ELECTRICALLY ACTUABLE SAFETY DEVICE FOR A LIFT INSTALLATION AND METHOD FOR TRIGGERING SUCH A DEVICE
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United States of America Patent
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Issued Date -
Mar 16, 2017
app pub date -
Sep 12, 2016
filing date -
Sep 11, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a safety device for a lift installation, having an intercepting mechanism, which, when actuated, is designed to brake a movement of a lift car of the lift installation, an actuating mechanism, which is configured to assume a first and a second position, the actuating mechanism leaving the intercepting mechanism non-actuated in the first position and actuating the intercepting mechanism in the second position, having a pressure accumulator, which forces the actuating mechanism into the second position, a holding device, which holds the actuating mechanism in the first position by using a permanent magnet, and an electromagnet, which is configured to release the holding device when energized, in order to cause the pressure accumulator to force the actuating mechanism into the second position.
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