Orbiting nip sheet output with faceup or facedown stacking and integral gate
US5215298A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1992 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Jun 24, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A plural mode system of transporting sheets in an output path of a copier or printer to a sheet stacking area, with selectable sheet inversion provided by opposing first and second sheet feeding rollers forming a sheet transporting nip engaging the leading edge of a sheet, by a relative orbital motion of the opposing rollers to progressively pivot the nip and thereby change the angular direction of motion of the leading edge of the sheet. A selection between faceup and facedown stacking of the sheets is provided by selectable orbital motion of the nip. The sheet is inverted for stacking by orbital motions pivoting the nip by greater than 90 degrees with the sheet's leading edge held in the nip, so that subsequently the leading edge of the sheet is moving in a direction substantially different from the direction of motion of the leading edge when the leading edge first entered the nip. For faceup stacking, a movable sheet deflector gate deflects sheets in the output path away from the nip, upstream of said nip, to bypass the nip, and feed those selected sheets directly from the output path into the sheet stacking station without inversion from different upstream rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.