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US 7,922,168 B2Granted
Method and device for transporting a sheet
AssigneeEastman Kodak Company
InventorStefan Schluenss
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AssigneeEastman Kodak Company
InventorStefan Schluenss
Estimating the term…
The invention relates to a method and a device for transporting a sheet, in particular after a sheet has been picked off a stack and separated therefrom, preferably for the feeder-side use in a printing machine, wherein the sheet is brought to a transport speed, preferably for transfer to another transport path. The object of the invention is to provide a more controlled method of the aforementioned type and a device allowing this method. In accordance with the invention, considering the method, this object is achieved in that the sheet is initially accelerated to a speed that is greater than the desired transport speed and only later, after a phase of this higher speed, said sheet is slowed to the desired transport speed, in which case the phase of the higher speed is dimensioned such that the affected sheet is in a nominal position at the appropriate time.
Method of transporting a sheet, after a sheet has been picked off a stack and separated therefrom, for feeder-side use in a printing machine, wherein the sheet is brought to a transport speed, for transfer to another transport path, the method comprising the steps of:
A device for transporting a sheet, picking the sheet off of a stack and separating the sheet from said stack, the device comprising at least one transport element adapted to bring the sheet to a transport speed wherein the transport element can be driven in such a manner that the sheet can initially be accelerated to a higher speed that is greater than the transport speed and after a phase of the higher speed, said sheet can be slowed to the transport speed, wherein the phase of the higher speed can be dimensioned such that an affected sheet is in a nominal position at an appropriate time, and wherein a progression of said initial acceleration takes place as a function of sinx t where t is time and where the exponent x is a number greater than or equal to about 1 and smaller than or equal to about 4.
Dependencies are inferred from the claim text.