Method and apparatus of forming a separated stack of zigzag folded sheets from a main stack
US5090678A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 1991 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | May 17, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/371
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for forming separated stacks of perforated, zigzag folded sheets from a main stack comprises a feed conveyor adapted to receive the folded sheets and to transmit such sheets on their folded ends to a sheet spreading and cutting station. Two adajcent sheets of the main stack are spread apart at the spreading and cutting station by a divider plate and a separator blade to provide sufficient clearance for a flexible cutter to extend into engagement with the perforation therebetween thus forming a relatively small, separated stack of folded sheets from the main stack. This separated stack is then transferred to a discharge conveyor for further handling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.