Printing press roll and cylinder
AssigneeMAN Roland Druckmaschinen AG
InventorsEwald Beer, Ernst Brandner, Max Eder
Life of this patent
Estimating the term…
Abstract
A press pull roll for moving a printing web through a printing press, especially through a folder, includes a roll body which moves the web, and a motor inside the roll body for driving the roll body in rotation. The motor includes a stationary spindle having stator windings, and rotor windings fitted in the roll body. The press pull roll is preferably one of a pair of press pull rolls forming a nip, wherein the second press pull roll may also incorporate a motor, or may be driven by the first press pull roll.
Claims19
A press pull roll for moving a printing web through a printing press, the pull roll comprising:
- a roll body which moves the web;
- and
- a motor inside the roll body for driving the roll body in rotation.
A pair of press pull rolls comprising
- a first press pull roll comprising a roll body and a motor inside the roll body for driving the roll body in rotation;
- and
- a second press pull roll positioned in parallel with the first press pull roll to form a nip in which the web is guided in order to move the web through the press.
A printing press cylinder which is one of a forme cylinder and an impression cylinder of a printing unit, the cylinder comprising:
- a cylinder body which moves the web;
- and
- a motor inside the roll body for driving the cylinder body in rotation.
Dependencies are inferred from the claim text.