Elevator door with a door contact switch
AssigneeInventio AG
InventorsRudolf J. Müller, Eric Birrer
Life of this patent
Estimating the term…
Abstract
A switching device for an elevator door provides a door contact signal. The switching device includes a magnet, a plurality of proximity sensors, and a detection area, which area is adjoined by the proximity sensors and in which the magnet can be moved. A sensor signal can be generated by each of the proximity sensors in at least one position of the magnet in the detection area, wherein the sensor signals are dependent on the distance from the magnet to the proximity sensors. A method for providing the door contact signal utilizes the switching device.
Claims17
1-15. (canceled)
A switching device for an elevator door for providing a door contact signal, the switching device comprising:
- a detection space formed in the switching device;
- a plurality of proximity sensors adjoining the detection space;
- and
- a magnet movable in the detection space, wherein in at least one setting of the magnet in the detection space the magnet generates a sensor signal from each of the proximity sensors to provide compensation, on a basis of evaluation of the sensor signals, for faulty settings of the magnet in the detection space, wherein the sensor signals are dependent on a spacing of the magnet from the proximity sensors.
A method of providing a door contact signal using a switching device including a magnet, a plurality of proximity sensors and a detection space formed in the switching device, wherein the proximity sensors are arranged at the detection space, comprising the steps of:
- producing a first sensor signal dependent on a spacing of the magnet from a first one of the proximity sensors in a setting of the magnet in the detection space;
- producing a second sensor signal dependent on a spacing of the magnet from a second one of the proximity sensors in the setting of the magnet in the detection space;
- and
- evaluating the first and second sensor signals to provide compensation for faulty settings of the magnet in the detection space.
An elevator door wherein the switching device according to claim 1 provides the door contact signal.
Dependencies are inferred from the claim text.