Foldable FRP plate and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-12434446-B2
Application number	US-202217902636-A
Country	US
Kind code	B2
Filing date	Sep 2, 2022
Priority date	Jan 18, 2022
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

The present invention discloses a foldable FRP plate, comprising a plurality of first regions and one or a plurality of second regions which are integrated in one piece; the second region is located between two adjacent first regions, so that the adjacent first regions being folded and unfolded relative to each other with the second region as a rotating shaft; the first regions are plate-like products manufactured by impregnating fiber woven fabric with resin for curing, are rigid and cannot be folded; the second region is flexible fiber woven fabric and has a width being two times a design thickness of the FRP plate. The present invention also discloses a manufacturing method, including laying the fiber woven fabric according to a design thickness and a layer layout; dividing the first regions and the second region according to an origami design method.

First claim

What is claimed is:

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.

2. The foldable FRP plate according to claim 1 , wherein the fiber woven fabric is selected from any one of a group consisting of: carbon fiber fabric, glass fiber fabric, aramid fiber fabric and a basalt fiber reinforced polymer.

3. A manufacturing method for the foldable FRP plate according to claim 1 , comprising the steps of:
laying the fiber woven fabric according to a design thickness and a layer layout; dividing the fiber woven fabric into first regions ( 101 ), ( 102 ), ( 103 ), ( 104 ), ( 105 ) and ( 106 ) and the second region ( 201 ), ( 202 ), ( 203 ), ( 204 ), ( 205 ) and ( 206 ) according to an origami design method, and setting sizes of a plurality of first regions ( 101 ), ( 102 ), ( 103 ), ( 104 ), ( 105 ) and ( 106 ) and the second region(s) ( 201 ), ( 202 ), ( 203 ), ( 204 ), ( 205 ) and ( 206 ) according to a design layout, wherein a width of the second region ( 201 ), ( 202 ), ( 203 ), ( 204 ), ( 205 ) and ( 206 ) is equal to two times of a design thickness of the plate; and
impregnating fiber woven fabric of each first region ( 101 ), ( 102 ), ( 103 ), ( 104 ), ( 105 ) and ( 106 ) with resin for curing, not impregnating fiber woven fabric of the second region(s) ( 201 ), ( 202 ), ( 203 ), ( 204 ), ( 205 ) and ( 206 ) with the resin, and completing manufacturing of the foldable FRP plate after the resin being cured and formed.

Assignees

• Univ Tianjin

Inventors

• Wang Lichen

Classifications

• B29C53/005

  characterised by the choice of material (B29C53/36 and B29C53/56 take precedence) · CPC title

• B05D1/32

  using means for protecting parts of a surface not to be coated, e.g. using stencils, resists · CPC title

• B29C53/04

  of plates or sheets {(B29C63/04 takes precedence; bending or folding paper B31F1/0003; folding films B65H45/00)} · CPC title

• B31D5/04

  including folding or pleating, e.g. Chinese lanterns · CPC title

• B29K2313/00

  Use of textile products or fabrics as reinforcement (B29K2105/06 takes precedence) · CPC title