EP 1426518 B1 20080430 - Improved tongue and groove in light building panels
Title (en)
Improved tongue and groove in light building panels
Title (de)
Nut und Feder für Leichtbauplatten
Title (fr)
Rainure et languette pour panneaux légers
Publication
Application
Priority
FI 20022157 A 20021205
Abstract (en)
[origin: EP1426518A1] The invention relates to wall or ceiling panels of buildings, comprising a metallic outer surface plate (3a) and a metallic inner surface plate (3b), and heat insulation (6) provided therebetween. The groove (7) of the tongue and groove joint comprises folds (4a, 4b) extending inwards from the surface plates at the panel edge, as outwardly extensions thereof first bends (9a, 9b) and further inwardly first inner flanges (11a, 11b). The tongue (8) comprises bead strips (5a, 5b) extending outwards from the surface plates at the panel edge, as extensions thereof in the inward direction second bends (10a, 10b) and further in the outward direction second inner flanges (12a, 12b). <IMAGE>
IPC 8 full level
E04C 2/292 (2006.01); E04F 13/08 (2006.01)
CPC (source: EP)
E04C 2/292 (2013.01); E04F 13/0876 (2013.01); E04C 2002/004 (2013.01); E04F 2201/07 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated extension state (EPC)
LT LV
DOCDB simple family (publication)
EP 1426518 A1 20040609; EP 1426518 B1 20080430; AT E393858 T1 20080515; DE 60320626 D1 20080612; FI 20022157 A0 20021205; FI 20022157 A 20040606
DOCDB simple family (application)
EP 03396099 A 20031029; AT 03396099 T 20031029; DE 60320626 T 20031029; FI 20022157 A 20021205