Two piece metallic and composite golf shaft

作者: J. Benedict Pompa

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摘要: A two piece metallic and composite golf shaft utilizing metal for the construction of its lower tip section, fiber/resin upper butt creating a hybrid which retains major characteristic advantages these materials, while being largely free their respective disadvantages; consisting tubular comprising approximately one-third total length, having parallel or tapered sides, plurality diametrally expanding steps at terminal end where it joins section larger diameter, telescopingly fits into is bonded to inside wall last elongated step junction between sections flush, from whence progressively tapers outwardly end.

参考文章(6)
Koi Inoue, Tube for fishing rod ,(1985)
John J. Gall, Kenneth E. Branen, Laminated composite golf club shaft ,(1977)
Hideaki Kawamatsu, Set of golf clubs ,(1986)
Inoue Goi, TUBE FOR FISHING ROD ,(1989)