GOLF CLUB HEAD

摘要

A cavity back iron type club head includes a striking plate having a substantially planar striking surface and a rear surface defining a thickness therebetween. The rear surface defines a striking plate rear cavity region. A perimeter support is coupled to a peripheral portion of the striking plate. The surface area of the striking surface is related to the club head loft angle by the equation SSA≧14.4(L)+2875, where SSA is the surface area of the striking surface in units of square-millimeters and L is the club head loft angle in units of degrees.

主权项

1. A cavity back iron type club head having a prescribed loft angle, the club head comprising:
a striking plate having a substantially planar striking surface, a rear surface, and a striking plate thickness, the rear surface defining a striking plate rear cavity region; wherein the striking plate thickness is defined as a thickness between a selected point on the striking surface and the rear surface along an axis perpendicular to the striking surface; an unsupported striking plate area defined as the portion of the striking plate rear cavity region lacking a backing support structure having a modulus of elasticity greater than about 25 GPa; an unsupported area ratio defined as a ratio of the unsupported striking plate area to the surface area of the striking surface; wherein an average striking plate thickness within the striking plate rear cavity region is less than about 2.2 mm; wherein the unsupported striking plate area is greater than about 2572 mm2, and the loft angle ranges from 22.5 degrees to 34.5 degrees.