Power transmission system for a passenger conveyor
US5224580A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1992 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Jun 15, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B50/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A power transmission system is provided for use in a platform drive mechanism of a passenger conveyor which has a conveyor frame and a plurality of laterally extending passenger platforms which are movably supported for driven movement about an endless path on the frame and engaged with a pair of circuitous drive chains disposed on opposite sides of the conveyor frame The transmission system has a multiple stage reduction gear drive positioned outboard of the passenger platforms and directly coupled between the drive chains and a motor for driving the passenger platforms in response to energization of the motor. A sprocket assembly has a drive shaft which extends laterally across the conveyor frame and mounts a pair of axially spaced sprockets. One of the sprockets is coupled between one axial end of the drive shaft and the gear drive output stage and engages one of the drive chains, and the other of the sprockets engages the second one of the drive chains and is coupled between a second axial end of the drive shaft and a support shaft journaled on the conveyor frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.