Adjusting device for printing plates
US5875718A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Aug 29, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41P2227/42
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An device for adjusting the tension applied on a printing plate on a plate cylinder of a sheet fed offset printing machine is provided. The device includes a clamping bar comprising at least one clamping bar section and having a clamping gap which receives an end of the printing plate. Moreover, the clamping bar is arranged so that it can move approximately in the circumferential direction of the plate cylinder. The device further includes a spring element which acts on the clamping bar so as to apply a tensile force on the printing plate. The device also includes an adjusting element pivotally supported on the cylinder such that it can be pivoted counter to the force of a spring from a disengaged position into engagement with the clamping bar in order to selectively reduce the tensile forces exerted on the printing plate by the spring element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.