초록 ▼

Presented is a golf shaft designed to have a “kick”point or “flex”zone at a predetermined location along the length of the shaft. How and where the shaft bends or flexes during the down swing has a strong influence on how the club “feels”to the golfer. How and where the shaft bends during the down s

Presented is a golf shaft designed to have a “kick”point or “flex”zone at a predetermined location along the length of the shaft. How and where the shaft bends or flexes during the down swing has a strong influence on how the club “feels”to the golfer. How and where the shaft bends during the down swing is determined by the construction of the golf shaft and presented herewith is a golf shaft structure and method of making it which controls the position of the flex point along the length of the shaft so that a variety of shafts having different flex characteristics may be manufactured to suit the dictates of individual players.

대표청구항 ▼

A golf club comprising: (a) a club head; and (b) an elongated tubular shaft having a relatively large diameter grip end tapering to a relatively smaller diameter head end attached to said club head, (c) said tubular shaft being formed as one composite member solely from at least two different kinds

A golf club comprising: (a) a club head; and (b) an elongated tubular shaft having a relatively large diameter grip end tapering to a relatively smaller diameter head end attached to said club head, (c) said tubular shaft being formed as one composite member solely from at least two different kinds of non-woven filamentary material, one of said filamentary materials having a relatively low modulus of elasticity and constituting solely said relatively larger diameter grip end of the shaft while the other filamentary material has a relatively significantly higher modulus of elasticity and constituting solely the remainder of the shaft, said relatively larger diameter grip end shaft portion formed from relatively low modulus of elasticity filaments having a relatively higher degree of flexibility than the remainder of said shaft formed from said filamentary material having said higher modulus of elasticity so as to form a hinge point at the intersection of said high and low modulus portions of said shaft, said filamentary material being embedded in heat-hardenable synthetic resinous material and including two portions connected end-to-end in overlapping relationship and bonded together to form a continuous elongated tubular shaft of finite length, each of said two portions including a plurality of layers of said filamentary material.