Method of, and apparatus for, delivering flat articles one by one from a stack of such articles
US5362037A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1992 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Aug 7, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H3/0669
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for separating articles, such as paper or plastics sheets or envelopes, from a stack (9), and apparatus for carrying out this method is disclosed. A feed roller (6) periodically feeds an outer article to a conveyor roller (2) opposite to which a separation surface (3) is disposed. The pressure force of the feed roller (6) on the stack (9) is reduced when an article supplied is being carried off by the conveyor roller (2). The object of the invention is to provide such a method which can be carried out reliably with a simple construction. According to the invention, each time an article (8) is carried off by the conveyor roller (2), the feed roller (6) is carried along by said article (8) as long as the feed roller (6) bears on that article (8). The force with which the feed roller (6) bears on the stack (9) is then enhanced by the action of frictional force which is exerted by the feed roller (6) on an article (8) to be carried off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.