Method and device for transferring a trailing edge of a sheet in a reversing device of a sheet-fed rotary printing machine
US6254094A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Jul 28, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F21/108
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for transferring to a downline sheet-guiding cylinder of a reversing device in a sheet-fed rotary printing machine, a trailing edge of a sheet guided on an upline sheet-guiding cylinder, includes at least one lifting device for lifting the trailing edge of the sheet from the upline sheet-guiding cylinder, and a gripper device disposed on the downline sheet-guiding cylinder, the gripper device having a gripper pad extensible out of the periphery of the downline sheet-guiding cylinder for receiving the trailing edge of the sheet from the lifting device outside the periphery, and retractable into the periphery of the downline sheet-guiding cylinder after receiving the trailing edge of the sheet, the lifting device being at least one adjustable blowing nozzle disposed in a stationary manner or on the upline sheet-guiding cylinder, for blowing air beneath the trailing edge of the sheet; and a method of transferring the trailing edge of the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.