Elevator control system featuring all-electromagnet vibration and centering elevator car controller for coupling a roller arranged on a pivot arm to a guide rail
US5955709A · kind A · utility
7Cited by
22References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B7/042
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator control system has a roller guide assembly comprising a plurality of rollers arranged in a cluster having at least one roller connected thereto for coupling an elevator car to a guide rail mounted on an elevator hoistway wall. The roller guide assembly comprises a pivot arm for pivoting on a horizontal pivot axis in relation to a longitudinal axis of the guide rail. The elevator control system features one or more electromagnet actuators for providing both vibration and centering control and without any solenoid for providing centering control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.