{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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    "mimeType": "image/png",
    "size": 88399
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  "description": "An excavator 1 comprising: an electric motor 7 having a commercial power supply 5 and a battery 62 as the drive power sources therefor; and a hydraulic actuator having a hydraulic pump 113 driven by the electric motor 7, as the hydraulic source therefor. The excavator has: a first power supply mode…",
  "path": "/patents/1426038",
  "publishedAt": "2025-11-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L1/00",
    "YANMAR POWER TECHNOLOGY CO LTD [JP]"
  ],
  "textContent": "An excavator 1 comprising: an electric motor 7 having a commercial power supply 5 and a battery 62 as the drive power sources therefor; and a hydraulic actuator having a hydraulic pump 113 driven by the electric motor 7, as the hydraulic source therefor. The excavator has: a first power supply mode in which the electric motor 7 is driven while the battery 62 is being charged by the commercial power supply 5; and a second power supply mode in which the electric motor 7 is driven only by the battery 62. A power supply cable 51 for supplying power from the commercial power supply 5 is connected to a power supply port and, if the electric motor 7 has stopped operating, the excavator moves from the second power supply mode to the first power supply mode.",
  "title": "ELECTRIC WORK MACHINE"
}