{
  "$type": "site.standard.document",
  "description": "The purpose of this invention is to simplify the structure for softening the shock of a rear-end collision. The lower portion of each of its right-side and left-side members 3, which are made of sheet steel, include a plurality of holes 7 and 8 in which fastening bolts 11 and 12 are inserted so as…",
  "path": "/patents/1105685",
  "publishedAt": "2002-03-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60N2/4221",
    "NHK SPRING CO LTD [JP]"
  ],
  "textContent": "The purpose of this invention is to simplify the structure for softening the shock of a rear-end collision. The lower portion of each of its right-side and left-side members 3, which are made of sheet steel, include a plurality of holes 7 and 8 in which fastening bolts 11 and 12 are inserted so as to connect the side members 3 with an external member. The fastening bolt 11 is capable of contacting the hole brim of a hole, and by installing such a fastening bolt 11 in all of the holes, or in all of the holes but one, the shock of a rear-end collision is softened.",
  "title": "Seat-back frame for vehicles"
}