Device for separating the lowermost sheet from a stack

A device for separating at least one lowermost sheet from a stack, comprising at least:

• a hopper having at least one table (7) forming a bearing plane (100) for holding sheets of a stack,
• a pushing device (1) arranged underneath the hopper having at last one slide (10) that is movable back and forth in a pushing direction (110), having at least one pushing element (14) arranged on the slide (10) and which has at least one pushing edge (14.1, 14.2), wherein the least one pushing edge (14.1, 14.2) has a projection with respect to the bearing plane (100) for positive conveying, wherein the at least one pushing element (14) of the at least one pushing device (1) is arranged rotatably about a rotation axis (140) in a holder of the at least one slide (10), wherein the rotation axis (140) is arranged essentially parallel to the pushing direction (110), and
• a retaining device (3) having at least one retaining element (30), which delimits the hopper in the pushing direction (110) and is arranged at a distance from the bearing plane (100) in such a way that the at least one retaining element (30) forms a gap with the bearing plane (100) through which at least one lowermost sheet of the stack can be guided, wherein the gap and thus the passage height are adjustable,
• wherein the at least one pushing edge (14.1, 14.2) of the at least one pushing element (14) is movable relative to the bearing plane (100) of the hopper, wherein the projection for positive conveying of the at least one pushing edge (14.1, 14.2) changes with respect to the bearing plane (100).