US 12,246,226 B2
Golf club head
Naruhiro Mizutani, Kobe (JP); Daisuke Kohno, Kobe (JP); Hirotaka Nakamura, Kobe (JP); and Jun Kodaka, Kobe (JP)
Assigned to SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed by SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed on Sep. 2, 2022, as Appl. No. 17/902,437.
Claims priority of application No. 2021-144283 (JP), filed on Sep. 3, 2021.
Prior Publication US 2023/0080945 A1, Mar. 16, 2023
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/0412 (2020.08) [A63B 53/0437 (2020.08); A63B 53/0466 (2013.01); A63B 2209/023 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A right-handed golf club head comprising:
a face portion that forms a striking face;
a crown portion that forms a crown outer surface;
a sole portion that forms a sole outer surface;
a hosel portion that is configured to receive a shaft and that defines a shaft axis line, and
a protruding portion disposed on an outer surface of the golf club head, wherein
the striking face has a face center, and a normal line at the face center,
the golf club head has a head width in a face-back direction of greater than or equal to 100 mm,
the golf club head has a head length in a toe-heel direction of greater than or equal to 110 mm,
a state of the golf club head placed in such a manner that the shaft axis line is vertical to a horizontal plane and the normal line is parallel to a first perpendicular plane on which the shaft axis line lies is defined as a 0-degree state,
a direction that is parallel to the first perpendicular plane and is parallel to the horizontal plane is defined as a projection direction,
a projected area of the golf club head projected in the projection direction when the golf club head is rotated by θ° about the shaft axis line toward a back side from the 0-degree state is denoted by WAθ (mm2), θ ranging from 0 to 90,
the projected area is divided by the shaft axis line into two regions,
of the two regions, a left-side region is defined as a first region, and a right-side region is defined as a second region,
an area of the first region is denoted by Afθ (mm2),
an area of the second region is denoted by Abθ (mm2),
a difference (Afθ−Abθ) is denoted by Sθ (mm2),
S90 is less than or equal to −4500 (mm2),
S15 is less than or equal to 4700 (mm2), and
the protruding portion increases Ab90 and does not increase Af15.