Patent ID: 8725297

Claim:
A sheet paper storage and dispensing device which stores and dispenses sheet paper, comprising: a first reel drum onto which a tape is wound from one side of the tape; a second reel drum on which sheet paper is stored by winding the tape thereon from an opposite side of the tape in a state in which the tape and sheet paper supplied from an external sheet paper transporting section to an intake/discharge port are mutually superimposed; a motor which drives the first reel drum and the second reel drum via a drive system; an electromagnetic clutch which switches between transmitting and interrupting drive force from the drive system; an electromagnetic brake which applies a brake to the drive system; a trigger sensor which detects supplying of the sheet paper from the sheet paper transporting section to the intake/discharge port, the trigger sensor detecting a distal end portion of the sheet paper supplied to the intake/discharge port; a tape speed detection section which detects a transporting speed of the tape at the intake/discharge port; a motor speed variation control unit which controls changes in a rotation speed of the motor; a bottom roller which transports the tape by being in contact with the tape, the tape speed detection section provided at the bottom roller, at least a portion of the bottom roller being urethane rubber; and a winding control unit which causes a winding operation by controlling the electromagnetic clutch so as to transmit the driving force of the motor when supplying of the sheet paper to the intake/discharge port is detected by the trigger sensor, the winding operation being an operation in which the tape is dispensed from the first reel drum while the tape is wound onto the second reel drum, so that the sheet paper supplied to the intake/discharge port is wound onto the second reel drum, the winding control unit controlling the motor speed variation control unit such that, during the winding operation, the transporting speed of the tape detected by the tape speed detection section is held at a fixed speed which is faster by a predetermined amount than a transporting speed of the sheet paper transporting section, the winding control unit causing the electromagnetic clutch to interrupt the drive force from the drive system and causing the electromagnetic brake to apply the brake to the drive system, at a point in time when a predetermined time required for the sheet paper to be stored elapses after a point in time when the trigger sensor detects the distal end portion of the sheet paper supplied to the intake/discharge port.