Method for avoiding unwanted safety gear tripping in an elevator system, controller adapted to perform such a method, governor brake and elevator system each having such a controller
US10773923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Nov 15, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In the technical field of elevator systems, so as to provide a measure for preventing an overspeed governor rope inertia from unwantedly engaging a safety gear in an overspeed governor system, which has a governor rope connected to a moving mass of the elevator system, a machinery brake for decelerating the moving mass so as to perform a quick stop of the moving mass, a safety gear mounted to the moving mass, a synchronization linkage for tripping the safety gear and a synchronization linkage blocking device for blocking the synchronization linkage and/or a governor brake for braking the governor rope, it is determined whether a quick stop of the moving mass is performed, and the governor brake or the synchronization linkage blocking device is activated when the quick stop of the moving mass is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.