{
  "$type": "site.standard.document",
  "description": "A generator (11) is driven by an engine (10) as a power source, a single electric motor (13) is rotated by power supplied from the generator (11), and operating parts of a lower traveling body, an upper rotating body and an excavating attachment are operated by the electric motor (13). An excavator…",
  "path": "/patents/1105150",
  "publishedAt": "2002-04-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60K6/28",
    "KOBELCO CONSTR MACHINERY LTD [JP]"
  ],
  "textContent": "A generator (11) is driven by an engine (10) as a power source, a single electric motor (13) is rotated by power supplied from the generator (11), and operating parts of a lower traveling body, an upper rotating body and an excavating attachment are operated by the electric motor (13). An excavator in which two batteries (12a) (12b) are used properly according to the load characteristic by battery switching device (24).",
  "title": "SHOVEL"
}