US 11,969,989 B2
Printing machine and method of operating a printing machine
Michael Karakatsanis, Dallgow-Döberitz (DE); Andreas Garbsch, Bad Salzuflen (DE); and Viktor Hildebrand, Leopoldshöhe (DE)
Assigned to BOBST BIELEFELD GMBH, Bielefeld (DE)
Appl. No. 17/759,312
Filed by BOBST BIELEFELD GMBH, Bielefeld (DE)
PCT Filed Jan. 20, 2021, PCT No. PCT/EP2021/051154
§ 371(c)(1), (2) Date Jul. 22, 2022,
PCT Pub. No. WO2021/151751, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 20020050 (EP), filed on Jan. 30, 2020.
Prior Publication US 2023/0066701 A1, Mar. 2, 2023
Int. Cl. B41F 31/02 (2006.01); B41F 31/04 (2006.01); B41F 35/00 (2006.01)
CPC B41F 31/02 (2013.01) [B41F 31/04 (2013.01); B41F 35/008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A printing machine comprising:
a doctor blade,
a drive system including a piston for urging the doctor blade in a first direction against a printing cylinder of the printing machine,
a sensor adapted for sensing a force with which the doctor blade is urged against the printing cylinder when the printing cylinder is substantially static, wherein the sensor is arranged on the piston, and
a mechanical locking element adapted for locking the drive system in an operating position so that when the mechanical locking element locks the drive system, the mechanical locking element restricts the drive system from moving in the first direction and a second direction opposite to the first direction.