Split-type car seat back structure

Abstract

The invention relates to a split-type car seat back structure which comprises a back upper-end framework, a back lower-end framework, a first rotating buffer device and a second rotating buffer device. According to the technical scheme, an entire seat back is replaced by the back upper-end framework and the back lower-end framework through an improvement; the rotating buffer devices are arranged between the back upper-end framework and the back lower-end framework; the back lower-end framework is equipped with a deformable structure, so that the energy-absorbing space between the seat back anda passenger can be sufficiently utilized through the backward rotating motion of the back lower-end framework, the buffer energy-absorbing effect of torsion springs can be achieved, and the collisionimpact between the passenger and a seat can be reduced; through the backward movement of the back lower-end framework of the seat, the uniform rigid contact between the back of the passenger and theentire framework of the seat back can be facilitated, and the stress on the back of the passenger can be dispersed to the greatest extent; and by the adoption of the split-type car seat back structure, not only can the driving comfort of the passenger be guaranteed, but also the car safety can be improved.

Description

technical field [0001] The invention belongs to the technical field of car seats, in particular to a split car seat backrest structure. Background technique [0002] As one of the most important interior parts of a car, a car seat is mainly used to support the weight of the occupant, ease and attenuate the shock and vibration transmitted from the car body, and create comfortable and safe riding conditions for the occupant. In order to meet the comfort requirements, the current seat back structure basically adopts a backward tilting design. [0003] However, during driving, there is incomplete contact between the driver's back and the seat back, and often the lower back of the occupant contacts the lower structure of the seat back, while there is a certain gap between the upper back of the occupant and the upper structure of the backrest. In the event of an accident such as a rear-end collision, the occupant will move backward instantaneously, and the lower frame structure o...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a split car seat back structure to solve the problem that the integral frame structure design of the car seat back cannot make full use of the energy-absorbing space between the seat back and the passenger's back. Issues causing occupant neck injuries

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