Patent ID: 8734268
Filing Date: 2014-05-27
Classification: A63B

Abstract:
1. A golf club shaft having a length of 1050 mm to 1170 mm and having a distribution of flexural rigidities of 1.70≦A3/A2 and 0.60≦A1/A3; wherein a sum of flexural rigidities at positions 150 mm, 200 mm and 250 mm from the front end of the shaft is A1, wherein a sum of flexural rigidities at positions 400 mm, 450 mm and 500 mm from the front end of the shaft is A2, wherein a sum of flexural rigidities at positions 650 mm, 700 mm and 750 mm from the front end of the shaft is A3, and wherein the mass of the shaft is not more than 45 g and flexing thereof is not more than 4.3 kg in terms of a load value based on a three-point support measuring method.