Reverse feeding device
US6394446B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Mar 8, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/007
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A reverse feeding apparatus for switching back and feeding a sheet, includes at least one feeding roller positioned for feeding a sheet in a first direction from an upstream path to a downstream path; a reverse feeding roller located at the downstream path and positioned for feeding a sheet in a second direction that is different from the first direction; at least one branch nail movably mounted adjacent the feeding roller; at least one guiding nail movably mounted adjacent the feeding roller, wherein a tip of the branch nail and a tip of the guiding nail are positionable to overlap the feeding roller when the sheet is not being fed in the first direction by the feeding roller, a branch nail pressing device which presses the branch nail to the position overlapping the feeding roller to increase friction between a sheet being fed in the first direction and the feeding roller; and a guiding nail pressing device which presses the guiding nail to the position overlapping the feeding roller to permit a front end of a sheet being fed in the second direction to pass by a lower face of the guiding nail. The pressure applied by the guiding nail pressing device is smaller than the pressure a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.