Golf club head
AssigneeSumitomo Rubber Industries, Ltd.
InventorsMasahide Onuki, Hiroshi Hasegawa, Hiromasa Tsunashima
Life of this patent
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Abstract
A hollow golf club head comprises a face part having a face for striking a ball, and a main body extending rearward from the face part. The main body is provided with a low-rigidity zone which comprises through holes and connecting portions arranged alternately along a peripheral edge of the face. The through holes penetrate the main body from the outside to the inside of the main body. The connecting portions extend in the front-back direction of the head, and include an oblique connecting portion comprising an oblique part inclined with respect to the front-back direction.
Claims24
A hollow golf club head comprising:
- a face part having a face for striking a ball, and
- a main body extending rearward from the face part,
- wherein
- the main body is provided with a low-rigidity zone,
- the low-rigidity zone comprises through holes and connecting portions which are arranged alternately along a peripheral edge of the face,
- the through holes penetrate the main body from the outside to the inside of the main body,
- the connecting portions are formed between the adjacent through holes and extend in the front-back direction of the head, and
- the connecting portions have a width of from 1 mm to 3 mm, and are arranged at pitches P of from 2 mm to 10 mm along said peripheral edge,
- the connecting portions include oblique connecting portions each comprising at least a first oblique connecting part inclined with respect to the front-back direction of the head, wherein said first oblique connecting part has a width of from 1 mm to 3 mm.
Dependencies are inferred from the claim text.