Soft pinch roller to reduce hand-off error
US6042100A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Mar 3, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J13/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A pinch roller acts in combination with a drive roller to provide a nip through which sheets are passed in a sheet handling system. To reduce hand-off errors in the line feed accuracy of the sheet handling system, the pinch roller includes a compliant outer surface and soft undersurface volume. The flexibility of the outer surface allows the pinch roller to shift its holding force from the media to the pinch roller as the media leaves the nip between the rollers. This reduces the force seen by the media in the direction of the media travel, thus reducing the localized push on the back edge of the media. The soft undersurface volume is formed by a foam core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.