| 摘要 |
PURPOSE:To feed sheets easily and certainly, by making a rotary roller have the function of adsorbing the sheets. CONSTITUTION:A rotary roller 13 which sends out sheets 11 loaded on a stand 12, and a picker roller 16 and a reverse roller 17 rotating reversely with each other to separate one sheet from the other(s) when two or more sheets 11 are conveyed at once, are provided. Said rotary roller 13 has a fixed hollow shaft 20 which is connected to a sucking unit 14, a driving shaft 21 which is attached through a bearing 23, and a roller 13a which is set around the outer circumference of said shaft 21. Each of plural adsorbing holes 18 formed radially in the rotary roller 13, can confront the hole 20a of the hollow shaft 20. When this roller 13a is rotated by a driving unit 15, a force which is bigger than the frictional resistance between two of the sheets, acts on the sheet 11, because there combined the frictional resistance and the adsorbing force between the sheet 11 and the roller 13a. Then, the sheets 11 can be separated one by one easily, and each of the sheets 11 can be sent and inserted certainly between two rollers 16, 17. |
