US 11,724,137 B2
Fire-protection rolling door
Felix Kuster, Düsseldorf (DE); Michael Kahle, Mönchengladbach (DE); and Claus Schwenzer, Möchengladbach (DE)
Assigned to Effertz Tore GmbH, Mönchengladbach (DE)
Appl. No. 17/915,602
Filed by EFFERTZ TORE GMBH, Mönchengladbach (DE)
PCT Filed Mar. 30, 2020, PCT No. PCT/EP2020/058998
§ 371(c)(1), (2) Date Sep. 29, 2022,
PCT Pub. No. WO2021/197571, PCT Pub. Date Oct. 7, 2021.
Prior Publication US 2023/0131519 A1, Apr. 27, 2023
Int. Cl. A62C 2/16 (2006.01); E06B 5/16 (2006.01)
CPC A62C 2/16 (2013.01) [E06B 5/16 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fire-protection rolling door composed of a rolling door armor of profiled plates which are interconnected in an articulated manner, a sheet-shaped intermediate layer of fire-retardant and thermally insulating material, and overlapping cover plates, the rolling door armor being guided in guide rails on both sides and held in an open state above an opening to be closed in the event of fire, wherein the sheet-shaped intermediate layer comprises plate-shaped support segments, each of the plate-shaped support segments being covered on both sides thereof with at least one layer of fire-retardant and thermally insulating material, wherein the plate-shaped support segments are connected to the profiled plates by means of first connecting elements and to the cover plates by means of second connecting elements, wherein the first and the second connecting elements are pin-shaped and wherein the first and the second connecting elements are offset from each other.