Sheet folding device and post-processing apparatus and image forming system comprising the same
US8028980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2010 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Aug 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00877
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet folding device includes a sheet guide for holding a sheet bunch, a folding roll device having a first folding roll and a second folding roll, a folding blade inserting the sheet bunch supported on the sheet guide to a nip position between the first and second folding rolls, and a blade driving device for moving the folding blade from a standby position to the nip position on the folding rolls. The sheet guide has a curved guide section supporting the sheet bunch and an outlet guide section connected to the curved guide section to guide the sheet bunch to the folding rolls. The curved guide section has a curved guide plate supporting the sheet bunch so that the sheet bunch rolls back toward the folding roll device. The outlet guide section includes a pair of opposite guide plates in folding the sheet bunch by the folding blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.