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Title:
INSPECTION DEVICE FOR EXTERNAL COMMUNICATION DEVICE FOR ELEVATORS, AND INSPECTION METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/166045
Kind Code:
A1
Abstract:
This inspection device is applied to the inspection of an external communication device for elevators, which is used to make calls between a master intercom installed outside an elevator car and a slave intercom installed inside the elevator car. This inspection device comprises: a drive device for operating the on-off positions of a hook switch while being installed in the master intercom; a microphone device; a speaker device; and a control device that controls the operation of the drive device and the speaker device on the basis of the sound detected by the microphone device. Upon detecting a ringing tone emitted from the master intercom in response to a request from the slave intercom, the control device drives the drive device to operate the hook switch to the on position. When the microphone device detects an inspection tone emitted from a handset while the hook switch is operated to the on position, the control device outputs a confirmation tone from the speaker device.

Inventors:
SASAKI SHIGEO (JP)
Application Number:
PCT/JP2020/006110
Publication Date:
August 26, 2021
Filing Date:
February 17, 2020
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
International Classes:
B66B3/00
Foreign References:
JPH0551869U1993-07-09
JPH09233204A1997-09-05
JPH08181786A1996-07-12
JP2005075478A2005-03-24
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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