Title:
CURVED PANEL MEMBER
Document Type and Number:
WIPO Patent Application WO/2021/064870
Kind Code:
A1
Abstract:
This curved panel member comprises a curved metal panel, and a reinforcement member that is joined to the curved panel and that comprises a plurality of FRP layers containing continuous fiber. Each of the plurality of FRP layers has one fiber direction. At least one of the plurality of FRP layers has a fiber direction different to that of the other layers. In the plurality of FRP layers, the proportion of layers in which the angle difference of the fiber direction is 30° or greater is at least 15% of all layers. Relationship (1) is met when, with respect to the respective fiber directions of the FRP layers of the reinforcement member joined to the curved panel, the 0° direction component and the 90° direction component are calculated using a trigonometric function, where 0° is defined as the maximum principle curvature direction of the curved panel and 90° is defined as the direction orthogonal to the 0° direction.
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Inventors:
AITOH TAKAHIRO (JP)
Application Number:
PCT/JP2019/038788
Publication Date:
April 08, 2021
Filing Date:
October 01, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B29C70/22; B32B15/08; B60J5/00; B62D25/02; B62D25/06; B62D25/10; B62D25/16; B62D29/04
Domestic Patent References:
WO2019064909A1 | 2019-04-04 | |||
WO2014034586A1 | 2014-03-06 |
Foreign References:
JP2008230235A | 2008-10-02 | |||
JP2018034664A | 2018-03-08 | |||
JP2004262191A | 2004-09-24 | |||
JPH07165109A | 1995-06-27 | |||
JPS54156084A | 1979-12-08 | |||
US20030189357A1 | 2003-10-09 | |||
JP2001253371A | 2001-09-18 | |||
JP2018016171A | 2018-02-01 | |||
JP2003291232A | 2003-10-14 | |||
JP2008213437A | 2008-09-18 | |||
JP2009166408A | 2009-07-30 |
Other References:
See also references of EP 4023434A4
Attorney, Agent or Firm:
HAGIWARA, Yasushi et al. (JP)
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