{
  "abstract": "A device for unstacking a stack that is constructed of part-stacks of flat printed products arranged next to one another and on top of one another. The device has a separating apparatus for forming a gap between a respective part-stack and the stack, and a gripping apparatus for gripping and lifting the respective part-stack utilizing the gap. A first robot moves the gripping apparatus during unstacking and a second robot moves the separating apparatus separately. The two robots may be structurally identical gantry robots on a common gantry frame. The processing speed may be increased when depalletizing stacks due to process parallelization. The unstacking process is particularly suitable in a postpress context where printed products are further processed.",
  "assignees": [
    "HEIDELBERGER DRUCKMASCH AG"
  ],
  "authors": [
    "D'ANGELO DENNIS",
    "DEMIR SUAT",
    "DETTKE STEFAN",
    "DIEHL AXEL",
    "DIEWS MICHAEL",
    "HASENZAHL STEFAN",
    "KNÖBL DOMINIK",
    "MAIER STEFAN",
    "MÄRZ RALF",
    "MUTSCHALL STEFAN",
    "NEEB STEFFEN",
    "ÖSTREICHER MICHAEL"
  ],
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  "published_at": "2026-09-15T19:05:45.368767Z",
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  "source_date": "2026-03-26",
  "source_id": "US-2026084908-A1",
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  "title": "Device and method for unstacking a stack",
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