Printing – Rolling contact machines – Rotary
Reexamination Certificate
2000-02-09
2001-05-15
Eickholt, Eugene (Department: 2854)
Printing
Rolling contact machines
Rotary
C101S219000, C101S477000
Reexamination Certificate
active
06230620
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a bearing for a cylinder of a rotary printing press.
DESCRIPTION OF THE PRIOR ART
EP 0 598 240 B1 describes a rotary rotogravure printing press with eight rotogravure printing units for multicolor first and second web side printing. A forme cylinder of this rotary rotogravure printing press is supported in three support rollers of a steady rest bearing.
DE 12 44 807 A shows a forme cylinder of a rotary printing press, which can be pivoted on a lever arm
GB 608 206 A discloses a bearing for cylinders, wherein the journal of the cylinder is seated on three rollers. These three rollers can be positionally displaced together.
DE 12 61 103 A describes a bearing arrangement for a printing press. In this case, the journals of the cylinders are seated on four rollers arranged in a plane, wherein respectively two rollers are arranged one behind each other and next to each other. SUMMARY OF THE INVENTION
The object of the present invention is based on providing a bearing for a cylinder of a rotary printing press.
In accordance with the present invention, this object is attained by providing a bearing for a cylinder of a rotary printing press in which journals of the cylinders act together, in a first position, with at least three support rollers. When the cylinder is to be changed, at least one of the three support rollers can be brought to a second position while at least two of the support rollers stay in the first position. Alternatively, all three of the support rollers can be moved.
The advantages which can be obtained by means of the invention reside in particular, in that the change of a cylinder is very simple when using a steady rest bearing. A dependable absorption of force components in several directions is assured by “locking” by means of a support roller. It is advantageous to use the positionally changeable support roller for changing a position for example, lifting, or lowering of the cylinder.
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Christmann Dieter
Drumm Hans-Dieter
Herb Rudolf
Straubinger Werner Georg Roman
Eickholt Eugene
Jones Tullar & Cooper PC
Koenig & Bauer Aktiengesellschaft
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