Sleeved printing machine roller or cylinder for an offset printing machine, and method of sleeving a cylinder core
US5168808A · kind A · utility
16Cited by
15References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1992 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Jan 21, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F27/105
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
To securely attach a printing cylinder sleeve (3, 16, 28, 38, 38') over a cylinder core structure (2, 15, 27, 37), the core structure has grooves (4, 23, 29) located in the vicinity of axially remote end regions, which grooves are closed off by expansion rings (12, 25, 35, 38, 38'), which can be expanded by applying a hydraulic or pneumatic pressure medium, such as grease, or compressed air, between the core structure and the expansion ring. Connecting ducts, filled with grease, or connectable to a source of air pressure, are formed in the cylinder, connecting with the grooves therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.