Patent ID: 7211005
Filing Date: 2007-05-01
Classification: A63B

Abstract:
1. A golf club comprising a shaft and a club head, the shaft having a longitudinal axis and a tip-end attached to the club head, and the club head having a center of mass, a heel-toe axis through the center of mass and a radius of gyration K millimeters about the heel-toe axis, wherein the attachment of the tip-end of the shaft to the club head has compliance about a rotational axis through the center of mass, the rotational axis having a perpendicular orientation to the shaft axis in a plane parallel to the shaft axis and containing the heel-toe axis, and wherein the compliance is not less than the force-couple bending compliance of a length of 1000/K millimeters of the shaft measured from the tip-end, and the rotational axis is spaced by less than 0.33K millimeters from the shaft axis.