Method and arrangement for preventing the unintended drifting of an elevator car
First Claim
1. A method for suppressing drifting of an elevator car away from a stopping floor, the method comprising:
- monitoring an operating condition of one or more machinery brakes of a hoisting machine of an elevator;
stopping, using the one or more machinery brakes, the elevator car from leaving a door zone of a stopping floor when at least one of a door of the elevator car and a landing door are open;
preventing start of a next run of an elevator car that has left the door zone of the stopping floor when the at least one of the door of the elevator car and the landing door are open; and
recording information about the preventing of the next run in a non-volatile memory of an elevator control unit.
1 Assignment
0 Petitions
Accused Products
Abstract
In a method for suppressing drifting of an elevator car away from a stopping floor, an operating condition of one or more machinery brakes of a hoisting machine of an elevator is monitored, and one or more machinery brakes are used to stop the elevator car from leaving a door zone of a stopping floor when at least one of the door of the elevator car and the landing door are open. Start of a next run of an elevator car that has left the door zone of the stopping floor is prevented when the at least one of the door of the elevator car and the landing door are open, and information about the preventing of the next run is recorded in a non-volatile memory of an elevator control unit.
44 Citations
23 Claims
-
1. A method for suppressing drifting of an elevator car away from a stopping floor, the method comprising:
-
monitoring an operating condition of one or more machinery brakes of a hoisting machine of an elevator; stopping, using the one or more machinery brakes, the elevator car from leaving a door zone of a stopping floor when at least one of a door of the elevator car and a landing door are open; preventing start of a next run of an elevator car that has left the door zone of the stopping floor when the at least one of the door of the elevator car and the landing door are open; and recording information about the preventing of the next run in a non-volatile memory of an elevator control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An arrangement for suppressing drifting of an elevator car away from a stopping floor, the arrangement comprising:
-
one or more machinery brakes to brake a movement of the hoisting machine of an elevator; a first monitoring part to monitor an operating condition of the one or more machinery brakes; a second monitoring part to monitor movement of the elevator car, the second monitoring part being further configured to stop the elevator car from leaving a door zone of the stopping floor when at least one of the door of the elevator car and the landing door is open using the one or more machinery brakes; a non-volatile memory in the elevator control unit; wherein the arrangement is configured to prevent starting of a next run of an elevator car that has left the door zone of the stopping floor when at least one of the door of the elevator car and the landing door is open; and wherein the non-volatile memory is configured to record information about the preventing of the starting of the next run of the elevator car. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
-
Specification