Patent ID: 9533847
Date: 2017-01-03
CPC Classifications: B65H

Claim:
1. A paper-sheet feeding unit configured to feed out, one by one, paper sheets in a stacked state, the paper-sheet feeding unit comprising: a feed roller configured to be rotated when feeding out the paper sheet, the feed roller having a high friction portion placed on a part of a circumference of an outer circumferential surface thereof, and a low friction portion placed on a location of the outer circumferential surface thereof other than the high friction portion, the low friction portion having a frictional coefficient smaller than that of the high friction portion; and a gate member arranged to be pressed against the outer circumferential surface of the feed roller, the gate member constituting a gate section configured to separate, one by one, the paper sheets fed out by the feed roller, the gate member having a gate roller configured to be contacted with the paper sheet and configured not to be rotated either in a direction in which the paper sheet is fed out or in a direction reverse to the direction in which the paper sheet is fed out, when feeding out the paper sheet, wherein the gate roller has a friction portion on an outer circumferential surface thereof, and the gate member includes a one-way clutch disposed on the gate roller, the gate roller is configured to be rotated by the one-way clutch only in a direction reverse to a direction in which the paper sheet is fed out, and when the feed roller is rotated in the direction reverse to the direction in which the paper sheet is fed out, the gate roller is configured to be rotated, along with the rotation of the feed roller, in the direction reverse to the direction in which the paper sheet is fed out.