Printing – Rolling contact machines – Rotary
Patent
1995-05-15
1996-07-23
Eickholt, Eugene H.
Printing
Rolling contact machines
Rotary
101230, 100 53, 74612, B41F 500
Patent
active
055379222
ABSTRACT:
In a printing unit of a printing press having a plate cylinder and a blanket cylinder, there is provided a combination including a press-on device having a press-on roller applicable against the plate cylinder and swivelable at a spaced distance therefrom about a swivel axis aligned parallel to respective axes of the cylinders, a finger-protection device and a blast air device for blowing air against one of the cylinders, the press-on bar having a longitudinal axis and having a plurality of rollers rotatably mounted thereon, and the blast-air device being formed of a hollow interior of the press-on bar for receiving blast air therein, and nozzle openings in the surface of the press-on bar for discharging blast air from the hollow interior thereof, the longitudinal axis of the press-on bar together with the plurality of rollers rotatably mounted on the press-on bar and the swivel axis being swivelable substantially on a plane passing through a nip between the plate cylinder and the blanket cylinder about the swivel axis in a direction opposite to a direction wherein the press-on roller is applied against the plate cylinder and against a spring-biasing force and being cooperatively engageable with a switching element connected in a circuit of a drive for the printing press.
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Eickholt Eugene H.
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
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