Patent ID: 8608161
Filing Date: 2013-12-17
Classification: B65H,G03G

Abstract:
1. A sheet stacking apparatus comprising: a main body of the apparatus which includes a discharge portion from which a sheet is discharged; a sheet stacking portion, provided on a top of the main body, on which a sheet discharged from the discharge portion is stacked; an upper unit, which can be provided at a closed position in which the upper unit is separated from the sheet stacking portion by a stacking space for stacking the sheets, and which can move upward from the closed position to an open position in which a larger space than the stacking space is formed; a lever member rotatably provided on a bottom surface of the upper unit so as it come into contact with the sheet stacked in the sheet stacking portion from above; and a holding portion which holds the lever member in a predetermined holding position so as to maintain a predetermined angle with the bottom surface of the upper unit to restrict downward rotation of the lever member in the larger space when the upper unit moves to the open position, wherein, when the upper unit has moved to the open position, if a force in a direction which makes the lever member rotate lower than the predetermined holding position is applied to the lever member held in the predetermined holding position by the holding portion, the holding portion releases the holding of the lever member.