US 7,073,439 B2Granted

Rotary press

AssigneeMiyakoshi Printing Machinery Co., Ltd.

InventorsKenji Takahashi, Tetsu Ohno

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Abstract

A rotary press is provided that prevents a print from contamination with a color different from a printing color. The rotary press comprising a printing unit made of a set of printing cylinders such as plate and blanket cylinders or plate and impression cylinders for printing paper; and a dryer disposed downstream of the printing unit for drying the paper printed, has a guide roller included therein for guiding the printed paper from the printing unit into the dryer wherein the guide roller has a diameter which is equal to, or a an integral multiple of, a diameter of a printing cylinder in the printing unit and is adapted to rotate synchronously with the printing cylinder and at a peripheral speed that is identical to that at which the printing cylinder is rotated.

Claims7

Dependent claims

A rotary press comprising:

a printing unit having at least one printing cylinder for applying ink to paper to form printed paper;
a dryer disposed downstream of the printing unit for drying the ink on said printed paper;
a guide roller positioned between said printing unit and said dryer for guiding the printed paper from said printing unit into said dryer;
and
a drive unit drivingly coupled to said guide roller;
wherein said guide roller has a diameter which is equal to, or an integral multiple of, a diameter of the printing cylinder;
and
wherein said drive unit includes means for driving said guide roller to rotate synchronously with the printing cylinder and at a peripheral speed that is identical to that at which the printing cylinder is rotated so that the guide roller always comes in contact with an identical portion of an image printed onto the paper.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/804,506Filed 19 Mar 2004
Priority: JP 2003-27875924 Jul 2003
Published: US 2005/0016401 A127 Jan 2005
Granted: 11 Jul 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

B41F 13/02
Common details of rotary presses or machines: conveying or guiding webs through presses or machines
B41F 13/22
Cylinders: means for cooling or heating forme or impression cylinders
B41F
Printing machines or presses

Family

US 2005/0016401 A1Pre-grant publication · published 27 Jan 2005
US 7,073,439 B2This patent

From the US filing history. Foreign family members aren’t listed.

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