Patent ID: 9561408
Date: 2017-02-07
CPC Classifications: A63B

Claim:
1. A golf club head, comprising: a crown defining an upper surface of the golf club head; a sole defining a lower surface of the golf club head; a side wall extending between the crown and sole; a hosel extending from the crown and including a shaft bore; a face defining a ball-striking surface and intersecting the lower surface at a leading edge; and a flexure that is a tubular member interposed between a face portion and a rear body portion of the golf club head so that it forms an intermediate ring that is spaced aftward of the ball-striking surface, wherein the sole is constructed of a first material having a first Young's modulus and the flexure is constructed of a second material having a second Young's modulus that is lower than the first Young's modulus, wherein the flexure is tuned so that the width across the flexure in a face-to-aft direction varies sinusoidally, immediately after impact, at a frequency of about 2900 Hz to about 4000 Hz, and wherein at least a portion of the flexure is constructed of a β-Ti alloy.