EP 2578768 A3 20170524 - Foldable stairs especially of 4 segments
Title (en)
Foldable stairs especially of 4 segments
Title (de)
Zusammenklappbare Treppe insbesondere aus 4 Segmenten
Title (fr)
Escalier repliable notamment en 4 segments
Publication
Application
Priority
PL 39656211 A 20111006
Abstract (en)
[origin: EP2578768A2] The stairs have a safety device ( 3 ) for protection against uncontrolled detachment of at least two last segments from the first segment ( 11 ) by rotation on the hinges ( 21 ), which mechanism is positioned near the top ends of the segments, beneficially overlaid on the extension hinge ( 23 ) that joins together segments 2 ( 12 ) and 3 ( 13 ). The safety device ( 3 ) is unlatched by the user lifting the bottom parts of segments 3 ( 13 ) and 4 ( 14 ). Also, the stairs have a bottom lock ( 6 ) installed on the hinge ( 22 ) that joins together segments 3 ( 13 ) and 4 ( 14 ).
IPC 8 full level
E04F 11/06 (2006.01)
CPC (source: EP)
E04F 11/064 (2013.01)
Citation (search report)
- [A] WO 2005017281 A1 20050224 - WERNER CO [US], et al
- [A] US 2005028320 A1 20050210 - LATIMER BRETT A [US], et al
- [A] US 2006076187 A1 20060413 - MEZA MARIA E [US]
- [A] FR 1490697 A 19670804
- [A] DE 943554 C 19560524 - WILHELM DOHRMANN
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)
EP 2578768 A2 20130410; EP 2578768 A3 20170524; EP 2578768 B1 20190911; CN 103104075 A 20130515; PL 220639 B1 20151130; PL 396562 A1 20130415
DOCDB simple family (application)
EP 12006941 A 20121005; CN 201210377452 A 20121008; PL 39656211 A 20111006