Patent ID: 7070512

Claim:
A golf club comprising a club shaft and a wood-type hollow club head, the club head having a loft angle of from 14 to 18 degrees, a head volume of not less than 250 cc, and a sweet spot at a vertical distance of from 1 to 5 mm downwards of a face center, and the club shaft having a tip end connected to the club head and a butt end on which a grip is disposed, and having a variable flexural rigidity with a minimum in a range of from 5 to 10 N·m 2 , wherein the minimum flexural rigidity occurs in a range between 10% and 30% of the length of the club shaft from the tip end of the club shaft, and wherein the flexural rigidity progressively increases from the position of the minimum flexural rigidity toward the tip end and the butt end such that the flexural rigidity at the tip end becomes more than 20 N·m 2 and the flexural rigidity at the butt end becomes less than 60 N·m 2 , and a part where the flexural rigidity is less than 10 N·m 2 extends at least 10% of the shaft length.