Elevator derailment detection device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12264042
APP PUB NO 20210362979A1
SERIAL NO

16961699

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is an elevator derailment detection device, which is configured to bring a first conductive wire and a second conductive wire, which are provided in a hoistway in parallel with an elevating direction of an elevating body, into conduction with each other when derailment occurs, to thereby increase a voltage applied to the second conductive wire to a level higher than a voltage applied to the second conductive wire when no derailment has occurred, and is configured to detect the derailment through detection of the increase in voltage. The elevator derailment detection device is configured to inspect the behavior of a diagnosis target by performing control to switch a state of connection between a power supply unit and the diagnosis target between a conductive state and a non-conductive state, to thereby diagnose soundness of the diagnosis target.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATION7-3 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 1008310 ?1008310

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hara, Yuya Tokyo, JP 2 0
Koide, Kazuaki Tokyo, JP 5 1

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