An active protective head restraint device for automobile seat, which is used for protecting head and neck from whipping injury

Abstract

An active protective headrest device for automobile seat against whipping injury of head and neck, including seat frames, The seat frame is divided into a horizontal seat frame and a backrest seat frame, Horizontal seat frame and backrest seat frame are integrated, A rotational shaft is arranged on the backrest seat frame, A head restraint rotate tube is arranged on that rotate shaft, A swivel tube of that head restraint is connecte with the head restraint through a head restraint strut, A left torsion spr and a right torsion spring are arrange on both sides of that rotating shaft and the outer arm of the torsion spr is pressed on the head restraint strut, A head restraint rotate tube is fixed to that upper end of the limit rod, A low end of that limit lever is arrange on the controller, Alocate slider is arrange in that controller, and a positioning spring is arranged between the limit rod and the positioning slider. The invention adopts a rotary head restraint and uses a torsion spring instead of an air cylinder or a pyrotechnic driver to provide power, thus solving the problem of limiting the range of motion of the head and neck, and avoiding the problem of damaging the head and neck of a human body by rigid driving.

Description

technical field [0001] The invention relates to the technical field of automobile safety and lifesaving, in particular to an active protective automobile seat headrest device for preventing head and neck injuries caused by whiplash. Background technique [0002] In car rear-end collisions, about 90% of occupant injuries are neck injuries. The high incidence of neck injury and the often long-term symptoms caused by it make the patients bear great pain and bring huge economic losses to the society. Neck injuries are generally not life-threatening, but they are common and costly to treat, and may produce long-term, significant sequelae. When a car is rear-ended, the head is first swung backwards and then forwards due to acceleration, resulting in whiplash. [0003] The occurrence of whiplash injuries can be effectively reduced by limiting the space for head movement. At this stage, there is no active protection device installed on the car to prevent whiplash injuries. The pr...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an active protective car seat headrest device for preventing head and neck whiplash injuries, starting from the perspective of effectively limiting the movement space of the head and neck and not causing harm to the human body , using a rotating headrest, using a torsion spring instead of a cylinder or a pyrotechnic driver to provide power, which not only solves the problem of limiting the range of motion of the head and neck, but also avoids the problem of damage to the human head and neck caused by rigid drive

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