EP 0942144 A3 20000607 - Modular step unit for prefabricated self-supporting ladders and a self-supporting ladder made thereby
Title (en)
Modular step unit for prefabricated self-supporting ladders and a self-supporting ladder made thereby
Title (de)
Modulare Trittstufe für vorgefertigte selbsttragende Leitern, und damit hergestellte selbsttragende Leiter
Title (fr)
Marchepied modulaire pour échelles préfabriquées autoportantes et échelle ainsi obtenue
Publication
Application
Priority
IT VI980052 A 19980312
Abstract (en)
[origin: EP0942144A2] A modular step unit for self-supporting metal ladders comprises a pair of side supporting or bearing constructions (3, 3', 3'') supporting a flat ladder step (4, 4'). Connecting means (9) connect each modular unit to an adjoining modular unit for defining a self-supporting ladder ramp (1). Each supporting construction (3, 3', 3'') comprises at least a substantially vertical inner element (5) arranged between and rigidly coupled to at least a pair of substantially horizontal outer elements (6). The inner element (5) can be coupled to at least a pair of outer elements (6) including in an adjoining modular unit (3) by a coupling device (15) the height of which can be adjusted to provide a variable height or rise ladder ramp. <IMAGE>
IPC 1-7
IPC 8 full level
E04F 11/035 (2006.01); E04F 11/09 (2006.01); E06C 1/10 (2006.01); E06C 7/08 (2006.01)
CPC (source: EP)
E04F 11/035 (2013.01); E04F 11/1041 (2013.01); E06C 1/10 (2013.01); E06C 7/08 (2013.01)
Citation (search report)
- [XAY] EP 0128880 A2 19841219 - LISSIDINI SANDRO
- [DYA] DE 3505688 C2 19871022
- [YA] EP 0733774 A1 19960925 - MASTELLA RENATO [IT], et al
- [A] DE 8913058 U1 19891214
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0942144 A2 19990915; EP 0942144 A3 20000607; EP 0942144 B1 20040804; AT E272784 T1 20040815; DE 69919053 D1 20040909; DE 69919053 T2 20050728; ES 2226218 T3 20050316; IT VI980052 A1 19990912
DOCDB simple family (application)
EP 99104783 A 19990310; AT 99104783 T 19990310; DE 69919053 T 19990310; ES 99104783 T 19990310; IT VI980052 A 19980312