US 2024/0198192 A1Published application

Golf club head

AssigneeSumitomo Rubber Industries, Ltd.

InventorsTakashi ONO, Naruhiro MIZUTANI

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Abstract

A head has a curvature radius R of a boundary portion between a hitting face and a crown surface, and has a curvature radius S of a boundary portion between the hitting face and a sole surface. The head has, on its toe side, a curvature radius Rt, a curvature radius St, a face height Ft, and a head thickness Tt. The head has, at its center, a curvature radius Rc, a curvature radius Sc, a face height Fc, and a head thickness Tc. The head 4 has, on its heel side, a curvature radius Rh, a curvature radius Sh, a face height Fh, and a head thickness Th. Ft/Tt is smaller than Fh/Th. The head satisfies the following relationship (a) and/or (b): Rt > Rc ≥ Rh ; ( a ) St > Sc ≥ Sh . ( b )

Claims12

Dependent claims

A golf club head comprising:

a hitting face that includes a face center;
a crown surface;
and
a sole surface, wherein
a boundary portion between the hitting face and the crown surface has a curvature radius denoted by R,
a boundary portion between the hitting face and the sole surface has a curvature radius denoted by S,
the hitting face has a face height denoted by F,
the golf club head has a head thickness denoted by T,
the curvature radius R at a position spaced 15 mm apart from the face center toward a toe side is referred to as a curvature radius Rt, the curvature radius S at the same position is referred to as a curvature radius St, the face height F at the same position is referred to as a face height Ft, and the head thickness T at the same position is referred to as a head thickness Tt,
the curvature radius R at a position of the face center is referred to as a curvature radius Rc, the curvature radius S at the same position is referred to as a curvature radius Sc, the face height F at the same position is referred to as a face height Fc, and the head thickness T at the same position is referred to as a head thickness Tc,
the curvature radius R at a position spaced 15 mm apart from the face center toward a heel side is referred to as a curvature radius Rh, the curvature radius S at the same position is referred to as a curvature radius Sh, the face height F at the same position is referred to as a face height Fh, and the head thickness T at the same position is referred to as a head thickness Th,
Ft/Tt is smaller than Fh/Th, and
the golf club head satisfies the following relationship (a) and/or the following relationship (b):
Rt
>
Rc
≥
Rh
;
(
a
)
St
>
Sc
≥
Sh
.
(
b
)

28 more elements

A golf club head comprising:

a hitting face that includes a face center;
a crown surface;
and
a sole surface, wherein
a boundary portion between the hitting face and the crown surface has a curvature radius denoted by R,
a boundary portion between the hitting face and the sole surface has a curvature radius denoted by S,
the hitting face has a face height denoted by F,
the golf club head has a head thickness denoted by T,
the curvature radius R at a position spaced 15 mm apart from the face center toward a toe side is referred to as a curvature radius Rt, the curvature radius S at the same position is referred to as a curvature radius St, the face height F at the same position is referred to as a face height Ft, and the head thickness T at the same position is referred to as a head thickness Tt,
the curvature radius R at a position of the face center is referred to as a curvature radius Rc, the curvature radius S at the same position is referred to as a curvature radius Sc, the face height F at the same position is referred to as a face height Fc, and the head thickness T at the same position is referred to as a head thickness Tc,
the curvature radius R at a position spaced 15 mm apart from the face center toward a heel side is referred to as a curvature radius Rh, the curvature radius S at the same position is referred to as a curvature radius Sh, the face height F at the same position is referred to as a face height Fh, and the head thickness T at the same position is referred to as a head thickness Th,
Ft/Tt is smaller than Fh/Th,
the golf club head satisfies the following relationship (a) shown below:
Rt
>
Rc
≥
Rh
,
(
a
)
the curvature radius Rt is greater than or equal to 9.5 mm and less than or equal to 13.5 mm,
the curvature radius Rc is greater than or equal to 7.5 mm and less than or equal to 11.5 mm,
the curvature radius Rh is greater than or equal to 6.0 mm and less than or equal to 10.0 mm,
the golf club head has a head volume of greater than or equal to 300 cm3, and
the golf club head has a loft angle of less than or equal to 13°.

24 more elements

Dependencies are inferred from the claim text.