An elevator has a first and a second cage, which are movable along a common travel path. In addition, the elevator includes a safety device, by which the two cages can be monitored, and a shaft information system, which is connected with the safety device and by which the speed and the position of the two cages can be determined. If the two cages fall below a safety spacing, a first braking measure can be initiated for at least a first cage by means of the safety device. A retardation plot for the at least first cage is predeterminable by the safety device on initiation of the first braking measure. In that case, a second braking measure can be initiated for the at least first cage by means of the safety device if the retardation plot is exceeded.
Safety device for braking an elevator cage
2016-03-29
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
Safety braking device for traction elevator and braking method of safety braking device
European Patent Office | 2024
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