| 摘要 |
PURPOSE: To reliably prevent overlap-feeding of paper sheets by separating sheet-like bodies to be conveyed between a feed roller and a reverse roller one by one, and controlling press-returning force of the reverse roller on the basis of the thickness of the sheet-like bodies. CONSTITUTION: In a reverse roller 20, the pressing force and the limit torque are set by the actions of a pressurizing lever 22, a spring 24 and a torque limiter 56 so as to satisfy the specified paper feeding condition. When there is no paper sheet between a feed roller 8 and the reverse roller 20 or there is only one sheet, the reverse roller 20 and the feed roller 8 are follow-rotated by idling of the torque limiter 56. Since the torque limiter 56 is not idled when there are two or more paper sheets, the reverse roller 20 is reversely rotated so as to return the second and the later paper sheets. In this case, the thickness of the paper sheet is detected by a paper sheet thickness detecting sensor, a solenoid 16 is driven on the basis of the detected thickness, and the press- returning force of the reverse roller 20 is controlled. |
