Sensor, safety apparatus and elevator apparatus
US8672099B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Aug 30, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/968
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sensor for safety apparatuses for elevator apparatuses which can move a cab by means of a drive, the sensor including a contact bridge and a contact receptacle for receiving the contact bridge, said contact bridge being arranged in such a way that the closing state of the elevator door can be determined by connection of the contact receptacle and the contact bridge. In order to be able to improve in particular the susceptibility to maintenance, the sensor is in the form of an optical sensor which comprises a transmitter for transmitting an optical signal and a receiver for receiving the optical signal, the transmitter and the receiver being arranged on the contact receptacle and the contact bridge comprising at least one transmission element for transmitting the optical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.