US 12,434,446 B2
Foldable FRP plate and manufacturing method thereof
Lichen Wang, Tianjin (CN)
Assigned to TIANJIN UNIVERSITY, Tianjin (CN)
Filed by TIANJIN UNIVERSITY, Tianjin (CN)
Filed on Sep. 2, 2022, as Appl. No. 17/902,636.
Claims priority of application No. 202210055398.3 (CN), filed on Jan. 18, 2022.
Prior Publication US 2023/0226778 A1, Jul. 20, 2023
Int. Cl. B29C 70/22 (2006.01); B05D 1/32 (2006.01); B29C 53/00 (2006.01); B29C 53/04 (2006.01); B29C 70/34 (2006.01); B29K 277/00 (2006.01); B29K 307/04 (2006.01); B29K 309/00 (2006.01); B29K 309/08 (2006.01); B29L 31/10 (2006.01); B31D 5/04 (2017.01); C08J 5/24 (2006.01); E04H 9/02 (2006.01)
CPC B29C 70/22 (2013.01) [B05D 1/32 (2013.01); B29C 53/005 (2013.01); B29C 53/04 (2013.01); B29C 70/34 (2013.01); B31D 5/04 (2013.01); C08J 5/24 (2013.01); B29K 2277/10 (2013.01); B29K 2307/04 (2013.01); B29K 2309/08 (2013.01); B29K 2309/14 (2013.01); B29K 2313/00 (2013.01); B29L 2031/10 (2013.01); C08J 2363/00 (2013.01); E04H 9/021 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A foldable FRP plate, wherein
the FRP plate divides fiber woven fabric into six first regions (101), (102), (103), (104), (105) and (106) and six second region (201), (202), (203), (204), (205) and (206) according to an origami design method;
the fiber woven fabric of each of the first regions (101), (102), (103), (104), (105) and (106) is impregnated with resin for curing, and fiber woven fabric of each of the second regions (201), (202), (203), (204), (205) and (206) is not impregnated with resin and manufacture of the foldable FRP plate after the resin being cured and formed is completed; after curing, each of the first regions is thicker than each of the second regions by smaller than 1 mm, so that a thickness difference between the first regions and the second regions is ignored;
the second region (201) is located between two adjacent the first region (101) and the first region (102);
the second region (202) is located between two adjacent the first region (102) and the first region (103);
the second region (203) is located between two adjacent the first region (103) and the first region (104);
the second region (204) is located between two adjacent the first region (104) and the first region (105);
the second region (205) is located between two adjacent the first region (105) and the first region (106);
the second region (206) is located between two adjacent the first region (106) and the first region (101);
so that the adjacent first regions (101), (102), (103), (104), (105) and (106) being folded and unfolded relative to each other with the each of the second regions (201), (202), (203), (204), (205) and (206) as a rotating shaft;
wherein the each of the first regions (101), (102), (103), (104), (105) and (106) is rigid and cannot be folded;
the each of the second regions (201), (202), (203), (204), (205) and (206) is flexible fiber woven fabric and has a width being two times a design thickness of the FRP plate;
wherein when a designed folding angle formed between the two adjacent first regions (101), (102), (103), (104), (105) and (106) by folding is 150°<α≤180°, the fiber woven fabric is selected from unidirectional fiber woven fabric; and
when the designed folding angle is 90°<α≤150°, the fiber woven fabric is selected from bidirectional fiber woven fabric; and when the designed folding angle is 0°<α≤90°, the fiber woven fabric is selected from multidirectional fiber woven fabric;
wherein the each of the first regions (101), (102), (103), (104), (105) and (106) and the second regions (201), (202), (203), (204), (205) and (206) is respectively in a polygonal shape which is one selected from a group consisting of a square, a rectangle, a parallelogram and a triangle;
wherein the first regions (101), and (104) is the square; and wherein each of the first regions (102), (103), (105) and (106) are triangles.