{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
      "$link": "bafkreiacdaqnjoiqalk2zws7bx6wdh7fpxm4ixrnhgrg2f6kvwzphbg2za"
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    "mimeType": "image/png",
    "size": 85099
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  "description": "A provided electric assisted bicycle is configured such that an internal derailleur is provided in a drive unit that internally combines a human driving force and an auxiliary driving force, and the electric assisted bicycle can automatically change gears. The drive unit disposed at an intermediate…",
  "path": "/patents/924475",
  "publishedAt": "2017-07-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B62M11/06",
    "PANASONIC IP MAN CO LTD [JP]"
  ],
  "textContent": "A provided electric assisted bicycle is configured such that an internal derailleur is provided in a drive unit that internally combines a human driving force and an auxiliary driving force, and the electric assisted bicycle can automatically change gears. The drive unit disposed at an intermediate position between a front wheel and a rear wheel includes a transmission mechanism (25) that transmits a resultant force of a human driving force and an auxiliary driving force from a motor while changing multiple gears. The transmission mechanism (25) includes a transmission weight (81) whose orientation is changed according to a centrifugal force during a rotation of the transmission weight (81). An increase in the rotation speed of a crank shaft (7a) changes the orientations of the transmission weights (81) so as to change from a low gear to a high gear.",
  "title": "ELECTRIC ASSISTED BICYCLE"
}