Sheet bending method and sheet

B - Operations – Transporting – 21 – D

Patent

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B21D 28/00 (2006.01)

Patent

CA 2590225

A sheet of material formed for bending along a bend line including a sheet of material (30) includes a plurality of dividing slits (37) and a plurality of strap slits (39) formed therethrough. The dividing slits extending substantially along a desired bend line (35) and divide the sheet of material into first and second planar regions (32, 33). The strap slits intersect the desired bend line and adjacent pairs of strap slits form a bending strap therebetween. The bending strap has a longitudinal strap axis intersecting the desired bend line. The sheet of material may be formed of composite materials. A method of forming and using the sheet of material is also disclosed.

L'invention concerne une feuille de matériau formée par courbure le long d'une ligne de courbure comprenant une feuille de matériau (30) comprenant une pluralité de fentes de division (37) et une pluralité de fentes (39) sous forme de bande. Les fentes de division s'étendant sensiblement le long d'une ligne de courbure (35) souhaitée divisent la feuille de matériau en une première et une seconde région planaire (32, 33). Les fentes en forme de bande croisent la ligne de courbure souhaitée et des paires adjacentes de fentes sous forme de bande pour former une bande courbée. La fente ainsi courbée présente un axe de bande longitudinal qui croise la ligne de courbure souhaitée. La feuille de matériau peut être formée en matériaux composites. L'invention concerne un procédé pour former et utiliser la feuille de matériau.

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