Method and apparatus for folding sheets of paper
US7326166B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Feb 7, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H45/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
For folding a sheet of paper, a portion of the sheet situated between opposite ends of the sheet is bent to a folding nip between a pair of folding rollers. By rotating the folding rollers in an output rotation sense, whereby sections of the folding rollers in the area of the folding nip transport the bent portion of the sheet into the folding nip, and transporting the bent portion of the sheet through the folding nip, a fold is formed in the bent portion of the sheet. Prior to the rotation of the folding rollers in the output rotation sense, at least a portion of the sheet is supplied between the folding rollers by rotating the folding rollers in an input rotation sense opposite to the output rotation sense. An apparatus for folding is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.