Fireproof roller curtain

Abstract

The subject of the application is a fire-resistant rolling curtain with a flexible casing, intended for closing a communication opening with linear transport elements in the form of rails, conveyor belts, pipelines, cables or other wires extending across the opening and protruding above its base. The fire-resistant rolling curtain with a flexible casing, the upper edge of which is attached to a rotating winding shaft mounted in a housing attached to the lintel of the communication opening to be closed, and the side edges of the casing are slidably placed in fixed, vertical grooved guides with sealing elements, comprising a rigid sealing plate (13), which in the closed state of the curtain adheres to the base (8) of the communication opening (6), across which at least one linear transport element (9a) extends, protruding above its base (8), wherein the sealing plate (13) has at least one open downwards,a transverse recess (20) surrounding a linear transport element (9a) protruding above the substrate (8) of the communication opening (6) and whose transverse outline is adapted to the profile of the linear transport element (9a), characterized in that on the inner, peripheral surface of each of the recesses (20) of the sealing plate (13) a coating of a material swelling under the influence of a temperature increase is formed,