Golf club shaft
AssigneeTaylor Made Golf Company, Inc.
InventorsJoseph Morell, Jean-Marc Banchelin
Life of this patent
Estimating the term…
Abstract
Tubular golf club shaft made from composite materials comprising layers of fibers impregnated with plastic resin and provided over its length with at least one are of enlargement (6) and or narrowing. The curve of generation of the internal diameter of the shaft as a function of its length beginning at the point of the smallest internal diameter and extending to at least one of the ends of the shaft incorporates at least one decreasing portion.
Claims17
A tubular golf club shaft made of composite materials comprising layers of fibers impregnated with plastic resin wherein a curve of generation of a diameter of said shaft as a function of length beginning at a point of smallest diameter and extending toward a first end of the shaft incorporates at least one area of narrowing the area of narrowing having a decreasing portion preceding an increasing portion, the slope of the increasing portion being greater than an average slope of the curve external of the area of narrowing, and a filling ring at least partially surrounds said at least one area of narrowing, the filling ring being formed separately from the shaft.
A tubular golf club shaft comprising:
- a handgrip portion defined adjacent a proximal end;
- a narrowed portion distal of the handgrip portion;
- a transition portion on either end of the narrowed portion;
- a tapered portion distal of the narrowed portion;
- and
- a filling ring surrounding at least a portion of the narrowed portion, the filling ring being formed separately from the shaft;
- wherein a slope of each transition portion has a greater magnitude than an average slope of the tapered portion.
Dependencies are inferred from the claim text.