Patent ID: 9604446
Date: 2017-03-28
CPC Classifications: B41F

Claim:
1. An inking unit for a printing unit comprising: at least one first inking unit roller, a second inking unit roller, and a third inking unit roller, which third inking roller is spaced at a distance from the first inking unit roller; a pivot drive to pivot the second inking unit roller between a first position in contact with the first inking unit roller and a second position in contact with the third inking unit roller, the pivot drive having a drive train including a drive means which is mechanically independent of a rotation of printing unit cylinders and of a rotation of additional inking unit rollers provided in the printing unit; an adjustment means to remotely set a contact force of the second inking unit roller relative to at least one of the first and the third inking unit rollers by one of predefining and modifying a setpoint value of a driving force of the drive means by the adjustment means; wherein the drive means is one of a linear drive and a rotary drive which is actuated by applying a compressed fluid to the drive means, to pivot the second inking unit roller between both the first position in contact with the first inking unit roller and the second position in contact with the third inking unit roller by the application of the compressed fluid to the drive means and wherein the contact force of the second inking unit roller relative to the at least one of first and the third inking unit rollers can be set by one of setting and varying a pressure level of the compressed fluid applied to the drive means; and wherein the pivot drive is prestressed by a torsion bar spring element whereby, when the drive means is one of detached and switched to a resistance-free mode, a force which is counter to an acceleration of the second inking unit roller, which force is induced by gravity, is introduced into the drive train of the pivot drive by the torsion bar spring.