Roller gear over engagement protection for document feeder
US6581924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2001 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jul 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2403/72
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Over engagement protection of roller drive gears on a single sheet feeder roller assembly, which may comprise a replaceable roller bogie, is provided by a clutch gear which drives a pre-feed roller, the clutch gear being mounted in a roller support frame which includes spaced elongate, preferably arcuate, slots which limit gear travel toward the pre-feed roller when the roller is driven in a forward direction and which disengages the gears when the input power is reversed. The clutch gear is provided with elastomeric teeth for noise reduction and the roller assembly also includes a separation roller which is over driven relative to the surface speed of the pre-feed roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.