Golf club head and method for manufacturing same
AssigneeSumitomo Rubber Industries, Ltd.
InventorsSatoru HANAMITSU, Naoyoshi UEDA, Shota HASUNUMA, Tomoyuki HAYASE
Life of this patent
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Abstract
A golf club head having a hollow therein comprises a face portion made of a metal material. The face portion has a striking face for striking a golf ball and a back face opposite to the striking face. At least a part of the back face has a smooth back surface portion having an arithmetic mean roughness of 1 micrometer or less and a maximum height roughness of 10 micrometers or less.
Claims20
A golf club head having a hollow therein, comprising:
- a face portion formed of a metal material, and comprising a front striking face for striking a golf ball and a back face opposite the front striking face,
- wherein
- the back face at least partially has a smooth back surface portion having
- an arithmetic mean roughness of 1 micrometer or less and
- a maximum height roughness of 10 micrometers or less.
A method for manufacturing a golf club head comprising a metallic face portion having a front striking face for striking a golf ball and a back face opposite the front striking face, comprising:
- a smoothing step for forming, on at least a part of the back face, a smooth back surface portion having an arithmetic mean roughness of 1 micrometer or less and a maximum height roughness of 10 micrometers or less.
Dependencies are inferred from the claim text.