{
  "$type": "site.standard.document",
  "description": "A passenger seat for a passenger transport vehicle is provided with a vehicle-side mountable substructure and with at least one seat part held on the substructure, which has a cushioning and a U-shaped backrest frame (26) formed from at least one tube (R). The leg tubes (28) of the backrest frame…",
  "path": "/patents/1099702",
  "publishedAt": "2002-12-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60N2/242",
    "GRAMMER AG [DE]"
  ],
  "textContent": "A passenger seat for a passenger transport vehicle is provided with a vehicle-side mountable substructure and with at least one seat part held on the substructure, which has a cushioning and a U-shaped backrest frame (26) formed from at least one tube (R). The leg tubes (28) of the backrest frame (26) pointing downward from the arch bar (27) to the seat frame (23) are fastened at least indirectly to the seat frame (23) and are each provided with a reinforcement (33, 35) to increase the bending stiffness of their lower leg tube areas (29). The seat frame (23) has two mutually spaced lateral seat frame tubes (24). Each inner seat frame tube end (30) adjacent to the backrest frame (26) transitions in a materially bonded manner via a transition tube bend (31) into the end (32) of the respectively associated lower leg tube area (29). Each transition tube bend (31) has, compared with the associated leg tube area (29), a greater wall thickness, which extends at least partially into both the respectively adjacent lower leg tube area (28) and into the respective lateral seat frame tube (24).",
  "title": "Passenger seat for public transport vehicles"
}