{
  "$type": "site.standard.document",
  "description": "Provided are a pretensioner, a retractor, and a seat belt device which can achieve both securing of the strength of a power transmission member in an initial driving stage and reduction of the sliding resistance against the power transmission member in a steady driving stage. The retractor includes…",
  "path": "/patents/1272538",
  "publishedAt": "2020-09-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R22/46",
    "JOYSON SAFETY SYSTEMS JAPAN K.K."
  ],
  "textContent": "Provided are a pretensioner, a retractor, and a seat belt device which can achieve both securing of the strength of a power transmission member in an initial driving stage and reduction of the sliding resistance against the power transmission member in a steady driving stage. The retractor includes a spool for winding up webbing for restraining an occupant and a pretensioner for winding up the webbing in an emergency to remove slack. The pretensioner includes a ring gear connected to the spool and a power transmission device for transmitting power to the ring gear in an emergency. The power transmission device includes a rod-shaped power transmission member which transmits power to the ring gear while being plastically deformed. A tip end of the power transmission member has an enlarged portion formed thicker than other portions of the power transmission member . The enlarged portion is made of the same material as the power transmission member",
  "title": "PRETENSIONER, RETRACTOR, AND SEAT BELT DEVICE"
}