EP 3947233 A1 20220209 - ASCERTAINING THE STATE OF A SUSPENSION MEANS
Title (en)
ASCERTAINING THE STATE OF A SUSPENSION MEANS
Title (de)
ZUSTANDSERMITTLUNG EINES TRAGMITTELS
Title (fr)
DÉTERMINATION DE L'ÉTAT D'UN MOYEN DE SUSPENSION
Publication
Application
Priority
- EP 2020057075 W 20200316
- EP 19166107 A 20190329
Abstract (en)
[origin: WO2020200727A1] The invention relates to a method and an apparatus 21 for monitoring the physical state of a suspension means 23 which is connected to an elevator cabin 11 and can move the latter. Along its length, the suspension means 23 comprises markings 25 which divide the suspension means 23 into segments S1, S2, Sn. According to the invention, it is possible to monitor the strain difference Δε of the suspension means 23 segment-by-segment by using a signal processing unit 31 to ascertain, from a distance between two selected markings 25 detected by a detection device 29, a first strain ε1 at a first load F and a second strain ε2 at a second load 2, and to calculate a strain difference Δε representing the elastic behavior of the segment S1, S2, Sn from the two strain values ε1, ε2, wherein the load F<u> 1 </u>, F2 acting on the suspension means 23 between the two selected markings 25 can be measured by means of a load measuring device 33.
IPC 8 full level
B66B 7/12 (2006.01)
CPC (source: EP KR US)
B66B 3/002 (2013.01 - US); B66B 7/1215 (2013.01 - EP KR US); B66B 7/1238 (2013.01 - EP)
Citation (search report)
See references of WO 2020200727A1
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)
WO 2020200727 A1 20201008; CN 113544074 A 20211022; CN 113544074 B 20221018; EP 3947233 A1 20220209; EP 3947233 B1 20230215; ES 2939731 T3 20230426; KR 20210145730 A 20211202; US 2022185628 A1 20220616
DOCDB simple family (application)
EP 2020057075 W 20200316; CN 202080019472 A 20200316; EP 20710179 A 20200316; ES 20710179 T 20200316; KR 20217028401 A 20200316; US 202017593040 A 20200316