B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 9/10 (2006.01) B41J 11/00 (2006.01) B41J 13/076 (2006.01)
Patent
CA 2199626
The document aligning and feeding device comprises couples of rollers formed by a delivery roller (15) and a backup counter-roller (14), wherein each couple of rollers is subjected to a lower load during the aligning step and a higher load during the successive feeding step. The backup counter-roller is formed by two separate, coaxially coupling counter-rollers, one of which (33) has a lower coefficient of friction with the document and is the one operating during the aligning step, whereas the other (31) has a higher coefficient of friction and is operational during the successive feeding step. This allows the document to rotate freely about one of its corners during the aligning step, and to advance without being deflected during the successive feeding step.
La présente invention concerne un introducteur-cadreur de documents constitué de paires de galets, chaque paire comprenant un galet approvisionneur (15) et un contre-galet applicateur (14). La charge qui s'exerce sur chaque paire de galets est basse pendant la phase de cadrage et élevée pendant la phase d'introduction qui suit. Le contre-galet applicateur comporte en fait deux contre-galets distinct couplés sur un même axe. L'un d'entre eux (33) présente avec le document un coefficient de friction inférieur. C'est lui qui est en fonction pendant la phase de cadrage. Par contre, l'autre (31) présente avec le document un coefficient de friction supérieur. C'est lui qui est en fonction pendant la phase d'introduction qui suit. Cela permet au document de tourner librement autour de l'un de ses coins pendant la phase de cadrage, et d'avancer sans se décadrer pendant la phase d'introduction qui suit.
Ing. C. Olivetti & C. S.p.a.
Ridout & Maybee Llp
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