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US 2018/0001159 A1Published application
Hollow golf club head
AssigneeDunlop Sports Co. Ltd.
InventorNaruhiro MIZUTANI
Life of this patent
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Abstract
A head 2 includes a face 10 and a sole 6. The face 10 has a face center Fc. The sole 6 includes a groove 20 extending from a toe side to a heel side. The whole groove 20 is located below the face center Fc. A bottom part of the groove 20 is curved so that it projects to a lower side along a shape of the sole 6. A maximum value of a groove depth D of the groove 20 is 5% or greater but 15% or less of a height of a center of gravity of the head. The head 2 is a hollow golf club head.
Claims12
A hollow golf club head comprising:
- a face;
- and
- a sole,
- wherein:
- the face has a face center;
- the sole includes a groove extending from a toe side to a heel side;
- the whole groove is located below the face center;
- a bottom part of the groove is curved so that it projects to a lower side along a shape of the sole;
- and
- a maximum value of a groove depth of the groove is 5% or greater but 15% or less of a height of a center of gravity of the head.
7 more elements
Dependencies are inferred from the claim text.