Golf club head

Patent metadata

Field	Value
Publication number	US-2021283471-A1
Application number	US-202117333175-A
Country	US
Kind code	A1
Filing date	May 28, 2021
Priority date	Sep 30, 2016
Publication date	Sep 16, 2021
Grant date	—

Abstract

A golf club head includes a striking face, a sole portion, a top portion, a hosel, a rear surface, a loft no less than 40°, a virtual vertical plane, and a center of gravity. The striking face has a face center, a leading edge, and a virtual striking face plane. The hosel includes an internal bore configured to receive a golf shaft and includes a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf shaft. The rear surface is opposite the striking face and has an upper portion and a lower portion, the lower portion including a forward-extending recess. The insert covers the recess forming a hollow portion. The virtual vertical plane is perpendicular to the striking face plane and passes through the face center. The center of gravity is spaced a distance from the virtual vertical plane in the heel-to-toe direction.

First claim

We claim:

1 . A golf club head that, when oriented in a reference position relative to a virtual ground plane, comprises:
a loft L 1 no less than 40°; a striking face having a face center, a leading edge, and defining a virtual striking face plane generally parallel to the striking face; a sole portion extending in the front-to-rear direction from the leading edge to a trailing edge; a top portion opposite the sole portion; a rear surface opposite the striking face; a hosel configured to receive a golf shaft; a virtual vertical plane perpendicular to the striking face plane and passing through the face center, such that within the virtual vertical plane:
(a) the sole includes a sole lowermost point; and
(b) a trailing edge bounce angle θ 2 is between 6° and 8°, the trailing edge bounce angle defined as an angle formed between: (i) a straight line passing through the trailing edge and the sole lowermost point; and (ii) the virtual ground plane; and
a club head center of gravity spaced from the virtual vertical plane in the heel-to-toe direction by a distance D 1 that is no greater than 6 mm.

2 . The golf club head of claim 1 , wherein the sole portion comprises a V shape in the front-to-rear direction.

3 . The golf club head of claim 1 , further comprising a heel blade height BH 1 no greater than 38 mm.

4 . The golf club head of claim 1 , wherein the distance D 1 is no greater than 4 mm.

5 . The golf club head of claim 4 , wherein D 1 is no greater than 3 mm.

6 . The golf club head of claim 1 , wherein the hosel further comprises an internal bore having an abutment surface configured to support the golf shaft and an auxiliary recess extending sole-ward from the abutment surface.

7 . The golf club head of claim 1 , further comprising a sole taper angle in the heel-to-toe direction no less than 10% of the loft L 1 .

8 . The golf club head of claim 1 , wherein, in the virtual vertical plane, the club head further comprises a leading edge bounce θ 1 no greater than 20°, the leading edge bounce angle defined as an angle between: (i) a straight line passing through the leading edge and the sole lowermost point; and (ii) the virtual ground plane.

9 . The golf club head of claim 1 , wherein the hosel further comprises an internal bore depth no greater than 30 mm.

10 . A golf club head that, when oriented in a reference position relative to a virtual ground plane, comprises:
a loft L 1 no less than 40°; a striking face having a face center, a leading edge, and defining a virtual striking face plane generally parallel to the striking face; a sole portion extending in the front-to-rear direction from the leading edge to a trailing edge; a top portion opposite the sole portion; a rear surface opposite the striking face; a hosel configured to receive a golf shaft; a virtual vertical plane perpendicular to the striking face plane and passing through the face center, such that within the virtual vertical plane:
(a) the sole includes a sole lowermost point;
(b) a trailing edge bounce angle θ 2 is no less than 6°, the trailing edge bounce angle defined as an angle formed between: (i) a straight line passing through the trailing edge and the sole lowermost point; and (ii) the virtual ground plane; and
(c) an overall bounce angle θ 3 that is no less than 4°, the overall bounce angle defined as an angle formed between: (i) a straight line passing through the leading edge and the trailing edge; and (ii) the virtual ground plane; and
a club head center of gravity spaced from the virtual vertical plane in the heel-to-toe direction by a distance D 1 that is no greater than 6 mm.

11 . The golf club head of claim 10 , wherein the sole portion comprises a V shape in the front-to-rear direction.

12 . The golf club head of claim 10 , further comprising a heel blade height BH 1 no greater than 38 mm.

13 . The golf club head of claim 10 , wherein the distance D 1 is no greater than 4 mm.

14 . The golf club head of claim 13 , wherein D 1 is no greater than 3 mm.

15 . The golf club head of claim 10 , wherein the hosel further comprises an internal bore having an abutment surface configured to support the golf shaft and an auxiliary recess extending sole-ward from the abutment surface.

16 . The golf club head of claim 10 , further comprising a sole taper angle in the heel-to-toe direction no less than 10% of the loft L 1 .

17 . The golf club head of claim 10 , wherein, in the virtual vertical plane, the club head further comprises a leading edge bounce θ 1 no less than 4°, the leading edge bounce angle defined as an angle between: (i) a straight line passing through the leading edge and the sole lowermost point; and (ii) the virtual ground plane.

18 . The golf club head of claim 10 , wherein the hosel further comprises an internal bore depth no greater than 30 mm.

19 . The golf club head of claim 10 , wherein the overall bounce angle θ 3 is between 4° and 8°.

20 . The golf club head of claim 10 , wherein the trailing edge bounce angle θ 2 is between 6° and 8°.

Assignees

• Sumitomo Rubber Ind

Inventors

• Ripp Patrick
• Seagram Philip
• Becktor Mika
• Dolezel Keith

Classifications

• A63B53/06

  adjustable · CPC title

• A63B2053/0479

  Wedge-type clubs, details thereof · CPC title

• A63B53/02

  Joint structures between the head and the shaft · CPC title

• A63B53/0433

  with special sole configurations · CPC title

• A63B53/0475

  with one or more enclosed cavities · CPC title