Drive system for a passenger transport installation
US8627940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2012 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jan 23, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B23/028
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A drive system for transport of a passenger transport installation including an escalator or a moving walkway. Steps or pallets of the transport are actively connected to pulling elements which can be moved in the transport direction by at least one electric motor provided with a gear train having a chain wheel. The electric motor containing the gear train is positioned in one of the reversing areas of the transport and a further electric motor exclusively serves for the linear motion of the transport. Bushes/rolls of plate link chains are adjacent to or roll along individual teeth of the chain wheel while only getting into line contact, outside the tooth ground of the chain wheel. A point of force application of the bushes/rolls on the respective tooth of the chain wheel is realized such that only a one-directional force application component is generated at the respective tooth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.