Apparatus for holding printing plates on the cylinder of a printing press
US4546702A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1984 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Mar 30, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F27/125
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In the case of a device for holding offset or other plates on the plate cylinder of a printing press with two clamping members on the two sides of a well running in the axial direction of the cylinder and each having a gripping part of clamping the hooked ends of the plate and at least one of the members may be rocked about an axis parallel to the axis of turning of the cylinder, the necessary width of the well may be greatly decreased in the clamped condition of the system of one of the clamping members, that is able to be rocked, takes the form of a segment bar having a cross-section that is generally three-sided and segment-like. This bar may be placed next to an outer face of the cylinder body and has an outer face lined up with and continuing the outer face of the cylinder body. The segment bar further has a convex, part-cylindrical base face at a limit of the outer face of the bar, the convex base face fitting into a socket therefore in the cylinder body, the socket being part-cylindrical and concave with a curvature in keeping with the form of the convex face. Because the well is narrow there is more space for the printing image on the plate cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.