Elevator overtravel testing systems and methods
US11066273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Mar 7, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B2201/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Elevator systems having a first guide rail and a second guide rail, an overtravel feature on at least one of the first or second guide rails, the overtravel feature located a first distance from a top surface of the respective guide rail, an elevator car moveable along the first and second guide rails, the elevator car including a car guidance element, and a control unit configured to perform an overtravel distance test. The control unit is configured to measure a second distance being a distance of travel of the elevator car between a landing position and a location of the overtravel feature, combine the first distance and the second distance to calculate a measured overtravel distance, and compare the measured overtravel distance with a predetermined overtravel setpoint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.