Patent ID: 9555299
Date: 2017-01-31
CPC Classifications: A63B

Claim:
1. An iron-type golf club head comprising an upper heel-side region having an average specific gravity ρ1, a lower heel-side region having an average specific gravity ρ2, an upper middle region having an average specific gravity ρ3, a lower middle region having an average specific gravity ρ4, an upper toe-side region having an average specific gravity ρ5 and a lower toe-side region having an average specific gravity ρ6 which satisfy the following conditions (1) to (7): and which regions are sectioned by an upper horizontal plane, a toe-side vertical plane and a heel-side vertical plane, wherein in a standard state of the club head set on a horizontal plane at a lie angle and a loft angle specified for the club head, the upper horizontal plane is positioned 17 mm above the horizontal plane, the toe-side vertical plane extends parallel with a front-back direction of the club head at a position 15 mm toward the toe from a club face center, and the heel-side vertical plane extends parallel with a front-back direction of the club head at a position 15 mm toward the heel from the club face center.