Iron golf club head
AssigneeMizuno Corporation
InventorsKazuhiro Doi, Kensuke Maenaka
Life of this patent
Estimating the term…
Abstract
An object is to provide an iron golf club head that has high drainage performance and facilitates application of backspin also in a wet state. In an iron golf club head including a plurality of scorelines in a face surface, a microgroove including at least an inclined groove is included between the scorelines, the microgroove extending in a heel leading edge-toe top edge direction to be connected to an upper scoreline.
Claims12
An iron golf club head with a plurality of scorelines in a face surface, the iron golf club head comprising a plurality of microgrooves between two adjacent scorelines of the plurality of scorelines, each microgroove of the plurality of microgrooves including at least an inclined groove extending in a heel leading edge-toe top edge direction to be connected to an upper scoreline of the two adjacent scorelines,
- wherein when a part between the two adjacent scorelines is divided into two equal parts in a top edge-leading edge direction, a surface roughness (Ra) along an entire length between the two adjacent scorelines in a toe-heel direction on a top edge side is greater than a surface roughness (Ra) along the entire length between the two adjacent scorelines in the toe-heel direction on a leading edge side.
An iron golf club head with a plurality of scorelines in a face surface, the iron golf club head comprising a plurality of microgrooves between two adjacent scorelines of the plurality of scorelines, each microgroove of the plurality of microgrooves including at least an inclined groove extending in a heel leading edge-toe top edge direction to be connected to an upper scoreline of the two adjacent scorelines,
- wherein when a part between the two adjacent scorelines is divided into two equal parts in a top edge-leading edge direction, a surface roughness (Ra) along an entire length between the two adjacent scorelines in a toe-heel direction on a top edge side is greater than a surface roughness (Ra) along the entire length between the two adjacent scorelines in the top edge-leading edge direction.
Dependencies are inferred from the claim text.