Sheet handling apparatus having controlled pressure rolls to ensure feeding of a single sheet
First Claim
1. Sheet handling apparatus, comprising:
- first feeding means for removing sheets from a stack;
second feeding means for receiving sheets fed thereto by said first feeding means;
third feeding means for receiving sheets fed thereto by said second feeding means;
sheet feed restraining means associated with said second feeding means and arranged to inhibit the feeding of two or more superposed sheets to said third feeding means;
pressure means movable between a home, nonoperative position in which said pressure means are out of cooperative association with said second feeding means, and an operative position in which said pressure means are in cooperative association with said second feeding means; and
sensing and control means for sensing in operation a cessation in the feeding of sheets from said second feeding means to said third feeding means and for causing said pressure means to be moved to said operative position in the event of such cessation so as to press a sheet engaged by said second feeding means against said second feeding means and thereby facilitate the feeding of this sheet to said third feeding means.
1 Assignment
0 Petitions
Accused Products
Abstract
A currency note picking and feeding apparatus (10) includes feed belts (28) for feeding notes from the bottom of a stack of notes (20) to the nip of a rotating suction drum (22) and separating belts (64) of frictional material which engage with the periphery of the drum (22). The suction drum (22) grips and feeds the lowermost note to a further conveyor means (76,82,84), with the separating belts (64) holding back any notes superposed on the lowermost note. If a feeding failure of the drum (22) occurs, as recognized by photodetector (90) associated with the further conveyor (76,82,84) failing to sense the passage of a note within a predetermined time interval, then pivotably mounted pressure rolls (92) are caused to be moved temporarily into cooperative association with the suction drum (22) so as to press the notes present at the nip of the drum (22) and the separating belts (64) against the drum (22), thereby increasing the grip of the drum (22) on the lowermost note.
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Citations
9 Claims
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1. Sheet handling apparatus, comprising:
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first feeding means for removing sheets from a stack; second feeding means for receiving sheets fed thereto by said first feeding means; third feeding means for receiving sheets fed thereto by said second feeding means; sheet feed restraining means associated with said second feeding means and arranged to inhibit the feeding of two or more superposed sheets to said third feeding means; pressure means movable between a home, nonoperative position in which said pressure means are out of cooperative association with said second feeding means, and an operative position in which said pressure means are in cooperative association with said second feeding means; and sensing and control means for sensing in operation a cessation in the feeding of sheets from said second feeding means to said third feeding means and for causing said pressure means to be moved to said operative position in the event of such cessation so as to press a sheet engaged by said second feeding means against said second feeding means and thereby facilitate the feeding of this sheet to said third feeding means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification