EP 0249788 B1 19910911 - DEVICE ON PRINTING MACHINES HAVING DEVICES FOR ADJUSTING THE LONGITUDINAL, TRANSVERSE AND DIAGONAL REGISTERS
Title (en)
DEVICE ON PRINTING MACHINES HAVING DEVICES FOR ADJUSTING THE LONGITUDINAL, TRANSVERSE AND DIAGONAL REGISTERS
Publication
Application
Priority
- DE 3620138 A 19860614
- DE 3620139 A 19860614
- DE 3703998 A 19870210
Abstract (en)
[origin: EP0249788A2] In order to control positioning mechanisms on printing machines for longitudinal, transverse and diagonal register, in dependence upon a comparative evaluation of a reference signal with the measurement signal produced by a register mark recognition device, the register marks are formed from two accurately aligned apertures (7) facing one another outside the printing and inking area on one or both sides in each printing plate (6, Fig. 3). Light emitters (5A, 5B) or light receivers (12, 13, 72) are arranged in an opening in the outer surface of the plate cylinder (1) and form part of a register mark recognition device arranged after the accurately aligned apertures (7). Synchronously with the rotation of the plate cylinder (1), by means of a lens (8) of optimum light is shone through each accurately aligned aperture (7), projectable as a light-spot on the associated light receiver (12, 13, 72). <IMAGE>
IPC 1-7
IPC 8 full level
G01B 11/00 (2006.01); B41F 13/12 (2006.01); B41F 13/16 (2006.01); B41F 33/00 (2006.01); B41F 33/14 (2006.01)
CPC (source: EP)
B41F 13/12 (2013.01); B41F 33/0081 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0249788 A2 19871223; EP 0249788 A3 19891025; EP 0249788 B1 19910911; AT E67122 T1 19910915; DE 3772857 D1 19911017; JP H0667618 B2 19940831; JP S62299340 A 19871226
DOCDB simple family (application)
EP 87107861 A 19870530; AT 87107861 T 19870530; DE 3772857 T 19870530; JP 14718987 A 19870615