{
  "$type": "site.standard.document",
  "description": "A vehicle drive device includes a traction motor having an output shaft that is hollow, a speed reducer coupled to the output shaft, a differential gear that distributes a drive force of the traction motor transmitted through the speed reducer to a pair of drive wheels, and a transmission shaft…",
  "path": "/patents/1382472",
  "publishedAt": "2026-05-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60K17/22",
    "TOYOTA JIDOSHA KABUSHIKI KAISHA"
  ],
  "textContent": "A vehicle drive device includes a traction motor having an output shaft that is hollow, a speed reducer coupled to the output shaft, a differential gear that distributes a drive force of the traction motor transmitted through the speed reducer to a pair of drive wheels, and a transmission shaft that extends through a through hole of the output shaft along an axial direction of the traction motor and is spline-fitted to a side gear of the differential gear by spline provided on an outer peripheral surface of a first end portion of the transmission shaft. The transmission shaft includes a first flow path that extends along the axial direction and a second flow path that has a first end that is open to the first flow path and the second end that is open to the outer peripheral surface of the transmission shaft.",
  "title": "VEHICLE DRIVE DEVICE"
}