Title:
COMPLEX FIBER STRING AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/1994/015015
Kind Code:
A1
Abstract:
This invention relates to a complex fiber string used as a tension member of a PC structure. The characteristics of the present invention reside in that it provides a complex fiber string having a high mechanical strength and produced by heating a thermosetting resin-impregnated fiber core so as to put the thermosetting resin in a semi-hardened state, subjecting the outer circumferential surface of the fiber core to primary wrapping and secondary wrapping with bundled fiber yarn, intertwining a plurality of fiber cores thus obtained, and then heating the intertwined fiber cores so as to harden the semi-hardened thermosetting resin. Another characteristic of the present invention reside in that the bundled fiber yarn for the primary or secondary wrapping of the fiber core is wound therearound in a spaced manner so as to form helical ridges and grooves on the outer circumferential surface of the fiber core, whereby the bonding strength required by a final product as a tension member with respect to a material to which the tension member is to be applied is improved.
Inventors:
Kido
Toshiroh, Nishimura
Yoshifumi, Yamashita
Kenichi, Yamamoto
Susumu, Tanaka
Ikuo
Toshiroh, Nishimura
Yoshifumi, Yamashita
Kenichi, Yamamoto
Susumu, Tanaka
Ikuo
Application Number:
PCT/JP1993/001894
Publication Date:
July 07, 1994
Filing Date:
December 27, 1993
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD
Kido, Toshiroh Nishimura Yoshifumi Yamashita Kenichi Yamamoto Susumu Tanaka Ikuo
Kido, Toshiroh Nishimura Yoshifumi Yamashita Kenichi Yamamoto Susumu Tanaka Ikuo
International Classes:
D02G3/38; D07B1/02; D07B5/00; E04C5/07; E04C5/08; E04C5/12; (IPC1-7): D07B1/02; D07B1/16; D07B7/14
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