Patent ID: 7658378

Claim:
An apparatus for aligning sheet stacks in a feeder of a sheet processing machine, the apparatus comprising: a motor drive; an aligning plate driven by said motor drive; and a movement converter disposed between said motor drive and said aligning plate, said movement converter forcing a movement describing an approximately circular path onto said aligning plate, said movement converter including: at least one toothed belt driven by said motor drive; at least one toothed belt pulley to which a rotational movement of said motor drive is transmitted by said at least one toothed belt; at least one rotatably mounted shaft onto which said at least one toothed belt pulley is flange-connected; at least one lever to which said at least one rotatably mounted shaft is connected fixedly in terms of rotation at least at one end at a first pivot point; at least one pin rotatably mounting said aligning plate at a second pivot point of said at least one lever; and an element for guiding said aligning plate vertically.