Actuating device for clamping arrangement for printing plates in

Details Actuating device for clamping arrangement for printing plates in Actuating device for clamping arrangement for printing plates in

1994-02-22

1995-01-24

Eickholt, Eugene H.

Printing

Flexible-sheet-securing devices

101378, B41F 2100

Patent

active

053834011

ABSTRACT:
The invention relates to an actuating device for clamping arrangements for printing plates in rotary printing presses. The printing unit cylinders receiving the printing plates are provided with at least one opening extending in the axial direction. Through actuating means fastened to the ends of the printing unit cylinder the printing plates can be tightened on the surface of the printing unit cylinder. The actuating means are operable by an actuating unit provided at one end of the printing unit cylinder. The invention is characterized in that the actuating unit (32) includes an overrunning clutch (30) which determines the rotational position of an actuating shaft (9), the actuating unit being spring-biased and comprising an axially movable component (27).

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