The invention discloses a seat backrest skeleton of an intercity bus. The seat backrest skeleton comprises a door frame type skeleton integrally molded by a thermoplastic composite material, wherein the skeleton adopts a U-shaped groove structure, and is 20-40 mm wide and 25-50 mm thick; the U-shaped groove is 15-35 mm wide; and the thickness of the skeleton is greater than or equal to the width of the U-shaped groove. The structures and the sizes of a headrest part and a backrest part of the seat backrest skeleton are optimally designed, so that the whole stress condition is obviously improved. As the width of the groove is proper, the skeleton and reinforcing ribs inside are synchronously stressed when being impacted, which approximates to the case that the whole impact is borne by the seat backrest skeleton. According to the result of a finite element analysis, the seat backrest skeleton meets the safety standards of intercity buses.
Seat backrest skeleton of intercity bus
2015-07-08
Patent
Electronic Resource
English
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |