Monitoring a suspension and traction means of an elevator system
US8686747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2010 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Aug 10, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B7/1223
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A monitoring device for a suspension-and-traction apparatus of an elevator system that includes at least one electrically conductive cord contains a measurement apparatus for determining a resulting resistance. The measurement apparatus is connected to the cord with contacting elements contacting opposite ends of cord. Damage to the suspension-and-traction apparatus is detected by a contact point that can register protruding conductive parts of the cord and, in another embodiment, the contacting elements each contain a plurality of mutually differing resistance elements such that each of at least two electrically conductive cords of the suspension-and-traction apparatus is connected to the monitoring device through two of the resistance elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.