Patent ID: 7293767
Filing Date: 2007-11-13
Classification: B65H

Abstract:
1. A sheet sucking/feeding device which sucks an uppermost sheet among a plurality of stacked sheets, and separates the uppermost sheet from a sheet therebeneath and feeds the uppermost sheet out, said device comprising: a plurality of suction cups provided at predetermined intervals along a transverse direction of the sheet, and sucking the sheet; and a suction cup operation device which is operative to displace the plurality of suction cups over a predetermined stroke in a suction cup axial direction, and which, at a point in time when the sheet is sucked by the plurality of suction cups and raised up by a predetermined amount, displaces at least every other one of the plurality of suction cups independently of others of the suction cups, so as to cause the sucked sheet to curve wavily along the transverse direction; wherein the at least every other one of the plurality of suction cups comprise a first group of suction cups, and the others comprise at least a second group of suction cups.