EP 3495302 A1 20190612 - ELEVATOR APPARATUS AND METHOD
Title (en)
ELEVATOR APPARATUS AND METHOD
Title (de)
AUFZUGVORRICHTUNG UND -VERFAHREN
Title (fr)
APPAREIL ET PROCÉDÉ D'ASCENSEUR
Publication
Application
Priority
EP 17206184 A 20171208
Abstract (en)
The invention relates to an elevator apparatus (1), comprising: a drive unit (3), at least a first and a second brake (11, 12), and a control arrangement (10) controlling operation of the hoisting machine (2) and the at least first and second brake (11, 12). In order to test the brakes, the the control arrangement (10) is configured to test operation of the at least the first and second brake (11, 12) in turns during normal operation runs of the elevator car by triggering only one (11) of the at least first and second brakes (11, 12) to brake, decreasing a force (F) provided from the drive unit (3), monitoring movement of the elevator car (4), and triggering an indication of a failed brake (11) in case movement of the elevator car (4) is detected while the triggered brake (11) brakes.
IPC 8 full level
B66B 5/00 (2006.01)
CPC (source: EP)
B66B 5/0037 (2013.01); B66B 5/0031 (2013.01)
Citation (search report)
- [XA] WO 2007020325 A2 20070222 - KONE CORP [FI], et al
- [A] EP 3138801 A1 20170308 - KONE CORP [FI]
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 3495302 A1 20190612; EP 3495302 B1 20200219; CN 109896381 A 20190618; CN 109896381 B 20220503; ES 2779768 T3 20200819
DOCDB simple family (application)
EP 17206184 A 20171208; CN 201811485883 A 20181206; ES 17206184 T 20171208