Title:
ELEVATOR DIAGNOSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/132484
Kind Code:
A1
Abstract:
The purpose of the invention is to provide an elevator diagnosing device that has a simple configuration and that can more accurately diagnose traction capability. In order to achieve this, an elevator diagnosing device comprises a hoisting device that has a sheave by which the middle portion of a main rope that suspends an elevator car is wound, and a control means for causing the elevator car to travel by controlling operation of the hoisting device, and the control means comprises: a car control means for performing a first traveling control to cause the elevator car to travel at a first acceleration and deceleration and a second traveling control to cause the elevator car to travel at a second acceleration and deceleration that is less than the first acceleration and deceleration; a rope feed difference detection means for detecting the difference in the amount of main rope fed by way of rotation of the sheave when the elevator car is caused to travel for the same distance at the first traveling control and at the second traveling control; and a determination means for determining the traction capability of the sheave on the basis of the difference in the amount of main rope feed detected by the rope feed difference detection means.
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Inventors:
HIDA MASAHIKO (JP)
Application Number:
PCT/JP2015/054457
Publication Date:
August 25, 2016
Filing Date:
February 18, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B5/02; B66B5/00
Foreign References:
| JP2007153547A | 2007-06-21 | |||
| JP2014043291A | 2014-03-13 | |||
| JP2014061967A | 2014-04-10 | |||
| JP2010089869A | 2010-04-22 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
Takada 守 (JP)
Takada 守 (JP)
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