CPC A63B 53/0466 (2013.01) [A63B 53/0408 (2020.08); A63B 53/0433 (2020.08); A63B 53/0437 (2020.08)] | 17 Claims |
1. A golf club head comprising:
a club face for striking a ball,
a crown forming an upper surface of the golf club head,
a toe portion,
a heel portion, and
a hosel having a shaft insertion hole defining a shaft axis centerline of the club head, wherein
the club face comprises a face center,
the crown comprises a first portion being adjacent to the club face, and a second portion being located backwardly of the first portion and connected to the first portion,
the second portion is located below the first portion via a step portion,
the first portion comprises a face-vicinity portion extending in a toe-heel direction along the club face, and a heel-vicinity portion connected to a heel-side end portion of the face-vicinity portion and extending backwardly of the golf club head along a heel-side contour of the crown,
in a reference state in which the club head is placed on a horizontal plane with a lie angle and a loft angle of the club head, and the shaft axis centerline is arranged within a reference vertical plane perpendicular to the horizontal plane, and in a plan view of the golf club head which is a top view perpendicular to the horizontal plane,
the step portion comprises a first step portion extending from a toe-side end thereof toward a heel-side end thereof in the toe-heel direction, and a second step portion extending backwards smoothly in a curved manner from a first position located on a heel side with respect to the face center to a back-side end of the heel-vicinity portion,
the club head has a maximum length (B) that is a maximum length of the club head in a head front-back direction perpendicular to the reference vertical plane,
the club head has a leading edge that defines a front-end point of the maximum length (B),
the club head has a length (A) in the head front-back direction from the leading edge to a back-side end of the heel-vicinity portion which is an end located most backward position of the second step portion, and the length (A) is equal to or more than 70% of the maximum length (B) of the golf club head, and
in the plan view of the golf club head, the back-side end of the heel-vicinity portion is located on a toe side in the toe-heel direction with respect to the first position.
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