Transfer drum between printing units of a sheet-fed printing press
US8225715B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 2008 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Oct 5, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F21/106
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A transfer drum between printing units in a sheet-fed printing press includes gripper systems which can be switched to a desired mode of operation by simple measures and ensure stable and reliable transport of a sheet between printing units when in a respective operating position. A drum body has journals for supporting the drum body in side walls and two gripper systems provided on the drum body. The gripper systems are radially extendable into an operating position depending on a selected mode of operation for printing on only one side or for printing on both sides of the sheet. The gripper systems are disposed diametrically opposite each other relative to an axis of rotation of the drum body and are attached to a support disposed in the drum body to move in radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.