| 摘要 |
<p>PURPOSE: To simplify return operation of a main tray to the containing position of an auxiliary tray by providing an energizing means to energize the auxiliary tray from an extension position toward a containing position and a lock means to lock the auxiliary tray, extended against the energizing force, in an extension position. CONSTITUTION: When an auxiliary tray 9 is situated in an ordinary containing position, the tip claw 19a of a lock lever 19 is positioned on a guide protrusion 11. When the auxiliary tray 9 is pulled out in the direction of an arrow mark against the force of a spring 16, the tip claw 19a of the lock lever 19 is slid over the guide protrusion 11 and dropped in a lock hole 18 and held in the extension position. In containing, when a containing operation button 21 is pressed, the lock lever 19 is rotated counterclockwise, the tip 19a is slipped out from the lock hole 18, and the auxiliary tray 9 is pulled through the force of the spring 16 and pulled back to a containing position. Thus, the auxiliary tray is automatically returned to a containing position.</p> |
