Global Patent Index - EP 0303053 B2

EP 0303053 B2 2000-10-25 - Sheet-transferring device

Title (en)

Sheet-transferring device

Title (de)

Vorrichtung zur Übergabe von Bogen

Title (fr)

Dispositif de transfert de feuilles

Publication

EP 0303053 B2 (DE)

Application

EP 88110921 A

Priority

DE 3726780 A

Abstract (en)

[origin: CA1287255C] . To increase the operating speed of a printing machine in which sheets are fed from a make-ready table (5) to a printing system (P, G; 2, 3, 65, 63), sheets are fed to the make-ready table in a transport direction and a lateral force is applied to the sheets as they are being fed to the make-ready table, for example by inclined belts (6-9). A feed roller, operating at a rotationally non-uniform speed, accelerates sheets gripped between the feed roller (18) and a counter roller (32) and the accelerated sheets then impinge on front register stops (50; 59) on either a transfer cylinder (34) or the impression cylinder (60) itself, the transfer cylinder or the impression cylinder, respectively, being driven at rotational non-uniform speed, first slightly slower than the accelerated speed of the sheets to ensure gentle impingement on the front register stops of the transfer cylinder or the impression cylinder, and then, after being gripped, the respective cylinder accelerates to a speed which, for the transfer cylinder, will be the same as an associated impression cylinder or, for the impression cylinder itself, to the same speed as the cylinders of the printing system.

IPC 1-7 (main, further and additional classification)

B41F 21/05

IPC 8 full level (invention and additional information)

B41F 21/00 (2006.01); B41F 21/05 (2006.01); B41F 21/12 (2006.01); B65H 9/16 (2006.01)

CPC (invention and additional information)

B65H 9/163 (2013.01); B41F 21/05 (2013.01)

Designated contracting state (EPC)

CH DE FR GB IT LI NL SE

EPO simple patent family

EP 0303053 A2 19890215; EP 0303053 A3 19900404; EP 0303053 B1 19920909; EP 0303053 B2 20001025; CA 1287255 C 19910806; DE 3726780 A1 19890223; JP 2752381 B2 19980518; JP S6469344 A 19890315; US 4825762 A 19890502

INPADOC legal status


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