Title (en)

PRINTING UNIT FOR AN OFFSET PRINTING MACHINE FOR PRINTING SHEETS

Publication

EP 0096181 A3 19850605 (DE)

Application

EP 83103431 A 19830408

Priority

DE 3220919 A 19820603

Abstract (en)

[origin: ES8402764A1] To improve the versatility of offset printing machines by permitting, selectively, prime printing or prime-and-verso printing, a printing system of at least one plate cylinder (1) in engagement with a rubber blanket cylinder (7) is provided, the plate cylinder having the customary inker (3) and damper (5) associated therewith. Printing is effected against an impression or counter cylinder (9). The impression or counter cylinder is arranged for application of verso print image on the sheet by having an attachment arrangement (13-24) to attach a flexible planographic printing plate (12) on the surface thereof a further inker (29) is provided, selectively engageable with the planographic printing plate, if verso printing is to be effected. If the printing plate is an offset printing plate, an additional damper may be provided, selectively engageable therewith. Preferably, the diameter of the impression or counter cylinder (9) is smaller than the diameter of an associated dimensioning or bearer ring (11), the difference in diameter (2a-see FIG. 3) being at least twice the thickness of the flexible planographic printing plate. The flexible planographic printing plate can be selectively interchanged with other surfaces, such as a metal plate, a rigid impression surface, or an elastic or yielding impression surface, such as a blanket or other similar cover.

IPC 1-7

B41F 7/06; B41F 27/12

IPC 8 full level

B41F 7/06 (2006.01); B41F 7/10 (2006.01); B41F 7/02 (2006.01); B41F 13/18 (2006.01); B41F 27/12 (2006.01); B41F 31/30 (2006.01)

CPC (source: EP US)

B41F 7/06 (2013.01 - EP US); B41F 7/10 (2013.01 - EP US)

Citation (search report)

• [X] CH 280502 A 19520131 - HARRIS SEYBOLD CO [US]
• [A] US 3203346 A 19650831 - NORTON ROBERT K, et al
• [A] GB 368987 A 19320317 - JOSEPH FRANCIS WILSON, et al
• [A] FR 2492732 A1 19820430 - ROLAND MAN DRUCKMASCH [DE]

Designated contracting state (EPC)

AT DE GB NL SE

DOCDB simple family (publication)

EP 0096181 A2 19831221; EP 0096181 A3 19850605; EP 0096181 B1 19870121; AT E25034 T1 19870215; BE 896964 A 19831003; CA 1202523 A 19860401; DE 3220919 A1 19831208; DE 3220919 C2 19841220; DE 3369279 D1 19870226; ES 522914 A0 19840301; ES 8402764 A1 19840301; FR 2527982 A1 19831209; FR 2527982 B1 19880304; IT 1168877 B 19870520; IT 8348344 A0 19830520; JP H0376219 B2 19911204; JP S58220744 A 19831222; US 4587897 A 19860513

DOCDB simple family (application)

EP 83103431 A 19830408; AT 83103431 T 19830408; BE 210937 A 19830603; CA 426115 A 19830418; DE 3220919 A 19820603; DE 3369279 T 19830408; ES 522914 A 19830601; FR 8309158 A 19830602; IT 4834483 A 19830520; JP 9812483 A 19830603; US 72300485 A 19850416