CN201506323U - Airbag device for drivers - Google Patents

Abstract

The utility model relates to an airbag device for drivers, which solves the problems that because the inclined angle of a steering column is larger, the area of the air bag after the airbag is unfolded only can protect the head and neck parts contacted with the airbag and can not effectively protect the chest of the driver. The airbag comprises a support, a gas generator and an air bag, wherein the air bag comprises an air bag upper piece and an air bag lower piece. The airbag is characterized in that the air bag upper piece and the air bag lower piece are respectively in a petal shape. The utility model has the advantages that under the premise of not increasing the pressure of the generator, the protection area of the air bag for the driver is increased, so that the air bag not only can protect the head and neck parts of the driver, but also the chest of the driver; and the utility model can effectively prevent the collision of the driver with the lower rim of a steering wheel to result in the injury to the chest due to too large inclined angle of the steering wheel.

Description

The driver airbag device

Technical field

The utility model relates to a kind of air bag device that is provided on the automobile, particularly a kind of driver airbag device that is applied on the angle of steering tubular column car body bigger than normal.

Background technology

At present, the driver side safety air bag of the circular bag of tradition sheet under the smaller car load deployment scenarios in Vehicular turn tubing string inclination angle, can provide effective protection to head, neck and the chest of chaufeur.But along with the development need that vehicle complete vehicle is arranged, the inclination angle of steering column often is greater than 23 °.At this moment; in the collision happens process; because bigger steering column inclination angle; the air-bag deployment stage can be partial to the head and neck of chaufeur; and can't provide effective protection zone to the chaufeur chest; cause the lower rim of chaufeur chest and steering handwheel to bump easily, cause the grievous injury of chaufeur chest.Though this situation can strengthen airbag protection volume and solve by improving the pressure of producer, can bring the raising of cost like this.

Summary of the invention

The purpose of this utility model is will provide a kind of to solve because of the steering column inclination angle greatlyyer, and the airbag area behind the air-bag deployment only can be protected the neck position that is in contact with it, and but can't effectively protect the driver airbag device of the problem of chaufeur chest.

The utility model is achieved in that it is made of support, gas generator and airbag, and wherein airbag is made up of sheet under airbag last slice, the airbag, and its special character is: the sheet profile is a lobe shape under described airbag last slice, the airbag.

This driver airbag device is under the prerequisite that does not improve producer pressure; by sheet under airbag last slice and the airbag is designed to lobe shape; strengthened the protection area of airbag, made it can protect the chaufeur head and neck, also can effectively protect the chaufeur chest chaufeur.Can effectively avoid causing chaufeur and steering handwheel lower rim to bump, cause the chest injury because the steering handwheel inclination angle is excessive.

Description of drawings

Fig. 1 is this driver airbag deployed condition scheme drawing;

Fig. 2 is that the D of Fig. 1 is to view;

Fig. 3 is that this driver airbag is when launching fully and dummy's relative position scheme drawing.

Among the figure: the 1-support; The 2-gas generator; The 3-airbag; Sheet under the 301-airbag; 302-airbag last slice; The 4-steering handwheel; 5-dummy; The A-airbag launches thickness; B-bearing circle and dummy's chest distance; A '-airbag internal diameter size; B '-airbag outside dimension; C-lobe spacing.

The specific embodiment

As shown in the figure, this driver airbag device is to be made of support 1, the gas generator 2 and the airbag 3 that are installed on the support 1, wherein airbag 3 is made up of sheet 301 under airbag last slice 302, the airbag, and sheet 301 profiles are lobe shape under described airbag last slice 302, the airbag.The size of airbag 3 outside dimension B ' and airbag 3 internal diameter size A ' depends on that when airbag 3 launches fully and contacts with dummy 5 steering handwheel 4 launches thickness A with dummy's 5 chests apart from B and airbag 3, and the design of lobe spacing C is not more than dummy's 5 chest width.

During installation; this driver airbag device is installed in steering handwheel 4 centers; when vehicle generation sufficient intensity collides; gas generator 2 is lighted a fire; gas enters airbag 3; gradually airbag 3 is full of; in being full of process; floweriness keel around the sheet 301 under airbag last slice 302 and the airbag; under the prerequisite that producer pressure is not changed, strengthened the protection area of airbag, thereby it is excessive to have eliminated the steering handwheel inclination angle to the occupant; the risk that chaufeur and steering handwheel bump reaches the purpose of protecting chaufeur.

Claims (1)

1. a driver airbag device is made of support, gas generator and airbag, and wherein airbag is made up of sheet under airbag last slice, the airbag, it is characterized in that: the sheet profile is a lobe shape under described airbag last slice, the airbag.

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