Printing plate clamping assembly
US4036133A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1975 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Dec 12, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F27/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Clamping apparatus is provided for clamping thin flexible printing plates in position on a press cylinder. A continuously spring biased rigid clamping member is engageable with a bent over portion of the trailing edge of the printing plate to clamp the same against the circumference of a printing press cylinder. In order to accommodate loading and unloading of printing plates on the clamping member, retaining straps are attached to the clamping member, which retaining straps are engageable with a release bar detent to lock the straps and clamping bar in a non-clamping position against the force of the clamping springs. The release bar is continuously spring biased to a locking position so that whenever the clamping bar is moved to the non-clamping position, the same is locked in said position. The release bar includes a manually operable push-button end portion for accommodating release of the release bar from the straps, whereby automatic movement of the clamping bar via the clamping springs to a clamping position is effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.