Passive safety protection device for automobile steering wheel

Abstract

The invention provides an automotive steering wheel passive safety protection device formed by manners of deflection, compression, deformation buffer and the like. Life safety of a driver can be protected better. When frontal collision occurs, after a steering wheel contacts with a person, an eccentric self-locking device 9 presses and wedges an elastic metal plate 10 to absorb impact energy through rotation, meanwhile, the wheel panel angle is adjusted to increase contact area between the steering wheel and the human body and reduce impact pressure. A large part of energy generated by the collision is transmitted to a steering column, an upper rotary shaft 4 of the steering column is compressed, absorbs energy and deflects forwards. When the head of the human body moves forwards due to great inertia and contacts with the upper edge of the steering wheel, an elastic wheel edge buffers and deforms, and injuring possibility of the head and the neck is reduced. Finally, the impact energy is transmitted to a cylindrical spiral spring 12 through a spherical pad 11, and the processes for the upper rotary shaft 4 of being compressed and energy absorbing are completed. The automotive steering wheel passive safety protection device is safe and reliable, easy to produce and maintain, reusable, and can be widely applied to general carrying vehicles.

Description

technical field [0001] The invention relates to a method for passive safety protection of automobiles, in particular to a safety protection device composed of deflection, compression buffer and buffer deformation. Background technique [0002] With the rapid development of society and the increasing popularity of automobiles in people's lives, the indicators of automobile safety performance have attracted more and more attention. In the frontal collision of a car, whether equipped with airbags or not, the human body will have direct or indirect collision contact with the steering wheel. If the steering wheel stiffness is very large, it will cause serious injury to the human body. At present, although the relatively mature steering wheel protection mechanism used can achieve the purpose of compressing and absorbing energy, it does not have a good cushioning effect; there is no good solution to the damage of the steering wheel to the human chest and abdominal cavity; the stee...

AI Technical Summary

Problems solved by technology

If the steering wheel stiffness is too high, it will cause serious injury to the human body

At present, although the relatively mature steering wheel protection mechanism used can achieve the purpose of compressing and absorbing energy, it does not have a good cushioning effect; there is no good solution to the damage of the steering wheel to the human chest and abdominal cavity; the steering column can only axially Telescopic, can not deflect universally, can not add more space for the human body to move forward due to inertia; in the existing steering mechanism, the problem of direct damage to the head and neck of the human body by the steering wheel during collision has not been effectively solved

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