Procedure and apparatus for damping the vibrations of an elevator car
US5027925A · kind A · utility
36Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1989 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Sep 22, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B7/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A procedure for damping the vibrations of an elevator car or part supported by elastic suspension elements comprises the steps of measuring the acceleration of the elevator car or part by means of at least one acceleration transducer, using the output signal from that transducer to control at least one vibration damper, which, in order to damp a vibration, imparts to the elevator car or part a force acting in a direction opposite to the direction of the vibration and substantially simultaneous with it. An apparatus to carry out the procedure is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.