Translational energy-absorbing seat for protecting neck during rear-end collision

Abstract

The invention discloses a translational energy-absorbing seat for protecting the neck during rear-end collision and belongs to the technical field of automotive passive safety. A seat translational energy-absorbing mechanism is arranged on a slideway of a conventional automobile seat; and the mechanism is arranged under a seat cushion and symmetrically arranged on two sides of the seat. During rear-end collision, the provided translational energy-absorbing mechanism can make the seat and the passenger translate a certain distance backward under the action of a certain constraint force, and reduce relative motion of the trunk and the head of the passenger. Therefore, the neck injury to the automobile passenger during rear-end collision is effectively reduced. Meanwhile, the translational energy-absorbing seat overcomes the defect that the conventional passenger neck protecting seat during rear-end collision has heavy weight, high cost, narrow rear-end collision speed range, and the like, and has better application prospects.

Description

technical field [0001] The invention relates to a neck protection seat for a rear-end collision occupant, which belongs to the technical field of automobile passive safety. Background technique [0002] Rear-end collision accidents are one of the most common types of collisions on the road. Although the fatal injuries to occupants are relatively small, the social expenditures caused by neck injuries caused by rear-end collision accidents are relatively large. The Euro NCAP anti-whiplash protocol introduced in Europe in 2008 has 4 points out of 36 points for adult protection, which has sparked a wave of research on whiplash. Whiplash injury refers to the injury caused by the whipping movement of the occupant's neck in a rear-end collision. At present, the mechanism of its injury is not clear, but it is generally believed that reducing the relative movement of the occupant's torso and head can reduce whiplash injuries. At the same time, some car manufacturers have produced se...

AI Technical Summary

Problems solved by technology

The main disadvantage of this mechanism is that under the frontal collision, the seat part of the mechanism is prone to move forward, thus aggravating the damage of the occupant

In addition, the layout of the steel bars with unequal cross-sections and the three bending rollers makes the steel bars prone to fatigue failure in the process of being stretched and then straightened

At the same time, the steel bar is relatively long, and the additional mass to the seat is large, so it is difficult to popularize

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