Rescue apparatus and an elevator
AssigneeKone Corporation
InventorsArto Nakari, Ari Kattainen
Life of this patent
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Abstract
The invention concerns a rescue apparatus, an elevator as well as a retrofit kit. The rescue apparatus comprises a brake control unit having input terminals for connecting to a power supply, output terminals for connecting to a magnetizing coil of an electromagnetic brake, at least one controllable brake opening switch associated with at least one of the input terminals and adapted, in an open state, to prevent supply of current from the power supply to the magnetizing coil and, in a closed state, to allow supply of current from the power supply to the magnetizing coil. The rescue apparatus further comprises a control cable comprising one or more control signal wires and a remote control panel coupled via the control cable to the brake control unit.
Claims20
A rescue apparatus for an elevator, the rescue apparatus comprising:
- a brake control unit comprising:
- input terminals for connecting to a power supply;
- output terminals for connecting to a magnetizing coil of an electromagnetic brake;
- and
- at least one controllable brake opening switch associated with at least one of the input terminals and adapted, in an open state, to prevent supply of current from the power supply to the magnetizing coil and, in a closed state, to allow supply of current from the power supply to the magnetizing coil;
- a control cable comprising one or more control signal wires;
- and
- a remote control panel coupled via the control cable to the brake control unit,
- wherein the remote control panel comprises a manually operated drive switch coupled via the control signal wire to the control pole of the at least one controllable brake opening switch, and
- wherein the at least one controllable brake opening switch includes a first controllable brake opening switch and a second controllable brake opening switch, both the first controllable brake opening switch and the second controllable brake opening switch being adapted to prevent supply of current to the magnetizing coil independent of each other.
A rescue apparatus for an elevator, the rescue apparatus comprising:
- a brake control unit comprising:
- input terminals for connecting to a power supply;
- output terminals for connecting to a magnetizing coil of an electromagnetic brake;
- and
- at least one controllable brake opening switch associated with at least one of the input terminals and adapted, in an open state, to prevent supply of current from the power supply to the magnetizing coil and, in a closed state, to allow supply of current from the power supply to the magnetizing coil:
- a control cable comprising one or more control signal wires;
- and
- a remote control panel coupled via the control cable to the brake control unit,
- wherein the remote control panel comprises a manually operated drive switch coupled via the control signal wire to the control pole of the brake opening switch,
- wherein the brake control unit further comprises a solid state switch associated with the output terminals for selectively preventing or allowing supply of electricity to the magnetizing coil.
Dependencies are inferred from the claim text.