Drive unit for entrance and exit systems
US8863604B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2007 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Feb 7, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2014
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drive apparatus for boarding and unboarding devices, in particular for passenger doors, boarding ramps, retractable steps and the like on public transport vehicles having an electric drive motor the driven element of which is connected to the input element of a first reduction gear the output element of which is coupled to the actuation devices for the boarding and unboarding devices where the drive apparatus is constructed as a compact drive where the electric drive motor, the first reduction gear and a second reduction gear as well as an energizable clutch are disposed axially behind each other inside a tubular housing between the first reduction gear and the second reduction gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.