Patent ID: 9242827
Filing Date: 2016-01-26
CPC Classification: B65H,G03G

Claim Text:
1. A sheet stacking device comprising: a discharging unit configured to discharge a sheet; a stacking portion disposed to be pivotable relative to an apparatus main body between a first close position and a first pivot position, the stacking portion positioned at the first close position having a stacking surface on which the sheet discharged from the discharging unit being stacked; an auxiliary portion disposed to be pivotable relative to the stacking portion positioned at the first close position between a second close position and a second pivot position, the auxiliary portion positioned at the second pivot position extends the stacking surface of the stacking portion, wherein a first pivoting direction of the stacking portion from the first close position to the first pivot position is opposite to a second pivoting direction of the auxiliary portion from the second close portion to the second pivot position, and wherein the stacking portion and the auxiliary portion are pivotable integrally in a case the stacking portion is caused to pivot in the first direction from the first close position; and a pivot restricting unit configured to restrict pivoting of the auxiliary portion relative to the stacking portion in the first pivoting direction in a case the stacking portion is caused to pivot in the first pivoting direction from the first close position, wherein the stacking portion includes an opening portion from which the sheet being discharged by the discharging unit to the stacking surface.