Elevator rope positioning apparatus
US8123002B2 · kind B2 · utility
14Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Aug 19, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/42
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system and method for minimizing compensation rope sway by altering the natural frequency of compensation ropes using servo actuators. The rope sway may be minimized by moving the compensation sheave to adjust the tension of the compensation rope or adjusting the position of the termination of a compensation rope to account for changes in the position of a structure. Servo actuators may also be used to re-level the elevator car to account for rope stretch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.