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US 4,544,147 AGranted
Apparatus for feeding sheets one by one
AssigneeOce-Nederland B.V.
InventorJohannes H. A. Dinnissen
Life of this patent
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AssigneeOce-Nederland B.V.
InventorJohannes H. A. Dinnissen
Estimating the term…
An apparatus for feeding sheets one by one from a group of at least partially overlapping sheets, in which a conveyor belt in contact with the lowermost sheet is driven to feed that sheet in the desired transport direction while a sheet separating roller forming a nip with the belt is driven so as to move the surface of the roller through the nip in the opposite direction, thus holding back of the nip sheets lying on the lowermost sheet, is provided with a displaceable member, for example a flat end portion of a leaf spring wound into a spiral, which has a smooth underside to receive under this member and press on the sheets approaching the nip and has a forward end edge slidably engaged with the surface of the roller immediately adjacent to the location where the sheets contact the roller. The displaceable member prevents the sheets from curling up or buckling in the vicinity of the roller, irrespective of the number of sheets and irrespective of variations of the position of the separating roller.
In an apparatus for feeding sheets one by one, including conveyor means for engaging with and drivable to advance at least the outermost sheet of a group of at least partially overlapping sheets, sheet separating means comprising a roller positioned adjacent to said conveyor means so as to form therewith a nip for passing the outermost sheet therebetween and means for driving said roller to move its surface through said nip in a direction opposite to the direction of advance of sheets by the conveyor means,
In an apparatus for feeding sheets one by one, including a conveyor belt having a flight thereof disposed to engage with and drivable to advance at least the lowermost sheet of a group of sheets that at least partially overlap, a sheet separating roller yieldably biased toward said belt flight so as to form therewith a nip for passing the lowermost sheet therebetween and means for driving said roller to move its surface through said nip in a direction opposite to the direction of movement of said belt flight,
Dependencies are inferred from the claim text.