Patent ID: 6877735

Claim:
A paper sheet managing device including a storage part for storing paper sheets and sheet supply means for supplying a paper sheet from the storage part, the sheet supply means comprising: a pick up roller extending in a sheet width direction orthogonal to a sheet feeding direction; a drive shaft extending parallel to the pick up roller and rotationally driving the pick up roller; and a plurality of power transmitting means for transmitting a power from the drive shaft to the pick up roller, the plurality of power transmitting means being disposed at at least both ends of the pick up roller and each of the plurality of power transmitting means being comprising: a gear train that links the drive shaft and the pick up roller; an arm that swings about an axis of a gear in the gear train, to a front end of the arm, a rotational axis of the pick up roller being attached so as to an even number of gears that form at least part of the gear train links between the axis about which the arm swings and the rotational axis of the pick up roller; and frictional force generating means for generating friction force in accordance with rotation between the arm and either the even number of gears or the rotational axis of the pick up roller, wherein engaging parts of the driving shaft and the pick up roller that are engaged to the gears are irregularly shaped shaft parts and the pick up roller is flexible.