Double-feed prevention device in paper feeding apparatus
US4588181A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1984 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Mar 16, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H3/5223
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A double-feed prevention device in paper feeding apparatus is provided with a paper feeding roller and a frictional member carried on a paper separating plate mounted on an end of a spring-biased swingable lever. Paper sheets are separated one by one at a gap having a predetermined dimension between the paper feeding roller and the frictional member. A part of the swingable lever is always engaged by a locking member so as to prevent separation of said frictional member from said paper feeding roller by wear off in a surface of said paper feeding roller. The double-feed prevention device according to the present invention is further provided with releasing means for disengaging between the locking member and the swingable lever to remove jammed paper from the gap as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.