Fireproof roller curtain

Abstract

The subject of the application is a fire-resistant rolling curtain with a flexible casing, intended to close a communication opening with linear transport elements in the form of rails, conveyor belts, pipelines, cables or other wires spread across the opening and protruding above its base.A fire-resistant rolling curtain with a flexible casing, which is attached by its upper edge to a rotating winding shaft mounted in a housing attached to the lintel of a closed communication opening, and the side edges of the casing are slidably placed in fixed, vertical grooved guides with sealing elements, comprising a movable, rigid, sealing plate (13), which in the unfolded state of the casing (1) is spread longitudinally under its lower edge and adheres to it with its upper surface (14), while the lower surface (15) of the sealing plate (13) adheres to the base (8) of the communication opening, across which at least one linear transport element (9, 9a) is spread, characterized in that on the inner, peripheral surface (21) of each of the recesses (20) of the sealing plate (13) a coating (22) made of a material swelling under the influence of temperature increase is formed.