Title:
FIBER STRUCTURE AND FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/198619
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a fiber structure and a fiber-reinforced composite material with which it is possible to suppress variations in fiber density while increasing productivity. A spiral woven fabric of the present invention comprises, in a plan view, a circular inner-edge portion (12a) and a circular outer-edge portion (12b) longer than the inner-edge portion (12a). Warps (13) are twisted yarn obtained by twisting a fiber bundle. In the spiral woven fabric, a direction in which a straight line connecting the inner-edge portion (12a) and the outer-edge portion (12b) at a shortest distance extends is referred to as a radial direction (Y). In the spiral woven fabric, the number of twists of the warp (13) positioned at the inner-edge portion (12a) is smaller than the number of twists of the warp (13) positioned at the outer-edge portion (12b). Further, in the spiral woven fabric, of the warps (13) adjacent to each other in the radial direction, the warp (13) closer to the outer-edge portion (12b) has a greater number of twists.
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Inventors:
KAWAHARA MARI (JP)
TSUJI RYOHEI (JP)
HORI FUJIO (JP)
SUZUKI HIROYUKI (JP)
TSUJI RYOHEI (JP)
HORI FUJIO (JP)
SUZUKI HIROYUKI (JP)
Application Number:
PCT/JP2019/015037
Publication Date:
October 17, 2019
Filing Date:
April 04, 2019
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
D03D3/08; B29B11/16; B29C70/10
Foreign References:
| JPH03504401A | 1991-09-26 | |||
| JPS5673138A | 1981-06-17 | |||
| JP2015030959A | 2015-02-16 |
Attorney, Agent or Firm:
SATO Tsutomu et al. (JP)
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