Sheet aligning device
AssigneeRicoh Company, Ltd.
InventorsMasumi Ikesue, Yasuhiro Takahashi
Life of this patent
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Abstract
A sheet aligning device including a pair of side walls located parallel to each other and defining therebetween a space for stacking a plurality of sheets. At least one of the side walls is movable in reciprocatory movement widthwise of the sheets stacked between the side walls to force the sheets against the other side wall so as to align the sheets widthwise thereof which is perpendicular to the direction in which they are delivered. The sheet aligning device includes at least one sensor for sensing the magnitudes of displacements of the sheets widthwise thereof and producing an output for adjusting at least one of the frequency, speed and stroke of the reciprocatory movement of the at least one side wall in accordance with the magnitudes of the displacements.
Claims5
A sheet aligning device comprising a pair of side walls located on opposite sides of sheets successively delivered at intervals, at least one of said side walls being movable in reciprocatory movement to bring the sheets into alignment with each other widthwise thereof which is perpendicular to the direction in which the sheets are delivered, wherein the improvement comprises:
- detecting means for detecting, before the sheets are aligned widthwise thereof, a displacement of each of the sheets widthwise thereof while the sheet remains aligned with a reference line lengthwise of the sheets and a displacement of each of the sheets in which the sheet is skewed with respect to the reference line, said detecting means producing an output for altering at least one of the frequency, speed and stroke of the reciprocatory movement of at least one side wall when a sheet aligning operation is performed.
Dependencies are inferred from the claim text.