| 摘要 |
<p>PURPOSE:To facilitate the mounting and removal of a cassette by pushing up a pressurizing member being interlocked with the mounting action of said cassette via a rotating member while maintaining the pushing-up of sheet members by means of said pressurizing member after said cassette is mounted. CONSTITUTION:When a cassette 18 is inserted, the end parts 11a of lever 11 are moved along cam faces 21 on both sides of the cassette 18 rotating the level 11 and, accompanying this, a pressure plate 12 which is pressurized by a pressure spring 13 one end of which is fixed to a shaft 15 is also rotated. Since the rotated pressure plate 12 pushes up an intermediate board 19, copying papers loaded on the intermediate board 19 are brought into contact with a paper feeding roller 17 while being guided by a guide roller 20. Then, the levers 11 which have been lifted up to the top end of the cassette 18 fall into the recesses 21a on its end to fix the cassette 18. In this structure, the force which presses the lever 11 against the cassette 18 is the reaction force of the force with which the pressure spring 13 lifts up the pressure plate 12, and this force is constant irrespective of the quantity of the sheets of paper 10.</p> |
