Elevator safety system and method of operating an elevator system
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United States of America Patent
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Mar 16, 2021
Grant Date -
Jun 14, 2018
app pub date -
Dec 14, 2017
filing date -
Dec 14, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An elevator system (1) comprises: a hoistway (4) extending between a plurality of landings (8, 9); at least one hoistway door (10, 11) allowing access to the hoistway (4); an elevator car (6), which is configured to move along the hoistway (4); at least one safety (16), which is attached to the elevator car (6) and configured to stop any movement of the elevator car (6) when activated; an electronic safety actuator (18), which is configured to activate and deactivate the at least one safety (16); and a door safety switch (20), which is configured to monitor the at least one hoistway door (10, 11) and which is connected with the electronic safety actuator in order to allow activating the at least one safety (16), if the door safety switch (20) detects that the at least one hoistway door (10, 11) is not closed.
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