Printing group cylinder of a web-fed rotary printing machine
US5560292A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Oct 20, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F13/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing group cylinder of a web-fed rotary printing machine is mounted by its journals on opposed side walls of the machine. A sleeve positioned on or about the cylinder may be slipped on or off of the cylinder through an opening in the side wall. During operation, the opening in the side wall is closed by placing a pair of sliding gates in their closed position. When it is desired to change the sleeve, the opening in the side wall is uncovered by displacing the sliding gates. In order to obtain good print quality, the bearing is formed of multiple interengaging rings, of which at least one is eccentrically shaped. The eccentric shape of the ring causes the axis of the printing group cylinder to move into either a print engagement or disengagement setting when the ring is slidably rotated. The eccentric ring is secured against turning when the sliding gates are opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.