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US 9,434,575 B2Granted
Method and device for a safe emergency stop of an elevator
AssigneeKone Corporation
InventorsAri Kattainen, Antti Hovi
Life of this patent
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Abstract
A method and a safety device for implementing the method are provided in connection with a quick stop situation of an elevator. In the method, an activation process of a machinery brake is started and also a disconnection process of the current supply of the elevator motor is started after the starting of the activation process of a machinery brake.
Claims20
A method in connection with a quick stop situation of an elevator, said method comprising the steps of:
- starting an activation process of a machinery brake;
- and
- starting a disconnection process of a current supply for disconnecting the current supply occurring from a power source to an elevator motor,
- wherein the disconnection process of the current supply is started after the starting of the activation process of the machinery brake.
1 more element
Dependencies are inferred from the claim text.