EP 0453844 B1 19940615 - Auxiliary drive for the fountain roller of an offset printing machines.
Title (en)
Auxiliary drive for the fountain roller of an offset printing machines.
Title (de)
Hilfsantrieb für die Farbkastenwalze einer Offsetdruckmaschine.
Title (fr)
Commande auxiliaire pour le rouleau encrier d'une machine à imprimer offset.
Publication
Application
Priority
DE 4013237 A 19900426
Abstract (en)
[origin: US5136940A] An auxiliary drive for the ductor roller of a sheet-fed offset press continues to advance the ductor roller in small angular steps during press stoppages. The damping unit drive which continues to run during press stoppages drives the ductor roller stepwise by way of an eccentric drive linkage and a ratchet wheel disposed on the ductor roller journal. When the press is running, a rocker lever in the drive linkage can be pivoted away from the throw zone of the eccentric for example, by a piston actuated by oil pressure of the press's oil supply system. In alternative embodiments, the lever arm can be pivoted away by a compressed air cylinder or a suction cylinder which become operative when the press is running.
IPC 1-7
IPC 8 full level
B41F 13/00 (2006.01); B41F 7/24 (2006.01); B41F 31/00 (2006.01); B41F 31/10 (2006.01); B41F 31/12 (2006.01); B41F 31/14 (2006.01); B41F 31/30 (2006.01); B41F 33/00 (2006.01); B41F 33/10 (2006.01)
CPC (source: EP US)
B41F 31/004 (2013.01 - EP US); B41F 31/10 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
US 5136940 A 19920811; AT E107230 T1 19940715; BR 9101689 A 19911210; DE 4013237 C1 19910711; DE 59101916 D1 19940721; EP 0453844 A2 19911030; EP 0453844 A3 19920219; EP 0453844 B1 19940615; ES 2055937 T3 19940901; JP H04226364 A 19920817; JP H0798395 B2 19951025
DOCDB simple family (application)
US 69200191 A 19910426; AT 91105474 T 19910406; BR 9101689 A 19910426; DE 4013237 A 19900426; DE 59101916 T 19910406; EP 91105474 A 19910406; ES 91105474 T 19910406; JP 9391591 A 19910424