Golf club

摘要

A club 2 includes a head 4, a shaft 6 and a grip 8. A club length L1 is 45 inches or greater and 48 inches or less. A ratio (Wh/Wc) of a head weight Wh to a club weight Wc is equal to or greater than 0.71. A moment of inertia Ix about an axis of a swing is equal to or less than 6.90×103 (kg·cm2). However, when the club weight is defined as Wc (kg); an axial-directional distance between a grip end and a center of gravity of the club is defined as Lc (cm); and a moment of inertia about the center of gravity of the club is defined as Ic (kg·cm2), the moment of inertia Ix (kg·cm2) is calculated by the following formula (1).
Ix=Wcx(Lc+60)2+Ic  (1)

主权项

1. A golf club comprising: a head; a shaft having a butt and a tip end; and a grip having a grip end at shaft butt end, and a center of gravity,
wherein the golf club has a club length which is 45 inches or greater and 48 inches or less; the golf club has a head weight Wh and a club weight Wc in a ratio (Wh/Wc) which is equal to or greater than 0.71; the golf club has a moment of inertia Ix about an axis of a swing which is equal to or less than 6.90×103 (kg·cm2); and if the club weight is defined as Wc (kg); an axial-directional distance between the grip end and the center of gravity of the club is defined as Lc (cm); and a moment of inertia about the center of gravity of the club is defined as Ic (kg·cm2), then the moment of inertia Ix (kg·cm2) is calculated by the following formula (1):
Ix=Wc×(Lc+60)2+Ic  (1).