Seat backrest skeleton of intercity bus

Abstract

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.

Description

technical field [0001] The invention belongs to the technical field of automobile seats, in particular to a long-distance bus seat backrest frame. Background technique [0002] At present, most of the backrest frames used in passenger car seats on the market are metal backrests. The main disadvantages are: (1). To adapt to the environmental requirements of the car body, the electroplating of the metal skeleton processing process is not friendly to the environment; (2), the processing process is complex, and there are as many as dozens of processes in the entire production process, which brings certain difficulties to processing, manufacturing and management; ( 3), the overall parts are heavy, it is difficult to meet the requirements of lightweight vehicles and the national call for energy conservation and emission reduction; (4), in terms of energy consumption, the production of plastic raw materials can save more energy than the production of metal raw materials, the above ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to set honeycomb or cross-shaped reinforcing ribs in the groove of the car seat frame in the prior art, resulting in a large groove width, so that when the reinforcing ribs in the groove receive impact force, they are not only under pressure, but also Under the tension, the function of the honeycomb support is lost, and a back frame of the passenger car seat that can withstand the impact as a whole is provided.

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