Title:
DEFORMATION DETECTION SYSTEM AND DEFORMATION DETECTION METHOD FOR ELEVATOR GUIDE RAIL
Document Type and Number:
WIPO Patent Application WO/2024/042642
Kind Code:
A1
Abstract:
Provided are a deformation detection system and a deformation detection method that allow for detection of deformation of a guide rail. In the deformation detection system (23), a command unit (24) outputs a speed command corresponding to the speed of a car (10) to a hoisting machine (8). A hoisting machine encoder (13) measures the actual speed corresponding to the speed of the car (10) being moved by the hoisting machine (8) in accordance with the speed command outputted by the command unit (24). A computation unit (25) calculates the speed deviation between the speed command outputted by the command unit (24) and the actual speed measured by the hoisting machine encoder (13) for the car (10). A determination unit (26) determines that the speed deviation is outside an allowable range when the magnitude of the speed deviation calculated by the computation unit (25) is greater than a first threshold value. A detection unit (27) detects deformation of a guide rail (5) on the basis of the determination result from the determination unit (26).
Inventors:
OMORI YOTA (JP)
YAMASAKI SATOSHI (JP)
SAWADA TAKAMITSU (JP)
HASEGAWA TAIRA (JP)
YAMASAKI SATOSHI (JP)
SAWADA TAKAMITSU (JP)
HASEGAWA TAIRA (JP)
Application Number:
PCT/JP2022/031901
Publication Date:
February 29, 2024
Filing Date:
August 24, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP (JP)
International Classes:
B66B5/00; B66B5/02; B66B7/02
Domestic Patent References:
| WO2020026439A1 | 2020-02-06 | |||
| WO2019030888A1 | 2019-02-14 |
Foreign References:
| JP2010202391A | 2010-09-16 | |||
| JP2017165526A | 2017-09-21 | |||
| JP2016222420A | 2016-12-28 |
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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