Title:
DEVICE FOR TESTING EMERGENCY STOP OF ELEVATOR AND METHOD FOR TESTING EMERGENCY STOP OF ELEVATOR
Document Type and Number:
WIPO Patent Application WO/2024/004122
Kind Code:
A1
Abstract:
Disclosed are a device and a method for testing emergency stop of an elevator, with which it is possible to enhance the reliability or accuracy of an operation check performed on an emergency stop device. This device for testing emergency stop of an elevator comprises: a motor control unit (101) that checks the operating condition of an emergency stop device provided to an elevator and causes a motor installed in a hoisting machine (50) to generate a prescribed torque in a state where the emergency stop device is in operation; and an emergency-stop-device operation detection unit (103) that checks the operating condition of the emergency stop device on the basis of a rotational movement amount (dS) of a sheave installed in the hoisting machine and a movement amount (dC) of an elevator car during generation of the prescribed torque by the motor.
Inventors:
MIYAMAE MASAKI (JP)
ABE TAKASHI (JP)
IGARASHI AKITOMO (JP)
ITO SEIYA (JP)
ABE TAKASHI (JP)
IGARASHI AKITOMO (JP)
ITO SEIYA (JP)
Application Number:
PCT/JP2022/026178
Publication Date:
January 04, 2024
Filing Date:
June 30, 2022
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B66B7/06
Domestic Patent References:
| WO2021260942A1 | 2021-12-30 |
Foreign References:
| JP2013124156A | 2013-06-24 | |||
| JP2017203561A | 2017-11-16 | |||
| JP2017001778A | 2017-01-05 | |||
| JP2011042435A | 2011-03-03 | |||
| US20210387832A1 | 2021-12-16 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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