{
  "$type": "site.standard.document",
  "description": "This power transmission device (1) has: a motor (2); a first planetary reduction gear (4) that is connected to the downstream side of the motor (2); a second planetary reduction gear (5) that is connected to the downstream side of the first planetary reduction gear (4); a differential device (6)…",
  "path": "/patents/1415000",
  "publishedAt": "2025-03-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60K1/00",
    "JATCO LTD [JP]"
  ],
  "textContent": "This power transmission device (1) has: a motor (2); a first planetary reduction gear (4) that is connected to the downstream side of the motor (2); a second planetary reduction gear (5) that is connected to the downstream side of the first planetary reduction gear (4); a differential device (6) that is connected to the downstream side of the second planetary reduction gear (5); drive shafts (8A, 8B) that are connected to the downstream side of a differential gear; and a differential gear case (60). The drive shaft (8B) is disposed so as to pass through the inner diameter side of a rotor core (21), the inner diameter side of a sun gear (41) of the first planetary reduction gear (4), and the inner diameter side of a sun gear (51) of the second planetary reduction gear (5). A cylindrical section (552), that is a portion of the differential gear case (60) and is positioned between the first planetary reduction gear (4) and the second planetary reduction gear (5) which are aligned in a rotating axis X direction, is supported on the inner circumferential side of an intermediate cover (14) by means of a bearing (B3).",
  "title": "POWER TRANSMISSION DEVICE"
}