Method and apparatus for half folding paper sheets
US4898570A · kind A · utility
18Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1989 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Feb 8, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H45/144
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for half folding sequentially and nesting a plurality of paper sheets. The apparatus includes a buckle chute folder, the folder having a first pair of feed rollers rotatable at a given velocity, and a device for continuously feeding the paper sheets in shingled relationship at a second velocity greater than the given velocity to the feed rollers. The shingled relationship is defined by an overlap of the sheets of at least one-half of the length of the sheets. By using the apparatus and method, any desired number of sheets may be folded sequentially and nested one inside the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.