Elevator door with a door contact switch
US9546077B2 · kind B2 · utility
0Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2014 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | May 27, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.