MONITORING DEVICE FOR ELEVATOR

PURPOSE:To provide a monitoring device for an elevator to perform immediate announcement to a managing office during a door opening continuing state in which it seems that an elevator utilizer is absent in an elevator car. CONSTITUTION:A monitoring device for an elevator comprises a switch 3 and a r...

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Bibliographic Details
Main Authors ITO KOJI, TERADA HISAO
Format Patent
LanguageEnglish
Published 16.08.1994
Edition5
Subjects
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:PURPOSE:To provide a monitoring device for an elevator to perform immediate announcement to a managing office during a door opening continuing state in which it seems that an elevator utilizer is absent in an elevator car. CONSTITUTION:A monitoring device for an elevator comprises a switch 3 and a relay 4 to detect whether a safety device is operated and a door is reversed during closing of a door; and closing circuits (+)-2A-4A-5A-8-(-) to perform immediate announcement in a case reversion of a door is detected through operation of a safety device when the door is opened for a first given time.
Bibliography:Application Number: JP19930016428