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US 4,938,134 AGranted
Printing plate clamping assembly
AssigneeKoenig & Bauer Aktiengesellschaft
InventorsWilli R. L. Dorsam, Karl-Heinz A. Schneider
Life of this patent
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Abstract
A flexible printing plate clamping assembly utilizes a printing plate clamping device disposed in a groove in a plate cylinder. A plurality of elbow lever assemblies are used to move a clamping bar between plate clamping and unclamping position. These elbow lever assemblies have pneumatic devices and counteracting springs to place them in either clamping or unclamping positions.
Claims5
A flexible printing plate clamping assembly for securing a flexible printing plate on the periphery of a plate cylinder in a rotary printing machine, said flexible printing plate clamping assembly comprising:
- a printing plate clamping housing positioned in an axially extending groove formed in the periphery of the plate cylinder;
- a clamping bar pivotably carried in said printing plate clamping housing and having a printing plate clamping flap;
- a plurality of elbow lever assemblies carried in said housing and pivotable between folded and straight positions to effect movement of said clamping bar between printing plate clamping and unclamping positions;
- and
- spring means and opposing expandable means to pivot said elbow assemblies between said folded and straight positions.
2 more elements
Dependencies are inferred from the claim text.