EP 0073733 B1 19850529 - GRID-LIKE GIRDER FOR THE SUPPORT OF UNDERGROUND GALLERIES AND SHAFTS
Title (en)
GRID-LIKE GIRDER FOR THE SUPPORT OF UNDERGROUND GALLERIES AND SHAFTS
Publication
Application
Priority
DE 8125375 U 19810901
Abstract (en)
[origin: EP0073733A1] 1. Lattice girder for underground panel lining and shaft lining, with three parallel chord members (1, 2 and 3), which in cross-section form a triangle, being spatially fixed to one another by means of strengthening elements (4), characterised in that each strengthening element (4) consists integrally of a profiled bar bent into two triangles (5 and 6) inclined towards one another and running towards the chords members (1, 2 and 3), and that the corners of the triangles (5 and 6) are welded from the inside to the chord members (1, 2 and 3).
IPC 1-7
IPC 8 full level
E21D 11/10 (2006.01); E21D 11/18 (2006.01)
CPC (source: EP)
E21D 11/107 (2013.01); E21D 11/18 (2013.01)
Citation (examination)
DE 2951874 A1 19800703 - EVG ENTWICKLUNG VERWERT GES
Designated contracting state (EPC)
AT BE CH DE IT LI
DOCDB simple family (publication)
EP 0073733 A1 19830309; EP 0073733 B1 19850529; AT E13577 T1 19850615; DE 3263900 D1 19850704; DE 8125375 U1 19820121
DOCDB simple family (application)
EP 82810334 A 19820809; AT 82810334 T 19820809; DE 3263900 T 19820809; DE 8125375 U 19810901