BULLET-PROOF ROLLER SHUTTERS Russian patent published in 2020 - IPC E06B9/00 

FIELD: construction.

SUBSTANCE: invention relates to design of bullet-proof roller shutters (louvres) and, in particular, can be used in design of bullet-proof collapsible doors, which roll as louvres or roller shutters. Bulletproof shutters include vertical guides, a drum with a drive for winding the web, which consists of hollow lamellae in the form of a flattened profile with hooks and an inner cavity, in which there is a metal insert made of steel with hardness in range of 40–60 HRC, and the distance from the lower edge of the lamellae to the lower hook is 5–30 % of the width of the lamellae.

EFFECT: technical result, which is achieved when realizing the present invention, is to produce roller blinds having given bulletproof properties over their entire area by providing reliable coverage of the entire protected area with armour inserts.

1 cl, 1 dwg, 2 tbl