EP 3839190 A1 20210623 - FIRE DOOR
Title (en)
FIRE DOOR
Title (de)
BRANDSCHUTZTÜR
Title (fr)
PORTE COUPE-FEU
Publication
Application
Priority
IT 201900024277 A 20191217
Abstract (en)
The present invention relates to a fire door (1) comprising: - a load-bearing structure (10) which is defined by two metal sheets (2, 3), which are folded and coupled together around the perimeter, so as to delimit a closed cavity (4) therebetween and inside said load-bearing structure, said two metal sheets (2, 3) defining an inner face and an outer face, respectively, of said fire door (1); - fire-retardant thermal insulation material (9) arranged as filler inside said closed cavity (4); - one or more stiffening elements (11, 12) arranged inside said cavity (4) to counteract thermal deformations induced on said load-bearing structure (10) by a thermal gradient between said inner face and said outer face; - two or more hinges (6) suitable to connect said fire door (1) to a fixed support frame (5) and arranged at a first vertical perimeter side (10a) of said load-bearing structure (10); - a lock (7) suitable to lock said fire door (1) closed to said fixed frame (5) and arranged at a second vertical perimeter side (10b) of said load-bearing structure (10), opposite to the first vertical side (10a). The aforesaid one or more stiffening elements (11, 12) consist of elongated bodies having a prevailing longitudinal direction of extension (X1, X2), arranged along one or more perimeter sides of said load-bearing structure (10) and are made of austenitic or austenitic-ferritic stainless steel. Said stiffening elements (11, 12) are arranged along only one or both the following sides of said load-bearing structure (10): - said second vertical perimeter side (10b) opposite to the first vertical perimeter side (10c); - an upper horizontal side (10c) connecting said two vertical sides (10a; 10b).
IPC 8 full level
E06B 5/16 (2006.01); E06B 3/263 (2006.01)
CPC (source: EP)
E06B 3/263 (2013.01); E06B 3/827 (2013.01); E06B 5/16 (2013.01); E06B 2003/7042 (2013.01); E06B 2003/7078 (2013.01)
Citation (search report)
- [I] US 4888918 A 19891226 - GREEN F RICHARD [US], et al
- [A] DE 19651699 C1 19980115 - SCHROEDERS THEO [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 20213928 A 20201214; IT 201900024277 A 20191217