Device for automatically collapsing steering wheel

Abstract

The invention relates to an automatic steering wheel collapsing device, in particular to a collapsing device which can cause a steering wheel to automatically and quickly slide and depart from a driver in an elevation manner when a vehicle is collided. The steering wheel collapsing device comprises a column provided with a steering wheel, an internal frame body for fixing the column and capable of slide, an external frame body for the internal frame body to selectively slide and capable of elevation, a mobile unit to actuate the internal frame body and the external frame body to move relatively to the vehicle body and then form an elevation, and an actuating unit for actuating the mobile unit. By the design, when a vehicle is collided in a traffic accident, the actuating unit can actuate the mobile unit to drive the internal frame body and the external frame body to move relatively to a vehicle body in sequence and then form an elevation, so as to cause the steering wheel to depart quickly from the driver and protect the safety of life of the driver.

Description

technical field [0001] The present invention belongs to a vehicle steering wheel structure, and specifically refers to an automatic steering wheel collapsing device, which allows the steering wheel and the machine column to instantly and automatically selectively generate slip and elevation angles when the vehicle collides with any part. The crushing device can effectively reduce the damage caused by the driver hitting the steering wheel in the event of a car accident. Background technique [0002] The steering wheel is a kind of steering equipment used to control the direction of the vehicle. It is located directly in front of the driver. Because it is easy to control the vehicle, it is often close to the driver's body. In the case of a side impact, the driver will impact the steering wheel forward due to the inertia of the impact force of the vehicle or the steering wheel will hit the driver due to external force, often resulting in serious injury to the driver's head and ...

AI Technical Summary

Problems solved by technology

However, in fact, when a car accident occurs, the auxiliary airbag will instantly inflate due to the high-speed explosion of the gas, and because the distance between the driver and the steering wheel is often too close, there will be a gap between the instantaneous bursting of the auxiliary airbag and the forward impact on the driver. Crash phenomena are produced so that there are many instances of drivers being injured by auxiliary airbags reported

[0005] In addition, the steering wheel is designed to be located directly in front of the driver and the two are very close to each other. The distance and space have certain restrictions on the capacity and depth of the auxiliary airbag after inflation, especially at high speeds. In car accidents, under the limited protection of auxiliary airbags with general capacity and depth, drivers often suffer trauma and death due to violent collisions with auxiliary airbags and steering wheels. Therefore, two-stage intelligent auxiliary airbags with larger capacity and depth have been developed.

[0006] Furthermore, although there has been the development and configuration of collapsible steering column columns in recent years, the inertial force of the driver impacting the auxiliary airbag and steering wheel is used in a car accident to cause the steering wheel to collapse, but at this time the driver has hit the auxiliary airbag. Compared with the traditional non-collapsible steering wheel, the airbag and the steering wheel can absorb energy to reduce the impact force, but in fact, in the process of collapsing the column of the collapsible steering wheel, it will still cause damage to the driver. A considerable degree of injury, but the case report of traffic accidents still shows that the auxiliary airbag has exploded, the collapsible steering wheel has collapsed, and the driver is finally injured, which shows that there is still room for reinforcement of the existing vehicle safety protection requirements

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