EP 0073733 A1 19830309 - Grid-like girder for the support of underground galleries and shafts.
Title (en)
Grid-like girder for the support of underground galleries and shafts.
Title (de)
Gitterträger für den Untertag-Strecken- und Schachtausbau.
Title (fr)
Poutre en forme de treillis pour le soutènement de galeries et puits souterrains.
Publication
Application
Priority
DE 8125375 U 19810901
Abstract (en)
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).
Abstract (de)
Der Gitterträger wird verwendet für den Untertag-Strecken- und Schachtausbau. Er besteht aus drei parallelen Gurtstäben (1, 2, 3), die im Querschnitt ein Dreieck bilden, und die mittels innerer Versteifungselemente (4) räumlich zueinander fixiert sind. Jedes Versteifungselement (4) ist einstückig aus einem mehrfach gebogenen Profilstab geformt. Die Versteifungselemente sind von innen an die Gurtstäbe (1, 2, 3) angeschweisst.
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 (search report)
- [Y] DE 1608527 B1 19700521 - KLOENNE AUG FA
- [Y] DE 1953348 A1 19710506 - BAYER AG
- [Y] DE 1990316 U
- [Y] DE 6807538 U 19690506 - S H HEYWOOD & COMPANY LTD [GB]
- [Y] DE 8020051 U1 19801106
- [Y] AT 253183 B 19670328 - AVI ALPENLAENDISCHE VERED
- [Y] CH 547410 A 19740329 - BAUSTOFF & HANDELS AG
- [Y] FR 1098003 A 19550715
- [Y] GB 816059 A 19590708 - FRITZ GREBNER
- [Y] GB 1479435 A 19770713 - RHEINISCHE FILIGRANBAU GMBH CO
- [Y] US 2140313 A 19381213 - DELLENBARGER CHARLES E, et al
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