Platen for cut sheet feeder

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 3/02 (2006.01) B65H 3/04 (2006.01) B65H 3/14 (2006.01) B43M 3/04 (2006.01)

Patent

CA 2548710

A platen structure to facilitate the transport of stacked sheet material conveyed along a transport deck of a sheet feeing apparatus. The platen structure comprises first and second segments connected by means of a compliant coupling. The first segment of the platen is operative to engage a face of the stacked sheet material and apply a stabilizing normal force thereon. The second segment of the platen is operative to engage and travel synchronously with a moving surface of the transport deck. Furthermore, the first and second segments are connected by means of a compliant coupling which is operative to facilitate the relative angular displacement of the first and second segments about at least one axis while maintaining the relative linear displacement therebetween about at least one of the other axes. The platen structure ensures reliable sheet material run-out by compensating for a reduction in sheet material weight as the final or last sheets of the stack are singulated/separated. Furthermore, the compliant coupling enables the various segments of the platen structure to conform to the contour of the stacked sheet material, i.e., a cantilevered delivery profile.

Platine facilitant le transport d'une pile de feuilles sur un plateau de transport d'un appareil d'alimentation en feuilles. La platine comprend un premier et un deuxième segment reliés au moyen d'un accouplement adapté. Le premier segment de la platine permet d'engager une face de la pile de feuilles et d'y appliquer une force normale de stabilisation. Le deuxième segment de la platine s'engage et se déplace en même temps qu'une surface mobile du plateau de transport. De plus, le premier et le deuxième segment sont reliés au moyen d'un accouplement adapté qui facilite le déplacement angulaire relatif du premier et du deuxième segment au tour d'au moins un axe, tout en maintenant un déplacement linéaire relatif du premier et du deuxième segment aux environs d'au moins un des autres axes. La platine permet de bien faire passer toutes les feuilles en compensant la réduction de poids de la pile de feuilles lorsque les dernières feuilles de la pile sont séparées. De plus, l'accouplement adapté permet aux différents segments de la platine de s'adapter au contour de la pile de feuilles, par exemple, dans le cas où le profil de distribution est en porte-à-faux.

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