 . The golf club set according to claim 1 , wherein the at least one pair of the lower numbered golf club and the higher numbered golf club are adjacently numbered golf clubs.

3 . The golf club set according to claim 1 , wherein the length of the raised portion in the face-back direction along the perpendicular plane that passes through the sweet spot and the center of gravity of the golf club head is substantially same for the lower numbered golf club and the higher numbered golf club.

4 . The golf club set according to claim 1 , wherein
at least one of the golf clubs included in the golf club set is configured by assembling a head body and a face member, the head body is constituted by the crown portion and the sole portion, and has an opening formed therein that is surrounded by the crown portion and the sole portion, the face member is formed in a cup shape having the face portion that has a plate shape and is for hitting a ball and a peripheral portion that extends from a peripheral edge of the face portion and is joined to an end surface of the opening, and the peripheral portion of the face member is joined to the crown portion and the sole portion at the opening of the head body.

5 . The golf club set according to claim 1 ,
wherein the raised portion includes a first portion that is joined to a peripheral portion of the face member and a second portion that is integrally connected to a back side of the first portion, the first portion is thicker than the peripheral portion of the face member.

6 . The golf club set according to claim 5 ,
wherein the first portion is thicker than the second portion.

7 . The golf club set according to claim 6 ,
wherein at an outer surface of the crown portion, the first portion and the second portion are connected in a flat manner, at an inner surface of the crown portion, the second portion forms a step at the back side of the first portion.

8 . The golf club set according to claim 5 ,
wherein a length of the first portion in the face-back direction and a length of the second portion in the face-back direction are substantially same.

9 . The golf club set according to claim 5 ,
wherein the second portion has substantially same thickness as the main body portion.

10 . The golf club set according to claim 4 ,
wherein at the sole portion, a thickness of an end surface at the opening is thicker than a thickness of an peripheral portion of the face member.

11 . The golf club set according to claim 5 ,
wherein a height of the raised portion is substantially same for the lower numbered golf club and the higher numbered golf club.

Assignees

• Dunlop Sports Co Ltd

Inventors

• Aramaki Tomotaka

Classifications

• A63B53/0466 Primary

  wood-type · CPC title

• A63B2053/005

  Human Necessities · mapped topic

• A63B53/005

  Club sets · CPC title

• A63B53/0416

  Heads having an impact surface provided by a face insert · CPC title