Device for unstacking flat objects
US4757985A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1987 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | Jul 8, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/1916
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An unstacking device for objects such as mail envelopes is of the type comprising a magazine for storing and feeding stacked objects and a discharge head for separately removing jogged objects from a stack. The device is provided within the terminal portion of the magazine with a transition edge guide which serves to restore inclined objects to a practically upright position for subsequent discharge and is inclined with respect to the direction of feed motion of stacked objects and with a jogging reference edge guide which is relatively displaced towards the exterior of the magazine. There are associated with the edge guides a feed screw for advancing objects and a delay screw for retarding objects, the screws being interposed between jogging rollers opposite to the edge guides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.