초록

A golf club shaft having a hollow body comprised of a fiber and resin composite and a tube-shaped stiffener substantially surrounding a lower portion of the body which comprises a material other than a fiber and resin composite. The stiffener is preferably a metal and comprises a pre-formed sheath.

대표청구항 ▼

[ What we claim:] [1.] A hollow golf club shaft of circular cross section comprising:a fiber and resin-base hollow body extending substantially the entire length of the shaft from a large butt end to a smaller tip end; anda lower tubular member surrounding said hollow body along a lower covered port

[ What we claim:] [1.] A hollow golf club shaft of circular cross section comprising:a fiber and resin-base hollow body extending substantially the entire length of the shaft from a large butt end to a smaller tip end; anda lower tubular member surrounding said hollow body along a lower covered portion of said hollow body which extends substantially from the tip end to an upper end situated below the median point of the shaft, the remainder of the hollow body constituting a free upper portion of the hollow body, at said upper end, the lower covered portion of said hollow body comprises a short flared portion having an outer surface flaring progressively and locally with respect to the general variation of the hollow body; and said tubular member having complementary locally flared portion comprising an inner surface in engagement which the outer surface of said flared portion of said hollow body.