Patent attributes
A sheet stacking apparatus according to an embodiment stacks first and second sheets. The first sheet includes first stacked and non-stacked parts. The second sheet includes second stacked and non-stacked parts. The first and second stacked parts are stacked to overlap in a Z-direction. The apparatus includes a first holding part holding the first sheet and a second holding part holding the second sheet. The first and second holding parts each include a frame part and a supporter. The frame part extends in an X-direction. The supporter supports the sheet in the Z-direction and provided at the frame part. The first and second holding parts are respectively configured to hold the sheets in a state in which movement of the sheets in the X-direction is regulated. The supporter is provided to be able to drop the object by releasing the supporting of the object in the Z-direction.