EP 2537790 A1 20121226 - ELEVATOR DEVICE
Title (en)
ELEVATOR DEVICE
Title (de)
AUFZUGSVORRICHTUNG
Title (fr)
DISPOSITIF ASCENSEUR
Publication
Application
Priority
JP 2010052519 W 20100219
Abstract (en)
There is provided an elevator device in which the braking capability of a braking device can be measured while the car is being stopped. For this purpose, the elevator device comprising a driving device for driving the up-and-down movement of a car and a counterweight; a main rope that is wound on a sheave of the driving device and hangs the car and counterweight; the braking device for braking the sheave; and a control device for controlling these devices is characterized in that the elevator device includes an encoder for detecting the number of rotation of the sheave; and a brake that is provided in the braking device and has a brake coil that attracts a shoe when being supplied with electric current, and the control device carries out control to change over the operation mode; stops the car by means of the braking device in the state in which the weight is unbalanced between the car side and the counterweight side when the operation mode of elevator is a braking capability checking operation mode; controls the attraction current supplied to the brake coil to gradually release the brake of the braking device; measures the braking capability of the braking device based on the value of attraction current at the time of the start of car movement that is detected via the encoder; and judges that the braking capability of the braking device is abnormal if the braking capability deviates from a predetermined standard.
IPC 8 full level
B66B 5/00 (2006.01)
CPC (source: EP KR)
B66B 1/32 (2013.01 - KR); B66B 5/0037 (2013.01 - EP); B66B 5/02 (2013.01 - KR)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2537790 A1 20121226; EP 2537790 A4 20151202; EP 2537790 B1 20190327; CN 102762481 A 20121031; CN 102762481 B 20141105; JP 5459387 B2 20140402; JP WO2011101978 A1 20130617; KR 101386279 B1 20140417; KR 20120108020 A 20121004; WO 2011101978 A1 20110825
DOCDB simple family (application)
EP 10846115 A 20100219; CN 201080064130 A 20100219; JP 2010052519 W 20100219; JP 2012500430 A 20100219; KR 20127019324 A 20100219