{
  "abstract": "This delivery robot may comprise: a lower plate configured to be fixed to the delivery robot; an upper plate configured to support items placed thereon; a damper spring fixed to the lower plate; and an adjusting plate coupled to an end of the damper spring and configured to adjust the damping of the damper spring. The adjusting plate is formed as an inclined surface, and thus the distance between the center of the damper spring and the adjusting plate can be made different at a center point and an end point. The upper plate can move at a different inclination angle relative to the lower plate according to the distance between the center of the damper spring and the adjusting plate.",
  "assignees": [
    "BEAR ROBOTICS KOREA INC"
  ],
  "authors": [
    "CHEON JEEYOUNG",
    "HAN JONGBEOM",
    "IM SANGHYUK",
    "SHIN JIYONG"
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  "source_date": "2026-03-18",
  "source_id": "EP-4711098-A1",
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  "supersedes": null,
  "title": "Delivery robot",
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